Chuwi Hi13 - Looking for BIOS for Board 782R2 AP135 4/64G

Bricked the device by flashing the wrong BIOS version. Am now looking for the correct version to flash with a programmer. I have tried the following versions (flashing both 8MB bios and 128kb EC) already:
AP1V114_X64
AP1V116_X64
I2W6_AP135.037&EC_219
M1W6_AP135_201712061358.056&EC_APL_AP135_225.bin

Are they any others out there?

what is your serial number?

Not sure which one is the serial number, there is a number on the back:
Q64G45170902671
And two numbers on a sticker:
X905082-011
PL0042107545JP

Write to service@chuwi.com

I did, but I haven’t heard back.

Has anyone successfully recovered from this? I am wondering if one the versions I flashed is correct, but I have now damaged something with the wrong BIOS.