Chronoswitch Downgrader v7.0 2017-02-07

Beinhaltet die OFW 6.20 und 6.60 für die PSP Modelle 1000-3000 & E1000

Für die Go Modelle die EBOOT.PBP in PSP/GAME/UPDATE/EBOOT.PBP mit der OFW für die PSP GO ersetzen !!!!

Chronoswitch Downgrader

-> Added support for Infinity[VERSION 6.1]
-> Added support for 11g units to 6.60[VERSION 6]
-> Added support for 6.61 [VERSION 5]
-> Added support for 09g units to 6.20

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.
After setup run the downgrader and follow the onscreen instructions.

What does it technically do?
6.20-6.35: It uses the utility/power exploit to gain kernel access and reboots into the updater with a special PRX running.
This PRX uses the pspdecrypt functionality to decrypt the updater PRX when needed.
This allows the updater to boot in the newer firmwares.
6.38/6.39: It uses my http_storage exploit to gain kernel access.
Basically, http_storage has a vulnerability in it, where I can write -1 to anywhere in memory.
6.60: Uses sceNetMPulldown to gain kernel access.
6.61: same as 6.60 (only certloader kexploit is patched in 6.61)