Just upgraded from 0.111 to 0.112, after power off and restart, the red light of the Raspberry Pi has been on, it has been in this state for five hours now,
Among them, the power has been restarted, the problem is still there, it is connected to the hdmi display, the screen is in neon color, help me

Can you try another power supply?

It uses a 5V2A transformer power supply, and the screen shows a square neon after connecting to the TV.

Thank you very much for your help. I am currently trying this method. The Raspberry kernel.img file is broken. Find an sd card and re-burn it to replace the files in the card. Now it can be started normally, but the :8123 interface is still there. Not opened, it is estimated to be updated