IMac FireWire Port Not Working

Hi guys, my system is a 24" 2.8GHz Intel-based iMac. Whenever I plug a device into the FireWire 400 port it powers the device but the iMac doesn't see the device - it doesn't show up in Disk Utility. There are no problems with the devices as they work perfectly with my other Macs. Any idea on whether I can fix this without taking it to an Apple Store? It seems like a Firmware issue.

Hi DrRGrant
First reset the SMC > http://support.apple.com/kb/HT3964
+1. Shut down the computer.+
+2. Unplug the computer's power cord.+
+3. Press and hold the power button for 5 seconds.+
+4. Release the power button.+
+5. Attach the computers power cable.+
+6. Press the power button to turn on the computer.+
Then if that doesn't work, give this a go: > http://support.apple.com/kb/HT1317
+1. Shut down the computer.+
+2. Disconnect all devices and all other cables, except the keyboard and mouse cable(s).+
+3. Disconnect the computer from the power outlet and wait for 3 to 5 minutes.+
+4. Plug the computer back in and turn it on.+
+5. Reconnect the device(s) (one at a time if there is more than one) and test. Test with each port if you have more than one.+
Dennis

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Verify that the display’s USB and FireWire cables are firmly plugged in to the
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This worked from Smokerz in the Power Mac G4 forum:
1. Shut-down your Mac, and unplug the power cord
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New 2011 MacBook Pro Firewire Port Not Working with Focurite Saffire 24 DSP

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Firewire ports not working.

Hello I am new to Apple, i recently purchased an Imac ( 10.6.4 ) and a firewire solo audio interface, the interface isn't being recognised and i've tried all the recommended solutions but none have worked.
I recently found out about "hot plugging" and I think its possible i may have been too eager and plugged my interface in before the computer had completely shut down. The interface receives power from the mac still but it isn't recognised.
So far i've tried, installing newest sofware, reinstalling, verifying disk/disk permissions. Turning of the mac, unplugging for 10 minutes etc.
If anyone has suggestions as to ways of knowing if the port is actually damaged and if so if apple can replace my mac etc. (I'm within the 90 days purchase).
Any help or information would be much appreciated

Ugh... I am having exactly the same symptom on what is probably exactly the same machine.
The laptop recognizes the drive and deals with it.
The imac did so at first, but a couple of days ago it began to have trouble mounting it.
"About This Mac" sees it (sometimes even identifies its Oxford chipset) but no more progress. Disk Utility sees it sometimes, but no success mounting it either.
And just for kicks (you might want to try this too) I tried to boot the imac in firewire mode with the live laptop and although the system hard drive showed up in the laptop's Finder, Disk Utility could not begin to verify the drive before things got ugly. After that attempt the drive would not dismount properly and I had to--gasp--turn it off without doing so. Fortunately the imac booted up without a hitch.
Firewire, firewire...
mac Mac OS X (10.4.5)

