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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. After setup run the downgrader and follow the onscreen instructions.
This page will cover the usage of Chronoswitch to downgrade the PSP. It can be helpful in the following scenarios: Reverting to an older firmware (Eg. 6.61 to 6.60) Removing Infinity and/or custom firmware to revert to stock firmware; Removing Infinity v1 to install Infinity v2; Removing Infinity and/or custom firmware to install ARK-4 custom ...
7 kwi 2019 · Copy the official firmware update to PSP/GAME/UPDATE/EBOOT.PBP on your memory stick. If you're using a PSPgo, make sure this copied to the internal storage instead. The downgrader is "signed", and can be launched without having a custom firmware installed.
1 paź 2007 · This tutorial will guide you through the process of creating a "Pandora's Battery" and a "magic memory stick," which when used in conjunction can unbrick, restore, and downgrade any PSP firmware. Apart from TA-088 v3 units, the process works on all previous "Phat" and Slim PSP hardware revisions to date.
25 sie 2007 · PSP Unbricking/Downgrading Guide for all current hardware revisions. This guide will help you unbrick your PSP or downgrade your PSP from any version back down to 1.50 Requirements-. A homebrew enabled PSP in 100% working order. A bricked PSP or a PSP you wish to downgrade.
13 lis 2008 · Last week we posted about various ways to downgrade your firmware. Today we'll guide you through a method that works for nearly all PSP's, disregarding the current firmware. It even allows you to unbrick PSP's (people call a PSP bricked when it stops working due to software abnormalities).
Basically if you just drag that 'PSP' folder from within the download onto the ROOT of your memory stick, you should be good. From there, unplug your PSP and go into Games>Memory Stick on the XMB (Cross media browser). You should see an icon to update to 6.60.
