Huawei P20 EML-L29 when boots shows green light with 2 boxes after flashing OEMinfo - Android Q&A, Help & Troubleshooting

HI guys!
I was trying to flash P20 EML-L29 it had firmware CHIPSET-BOSTON 8.0.-something
I pulled out OEMinfo file from other stock firmware and flashed it using TWRP
When I rebooted the phone I got a green light on whole screen with 2 boxes one of em is red other is blue (i dunno whats that)
It was previously bootloader unlocked and had no FRP but after flashing OEM file, it locked every thang
I cant unlock it i used to unlock bootloaders using MRT-DONGLE but now its not working with this brick and the same thing about FRP
Does anybody know how can I Unbrick that phone please HELPPPP!!!!
it does boot into Erecovery and stock recovery! NO USE!
It lost TWRP(

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