iOS4 update - now iPhone now reboots during phone call

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Message was edited by: bidefordjon

Here i am again. I'm running on OS4.2.1
A couple of days ago i plugged my iphone to my pc win xp sp2 then ITune opened automatically like it should be then suddenly it pops up a message error it says a J?????? (i didn't remember it but it start with letter J) is missing that i need to uninstall ITune 10 and reinstall it again but i ignore it. So i continue installing app and synching my Iphone then i noticed that the rebooting occured much frequent like everytime i sync and during call and sometimes playing games. I noticed also wifi and battery performance were bad than before. I get so frustrated until yesterday. I uninstall ITune 10 and reinstall it again. Remove all app i got from ITune and sync my Iphone. So now no any app is installed only those preinstalled once. Then i install all the app in my Iphone do a sync and problem solve. I mean i didn't encounter rebooting (yet) and wifi and battery improves so let's see.

Had someone experience or tried uninstalling all app sync then reinstall them again then sync?

Evil_Steve wrote:
[Edit] This thread has had an insane amount of views and replies. Clearly it's not just a minority of users experiencing this problem as somebody in an earlier post mentioned.

Message was edited by: Evil_Steve

Given that 2000 replies may mean roughly a 1000 people have the issue and have bothered to complain about it here, it's still a drop in the ocean to the number of units out there:
http://en.wikipedia.org/wiki/File:IPhonesales_per_quartersimple.svg

1,000 units with this issue out of 20,000,000 (in 2009) isn't going to get anyone excited, unfortunately. I'm guessing the development and testing cost of fixing this issue outweighs the fact that they may lose 1000 customers.

My 2 cents that the issue is related to bodges they quickly made for the iPhone4 to fix reception problems. It then had a knock on effect for some older hardware - whatever it was, they seemingly can't undo and aren't really that bothered as it has only effected a relatively small number of 3GS units.

Fortunately I got mine replaced under warranty, after 2 visits to the Genius Bar.
I just feel sorry for those of you struggling because of water damage, expired warranty or don't have a Genius nearby. I think the beat course of action there is to jailbreak and put v3 back on the phone.

I never thought I'd ever say this, but I'm quite looking forward to getting a Windows Mobile next!

Regards,
sKK

So... I am a new user in this forum, but still, I am experiencing the same "rebooting during calls" problem with my iphone 3GS OS4.2.1.

I read some messages and answers (not all of them as there a few...) but it seems like there is no solution, really, isn't there ?

Except asking for a new phone, did someone find a way to fix the problem. A post I would have missed...

THank you

My 3GS is having exactly the same problem as described by other users thousands times in this thread. At first I felt happy to find this thread as expecting to see some fixes/answers over here. OMG, after reading the 134 pages only I realized that apple doesn't even acknowledge the issue. I have completely lost my faith and promise myself to go all for android for my next phone!

sergeantKK wrote:
Given that 2000 replies may mean roughly a 1000 people have the issue and have bothered to complain about it here, it's still a drop in the ocean to the number of units out there:
http://en.wikipedia.org/wiki/File:IPhonesales_per_quartersimple.svg

1,000 units with this issue out of 20,000,000 (in 2009) isn't going to get anyone excited, unfortunately. I'm guessing the development and testing cost of fixing this issue outweighs the fact that they may lose 1000 customers.

Well, there are some other ways to look at this. First, a company with literally many billions of dollars of cash on hand and that claims its software "just works" might find the time and money to fix this issue.

Also, they might consider the fact that sometimes small problems blow up into big ones. Exxon didn't want to spend enough money to cap their Gulf well the proper way and it has ended up costing them billions. I doubt it'd get that serious for Apple, but this could snowball into something bigger that might have them thinking "we should have fixed this when it was a small problem."

Another way to view it is that fixing the problem is - plain and simple - the right thing to do. These phones worked and then after the install they have massive problems. It'd be one thing if you could downgrade - and perhaps you can with this .2 release - but on the move from 3.x to 4.0 you couldn't. That'd be an acceptable solution for many people, yet Apple won't allow it. Very foolish and selfish.

Another thing to consider is that there's really no way, based solely on the posts here, to determine how many people this is affecting. It could be many more than you suggest and with Android taking the lead, you'd think they'd not want to appear uncaring, which is exactly how they come across.

I agree GT. Another way to look at it is, as I've mentioned before, whether it's 50 people having issues or 10000 (which is still relatively small compared to the number of iPhone users out there), these people spent a lot of money buying a product that advertised simplicity, reliability and innovation. Then the company that it was bought from broke it. NOT the individual, but Apple. By releasing a "buggy" update or buggy phone that was exposed AFTER the update. I don't know about anyone else, but if someone broke a property of mine, I expect them to fix it or replace it, no questions asked. If I broke someone's property, I am obligated to fix it or replace it. It's called doing the right thing, it's called good business. When cars have SOME reported issues of the same defect, the car manufacturers does a complete recall to get ALL the same model cars, built from that line at that time, fixed on their expense, not the buyers. How is that, or should be any different from the situation with Apple? Unless they just don't care. Which I think is the biggest issue people are complaining about.

