aubertda wrote:

For your information, I sent the phone back.
...Not sure I will buy another blackview phone...

Me too...

Neo5711 wrote:

Which app did you use?  All the ones I've downloaded say that there is no mediatek hardware on my device and/or there is no engineer mode.

MTK Engineering Mode.
https://play.google.com/store/apps/deta ... eermodeapp
It works on BV6800pro

blackview_admin wrote:

What about tapping on the display the thing you want to focus on? Does this work?

No, when autofocus get stuck and stop working, tapping on the display is useless.
You have to force stop off the camera (i.e. deep cleaning by closing background app) and restart it.

[quote= To run engineering mode no code works. I have succeeded only by one of the various "MTK engineering mode" app easily available on the Play Store. Try![/quote] Were you able to clear up the muffled call audio?[/quote] Not at all! I'm not an expert on it. Many settings are hard to un...

phoenixkk wrote:

blackview_admin wrote:

To enter engineering menu, please try #*#33#*#

It doesn't works.

To run engineering mode no code works.
I have succeeded only by one of the various "MTK engineering mode" app easily available on the Play Store.
Try!

The same problem for bv6800pro! During calls the audio on the other part's phones is awful. My voice is muffled, echoed and when the other speaks  my voice ceases (a two-ways conversation is impossible). I've fuzzed on the audio settings in the engineering mode but with no results. The audio on my p...