Macbook Air Mid 2013 - Keys freeze up now and then

Hey there, I'm getting a little bit paranoid as I'm wondering if I have a key logger here on my Mavericks installation (10.9.5) on this macbook air; but every now
and then when I'm in Outlook or some Chat client working away - suddenly - some keys stop working ! Like the Delete key does not remove previously typed
letters, or the Letter "A" stops working, then -- after 30 seconds or so it comes back!?
Do other people experience sudden keyboard freezes like this? trackpad works fine.. It's a Mid 2013 with i7 1.7GHz and 8GB of RAM.. so it has no performance
issues, as it runs outlook and some office apps. I patched up Office to the latest version too.
So very weird, my next step is Yosemite and crossing my fingers or the apple store?
c

Thanks tool, looks great. I will give it a go, i think you are right - it could be some errant IT tool that my company has installed, they have some terrible
Casper suite (which i deactivated), perhaps it's throwing up some Interrupts.. no clue, but Activity Monitor tells me zero.
Thanks again , will be downloading the tool shortly!
c

Similar Messages

MacBook Air (Mid 2013/Mavericks) - Freezes, requires hard restart

11-inch, Mid 2013 MacBook Air.
Upgraded to OS X Mavericks in December 2013 - have downloaded every fix/patch as prompted by the App Store.
Relatively simple use pattern - word processing and web work. No bootcamp or 3rd party software, out side of Mozila products (that I am aware of).
Aproximately once every 12 hours (regardless of continuous use), the entire computer freezes. It does not take input from any input devices/including external keyboard and mouse (which I normally do not use). The only way to fix this is a hard-restart.
I have previously suffered from sleep/wake crashes, this is a new sympton of purpose the same problem?
Getting anxious as I approach my final exams - which are written on computers. Apple - which specifically targets students and technologically unsavvy customers - has created a faulty product, unfit for the purpose for which it was sold.
Any suggestions on fixing or mitigating this problem?
My only thoughts have been a link to RAM use? I don't usually browse flash-websites or keep more than one word processing window open at once.!
Many Thanks!

