General info on each key
* 0x4 - Baryon settings/information - extra data added in TA-085 Slim
* 0x5 - Clockgen/I2C setup commands - invalidating the first four bytes enables 1.50 to boot on TA-082+ by preventing an IPL crash due to unsupported hardware
* 0x6 - Battery, CPU frequency and general power settings - extra data added in TA-085 Slim
* 0x7 - Unknown usage (exists since TA-086 Fat/TA-085 Slim)
* 0x8 - Brightness hardware control (exists since TA-086 Fat/TA-085 Slim) - changed in PSP Slim (Baryon 0x0022B200 and 0x00234000) - if this is detected, the data in them is used to control the brightness levels. If not, the board acts as a TA-079 which causes brightness level issues with the new hardware.
* 0x10 - MagicGate
* 0x11 - MagicGate
* 0x12 - MagicGate
* 0x13 - MagicGate
* 0x40 - Contains the 0x5 bytes at 0x88 from key 0x10
All of the above are required for MagicGate to work
* 0x41 - USB (Driver type identifier) - slightly different in Slim TA-085
* 0x43 - USB (Device ID) - slightly different in Slim TA-085
* 0x44 - WLAN MAC Address (can be rebuilt using Noobz MAC Address Fixer)
* 0x45 - WLAN Region (can be rebuilt using KeyCleaner)
* 0x47 - Default parental lock level (first byte is 0x09, rest is empty)
* 0x50 - Serial number (not used since TA-082)
* 0x51 - Firmware the PSP shipped with, and some unique hash (exists since TA-086 Fat/TA-085 Slim)
* 0x52 - Unused by PSP - Mostly the same per PSP except for slight variations - could be manufacturing info (exists since TA-085 Slim)
* 0x54 - Default XMB background colour - first 3 bytes: 02 00 02 in PSP-200X IS, 02 00 00 in PSP-200X PB (exists since TA-085 Slim)
* 0x100 - DNAS, VSH & Internet browser region, ad-hoc region (if missing, official updaters cannot run - error CTA80000025)
* 0x101 - OpenPSID (non-indexed duplicate at [location of original + 0x8000])
* 0x102 - UMD (non-indexed duplicate at [location of original + 0x8000])
* 0x103 - UMD (non-indexed duplicate at [location of original + 0x8000])
* 0x104 - UMD (non-indexed duplicate at [location of original + 0x8000])
* 0x105 - UMD (non-indexed duplicate at [location of original + 0x8000])
* 0x106 - UMD (non-indexed duplicate at [location of original + 0x8000])
102-106 is a continuous key which the UMD drive uses. Any invalid ones (missing, edited, or from another PSP) will prevent the UMD sectors being decrypted, resulting in a Disc Read Error
* 0x120-0x126 - backup of respective 0x0100-106 key
* 0x140 - Some kind of unique ID, possibly KIRK related