i have a blackberry 9981 porsche and is always resetting alone and the touch screen is not working and even the camera
i check if there was any update of the software
You can do a factory reset/security wipe and start afresh just in case there is something installed that is affecting it.
options / security options / general settings
Press menu button (blackberry)
wipe handheld / "blackberry"
It will clear or "wipe" all the data of your phone.
If this fails you will need to have the device replaced. Please let me know how this goes.
The information it was not correct , im on the phone with the tecnical support of the blackberry and im installing back all the software from the blackberry desktop software after making the back up of my device .