Hey İ have bv6000 after upgrade i lost imei no. İ have been tried meiu meta , sn writer tool as described on the topics in this forum. But there is problem. The phone is not enters to meta mode. When i continusly press the volume down - button. Aproximattely 10 times i tried it. Now i checked all drivers but all of them okey. Also while flashing there is no problem i can flash phone. Sn writer tool always says preloader com port connectinon timed out... . i need help. Please help me about it. We are Blackwiev users need to see videos about imei writing. ( different ways . i watched shared videos.)
Also new tools as phone fixers using.

Thx a lot