Device info
Your carrier: Celcom Malaysia
Model: 9780
OS: OS6
Battery Pull didn't solve my issue.
Hi, as per title, my previous sim card had a problem and I had to change sim card but still keep the phone number.
Now when I managed to change sim, the BB Protect gave me a notification within the app itself notifying me about my sim card being changed. Being prompted to login using BB ID to verify this change, I tried to log in but it was with no success. Now, my 9780 isnt connected to BIS regardless of having 3G coverage.
I also had BB Protect on with my previous sim, when I changed card it gave me a message to confirm this change and asked to login with my BB ID, but tried over wifi and BIS but cant connect.
Having so much diffculties, I made a backup on my pc and run the security wipe. But, still unsuccessful.
I tried rebooting, called my telco but still no success. Also, my telco told me that BB Protect had nothing to do with any of this and I'm from Malaysia.
What should I do? 
It sounds like your BIS account has not properly migrated with this new SIM. Sadly, even though you tried already, only your telco can resolve this...it is their system. This time, don't let them fob you off...escalate if the person you reach cannot resolve it. Indeed, they can escalate all the way into RIM if necessary.
Good luck!
Occam's Razor nearly always applies when troubleshooting technology issues!
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