I have used your OTO update - then interrupted calls.
I have done according to your instructions to update the older version.
Result: Phone is dead (nothing works)
Your link to the manual is not working (can not connect).
The conclusion is:
- you are not able to know, what to do
- your OTO update has brought the whole problem
The BV6000 is nothing. Telephone probably should be discarded.
You are still able to cope ? - no broken link
Mobile phones blackview = great disappointment. I thought I would have a good brand of mobile for the future as well. Unfortunately, no.