SCENARIO - OnePlus 3t , OxygenOS 3.4.6 with Android 6.0.1 SuperSU rooted and dm-verity zip installed.
FIX: for stuck on the TWRP splash screen
https://forum.xda-developers.com/one...-3-3t-t3543391
Try this while stuck on the loading screen:
adb shell wipe_misc
adb shell reboot recovery
Some devices might somehow get a flag set in misc that tells the bootloader to ignore the android boot image command line. This results in the kernel not receiving the hardware name (qcom), which then confuses recovery and causes it to wait forever. FOREVER
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Use 3.0.4-1 for now, rather than the builds on twrp.me until an official release happens. You will have problems with 3.0.3 on Nougat!
For now, please download the build from:
Use 3.0.4-1 or higher https://build.nethunter.com/twrp/oneplus/
Officially 3.0.4 has not been released yet, but it has critical fixes for this device on Nougat, so please be patient.
There is a download link there, as well as instructions on how to flash it.
You can find up to date fastboot & adb binaries
here!