Have the same problem with bv 7000, screen becomes black during call. Calibration of proximity sensor or light sensor does not help. Also have the same issues with camera and some applications on screen (part of it becomes black) as described in viewtopic.php?f=191&t=189778&p=377505#p377505.

Soon after updating to latest Rom my fingerprint sensor is not recognised. I loaded 3rd-party apps to detect the sensor but these say 'fingerprint sensor' not installed or 'not supported'. Please help me to get my fnger print sensor to ínstall again as it was at the beginning.

gmbouah10 wrote:

Soon after updating to latest Rom my fingerprint sensor is not recognised. I loaded 3rd-party apps to detect the sensor but these say 'fingerprint sensor' not installed or 'not supported'. Please help me to get my fnger print sensor to ínstall again as it was at the beginning.

try a clean flash of the latest firmware