Originally Posted by bonerparte
I have a Blackberrry 8300 which I bought from EBay and seems to work generally well.
Unfortunately there is some sort of software glitch which causes the phone to completely reboot itself right in the middle of a call. There is no warning it just goes through the setup screens and verifies the security software before you can do anything. Obviously the call is then lost.
I have used the internal "Wipe" system to reinstall but it does not cure the problem. I have also followed all the instructions about using the Desktop Manager to update/uninstall/reinstall the software but the boxes which you tick to completely wipe the phon in the process are ghosted out and I can not select them.
The phone is branded with the BT logo screen on startup and I am on the O2 network but am struggling to find an explanation or a cure.
I would investigate the current memory on your device and what 3rd party applicatons you have loaded. Also, do you have a memory card on this 8300 device? If your taking pictures without a memory card, the pictures are using your available phone memory and are being stored in your phone memory.
Also, the recommendation to update the OS is good as it will give you an opportunity to tune the device by not loading unecessary languages and 3rd party applications. The mods here on this forum have memory primers you can follow to tune and maximize your memory on the device.
It sounds like you have tried some of the above, but I would focus on 3rd party apps and watching your memory after you update the phone.
You can use JLcommander to wipe the phone and try your updates again.
Let us know how your doing...