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Well it's possible, but first you'll need an old copy of grand theft auto:liberty city stories. From this select the firmware upgrade to 1.5, which isn't an upgrade at all. The psp will then downgrade to 1.5 from the 3.30. From there you can install the custom firmware which you desire.
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∙ 16y ago
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Can you upgrade a 5.50 psp 3000?
Of course you can upgrade it as long as there is an update. But why upgrade it?
Can you upgrade psp version 4.05?
yes
How do you get a kitchen in harvest moon boy and girl for psp?
Upgrade Your House ( Last Upgrade )
How do you upgrade PSP firmware from 5.50 to 6.35?
vutaw
How can you get Skype on your PSP?
In order to get skype you need to upgrade your psp to at least 3.90(only for slim). The other psp I'm not sure of.
Your system software is 5.55 how to update 6.10?
To upgrade a PSP system software of 5.55 to 6.10, first download an upgrade to the computer. Then pass the upgrade to the PSP, using Settings, with the use of a USB cable or memory stick.
You have PSP cfw 3.71 on your PSP is there any way to convert to PSP ofw 3.71?
what you need to do is downgrade then upgrade to the official firmware -- Erm, why would you WANT ofw? The POINT of CFW is that your PSP is free of Sony. I say, upgrade ur CFW to 5.00 m33.. -RLcTstealth
How do you upgrade your psp 3000 version 6.60 to 5.50 GEN-D3?
6.60 is already an upgrade from 5.50.
How do you upgrade your psp 3000 version 6.60 to 5.50 GEN D3?
6.60 is already an upgrade from 5.50.
Will you lose data if you upgrade your psp?
No you will not lose any data
How do you delete the system update from your memory card for psp?
If you connect your PSP to your PC with a USB cable, you can manually delete the upgrade installer from your memory card. This is not to be confused with downgrading the PSP firmware itself. Once you run an upgrade, the PSP's firmware is flashed and upgraded, deleting the update file won't do anything about that.
How the proper modify psp slim vesion 5.01?
upgrade your psp to 5.03 then get chickHEN R2 which will modify your psp. then go to http://pspslimhacks.com/ it will help you alot
