Dear Sir
I update my BV6000 to V01_20161216 by local file and now i have android 7.0 ,i tried to step up to the other update but nothing.Also after the update the microphone volume turn low and if i put *#9646633# it comes to engineer screen but it is telling to access from develop settings and closes.Waiting your prompt reply thanks in advance.

vankosk wrote:

Dear Sir
I update my BV6000 to V01_20161216 by local file and now i have android 7.0 ,i tried to step up to the other update but nothing.Also after the update the microphone volume turn low and if i put *#9646633# it comes to engineer screen but it is telling to access from develop settings and closes.Waiting your prompt reply thanks in advance.

Hello, sorry to reply you late. This is the need to open the version number in the settings, click 4 times and the developer options will appear