bbs.blackview.com

Hi,
I have my phone since Monday and already downloaded the BV6000_Blackview_V01_20160919 Firmware to fix the problem with thr test-keys.

The issue that I still have with the phone is, that the compass is inaccurate. If I calibrate it points vaguely in the right direction but after a second or two it says low accuracy please calibrate.
I just wanted to know, if other people still experience similar things with their device.

Another odd thing I came across while playing pokemon go, is probably a gyroscope issue. Apps that test the gyro like Z-DiviceTest recognise the correct pitch and roll and yaw movements. But in the AR-mode of pokemon go, if i hold the phone perfectly still, the pokemon shifts slowly to the side and out of the screen. I think the app registers a movement from the gyroscope, that is not there. Can anyone confirm this?

The phone otherwise works great. I just think the used sensors are just not of the best quality and this is nothing a software patch can fix. That being said, is for the price of the phone something I can life with. I am just posting this here to see if other people have similar experiences.

"If I calibrate it points vaguely in the right direction but after a second or two it says low accuracy please calibrate.
I just wanted to know, if other people still experience similar things with their device."

I also have problems to calibrate the compass and get the low accuracy message (if I manage to properly perform the figure 8 movement at all).

Nonetheless, my compass is relatively accurate.

Hy ,

I have the same problèm,one minute After to calibrate, low accuracy please calibrate , there is an issue ? I think i'ts à problèm to take à photo 360 , i have anyy problèm to take this kind Of picture , i dont move the phone and the screen move , the phone believe that i rotate on the left but no mouvement...

Best regards
Sébastien


Best regards
Sébastien

aztec165 wrote:

Hy ,

I have the same problèm,one minute After to calibrate, low accuracy please calibrate , there is an issue ? I think i'ts à problèm to take à photo 360 , i have anyy problèm to take this kind Of picture , i dont move the phone and the screen move , the phone believe that i rotate on the left but no mouvement...

Best regards
Sébastien


Best regards
Sébastien

The screen moving comes from a drift in the gyroscope. I said that in another comment here but it got censored. This is most likely because of a cheap sensor and there isn't anything you can do about it.

BTW
last version is 20161108-1812

I guess that almost every device has this bug that the compas sensor is not easy to calibrate and calibration only stay some seconds. The only real bad effect I noticed with this is when you watch out for right direction on a map. All 360-movement-things work korrekt with gyroscope.

Phil wrote:

I guess that almost every device has this bug that the compas sensor is not easy to calibrate and calibration only stay some seconds. The only real bad effect I noticed with this is when you watch out for right direction on a map. All 360-movement-things work korrekt with gyroscope.

As I stated, the gyroscope is not working very well on this device. There is a drift. The screen moves always slightly in one direction even if the phone is completely still.

Indeed, there is a drift on gyroscope. While the accelerometer can be calibrated (originally in rest it showed acceleration exceeding 10 instead of 9.81) there is no gyroscope callibration. When the magnetic field vector sees no change but gyroscope reports rotation, there is contradiction in readings.

Generally,, the compass works poorly. The error is usually +/- 90 degrees, but can show north at the south as well.

Gyroscope calibration could help, if not with compass, at least in applications using the gyroscope. I thing this feature should be added to the next update.

I have noticed the same problems with the gyroscope and the compass. The gyroscope has a slight drift but hard enough to cause the compass to fail I guess. It is very difficult to calibrate the compass and it loses calibration after a few moments.

It's a shame because I'm quite happy with the phone. Hope it can be fixed in a next update.