On 31 Mar 2004, at 21:00, Jeff Walther wrote:
I assume in the case you mention above that the chip in question was
one-time-programable, OTP? An EEPROM which was mis-flashed should have
been erasable unless the chip was destroyed, e.g. by applying the wrong
voltage to the wrong pin or something. I am a bit confused as to why you
had to replace the chip. Did your colleague install the chip backwards?
If I recall correctly it was a 128KB flash EPROM. It was probably damaged by interrupting the flash process but I'm not going to point fingers at a colleague ;-) There are tricks for recovering damaged flash EPROMs by removing the EPROM on a similar powered up live PC, inserting the damaged EPROM, cold booting and re-flashing. Scary stuff and it didn't work on that occasion.
I have even more distant memories of flashing Bootware/3Com ethernet boot ROMs. The flash process worked perfectly so long as you hadn't run Windows 3.1. Bill Gates's software killed four boot ROMs that day... Alas, we've moved miles off topic.
Phil
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