Explore comprehensive repair Ways for Nokia 105 TA-1174 charging problems and Repair the Nokia 2019 charging schematic diagram and pinout solutions.
Nokia 105 TA-1174 Charging Repair Guide: Troubleshooting and Fixes
The Nokia 105 TA-1174 is a reliable basic mobile phone, but charging issues occasionally affect the user experience. Common charging problems include instances where the phone won’t charge, the display shows "Battery Full," or an error message appears on the screen. Other issues may include the battery percentage not increasing, charging stopping abruptly, or the phone draining power too quickly. If the phone is unresponsive even when connected to a charger, the issue might stem from various components such as the charging port, battery, connectors, charging IC, or pathways. In this guide, we’ll address each potential problem with step-by-step solutions to help restore the Nokia 105 TA-1174’s charging function.
All Problem List:
➔ Not Charging And Display Show Battery Full unplug the charger from the socket.
➔ Not charging Show Display Charging Error Problem.
➔ Charging after Show Not Charging.
➔ The phone doesn’t charge when connected to a power source.
➔ Battery percentage doesn’t increase, or it drains quickly.
➔ The charging port or surrounding components might be damaged or faulty.
Nokia 105 TA-1174 Charging Repair Ways:
The Display Shows “Battery Full” or “Charging Error” Problem
If the phone shows “Battery Full” or “Charging Error” even when the battery isn’t fully charged, it may indicate an issue with the charging circuitry or the battery itself. Here’s how to tackle this problem:
Remove the Battery and Inspect It:
Begin by removing the battery and checking it for any swelling or physical damage, which could interfere with normal charging.
Clean Battery Contacts:
Sometimes, poor contact between the battery and connectors can cause error messages. Clean the battery contacts with a soft brush or a cloth slightly dampened with isopropyl alcohol. Ensure no corrosion or dirt is affecting the connection.
Replace the Battery if Faulty:
If the battery shows signs of wear, it may need to be replaced. A deteriorating battery may falsely indicate “Battery Full” or throw charging errors due to unstable voltage.
Check the Charging Pathways:
In some cases, the charging pathway from the charging port to the battery connectors may have loose connections or broken lines. Use a multimeter to check continuity in these pathways, repairing or reconnecting any damaged traces.
Not Charging When Plugged In
If the Nokia 105 TA-1174 doesn’t charge when connected to a power source, the issue could stem from the charging port, charging IC, or battery connectors. Follow these steps to troubleshoot:
Inspect and Clean the Charging Port:
Dust and debris can block the charging port, preventing a good connection. Use a small brush or compressed air to remove any particles. Also, check for signs of damage, such as bent or broken pins inside the port.
Test the Charging Port with a Multimeter:
Use a multimeter to measure the voltage output at the charging port. If there’s no output, the port may need replacement or re-soldering to ensure a stable connection.
Check Battery Voltage at the Connector:
After cleaning and testing the charging port, measure the voltage at the battery connector pins. A reading below 3.7V indicates a possible battery or connector issue. If there’s no voltage detected, check the connections leading from the port to the connector.
Inspect Charging IC:
The charging IC controls the charging process, ensuring stable voltage and current to the battery. If there’s no voltage output from the charging port or battery connectors, the IC might be malfunctioning and could require replacement.
Battery Percentage Doesn’t Increase or Drains Quickly
When the battery percentage doesn’t increase while charging, or it drains rapidly, the issue may lie with the battery, charging IC, or related pathways. Here’s how to diagnose and repair it:
Examine the Battery Condition:
Sometimes, an old or weak battery won’t hold a charge well, causing it to drain quickly. Test the battery’s voltage using a multimeter; if it falls below the recommended 3.7V, consider replacing the battery.
Test the Charging IC for Stability:
The charging IC regulates power flow, and if it’s faulty, the phone may charge intermittently or drain quickly. Use a multimeter to check for continuity in the IC’s connections. If there’s no stable current output, replace the IC.
Check Battery Connectors and Charging Pathways:
Loose or corroded connectors can cause inconsistent charging. Inspect and clean them to ensure they make firm contact with the battery. Use a multimeter to test continuity from the charging port to the battery connectors, repairing any damaged lines as necessary.
Monitor Charging Behavior:
Once the repairs are complete, observe the charging process. If the battery percentage increases gradually and consistently, the issue may be resolved.
Charging Stops Abruptly or “Not Charging” Message Appears
If the charging stops suddenly, or the phone displays “Not Charging,” it may indicate problems with the power connection, charging port, or charging IC. Here’s how to address this:
Inspect Power Source and Charger:
Start by testing with a known working charger and power source to rule out any external problems.
Check Charging Pathways and IC:
Use a multimeter to trace the power pathways from the charging port through the charging IC to the battery. If there are any broken or disconnected paths, repair or re-solder them.
Replace the Charging IC if Necessary:
If the IC is faulty, it might be responsible for intermittent or halted charging. Carefully remove the old IC and solder a new, compatible charging IC to restore stability.
Test Device After Repair:
Connect the phone to a charger and monitor if it charges consistently without interruption. If the issue persists, check other components like the battery and connectors.
Charging Ports or Components are Physically Damaged
A damaged charging port or component can disrupt the charging process. Here’s how to handle physical component issues:
Examine and Replace Damaged Parts:
Start by carefully inspecting the charging port and surrounding components for physical damage, such as bent pins or burnt marks. Replace any visibly damaged parts.
Re-solder Loose Connections:
In some cases, charging issues stem from loose connections rather than component failure. Re-solder any loose connectors around the charging port and ensure they’re secure.
Test for Continuity and Voltage:
After re-soldering or replacing parts, use a multimeter to check for continuity and verify that voltage flows smoothly through the charging circuit.
Last Resort: CPU Replacement
If none of the above solutions resolve the charging issue, the problem may be with the CPU itself. The Nokia 105 TA-1174 uses a Spreadtrum SC6531E CPU, which is involved in power management.
Confirm All Other Components are Working:
Only replace the CPU if you’ve ruled out issues with the battery, charging port, charging IC, and other circuit components.
Replace the CPU with Caution:
CPU replacement is complex and requires skill. Using a rework station, carefully remove the old CPU and install a compatible SC6531E. Be mindful of proper alignment and soldering.
Test Charging After CPU Replacement:
Once the new CPU is in place, test the phone’s charging capability. If charging proceeds without errors, the CPU is likely the root cause.
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