1. This procedure is a diagnostic test. It changes nothing, for better or worse, and therefore will not, in itself, solve the problem.
2. If you don't already have a current backup, back up all data before doing anything else. The backup is necessary on general principle, not because of anything in the test procedure. Backup is always a must, and when you're having any kind of trouble with the computer, you may be at higher than usual risk of losing data, whether you follow these instructions or not.
There are ways to back up a computer that isn't fully functional. Ask if you need guidance.
3. Below are instructions to run a UNIX shell script, a type of program. All it does is to collect information about the state of the computer. That information goes nowhere unless you choose to share it. However, you should be cautious about running any kind of program (not just a shell script) on the advice of a stranger. If you have doubts, search this site for other discussions in which this procedure has been followed without any report of ill effects. If you can't satisfy yourself that the instructions are safe, don't follow them. Ask for other options.
Here's a summary of what you need to do, if you choose to proceed:
☞ Copy a line of text in this window to the Clipboard.
☞ Paste into the window of another application.
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☞ Paste the results, which will have been copied automatically, back into a reply on this page.
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4. You may have started the computer in "safe" mode. Preferably, these steps should be taken in “normal” mode. If the system is now in safe mode and works well enough in normal mode to run the test, restart as usual. If you can only test in safe mode, do that.
5. If you have more than one user, and the one affected by the problem is not an administrator, then please run the test twice: once while logged in as the affected user, and once as an administrator. The results may be different. The user that is created automatically on a new computer when you start it for the first time is an administrator. If you can't log in as an administrator, test as the affected user. Most personal Macs have only one user, and in that case this section doesn’t apply. Don't log in as root.
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PATH=/usr/bin:/bin:/usr/sbin:/sbin; clear; Fb='%s\n\t(%s)\n'; Fm='\n%s\n\n%s\n'; Fr='\nRAM details\n%s\n'; Fs='\n%s: %s\n'; Fu='user %s%%, system %s%%'; AC="com.autodesk.AutoCAD com.evenflow.dropbox com.google.GoogleDrive"; H='^[[:space:]]*((127\.0\.0\.1|::1|fe80::1%lo0)[[:space:]]+local|(255\.){3}255[[:space:]]*broadcast)host[[:space:]]*$'; NS=networksetup; PB="/usr/libexec/PlistBuddy -c Print"; A () { [[ a -eq 0 ]]; }; M () { find -L "$d" -type f | while read f; do file -b "$f" | egrep -lq XML\|exec && echo $f; done; }; AT () { o=`file -b "$1" | egrep -v '^(A.{16}t$|cann)'`; Ps "${1##*/} format"; }; Pc () { o=`grep -v '^ *#' "$2"`; l=`wc -l <<< "$o"`; [[ l -gt 25 ]] && o=`head -n25 <<< "$o"`$'\n'"[$((l-25)) more line(s)]"; Pm "$1"; AT "$1"; }; Pm () { [[ "$o" ]] && o=`sed -E '/^ *$/d;s/^ */ /;s/[-0-9A-Fa-f]{22,}/UUID/g;s/(ochat)\.[^.]+(\..+)/\1\2/;/Shared/!s/(\/Users\/)[^/]+/\1-/g' <<< "$o"` && printf "$Fm" "$1" "$o"; }; Pp () { o=`$PB "$2" | awk -F'= ' \/$3'/{print $2}'`; Pm "$1"; }; Ps () { o=`echo $o`; [[ ! 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R && echo $'No root access\n'; SP Software | sed -n 's/^ *//;5p;6p;8p'; h=(`SP Hardware | awk '/ Id/{print $3}; /Mem/{print $2}'`); o=$h; Ps Model; o=$((h[1]<4?h[1]:0)); Ps "Total RAM (GB)"; o=`SP Memory | sed '1,5d;/[my].*:/d'`; [[ "$o" =~ s:\ [^EO]|x([^8]|8[^0]) ]] && printf "$Fr" "$o"; o=`SP Diagnostics | sed '5,6!d'`; [[ "$o" =~ Pass ]] || Pm POST; p=`SP Power`; o=`awk '/Cy/{print $NF}' <<< "$p"`; o=$((o>=300?o:0)); Ps "Battery cycles"; o=`sed -n '/Cond.*: [^N]/s/^.*://p' <<< "$p"`; Ps "Battery condition"; for b in FireWire Thunderbolt USB; do o=`SP $b | sed -En '/:$/{s/ *:$//;x;s/\n//;/Apple|Intel|SMSC/d;s/\n.*//;/\)/p;};/^ *(V.+ [0N]|Man).+ /{s/ 0x.... //;s/[()]//g;s/(.+: )(.+)/ (\2)/;H;}'`; Pm $b; done; o=`pmset -g therm | sed 's/^.*C/C/'`; [[ "$o" =~ No\ th|pms ]] && o=; Pm Heat; o=`pmset -g sysload | grep -v :`; [[ "$o" =~ =\ [^GO] ]] || o=; Pm "System load"; o=`nvram boot-args | awk '{$1=""; print}'`; Ps "boot-args"; o=; fdesetup status | grep -q On && o=On; Ps FileVault; a=(/ ""); A=(System User); for i in 0 1; do o=`cd ${a[$i]}L*/Lo*/Diag* || continue; for f in *.{cr,h,pa,s}*; do [[ -f "$f" ]] || continue; d=$(stat -f%Sc -t%F "$f"); [[ "$f" =~ h$ ]] && grep -lq "^Thread c" "$f" && f="$f *"; echo "$d ${f%%_2*} ${f##*.