I believe the transfer was successful, even if you got CRC Error, Try again.
See this discussion:
Thus, the error you’re getting is not an XMODEM error. The transfer really completed.
It just failed the CRC check that is implemented after that, because you’ve uploaded an incompatible image. I assume you used a (renamed) JH7100 image, rather than the JH7110 one.
Should you have used the JH7110 image and it failed, try the one from the release dated as my posts in that thread. That one definitely does work. If it’s the case old one works and current doesn’t, it would mean that the current one is broken. That’d be worth reporting if so.
As an alternative altogether, you can boot with the boot switches in sd position, then use u-boot to do the flashing. I cover how here:
Thanks, However, after reading the instructions, I do not think it will work as the current bootloader does not work. Booting from SD-card (with or without card in) I only get the following output on the serial port:
dwmci_s: Response Timeout.
BOOT fail,Error is 0xffffffff