Navigate to the PSP folder, then open the GAME folder. Your path should look like this: Root->PSP->GAME . Extract the PRO-C2 zip file on your computer.
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Ensure your PSP is charged to at least 50% or plugged into the AC adapter [wikiHow]. Navigate to the PSP folder, then open the GAME folder
We are not responsible for any damage or issues that may arise from downloading and installing the Pro Update PSP 6.61. Proceed at your own risk. The PRO custom firmware (CFW) is the gold
The Ultimate Guide to PSP 6.61 PRO Update: Download, Installation, and Feature Guide
Alex had been keeping his PSP updated with the latest firmware, but he had heard rumors of a custom firmware, "Pro Update PSP 6.61," that would unlock new features and capabilities on his device. The problem was, he couldn't find a reliable source to download it from.