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Cause you need to make you PSP Go To the lowest firmware (kinda like downgrade)

Then you can install you custom firmware

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16y ago

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I have 3.90 firmware installed on my psp slim how do i install a custom firmware like 3.90 M33 on it instead?

Get a pandoras battery and magic memory card...


Can some one explain in detail how to custom firmware a psp without bricking it?

Make or buy a pandoras battery


Can you get custom firmware if your psp is official firmware is 5.51 without Pandoras battery or any other device in other words how can i get it?

No, you can't. And even with a Pandora Battery, you cannot downgrade the 3000 or the late 2000 model.


How do you get a custom firmware for your PSP?

http://www.pspmod.com/forums/psp-hardware-guides/23428-guide-making-pandoras-battery-new-method.html


How do you get custom firmware for your psp?

http://www.pspmod.com/forums/psp-hardware-guides/23428-guide-making-pandoras-battery-new-method.html


Can a psp go on youtube?

no it cant with regular firmware . u need custom firmware. which then u need a pandoras battery and magic megory stick. so go to www.youtube.com/user/asianrappa


How do you know if you have custom firmware installed?

you won't be able to buy a psp with cfw on it. instead check out this Pandora battery and magic memory stick guide which will help you install cfw. http://www.pspmod.com/forums/psp-hardware-guides/28839-easy-use-pandoras-battery-guide.HTML


Can you install custom firmware on a psp running on 4.05 official firmware without using a Pandoras battery?

definitely no the best u can downgrade without a Pandora battery is 3.03.... what you can do is use the Pandora battery to downgrade and the results will be great I've done it on my psp and when i downgraded my psp i got to download as many games that can fit into my psp(full games of course) so downgrade your psp using a Pandora battery:)


How can i get custom firmware on my official sony firmware 5.51 slim psp without a pandoras battery using chickHEN R2 and hellcats recovery flasher?

You cant yet, We will have to wait for it to come out maybe late this year We shouldn't have upgraded to 5.51


You have 3.95 firmware on your PSP fat how do you install a custom firmware like 3.95 gen on it if you hadn't Pandora's battery and magic memory card?

u need magic memory stick and Pandora battery sorry i got same problem. What evera u do, do not attempt to make a pandoras batttery unless u have a spare battery cause u cant use Pandora to actually play da psp


Can you install custom firmware without pandora's battery?

You're in luck! There seems to be a homebrew enabler out for official firmware 5.03. http://www.youtube.com/watch?v=lPMiNTbL7YQ


Is there a Custom firmware for psp 6.20?

Right now there isn't. If you want to get custom firmware for psp version 6.20 you need to downgrade to custom firmware using a Pandora battery.