Is my lack of iPhone signal a hardware or service problem?

When I visit Crystal Mountain, WA, my iPhone 4S receives no signal, yet my friend with the same model phone and the same service provider (Sprint) does receive a signal. Furthermore, last year I was able to pick up a signal with the same phone/provider. Is anyone able to shed any light on the possible cause of this? Thanks!

Did you also try to reset the phone by holding the sleep and home button for about 10sec, until the Apple logo comes back again? You will not lose data by resetting, but it can cure some glitches after installing new software or apps.
If this does not work, set it up as new device, explained here:
How to back up your data and set up as a new device
http://support.apple.com/kb/HT4137

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IPhone 3GS 5.0.1 Service Problem

I have an iPhone 3GS its on 5.0.1
It keeps loosing signal anywhere I'm at, it goes from full bar AT&T to searching... and keeps repeating over and over again.
I've taken it to the apple store like 9 time I've gotten my iPhone replaced 6 time and it keeps doing it they told me to change the sim card so i did that too 4 times, then AT&T says its a device issue and they keeps going back and forth i really dont know what to do anymore! Please help!
It works for a couple of hours after I restore it but i have to be doing that contantly.

If tied my sim on other phones and the service is great!

I bought my iPhone 4 open line in Vancouver, Canada last week for use here in my home base in Bangkok, Thailand. But when I tried using my Thai sim, I get a very weak signal, if not a weak signal, then a no service status. What do I do?

I bought my iPhone 4 open line in Vancouver, Canada last week for use here in my home base in Bangkok, Thailand. But when I tried using my Thai sim, I get a very weak signal, if not a weak signal, then a no service status. I also have very weak wifi reception. What do I do?
I already tried the following:
a. Turned the phone off and then on.
b. Checked all wifi connections – no problem given that all our laptops and desktops can connect seamlessly.
c. I tried restoring the phone to original factory settings via itunes
d. Tried resetting the phone.
e. Tried different microsims from all networks
f. However, all methods failed given that the network reception is very weak and often reflects – “no service”. And with regards to the wifi reception It has difficulty in reading even the signal right in front of the wifi router.
I went to two Apple resellers here in Bangkok and requested that they please look at my Iphone and have it serviced. I was frustrated when they said that given that I bought my phone in Canada, they are not able to support me and should instead try to contact the Apple store in Canada.
I went to apple.ca website and went to the expresslane support and I was said to register and callback. Tried calling the 1800 number but given that I was in Thailand I had difficulty getting a connection.

1st sentence, 4th page of the iPhone warranty found here:
Apple may restrict service to the country where Apple or its
Authorized Distributors originally sold the hardware product.
From the Repair terms and conditions found here:
9. Availability of Service.
Apple may restrict service to the country where Apple or its authorized distributors originally sold the
hardware product, and to the countries listed in the table below. A list of authorized distributors is
available online at:
http://images.apple.com/legal/warranty/docs/iPhoneAuthorizedDistributors.pdf
If you do not believe that, then see these search results which confirm my statement.

Why Is My iPhone 4 Struggling To Pick Up a Wifi Signal My Macbook Has No Problem Receiving?

I have both an iPhone 4 and a late 2009 Macbook. I work at an office just a few yards from the local hospital. The hospital has a public wifi that is definitely receivable, although weak in spots. But what I have noticed is that my iPhone 4 has a real hard time finding the signal and keeping it. I usually only get 2 bars max, out of the three on the signal graphic on the screen of the iPhone. It drops out often on the iPhone. However, when I connect with my Macbook, the connection is solid and it displays that I am getting a full signal. The signal doesn't drop on the Macbook. My question is why is there a difference between the iPhone and Macbook in picking up a wifi signal? Do iPhones not have as much sensitivity to pick up a weaker signal? Is there something I can do to the iPhone to enhance its reception?

They better huh?
I'm sure Apple is shaking in their boots.
No such problem with my iPhone which I connect with a number of wi-fi networks.
If the same problem with any other wi-fi network besides your own and no change after resetting network settings and/or after restoring the iPhone as a new iPhone or not from the backup, the iPhone has a hardware problem.
If the problem is with your wi-fi network only - no problem with any other wi-fi network besides your own, the problem is not with the iPhone.

HT1976 Iphone 4s signal dropping to no service

My iphone 4s giving me no service
I have to restart phone every 5 min
When I restart i get full signal and after few second It start dropping and stop on 2 bar and after few more seconds it give no service.
What cloud be the issue ?
Its hardware (if its hardware what component I need to change or repair.
If its software then what is the solution.
I am in Pakistan and here we have no apple store or genius bar facilities.
Help me to solve the issue otherwise iphone is non useable at the moment.
I need quick reply from Apple team.

If you have tried a restore as new expecially in DFU mode you have done all the software troubleshooting neccesary this narrows it down into a hardware issue.
Apple does not recommend doing any repairs on your own because it will void your warranty however
You would be looking into repairing your Signal Antenna
Before doing this repair i would suggest contacting your carrier and having them reset your cellular network just in case
Good luck
Let me know how it goes

IPhone 4 stuck in recovery mode - Hardware or software problem?

