gerfex

hello there,
i have a problem with my psp 2001 (slim).....
i was playing before yesterday and it worked fine till the battery goes flat and i leave it charging. now i go to switch on my psp and there is no light at all. the power light just blink for a split of a second and thats it no power. i took off he battery and plug in the charger and try to switch on but still i had that blink light. i changed the battery to a modded one (pandoras battery) to see what happen and the same but with a little bit difference the power light start blinking every 2 seconds. i pluged the charger in with battery and the power light comes orange (amber) that means the battery is charging. i searched on gogle to see where is the power fuse and at this point i took off every thing and open apart the psp to reach the power fuse, i bridged it and make everything back but when i put the battery back and try to switch on still do the same thing. pls if some body can help me because im lost and confused.
thanks in advise