Following this blog: Getting Started with BPI-R3 MINI - Banana Pi Wiki
I did flashed NAND FW version. And now boot-loader is showing below.
System halt!
Is the nand defined as boot-device (switches)? This messages comes when the selected bootdevice does not contain the brom header (boot_nand or boot_emmc). Can you boot the other device (emmc) to check content of nand (first bytes)? Have you unpacked the image and wrote the right bl2 (there is a img and a bin)
I used BPI-R3MINI-OPENWRT-V21.02.3 github repo, to build the OS. I tried TFTP method and upload was very slow so was getting timed-out. Then tried to flash based on this link.
You can only boot again from emmc and try flashing nand again…but only if you do not get an timeout…but it should be possible to load the files to usb and load from it to flash
I do not have a r3mini so i cannot test this.
I tried your suggestion of checking FW start bytes. And FW from their gDrive links has below
I modified the same in my OpenWRT build but didn’t work
Not changing the built image…check it on the nand.
Or just copy the image on usb stick,boot from emmc and flash the image from usb to nand (uncompress first)