A few days ago we were driving through Ukiah, and wanted to check out the local pawn shop. They had a digital lock box which was missing it’s keys and had an unknown code. I shook it and, it didn’t seem to have anything heavy inside, but it did sound like there were keys inside. I haggled with the salesman and bought it for $12 plus tax.
Tag Archives: EEPROM
Years ago I bought two 160GB Seagate external drives, then at some point I didn’t double check which power converter I was grabbing and the little 12vDC drive got a nice 18vDC over-voltage and it blew out the drive. The loss of the HD wasn’t a huge deal since it was empty at the time, but the USB to IDE converter was now curiously showing up in windows as a “Cypress AT2LP RC58”.
A lot of googling around led me to many sites where they suggested using dbflash.exe to restore the EEPROM, which was suggested to be corrupted. I tried, and the tool was successful in flashing the EEPROM, but for whatever reason now it wouldn’t even show up as a USB device in Windows or Linux! FAIL!
So, after some testing the boards, it seemed that nothing was blown, but the controller has suffered amnesia. I discovered that there was an EEPROM on the board which looked familiar. I removed the EEPROM from the still working unit and read out all the data to my computer, then flashed the failed drive’s EEPROM. After re-soldering everything, the unit came up as something different. I took out the IDE drive, and replaced it with another laying around, restarted it, and tada! We have a drive again.
Interesting to see that the over-voltage killed the hard drive, and blanked the EEPROM, but little else.
We decided to pick up a Zeno Acne Treatment system from eBay recently, due to very good sounding reviews. The device has a tip which heats up to a designated temperature, and you are to hold it to a trouble spot on your face for a few minutes while it counts down. This is all great, but the tips are meant to run out after 45 to 120 uses depending on the tip. Before we ran it completely I took did some searching around on the web, and supposedly there is a EEPROM inside. I carefully disassembled the tip and discovered a 24C01A EEPROM was in fact in there!