Chosen Solution
My galaxy s4 died about a week ago… and when I went to plug it in as I do every night a grey battery showed up that I had never seen before. The next day I ordered a new sister board USB port. After I installed it charged right up and was working great! Until I realized that after two hours of not being on the charger the battery went down to 60%. finally I realized My signal was at one bar and on edge service I don’t know what to do I’m stumped can you guys help me out thanks!!
Have you still the old part? There should be a REV number on it the new part should have the same number or it won’t work correctly
