iphone restarts itself at random

[100000011]

this started about a week ago. my initial thought was the battery so i brought a new one and fitted it (i am a fairly good electrician and techy afterall). however this didnt fix the issue. i did a little research and a few people were saying that they were having this trouble with ios 5.0.1 and that upgrading to ios 5.1 seemed to fix it, so i tried that but it seemed to make it worse. the phone starts up and i can use it for about a minute or 2 but then it turns itself off and back on again. i'v tried a number of different things like cleaning the power button, fully restoring it, but nothing seems to work. its an iphone 3gs btw.

any ideas what it could be? or how i can fix it?

 

[100000011]

i think it might be the HDD like a loose connection or its starting to corrupt or something... anyone wanna give their views on wether it could or couldnt be this?

 

[jsntrenkler]

I had something similar happen on my iPhone 4, I took it to the genius bar and they replaced it. Since your 3gs is no longer under warranty they still may replace it for you for $149.

Sent from my LG-C900 using Board Express

 

[reahn]

Dont mention you fixed it yourself


Sent from my iPhone using Tapapoop

 

[c_hack]

After 1 to 2 minutes, all regular processes should have loaded, but the internals are still warming up so it could be a hardware / thermal expansion / connection issue. Why not sell it as broke on eBay and upgrade?


Sent from my iPad using Tapatalk

 

[Allyson Kazmucha]

I've seen this with a few devices people have brought in (specifically the 3GS) - unfortunately it normally ends up being a logic board issue.

First and foremost, make sure everything has a secure connection to the logic board. Sometimes a component being not secured completely can cause this. Another culprit you may want to consider is the dock connector assembly. If it's not receiving a proper charge or it's malfunctioning, it can cause the battery to read wrong.

If none of that works, I'd say the logic board is going bad.

 

[Isaac George]

my iPhone 4 just randomly turned off but when i put it in the charger it was 100% battery life, however it was back to its default settings and set-up, does this mean i have lost everything? and it wont let me do anything, if you know what to do that would be great,
regards isaac

 

[mas bro]

same happen with me bro :/ , im so dissapointed, the applestore in my country give option restore in itunes or change the iphone, but takes 3 months and no guarannte it will work :/