}"; done | sort | tail`; Pm "${A[$i]} diagnostics"; done; grep -lq '*$' <<< "$o" && printf $'\n\t* Code injection\n'; o=`syslog -F bsd -k Sender kernel -k Message CReq 'caug|GPU |hfs: Ru|last value [1-9]|n Cause: -|NVDA\(|pagin|proc: t|Roamed|rror|ssert|Thrott|timed? ?o|WARN' -k Message Ane 'SMC:' | tail -n25 | awk '/:/{$4=""; $5=""};1'`; Pm "Kernel log"; o=`df -m / | awk 'NR==2 {print $4}'`; o=$((o<5120?o:0)); Ps "Free space (MiB)"; o=$(($(vm_stat | awk '/eo/{sub("\\.",""); print $2}')/256)); o=$((o>=1024?o:0)); Ps "Pageouts (MiB)"; s=( `sar -u 1 10 | sed '$!d'` ); [[ s[4] -lt 85 ]] && o=`printf "$Fu" ${s[1]} ${s[3]}` || o=; Ps "Total CPU usage" && { s=(`ps acrx -o comm,ruid,%cpu | sed '2!d'`); n=$((${#s[*]}-1)); c="${s[*]}"; o=${s[$n]}%; Ps "CPU usage by process \"${c% ${s[$((n-1))]}*}\" with UID ${s[$((n-1))]}"; }; s=(`top -R -l1 -n1 -o prt -stats command,uid,prt | sed '$!d'`); n=$((${#s[*]}-1)); s[$n]=${s[$n]%[+-]}; c="${s[*]}"; o=$((s[$n]>=25000?s[$n]:0)); Ps "Mach ports used by process \"${c% ${s[$((n-1))]}*}\" with UID ${s[$((n-1))]}"; o=`kextstat -kl | grep -v com\\.apple | cut -c53- | cut -d\< -f1`; Pm "Loaded kernel extensions"; R && o=`sudo launchctl list | awk 'NR>1 && !/0x|com\.(apple|openssh|vix\.cron)|org\.(amav|apac|calendarse|cups|dove|isc|ntp|openld|post[fg]|x)/{print $3}'`; Pm Daemons; o=`launchctl list | awk 'NR>1 && !/0x|com\.apple|org\.(x|openbsd)|\.[0-9]+$/{print $3}'`; Pm Agents; o=`for d in {/,}L*/Lau*; do M; done | egrep -v 'com\.apple\.(CSConfig|server)' | while read f; do ID=$($PB\ :Label "$f") || ID="No job label"; printf "$Fb" "$f" "$ID"; done`; Pm "launchd items"; o=`for d in /{S*/,}L*/StartupItems; do M; done`; Pm "Startup items"; sys=`pkgutil --regexp --only-files --files com.apple.pkg.* | sort | uniq | sed 's:^:/:'`; b=`sed -E '/^.+Lib.+\/Contents\/Info.plist$/!d;s/\/Info.plist$//;/Contents\/./d' <<< "$sys"`; l=`egrep '^/usr/lib/.+dylib$' <<< "$sys"`; [[ "$b" && "$l" ]] && { o=`find -L /S*/L*/{C*/Sec*A,E}* {/,}L*/{A*d,Compon,Ex,In,iTu,Keyb,Mail/B,P*P,Qu*T,Scripti,Sec,Servi,Spo}* -type d -name Contents -prune | grep -Fv "$b" | while read d; do test -f "$d/Info.plist" || continue; ID=$($PB\ :CFBundleIdentifier "$_") || ID="No bundle ID"; printf "$Fb" "${d%/Contents}" "$ID"; done`; Pm "Loadable bundles"; o=`find /usr/lib -type f -name *.dylib | grep -Fv "$l"`; Pm "Shared libraries"; :; } || echo $'\nReceipts missing'; o=`for e in INSERT_LIBRARIES LIBRARY_PATH; do launchctl getenv DYLD_$e; done`; Pm "Inserted dylibs"; o=`find -L {,/u*/lo*}/e*/periodic -type f -mtime -10d`; Pm "Modified periodic scripts"; o=; defaults read /Library/Preferences/com.apple.alf globalstate | grep -q 0 || o=On; Ps Firewall; o=`scutil --proxy | grep Prox`; Pm Proxies; o=`scutil --dns | awk '/r\[0\] /{if ($NF !~ /^1(0|72\.(1[6-9]|2[0-9]|3[0-1])|92\.168)\./) print $NF; exit}'`; i=`route -n get default | awk '/e:/{print $2}'`; I=`$NS -listnetworkserviceorder | sed -En '/ '$i'\)$/{x;s/^$.+$ //p;q;};x'`; n=`$NS -getdnsservers "$I" | awk '!/^T/{printf "not "; exit}'`; Ps "DNS (${n}from DHCP)"; o=`$NS -getinfo "$I" | awk '/k:/{if ($3 !~ "(255\.){3}0") print}; /v6:/{if ($2 !~ "A") print}'`; Pm TCP/IP; [[ "$I" =~ [AW]i ]] && { o=`/S*/*/P*/*/*/*/*/airport -I | awk '/lR/{print $2}'`; o=$((o<=-87?o:0)); Ps RSSI; }; R && o=`sudo profiles -P | grep : | wc -l`; Ps Profiles; f=auto_master; [[ `md5 -q /etc/$f` =~ ^b166 ]] || Pc $f /etc/$f; for f in fstab sysctl.conf crontab launchd.conf; do Pc $f /etc/$f; done; f=/etc/hosts; Pc hosts <(egrep -v "$H" $f ); AT $f; Pc "User launchd" ~/.launchd*; R && Pc "Root crontab" <(sudo crontab -l); Pc "User crontab" <(crontab -l); R && o=`sudo defaults read com.apple.loginwindow LoginHook`; Pm "Login hook"; LD="$(`find /S*/*/F* -type f -name lsregister | head -n1` -dump)"; o=`for ID in $AC; do [[ "$LD" =~ $ID ]] && echo $ID; done`; Pm "App check"; Pp "Global login items" /L*/P*/loginw* Path; Pp "User login items" L*/P*/*loginit* Name; Pp "Safari extensions" L*/Saf*/*/E*.plist Bundle | sed -E 's/(\..*$|-[1-9])//g'; o=`find ~ $TMPDIR.. $ -flags +sappnd,schg,uappnd,uchg -o ! -user $UID -o ! -perm -600 $ | wc -l`; Ps "Restricted user files"; cd; o=`find .??* -path .Trash -prune -o -type d -name *.app -print -prune`; Pm "Hidden apps"; o=`SP Fonts | egrep 'id: N|te: Y' | wc -l`; Ps "Font issues"; o=`find L*/{Con,Pref}* -type f ! -size 0 -name *.plist | while read f; do plutil -s "$f" >&- || echo $f; done`; Pm "Bad plists"; d=(Desktop L*/Keyc*); n=(20 7); for i in 0 1; do o=`find "${d[$i]}" -type f -maxdepth 1 | wc -l`; o=$((o<=n[$i]?0:o)); Ps "${d[$i]##*/} file count"; done; o=; [[ UID -eq 0 ]] && o=root; Ps UID; o=$((`date +%s`-t)); Ps "Elapsed time (s)"; } 2>/dev/null | pbcopy; exit 2>&-
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Macbook air mid 2013, I erased my HD and while downloading the OS screen went of and when I switched back on I get a file icon with a question mark.

