These are my YouTube Video tutorials for unlocking and rooting the Firestick 4K and using the ngrok Internet relay service to access your Firestick 4K (and other Android devices) remotely, without using port forwarding on the router.
Unlock and Root a Firestick 4K – Part 1
This is part 1 (of a 3-part series) and shows how to take the 4K apart and short the pins of the capacitor.
New 4K Firesticks cannot be unlocked, but if you are lucky enough to have one that can be, (probably bought before November 2020), do NOT setup any Amazon account on the Firestick or even boot the Firestick until you have followed the below process. If the Amazon software gets updated it will blow an eFuse and the Firestick can then never be unlocked or rooted.
Unlock and Root a Firestick 4K – Part 2
This is part 2 and it assumes you have already followed part 1 and have prepared the 4K to be bootloader unlocked (by removing the 4K casing and shorting the capacitor with some tin foil).
In this part 2 we will run the exploit to unlock the bootloader (in a customised Linux installation), root the 4K and disable Amazon OTA updates.
Unlock and Root a Firestick 4K – Part 3
This is part 3 and it assumes you have already followed parts 1 and 2 and have already rooted your Firestick 4K.
In this part 3 we will completely remove the Amazon Launcher (home screens).
There are also a couple of useful apps (a File Explorer and a replacement onscreen keyboard).
Finally, for fun there is a weather forecast app.
Unlock and Root a Firestick 4K – Create a Virtual Machine
This is an addition to my 3-part series on how to unlock the Firestick 4K bootloader, install TWRP and root the Firestick 4K.
This additional video shows how to use a virtual machine, instead of a bootable USB stick to run the exploit code.
The processes for running the exploit, rooting and all the other fixes are identical in the VM to when using a USB stick.
As it states in the video, the use of a virtual machine is unsupported by the good folks of xda.
However I have used it with no issues on every firestick I have unlocked.
Access a Firestick 4K Remotely Using ngrok
It is possible to remotely manage a Firestick 4K with ADB (and other Android devices) without using port forwarding on the router. This method uses the ngrok Internet relay service. I also have wrote instructions for doing this (for those that prefer not to use videos) here:
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