Firewire Port not working, URGENT help please¡¡¡

Hello People, i´ve just got a new Mac Mini last week, and i´ve been trying to get my Alesis MasterControl audio interface, and is just a complete mess.
This happened right after i´ve upgraded to 10.8.3 so i don´t know, the weird thing is that if i connect my old iBook to the Mac Mini the FW800 port works, but everytime i connect the audio interface, nothing happens, also the drivers from alesis, are up to date. i first thought about the port of the Mixer went bad, but it has 2 and non of them works, also thought about the cable but the same cable works when i connect my iBook, and the mixer is not bus powered, it has it´s own power supply.
Needless to say i´ve already done the usual reset PRAM, turn of the Mac unplugged for 30 hour to reset the bus. etc.
This is the usual firewire only system log that i get:
31/03/13 08:01:20.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in now active, GUID 003ee1fffe88dc6a; max speed s800.
31/03/13 08:01:30.000 kernel[0]: Alesis Firewire - 3.5.6.11675 (x86_64) Aug 16 2011 01:20:23
31/03/13 11:33:23.529 system_profiler[528]: SPFWR ERROR: FireWire bus may be unstable. Other FireWire devices may be present.
31/03/13 11:35:43.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: no valid selfIDs for more than 3 minutes after bus reset.
31/03/13 11:38:55.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: no valid selfIDs for more than 3 minutes after bus reset.
31/03/13 11:42:08.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: no valid selfIDs for more than 3 minutes after bus reset.
31/03/13 11:44:39.124 CleanMyMacHelperTool[583]: Mounted devices (
    "/Volumes/AlesisFirewire-3.5.3.8671"
31/03/13 11:44:39.146 CleanMyMacHelperTool[583]: Wont clean /Volumes/AlesisFirewire-3.5.3.8671 because disk image
31/03/13 11:44:39.148 CleanMyMacHelperTool[583]: Mounted devices (
    "/Volumes/AlesisFirewire-3.5.3.8671"
31/03/13 11:44:39.149 CleanMyMacHelperTool[583]: Wont clean /Volumes/AlesisFirewire-3.5.3.8671 because disk image
31/03/13 11:44:52.727 coreservicesd[62]: Application App:"AlesisFirewireUninstaller" [ 0x0/0x7f07f] @ 0x0x7fb5c8c30050 tried to be brought forward, but isn't in fPermittedFrontASNs ( ( ASN:0x0-0x80080:) ), so denying.
31/03/13 11:44:52.727 WindowServer[85]: [cps/setfront] Failed setting the front application to AlesisFirewireUninstaller, psn 0x0-0x7f07f, securitySessionID=0x186a5, err=-13066
31/03/13 11:47:28.533 CleanMyMacHelperTool[656]: Mounted devices (
    "/Volumes/AlesisFirewire-3.5.3.8671",
    "/Volumes/AlesisFirewire-3.5.6.11675"
31/03/13 11:47:28.544 CleanMyMacHelperTool[656]: Mounted devices (
    "/Volumes/AlesisFirewire-3.5.3.8671",
    "/Volumes/AlesisFirewire-3.5.6.11675"
31/03/13 11:49:26.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: no valid selfIDs for more than 3 minutes after bus reset.
31/03/13 11:52:39.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: no valid selfIDs for more than 3 minutes after bus reset.
31/03/13 11:57:22.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in now active, GUID 003ee1fffe88dc6a; max speed s800.
31/03/13 11:57:34.000 kernel[0]: Alesis Firewire - 3.5.3.8671 preliminary - x86_64 CJ - May 3 2010 02:43:28
31/03/13 11:58:36.982 com.apple.launchd.peruser.501[155]: ([0x0-0x1d01d].tc.tctechnologies.AlesisFirewire.controlpanel[238]) Job appears to have crashed: Abort trap: 6
31/03/13 11:58:37.252 ReportCrash[242]: Saved crash report for AlesisFirewire Control Panel[238] version 3.5.3 (3.5.3.8671) to /Users/m1kygarcia/Library/Logs/DiagnosticReports/AlesisFirewire Control Panel_2013-03-31-115837_Mac-mini-de-Miguel.crash
31/03/13 11:58:39.831 system_profiler[267]: SPFWR ERROR: FireWire bus may be unstable. Other FireWire devices may be present.
