Unbricking Help Please

Hello guys my PSP is Fully Bricked (I think) and I need help to unbrick it.
So first thing to tell.
I have Custom Firmware on that PSP Version GEN D2.
So this is what happend.
I was playing on my PSP the game Pro Evolution Soccer 2010 after I turned of the PSP (not fully) I noticed the PSP froze when I turned it on again while ingame so I took out the Battery and put it in again and I the PSP started normally so I played PES 10 again and when I choose the Competition Mode it froze again so i took out the Battery again and put it in again and the PSP started normally.
This problem happend a few times and after 4 times taking out the Battery the PSP did not started normally when I put the Battery in.
In fact just the Green light is on and no screen no sound just nothing.

I think my PSP is fully bricked.
But I ofcourse I want to unbrick it.
The problem is I don't have a Pandora Battery and I live in The Netherlands and people sell it but it's too far away from me to get the Pandora Battery.
But I heard it's possible to unbrick a PSP without Pandora Battery all you need is another PSP with Custom Firmware. (It was Softmodding or something like that right?)
Is this true? If yes please send me a good tutorial to do it because I have a friend with Custom Firmware PSP.

Thanks Extreme,

Hey, sounds odd if you ask me, anyways, if you have CFW hold RTrigger on boot to get acsess to the recovery menu, activate USB get "Hellcat's Recovery flasher" and put that under ms0:/PSP/GAME/RECOVERY/eboot.pbp and run it that should get you back up and running if you have a semi brick. if you have a FULL brick you'll of course need a pandora battery, you can make one with another CFW'ed PSP OR buy one, you can get them REALLY cheap on the net take Dealextreme, they sell them for about $6 and with free shipping youll also need a MMS which could easily be made on a computer,

You can find loads of help on recovery flasher throught the forums

I reallly have a Fully Bricked PSP I already tryed to go into recovery menu but it doesnt work .
I want a tutorial to make a Pandora Battery with another CFW'ed PSP and to make a MMS please.
Oh and I can't buy stuff on the internet I don't have a paypal account or whatever im 14 .
So if there is a tutorial to softmod or whatever its called a Battery then please send me .
Thanks,

cast you eyes here this is a VERY in depth guide to make a MMS and battery via another CFW'ed psp, Hop it helps