device: Xiaomi Redmi 8a (olivelite), unlocked bootloader
i got that problem after this actions:
in twrp i formated
+)Dalvik cache
+)internal storage
+)Data
+)Cache
then i pressed "formate data" in twrp
then i pressed reboot to recovery button(i thought that was needed to apply changes)
now i have only acces to fastboot, adb doesnt work
power + volume buttons doesnt work
phone always boots to fastboot
after i got that problem i tried this: