Hello my friends
I want to download version 6.47 to 6.42 on router board 1036
Who System>>>package>>>Downgade
But I have a problem, it won't restore
That is, the router is working reboot, but the version remains the same 6.47

After the reboot, check the log - it should explain what went wrong. I'd assume some package is missing in the 6.42 version which is enabled in the 6.47 one. Disabling that package (if safe!) before the downgrade should resolve the issue.

Also it is not possible to downgrade to a version earlier than the factory firmware. This may appear as the reason in the log, or check the Factory Firmware version under System > RouterBOARD to see what is installed.