First of all you posted in the wrong thread. And about the PCB, all of the circuit boards have writing on, but it only matters which side the writing is on. Open the UMD slot with the screen facing away from u, then look if it's on the left or right. Left: TA-079 (downgradeable)
Right: TA-082/TA-086 (undowngradeable)
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PSP LIFE: 1.52-->2.00-->1.50-->1.00-->2.00-->1.50-->2.00-->1.50-->2.71SE-B\"-->2.71SE-C-->2.00-->1.50--> 2.71 SE-C-->3.02OE-A-->3.02OE-B-->SEMI-BRICK (bsod)-->2.00-->1.50-->3.02OE-A-->3.02OE-B
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