Custom firmware on psp slim help please?

Question

ok i wont to install custom firmware ive allready opend up my psp battery and cut the fourth little prong now to turn on my psp battery i have to plug in the charger when i try to turn it on regurly the green light comes on but the screen is just black but when i un plug the charger it works fine but anyway ive already cut the prong in the psp battery and now im stuck i have no clue what to do now i just wont to install custon firmware and be able to run homebrew please help me give me every single step to do it rite

Answer 1

turn off you psp fuly.. then turn it on while your pressig up.. that will do the trick! unless u didnt make a make a magic memery sitck