Android · Charging · Updated August 2026
You plug the charger in and nothing happens. Or the screen says “Charging” but the percentage never moves. Or the phone is dead at 0% and refuses to wake up at all.
Most of the time this is not a broken phone. The usual causes are compacted lint in the charging port, a cable that has failed internally, a crashed system charging process, or an app interfering with power management — and all four are fixable in a few minutes with no data loss. This guide first helps you tell a software or accessory problem apart from a genuine port fault, then works through the fixes in the order that solves things fastest.
⚡ Not Charging Right Now? Do These Three First
1. Shine a torch into the port. If you can see lint or debris, clean it out with a dry wooden toothpick before anything else.
2. Swap the cable and the adapter. Cables fail silently. Test with a different one plugged straight into a wall socket.
3. Restart while plugged in. Hold Power for 10 seconds with the charger connected. This clears a crashed charging process in about a minute.
First, Match Your Situation
Before you try anything, work out which of these two you are in. The fixes are completely different, and getting this right saves you from working through all eight.
Software or accessory problem
- Charged fine yesterday, then stopped suddenly
- Shows “Charging” but the percentage does not move
- Charges in Safe Mode but not normally
- Restarting restores charging for a while
- A different cable makes it work
Start with Fix 1, then Fix 2 and Fix 3.
Likely a port or battery fault
- The cable does not click in, or feels loose
- The port looks bent or corroded under a torch
- It fails on several known-good cables and adapters
- Wireless charging works but wired does not
- The port gets warm even when nothing is charging
Do Fix 1 to clean the port, then Fix 7. If those do not help, it needs a repair.
One test that splits the two: if your phone supports wireless charging, try it. If it charges wirelessly but not with a cable, the fault is in the port or the cable — not the battery and not Android.
What’s In This Guide
- Inspect and clean the charging port
- Test a different cable and adapter
- Restart the phone while plugged in
- Test in Safe Mode to rule out an app
- Revive a phone that is dead at 0%
- Clear the cache partition
- Check the battery health
- Factory reset — last resort
- Quick reference — all 8 fixes
- Symptom to fix map
- Why the cable matters by brand
- Mistakes that waste time
- When it really is the hardware
- The order to follow
- FAQ
The 8 Fixes
1Inspect and clean the charging port
DO THIS FIRST HIGH IMPACT 2 MIN NO DATA LOSS
Compacted pocket lint is the most common cause of a phone that will not charge, and the most frequently overlooked. When lint packs into the bottom of the port, the cable cannot reach the charging pins. The phone often registers that something is plugged in while receiving little or no power.
- Turn the phone off before you clean anything.
- Shine a torch into the port at an angle. Compacted lint looks like a grey or dark plug sitting at the bottom.
- Use a dry wooden toothpick. Insert it gently and scrape along the sides and the base to loosen the debris.
- Give it a short burst of compressed air to blow the loosened material out.
- Re-check with the torch. The pins should be visible and the port should look clear.
- Plug the charger back in. It should now seat firmly and click into place.
⚠ Never use metal — pins, needles and paperclips can bend or short the charging pins. Never use a cotton swab either; the fibres detach and make the blockage worse.
✅ Worked if: the charging indicator appears within about ten seconds and the percentage starts climbing.
2Test a different cable and adapter
HIGH IMPACT 5 MIN NO DATA LOSS
USB-C cables fail quietly. The outside looks perfect while the internal power wires have broken at the bend near the connector, so the cable still registers as connected but delivers too little power to charge. Cables also differ enormously in what they can carry.
- Try a completely different cable, ideally one rated for your phone’s charging standard.
- Try a different wall adapter as well — the adapter fails just as often as the cable.
- Plug directly into a wall socket, not an extension lead, a power strip, or a USB hub. Those can under-deliver voltage.
- Test the original cable on another device to confirm whether the cable itself is the problem.
🔵 Note: fast charging only starts if the cable and adapter both support your phone’s standard. A basic cable may charge so slowly that it looks like it is not charging at all.
