Recommendation: if you have your Bluetooth turned on, it is better to
keep it off unless you use it to avoid potential virus infections
If your phone under WD2, remove first the memory card except 7650, scan
and format it using ur PC with memory card reader, u have to reformat
ur phone:
1. using *#7370# or *#7780#, press OK then wait, insert ur SIM and observe, if it is OK, then it is the time to insert ur MMC
2. 2. use UFS to reformat, go to in UI settings, press LOCAL, wait till
it done, press NORMAL, wait till it done. Then click Format USER are,
wait till it done, , insert ur SIM and observe, if it is OK, then it is
the time to insert ur MMC
For BB5 units, click everything in UI Options, , insert ur SIM and observe, if it is OK, then it is the time to insert ur MMC.
If the aforementioned tips are not working well, the last option is to
reprogram ur phone by selecting good version, but be careful in
choosing the versions cause it might harm to the phone or perhaps it
can kill ur phone.