iPhone 5s stays at 1 percent battery and never charges up.
I have an iPhone 5s and I changed the entire dock connector part, because the jack connector was giving crackling noise when I would plug my headphones.
After that, the phone stopped charging.
So what I did is:
-Put a new battery in
-Put back the old dock connector part
-clean all connector and the motherboard with isopropanol 99%
Nothing solved the problem. The percentage is still stuck at 1% and the phone goes off 30 seconds after I unplug it, and when I plug it to my computer again, the screen stays stuck at the red battery screen, even after a few hours. However, the phone DOES get recognised by the computer. The only thing not working is the charging up.
The only way I can use my phone again is to put it in DFU mode and Restore.
What could be wrong in my case?
PS: Some screws are missing on my dock connector part, can that prevent things from working?
EDIT: this is what happens when I unplug the battery and connect the iPhone to my Mac:
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