So I think we can relax and let the battery recharge for a few hours.
I can see the attraction of a Factory reset from TWRP. I am not certain if it will carry any risk if the “system” got corrupted somehow or edit if TWRP is a non-exact match.
Regarding PBRP, let’s get it on this page!
ENABLE OEM UNLOCK … on device is done, I believe.
Download PitchBlack Recovery flashable zip from
to your PC - I like that we see “a7y18lte” in the specification.
Extract the PBRP zip
Go to Download mode in your device
Flash the recovery.img by
heimdall flash --RECOVERY recovery.img
Boot into PBRP
All the above uses similar resources to what you did with TWRP.
Copy the zip to internal storage/sdcard