A phone that stops charging properly immediately after a software update can look like the update damaged the battery or charging port.
That is usually not what happened.
More often, the update changes charging behavior, increases background activity, alters battery settings, or exposes an existing charger, cable, port, or battery problem.
The useful question is:
Does the phone fail to charge completely, or is it only charging more slowly than before?
That distinction matters.
First, Check What Changed
Before changing settings, note what the phone is actually doing.
Possible symptoms include:
- no charging at all;
- very slow charging;
- charging starts and stops;
- fast charging is missing;
- wireless charging stopped;
- charging pauses at a certain percentage;
- the phone gets unusually warm while charging.
Those symptoms do not all have the same cause.
1. Restart the Phone
Restart once after the update.
A major Android or iOS update can leave background services, app optimization, indexing, and battery-management processes running for a while.
Restarting reloads the charging and power-management services and can clear a temporary post-update glitch.
If charging returns to normal after the restart, the issue was probably temporary.
2. Give the Update Time to Finish Background Work
Post-update activity can make charging appear slower because the phone is using more power while it charges.
Google specifically notes that Pixel phones can use more battery than usual after a software update while the system finishes optimization.
Leave the phone connected to a compatible charger with the screen off for a while.
Avoid:
- gaming;
- video streaming;
- large downloads;
- restoring backups;
- heavy app updates.
If charging speed improves after background activity settles, the charger itself may be fine.
3. Check the Charger, Cable, and Wall Outlet
Do not assume the update is responsible just because the timing matches.
Test:
- another compatible charging cable;
- another power adapter;
- another wall outlet;
- the manufacturer’s recommended charger if available.
Samsung still lists faulty chargers and cables among the most common reasons a Galaxy device will not charge.
If another charger works normally, the update was probably not the real cause.
4. Check the Charging Port
Inspect the charging port with a light.
Look for:
- lint;
- dust;
- debris;
- corrosion;
- bent or damaged contacts.
Do not use:
- metal tools;
- liquids;
- compressed air;
- excessive force.
If the phone shows a water or moisture warning, use Moisture Detected in Charging Port instead of treating it as a software problem.
5. Check Whether Charging Is Only Slow
If the phone still charges but takes much longer than before, the problem may be charging speed rather than charging failure.
Check:
- charger wattage;
- cable quality;
- phone temperature;
- background activity;
- battery protection;
- fast-charging settings.
Use Why Is My Phone Charging Slowly? for the broader slow-charging diagnosis.
6. Check Fast-Charging Settings
Some phones, especially Samsung models, provide user-facing fast-charging controls.
After an update, check whether the relevant charging option is still enabled.
On supported Samsung phones, look under:
Settings > Battery > Charging settings
The exact wording can vary by One UI version.
If normal charging works but fast charging does not, use Fast Charging Not Working rather than treating the phone as completely unable to charge.
7. Check Battery Protection or Charging Limits
An update may change the way battery-protection features behave.
Depending on the phone, you may see options such as:
- Battery Protection;
- Adaptive Charging;
- Optimized Battery Charging;
- charging limits.
These features can intentionally:
- slow charging;
- delay charging;
- stop charging near a selected percentage.
That is different from a charging fault.
Temporarily review the battery settings and confirm whether the phone is following a protection rule.
Do not permanently disable battery-protection features unless you actually want to change their behavior.
8. Check for Another Software Update
If the charging problem started immediately after a major update, check for a follow-up patch.
Manufacturers often release smaller updates after major operating-system releases.
On Android, look under:
Settings > System > Software update
or the equivalent menu used by your phone manufacturer.
On iPhone:
Settings > General > Software Update
Install any available update, restart, and test charging again.
9. Update Your Apps
Apps can behave differently after a major system update.
Update installed apps from Google Play, Galaxy Store, or the App Store.
Pay particular attention to apps that affect:
- battery management;
- automation;
- charging;
- device security;
- performance;
- system monitoring.
A third-party app that was stable before the update may behave differently afterward.
10. Test Charging With the Phone Turned Off
This is one of the most useful tests.
Turn the phone off completely.
Connect the charger and leave it connected for a while.
It charges normally while turned off
Software, background activity, or an app conflict becomes more likely.
It still does not charge properly
Focus on:
- charger;
- cable;
- charging port;
- battery;
- hardware.
This test is more useful than resetting several unrelated settings.
11. Check for Excessive Heat
Phones can slow or pause charging when they get too warm.
Post-update background activity can increase temperature temporarily.
Let the phone cool naturally.
Remove a thick case while testing.
Avoid:
- direct sunlight;
- gaming while charging;
- charging under blankets;
- placing the phone in a refrigerator or freezer.
If the phone becomes abnormally hot every time it charges, investigate the charger, battery, and hardware instead of assuming it is normal post-update behavior.
12. Test Wireless Charging Separately
If your phone supports wireless charging, test it separately from wired charging.
Wireless works but wired does not
Focus on:
- charging cable;
- power adapter;
- charging port;
- moisture or debris.
Wired works but wireless does not
Focus on:
- wireless charger;
- case;
- alignment;
- charging coil;
- heat.
For iPhone-specific wireless charging problems, see iPhone Wireless Charging Not Working.
13. Check Battery Diagnostics or Battery Health
Battery problems sometimes become more noticeable after an update because users start watching charging behavior more closely.
On supported Pixel phones, Google provides:
Settings > Battery > Battery diagnostics
On iPhone, battery-health information is available under Battery settings.
Look for signs such as:
- unusually rapid battery drain;
- shutdowns;
- excessive heat;
- charging percentage jumping;
- battery-service warnings.
A software update does not usually physically damage a healthy battery.
If the battery was already aging, the timing may simply make the problem more obvious.
14. Use Safe Mode Only if an App Conflict Is Plausible
On Android, Safe Mode can help if the charging problem appears only while the phone is running normally.
Use it when the issue started after the update and you suspect a third-party app.
If charging works normally in Safe Mode, recently updated or installed apps become more likely.
Do not use Safe Mode as a routine first step when the phone will not charge at all.
15. Avoid Broad Resets Too Early
Do not jump straight to:
- Reset All Settings;
- network reset;
- recovery-mode cache clearing;
- factory reset.
Those steps are often recommended too early.
They do not repair:
- a bad charger;
- damaged cable;
- blocked charging port;
- moisture;
- battery failure;
- charging hardware.
A factory reset should be one of the last software tests, not an early reaction to a charging problem.
When the Update Is Probably Not the Real Cause
The update is less likely to be responsible when:
- another cable fixes the problem;
- another charger fixes the problem;
- the charging port is visibly damaged;
- the phone shows a moisture warning;
- the battery was already failing;
- charging fails even while the phone is powered off;
- the phone was recently dropped or exposed to liquid.
In those situations, use the appropriate hardware or charging guide instead.
For a phone that will not charge at all, see Android Phone Not Charging.
When to Get the Phone Checked
Professional inspection becomes reasonable when:
- several known-good chargers fail;
- charging fails while the phone is off;
- the port is loose or damaged;
- the phone overheats during every charging attempt;
- the battery shows a service or diagnostic warning;
- the problem persists after a follow-up update;
- wireless and wired charging both fail.
The most useful approach is to separate a true software problem from a charger, port, battery, or hardware fault. Start with a restart and post-update background activity, then test the charger, cable, port, charging settings, and power-off behavior before considering resets or repair.
