[Please help] 7731C lost GSM signal after FactoryDownload
[Please help] 7731C lost GSM signal after FactoryDownload
(07-01-2019, 09:52 AM)ducnv Hi All,
I have some 7731C phone that lost GSM signal after using FactoryDownload tool (not UpgradeDownload)
Pls help in guiding me how to restore GSM signal
Note: After using FactoryDownload then UpgradeDownload, it will show error as attached image