my DDCSV 2.1 did not update any firmware

ytliu

You can manually copy the files in the u disk install directory to /mnt/nand1-1/ to complete the installation.

ytliu

https://www.facebook.com/groups/ ... k/2428415260508964/

ytliu

At the end of the system startup phase, there will be a delay of 3 seconds, then copy all files in /udisk-sda1/install/ to /mnt/nand1-1/.

If the automatic upgrade fails, there may be two reasons:
1. Before the copy, the system has not recognized the u disk (the different u disk mount time is not the same);
2. For the u disk without partition, the file system is mapped in /udisk-sda/ instead of /udisk-sda1, so it cannot be copied correctly.

If you can't upgrade with using diffrent u disks, then you connect to the serial port, baud rate 115200, ttl level, to analyze and solve the upgrade failure reason through HyperTerminal.

ytliu

r6mf49t2 Posted at 2018-10-4 03:21
ytliu, damp from serial port: https://yadi.sk/i/wNwqOtDo3g8OOw
what's wrong?

This problem may be caused by the u disk problem or the oxidation of the gold finger surface of the usb socket (poor contact). You can try another u disk, and check if the gold finger is oxidized.

ytliu

Yes, you can manually copy the files in the install directory to /mnt/nand1-1.

Since your controller cannot now automatically install firmware, you should be cautious and do not turn off the power during the copy process.