Here's the story. My friend told me to downgrade his 2.60 PSP for him, so I took it home with me, forgetting to ask him if he bought it with 2.60 already installed. So about 45 minutes ago I copy the 2.60 > 1.50 downgrader folders and load up GTA. *memory stick action*.....*PSP turns off*. So I go to turn it back on, and I'm a little worried. Now the power button turns orange, and then green, alternating, and now it just stays green with no screen. HOLY SHHH... I scream. So I take the GTA disc out and have a peek at the motherboard...yep, it's a TA-082. I nearly pissed my pants at the sight of this. What on God's earth am I going to do?! So I devise this plan. Since I bought my PSP at Costco (with their lifetime warranty/replacement policy), what if I just do the old "switcharoo" and take his PSP back to Costco in exchange for a new one for myself? And then I give him my current PSP, which is in perfect condition with 1.50? So I took off his screen protector and my invisibleShield, and stuck his screen protector on my PSP, and it looked just like his, only slightly shinier. But as I took out my PSP box and looked at the serial number on the side, it didn't match up to the one on his psp, the bricked one...."oh crap", I thought. So this is where I'm asking you. Do you think Costco will actually check to see if the PSP and box serial numbers match up? If so, is there any specific method you would recommend of removing the serial number sticker to replace with my own PSP? Thanks in advance. I greatly need your help.