How do you downgrade a custom firmware PSP to official firmware 1.5?

PSP Custom Firmware Problem?

  • Hi, Im new to PSP and I have a Custom Firmware (CFW). I was just wondering whether I need to downgrade my CFW to 1.5 using a certain application so I can upgrade to another higher CFW? For example, I have a CFW of 3.71 M33 and I want to obtain a CFW of 3.80 M33, do i need to downgrade the CFW to 1.5 so that I can obtain a CFW of 3.80 M33 or can I just download the update file and obtain the 3.80 M33 straight away? Also, do I need to downgrade my CFW to obtain a LOWER CFW using a certain application or can i download the update file and obtain a LOWER CFW straight away? For Example, I have a CFW of 3.71 M33 and I want to obtain a CFW of 3.51 M33, do I need to downgrade it using a certain application or can i download the update file and obtain the LOWER CFW straight away? Thank you for answering this question. I know its complicated but I'm still trying to get the hang of how the CFW works. Thank you once again. ( I think I repeated some words many times, my apology.)

  • Answer:

    unless you really need to do it then stick at 3.71 , 3.80 m33 isnt completely stables and can cause semi-bricks also , if you use the best app for psp ever made - IRShell- then dont upgrade , last i checked there isnt a compatible version yet. however, if you do want to upgrade to 3.80 m33 then just do it straight from the XMB (PSP dashboard) and you should be fine. should anything go wrong fulyl power your psp off, hold R and turn it back on and you will have a recovery menu , just run the recover option and your back in action

lwhyejoe at Yahoo! Answers Visit the source

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Other answers

no its ok if u repeat but once you upgrade you can not go lower and i really dont know why but my upgrade is 4.8 and trust me if you want to go lower on any upgrade it wont allow you

Charles S

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