The newly bought Samsung G7109 cannot be fully charged

Hello: According to your description, there are several possible causes of this problem:

1.Turn off the battery, remove the battery, and use a cotton swab to wipe the battery and phone contact points.

2.Use the original charger to connect to the home power source for charging.

3.Replace the power outlet, try or change a data cable to connect to the charger for charging.

4.If you can't charge it with a cable charger, replace the battery or use a universal charger if possible. If other charging equipment can charge the battery, it is possible that your cable charger is not in good contact and it is recommended to replace it.

5.If the phone can be turned on normally, it is recommended to back up the data in the phone (such as contacts, multiple files, etc.) and restore the phone to factory settings.

Battery problems, go change it.

Hello:1Shutdown charging test.

2.Replace the charging position, and the discharge and return pin are caused by intermittent contact caused by poor contact with the socket.

3.If conditions permit, replace the spare charger for testing.

4.When the phone is turned on and charged, if the mobile phone is equipped with a third-party plug-in such as a charging doctor, it is recommended to test it after uninstalling it.

5.Check whether there are foreign objects in the mobile phone charging interface, such as liquid ingress, debris that causes the contact between the mobile phone charging interface and the charger is not good, if this situation is recommended to be repaired as soon as possible.

6.Back up your phone's data (**book, text messages, **, etc.) and restore your phone to factory settings.

Change to another brand of charger to try, if you can, it means that the charger is broken, if not, the mobile phone charging port is broken or the mobile phone motherboard is broken.

The most common reason why a mobile phone battery is not fully charged is that the charging power is insufficient.

The voltage of the mobile phone battery in the charging process is gradually rising, generally from the rise to, with the gradual increase of voltage, the voltage that the charger can provide must also be exceeded, considering that there will be a voltage drop in the internal resistance of the Sakura data line and the mobile phone, so the general output must be above to ensure it.

Now the power of the mobile phone charger is generally 1A output, but with the gradual increase in battery capacity, the current requirements have gradually increased, the current required for the 2000mAh battery is between to, that is, between 1A and 1A, the charger with 1A output has been difficult to meet the needs of the mobile phone, the maximum output power of the charger will not change, in order to increase the output of the current, it has to reduce the output of the voltage, this voltage has passed the step-down of the data line and the collapse of the car resistance in the mobile phone, The voltage to charge the battery may be insufficient, but it is greater, resulting in the phenomenon that the mobile phone can be charged, but it cannot be charged.

If the external voltage of 220V is relatively stable or relatively high, this phenomenon will not be serious, and the opposite will be more obvious.

So when you encounter that the mobile phone battery is not fully charged, you can check whether your charger output can meet the needs of the mobile phone, if the situation mentioned above, you can try to change a high-power mobile phone charger, which can not only improve the battery life of your mobile phone, but also make your mobile phone charging more safe.

1.Check whether the battery life extender is turned on and the battery can only be charged to 80%, and turn it off under the random software Easy Settings under the general option - Battery Life Extender.

2.Press the F2 button to enter the BIOS settings when you boot up, and the Battery Life Cycle Extension under the Advanced option will change the status to Li Qi off.

Both of the above methods can restore the battery charge to 100

Hello: According to your description, if your phone cannot be fully charged, it is recommended that you:

1.Attempts to reinstall the battery (possibly due to poor contact) are too springy.

2.It is recommended that the worse ones try to change the power outlet.

3.Check that you are using an original charger. If not, try replacing the original charger.

4.Try changing to another battery.

If the problem persists, it is recommended that you bring the purchase invoice, warranty card, battery and dock charger to your local Samsung service center for professional engineers to help you test. For the specific address of the local service center, please visit: