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Your phone charges sometimes but not always. You have to hold the cable at a specific angle for it to work. The charging icon flickers on and off. This intermittent charging behaviour is a common fault with a range of possible causes, all of which Pro-Logic Technologies can resolve.
Why Charging Becomes Intermittent
- Worn or dirty charging port — daily use wears the port's contacts and allows lint and debris to accumulate, reducing reliable contact with the cable.
- Cable wear — the cable's connector tip degrades with repeated use, particularly at the strain points near the plug.
- Damaged port pins — the small pins or contacts inside the charging port can bend from force or wear, making contact unreliable.
- Solder joint fatigue — the charging port is soldered to the board; over time those solder joints can develop micro-cracks from repeated plug/unplug stress and mechanical flex.
- Damaged charging flex cable — on phones where the charging port is on a separate flex cable, that cable can develop faults from bending stress.
Step 1: Cable and Adapter Elimination
We substitute a known-good cable and adapter. If the charging becomes stable with a different cable, the fault is in your original cable and replacement is all that is needed. We advise on quality cables that will last.
Step 2: Port Cleaning
If the cable is not the issue, we clean the port thoroughly. Compacted lint is deceptively common and acts as an insulating layer between the cable and the port contacts, causing unreliable connection. Careful cleaning often resolves intermittent charging immediately.
Step 3: Port Replacement
Where the port contacts are worn or pins are bent, cleaning alone is insufficient. We replace the charging port entirely with a new component, restoring reliable, snug cable connection.
Step 4: Solder Joint Rework
Where solder joint fatigue on the board is identified as the cause through testing, our technicians reflow or replace the affected joints using micro-soldering equipment.
Intermittent charging is an early warning sign — ignore it and the port will fail completely. Visit Pro-Logic Technologies for a proper fix before that happens.