31/03/13 11:58:50.676 com.apple.launchd.peruser.501[155]: ([0x0-0x23023].tc.tctechnologies.AlesisFirewire.controlpanel[274]) Job appears to have crashed: Abort trap: 6
31/03/13 11:58:50.837 ReportCrash[242]: Saved crash report for AlesisFirewire Control Panel[274] version 3.5.3 (3.5.3.8671) to /Users/m1kygarcia/Library/Logs/DiagnosticReports/AlesisFirewire Control Panel_2013-03-31-115850_Mac-mini-de-Miguel.crash
31/03/13 11:58:53.638 system_profiler[277]: SPFWR ERROR: FireWire bus may be unstable. Other FireWire devices may be present.
31/03/13 11:59:09.747 CleanMyMacHelperTool[300]: Mounted devices (
    "/Volumes/AlesisFirewire-3.5.6.11675"
31/03/13 11:59:09.905 CleanMyMacHelperTool[300]: Wont clean /Volumes/AlesisFirewire-3.5.6.11675 because disk image
31/03/13 11:59:09.906 CleanMyMacHelperTool[300]: Mounted devices (
    "/Volumes/AlesisFirewire-3.5.6.11675"
31/03/13 11:59:09.907 CleanMyMacHelperTool[300]: Wont clean /Volumes/AlesisFirewire-3.5.6.11675 because disk image
31/03/13 12:00:47.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in now active, GUID 003ee1fffe88dc6a; max speed s800.
31/03/13 12:00:59.000 kernel[0]: Alesis Firewire - 3.5.6.11675 (x86_64) Aug 16 2011 01:20:23
31/03/13 12:01:56.720 system_profiler[269]: SPFWR ERROR: FireWire bus may be unstable. Other FireWire devices may be present.
31/03/13 12:05:40.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: no valid selfIDs for more than 3 minutes after bus reset.
31/03/13 12:08:52.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: no valid selfIDs for more than 3 minutes after bus reset.
31/03/13 12:12:42.277 AlesisFirewire Control Panel[245]: -_continuousScroll is deprecated for NSScrollWheel. Please use -hasPreciseScrollingDeltas.
31/03/13 12:12:42.277 AlesisFirewire Control Panel[245]: -deviceDeltaX is deprecated for NSScrollWheel. Please use -scrollingDeltaX.
31/03/13 12:12:42.278 AlesisFirewire Control Panel[245]: -deviceDeltaY is deprecated for NSScrollWheel. Please use -scrollingDeltaY.
31/03/13 12:13:53.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: no valid selfIDs for more than 3 minutes after bus reset.
31/03/13 12:25:29.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in now active, GUID 003ee1fffe88dc6a; max speed s800.
31/03/13 12:25:38.000 kernel[0]: Alesis Firewire - 3.5.6.11675 (x86_64) Aug 16 2011 01:20:23
31/03/13 12:28:30.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: no valid selfIDs for more than 3 minutes after bus reset.
31/03/13 12:28:33.906 system_profiler[273]: SPFWR ERROR: FireWire bus may be unstable. Other FireWire devices may be present.
31/03/13 12:31:41.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: no valid selfIDs for more than 3 minutes after bus reset.
31/03/13 12:35:16.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in now active, GUID 003ee1fffe88dc6a; max speed s800.
31/03/13 12:35:26.000 kernel[0]: Alesis Firewire - 3.5.6.11675 (x86_64) Aug 16 2011 01:20:23
31/03/13 12:37:53.513 system_profiler[266]: SPFWR ERROR: FireWire bus may be unstable. Other FireWire devices may be present.
31/03/13 12:39:36.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in now active, GUID 003ee1fffe88dc6a; max speed s800.
31/03/13 12:39:49.000 kernel[0]: Alesis Firewire - 3.5.6.11675 (x86_64) Aug 16 2011 01:20:23
31/03/13 12:42:55.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: 53 bus resets in last 3 minutes.
31/03/13 12:46:50.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: 68 bus resets in last 3 minutes.
31/03/13 13:01:30.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in now active, GUID 003ee1fffe88dc6a; max speed s800.
31/03/13 13:01:41.000 kernel[0]: Alesis Firewire - 3.5.6.11675 (x86_64) Aug 16 2011 01:20:23
