How to Fix a Phone That Won't Charge (Causes, Fixes & When to Replace the Charging Port)

You plug your phone in before bed, wake up in the morning, and it's still on 3%. Sound familiar? A phone that won't charge is one of the most common repair issues we see at Revive Birmingham — and the good news is, it's often fixable without replacing your entire device.

In this guide, we'll walk through every possible cause and fix, from the simplest checks to replacing the charging port yourself.

Step 1: Rule Out the Obvious First

Before assuming hardware failure, check these quick wins:

• Try a different cable — cables fray internally and fail without looking damaged
• Try a different charger/plug — the adapter may be faulty, not the phone
• Try a different power source — wall socket vs USB port on a laptop makes a big difference
• Restart your phone — a software glitch can sometimes prevent charging recognition
• Check for a software update — some charging bugs are fixed via OS updates

If none of these work, the issue is almost certainly hardware-related. Read on.

Step 2: Clean the Charging Port

This is the most overlooked fix — and it works surprisingly often. Lint, dust, and debris build up inside the charging port over time, preventing the cable from making a proper connection.

How to clean it safely:

• Power off your phone completely
• Use a wooden or plastic toothpick (never metal) to gently loosen compacted debris
• Use a can of compressed air to blow it out
• Shine a torch into the port — you should see clean metal contacts

Try charging again after cleaning. Many people find this alone solves the problem.

Step 3: Check for Physical Damage to the Port

Inspect the charging port closely with a torch. Look for:

• Bent or broken pins inside the port
• Corrosion (greenish or white residue — often from water exposure)
• A loose or wobbly port (the connector has detached from the board)
• Burn marks or discolouration

If you spot any of these, the port likely needs replacing.

Step 4: Test with Wireless Charging

If your phone supports wireless (Qi) charging, try it. If your phone charges wirelessly but not via cable, the charging port is almost certainly the problem. If it doesn't charge wirelessly either, the issue may be with the battery or the charging IC chip on the motherboard.

Step 5: Replace the Charging Port

If you've ruled everything else out, it's time to replace the charging port. This is a moderate-difficulty repair — more involved than a screen replacement, but very doable with the right parts and tools.

Browse our full range of Replacement Charging Ports — we stock flex cables for a wide range of iPhone and Android models including iPad, Samsung, and more.

What You'll Need

• Replacement charging port flex cable (model-specific)
• Precision screwdriver set (Pentalobe, Phillips, Tri-point)
• Plastic pry tools and spudgers
• Tweezers
• Heat gun or hairdryer
• T7000 or B7000 adhesive (if resealing)

General Replacement Steps

1. Power off your device completely
2. Remove the back panel or screen depending on your phone model (some phones access the port from the back, others require screen removal)
3. Disconnect the battery before touching any other connectors — this is critical for safety
4. Locate the charging port flex cable — it runs from the port up to the motherboard
5. Unscrew any brackets holding the flex in place and disconnect the cable connector
6. Remove the old port — it may be held with adhesive or screws
7. Install the new port, reconnect the flex cable, and replace all brackets and screws
8. Reconnect the battery and test charging before fully reassembling
9. Reseal and reassemble once confirmed working

Find the right replacement part for your device in our Replacement Charging Ports collection.

When Is It Not the Charging Port?

If you've replaced the port and the phone still won't charge, the issue may be:

• A swollen or dead battery — batteries lose capacity over time and may need replacing
• A faulty charging IC — a chip on the motherboard that manages power delivery; this requires microsoldering and is a job for a professional
• Water damage to the board — corrosion on the motherboard can affect charging circuits

In these cases, bring your device into Revive Birmingham for a professional diagnosis. Contact us here.

Frequently Asked Questions

How do I know if my charging port is broken or my battery?

If your phone charges wirelessly but not via cable, it's the port. If it doesn't charge either way and the battery is old, the battery is more likely the culprit.

How much does a charging port replacement cost?

DIY parts from our Replacement Charging Ports collection start from just a few pounds. Professional repairs vary by model — contact Revive Birmingham for a quote.

Can I fix a charging port myself?

Yes, on most Android phones. iPhones are more complex due to serialisation of components. If you're unsure, a professional repair is always the safer option.

How long does a charging port replacement take?

A professional repair typically takes 30–60 minutes. A DIY repair may take 1–2 hours for a first-timer.

My phone charges but only at a certain angle — is that the port?

Yes — this is a classic sign of a loose or damaged charging port connector. Clean it first, but if the problem persists, replacement is the fix.