desperate, need help with psp please

There may be someway to perform a factory reset? though I wouldn't a clue how. Otherwise id say your out of luck, you should have done your research before playing around with the flash settings. Try researching how to rewrite the IPL or the NAND, but im sure to do that you would have had to back them up first. If you can get your PSP back onto official firmware you should be able to send it away to sony and theyll fix it.