✅ Worked if: it charges normally on a different cable or adapter. In that case the old accessory is faulty — replace it.
3Restart the phone while plugged in
HIGH IMPACT 2 MIN NO DATA LOSS
Android has a background process that manages power coming in from the charger. It can crash or get stuck after an app crash, a system update, or waking from deep sleep. The classic sign is a phone that says “Charging” on the lock screen for hours while the percentage never moves.
- Keep the charger plugged in for this entire process.
- Press and hold Power for about 10 seconds until the phone vibrates and restarts.
- On many Samsung and Xiaomi phones, hold Power + Volume Down instead if the normal restart does not respond.
- Once it reaches the lock screen, watch the charging indicator for the next minute.
🔵 If the screen is completely black and unresponsive, hold Power + Volume Down for about 15 seconds. That is a hardware-level restart and it works even when Android is frozen.
✅ Worked if: the percentage starts rising within a minute or two. If it charges now but stops again later, go to Fix 4.
4Test in Safe Mode to rule out an app
HIGH IMPACT 5 MIN NO DATA LOSS
Safe Mode runs Android with every third-party app disabled. It is the cleanest way to find out whether something you installed is interfering with charging — battery “optimiser” and calibration apps are the usual suspects, because they hold power-management permissions.
- Hold the Power button until the power menu appears.
- Long-press the Power off option — hold it, do not tap it.
- Tap Safe mode when it offers. The phone restarts with “Safe mode” shown in the corner.
- Plug the charger in and watch it for ten minutes.
- If it charges: reboot normally, then uninstall recently installed apps one at a time, testing after each.
- Also check
Settings → Apps → Special app access → Battery optimisationand restrict anything suspicious set to “Not optimised”.
✅ Worked if: it charges in Safe Mode and keeps charging normally once the offending app is removed. If it fails in Safe Mode too, the cause is deeper — continue to Fix 5.
5Revive a phone that is dead at 0%
SITUATIONAL 30–60 MIN NO DATA LOSS
A battery that has been fully flat for a while enters a deep-discharge protection state. The voltage is too low for normal charging, so the phone slowly trickle-charges first and the screen stays completely dark until there is enough power to light it. It looks broken, but usually it is not.
- Plug it into a known-good charger and cable, straight into a wall socket.
- Leave it completely alone for at least 30 minutes. Do not press anything.
- After 30 minutes, hold Power (or Power + Volume Down on Samsung and Xiaomi) for 10–15 seconds.
- Still nothing? Swap to a different cable and adapter and leave it for 2–3 hours.
- Once it powers on, charge it to 100% without using it. That also re-settles the battery gauge.
🔵 A dark screen while charging is normal here. The phone is taking power; it simply cannot light the display yet. Fifteen to forty-five minutes is typical.
✅ Worked if: a low-battery icon appears, or the phone vibrates, within about 45 minutes.
6Clear the cache partition
MEDIUM IMPACT 5 MIN NO DATA LOSS
The system cache holds temporary files Android uses to run. If it becomes corrupted — commonly after a failed update or an abrupt shutdown — it can cause odd behaviour including charging failures. Clearing it removes only those temporary files; your apps, photos and messages are untouched and Android rebuilds the cache on the next boot.
| Phone | How to reach it |
|---|---|
| Samsung Galaxy | Power off → hold Power + Volume Up until the logo → select Wipe cache partition → reboot |
| Google Pixel | Power off → hold Power + Volume Down for the bootloader → Recovery mode → hold Power and tap Volume Up → wipe cache |
| OnePlus | Power off → hold Power + Volume Up for Recovery → navigate with the volume keys → Wipe cache → reboot |
| Xiaomi / Redmi | Power off → hold Power + Volume Up for Recovery → Wipe cache → confirm → reboot |
🟠 In the recovery menu, only choose the cache option. Do not select anything that mentions wiping data or a factory reset unless you have deliberately decided to do that.
✅ Worked if: after the reboot (the first boot takes a few minutes longer than usual) charging resumes normally.
