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[Solved] Prowise PW-55v02 B.MSD309.33C 12365 Firmware Dump Request for 25Q32BS SPI Flash - Stuck in standby

debnie 327 6
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  • #1 21715408
    debnie
    Level 3  
    I have a defective Prowise PW-55v02, it is stuck in standby.
    The main control board is a B.MSD309.33C 12365.
    (Similar boards/chipsets are used in Blaupunkt TVs, I've found that the firmware could be the culprit)
    So I'm looking for a firmware dump of U9 25Q32BS (SPI Flash).

    I took a dump of the existing flash but some bits flip from time to time.

    The panel is a T420HVN01.1

    Does anybody has a working dump/firmware file

    Close-up of U9 integrated circuit on green PCB with visible traces and components.
    ?
    Information label on back of Prowise PW-55v02 monitor with electrical warnings

    Motherboard with multiple connectors, wires, and an aluminum heatsink
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  • #2 21720384
    debnie
    Level 3  
    So a little update, I've found online a dump of a "Seewo" TV with the same motherboard (attached).
    I programmed it in a new flash chip (winbond GD25Q32ESIG) and the Prowise boots but the colors are wrong, the image is upside down (and a little blurry).
    So probably the panels are not compatible. (The prowise has a LVDS frame rate conversion board PL.MS6M30.1B-1 11375)

    So still looking for the right firmware...
    Attachments:
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    #3 21720804
    badael
    Level 27  
    Post the original-faulty dump here for check-repair.
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  • #4 21720912
    debnie
    Level 3  
    Thanks for taking an interest, attached is the corrupt dump.
    I noticed between dumps, bit flips at the address 0x06ef1b.

    How can you check the corrupt dump?
    Attachments:
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  • #6 21722480
    debnie
    Level 3  
    I programmed the fixed original dump and tested it, the panel works again!
    Thanks for the effort!
    Screen displaying the Prowise logo on a light background
  • #7 21722483
    debnie
    Level 3  
    I programmed the "DIGIB_V3_OK.bin" in the SPI flash (fixed by badael).
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Topic summary

A Prowise PW-55v02 display with a B.MSD309.33C 12365 main control board is stuck in standby, suspected due to firmware corruption in the U9 25Q32BS SPI Flash. The panel used is a T420HVN01.1. An attempt to use firmware from a Seewo TV with the same motherboard on a Winbond GD25Q32ESIG flash chip resulted in booting but with incorrect colors and an upside-down, blurry image, likely due to panel incompatibility and the presence of an LVDS frame rate conversion board (PL.MS6M30.1B-1 11375). The original corrupted firmware dump showed bit flips at address 0x06ef1b. After posting the faulty dump, a corrected firmware image with cleaned NVM was provided, which restored full panel functionality when programmed back into the SPI flash. The fixed firmware file was named "DIGIB_V3_OK.bin."
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