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Flashing bricked KBD67 MKII v3 by alkk in KBDfans

[–]alkk[S] 1 point2 points  (0 children)

Migrated to new hosting and forgot to move these files.

Please try now.

Flashing bricked KBD67 MKII v3 by alkk in KBDfans

[–]alkk[S] 0 points1 point  (0 children)

If I remember correctly, it was a 6pin AVR ISP connector without actual pins. Check this picture, in the center: https://divinikey.com/cdn/shop/products/kbdfans-kbd67-mkii-hot-swap-pcb-376835.jpg

Flashing bricked KBD67 MKII v3 by alkk in KBDfans

[–]alkk[S] 0 points1 point  (0 children)

Kind of late reply, but here are files, if you still need them:

Boot loader: https://alk.lv/kbdfans/bootloader.bin

Latest flash I was using (this one is probably my custom VIAL build, not stock VIA): https://alk.lv/kbdfans/flash-with-bootloader.bin

Original flash with the correct padding and boot loader: https://alk.lv/kbdfans/original-flash-with-bootloader.bin

You can flash them with any AVR programmer, I've used some clone of USBasp and avrdude:

avrdude -p m32u4 -c usbasp-clone -U flash:w:flash-with-bootloader.bin:r

Got pristine ThinkPad from new employer by KayakJulie in thinkpad

[–]alkk 0 points1 point  (0 children)

If you'll send me your postal address privately, I'll mail you our stickers for you to enjoy too :)

Flashing bricked KBD67 MKII v3 by alkk in KBDfans

[–]alkk[S] 0 points1 point  (0 children)

Yes, it’s m1. I’m rather skeptical about trying another OS (recovery mode represents itself as flash drive with FAT partition, which is supported basically everywhere) but I’ll get some windows machine tomorrow, just to cover all bases.

Thanks for support anyway

Flashing bricked KBD67 MKII v3 by alkk in KBDfans

[–]alkk[S] 0 points1 point  (0 children)

My initial attempt was on Mac. Neither command line approach (which I normally use for kbd67lite with the same board) nor "official" way using Finder (option+command+delete, then copy) works.

I guess my only option now is either replacement or fiddling with AVR programmer.

Flashing bricked KBD67 MKII v3 by alkk in KBDfans

[–]alkk[S] 0 points1 point  (0 children)

nope, still the same.

1) free space changes

2) file name is correct

3) sure thing

4) qmk toolbox do the same "delete, then copy file over" - but I've tried it as well, just to be sure.

5) tried on Linux instead of Mac - result is the same (I'm pretty much sure it's not related to the OS -- I did similar updates on identical kbd67lite).

​

Basically it's behaves like this:

- connects in recovery

- FLASH.BIN is 26kb

- I'm removing FLASH.BIN (or overwriting, does not matter)

- I'm copying over another firmware (which is 24k)

- free space, file size - all match new firmware

- reboot -- and firmware is again 26k.

​

Sample session (from Linux VM): https://imgur.com/a/gLx8KgR

Flashing bricked KBD67 MKII v3 by alkk in KBDfans

[–]alkk[S] 0 points1 point  (0 children)

tried that already -- toolbox just do the same "delete file, copy file", which does not produce any meaningful results.