BPI-W2 cant initialize SD card

Hello. My BPI-W2 cant initialize SD card. SD is not exist, regCARD_EXIST = 0x00 (CD flag is 0x04) SD: No card present initialize SD device at slot 0 failed sd - SD sub system

Could it be software problem, or this is hardware?

Probably a problem with SD.

I try 4 different SD card.

Have you checked if you are installing content correctly in SD?

Yeap. But it don’t detect it at all. Like no card at all

Maybe check the solder points and traces. You may need a Jewelers loop to see any cracks or breaks in the joints.