Other OS : https://www.balena.io/etcher/ - Can flash SDCards on Windows and MacOs (also has a linux install)
Download the correct image for your device. Probably named similar to openwrt-*-sysupgrade.img.gz.
Select the image.
Select your SDCard.
Flash the image.
However, I got the following SD/MNC error:
RomBOOT
AT91Bootstrap 3.9.3 (2022-04-16)
SDHC: fix in place for SAMA5D2 SoM VDDSDMMC over-consumption errata
SD/MMC: Image: Read file u-boot.bin to 0x23f00000
MMC: ADMA supported
SDHC: Error: No Card Inserted
*** FATFS: f_open, filename: [u-boot.bin]: error
SD/MMC: Failed to load image
My device is working with v19.07.5 - Microchip(Atmel AT91) SAMA5D27 SOM1 Ek, but does not work with v21.02.3.
Do you know how to fix the issue?
Thanks in advance!
Yes, the balenaEtcher software :Decompressing, before Flashing, and Finishing.
The files are in the SD card. I think somehow the BOOT.bin does not detect the SD card.
I narrowed down the latest OpenWRT version that could detect the microSD card and the earliest OpenWRT version that failed to detect the microSD card - SDMMC1.
OpenWRT v19.07.9 is the latest version that could detect the microSD card.
OpenWRT v21.02.0 is the earliest version that could not detect the microSD card.
Could anyone find out the differences of bootstrap (BOOT.bin) and u-boot.bin bootloaders between the following versions:
AT91Bootstrap 3.8.10 and 3.9.3
U-Boot 2017.03 linux4Sam_5.8 and 2020.01
The issue was the AT19bootstrap and u-boot bootloaders configured with SDMMC1.
The solution is configuring the AT19bootstrap and u-boot bootloaders back to SDMMC0.