31/03/13 13:05:27.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: 79 bus resets in last 3 minutes.
31/03/13 13:06:31.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: no valid selfIDs for more than 3 minutes after bus reset.
31/03/13 13:09:43.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: no valid selfIDs for more than 3 minutes after bus reset.
31/03/13 13:13:31.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in now active, GUID 003ee1fffe88dc6a; max speed s800.
31/03/13 13:13:45.006 com.apple.kextd[11]: Can't load /System/Library/Extensions/IOFireWireIP.kext - ineligible during safe boot.
31/03/13 13:13:45.008 com.apple.kextd[11]: Load com.apple.iokit.IOFireWireIP failed; removing personalities from kernel.
31/03/13 13:13:54.818 com.apple.kextd[11]: Can't load /System/Library/Extensions/AlesisFirewire.kext - ineligible during safe boot.
31/03/13 13:13:54.823 com.apple.kextd[11]: Load tc.tctechnologies.driver.AlesisFirewire failed; removing personalities from kernel.
31/03/13 13:13:56.372 com.apple.kextd[11]: Can't load /System/Library/Extensions/AlesisFirewire.kext - ineligible during safe boot.
31/03/13 13:13:56.375 com.apple.kextd[11]: Load tc.tctechnologies.driver.AlesisFirewire failed; removing personalities from kernel.
31/03/13 13:15:40.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: no valid selfIDs for more than 3 minutes after bus reset.
31/03/13 13:18:46.763 com.apple.kextd[11]: Can't load /System/Library/Extensions/IOFireWireIP.kext - ineligible during safe boot.
31/03/13 13:18:46.768 com.apple.kextd[11]: Load com.apple.iokit.IOFireWireIP failed; removing personalities from kernel.
31/03/13 13:18:46.797 com.apple.kextd[11]: Can't load /System/Library/Extensions/AlesisFirewire.kext - ineligible during safe boot.
31/03/13 13:18:46.800 com.apple.kextd[11]: Load tc.tctechnologies.driver.AlesisFirewire failed; removing personalities from kernel.
31/03/13 13:18:50.775 system_profiler[221]: SPFWR ERROR: FireWire bus may be unstable. Other FireWire devices may be present.
31/03/13 13:18:52.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: no valid selfIDs for more than 3 minutes after bus reset.
31/03/13 13:21:03.488 system_profiler[235]: SPFWR ERROR: FireWire bus may be unstable. Other FireWire devices may be present.
31/03/13 13:22:37.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: no valid selfIDs for more than 3 minutes after bus reset.
31/03/13 13:24:07.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in now active, GUID 003ee1fffe88dc6a; max speed s800.
31/03/13 13:24:19.000 kernel[0]: Alesis Firewire - 3.5.6.11675 (x86_64) Aug 16 2011 01:20:23
31/03/13 13:31:00.926 system_profiler[316]: SPFWR ERROR: FireWire bus may be unstable. Other FireWire devices may be present.
31/03/13 13:33:03.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: 134 bus resets in last 3 minutes.
31/03/13 13:35:11.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: no valid selfIDs for more than 3 minutes after bus reset.
31/03/13 13:38:24.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: no valid selfIDs for more than 3 minutes after bus reset.
31/03/13 13:41:36.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: no valid selfIDs for more than 3 minutes after bus reset.
31/03/13 13:44:48.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: no valid selfIDs for more than 3 minutes after bus reset.
31/03/13 13:58:13.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: no valid selfIDs for more than 3 minutes after bus reset.
31/03/13 14:01:25.000 kernel[0]: FireWire (OHCI) TI ID 823f built-in: no valid selfIDs for more than 3 minutes after bus reset.
Can somebody help, please i´d gladly appreciate it.

