Fix Go 7 stuck in bootloader

[Entropy159]

Hey everyone, this is my first time using this site, I signed up to get help with this. I recently got a Boox Go 7 and it's been great, and then a few days ago I rooted it using this guide: https://www.mobileread.com/forums/sh...0&postcount=53

It worked great, except for two issues:
1. When enabling Wi-Fi, it would crash and reboot. I "fixed" it by keeping Wi-Fi on during sleep.
2. It would also crash during power off. This one is weird because it doesn't actually cause problems (it's already shutting down anyways), but it took away the ability to set a power off image as it would just get stuck on the loading dots.

Seeing these issues and realizing I wasn't really using Magisk much, I decided to go back. Big mistake. Now it's stuck on the bootloader and I can't seem to get it out. I have tried re-flashing everything in the guide to no avail. Please help!