v3.03 Downgrader

کد:
After much work over the past few days, we finally succeeded - we have an easy-to-use downgrader 

for v3.03 PSPs! 

Some ground-rules: 

This downgrader is for v3.03 firmware only. But if you have v2.81 - v3.02, no problem - you can just 

upgrade to v3.03 to use the downgrader. 
You need a copy of the unpatched GTA:Liberty City Stories UMD. No ISOs, no patched UMDs, not Vice City 

Stories. See here for some info on how to check if your version is patched. The most reliable way : the 

unpatched disks have the v2.0 firmware update on them. 
This downgrader is intended to enable homebrew. Homebrew is NOT the same as piracy. Don't be a 

thieving loser - buy the games you play. 
The downgrader will work on all current PSP hardware (TA-079 - TA-086). Patching of TA-082+ is 

automatic in the downgrader. 
You downgrade at your own risk. There is always a chance of bricking, although we have done everything 

we can think of to make this process safe. 
Full instructions for downgrading are included in the Downgrader_HOWTO.txt file in the ZIP file. Read them 

carefully! You will need: 

The 3.03 downgrader package
hxxp://www.noobz.eu/download.html
Official v1.50 Firmware Update EBOOT
hxxp://dl.qj.net/PSP-Firmware-1.50-File-(EBOOT)-North-America-PSP/pg/12/fid/163/catid/163
Official v3.03 Firmware Update EBOOT (only if your PSP is not 3.03 already)
hxxp://dl.qj.net/PSP-Firmware-3.03-PSP/pg/12/fid/11844/catid/163

Enjoy! You can get support for any problems at the PSPUpdates forum. 

Remember to check out the PSP Homebrew Database for information on homebrew that can be run on your 

newly-downgraded PSP! 

Warning: After downgrading from 3.03 to 1.5, there are some remnants of 3.03 left in flash. If you later try 

to re-upgrade to 3.03 and repeat the downgrade, things will break. At some later point, we will work on a 

cleaner that will remove these extra files. Until then, enjoy! (Don't worry, upgrading to 3.03 OE firmwares 

still works fine).

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