Boot screen just a cursor after update

[lakerice]

Hi,

I am running a Raspberry Pi 3B with the official adapter for the latest power requirements (5.1v 3A) after updating and getting the undervoltage warning during boot (previously the rainbow displayed and undervoltage was detected but still booted). Now, it would not boot past undervoltage, so I got the proper power supply. Unfortunately, the undervoltage warning is gone but now the boot screen just shows the 4 raspberries and a blinking cursor. I have tried on different monitors and gotten the same thing.

I haven't found much help on the Pi forum, I did find one post where the person said to add vt.global_cursor_default=0 quiet

It could be found here

Anyway, it's a bizarre issue and sadly so hard to find anyone else who has had this problem.

Not sure if this helps, but here is a link to my cmdline.txt file:

https://pastebin.com/Y6WHLRkd

*Also of note, I had to get an adapter from C USB style to micro USB in order to make the adapter work with my Pi.

Thanks

[mitu]

Your cmdline.txt has an error - all options entered should be on a single line, your file looks like it contains 2 lines. Remove the 2nd line from the file and remove also the quiet parameter, this should print the boot messages while the system starts and maybe give you an indication where the system stops.

[lakerice]

@mitu Sorry for the late response. Thanks so much, unfortunately I tried that and the problem still persists. Is there a link to where I can get a new cmdline file?

[mitu]

The default cmdline.txt depends on your RetroPie and Raspbian version, what version of RetroPie are you using and which image did you use to install it ?