Never mind…I reinstalled USBasp driver and got it to work.
* original post*
I’m getting an error message when flashing a Convoy S2 Nanjg 1.4A AK 101 driver using Biscotti. I’ve successfully flashed a number of 105c’s and 105d’s so I assume the issue is that Biscotti is not compatible with the AK101. After flashing it the light won’t turn on (the led is good) so right now the light is little more than a paperweight 
Any suggestions on what to do? Any other software I can flash to get it working? If there aren’t any other options I’ll drop in another single sided driver.
Btw I bought this light in 2013 and they glued the driver to the retaining ring which made it a pain to take off. Also there are no notches on the pill so if the retaining ring is screwed into the pill and installed in the light then it’s hard to get the pill out, which perhaps is why it was glued. Filing some notches on the top of the pill would have made it easier to disassemble by far.
Thanks
C:\avrusb>avrdude -p t13 -c usbasp -u -Uflash:w:biscotti.hex:a -Ulfuse:w:0x75:m
-Uhfuse:w:0xFF:m
avrdude: warning: cannot set sck period. please check for usbasp firmware update
.
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.05s
avrdude: Device signature = 0x1e9007
avrdude: NOTE: “flash” memory has been specified, an erase cycle will be performed
To disable this feature, specify the -D option.
avrdude: erasing chip
avrdude: warning: cannot set sck period. please check for usbasp firmware update
.
avrdude: reading input file “biscotti.hex”
avrdude: input file biscotti.hex auto detected as Intel Hex
avrdude: writing flash (1024 bytes):
Writing | ################################################## | 100% 1.36s
avrdude: 1024 bytes of flash written
avrdude: verifying flash memory against biscotti.hex:
avrdude: load data flash data from input file biscotti.hex:
avrdude: input file biscotti.hex auto detected as Intel Hex
avrdude: input file biscotti.hex contains 1024 bytes
avrdude: reading on-chip flash data:
Reading | ################################################## | 100% 1.09s
avrdude: verifying …
avrdude: verification error, first mismatch at byte 0x0000
0x00 != 0x3d
avrdude: verification error; content mismatch
avrdude done. Thank you.