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Westinghouse DWM40F3G1 EEPROM

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    Westinghouse DWM40F3G1 EEPROM

    Hello, This will be my first post ..

    I need the EEPROM file for this set , I have the programing machine and blank EEproms I need just the file if you have it please help a guy out ..

    Thanks

    #2
    Re: Westinghouse DWM40F3G1 EEPROM

    If you can't find the bin file...
    If the tv won't turn on and you suspect the eeprom, Unplug the tv, Freeze the eeprom with cold spray, plug in the tv and try turning it on. If that works you can likely recover the eeprom data by removing the eeprom, place it in the programer, freeze the ic, and read it, the program a new ic.
    You could also just try reading the eeprom, then freeze it and see if the data changes, if it does use the copy after the freeze to progam a new ic.
    Also checking shopjimmy, there are 9 different eeproms for different main boards for this same model
    Last edited by R_J; 07-15-2019, 06:05 PM.

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      #3
      Hi
      Looking around for using freeze spray on EEPROM/BIOS there isn't much info.
      Can you tell if the freezing chip to -50 celsius will help me get a clean dump, or it will only improve readings but there will be still some mismatches with the original content? Also, would it introduce the risk of some data incorrectly read due to low temperature even if managed to get multiple identical dumps?
      The chip got damaged on VCC there is only 13ohm to GND, other pins appear to be fine.
      So far i played with separate power supply for the chip and programmer, using level shifter, tried soaking the chip into isopropyl.
      Normally there would be about 5KB differences between dumps, with VCC to chip dropping to 2.8V the amount of differences reduced to ~1500bytes and with using level shifter + chip in isopropyl in combination with the VCC mod best i could get was 1140bytes difference.

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