Infinix Smart 8 Not Charging When Switched On: Step-by-Step Fix

If your Infinix Smart 8 charges when it is switched off but stops charging or does not increase its battery percentage when it is switched on, the phone is detecting the charger but may not be receiving enough usable power.

The problem can come from the charger, cable, charging port, battery, excessive power consumption, heat, or a software or hardware fault.

Follow these steps in order.

1. Check What Happens When You Connect the Charger

Switch on the Infinix Smart 8 and connect the charger.

Check whether:

• The charging icon appears but the percentage does not increase.
• The phone says it is charging but the battery continues decreasing.
• Charging starts and stops repeatedly.
• Nothing happens when the charger is connected.

This distinction helps identify the cause.

2. Try Another Charging Cable

A damaged cable can provide enough connection for the phone to detect the charger but not enough stable power to charge the battery normally while the phone is running.

Use a known-good compatible cable.

Connect it while the phone is switched on and monitor the battery percentage.

If charging works normally, replace the original cable.

3. Try Another Compatible Charger

Test the phone with another known-good compatible charger.

Avoid using a damaged, loose, or questionable adapter.

If the Smart 8 charges normally while switched on with another adapter, the original charger is likely the problem.

If it still only charges when switched off, continue troubleshooting.

4. Inspect the Charging Port

Switch the phone off and inspect the charging port under good lighting.

Look for:

• Dust
• Lint
• Dirt
• Moisture
• Corrosion
• A loose or damaged connector

Debris can prevent proper contact between the cable and charging port.

Do not insert a needle, pin, knife, or other metal object into the port.

If the port is wet, leave the phone disconnected until it is completely dry.

5. Check Whether the Phone Is Overheating

A phone can reduce or stop charging when its temperature becomes too high.

If the Smart 8 becomes unusually hot while switched on, disconnect the charger and allow the phone to cool naturally.

Close demanding applications and avoid gaming, video recording, or other intensive tasks while testing charging.

Do not cool the phone with a refrigerator or freezer.

After it has cooled, connect the charger again.

6. Stop Apps That Are Consuming Excessive Power

If the charger is supplying power but the phone is consuming nearly as much power while switched on, the battery percentage may appear stuck.

Before testing again:

• Close games.
• Stop video playback.
• Turn off unnecessary hotspot use.
• Reduce intensive background activity.
• Leave the phone idle for several minutes while charging.

If the battery percentage begins increasing when the phone is idle, excessive power consumption was contributing to the problem.

7. Restart the Infinix Smart 8

A temporary software process can interfere with charging.

Disconnect the charger and restart the phone.

After the phone starts completely, connect the charger again and leave it idle for several minutes.

Check whether the battery percentage increases.

8. Check Whether Charging Works in Safe Conditions

Test the phone with:

• A known-good compatible charger
• A known-good cable
• A clean, dry charging port
• The phone at normal temperature
• The phone idle with demanding applications closed

If it still refuses to charge while switched on but charges consistently when switched off, the difference between the two states is important.

It suggests that the problem may involve software, power management, battery behavior, or charging hardware rather than simply a bad cable.

9. Check for System Updates

If the phone can operate normally apart from the charging problem, check whether a system update is available.

Open the phone's system update section and install an official update if one is offered.

After updating, restart the phone and test charging again.

Do not install unofficial firmware simply to try to fix the charging problem.

10. Test Whether the Battery Percentage Actually Increases

Connect the phone to a known-good charger while it is switched on.

Leave it idle for around 15–30 minutes.

Record the battery percentage before and after the test.

For example:

Before: 30%

After: 40%

If the percentage increases, the phone is charging even if the charging speed is slow.

If it remains at the same percentage or decreases while the phone is idle, continue troubleshooting.

When the Problem May Be Hardware

If the Smart 8 consistently charges when switched off but refuses to charge when switched on despite using known-good charging equipment, the phone may have a problem involving:

• Charging port
• Charging board
• Battery
• Charging circuit
• Power-management hardware

A technician should diagnose the phone rather than repeatedly replacing chargers.

Do Not Keep Bending the Cable

If charging only works when the cable is pushed, pulled, or held at a particular angle, stop using that setup.

The charging port or cable connector may be damaged.

Forcing the connector can make the physical damage worse.

Final Fix

Start by testing a different compatible charger and cable. Then inspect the charging port, make sure the phone is cool, close demanding applications, restart the Smart 8, and test charging while the phone is idle.

If the phone still charges normally only when switched off, even with known-good charging equipment, the problem may be beyond a simple charger or cable issue and should be diagnosed by a qualified technician.

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Originally published on Qevra