I erased my HD and while downloading a new screen went of.When I switched on again there was a file icon with a question mark

restart holding down command+r, you'll be able to reinstall your OS here

Macbook Air mid-2013 suddenly not booting - showed battery icon then died

Hi all,
This morning, I used my Macbook Air (mid-2013) to send an email and check up on my usual stuff, nothing I've not done hundreds of times. I then closed the lid and went to work. Again, nothing I've never done before.
When I got home though, I opened the Macbook and it didn't wake up, which I thought was odd. So I pressed the power button. For a few seconds, it showed an icon in the middle of a black screen that was related to the battery - sorry I can't recall exactly what it looked like, its the first time I've seen it, but it showed an empty battery with a small red part of it left - obviously understood as meaning the battery was flat.
I was puzzled at this; it should have been asleep since I'd closed the lid, how could it have run out? I was only gone for about 8 hours as well, I usually get more battery life than that out of it when I'm actually using it, never mind when its sleeping.
But I thought whatever, and plugged it in for a few minutes to charge it up enough to turn on and maybe see why it had done this. The orange light came on the Magsafe end, but after a few minutes, still nothing.
Cue much panicking and looking around at things, and this is what I've discovered/tried:
- The battery appears to be charging, the light eventually went green.
- When I press the power button, the Mac does power on; I can hear the fan inside if I put my ear to it (note that this means its really quiet, its not blowing at full power or anything), and the Mac is getting hot on the left hand side where the power adapter plugs in. It turns on both when plugged in and when its not. So the battery has power and the machine is turning on, it just isn't booting or doing anything. I can turn it off if I hold the power button down for about 3 seconds, the fan stops. But everything else is completely unresponsive. Also, it gets quite hot pretty quick, hotter than it normally does when in use.
- I've reset the SMC, several times. When I do this, the light on the Magsafe goes green for a second, then back to orange, as though I've just plugged it in. I guess this means it is responding to the SMC reset, but it does nothing in terms of getting the thing started. This is the first thing people suggest with this problem, but I've already done it and while it seems to be doing its thing, it doesn't fix the problem.
- I've tried resetting the PRAM/NVRAM. This has no noticeable affect on anything.
- I've tried holding a bunch of different keys when starting up (cmd+R etc.) but again, nothing.
- I've tried something crazy suggested in another thread; leaving the Macbook partially opening and shaking it, which supposedly does something to the "sudden motion sensor". I wouldn't have tried this but a whole bunch of people said it worked for them, but it does nothing for me. The fact this step didn't work is why I made a new thread; because the issue with those people seemed to be that their Macs wouldn't wake up from sleep/hibernation and shaking it somehow did that, or they just magically woke up on their own.
And at this stage I seem to have run out of thing to try.
I've made an appointment at the Genius bar but the earliest they could do is Saturday, which is pretty crappy and I'm going travelling in less than 2 weeks, so I really need my Macbook to sort out the details since a lot of info about it is on there exclusively.
Does anyone know any reason why this might have happened?
Why would the battery drain so fast when it was supposed to be sleeping?
Why will it now not boot at all, even though it's powering up in some way? Could it not booting be related to the fact the battery seemed to run completely flat, and this has done something to the software or hardware?
Any suggestions beyond what I've tried already?
If I can't get it working before my Genius appointment, I'll post what happens here just in case any one else has this issue so people will have an idea of what might have happened to them.
Thanks in advance!

