Hi, I replaced my battery but got the classic problem of my SP4 not turning on with or without charger. Battery was from ifixit. Prongs all in good shape underneath motherboard. I checked the diodes and they all seemed fine. I checked the fuses and they all seemed fine as well with DCPS. I checked the capacitor next to the IC chip when I have it plugged in and I’m reading 3.3V. I did notice next to the flash ROM chip that I’m getting 0 V. Any other suggestions? If it is replacing a chip, for someone that’s never done it before, what should I know? When plugged in the charging light does light up.