New PSP Custom Firmware v3.51 M33 !!!
you cant sorry , you either need custom firmware or 1.50 firmware to do the update
__________________ PSP Specs
Firmware: 3.52 M33-4
Motherboard: IC6001
CPU Speed: Default
Colour: White
Original FW: 2.61
Current HomeBrew: GBSP, Daedalus, UMDAX, PSXEmu 
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