The console's plugged into a 2.1 amp wall adapter. Might be too weak?

Might have to use a compatible USB, the one your using might be drawing too much power. But if it shows the PE screen..hmm. What is the console plugged into? The PSC needs 2 to 3 amps to function.

As for the OTG adapter, you need to install the kernel to get OTG working. But first need to boot into Eris properly.

I'm trying to install project Eris, (usb in the controller port) when I boot up the PS I get the Project Eris screen but the power light starts flashing red and the console dies. I have an OTG adapter but when I plug the usb into it I don't get the Project Eris screen and it just boots up as normal. Does anyone know how to get around this?

Project Eris Flashing Red Light