Updating 5 00 m33
Turn on your PSP while holding the right shoulder button to go into recovery mode).
If you have OE/M33 firmware greater than 4.01 M33 and less than 4.01 M33-2, please start from Section D.
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Step 2: (Downloading Files) - Download 5.50 GEN-A Here. - Extact all the Content's on your Desktop so you can locate it easily. - Once done your Psp Should now be on 5.50 GEN-A Firmware when you check the System Information in Settings/System Settings/System Information.
Step 3: (Transferring Files) - Open your downloaded 5.50 GEN-A file, click Game Folder and Copy the "Update" Folder inside your Psp path is Ms0:/Psp/Game - Unplug your Psp from your computer and Run the 5.50 GEN-A - Follow the provided Instruction carefully. - Now do a quick format again by running Settings/System Settings/Format Memory Stick (for safety reason.) - Plug back in your Psp to your computer using Usb cable or Memory Stick Adaptor - Open your downloaded 5.50 GEN-D3 file, copy the 550at the root of your Psp the path is Ms0:/ - Open your downloaded 5.50 GEN-D3 file, click on "Psp" Folder and click "Game" Folder, copy the "Update" Folder and paste it on your Psp the path is Ms0:/Psp/Game/ - Unplug your Psp from your computer and run the 5.50 GEN-D3 - You should be prompted on an sony official update.follow the right instructions and i wont have to remind your again that don't touch anything while its updating.