Rooting the 4K

Rooting The Firestick 4K

You need to enable root access to the 4K before you can follow instructions in other parts of this guide.
Without root you will not be able to block Amazon OTA updates or delete the Amazon Launcher (and add in an app to access the 4K settings).

These instructions assume you have already unlocked the bootloader on your 4K and installed TWRP. Also that you are using Windows and your 4K is booted into either the Amazon launcher or your own preferred launcher.
You can also do this from the Linux boot drive (substituting the Windows paths for Linux paths).

Download the following zip file to your computer/laptop.I save it directly in my D:\ drive.
You can use another location but in step 6 you must modify the command to the location you saved it to.
Magisk v20.4

Shut down your 4K by removing the USB cable from the power adapter.
Leave the other cables connected.
(unless you are using an OTG splitter. This needs to be removed).

Connect the USB cable to your computer/laptop.

When the 4K is booted fully, open a command window.

If using the ADB included with scrcpy type cd c:\scrcpy-win64
Press enter/return.

Boot TWRP Recovery by typing adb reboot recovery
Press enter/return.

If you did not save the zip file in step 1 to the root of a d:\ drive you need to modify the path to it below.
Type adb push d:\Magisk-v20.4.zip /sdcard/
Press enter/return

Type adb shell
Press enter/return.

Type twrp install /sdcard/Magisk-v20.4.zip
Press enter/return.

Type twrp wipe cache
Press enter/return.

Type twrp wipe dalvik
Press enter/return.

Type reboot -p
Press enter/return.

When the 4K is booted fully, open a command window.

If using the ADB included with scrcpy type cd c:\scrcpy-win64
Press enter/return.

Type adb shell
Press enter/return.

You need to be ready before you execute the next command
After you press enter/return a Superuser dialog box is going to appear.
You only have 10 seconds to respond to the Superuser request so make sure you have your remote to hand.
The dialog should already say Forever (make sure it does).
You need to use the down and right arrow keys on the remote and navigate to GRANT.
Then press the Select button on the remote.

Grant Root Access

Type su
Press enter/return.
Grant the forever access as detailed above.

Your Firestick 4K is now rooted.

Comments have now been disabled on all pages.
There is new a new forum.
If you would like to make a comment, give feedback or ask for help or advice, please join the forum and post there.
It requires me to approve the registration (which I will be quick to do), but once done you will have full access to post messages and attachments.
Thanks 🙂