I have this
System Profiler[170]
SPFWR ERROR: FireWire bus may be unstable. Other FireWire devices may be present.
& this
kernel FireWire (OHCI) Lucent ID 5901 built-in: no valid selfIDs for more than 3 minutes after bus reset.
Pls, help!!

New 2011 MacBook Pro Firewire Port Not Working with Firewire Solo

Kind of an odd problem:
I'm basically trying to go from my MBP through firewire to a firewire solo audio interface and then from there out to two speakers. (MBP>Firewire Solo>Speakers) The light on the firewire solo turns on when I connect the firewire cable, but when i try to play sound nothing comes out. Yes, I've checked the volume. Yes, I've checked system preferences. It's not the cable, the interface, or the speakers as I've check all these with my old computer and they work fine. Also, I've plugged in the firewire solo to check if it was a power problem -- still no sound. What's going on!?

Could it just be a hardware problem?

IMac firewire port is not working

iMac firewire port is not working
Hi everybody, Happy New Year.
I am a 72 years old semi-newbie in video editing, because Iedit only 1 or may be 2 movies a year since 2007 and I have only very little computer knowledge.
I received a new 27” iMac as a birthday gift 14 months ago. About 10 months ago, with help, I successfully use the Migration Assistant to transfer some datas from my old power G4 to the iMac including two Final Cut Express projects. I had one project successfully done; burned to DVD and I save it with Print To Video. Last week, I have my second project done, I burned the sequences into DVD but unable to do a Print To Videodue to the iMac is not communicating with my Sony camcorders DCR VX1000, this is the same camcorder I used on the last job which was working a couple of months ago.As a result, I try to switch the Easy Setup with different Format and different Use; I refresh the Canvas window; I did a Mix down; move the Screen Saver to NEVER as well as the Energy Saver set to NEVER SLEEP. I also trashed the preferences (plist) folders; run the Utility repair, I replaced the firewire cable (4 pines – 9 pines 800), but nothing work. Up to this point, I think that there is no signal from the firewire port to the camcorder because I understand when the sequences is ready, the firewire is connected between the computer and the recording camcorder, the Print to Video is activated, then the word DV- IN should be seen on the recording deck screen. This time, I don’tread such words on the recording screen. Therefore, I think there’s no out going signal from the iMac to the recording camcorder and the iMac is not receiving signal from the recording camcorder. At this point, I try to connect my iMac to the power G4 to see if I can do some data transfer. Follow the procedures, I hook up the data transfer cable between the G4 and the iMac, I can the fireswire icon moving on the G4 screen but no indication on the iMac screen (there should be some indications in the source bar), this shows me the iMac did not recognize the G4 which worked on previous data transfer. It looks to me the firewire port on my iMac is dead. What has gone wrong? Could I accidentally disabled the firewire port by some magic keystroke? (i.e. accidentally fat finger some thing to make it stop working? Oh, by the way, during the playing around, went to the Final Cut tool bar, I click the View >Video Out > Digital Cinema Desktop Preview – Main, the result was a black screen and the esc key was my rescuer - LUCKY LUCKY! Are there any other trouble-shooting techniques to apply before bringing to shop? Please help!
Sorry for such a long statement, forgive me for unable to make it shorter. Thank you for your patience. Thanks to all the folks in this board for being so helpful.
p.s.

Not sounding good.
If the system Profiler does not see it then there is a basic communication problem between camera and the Mac.
I'm thinking the Firewire port is the culprit as some 800 ports were faulty.
I'd suggest taking the Mac, cable and camera to your nearest Authorized Apple Service Centre and get them to diagnose the issue. eg. let them try to connect the two devices.
Right (control)click the Sequence icon in the Browser and select Item Properties, do the same for a clip.
You can also post screen shots for the Properties.
Al

Firewire port previously working now not recognized

Hello,
I understand this particular issue has been discussed at length on this forum and in other places but none of the solutions have yielded any success for me and I see this is often the case for others. So, I'm posting the question again in hopes that there is an Apple guru out there who has figured this one out. (All relevant specs below.)
Problem: Firewire port was working fine for downloading video from a Panasonic PV-GS320 into iMovie 8.0 on an iMac 10.5.8. Then, suddenly the firewire port was no longer recognized:
FireWire Bus:
Warning:          Unable to list FireWire devices.
Maximum Speed:          Up to 800 Mb/sec
The problem cannot be with the camera or cable as I can swap them over to an iBook 10.4 and the camera and firewire download perfectly there.
I have run AHT. Test results show no hardware problems.
I've tried all of these suggestions:
http://docs.info.apple.com/article.html?artnum=88338
http://macperformanceguide.com/blog/2011/20110808_0_Firewire800--howto.html
and quite a number of other solutions that involve rebooting SMC and PRAM but no dice.
I'm guessing this might be some kind of driver or software issue. There's got to be a simple solution to kick this thing in the butt and get it working again. I'd prefer not to do an OS re-install if I can avoid it.
Thanks much! Below are the specs:
iMac: 10.5.8
2.4 GHz Intel Core 2 Duo
4 GB 667 MHz DDR2 SDRAM
Firewire: 800 Mb/sec