Hi
So I just fixed my iPhone 4 screen, and it worked fine, except my vibrator didn't work. Then I opened my iPhone up again and took the vibrator out, and put it in again. Then everything worked fine... Until I updated to IOS 7 (I restored it to factory settings) . What happened was, that my iPhone turned on, and I could use it for about 2 minutes, and then it showed a white and black screen for a sec, and then it turned off. Then it turned itself on again, and after 2 minutes it turned off and so it keept on going. The suddenly it all worked.. Then things started to get really bad. At first it wouldn't charge, then it would only turn on when it was in the charger (I put a new battery in and tried a different charger and it didn't make a difference). Then it was in a boot loot, showing the apple logo over and over again, and I tried to recover it by putting it in recovery mode, and now it is stuck. It will still only turn on when in the charger, and it will only show the "plug it into iTunes" screen. I didn't have any SHSH blops (or whatever they are called). When I plug it into the computer iTunes do recognize it, and it ask me if I want to recover, and I press yes. Then it starts to unpak files, but then error code 21 pops up (I have tried this on two different computers). I have really tried many things to make it work again, but I can't finde anyone who has the exact same problem as me. I have no garranty or anything, it is an old iPhone 4, so I have to fix it myself.
So my question is if it is a hardware, software, firmware problem or whatever it could be?
Thanks in advance

These errors typically occur when security software interferes with the restore and update process. In rare cases, these errors may be a hardware issue. If the errors persist on another computer, the device may need service.
Also, check your hosts file to verify that it's not blocking iTunes from communicating with the update server. See the steps under the heading "Blocked by configuration (Mac OS X / Windows) > Rebuild network information > Mac OS X > The hosts file may also be blocking the iTunes Store." If you have software used to perform unauthorized modifications to the iOS device, uninstall this software prior to editing the hosts file to prevent that software from automatically modifying the hosts file again on restart.

I'm having trouble with my new iPhone.it seems it likes to turn it self off for no reason at all.i would like to know is this a hardware or software problem or just a iPhone problem i don't know.

I'm having trouble with my new iPhone.it seems it likes to turn it self off for no reason at all.i would like to know is this a hardware or software problem or just a iPhone problem i don't know.

basic troubleshooting steps from the User Guide are restart, reset, restore from backup, restore as new.
Have ANY of these been tried?

Can The Apple Authorized Service Providers repair iPhone an ipad hardware directly?

It's not clear if AASP can directly operate on iPhone and ipad hardware or they simply change broken devices with refurbished ones (like Retail stores).
Thank you

And thank you too, bubbaglia.
One small additional note. It is well known that refurbished items are every bit as good as new ones and often carry a full warranty.

Will long recording video time damage the iPhone lens, chip, hardware?

I noticed there are some car video recording apps available now for users to record video, audio, and GPS data into a video clip. The idea is like the video camera hardware but it's now doing so in your iPhone.
Will long time video & audio & GPS recording damage your iPhone chips and hardware? Say if I drive 1 hour to and from work everyday, do you think the extensive usage will damage the iPhone?

Will long time video & audio & GPS recording damage your iPhone chips and hardware? Say if I drive 1 hour to and from work everyday, do you think the extensive usage will damage the iPhone?
IMO. no.

Iphone 4s shows hardware model iPhone 4,1

in log file, iphone 4s shows hardware model iPhone 4,1 what does it mean? Pl. clarify my doubt. Thanx

Just means that you have a 4S.

What Major/Career to design the iphone/ipod/ipad hardware and iOS design?

I want to go to college to get a bachelor degree to design iphone/ipod/ipad hardware and iOS designing please tell me.

If you are wanting to create internal hardware you need to pursue an Electrical Engineering degree. If you want to write software pursued a computer science degree.
You probably would not be able work on both hardware and software on the iPhone while working at Apple.

Is black screen for iPhone hardware or software problem

Is black screen for iPhone hardware or software problem.

Don't know until you troubleshoot. First step is a reset:
hold down the home button along with the sleep/wake button until the screen goes black and you see the Apple, then let go. (No data loss)

My iphone 4s is loosing the cellular signal and showing NO SERVICE in good segnals area most of the times

my iphone 4s is loosing the cellular signal and showing NO SERVICE in good segnals area most of the times

Go in Apple Store! If your warranty is valid, you must pretend a regenerated iPhone ( only mother board is "old", all the rest of components are new!)

I have new iPhone 6 all working great but problem is no any bar on signal can help me

Hi ggot my iPhone 6 all working great but problem is no any bar on signal 02 try new sim card same problem any can help me

Greetings andyirons,
Welcome to the Apple Support Communities!
I understand that you are receiving low signal strength on your iPhone. In this situation, even though the attached article was written for situations with no signal, I would still suggest working through these same steps to troubleshoot.
If you see No Service in the status bar of your iPhone or iPad - Apple Support
Cheers,
Joe

HT1414 my iphone 4s the wifi grayed out!! is it hardware or software problem?

my iphone 4s the wifi grayed out!! is it hardware or software problem?

Hello EAB007,
Thanks for using Apple Support Communities.
For more information on this, take a look at:
iOS: Wi-Fi settings grayed out or dim
http://support.apple.com/kb/ts1559
Best of luck,
Mario

Is my lack of iPhone signal a hardware or service problem?

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