PSP HELP - Upgrade from 3.03 0E-A to 3.90 M33? - HotUKDeals
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PSP HELP - Upgrade from 3.03 0E-A to 3.90 M33?

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Hi, just wondering what the best way to do this is, it is already running custom firmware 3.03 0E-A, but i want to upgrade it to 3.90 M33 so i can use it with my nice new PS3. How can i do it? Read More
peodude Avatar
9y, 1m agoPosted 9 years, 1 month ago
Hi, just wondering what the best way to do this is, it is already running custom firmware 3.03 0E-A, but i want to upgrade it to 3.90 M33 so i can use it with my nice new PS3.

How can i do it?
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peodude Avatar
9y, 1m agoPosted 9 years, 1 month ago
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(11) Jump to unreadPost a comment
Comments/page:
#1
only way I can think of is using a pandora battery! members on this site lend them out of free
#2
Just search on youtube for tutorial, don't think you need that battery.
#3
if you play one of the newer games, it will apply the UPDATE for you. EASY>>>
1 Like #4
i think you have to update in steps first 3.52m33 then 3.90m33 if not sure if you have to do another update in between the 3.52m33 and the 3.90m33 ive got the files somewhere if you have messenger i send them to you if you need them
#5
I have all the files from http://www.psp-hacks.com, it says upgrading to 3,90 M33 i need 3.52 M33, so is it safe to install straight from 3.03 0E-A to 3.52 M33 then, looks like i'll have to do that, cheers
#6
To go to 3.90 M33 you have to be on at least 3.52 M33-3 or higher . That means 3.52 M33 with update 3 installed
#7
i thought so, if you need any files let be know peo
#8
To be safe and to make sure all keys are rewritten correctly you need to downgrade back to 1.50 (use the recovery option for this). Then upgrade to 3.52 M33 followed by 3.90 M33.

Takes all of 20 minutes if the PSP is charged and ready to go. There are even "Easy Installers" for both of these versions.
#9
Radioactive.Toy
To be safe and to make sure all keys are rewritten correctly you need to downgrade back to 1.50 (use the recovery option for this). Then upgrade to 3.52 M33 followed by 3.90 M33.

Takes all of 20 minutes if the PSP is charged and ready to go. There are even "Easy Installers" for both of these versions.


Not true as when you are flashing custom firmware all keys are overwritten and a glaring mistake is the fact you have to be on 3.52 M33 - 3
#10
yeah thats true you might be better off making the files yourself in case my model is different from yours but my files have worked on all 3 of my psps
#11
Thanks for all your help, all done now :-D

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