I search a bit and found PIC16F1704.hex but I dont know if this pic file will work because this pic file is dump from L3+ hashboard.

You can check the link below. If you are going to use this firmware to try make sure to backup or dump the original hex file first so that you can restore it in the future if didnt work.

- https://bitcointalk.org/index.php?topic=2383200.msg24343142#msg24343142