olliemilne wrote:
- I've tried holding a bunch of different keys when starting up (cmd+R etc.) but again, nothing.
You could try booting the MBP using the OPTION+COMMAND+R keys and see if it will connect to the Apple servers. This would allow you to install the original OSX . I have my doubts though.
- I've tried something crazy suggested in another thread; leaving the Macbook partially opening and shaking it, which supposedly does something to the "sudden motion sensor".
The Sudden Motion Sensor is applicable for conventional Hard Drives, not the SSD that is in a MBA. Doing that will serve no useful purpose.
You have exhausted all reasonable options and will just have to have the MBA evaluated at the genius bar.
Ciao.

Solution to install Windows 7 on Macbook Air MID-2013 after 3 weeks of test, make with ISO image a usb key 2.0, It works!

Solution to install Windows 7 on Macbook Air MID-2013 after 3 weeks of test, make with ISO image a usb key 2.0, It works!

1. Select Partition4: Bootcamp. You should see advanced Options.
2. Click Format and convert the partition to NTFS.
3. Click Next.
Reference - http://manuals.info.apple.com/MANUALS/1000/MA1636/en_US/boot_camp_install-setup_ 10.8.pdf
See Page 6.

MacBook Air Mid 2013 BootCamp Windows 8.1 Compability

Dear All, actually I have a doubt on installing Windows 8.1 on MacBook Air Mid 2013 by using BootCamp. the thing is when I bought Windows 8.1 from a typical computer accessories store, I been told by the salesperson that there will be no problems at all after installing it, but after I installed the Windows 8.1 on my friend's MacBook Air, the USB ports and trackpad seems like no functioning at all, and the sadest thing is the Computer cant be turn off!!! Its there any remedies on this problem? Or should I just use Windows 8 or either Windows 7 because seems like there is still dont have any software update from Apple, Guys, I need helps from you guy. Thanks!!!!

Thanks themachead: I have tried the adaptors on different macs, as I indicated in my post. The adaptor works fine with a different mac
Yes, I have also tried starting up with the monitor connected, and disconnected.
I just got off the phone with Apple Care. They couldn't solve my issue through normal means, but during one attempt, we closed my MacBook Air while it was connected to the external display, with my Magic Mouse and Apple Keyboard connected via Bluetooth. The external monitor did not come on. However when I opened my Macbook Air's screen, we saw that my Mac had crashed and prompted me to reboot. When it did, the external monitor worked. I have been able to disconnect and reconnect the monitor and it seems to be working now. I will see what happens after a few attempts.

MacBook Air mid-2013 OSX 10.9.1 cannot connect to DVI Monitor

Does anyone else have this problem? I've seen similar issues raised, but so far can't find a solution to my particular issue:
MacBook Air Mid 2013 (ordered Jan 2014)
- 1.3GHz Intel Core i5
- 8GB 1600MHz DDR3 RAM
- OSX 10.9.1 Mavericks.
When I connect my MacBook Air to any monitor (well, I've tried three monitors: Benq, NEC and Samsung) the monitor will not detect an attached computer. The MacBook also does not think it's connected to an external display.
If I connect via VGA cable, it works fine most of the time*, so the display port seems to work only for VGA and not DVI.
I am using mini display port adapters (DVI and VGA) purchased from the Apple Store.
The adapter for the mini display to DVI works fine, since I can get my 2009 MacBook unibody to connect to an external display via DVI without issue. So it's not the adapter, or the DVI cable.
I have tried resetting the System Management Controller for my MacBook air but it does not work. No matter how many times I reset the computer (Hard reset, Soft power down, SMC reset) I cannot get it to connect via DVI.
Has anyone experienced this issue, or seen a resolution for it?
*The only other symptom I get periodically, is that after being disconnected from a VGA monitor, the computer will periodically (about 2/5 times) not connect to the VGA monitor either without a reboot. However it will connect most of the time, and ALL of the time after a reboot.
Thank you

