You see bootrom which is good,it just not find bl2…not sure what ec=3000 is,but imho it should be sdmmc.so either card is broken or bl2 is wrong here.
Could you try with other card working in your spare R4
So you mean you do not get this?
Wrong serial settings or a loose contact. The dupond plug must fit tight and snug on the pin. Just a bit loose you may get jibberish.
Good morning, I may not have explained myself well. I was reading the NAND to find out which kernel it was running, then it stopped and there’s no communication anymore. I have several SD cards, but the Scandisk I have on the other Banana Pi R4 works perfectly, both on the other Banana Pi R4 and on the Banana Pi R4 with 8GB of RAM.
What I mean is that it doesn’t even give that log; it’s not from that Banana Pi, it’s just an example.
I’ve tried it on the SD card, the NAND, and the eMMC since I also had an image saved on it, and it doesn’t work. The green and red lights stay on as soon as I turn it on, and the fan also spins.
I disassembled the other Banana Pi R4 and saw that the red light comes on first, then the green one, and it starts flashing, and then the blue one, and it starts flashing too.
In this case, it’s not like that.
But it’s not an SD card problem, it’s not a transformer problem, it’s just that it suddenly died.
But thanks for your help.