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afterdawn.com > forums > consoles > sony psp - mod and firmware discussion > quick help please slim 3.91 downgrade
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quick help please slim 3.91 downgrade
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voodooma
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28. June 2008 @ 20:26 _ Link to this message    Send private message to this user   
i have a phat psp modded firmware and i bought a slim psp it has 3.91 on it, can someone show me a guide or tell me how to downgrade the slim psp.
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28. June 2008 @ 20:37 _ Link to this message    Send private message to this user   
Use your modded phat to create a UPMS installer HERE
Then once created, use it in your modded phat to create a pandoras with your fat battery then place the mem stick in your slim and then the pandoras battery.



My PSP Life 1.00>1.50>2.70>2.71>1.50>3.52-M33>3.71M33-4>BRICKED>1.5>3.71M33-4>BRICKED>1.50>3.71M33-4>3.80M33-4>BRICKED>1.5>3.71M33-4 >3.80M33-5>3.90M33-2
http://darksiderg.com/
If you live in London ON,Canada and need to Pandora,PM me
INVENTORY:T-79 phat untouched/T-81 phat duel nub,trigger lights/T-85 black slim sound reactive trigger lights,umd swap external speaker,clear faceplate/2 T-85 Darth Vaders-haven't decided what to do next
voodooma
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28. June 2008 @ 20:42 _ Link to this message    Send private message to this user   
but just to be clear it will work on slim 3.90 psp and i can put a phat psp battery in a slim psp. thanks for the quick response
Senior Member
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28. June 2008 @ 20:49 _ Link to this message    Send private message to this user   
Yup. There are battery covers that let you use the phat battery in a slim for longer life. All my slims have one.



My PSP Life 1.00>1.50>2.70>2.71>1.50>3.52-M33>3.71M33-4>BRICKED>1.5>3.71M33-4>BRICKED>1.50>3.71M33-4>3.80M33-4>BRICKED>1.5>3.71M33-4 >3.80M33-5>3.90M33-2
http://darksiderg.com/
If you live in London ON,Canada and need to Pandora,PM me
INVENTORY:T-79 phat untouched/T-81 phat duel nub,trigger lights/T-85 black slim sound reactive trigger lights,umd swap external speaker,clear faceplate/2 T-85 Darth Vaders-haven't decided what to do next
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voodooma
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28. June 2008 @ 22:19 _ Link to this message    Send private message to this user   
ok i did the upms and pandora. i put mem stick in slim psp and held down l triger. i picked versin 4 to do 3.80mss everything checks ok except loading psar error reading 380pbp... what o i do
afterdawn.com > forums > consoles > sony psp - mod and firmware discussion > quick help please slim 3.91 downgrade
 

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