Hi all I seem to have a quite regular issue. Suddenly my DS lite won't charge or power on. I bought a new battery, checked voltage with multimeter, says 3.5V and still won't charge or power on. I bought a new charger, absolutely no difference. I opened the DS and checked both fuses with multimeter, and they are fine. I tried plugging into different outlets, etc. What can I try to fix it now please ?