PSP 3.90m33-3 downgrade

caver99

Inactive User
Joined
Mar 28, 2005
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#1
I want to downgrade back to 1.50 but cant seem to find out how to do it or how to use therecovery mode, any help?
 

janobi

Janet to us
VIP Member
Joined
Jan 25, 2006
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#2
Remove battery and replace then hold R trigger down and turn on. Should go into recovery then. You might need to add the recovery file though before you can go back to 1.5 though.
 
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