Hello!
What's the error message you get?
If you can download it again and give it a try,may be incomplete download.
Before flashing Wipe Cache,Dalvik-Cache,system and flash the Rom followed by Magisk for root.
Hope it helps........
Cheers!
I am using the German instruction. When I try to reboot (step 7) I get an error but I disconnect power and reconnect & it does boot up to the Firestick setup screen. Then I try to install Magisk and get the below error. I can see the firestick folder on the computer.
:~$ adb install MagiskManager-v7.3.2.apk
Performing Push Install
adb: error: cannot stat 'MagiskManager-v7.3.2.apk': No such file or directory
:~$ adb install '/run/user/1000/gvfs/mtp:host=Amazon_Fire_G070L81882730JUB/Internal storage/MagiskManager-v7.3.2.apk'
Performing Push Install
/run/user/1000/gvfs/mtp:host=Amazon_Fi...ed. 4.8 MB/s (2840501 bytes in 0.565s)
pkg: /data/local/tmp/MagiskManager-v7.3.2.apk
Failure [INSTALL_FAILED_UPDATE_INCOMPATIBLE]
:~$ adb install '/home/Desktop/fire/aftv hacks/MagiskManager-v7.3.2.apk'
Performing Push Install
/home/Desktop/fire/aftv hacks/Magis...ed. 6.5 MB/s (2840501 bytes in 0.418s)
pkg: /data/local/tmp/MagiskManager-v7.3.2.apk
Failure [INSTALL_FAILED_UPDATE_INCOMPATIBLE]