Phone not charging? Work through these four things first
6 August 2026 · PhoneTech
A phone that has stopped charging is usually one of four things, and only one of them needs a part. Working through them in order saves buying something you did not need.
1. Rule out the cable and adapter first
Cables fail far more often than ports do — they are flexed thousands of times. Try a different cable AND a different adapter before anything else. If another phone charges fine with the same cable, the cable is not your problem.
2. Clean the port
Pocket lint compacts into a solid plug at the bottom of a charging port and stops the connector seating fully. The tell-tale sign is a cable that feels loose or only charges at one angle. Power the phone off and use a wooden toothpick — never metal, and never compressed air, which drives debris further in. A surprising share of “dead port” phones are fixed at this step, for free.
3. Distinguish port from battery
If the phone charges intermittently, wiggles in and out of charging, or only charges when held at an angle, that points at the port or its flex cable. If it charges normally but drains unreasonably fast or shuts down at 30%, that is a battery symptom, not a port one.
4. The part itself
On most phones the charging port sits on a small daughterboard — often called a charging board, sub-board, or charging flex — that also carries the microphone and sometimes the headphone jack. That is deliberate on the manufacturer’s part: it is a wear item, so it is designed to be replaced without touching the mainboard. That also makes it one of the cheaper and lower-risk repairs.
It is still an internal repair: the phone has to be opened, and on most modern handsets that means heat, adhesive and ribbon connectors. Unless you have done it before, a repair shop fitting a part you supply is usually the sensible split.