Database Develop

My signature shows up - but not the image i uploaded with it? Why not

'Sorry i have now learnt how to - sorry for any inconvinece this has caused.'

Android won't reboot after flash

So I have cyanogenmod 13 and opengapps installed on LG G4 h811 usa tmobile and then I tried flashing supersu (latest version) and it comes back saying
installing zip file ' sdcard/update-supersu-v2.46.zip'
checking for md5 file....
skipping md5 checkL no md5 file found
verifying zip signature.....
supersu installer
-mounting/system, /date and rootfs
zip signature verified successfully
-extracting files
-disabling ota survival
-Removing old files
-creating spcae
-placing files
-restoring files
-post installation script
-unmounting /system and /data
-done
updating partition details....
..... done
and then when i reboot it just stays on cyanogenmod logo and don't reboot. I have to restore before installing supersu. What am I doing wrong?

disable android signature verification android pie

is there anyway to disable signature verification on android 9
thanks

SM-T819 - Installation problem

Hallo, I hope someone in this forum can help me with a problem with my SM-T819 TWRP.
I tried to install a CustomRom without making a back-up copy and apparently I removed all details on the tablet.
The installation of TWRP was succesful, however all my recent trials to install a CustomRom failed with the following comments:
Updating partition details….
…done
Full SELinux support is present
MTP enabled
Installing zip file `/sdcard1/lineage-16.0-20181203_161503-Unofficial-gts210velte.zip`
Checking for digest file...
Updater process ended with ERROR: 7
Error installing zip file `/sdcard1/lineage-16.0-20181203_161503-Unofficial-gts210velte.zip`
Updating partition details…
…done
installing zip file `/ sdcard1/lineage-16.0-20181203_161503-Unofficial-gts210velte.zip`
Checking for digest file...
Warning: No file_contexts
Comparing TZ version TZ.BF.3.0.3-00054 to TZ.BF.3.0.3-00077
Comparing TZ version TZ.BF.3.0.3-00064 to TZ.BF.3.0.3-00077
Comparing TZ version TZ.BF.3.0.3-00067 to TZ.BF.3.0.3-00077
Comparing TZ version TZ.BF.3.0.3-00071 to TZ.BF.3.0.3-00077
assert failed: samsung.verify_trustzone ("TZ.BF.3.0.3-00054", "TZ.BF.3.0.3-00044",
"TZ.BF.3.0.3-00067", "TZ.BF.3.0.3-00071") == "1"
Updater process ended with ERROR: 7
Error installing zip file `/sdcard1/lineage-16.0-20181203_161503-Unofficial-gts210velte.zip`
Updating partition details…
… done
I have done this trial with various TWRP and Lineage varieties but in vain and always with the identical error.
The only thing I could do was via TWRP the installation of “SMT819_Deodex_Debloated Custom Rom” (based on Stock-Samsung-Firmware.
I have also tried via Odin (several versions) to apply the original firmware. The installation proceeds without error, the tablet starts,
the progress is shown on the blue screen and every time it is cancelled after 25 % and 32%. Then the tab shuts down and starts again and remains in a continous loop with the splash screen.

Well, what is the reason to install a ... REALLY REALLY OLD version like this?
Try this https://lineageos.wickenberg.nu/gts210velte/ or that https://drive.google.com/drive/folders/1VsHc9-k4LA3-n19dp6Gkvqwf0GZLTRcA depending on what you want to have, LOS 16 or 17.1

Magisk 20.4 failed to install through TWRP 3.3.1-0 on Samsung Galaxy S7

My phone has the TWRP custom recovery and ive attempted to install magisk on my Samsung Galaxy S7 device but it came up with an error and failed to install. I cant send links yet but this is what it said:
Installing zip file '/sdcard/Magisk-v20.4.zip'
Checking for Digest file...
***********************
Magisk 20,l.4 Installer
***********************
- Mounting /system
- Target image: /dev/block/sda5
- Device platform: arm64
- Constructing environment
- Unpacking boot image
- Checking ramdisk status
! Boot image patched by unsupported programs
! Please restore back to stock boot image
- Unmounting partitions
Updater process ended with ERROR: 1
Error installing zip file '/sdcard/Magisk-v20.4.zip'
Updating partition details...
...done
Anyone got any ideas on how to help? I am pretty new to this so its likely ive missed a step somewhere but this is my 3rd time trying and ive made sure ive followed every step

https://www.didgeridoohan.com/magisk/Magisk#hn_Boot_image_patched_by_other_programs

U must flash the zip ". no-verity-opt-encrypt-6.0.zip" and then flash zip magisk