March 25, 2022
1 flash – Incompatible micro SD Card
2 flashes – The Micro SD Card cannot be read
3 flashes – loader.bin not found •
4 flashes – loader.bin not launched •
5 flashes – start. elf is not found •
6 flashes – start. elf not launched •
7 flashes – kernel. img not found •
8 flashes: SDRAM not recognized. In this case, your SDRAM is probably damaged, or the boot code.