How to Repair Blackberry Imei Using Blackberry Os 7 Tools
This tool only work on on BB 9900, 9930, 9810, 9850, 9860 with QUALCOM IC
an extract it on desktop
open the folder and locate 'BB Imei. exe' open it and type 15 digit blackberry imei
Insert usb cable to your bb
then click write
wait still process finished