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logre encontrar la versión del procesador en test del dispositivo
y era un sc7731c, lo cual procedi a prueba y error con octopus frp el cual me llevo al correcto que es sc7731 v4
con el telefono apagado precionas la tecla de vol - y conectas el cable aqui dejo el log
Platform: __GENERAL RESET FRP METHODS
Selected model: SC7731 V4
Please, reconnect battery, press and hold "Vol+" or "Vol-" button and connect USB cable.
Searching for a phone. Please wait...
Found phone on COM85
Connecting...
Mobile Status: SPRD3
Sending preloader...
Mobile Status: Spreadtrum Boot Block version 1.1
Sending mainloader...
Reading info...
Brand: BLECK
Model: FREE
Device: c390_lgt_a53
Platform: sc8830
Android version: 6.0
Display ID: FREE_OS_1.2_20170721
Searching for signatures...
Resetting FRP lock..
FRP lock is successfully reseted!
Backup saved as BLECK_FREE_13-03-2020_12-01-28.dump file
Performed by 1.8.5.0 Software version.
y era un sc7731c, lo cual procedi a prueba y error con octopus frp el cual me llevo al correcto que es sc7731 v4
con el telefono apagado precionas la tecla de vol - y conectas el cable aqui dejo el log
Platform: __GENERAL RESET FRP METHODS
Selected model: SC7731 V4
Please, reconnect battery, press and hold "Vol+" or "Vol-" button and connect USB cable.
Searching for a phone. Please wait...
Found phone on COM85
Connecting...
Mobile Status: SPRD3
Sending preloader...
Mobile Status: Spreadtrum Boot Block version 1.1
Sending mainloader...
Reading info...
Brand: BLECK
Model: FREE
Device: c390_lgt_a53
Platform: sc8830
Android version: 6.0
Display ID: FREE_OS_1.2_20170721
Searching for signatures...
Resetting FRP lock..
FRP lock is successfully reseted!
Backup saved as BLECK_FREE_13-03-2020_12-01-28.dump file
Performed by 1.8.5.0 Software version.