7Check the battery health
MEDIUM IMPACT 2 MIN NO DATA LOSS
A badly degraded battery loses the ability to accept a charge properly. When that happens the phone’s charging controller sees an abnormal response from the cells and reduces or stops charging as a safety measure. No software fix can change that — but identifying it saves you hours of pointless troubleshooting.
- Samsung: Settings → Battery and device care → Battery → Battery health. The Samsung Members app also has an interactive battery check.
- Google Pixel (Android 14 and later): Settings → Battery → Battery health.
- Other phones: look under Settings → Battery for a health or battery-care section; many manufacturers now include one.
- For a measured figure, a reputable battery-monitoring app can estimate real capacity against design capacity over a few charge cycles.
🔵 Note: if the phone still has warranty cover, get the battery checked through the manufacturer’s own service channel before paying anyone else.
✅ Answered if: the report says the battery needs replacing — that is your fix. If it reads healthy and charging still fails, continue to Fix 8.
8Factory reset — last resort
LAST RESORT 30 MIN
If nothing above has helped and the battery reads healthy, deep corruption in Android’s power management is the remaining software possibility. A factory reset returns the system to a clean state. It is the last software step before a repair is the only option left.
⚠ This erases everything on the phone. Back up first: Settings → System → Backup → Back up now, and check your photos have finished syncing.
- Back up, and make sure you know your Google account password — you will need it to sign back in.
- Go to
Settings → System → Reset options → Erase all data (factory reset). - After it restarts, test charging before restoring your apps, so nothing you reinstall can hide the result.
✅ Worked if: it charges normally on the clean system. If it still will not charge after a reset, the fault is physical — port or battery.
Quick Reference — All 8 Fixes
| # | Fix | Best for | Time |
|---|---|---|---|
| 1 | Clean the charging port | Loose cable, lint visible | 2 min |
| 2 | Different cable and adapter | Charges very slowly, or not at all | 5 min |
| 3 | Restart while plugged in | Says “Charging” but % does not move | 2 min |
| 4 | Safe Mode test | Started after installing an app | 5 min |
| 5 | Deep-discharge revival | Completely dead, will not power on | 30–60 min |
| 6 | Clear cache partition | Broke after a system update | 5 min |
| 7 | Check battery health | Old phone, drains fast, charges poorly | 2 min |
| 8 | Factory reset | Everything else failed | 30 min |
Symptom to Fix Map
| What you see | What it usually is | Go to |
|---|---|---|
| Cable feels loose, falls out | Lint packed into the port | Fix 1 |
| Says “Charging”, % never moves | Crashed charging process | Fix 3 |
| Charges only at certain cable angles | Broken cable or worn port | Fix 2, then Fix 1 |
| Charges but extremely slowly | Wrong cable or adapter for the standard | Fix 2 |
| Dead at 0%, no response at all | Deep-discharge protection | Fix 5 |
| Charges in Safe Mode only | An installed app is interfering | Fix 4 |
| Stopped right after an update | Corrupted system cache | Fix 6 |
| Wireless works, wired does not | Port fault | Fix 1, then repair |
| Jumps to 100%, then dies quickly | Worn-out battery | Fix 7 |
Why the Cable Matters More Than People Expect
“A USB-C cable is a USB-C cable” is one of the most expensive assumptions in phone troubleshooting. The connector is standard; what runs through it is not. A basic cable built for data can carry very little power, and if your phone needs to negotiate a fast-charging standard before it will draw current, the wrong cable can leave it barely charging — or not charging at all while still showing as connected.
The picture differs by brand. Google Pixel and most stock-Android phones use USB Power Delivery, so any properly certified PD charger works. Samsung uses its own adaptive fast-charging negotiation, so a charger that cannot speak it falls back to a trickle. OnePlus uses a proprietary system where the cable and the adapter must both support it, which is why a spare cable from another phone often charges a OnePlus painfully slowly. Xiaomi and Redmi behave similarly with their own fast-charge standard.
The practical rule is simple: keep the charger and cable that came with the phone as your reference set. When something goes wrong, test with those first, because a fault that only appears on a borrowed cable was never a phone fault to begin with.
