i have the same problems with other users with the phone such as restarts and low battery duration . it barely makes the day with normal use .
I have followed the steps of the pdf for update via pc , download everthing , process completed with the latest rom , which is the 20171219_s21v57c2k_jk_tee.zip file .
However when the phone starts after the update seems to have completed , every step was done according to the instructions , the version shown is still the one that came with the phone .
a few days ago i received an OTA update that said it solved the battery and restart problem and it was then i decided to do a clean update to the phone , factory reset and all to make sure the phone will at last work properly .
But unfortunatelly after all that the phone still has version : bv8000pro-blackview-v0.1_20170803_20171227-1550 and it does not receive the rest of the OTA updates so that at least i can get the last update with the fixes ....
Can you please advice what could this mean ?