Stock Magisk Patched Kernel for S20 Ultra 5G G988B Exynos

[geiti94]

Like the title says here its a Magisk Patched Kernel for the S20 Ultra 5G G988B exynos Variant.

Since the S20 needs Canary Magisk and latest Canary Magisk Manager have problems with Patch images (Manager Crashes) i patched the boot.img manually


Soon i will make a custom kernel too. so means i will then convert this thread to the one for my Custom Kernel but for the moment it will be used for the Stock Patched Kernel.

Tomorrow i will add S20 5G and S20+ 5G kernels too


How to install:

1. Enable Developer Settings
2. Enter Developer Settings
3. Enable Oem unlock
4. Reboot in download mode and unlock the bootloader (boot with button combo in download mode and not with adb or recovery!)
5. Bootup the phone and setup it without accounts (Make sure the phone is connected to the internet or prenormal will be triggeret)
6. Reboot again in download mode and flash the tar with the kernel with ODIN.
7. Reboot in recovery mode and make a factory reset / wipe
8. Bootup again the phone and setup it again. this time with accounts when you want and make again sure the phone is connected to the internet over the simcard or wifi!
9. Install the latest Magisk Manager Canary done


Download: From My Synology NAS



XDA:DevDB Information
Stock Magisk Patched Kernel for S20 Ultra 5G G988B Exynos, Kernel for the Samsung Galaxy S20 Ultra

Contributors
geiti94
Kernel Special Features:

Version Information
Status: Stable

Created 2020-03-11
Last Updated 2020-03-11

 

[dlads]

Legend.

 

[dragsterman]

@geiti94

Thx.

What do you mean with this "boot with button combo in download mode and not with adb or recovery" ?

What firmware version is this kernel from? (just to make sure there wont be any compatibility issue)

Also is there any guide how exactly should I flash the tar and the kernel with ODIN?

Sorry for the noob questions i rooted Samsung phone longtime ago, but I want to root my S20U as soon as possible because in order to root i must wipe so its good to do it when the phone is new.

 

[zulu99]

Thanks Bro.
My just arrived and thanks to you and to the Magisk developer, 30 minutes after the unboxing, i rooted my Galaxy S20 ultra.

I made a small video as proof of root
https://youtu.be/aaNhm-PMt1s

P.S.
I installed the liboemcrypto.so disabler magisk module to see netflix, prime video etc.

 

[buddy66]

7. Reboot in recovery mode and make a factory reset / wipe

Is this step mandatory?

 

[geiti94]

Is this step mandatory?

Yes it is since flashing a patched kernel breaks encryption

 

[buddy66]

Yes it is since flashing a patched kernel breaks encryption

Since there is no good backup solution when the phone is not rooted, does the Samsung Cloud Backup work after that? If you have any other backup solution then please, share :angel:
Oh and since OTA are not working when we apply root, can I apply those updates with odin without flashing the kernel again?

 

[tiho5]

What about multidisabler?

 

[ACiDC0re]

Thank you so much!
@dragsterman
key combo for download mode is: Hold Volume up + Volume down and plug in your PC. You need to turn off your phone first.
Flash in odin via "AP".

 

[buddy66]

Ok I am backing up everything to Samsung Cloud & Google, hard copy of internal storage and will test that baby.
Is there any tool that downloads only the OTA or do I have to always download a complete new firmware?
We always had to format data with TWRP in order to get rid of the encryption. Is the stock wipe enough?

 

[geiti94]

Ok I am backing up everything to Samsung Cloud & Google, hard copy of internal storage and will test that baby.
Is there any tool that downloads only the OTA or do I have to always download a complete new firmware?
We always had to format data with TWRP in order to get rid of the encryption. Is the stock wipe enough?

encryption stays here since works with magisk only. only after twrp gets an update for logical partition is then again needed to format data etc. but that will take a while

 

[buddy66]

encryption stays here since works with magisk only. only after twrp gets an update for logical partition is then again needed to format data etc. but that will take a while

Thank you for the clarification. With this modification I will be able to run TitaniumBackup so it will not be that hard to backup the data. I just hope the google backup does the appdata backup well.

 

[innit]

Yes it is since flashing a patched kernel breaks encryption

can we reboot the phone normally after rooting or do we still have to use the key combo to boot into rooted system?

Samsung Galaxy S20 Ultra 5G (SM-G988B)

 

[Resync]

Any way to keep esim?

 

[Akutsito]

So you just downloaded the firmware, applied the patch locally, and then flashed the new firmware?

Do you have any guide or the cmds used to patch the original bootimg? I'm interested in trying this for my S20 4G

 

[geiti94]

can we reboot the phone normally after rooting or do we still have to use the key combo to boot into rooted system?

Samsung Galaxy S20 Ultra 5G (SM-G988B)

s20 can boot normaly since root i back in boot.img and no more in recovery.img like s10 :victory:

 

[geiti94]

So you just downloaded the firmware, applied the patch locally, and then flashed the new firmware?

Do you have any guide or the cmds used to patch the original bootimg? I'm interested in trying this for my S20 4G

normaly you can patch the boot.img with magisk manager but it crashes since the s20 needs canary one. so i flashed the s20 kernel on my n10 and then patched the image in twrp with magisk zip

 

[m8980]

works so far, but no write access to /system/app.


Tried different root explorer apps.



root granted

 

[geiti94]

works so far, but no write access to /system/app.


Tried different root explorer apps.



root granted

its normal. its since s10 or s9 so. and on s20 you cant write anythings in system without twrp since the partition are read only

 

[buddy66]

its normal. its since s10 or s9 so. and on s20 you cant write anythings in system without twrp since the partition are read only

So there is no option to install for example YouTube Vanced since it has to be copied into /system/app?