Try mo to bossView attachment 725546
Tinry ko ulet ganon pa ren mapa data o wifi sad
Launch ‘Settings’ app on your device, select ‘About phone’, click ‘System update’, then press ‘three dots’ icon at the top-right corner, and select ‘choose update package’ to enter. Choose the ROM file you’ve put in ‘downloaded_rom’ .
After choosing the right ROM file, your device will begin upgrading. Your device should automatically boot to the new version when the update is completed.