Thanks themachead: I have tried the adaptors on different macs, as I indicated in my post. The adaptor works fine with a different mac
Yes, I have also tried starting up with the monitor connected, and disconnected.
I just got off the phone with Apple Care. They couldn't solve my issue through normal means, but during one attempt, we closed my MacBook Air while it was connected to the external display, with my Magic Mouse and Apple Keyboard connected via Bluetooth. The external monitor did not come on. However when I opened my Macbook Air's screen, we saw that my Mac had crashed and prompted me to reboot. When it did, the external monitor worked. I have been able to disconnect and reconnect the monitor and it seems to be working now. I will see what happens after a few attempts.

How do I mirror my Macbook Air (Mid 2013) with my IMac (late 2006)?

How do I mirror my Macbook Air (Mid 2013) with my IMac (late 2006)?

Look at Target Display Mode:
http://support.apple.com/kb/ph4469
http://support.apple.com/kb/ht3924
Ciao.

Macbook Air Mid 2013 No Built-In Audio

Hey everyone,
I have an issue with my friends Macbook Air (Mid 2013 Model). After listening to some music through his speakers, he unplugged his Aux cable and then plugged them back in to find that he didnt have built in output or input anymore. I have tried all of the following to fix it:
Reinstall OS X 10.8
Run all of the Automation tools found in the application Onyx
Reinstall certain .kext files (AppleHDA and AudioAUUC)
Repair permissions
Re-seat the speakers in the device itself
Reset coreaudio
Resetting SMC, PRAM, and NVRAM
Clear and re-build kernal cache
Cleaned the headphone jack
Plugged in an audio interface
Reloaded from Time Machine Backup
etc...
I've literally tried almost everything in the book. The only other thing i can think of is installing a copy of Mavericks when it comes out (In October i believe). There is no boot up chime, and after running the OS in verbose mode, i can see that AudioAUUC.kext is not being loaded. Built in audio does not appear is system profiler. What can i do to fix this problem? Could it really be a hardware issue? If so, what can i do to fix it?

Test after each step.
1. Applications > Utilities > Audio MIDI Setup
    Audio Devices window
    Side Bar
    Click the Built-in Output.
    Under Mute any of the boxes checked? If so, uncheck it.
    Option click the speaker icon, if present and select Internal Speakers.
2. Plug in the head phone and reset SMC.

How do I discharge (calibrate?) my Macbook Air (Mid 2013) without harming the battery?

I just got the latest MacBook Air this week. And after reading the discussion here https://discussions.apple.com/message/22294118#22294118 I chose not to calibrate it the first time since it shouldn`t be necessary with lithium-based batteries.
The thing that still confuses me about the calibration issue with the Macbook Air (Mid 2013) is the text I`ve underlined below from Apples page and where they are talking about lithium-based batteries:
http://www.apple.com/batteries/notebooks.html
"Standard Maintenance
For proper maintenance of a lithium-based battery, it’s important to keep the electrons in it moving occasionally. Apple does not recommend leaving your portable plugged in all the time. An ideal use would be a commuter who uses her notebook on the train, then plugs it in at the office to charge. This keeps the battery juices flowing. If on the other hand, you use a desktop computer at work, and save a notebook for infrequent travel, Apple recommends charging and discharging its battery at least once per month. Need a reminder? Add an event to your desktop’s iCal. When your battery no longer holds sufficient charge to meet your needs, you may choose to replace it. If your notebook came with a built-in battery, you should have the battery replaced only by an Apple Authorized Service Provider."
So when Apple is talking about discharging, how should I actually discharge it? If discharging a lithium-based battery completely is harmful for the battery life, then what is the ideal way to do this without harming the battery? How should I discharge my battery when the calender says it`s time?

Calibration is not needed for "built-in" -non-removable- battery.
"Portables with built-in batteries
Current Apple portable computer batteries are pre-calibrated and do not require the calibration procedure outlined in this article. These computers use batteries that should be replaced only by an Apple Authorized Service Provider."
MacBook Air
MacBook Air (all models)
http://support.apple.com/kb/HT1490
"If your portable Mac has a built-in battery, you don’t need to calibrate the battery."
http://support.apple.com/kb/PH11078?viewlocale=en_US
Best.