Think about it, 1000+ posts, 100+ pages, a lawsuit, even some Apple Care techs' admittance. How does Apple NOT know about these issues. Yet in the last 6 months, they haven't uttered a word it. Yet they've advertised and rolled out 4 updates, discussing new features. But no fix, or an indication of a fix.

As posted before: cars are not supposed to crash and are therefore re-called when a design flaw is uncoverd. Apples are also not supposed to crash, but any design flaw may be neglected by the manufacturer. Very strange.
Many people in this forum have tried to solve Apple's problem by suggesting conditions and fixes. I think, with all respect, you better stop doing this. If there would have been a solution, Apple would have taken steps to implement these (thanks for free help). I can only conclude that if you have a faulty phone, the only way to solve your problem is to have it exchanged for a good one by Apple.

I solved my problem in the meantime by changing my refurbished 3GS to an androïd one. Since then all problems vanished. And this is the best advise I can give you. Sorry for that.

I have the same problem as discussed here.

I seen some posts reffering to battery problems and replacing it solved their problem.

Last night i had a charge of about 60% and when i used the phone later on it showed 18% i was suprised to see how much charge it had lost in a short space of time, about twenty minutres later i used phone again and it was back up to 53%.

maybe it is a false battery reading or battery that is causing the issue?

I seen some posts reffering to battery problems and replacing it solved their problem.

Last night i had a charge of about 60% and when i used the phone later on it showed 18% i was suprised to see how much charge it had lost in a short space of time, about twenty minutres later i used phone again and it was back up to 53%.

maybe it is a false battery reading or battery that is causing the issue?

Yep, similar issue here. I have a MacBook Pro in the house (now on 10.6.5). I was forced to upgrade so I could load music on to my sons iPod Touch 4. Arrrrggghhhh! Nice op system but didn't need it all.

Then I update my iPhone 3GS to 4.2.1 and it won't sync on my work Mac, a dual G5 PowerMac running 10.4.1. Arrrrrggggghhhhhhhhh.

So, now I have to remotely sync my calendars and address book so I can keep them updated on my work Mac. Then transfer all my iTunes to my home Mac. Arrrrrrrggggggghhhhhh. I have to upgrade InDesign CS2 to CS3 or above otherwise I cannot upgrade to 10.5. Arrrrrgggggggghhhhhh! Parallels no longer works on my home Mac. Aaaaaaaarrrrrrrrrrrrrrrrrgggggggggggggggghhhhhhhhhhhhhhhh!!!!!!!!!!!

That says it all. Well almost. My iPhone 3GS was replaced at the weekend due to the call crashing issues. I keep waiting for it to do it again. AAAAAArrrrrrGGGGGGGGhhhhhhhhhh. Not much confidence left.

Can Apple at least provide the affected 3GS users an option to downgrade to iOS 3.x? It was working completely fine!

i guess i have found the possible problem and fix for iPhone 3gs rebooting during call

You will need the file "mobilewatchdog" from 3.1.2 which can be found at
{quote}System/Library/SystemConfiguration/mobilewatchdog.bundle/{quote}

on your 4.2.1 using iphone explorer browse to
{quote}/System/Library/SystemConfiguration/mobilewatchdog.bundle/{quote}
and replace it with "mobilewatchdog" from 3.1.2

reboot

before my phone used to reboot on call by max 10 mins. after replacing "mobilewatchdog" i have made calls upto 45 mins and the phone dos not reboot.


Please do report back if it works for you


ps:- i can post the file here. guess you all know why

Yo icehacker,
you're instruction is a bit confusing kindly make it more clear.
we need the file "mobilewatchdog" from 3.1.2 then replace with same file?

How about using Windows?

cheers

All,
Apologies if this has been mentioned but i didn't have time to read the 130+ pages. I have a 3gs, ios 4.01 which was rebooting 4-5 minutes into every call. I have since updated to ios4.2.1. I then synced to restore my music, contacts, etc. The rebooting issue remained. Next I restored again to a clean 4.2.1, setup as a new iPhone (in itunes) and haven't synced anything. ie. I have a phone with no apps, contacts, calendar, music. The rebooting issue cannot be reproduced. I know a phone with nothing on it is useless but perhaps this will help others narrow down the problem. As for me, I'm off to the genius' to get a new 3gs...hopefully.
Mario