Black screens after downgrade

[steff1985]

Hi,

I have my psp with a TA-082+ motherboard witch comes with firmware 3.50, downgraded to 1.50 and
then upgraded to cf 3.40oe-a from dark alex. But now when i'm using the recovery menu or a umd dumper witch is
opened in a sort of Dos screen, everytime i press a key the screen goes black and after about 30 seconds the screen comes
back.

Is there something that could have go wrong with the down/up grade. Because i did the same thing with a older 2.80 psp
and with that psp everything works fine.

Please could someone give me a suggestion or the answer, sorry for my bad english

[alapaap25]

HI All,

I also encounter this problem from my newly bought PSP with TA-082+ motherboard, I just press the brightness button and It works after I downgrade to 1.5 ver.

alapaap25

[steff1985]

Thanks that worked for me too

[momo]

OMG...

I spent hours trying to figure that out...

I thought the NAND was corrupt!