1. ddevault

    OP ddevault Newbie
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    I've seen a few threads about this, but it's been a while since they've been updated. Here's what's happening, and what I've tried to fix it.

    When I boot up my GameBoy Color, "EZ-FLASH" is displayed, then "LOADING...", and finally "Micro SD initial error!" My GameBoy has model no. "CGB-001" written on the back. I have also tried with my GameBoy Advance SP, model no. "AGS-001", with the same results.

    I have tried:

    • Three different microSD cards - two SanDisk 8G, and one SanDisk "Ultra Plus" 16G.
    • Formatting as FAT32, FAT32 with a 32-bit sector size, exFAT, exFAT with a 32-bit sector size, and I have tried all of these combinations both with and without a MBR partition on the microSD card.
    • Both the kernel which was recommended by the documentation which came with the product (2020-01-04), and the latest kernel (2020-03-10). I verified the SHA-1 sum of both kernel versions.

    I am using brand-new AA batteries.

    In one of the other threads I found, it said that the manufacturers had found a GameBoy motherboard which is able to reproduce this problem. Has there been any progress on this?
     
  2. EZ-Flash2

    EZ-Flash2 Official EZ-FLASH Stuff
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    if you gbasp also display the text. it is not the problem
     
  3. ddevault

    OP ddevault Newbie
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    Update: I must have missed some combination of filesystem, SD card, and console. I was able to get my GBA to boot it up with a specific configuration:
    • 16G SanDisk Ultra Plus
    • exFAT 32 w/32K sector size
    • GameBoy Advance: SP
    This works normally. I also applied a firmware update, and now the version screen shows firmware FW4 K1.04E.

    However, plugging the cartridge into my GBC still shows the same problem, even after the firmware update.
     
  4. EZ-Flash2

    EZ-Flash2 Official EZ-FLASH Stuff
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  5. ddevault

    OP ddevault Newbie
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    It works! Thank you for your help, and thank you for a great product!
     
  6. Narthe

    Narthe Newbie
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    Hello !
    i just bought my EZ Flash Jr. and was having the same issue as @ddevault . However the FW5 kernel still doesn't work for me.
    I'm using a microSDXC card, could this be an issue ? I also tried with the FW4 kernel and i have the same issue.
    I'm using brand new batteries.
    Should i check if my CGB model is CPU NON-SUFFIX ? What can i do ?
    Thank you.
     
  7. EZ-Flash2

    EZ-Flash2 Official EZ-FLASH Stuff
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    EZ-FLASH Junior only supports SDHC. 4GB-32GB.
     
  8. Narthe

    Narthe Newbie
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    I guessed this was the issue, thanks for confirming it !
     
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