Despues de tanto batallar con Chimera y demas y no conseguir nada al fin encontre la solucion, archivos necesarios, root y modem de ingenieria que los adjunto debajo. Primer paso antes que nada activar modo desarrollador y desbloquear bootloader, autoseguido hacerle root al dispositivo, la manera mas facil es con el root de EFT, autoseguido le pasan el modem de ingenieria y ahora vamos al paso final, aqui les muestro el log de parchear certificado que es lo que da problemas realmente con todas las demas herramientas, reparar red con Octopus, OJO (pedira minimo 100 de creditos para hacer el trabajo pero no los consumira). Aqui les dejo el log
INFO : 1/16/2021 1:15:34 AM > Work ID: 00000000006DCCEA
INFO : 1/16/2021 1:15:35 AM > Platform: Samsung Android
INFO : 1/16/2021 1:15:35 AM > Selected port: COM215
INFO : 1/16/2021 1:15:35 AM > Selected model: SM-A750F
INFO : 1/16/2021 1:15:35 AM > Operation: Repair Network
INFO : 1/16/2021 1:15:38 AM > Detected phone model: SM-A750F
INFO : 1/16/2021 1:15:38 AM > Firmware compiled date: Mon Sep 28 12:23:11 KST 2020
INFO : 1/16/2021 1:15:38 AM > PDA version: A750FXXS5CTI3
INFO : 1/16/2021 1:15:38 AM > CSC version: A750FOJM5CTI3
INFO : 1/16/2021 1:15:38 AM > SW version: A750FNXXU5ATI1
INFO : 1/16/2021 1:15:38 AM > Build number: QB16815060
INFO : 1/16/2021 1:15:39 AM > Phone SN: R58M210P69M
INFO : 1/16/2021 1:15:39 AM > Android version: 10 (QP1A.190711.020)
INFO : 1/16/2021 1:15:39 AM > Sales code: XSG
INFO : 1/16/2021 1:15:39 AM > Country: UAE
INFO : 1/16/2021 1:15:39 AM > HW platform: universal7885
INFO : 1/16/2021 1:15:39 AM > HW Chip: unknown
INFO : 1/16/2021 1:15:39 AM > HW Modem: SHANNON327
INFO : 1/16/2021 1:15:39 AM > Security patch level: 2020-09-01
INFO : 1/16/2021 1:15:39 AM > Warranty Void: 1
INFO : 1/16/2021 1:15:39 AM > SIM 1 status: absent
INFO : 1/16/2021 1:15:39 AM > SIM 2 status: absent
INFO : 1/16/2021 1:15:39 AM > Codename: a7y18ltejt
INFO : 1/16/2021 1:15:39 AM > Checking root...
INFO : 1/16/2021 1:15:39 AM > Checking device status...
WARN : 1/16/2021 1:15:39 AM > OK
WARN : 1/16/2021 1:15:43 AM > OK
WARN : 1/16/2021 1:15:43 AM > Phone will restart now. Please don't disconnect cable!
INFO : 1/16/2021 1:15:43 AM > Rebooting phone...
WARN : 1/16/2021 1:15:47 AM > OK
INFO : 1/16/2021 1:15:47 AM > Searching for ADB device...
WARN : 1/16/2021 1:16:26 AM > OK
INFO : 1/16/2021 1:16:26 AM > Checking root...
WARN : 1/16/2021 1:16:26 AM > OK
INFO : 1/16/2021 1:16:26 AM > Connecting to server...
WARN : 1/16/2021 1:16:28 AM > OK
INFO : 1/16/2021 1:16:28 AM > Checking smart card...
WARN : 1/16/2021 1:16:39 AM > OK
INFO : 1/16/2021 1:16:39 AM > Username: **********
INFO : 1/16/2021 1:16:39 AM > Authorizing...
WARN : 1/16/2021 1:16:43 AM > OK
INFO : 1/16/2021 1:16:43 AM > Checking balance...
WARN : 1/16/2021 1:16:45 AM > OK
INFO : 1/16/2021 1:16:45 AM > Your balance: 100 credits.
INFO : 1/16/2021 1:16:45 AM > Checking operation...
WARN : 1/16/2021 1:16:47 AM > OK
INFO : 1/16/2021 1:16:51 AM > Repairing network...
WARN : 1/16/2021 1:17:37 AM > Phone will restart now. Please don't disconnect cable!
INFO : 1/16/2021 1:17:37 AM > Rebooting phone...
WARN : 1/16/2021 1:17:41 AM > OK
INFO : 1/16/2021 1:17:48 AM > Searching for ADB device...
WARN : 1/16/2021 1:18:23 AM > OK
INFO : 1/16/2021 1:18:23 AM > Checking root...
WARN : 1/16/2021 1:18:23 AM > OK
INFO : 1/16/2021 1:18:23 AM > Checking network status...
WARN : 1/16/2021 1:19:25 AM > OK
WARN : 1/16/2021 1:19:25 AM > Network is successfully repaired.
INFO : 1/16/2021 1:19:25 AM > Performed by 3.0.1.0 Software version.
Log file "C:\Program Files (x86)\Octoplus\Octoplus_Samsung\LOG\16-01-2021_01-11-14.log" closed (1/16/2021 1:23:34 AM).
Sabes alguna forma de remover RMM Prenormal en Bit 6?
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