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Sorry again in the 1st post the log with SD was when I tried to botch the SD read so that it would give me a u-boot prompt. Here is the log with the SD and it hangs after this:

... continued, sorry for the mess up ... cmd_len has various values (seems to be 2 bytes) but no meaning in dec or hex. I also tried to botch the flash reading using this tutorial I hack, U-Boot According to the graphs, a good time to reset is between T0 + 3.3s and T0 + 5.1s I tried with...

Hi I bought this camera and they mandate the use of an app and the video stream goes to the cloud. That's a no-no to me so I'm trying to see if I can change the firmware to use it locally. It has a hi3518ev200 SoC with a 16MB flash, SD card reader, USB bus (but no plug, used to get the SD and...