PSP 3.90m33-3 downgrade

[caver99]

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]

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.

 

[J]

http://www.digitalworldz.co.uk/index.php?resources/1742/

better off using this if u want 1.50

 

[Kryton]

http://www.digitalworldz.co.uk/index.php?resources/1742/

better off using this if u want 1.50

yep go with this as there is no working 1.50 recovery for 3.90 that i know of.