UpdateHere is a sheet that may help.
Feel free to update!
Compatible Micro SD Cardshttps://docs.google.com/spreadsheets/d/1LwisiZo8DoQIoqZyy-GHAoSDJC9oh8Q1j9rxrARlKDw/edit?usp=sharingUpdated GBA OS 1.03 should fix this issue!!!!!!!!!!!!http://krikzz.com/forum/index.php?topic=5528.0Quote from Krikzz about latest updateSeems like problem fixed, now all should work fine. OS v1.03 in pair with bootloader v1.02 should fix problem with sd cards. Well, let try it (:
OS 1.03: http://krikzz.com/pub/support/everdrive-gba/OS/GBAOS-v1.03.zip
booloader update 1.02: http://krikzz.com/pub/support/everdrive-gba/bootloader/
Bootloader update 1.02 notes:
This update required only for users who has problems with sd cards compatibility (SDIO and FAT errors)
Do not install this update if you already have bootloader 1.02 or higher version. Turn on your cart without SD cart to check bootloader version. Version shown on the top of the screen (EverDrive-GBA bootloader v1.xx)
Instalation instructions:
1. Load OS v1.03 or newer on SD card
2. Copy boot-v1.02.upd on root folder on SD card
3. Select boot-v1.02.upd file in cart menu and push "Update bootloader"
4. Reboot your system.
IMPORTANT: To install this update you will need SD card which already working properly with your everdrive-gba, or at least stable enough to boot OS. If you can not boot OS, then you can not install current update.
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I've just tried 2 brand new micro SD cards from Samsung (Samsung Memory 32 GB Evo MicroSDHC UHS-I Grade 1 Class 10 Memory Card):
https://www.amazon.co.uk/Samsung-Memory-MicroSDHC-UHS-I-Adapter/dp/B00J29BR3Y/I get various issues running games on the ED-GBA with these cards, pics below. Typically the first run is ok, then after a reboot I get these errors.
http://postimg.org/gallery/2cu1alidk/I just tried a Kingston 8GB Class 4, and its absolutely fine.
https://www.amazon.co.uk/Kingston-SDC4-8GBSP-Class-MicroSDHC/dp/B0027CA7UW/