StephensDev
I began removing the socketed chips, but ran into trouble with the very first one—a BIOS chip. Its pins were in rough shape and got badly damaged during removal. Unfortunately, this particular BIOS doesn't appear to be available online, so I'm hoping I can repair the pins just well enough to dump the contents and write a replacement.
The original chip is marked
JL27C256E/011750 JAPAN 10
. Despite the ugly repair job, I somehow managed to salvage it and successfully created backups of both BIOS chips:U77 and U78, using my TL866II Plus.
Thankfully, I learned a few things from that first attempt—the second EEPROM removal went much smoother, and the result looks a lot cleaner:
