[General Questions and Answers] fermi6-626:
DEVICE: samsung galaxy f22 sm-e225f (2022)

ANDROID VERSION: 11

TWRP: UNOFFICAL TWRP 3.6.11

VBMETA: disabled

MAGISK INSTALLED before flashing TWRP and flashing using TWRP

I:eek:peration_start: 'Flashing'

Installing zip file '/external_sd/v4afx_v2.7.2.1.zip'

Unmounting System...

I:Update binary zip

Verifying package compatibility...

Package doesn't contain compatibility.zip entry

I:Extracting updater binary 'META-INF/com/google/android/update-binary'

I:Zip does not contain SELinux file_contexts file in its root.

- Mounting /system

mount: mounting /system on /system_root failed: Invalid argument

- Mounting /system_root

- Mounting /vendor

- Device is system-as-root

- Mounting /apex/com.android.apex.cts.shim

- Mounting /apex/com.android.art

- Mounting /apex/com.android.i18n

- Mounting /apex/com.android.runtime

- Mounting /apex/com.android.vndk.v30

- Mounting /apex/com.android.wifi

- Mounting /apex/com.android.adbd

- Mounting /apex/com.android.cellbroadcast

- Mounting /apex/com.android.conscrypt

- Mounting /apex/com.android.extservices

- Mounting /apex/com.android.ipsec

- Mounting /apex/com.android.media

- Mounting /apex/com.android.media.swcodec

- Mounting /apex/com.android.mediaprovider

- Mounting /apex/com.android.neuralnetworks

- Mounting /apex/com.android.os.statsd

- Mounting /apex/com.android.permission

- Mounting /apex/com.android.resolv

- Mounting /apex/com.android.sdkext

- Mounting /apex/com.android.tethering

- Mounting /apex/com.android.tzdata

Archive: /external_sd/v4afx_v2.7.2.1.zip

inflating: module.prop

***********************************************************

ViPER4Android FX

by ViPER520, ZhuHang, Pittvandewitt, MrWhite214, Zackptg5

***********************************************************

*******************

Powered by Magisk

*******************

Archive: /external_sd/v4afx_v2.7.2.1.zip

inflating: customize.sh

**************************************

* MMT Extended by Zackptg5 @ XDA *

**************************************

- Only uninstall is supported in recovery

Uninstalling!

- Unmounting partitions

I:Updater process ended with RC=0

I:Install took 10 second(s).

E:Unable to unlock /dev/block/mmcblk0p4 for flashing: (null)

E:Unable to unlock /dev/block/mmcblk0p6 for flashing: (null)

E:Unable to unlock /dev/block/mmcblk0p14 for flashing: (null)

E:Unable to unlock /dev/block/mmcblk0p13 for flashing: (null)

E:Unable to unlock /dev/block/mmcblk0p9 for flashing: (null)

E:Unable to unlock /dev/block/mmcblk0p18 for flashing: (null)

E:Unable to unlock /dev/block/mmcblk0p42 for flashing: (null)

E:Unable to unlock /dev/block/mmcblk0p15 for flashing: (null)

E:Unable to unlock /dev/block/mmcblk0p7 for flashing: (null)

E:Unable to unlock /dev/block/mmcblk0p5 for flashing: (null)

E:Unable to unlock /dev/block/mmcblk0p11 for flashing: (null)

E:Unable to unlock /dev/block/mmcblk0p8 for flashing: (null)

E:Unable to unlock /dev/block/mmcblk0p10 for flashing: (null)

E:Unable to unlock /dev/block/mmcblk0 for flashing: (null)

E:Unable to unlock /dev/block/mmcblk0boot0 for flashing: (null)

E:Unable to unlock /dev/block/mmcblk0p12 for flashing: (null)

Updating partition details...

I:checking for twrp app

I:Data backup size is 10663MB, free: 96262MB.

...done

I:Set page: 'flash_done'

I:eek:peration_end - status=0

I:Set page: 'clear_vars'

TRIED:

mount -o rw /dev/block/mmcblk0p42

mount -o rw /dev/block/mmcblk0p14

mount -o rw /dev/block/mmcblk0boot0

ERROR: mount: '/dev/block/mmcblk014' not in fstab

factory reset

wiping data, internal storage, cache, dalvik_cache

[ EDIT: I flashed self-modified nethunter kernel twrp-only flashable zip. And the errors are the same. The flashing shows successful, then those errors pop up. Device boots up normally, and kernel shows "4.14.186-nethunter". I am worried if the flashing didn't correctly succeed. ]