If the system cannot find the card, there are options to use an external hardware-based flasher. Some may clip onto the chip without needing to desolder the EEPROM flash chip, but depending on the chip and how it is programmed, it may need to he desoldered to program it. High voltage programming vs low voltage programming and whether a pin needs to be held high or low to enter programming mode, etc.
There is plenty to learn on the subject.
post edited by ty_ger07 - Friday, November 12, 2021 2:23 PM