Flash memory defective

Discussion in 'Hardware troubles and Repair support.' started by cenaitas, Jan 21, 2022.

  1. cenaitas

    cenaitas New Member

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    Hi Johnny !

    i was told me that you are the best i ask you for help.
    i think that the flash memory is almost dad, i try a lot of things, but the results are bad.
    i try this
    flash-rescue /tmp/*.bin
    got this
    Fatal: Cannot access '/tmp/*.bin'
    i also try fdisk -lu /dev/mmcblk0
    and got fdisk: can't open '/dev/mmcblk0': Input/output error

    Fatal: Failed to partition disk
    Fatal: Failed to execute './recovery'

    can you please confirm/check my suspects?
    thank you in advanced
     
  2. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    Based on the information you've provided, it seems to me that it could indeed be caused by a faulty nand flash chip.... But, suppose there is a bad solder from/to the nand chip, or a bad connection, then it can also give this problem.
    So I think that it's better to check/inspect the I/O pins and dc voltage pins of the chip before thinking of replace it.
    That is, if it is a pin chip, one with solder balls will be difficult to measure.