CH341A and W25Q128BV

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  • Gabriel
    Badcaps Veteran
    • Jan 2010
    • 620
    • Norway
    #1

    CH341A and W25Q128BV

    I have a dead msi bord that needs to be flashed, board has spi connector below the W25Q128BV wson and I'm looking to buy a CH341A but I'm unsure if I should buy the simplest or the latest version. Latest version has the isp connector that I can hook up to the spi connector on mb.

    Should the mb be powered by atx when flashing or am I way off ?
    Attached Files
    Tags: None
    • stj
      Great Sage 齊天大聖
      • Dec 2009
      • 30944
      • Albion
      #2
      Re: CH341A and W25Q128BV

      the cheap black programmer can do that,
      but make sure that connector in the foto is actually linked to the flash and not for something else.

        Comment

        • Gabriel
          Badcaps Veteran
          • Jan 2010
          • 620
          • Norway
          #3
          Re: CH341A and W25Q128BV

          It's hooked up to the W25Q128BV alright, every pin but wson pin3 write protect IO2 so I guess perhaps the mb is setup for standard and dual spi instructions.
          Attached Files

            Comment

            • stj
              Great Sage 齊天大聖
              • Dec 2009
              • 30944
              • Albion
              #4
              Re: CH341A and W25Q128BV

              no issues then.
              i happen to have a black programmer in my hand.
              the connector pinout is this:

              1 - CLK
              2 - CS
              3 - MOSI (DI)
              4 - MISO (DO)
              5 - GND
              6 - 3V3
              7 - 5V

              so you just need the first 5 pins - power the motherboard before you flash it.
              Last edited by stj; 08-02-2016, 02:14 PM.

                Comment

                • Gabriel
                  Badcaps Veteran
                  • Jan 2010
                  • 620
                  • Norway
                  #5
                  Re: CH341A and W25Q128BV

                  Ahh thanks, why should I power the mb before I flash it ?

                  Should the atx psu be connected or turned on before I flash it ?

                    Comment

                    • stj
                      Great Sage 齊天大聖
                      • Dec 2009
                      • 30944
                      • Albion
                      #6
                      Re: CH341A and W25Q128BV

                      connected and turned on.
                      the flasher cant power the chip because it will be connected to a lot of other parts on the mobo.

                        Comment

                        • Gabriel
                          Badcaps Veteran
                          • Jan 2010
                          • 620
                          • Norway
                          #7
                          Re: CH341A and W25Q128BV

                          Had som spare time today to have a look at the mb - mb would not turn on and stay on. It kept restarting every 2-3 seconds so impossible to flash chip.

                          I removed the 0 ohm jumper and gave bios chip 3.3v from programmer, used sw 1.18 without problems.

                          Mb now working as it should
                          Attached Files

                            Comment

                            • mockingbird
                              Badcaps Legend
                              • Dec 2008
                              • 5484
                              • -
                              #8
                              Re: CH341A and W25Q128BV

                              Congratulations...

                              Had an SMD chip like that on an old ChuWi Vi8 tablet. For some reason, updating the video driver to Intel's latest overwrote the flash and bricked it.

                              Luckily, he included a blank adapter board where you could solder SMD chips on to, so flashing it took a little figuring out but ultimately it was a success. Dumping the chip confirmed that it was different from the BIOS that ChuWi sent.

                                Comment

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