I recently purchased Macbook air mid 2013. Leftside usb port is not working. I think the USB is not going inside completely. What is the solution?

I recently purchased Macbook air mid 2013. Leftside usb port is not working. I think the USB is not going inside completely. What is the solution? someone can help?

Invoke your warranty and take it back.

Hi everyone! On my MacBook Air Mid 2009 13" hinges are broken, and i don't have warinty on it anymore.!

Hi everyone! On my MacBook Air Mid 2009 13" hinges are broken, and i don't have warinty on it anymore.!
What should I do?
Thanks!

Still take it to an Apple store genius bar so you can get feedback on what it will cost for repair.
You can also see if you can find an Apple Authorized Service Provider and get a price from them, their work is accepted by Apple.
You can check iFixit.com and see if they have the hinge and price so you have another price for comparison.

MacBook Air (Mid 2013) Windows 8 via Bootcamp

Hey guys,
Just wanted to know if there was anybody who was able to install Windows 8 (or even Windows 7) on their new MacBook Air.
I heard from somebody that installing Windows via bootcamp was different for this model.
First of all,he said that you are unable to install Windows 7/8 with a CD--although it is possible, he said that you will incur with some prolems during installing, he said the trackpad and keyboard will be not functioning.
Anyways, there were many other problems he told me...
Anybody installed it? Were there any problems?

Well you must actually say what you mean. DVD or 8GB flash drive. Whether you have a USB-DVD Apple SuperDrive or something else.
BCA should walk you through. And, it has instructions! a guide to read and printout.
http://www.apple.com/support/bootcamp
FAQ http://support.apple.com/kb/HT5639
How can I install Windows 8 on an eligible computer?
Use the Boot Camp Assistant. The assistant will partition your internal hard drives and install Windows 8. For more information on Windows 8 installation, see the Boot Camp Installation & Setup Guide.
Can I use an upgrade from Windows 7 to Windows 8?
Yes. Download and install the Boot Camp 5 Support Software before attemping the upgrade by using the Boot Camp Assistant in OS X Mountain Lion v10.8.3. Alternatively, you can manually download the Boot Camp 5 Windows Support Software here.
When I do an upgrade install from Windows 7 to Windows 8, an "Uninstall USB 3.0 eXtensible Host Controller Driver" message appears. What do I do?
Do not click on Uninstall. Click the back button and Cancel the upgrade. Download the Boot Camp 5 Support Software by using the Boot Camp Assistant in OS X Mountain Lion v10.8.3, or click here to download them. Then, try the upgrade again. See this article for more information.
After upgrading from Windows 7 to Windows 8, Thunderbolt devices are (not) being recognized when I connect in. How do I fix this?
Disable the Windows 8 Fast Boot feature to allow Thunderbolt devices to be recognized. See Boot Camp: Thunderbolt devices not recognized after Windows 8 upgrade for instructions.
Is there an OS X version requirement to use the Boot Camp Assistant to download Boot Camp 5 Support Software?
You need OS X Mountain Lion v10.8.3 or later installed to download the Boot Camp 5 Support Software (Windows drivers) using the Boot Camp Assistant. After upgrading, click the Go menu and choose Utilities. Then, open Boot Camp Assistant and follow the onscreen instructions. You can download the Boot Camp Installation & Setup Guide.
Is there a download of the Boot Camp 5 Support Software if I'm not using OS X Mountain Lion v10.8.3?
Yes, you can download the Boot Camp 5 Support Software here.
http://support.apple.com/kb/DL1638
How do I use the Boot Camp 5 Support Software I downloaded from the web page?
The download file is a .zip file. Double click it to uncompress it.
Double-click the Boot Camp disk image.
Copy the Boot Camp and "$WinPEDriver$" folders to the root level of a USB flash drive or hard drive that is formatted with the FAT file system (see question below for steps on how to format).
Install Windows, leaving the flash or hard drive attached to the USB port of your Mac.
Installation of the drivers can take a few minutes. Don't interrupt the installation process. A completion dialog box will appear when everything is installed. Click Finish when the dialog appears.
When your system restarts your Windows 8 installation is done.
Note: If the flash drive or hard drive was not attached when you installed Windows and was inserted after restarting into Windows 8, double-click the Boot Camp folder, then locate and double click the "setup.exe" file to start the installation of the Boot Camp 5 Support Software. How do I format USB media to the FAT file system?
Use Disk Utility to format a disk to use with a Windows computer. Here's how:
Important: Formatting a disk erases all the files on it. Copy any files you want to save to another disk before formatting the disk.
Open Disk Utility.
Select the disk you want to format for use with Windows computers.
Click Erase, and choose one of the following from the Format pop-up menu:
If the size of the disk is 32 GB or less, choose MS-DOS (FAT).
If the size of the disk is over 32 GB, choose ExFAT.
Type a name for the disk. The maximum length is 11 characters.
Click the Erase button and then click Erase again.
Which versions of Windows are supported with Boot Camp 5?
64-bit versions of Windows 8 and Windows 7 are supported using the Boot Camp 5 Support Software. If you need to use a 32-bit version, you need to use Boot Camp 4 Support Software, and you must use Windows 7. 32-bit versions of Windows 8 are not supported via Boot Camp. For a complete list of Windows OS support, click here.
Model-specific Questions
I receive a "Free up space on Drive C" message when I try to do an upgrade install from Windows 7 to Windows 8 on my MacBook Air (11-inch, Mid 2012). Why am I seeing this?
There is not enough free space available to do an upgrade install with the 64 GB SSD configuration. Delete the Boot Camp partition and do a full install instead. See this article for more information.
I see a black screen or distortion when I install Windows 8 on a MacBook Pro (Retina, 13-inch, Late 2012). How do I fix this?
The Windows 8 installer does not contain the correct graphics driver for your computer. You'll need to attach the USB media that contains the Boot Camp drivers during installation to address this issue. See this article for more information.
The volume controls keys (F1 and F2) won't work on my iMac (Mid 2011). How do I control the volume?
Use the Settings Charm to control screen brightness. See this article.
My MacBook Air (Mid 2012) will not start Windows 8, or displays VGA graphics when it stats up. How can I fix this?
Your MacBook Air (Mid 2012) needs an EFI Firmware update to address this issue. Download and install the MacBook Air EFI Firmware Update 2.6.
I see a "Windows 8 is not supported on this Mac" message on my Mac. Can my Mac run Windows 8?
For a complete list of Mac computers and the Windows operating systems they support, click here.

