@Clive_A I'm fine to go ahead with debug firmware. Yes the card is readable on a computer. In fact, I noticed that even though the camera failed to initialize the SD card after format, but I saw the...

For your info, the card that i'm using is Sandisk 256GB Ultra U1 (Red and grey), which is tested according to the guide that you have posted. I know it sounds surreal but that is what i'm...

Recently I bought three units of Vigi C540-W camera with 256GB Sandisk Ultra Micro SD cards. When I install the SD cards and try to format it, it failed and resulted in the SD cards unable to...