Redmi 3 stuck on bootloop with no recovery mode access I have a Redmi 3 MIUI7 that I recently flashed with MIUI9 using TWRP. Right after flashing, I tried to boot it but it stuck on a bootloop. Since I haven't booted into the ROM and can't do so because of the bootloop, I have no access to enable USB Debugging AND TWRP recovery mode. No USB Debugging means the device will show as unauthorized when using adb devices, though I can Vol. Down+Power to get into Fastboot. I have flashed several ROMs before flashing to MIUI9 (Resurrect Remix and LineageOS, both Android Oreo and had root access). 

I just need way to boot into TWRP recovery mode to a) flash my way out of the loop b) restore a backup.
If you have access only to fastboot you will need complete ROM (including BOOTLOADER and FULL SYSTEM) because ota upgrade can broke custom bootloader