iOS4 update - now iPhone now reboots during phone call

I feel obligated to add my name to the list of customers with this issue.
After upgrading to iOS4 my iPhone 3GS 16 GB crashes (instant reboot, only showing apple logo until it starts up again) pretty much every time im in a call. Normally this happens somewhere around 3.5 minutes, but sometimes closer to 10.

I never had this issue prior to upgrading to iOS4.

*Some things worth noticing:*
- I tried having programs running in the background, and no programs at all running in the background. No difference, crashes none the less.
- I got a friend with same phone who has the same issue.
- Prior to upgrading to iOS4, i made a complete "Erase and Reset my phone", to get a clean install.
- I installed iOS4 using recovery mode on the iPhone.

And here comes the annoying part, I tried to replicate the problem by calling my friends iPhone 3GS, putting our phones next to each other on the table (muted both microphones) and then wait for mine (only one running iOS4) to crash. After 20 minutes of the call I gave up as it seemed it wasnt intending to crash.

However, its important to remember that during this "test":
a) I did not have the phone to my ear, meaning less heat and no annoyance of the sensors making the screen go black while in a call

b) I did not hold the phone, they were lying next to each other on a table.

c) Seeing both phones microphones were muted (and nobody talked) the call traffic was very limited (if not non-existent).

d) Everytime the display dimmed I touched it once to see the call duration and status

e) I only did this "test" once, meaning it could just have been a fluke it did not reboot.

f) After this "failure" to replicate the behavior, I kept having crashes while in "real" phone calls.

Hope this helps getting us closer to a solution.

I have an iphone 3gs 32Gb and the same problem you have described is happenning to me. I have also noted that it appears to drain the battery a lot quicker.This problem started to occur after updating to iOS4; is APPLE aware of this? and if so, what steps are they taking ?

I'm having this problem too.

I have a 32gb 3GS which has never missed a beat in one whole year of ownership. Now, having installed iOS4, I often have trouble making calls over 5mins long. The phone just reboots. This can only be down to iOS4 as I have NEVER had any problems up to now. This is not dropped calls or the way I am holding the phone or a dodgy iPhone, this is 100% iOS4.

....and to think, Jobs has the audacity to have a go at Adobe's sloppy programming!

I'm not happy! Apple needs to sort this NOW. People rely on their phones! Surely making a call is the number 1 use for a phone!!!!

Taking the Phone Device in horizontal position a reboot doesn't occur during a call (calling to the IPhone device).

Taking the IPhone Device in vertical position (what is the normal position during a call) the Phone Device reboots after 4 to 6,5 minutes (calling to the IPhone device).

It seems like the issue comes from the Firmware code regarding the vertical/horizontal Sensor can anyone verify this issue isolation?

Hello,

I have a similar Problem with my 3GS. First, the Upgrade results in Error 29. With the DFU-Mode it was succsesfully. If the Phone is lying around, everything seems to be ok. But any kind of usage results in a reboot after 3 to 10 min. Btw. this not a complete reboot, the SIM card ist still unlocked after this happens.

I tryed to reinstall the Phone on several computers, but the result is always the same.

The phone dropped by accident into my aquarium, but after drying it, it seems to be ok with iOS 3. This is about a month ago.

Greetings
Peter / Germany

I've also been getting this problem since upgrading a previously faultless 9-month-old 32GB 3GS to iOS 4.

I've also taken a look at the console log, and it does look like a software fault (possibly a hang in the battery temperature daemon?). I get exactly the same set of "stale battery temp" log messages running up to an in-call reboot, which happens when the time difference between the "now" time_t value and the "lastupdate" value hits roughly 250 (maybe 255?) seconds. I'm guessing that, once it's been unable to check the battery temperature for this length of time, the watchdog just reboots the phone as a safety measure.

Not sure if it's related, but I also have a couple of other errors logged (roughly 5.5 mins and 4 mins before the reboot):
Fri Jun 25 14:03:53 unknown com.apple.AppleHDQGasGauge[25] <Error>: select: Operation timed out
Fri Jun 25 14:03:53 unknown com.apple.AppleHDQGasGauge[25] <Error>: hdq read(0x08) fail

Again, if anyone from Apple needs them, I've got full logs available on request.

Dear Steve,

I'm a huge Apple fan and I still have the faith but this latest fault with IOS4 is completely unacceptable. I have had two days of critical business activity with extremely important clients and my phone has repeatably let me down, which is far from ideal (HUGE understatement) and incredibly stressful (how I did not launch my iPhone into the nearest brick wall I'll never now).

I have a standard 3GS 16GB and it has worked perfectly to the point of my IOS4 upgrade. Since then the phone is useless - real junk. At least let me go back to v3 and get my phone back. I'm sure IOS4 is great on an iPod touch but it is useless on the iPhone (you did test it on the iPhone right).

Anyway, I just wanted to let you know that I am furious along with lots of others. Please acknowledge the fault and let us know that you are treating this as a top priority asap.

Help me keep the faith...

Alfie

MookThompson wrote:
I've also been getting this problem since upgrading a previously faultless 9-month-old 32GB 3GS to iOS 4.

I've also taken a look at the console log, and it does look like a software fault (possibly a hang in the battery temperature daemon?). I get exactly the same set of "stale battery temp" log messages running up to an in-call reboot, which happens when the time difference between the "now" time_t value and the "lastupdate" value hits roughly 250 (maybe 255?) seconds. I'm guessing that, once it's been unable to check the battery temperature for this length of time, the watchdog just reboots the phone as a safety measure.

Not sure if it's related, but I also have a couple of other errors logged (roughly 5.5 mins and 4 mins before the reboot):
Fri Jun 25 14:03:53 unknown com.apple.AppleHDQGasGauge[25] <Error>: select: Operation timed out
Fri Jun 25 14:03:53 unknown com.apple.AppleHDQGasGauge[25] <Error>: hdq read(0x08) fail

Again, if anyone from Apple needs them, I've got full logs available on request.

