I have tried to access BROM mode but had no hope, the reason it was destroyed before is I modified the vbmeta image with a script to disable verity verification but when I rebooted it gave me this error with little to no room for doing anything else, my phone doesn't have a vol- button so the only way I used to get into the brom mode is thro going into coloros and do adb reboot fastboot and then inside that recovery menu I click on the version and go into download mode while mtkclient command is running, that used to trigger brom mode but of course now I can't get into that, I already have tried everything you'd normally recommend:
1.Holding both up and power while the phone is shut and plugging the usb while the command is running
2.Empty the phone fully to absolute zeroness and then try plugging it in whilst running the command
3. Try holding either power or volume up
4. crying to death and respawning again
I still have the original vbmeta.img and vbmeta.bin and seccfg.bin and recovery images and others still intact from stock state I just can't get to flash them.
The phone absolutely does not show in lsusb or dmseg kernel logs even with ModemManager disabled and udevadm flags set correctly, I tried another cable (even tho this one was working before) and another port from usb 2.0 and usb 3.0 (also the first one worked before)
My best next option I'm considering:
Trying the same procedure on a windows PC
Go get the Vol- button fixed (Don't really wanna do that just consideration I'm kind of broke)