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Guide to downgrade the PSP firmware to Official Firmware or to an older firmware version. Chronoswitch can be used to remove Infinity.
7 kwi 2019 · Download and extract the latest version from the releases on this github page. Copy the PSP folder from the extracted output to your memory stick. You will need the firmware update for version you wish to downgrade to. If you want to downgrade to 6.20, you will need the 6.20 official update.
[What does it do?] Allows users who are incontent with their firmware to downgrade to 6.20 using the Sony Updater. [How do I use it?] Copy the "PSP" folder to your PSP. The downgrader is "signed" and can be launched from OFW XMB. You need to copy the 6.20 update to PSP/GAME/UPDATE/EBOOT.PBP and for PSPgo it must be the eflash it is placed on.
Downgrade your 6.60 PSP to a lower firmware, and enjoy the world of Custom Firmwares! Compatible with All models of PSP (1000/2000/3000/Go) Important note : You also need to download the Official Firmware you want to downgrade to in addition to this download
you can still download 6.61 directly from Sony. but I'd recommend that you stay on 6.60. no harm in going with 6.61 though. https://archive.midnightchannel.net/SonyPS/Firmware/index.php?cat=PSP
20 sty 2015 · A quick update to the PSP 6.61 Downgrader is out. Developer qwikrazor87 has released a new version that now supports firmware 6.61 to 6.60 downgrading. Also for those with other model PSP's the downgrader is capable of downgrading any PSP to its base firmware version and tested till as low as 5.00.
10 lis 2019 · If your PSP is running an older version of Infinity, such as Infinity v1.0, then you will have to use the Chronoswitch Downgrader v7 to uninstall it and revert your device back to a clean system software 6.60 or 6.61.