Oh, if forgot: i have the same error-Messages in the Console Log via Xcode:

Fri Jun 25 18:56:28 Peters-iPhone CLTM[25] <Error>: CLTM: could not find Temperature in IOPMPowerSource
Fri Jun 25 18:56:48 Peters-iPhone CLTM[25] <Error>: CLTM: could not find Temperature in IOPMPowerSource
Fri Jun 25 18:57:08 Peters-iPhone SpringBoard[29] <Notice>: MultitouchHID(20afd0) uilock state: 0 -> 1
Fri Jun 25 18:57:08 Peters-iPhone CLTM[25] <Error>: CLTM: could not find Temperature in IOPMPowerSource
Fri Jun 25 18:57:28 Peters-iPhone CLTM[25] <Error>: CLTM: could not find Temperature in IOPMPowerSource
Fri Jun 25 18:57:49 Peters-iPhone CLTM[25] <Error>: CLTM: could not find Temperature in IOPMPowerSource
Fri Jun 25 18:58:08 Peters-iPhone configd[25] <Error>: watchdog: did not receive thermal notification in time: 0x0000003b
Fri Jun 25 18:58:28 Peters-iPhone com.apple.AppleHDQGasGauge[25] <Error>: select: Operation timed out
Fri Jun 25 18:58:28 Peters-iPhone com.apple.AppleHDQGasGauge[25] <Error>: hdq read(0x0a) fail
Fri Jun 25 18:59:16 Peters-iPhone SpringBoard[29] <Notice>: MultitouchHID(20afd0) uilock state: 1 -> 0
Fri Jun 25 18:59:16 Peters-iPhone SpringBoard[29] <Notice>: MultitouchHID(22def0) device bootloaded
Fri Jun 25 18:59:19 Peters-iPhone CLTM[25] <Error>: CLTM: stale battery temp: now = 1277485157, lastupdate = 1277485070
Fri Jun 25 18:59:25 Peters-iPhone SpringBoard[29] <Notice>: MultitouchHID(20afd0) uilock state: 0 -> 1
Fri Jun 25 18:59:27 Peters-iPhone SpringBoard[29] <Notice>: MultitouchHID(20afd0) uilock state: 1 -> 0
Fri Jun 25 18:59:27 Peters-iPhone SpringBoard[29] <Notice>: MultitouchHID(22def0) device bootloaded
Fri Jun 25 18:59:41 Peters-iPhone CLTM[25] <Error>: CLTM: stale battery temp: now = 1277485179, lastupdate = 1277485070
Fri Jun 25 19:00:01 Peters-iPhone CLTM[25] <Error>: CLTM: stale battery temp: now = 1277485199, lastupdate = 1277485070
Fri Jun 25 19:00:21 Peters-iPhone CLTM[25] <Error>: CLTM: stale battery temp: now = 1277485219, lastupdate = 1277485070
Fri Jun 25 19:00:41 Peters-iPhone CLTM[25] <Error>: CLTM: stale battery temp: now = 1277485239, lastupdate = 1277485070
Fri Jun 25 19:00:58 Peters-iPhone configd[25] <Error>: watchdog: did not receive thermal notification in time: 0x0000003b
Fri Jun 25 19:01:01 Peters-iPhone CLTM[25] <Error>: CLTM: stale battery temp: now = 1277485259, lastupdate = 1277485070

AAAAAAAAAAAAAARhhhhhhhhhhhhhhhhhhh!

Since my last post I have had 3 calls and three crashes - nightmare!

Apple please fix this you have broken my phone. I paid for it and I love it but you have broken it.

add me and my wife to the list,,, and we're both in the same position as alfie,, as in both loosing business calls 5 mins in EVERY call...

need to get back v3 as a matter of urgency or am off to O2 store in the am..

Add me to the long list too, constant reboots when used for calls, internet, playing music. If left alone it does'nt reboot but as soon as you start to use it, there she blows! reboot city!!
And to think i was going to buy the new iphone 4 as the mrs wanted mine, Dont think so now!

double click home button and you will see what apps are running, touch one for three seconds and a red symbol will appear by touching the red symbol the app stops running.. do this to all apps in tray except phone....i did this and it did not cut out for the first time since the upgrade...

baldiphoneuser wrote:
I have downgraded from iOS4 to 3.1.2.

BaldiPhoneUser, could you please give details on that. All I read is that this is either not possible or a real pain and when I find instructions on doing it, I also find many people that have not been able to get it to work.

Exactly the same problem - iPhone 3GS 16G, updated it on Wednesday and has rebooted at varying times during calls. Went straight to the Apple store to be told to try a restore. There was a carrier update when I connected to iTunes about an hour ago, so I wondered if that would make a difference. I'm with O2.

Did some test calls to my dad, it was good fun trying to pad out a conversation knowing that we were both waiting for the phone to cut out!!

First reboot was after 7mins, then at 18mins 31 sec.

After this reboot I decided to make sure that the only app that was running was the phone app. Strangely, when the phone reboots itself, it doesn't close the apps that are multitasking, so when the phone has restarted they are still there.

I closed them all down and managed a 20min phone call with my dad, then he had to go out so we hung up.

After reading this forum I'm reluctant to restore my phone as it seems a lot of effort for no reward whatsoever!

Not impressed, Apple were my technology fave until this! Its worse than Microsoft's blue screen of death!

Sort it please Apple!

mine reboots in the horizontal position with wired headset. Also as other people pointed out the sensor to dim the screen next to your ear is not working now on ios 4 (same non functioning issue on iphone4's ive read on here)