[butter0619]

Just upgraded from 4.2 to 4.5 and love the upgraded except every time I use the phone it reboots while talking. I can use every feature with no issues except every time I call or incoming it randomly reboots in the middle of calls...

Any help really appreciated

[kingrx]

That's odd. It shouldn't be the case. Try a battery pull. What version of 4.5 are you using?

[butter0619]

4.5.0.81, I downloaded right from T-Mo site. The only thing I didn't do is remove the vendor.xml. Reading the OS upgrade post stated not to if I get it right from the vendor...

Very weird, sometimes I can talk for 10 minutes and then bam reboot... comes back up I call again and 30 seconds later reboot...

I just reinstalled the OS and going to test. We shall see...

[butter0619]

Nope... did it again, got 12 minutes talking then reboot.

Can you give me a brief description how to downgrade to 4.2...

Thanks

[Reed McLay]

That is very unusual, but rolling it back is simple.

Download and install the earlier v4.2.2.180 from T-Mobile. You should see that listed below the current v4.5xx OS package.

Use Windows Control Panel / Programs / Uninstall to remove the v4.5xx package.

Run BlackBerry Desktop Manager / Applications Loader. You will be prompted to roll back.

[benzworm]

do you have a memory card installed? if so, you may need to format it