Okay guys so i have just today bought a PSP with firmware 2.71. When i checekd to see if it was TA or not it was TA b/c it has IC1003 written inside the UMD Case. Now i want to downgrade it with the TA - 082 Downgrader to Version 1.50 and then i will upgrade it to v3.03 OE. What i want to know is that is there any reliable and good guide on Downgrading a TA - 082 PSP and the upgrading it to 3.03 OE. Also is there any risk in doing this and will i brick my PSP in doing this since i don`t want to lose my PSP. I don`t have any UMD so do we need to have a UMD in the UMD case in order to play PSP Isos on PSP or to play PSP homebrew? My friend has said that we do need a UMD and i want to confirm it.