iOS4 update - now iPhone now reboots during phone call (continued)

Bug fixed 🙂

After an appointment to a Genius Bar :

- 1st : we can replace for 199 €

I not agree

- 2nd : we can replace for 99 €

I not agree

- 3rd : we replace for 0 €

A agree 😉

1 hour to discuss but my new 3gs don't reboot now.

Christophe

Hi there,

I've been having this same issue for weeks now, a few mins into a call and the phone shuts down. While its good to know I'm not alone I really would like to fix it. Can anyone help me?

Thanks

Have read Jontys posts with interest - my problems seem to have started AFTER upgrading a battery though (although this may have been a coincidence with a new ios upgrade as well) I can't really be sure.

Shortly after the battery upgrade noticed the phone kept randomly resetting during calls. Since then I have tried Jontys other fix of taking the sim out, restarting and then putting it back in.

I actually thought that worked, but have recently had 2 resets after 2 minute calls. v annoying.

as a last resort I think I will deconstruct the phone and battery again and see if that works. If that doesn't work then I have no other choice other than a rollback or jailbreak - will probably jailbreak as am finding this situation and the lack of any fix from apple very frustrating! arghhhgghg.

jonty i can not seem to find your email on your profile. maybe its coz im new (bummer) my phone randomly restarts, but mostly right after chargin when the battery is above 50%.

i am running a jailbroken 4.3.2, and replaced the watchdogamathing as stated on the link at the top of the page using iphone explorer. this did not work for me. it still resets. any help?

Hi all,

Just wanted to report the same issue with an early 32Gb 4GS (out of warranty) rebooting during calls after about 4/5 mins into call.. This started as soon as I'd updated to iOS 4.1 from 3.1.3: phone was not jailbroken. Tried the usual restores; sim out reboot; Orientation locks; Nofications off; Wifi off, 3G calls off; everything I could think of off; starting call with no recent apps showing etc - no luck.

Eventually, jailbroke my 'phone, (which I did not want to do,) and replaced mobilewatchdog file with the 3.1.3 version and . . . . now I have a working 'phone again, Hurrah, just as good as it ever was.

Don't see why Apple can't issue an iPhone2,1_4.3....Restore.ipsw file on request with the 3.1.3 mobilewatchdog file included. Like everyone else I'm very dissappointed with Apples lack of response to this issue, which as far as I'm concerned, they caused by the iOS 4.... onwards update.

BTW, before I tried the file MobileWDG replacement, UK Genius Bar guy said they could replace the battery for £55, but he'd never heard of the issue, so couldn't guarantee it would fix the problem. He also admitted that they don't actually replace the battery as it takes too long: they just give you a reconditioned 'phone. I guess that's not a quotable quote. I declined the offer as even £55 is too much to fix a 'phone that Apple broke.

Thanks to Jonty and others for advice shown in this forum.

Hello Jonty.

Could not see your email in your profile. I am using an iphone 3Gs 16GB 4.3.2

could you please send me details of the fixes you have mentioned.

my phone is going to reboot during calls. my email is in my profile

Hi Jonty, i saw that you found a way to fix this problem. I didn´t find your e-mail address in your profile. May you help me, my e-mail is catalanojr@yahoo.com.br. Pardon my bad english, but I´m brasilian.Tks, Catalano Jr

Unfortunately, after jailbreanking my 3GS and replaced the "mobilewatchdog" file in the root

/System/Library/SystemConfiguration/mobilewatchdog.bundle/, the problem persist.

The iPhone reboot after 5/8 min.

I already replaced my battery, too.

Anything else to do?

i got also the problem, (Jonty solution doesn't work for me).

And today got the problem, it restart my iphone after using it for 5 a 10 min.

I got the problem for more than 8 month!!

Apple must change the phone for Free!

After the most recent update it seems that the death-on-call might be fixed.

All I've done is to update to iOS 4.3.3, and did so by 'restoring' the iPhone with the new software and the reloaded all my data from backup. I tried the same procedure with previous versions of the iOS and it never fixed the rebooting.

It's nice to see the phone working again. It would've been much better, though, if Apple had let us know that this fix was included. Or is it just pure chance in my case?

Yeah I also updated to the new 4.3.3 firmware and my phone didn't restart yet, I didn't change the battery or anything but it's been running good for an hour and didn't reboot so I hope the problem won't restart.