Hi Tom,
I've had an opportunity to try all of the options listed on those links. I did omit one however, the Combo Update for 10.5.8. I hesitate to pursue this one b/c from what I can understand this 1GB's worth of update is basically a reinstall of the OS. I'd prefer not to take such a drastic action b/c I'm in the middle of editing a documentary and I don't want any other hardware or software to malfunction or alter behavior while I'm in mid-stream.
Let me know if I'm mistaken about this. As it stands the Combo Update is my last option, otherwise I'm just going to move forward with a dead port.
Just as a sidenote: the behavior of the firewire recognition has changed. Now, the system does not recognize the firewire plugged in at all. I used to get an error message, now nothing.
Thanks Tom and BDAqua.
If anyone else is reading this post I'd like to hear from someone who has experienced the same problem and found a/the solution.
Best Regards,
-J Mann

Ports not working on TBD connected with iMac

I have a 27 inch Thunderbolt display connected with a 27 inch iMac. All the port (USB, Firewire) were working on the TBD. Then a software update of TBD came and since then none of the ports (USB, Firewire) are not working anymore on the TBD.
Before I could adjust brightness on the TBD, now I can't even do that.
Anyone facing the same problem

Hi Danny
Using what adapter(s) and cable(s).....?
Check the TVs owners manual or LGs support site, there maybe a way to reset the HDMI ports if they were tripped or overloaded by a bad cable or connection.
Dennis

Firewire port not suplying energy wen runing only with battery

Hi all,
since today I v noticed that if my MBP is not connected to the power adaptor
will not suply energy any more to the Firewire 400 port (the only one I have ).
This is a problem because I am often working with ext drive on the run...
any idea on why this is happening ?
I v just got back my laptop back from the Apple store were they have replaced the
optical drive and they v told me that firewire port was working fine.( I was suspecting something cauz I v had several hardrive unmounting without any reason).
Now that my laptop came back there is this issue...
best
Shiama

Your computer should provide power to the Firewire port when running on battery as long as the computer is not shut down or sleeping, shiama. If it is sleeping or shut down then it will only provide power when the power adaptor is plugged in.
You could try resetting the SMC and PRAM . Perhaps try another FW cable to make sure that this is not the cause of your problems, though I presume, from what you say, that power is supplied to the FW drive normally if the power adaptor is plugged in.
Some supposedly bus powered FW drives may need more current than the battery alone can support though. What brand and model is the drive? Has it worked off battery alone before? Are any other devices attached, and were you running software that places a heavy demand on the CPU or Graphics processor when the external drive was in use?
Cheers
Rod

I have an iMac that is not working. It won't turn on or respond to any keyboard strokes. I have a cd stuck in the computer. How do I get it out?

I have an iMac that is not working. The screen stays black when I turn it on and it won't respond to any keyboard strokes. I have a cd stuck in the computer. How do I get it out?

Hello
Try this
plug a WIERED mouse , start up your imac , hold on mouse buttons for 30-40 second at least by chance cd could be ejected
HTH
Pierre

What is wrong with my 30" Cinema Display? The USB and FireWire ports still work, but the screen is pitch black. When you plug it into the computer, it detects that it's a Cinema Display.

When you plug it into the computer, it detects that it's a Cinema HD but the screen is pitch black.
For some reason, the USB and FireWire ports still work.

If you shine a really bright light directly into the screen can you then see a faint image on the screen? If so, that would indicate the backlight has died (hardware failure) and the unit needs repairing.

Can't sync ical on my iphone and imac. email and note work but not ical. can anyone help.

can't sync ical on my iphone and imac. email and note work but not ical. can anyone help.
thanks
bmoreimac

So how can i make it work that way, i asked one of my friends, and she says it works like that...when she delete the email on her iphone it is deleted on the mac too, what do i do to change this?....my mail it's hotmail, i don't know if its relevant

IMac FireWire Port Not Working

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