Need help w/ BPI-R4 4GB SD card image

Banana Pi Router design BPI-R4/BPI-R4 Pro(MT7988)
1

Im getting the below issue when booting up my BPI R4 and i read through some forum posts, it sounds like it is related to BL2 and FIP files needing to be overwritten with custom configs due to a hardware issue? either a dead CPU core? or something else im not 100% sure on the issue?

NOTICE:  BL2: v2.13.0(release):OpenWrt v2025.07.11~78a0dfd9-1 (mt7988-sdmmc-comb-4bg)
NOTICE:  BL2: Built : 09:15:21, Mar  4 2026
NOTICE:  WDT: Cold boot
NOTICE:  WDT: disabled
NOTICE:  CPU: MT7988
NOTICE:  EMI: DDR4 4BG mode
NOTICE:  EMI: Using DDR unknown settings
NOTICE:  EMI: Detected DRAM size: 0 MB
2

Moved into the right category and added code-tags.

This is the 8G image…do you have 4GB or 8GB RAM?

3

If you’re booting from an SD card, then you don’t need to worry about replacing the BL2 file. It’s likely a matter of the image size (4GB or 8GB). Since you have the 4GB version of R4, you’ll need to download the corresponding 4GB image.

If you’re worried it might be a DDR hardware issue, try booting from NAND and eMMC.