Update Rooted Pixel 4 using OTA + Fix Backup Not Found [December]

It's update time for the Pixel 4 to the December security update! Today we'll be using the built-in OTA updater to update, and using Magisk Manager to keep our phone rooted after updating!

This will also show you the fix for restoring images when uninstalling Magisk. The error "Stock backup does not exist" occurs as Magisk Manager is unable to create the backup to that specific location as when you were patching a image to install Magisk, it had no permissions to write to "/data".

We will copy over our own backup and tell Magisk Manager to use that to restore our images, that will allow us to install the OTA update.

Remember to backup and ask questions!

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Intro Song:
AnthoIogy - ECO VIRTUAL Clear Skies
  / eco-virtual-clear-skies  

▼ Notice
Find updates to the video here, or for a written version of this video: TBW

▼ Requirements

Unlocked Bootloader
Magisk
MiXplorer (or other compatible file manager app)

▼ Timestamps

0:00 Intro
00:31 Fix Backup Does Not Exit with Magisk Manager
01:11 Attemping to Uninstall Magisk and Restore Images

01:42 [Downloads]

01:51 Information from Issues on Magisk Github Repo
02:32 Factory Image (for boot.img)
02:48 Checking your version of Android
03:28 File Manager
- I recommend MiXplorer (https://forum.xda-developers.com/show...)
03:50 Extract boot.img from Factory Image

04:54 [Creating the Backup]
05:12 MiXplorer Settings

For other file managers:
- Enable root access
- Enable view hidden folders & files

05:22 Compress boot.img using gzip (.gz)
- Name archive to "stock_boot_0.img.gz"

06:24 Copy stock_boot_0.img.gz to /data
06:54 Edit Magisk config to use our own backup
07:03 [MiXplorer] Enable Hidden files and folders

- Replace the value of SHA1 with "0"

07:47 Uninstall Magisk and Restore Images

[Update Preparation]
08:04 Disable modules that might not be compatible with the december update
08:37 Enable USB debugging and grant Authorisation!

[Update]
08:58 Installing the OTA
09:47 Do NOT reboot before reinstalling Magisk
10:21 Install Magisk to the Inactive Slot

11:10 Phone reboots

[Updated]
11:41 Check new build number
11:54 Check Magisk

12:07 Finishing Notes
12:59 Delete the backup we manually made

▼Links

⚠ YOU MUST ALSO INSTALL THE ARCHIVE ADDON! ⚠
https://play.google.com/store/apps/de...
https://labs.xda-developers.com/store...
https://www.apkmirror.com/apk/pishrod...

MiXplorer:
https://forum.xda-developers.com/show...
https://labs.xda-developers.com/store...
https://www.apkmirror.com/apk/pishrod...

Google Factory Images: http://bit.ly/1lULnwU

▼More links!

Website: https://squabbi.com/maowdroid
Twitter:   / squabbikong  
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Patreon:   / maowdroid  

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Thanks for watching!
Any questions? Ask them in the comments!