bambus wrote:
2. Another problem is often black screen parts appears in some programs: browser, aliexpress, etc.
3. And third problem - is lighting sensor - is it works? screen always darker then usually.
The version 4.6 is known to have some bugs in the system ,most advisedly to format the SD Card ,remake partions ,Wipe Clean the device and install the new version 4.7. Through out the post pages there are a few changes you can make to better your performance.
*note* Updating from 4.5 to 4.6 and 4.7 will not completely remove all the system bugs ! ,and cause the known blackscreen and lighted up menu buttons. A suggestion to make a total new installation is required once a back up is made. Select " Google's Backup Restore " function in the settings menu before installation. This provides a application installation to your phone once the new rom is installed and WiFi is activated.





