To all the GBA Reballrepair neuro surgeons... expert question
My Macbook 1707 PMIC got hot. Removed the chip and the fifth pad from the bottom left (PP5V_S4) was carbonized (also the exact trace to this pad is not obvious). After carefully scraping the pad to expose some copper it shows a 0.3 ohm short.
I know this is a complex issue but what is the best way to deal with this?
Assuming ground is the top layer surrounding each pad, is the right way to deal with this to scrape away the ground top layer around this pad? If it's not the best way to deal with this, what do you recommend ?
Thanks for your guidance.