Mistakes That Waste Time
Using something metal to clean the port. A pin or paperclip can bend the contacts and turn a two-minute cleaning job into a repair bill.
Buying a new battery before testing a different cable. The accessory fails far more often than the battery does, and it costs nothing to rule out.
Assuming the phone is dead because the screen stays black. A deeply discharged battery can take forty-five minutes before it shows any sign of life.
Installing a “battery repair” or calibration app. These cannot repair a battery, and several of them interfere with charging badly enough to cause the problem you are trying to fix.
Charging from a laptop port or a hub while troubleshooting. Those deliver far less power. Always test from a wall socket.
When It Really Is the Hardware
Most charging problems are lint, a cable, or software. Occasionally the phone genuinely needs a repair, and the signs are fairly clear once you know them.
The strongest indicator is a port that no longer holds the cable firmly after cleaning, or one that looks visibly bent or corroded under a torch. A port that gets warm when nothing is charging points to a short and should be looked at promptly. If wireless charging works while wired charging does not, that isolates the fault to the port almost conclusively. On the battery side, a phone that jumps from 100% to nothing in minutes, swells so the back panel or screen lifts, or reports poor health in its own diagnostic, needs a new battery.
⚠ A swollen battery is a safety issue. If the back cover is lifting or the screen is being pushed out, stop charging the phone and take it to a service centre. Do not try to open it or press it back down.
The Order to Follow
- Always start with the port — torch, toothpick, two minutes, no risk (Fix 1).
- Rule out the accessories — a different cable and adapter, straight into a wall socket (Fix 2).
- Says charging but nothing happens? Restart while plugged in (Fix 3).
- Started after installing something? Test in Safe Mode and remove the culprit (Fix 4).
- Completely dead? Give it 30 minutes untouched on a known-good charger (Fix 5).
- Broke right after an update? Clear the cache partition (Fix 6).
- Old phone behaving oddly? Check the battery health before anything drastic (Fix 7).
- Only then consider a factory reset (Fix 8) — and if that fails too, it is a repair.
FAQ
My phone says “Charging” but the percentage never increases. Why?
The system process that manages charging has usually crashed or stuck. Restart the phone while it stays plugged in (Fix 3). If it happens again later, an app is likely the trigger — test in Safe Mode (Fix 4).
Is it safe to clean the charging port myself?
Yes, with a dry wooden toothpick and the phone switched off. Never use metal, and never use a cotton swab — the fibres come off inside and make things worse.
Can an app really stop my phone from charging?
Yes. Apps holding battery or power-management permissions — particularly battery “optimisers” and calibration tools — can interrupt the charging process. Safe Mode tells you in ten minutes whether that is what is happening.
How do I know whether it is the port or a software problem?
Port signs: the cable will not click in, the port looks damaged, several good cables all fail, wireless charging works but wired does not. Software signs: it stopped suddenly, shows connected without charging, works in Safe Mode, or restarting helps temporarily.
Will any of these fixes delete my data?
Fixes 1 to 7 are completely safe — nothing is removed. Only Fix 8, the factory reset, erases the phone, and you should back up first.
My phone is completely dead. How long should I leave it charging?
At least 30 minutes untouched, and up to two or three hours if there is still no response. A deeply discharged battery trickle-charges with the screen dark before it can power the display.
Why has it started charging so much more slowly than before?
Usually the cable or adapter, not the phone. Fast charging only starts when both support your phone’s standard. A partly blocked port and a heavily worn battery can both slow it down too.
Does clearing the cache partition delete my photos or apps?
No. It only removes temporary system files, which Android rebuilds on the next boot. Just be careful to pick the cache option in the recovery menu and not a data wipe.
Related Fixes
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- Apps stuck too? Google Play Store Not Downloading Apps
- On iPhone instead? iPhone Won’t Turn On
- WiFi Connected But No Internet — 9 fixes
Charging again?
Tell us in the comments which fix did it and what phone you have — it helps the next person with the same model get to the right step faster. If a toothpick pulled a solid plug of lint out of your port, that one always surprises people.
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