Welcome! Who ever can help - flashed via SP Flashtool official firmware ver.2 Apparently made a mistake and flew all rooms - IMEI, serial and MAC. Using SN Writer all restored - but now doesn't connect to the GPS satellites. I tried all methods to restore functionality of phones on MTK relate to older processors and versions of Android. Please help with advice how it is possible to recover the GPS. Backup NVRAM, unfortunately, did not. Thank you!