Help!!!

[PSXandMobile]

I also have problem with bran new ps2 90004. When I put the modchip (first it was Matrix infinity 1.88, clone) lens was worked normally but the games stay on black screen. I re solder it and mount new modbo 735, lens was again work normally but game is not starting. After few retry s with or without modcip lens is stuck in upper position and it continues to lite red until I unplugged from power. I changed the laser but problem remains, (wiht modchip) i got the logo Play Station 2 but black screen remains. I check every possible way but no result.
Please if anybody have some solution or what to do please help!!