root realme c15 by magisk

Install adb and fastboot (minimal adb & fastboot for windows and via pkg manager in linux)

1.Download deeptest for realme c11 as all tools/roms of c11/c12 and c15 are same

2. start applying and after 1bout 15 minutes you will get review successful.

3.start in depth test and device will start in fastboot mode

4. fastboot flashing unlock [may need sudo]

5. select unlock bootloader [this step will wipe user data so backup if necessary]

6.to install magisk download magisk apk , stock boot.img of c15 rom and vmbeta.img

to bypass boot verification( Optional ? not sure)

vmbeta.img:

https://drive.google.com/file/d/1W-14CBShXQoIZonuRGo_sliO3anWw2Jj/view?usp=sharing

stock boot.img

https://drive.google.com/file/d/1QUsmkzrs_q8oGJLeWOHhqDNOTSobUd_O/view?usp=sharing

7.patch boot.img to get magisk_patched_something.img file

move files , vmbeta.img and magisk_patched_something.img to adb directory or start adb(terminal) via dir in which these files are

8. adb reboot bootloader

9. fastboot flash boot magisk_patched.img

10.fastboot –disable-verity –disable-verification flash vbmeta vbmeta.img

11. fastboot reboot

source:https://forum.xda-developers.com/t/ubl-root-realme-c15-rmx2180_11_a_85.4244911/