full fácil solo
eliminar claves de wifi en el cel, luego hard reset, luego lo pones en modo fastboot , te pide oprimir el boto de subir volumen y mantenerlo oprimido, hay ya hace el proceso cuando termine, enciendes el dispositivo haces todo el ingreso, entras y activas el modo desarrollador y la depuracion usb, le das ok en octoplus y termina el proceso, es fácil.
Este lo acabo de hacer, consume 15 creditos.
Platform: XIAOMI
Selected model: REDMI 6A
Please, select one of the options for "Reset Mi Account" operation or press Ok to continue...
Go to "W-Fi Settings" and forget connected Wi-Fi network or perform Wipe Data from recovery
Put the phone in FastBoot Mode:
1. Press and hold "Vol-" and "Power" buttons.
2. Wait until the phone enter in FastBoot Mode.
3. Connect USB cable.
Connecting to server...
Checking smart card...
Username: agjpv2s
Authorizing...
Checking balance...
Your balance: 190 credits.
Checking operation...
Operation successfully checked.
Sending device information...
Get credits, needed for current operation...
Your balance: 190 credits. Need: 15 credits.
Press and hold "vol+" and press OK buton.
Searching for a phone. Please wait...
Found phone on COM4
Detecting Chip Version...
HW Chip: MT6762: 0766.0000
HW Version: 8A00.CA00.0000.0000
Connecting...
Brom Version: 05
BootLoader Version: FE
Sending auth...
Sending Auth Data...
Target Config: 0x000000E7
Start Authentication...
Connecting to server..OK
Authorizing...OK
Initializing..OK
Calculating...
Authentication done!
Searching Download Agent...
Selected DA: MTK_AllInOne_DA_v3.3001.2018/04/19.10:40_426269, n.0
Sending Download Agent...
DA sent successfully
Initializing DA...
Synchronizing with DA...
Mobile Status: SYNC
Mobile Status: brom
Sending BootLoader Info...
Initializing Memory Flash..
Initialization successfully completed
Sending loaders...
Mobile Status: SYNC
Reading Flash Info...
EMMC rpmb size: 16 Mb
EMMC boot1 size: 4 Mb
EMMC boot2 size: 4 Mb
EMMC gp1 size: 0 Mb
EMMC gp2 size: 0 Mb
EMMC gp3 size: 0 Mb
EMMC gp4 size: 0 Mb
EMMC user area size: 29820 Mb
eMMC Flash: .15010051.4436334D.4201DF75.CC536531
eMMC Flash: Samsung: QD63MB
Internal RAM size: 256 Kb
External RAM size: 512 Mb
Reading partition...
Reading info...
Brand: xiaomi
Model: Redmi 6A
Device: cactus
Android version: 8.1.0
Display ID: O11019
Resetting Mi Account...
Reading MI part...
Formating MI section
Please power phone ON and enable "USB Debugging" then press "OK" button!
Searching for a phone (waiting for ADB device)...
Please, press "OK" button on the phone to allow USB debugging..
Phone found.
Reading info...
Phone model: Xiaomi Redmi 6A
SW version: O11019
Date: Fri Aug 23 09:03:07 WIB 2019
Android version: 8.1.0
Baseband MOLY.LR12A.R2.MP.V24.32.P142
Disabling Mi Services...
Mi Account is successfully reseted!
Backup saved as xiaomi_Redmi 6A_06-09-2019_00-37-39.dump file
Performed by 1.7.8.0 Software version.