MacBook Air mid 2013 built-in keyboard trackpad

I need help! Upon a fresh install of osx 10.8.5 on my MBA mid 2013 my built-in keyboard and trackpad do not work. If I boot into recovery they work! But once I boot to my desktop at the login screen I can't control anything. I've tried repairing permissions several times, also a clean install and still nothing. For awhile the backlight was working but now that is off. If Ieave the lid open and put the computer to sleep I can press the space bar and the screen will wake up. So I'm not sure what's going on here. I'm thinking it might be a "kext" issue and when I look into the console app there is a repeated error "kernal: Error: AppleHSSPIControler: :_handelEnumerationFailureGated Giving up on device"

That's a much more useful description of your issue.
Check you last complete backup and manually update any valuable PITA to recreate replace data folders, files only (FWIW you should have TWO backups of any VIP data - apps can always be reinstalled.)
Best troubleshoot / solutions to try source I found was this. Unfortunately you have another one of those "problems" with no surefire cause or fix. Again - you may not have to complete all steps... start at the beginning and go slowly. Try a couple things and wait and see if the error reoccurs.
Second discussion - if the steps from the link can't solve the issue you may have to start over with configuration of TC.
Added second link and advice.
Message was edited by: themachead

Hi everybody, my Macbook air mid 2012 MD 231 suddenly shut down then i can not turn it on. I heard a sound like a fuse is blown or something like that. Did any system break or burnt? I did not charge at that moment. Plz help

my Macbook air mid 2012 suddenly turn off after a strange sound (like the sound òf a fuse has blown or something like that) and I also feel a burnt smell too while i am watching a film on the internet and did not charge the laptop at this moment. The sound was from the left of it, and now just a dark screen , even I tried charging it (still has green light at the charge tool). I bought it on 13st April 2013, not often use.
I love apple and i am so sad that a new product which i seldom use could be break so easily and outstanding. It's so late in my country now but i am too disappoint about the trouble so i am writing with hope of supporting from Apple and the community.
Please help , thank bro

You will have to take it to an Apple Store for repair.

Macbook Air Mid 2013 - Keys freeze up now and then

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