I used TWRP 3.1.1-0 and TWRP 3.2.0 but I am always ending in a endless first booting. How long does it take normaly, 2 hours?
I have a factory reset Android 6.0.1 what did you use starting with?
Hi, i missed in your list the steps wipe cache, dalvik cache, sytem and data, you have to wipe them also. then take the TWRP3.2.0-0 https://dl.twrp.me/kminilte/, a pico open gapps package (for 8.0 still beta) with LOS 15+ eventually Magisk v14.0 (root) and all should be fine. the first boot usually takes about 5 - 7.5 mins. there's no ,,magic'' needed In case you wanna flash a newer modem you have to go back to to 3.1.1-1 because with the new ;;Oreo made'' 3.2.0-0 you'll get a failure. (even the combo TWRP 3.1.1-1, LOS14.1, pico gapps works) :fingers-crossed: