How to Flash TWRP and Root Samsung Galaxy M20

How to Flash TWRP and Root Samsung Galaxy M20. It may be works for other variants SM-M205F, SM-M205FN, SM-M205G, SM-M205M. This Root method use TWRP and Magisk. Read notes / Warning on the bottom of this post before perform root your Samsung Galaxy M20. Take it at your own risk! Follow the instruction carefully and Make sure to backup all your important data!

Step by step Rooting Samsung Galaxy M20

• 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 )
• Make sure the bootloader are unlocked, If not read How to unlock Bootloader
• 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 Latest Magisk Manager ( MagiskManager-v7.5.1.apk )
• Download Magisk and copy it to external SD Card
• Download TWRP for M20 ( twrp-3.3.0-0-m20lte.tar )
• Download RMM_Bypass_v3_corsicanu.zip and no-verity-opt-encrypt-6.0.zip copy its to external SD Card.

Flashing TWRP and Rooting Galaxy M20 :

1. Make sure the bootloader are unlocked, OEM unlock option is grey
   
2. Enter Download Mode : Turn Power Off. Press and hold Volume Up key + Power Key, When Samsung Logo appears release Power Key only, keep pressing Volume Up key until Android Recovery Mode Appears. Select Reboot to bootloader.
3. Open ODIN, IMPORTANT!: Uncheck “Auto Reboot” in Options!
4. Flashing twrp-3.3.0-0-m20lte.tar as AP in ODIN,
5. Connect to the phone to computer then click start.
6. Magisk is now successfully flashed to your device! Several steps before you can properly use the device.
7. DO NOT SKIP THIS STEP! Press and hold Volume Down + Power Key, when the screen blank quickly press and hold Volume Up + Power key, when Samsung Logo appears release Power key only, keep pressing Volume Up key until TWRP Recovery Mode Appears.
8. Select Wipe -> Format data.
9. Select Mount, select System, data, cache and Micro SD card
10. Select Storage button. Tap Micro SD card. Tap OK.
11. Select Reboot -> Recovery
12. Install RMM_Bypass_v3_corsicanu.zip and confirm
13. Install no-verity-opt-encrypt-6.0.zip and confirm
14. Install Magisk zip
15. Select Reboot to System
16. Setup the phone
17. Connect the phone to Internet wait for a moment, make sure OEM unlock option is grey
18. Install Magisk Manager. Magisk Manager will ask to do additional setups. Let it do its job and the app will automatically reboot your device.
19. Done! You can use Root Checker to check it, Enjoy!

If something goes wrong and you want to unroot it, just flash the ROM to make it works again. Read How to flash Galaxy M20 / Unbrick.

Notes / Warning!

1. Use at your own risk, I’m not responsible for bricking your device.
2. Using the incorrect file may brick your device.
3. If your target device has a custom firmware flash counter, Rooting will trigger it. If you’re lucky, Triangle Away has support for your device and can be used to reset the counter.
4. If you have a KNOX-enabled device, Rooting will trip the KNOX WARRANTY VOID status !
5. If your device storage is encrypted, Rooting will wipe your data !
6. If you have locked bootloaders, flashing one of these will probably brick your device – with the exception of Nexus devices, which will usually automatically “OEM unlock” and wipe your data !
7. Make sure to backup your important data before root it.

Watch this video: