Cannot change System packages from version 7.1beta6

Hi All,

Recently I’ve changed my system packages of RB2011 to v7.1beta6. But lately, I have had some issues with my EOIP tunnel, so decided to change back to the latest stable version 6.48.2.
But, after downloading the packages and rebooting the router, the system package stays in the same version, which is 7.1beta6. with a log error “system,error,critical kernel failure in previous boot”. Couldn’t netinstall the router as it’s not ether booting from the PC.
Is there any other way to try?

Thanks in advance.

Find the way to use netinstall on your PC.

Tried to netinstall via the reset button as well as via console connection. My PC is not detected during the ether boot. Tried in exactly same way as the manual suggested. Tried with multiple ports as well apart from Ether1 for RB2011.

But, I can factory reset the router by pressing the reset button.
Don't know what's causing the issue.