Debricking HooToo HT-TM01

I recently attempted to install OpenWrt's official image on my HooToo HT-TM01 router, which already had a custom build installed. Here's what I did:

Firstly, I copied the image file to the router's /tmp directory using the following command via SSH:

ssh root@ “cat > /tmp/openwrt-19.07.10-ramips-rt305x-ht-tm02-squashfs-sysupgrade.bin” <openwrt-19.07.10-ramips-rt305x-ht-tm02-squashfs-sysupgrade.bin

Next, I used the sysupgrade command to attempt the installation:

sysupgrade -v /tmp/openwrt-19.07.10-ramips-rt305x-ht-tm02-squashfs-sysupgrade.bin

However, after the installation process completed, my router rebooted automatically without displaying any message on the screen. Since then, I have been unable to connect to the router from my system, and resetting it has not resolved the issue.

Can anyone please help me troubleshoot this problem?