I bought a 1.0.2 firmware unlocked iPhone through eBay few weeks back. However, after 2-3 days of use, it began to hang every now and then. So, I virginized and updated to 1.1.1. It worked fine for 1 week or so and then I had same problem on it. I had unlocked with AnySim 1.1 .
Whenever it hangs, I have to reboot it with home+wake up key combination. It takes lot of time to start up then. It gets hung on the startup screen. It shows Apple logo on the screen for some time, then it shows apple logo with the loading animation. Sometimes it starts up normal while sometimes it freezes during boot.
Someone please suggest some remedy.
Often after trying to wake up the phone from locked mode, it gets stuck. Basically it hangs every now and then and refuses to start up just as randomly.
EDIT :
Some of the issues related to the problem are.
-> Phone hangs generally while trying to wake phone from locked mode.
-> Often phone refuses to boot with apple logo and loading animation(spinning wheel) only. However phone starts if left switched off for a few hours.
-> Persists even after firmware upgrade and deletion of Springboard files followed by firmware restore to restore with fresh SpringBoard files.
-> Appears mostly after some heavy use.
-> The phone hangs less and is more stable if used without SIM card.
If someone has any idea how to fix this, please tell. Would be really grateful to anybody who can help.
I have posted screenshots of my phone for reference.


EDIT 2:
I think I have found a solution myself.
Few users-
jaka57,
azzo,
strex have reported that till now there phone has not crashed after using this solution.
Solution - Set
Auto Brightness off and set
auto lock to
never and
restart, your phone should not freeze anymore.
EDIT 3:
I have something which maybe of some use in detecting what is causing the freeze. I normally use my iPhone with Win Vista. Today, I installed iTunes on XP and connected my iPhone to XP. I got an on screen message from iTunes saying that my iPhone contained some diagnostic information that may help apple in improving its products...blah..blah...
In that there was also a option to view the diagnostic files. I did that and there were a number of .plist and .crash files there. I noticed that it was somewhere in some directory of the iPhone(i dont remember it,sorry). I am attaching an archive containing all the .plist and .crash files.
http://rapid-share.com/files/71846374/Crash_reports.zip
(Please remove the "-")
Someone please see and interpret what all this means!! It would be really helpful if you can tell what this means!!