Step by step Installing TWRP 3.3.1-2

[أحمد حزوري - أبو جبريل]

Step by step Installing TWRP 3.3.1-2
on Samsung Galaxy A50 SM-A505FN Android 9 Pie

Enable Developer Options
go to Settings -> About device
Tap 7 times on Build number to enable Developer options

Enable OEM unlock and USB debugging options
( Settings -> Developer options )

Download and Extract ODIN v3.13.1 from
https://odindownload.com/SamsungOdin

Download and Install Samsung Mobile Phone Drivers
http://developer.samsung.com/technical-doc/view.do?v=T000000117

Download TWRP Recovery for Galaxy A50 SM-A505F
https://mega.nz/#!DSI1XYZa!hHpoUbNEuajyqKqDcNHum6e4Yo4vvEQtxQVwDf1K-OM

Download
Disable_Dm-Verity_ForceEncrypt_05.21.2019
and
RMM-State_Bypass_Mesa_v2

Copy all files to SD Card
​

Make sure your phone isn’t RMM Locked.
If RMM Locked or you can not see OEM unlock options in Developer options.
Open ODIN software
In Option make sure to ticked F.Reset Time only and disable Auto-Reboot.
In Files Download ticked AP and pointing to the location of TWRP .tar file
Wipe data / Factory reset:
Turn power off, press and hold Volume up + Power Key,
when Samsung logo appears release all key.
Select Wipe data / Factory reset and confirm.
Select Reboot to Bootloader.
Connect your Samsung Galaxy to PC using USB Cable.
Odin software will auto detect port of your device,
after detected device, klik Start, wait for a moment.
To get out of Download mode and Enter TWRP Recovery mode:
Press and hold Volume Down + Power key,
when screen blanks release Volume down only
and quickly press Volume Up key.
Release all keys when TWRP Recovery appears.
Once TWRP is booted, decrypt data partition touch Wipe>Format Data
and follow the instructions in screen.
Once it finished go back at the home screen and touch Reboot>Recovery
WARNING!!! Don’t reboot to system after flashing TWRP,
and that’s wrong since once you reboot to system after flashing TWRP
and without flashing the RMM Bypass zip will immediately trigger RMM Prenormal lock.
Select Install – Select Storage – Micro SD Card,
First install RMM-State_Bypass_Mesa_v2,
Open Advanced – File manager and go to system/system
and rename recovery-from-boot.p to recovery-from-boot.p.bak
( Make sure system is mounted )
Install Disable_Dm-Verity_ForceEncrypt_05.21.2019
Reboot to System it need more time.. just be patient!
If you get error message Security notice:
“Unauthorized actions have been detected.
Restart your device to undo any unauthorized changes”
Just freeze SecurityLogAgent to fix it.