SOLUTION TO ANDROID MOBILE PHONES FAKE CHARGING | WHY IS MY PHONE CHARGING BUT THE PERCENTAGE IS NOT MOVING | MY PHONE SHOWS CHARGING SIGN BUT MY PERCENTAGE IS NOT ADDING, WHAT SHOULD I DO?
Table of Contents
- Introduction.
- Factors basically responsible for fake charging.
- Solutions to mobile phone showing charging sign but the battery percentage is not increasing or adding (fake charging).
- How to use multimeter to measure voltage on battery connector.
- Deductions that can be made from the battery connector's charging voltage reading.
- How to Fix Zener diode in a phone to solve fake charging.
- Conclusion.
Are you facing a challenge where you plug in your mobile phone to a charger, it shows charging, you go out or leave it, then coming back after sometime only to find out it added only one percent, or no percent at all, whilst still displaying charging. This phenomenon is called Fake Charging. Search no more because you have come to the right place. There are six factors basically responsible for fake charging:
1) Temperature.
2)Faulty Charger.
3)Faulty Charging port.
4)Faulty Charging Panel.
5)Bad Charging IC.
6)Bad battery
Solutions to mobile phone showing charging sign but the battery percentage is not increasing or adding (fake charging).
1.Temperature:
If your phone is currently hot and your battery's percentage is not increasing whilst charging, there's a very much higher tendency the temperature resulted to this malfunction. Temperature plays an important role in the perfect functioning of a mobile phone. Leave the phone unplugged for some time to let it cool down, then after you plug it back.
2.Try out a new charger/cable :
The second step you should always take whenever you encounter a situation where your battery's percentage remains stagnant when charging is trying out a new charger. A charger that can't supply the minimum charge voltage or power sufficient enough to charge your phone will make the battery percentage remain stagnant. If after trying out a new charger and the problem still persists, then we apply the engineering approach.
3.Measure the voltage that's supplied to the battery connector during charging:
After trying out a new charger, the next step is to disassemble the phone, then unclip or unplug the battery, plug in a charger to the phone, then with the aid of a multimeter, measure the voltage on the battery connector.
How to use a multimeter to measure the voltage on a battery connector:
•Your multimeter has two probes, red and black. Turn on the multimeter and put it in the DC volts setting. This is represented with a symbol V will three short horizontal lines on it.
Below are the deductions that can be made from the battery connector's charging voltage reading:
•If the charging voltage registered on the battery connector is less than 4.2V:
a)You have a faulty charging dock or connector.
b)You have a faulty charging board or sub-board.
c)You have a faulty charging IC.
•If the charging voltage registered on the battery connector is equal to 4.2V or more than:
a)You have a faulty battery.
b)You have a faulty section on your CPU which fails to detect changes in battery's percentage.
A recommended charging voltage for a mobile battery is 4.2V, anything far less will not make the phone battery charge, and anything far more may weaken the battery cells over time.
Many times whenever fake charging is reported, it is usually as a result of low charge voltage.
4.Replace the faulty charging connector and/or charging board:
This has always solved 70% of all fake charging problems, this is as a result of a weakened charging connector or a weakened charging board which does not supply the necessary voltage for the phone to charge. Voltage that's supplied from charging docks or boards is 5.0V – 5.4V with an exception of some other phone models that has fast charging systems.
5.Replace the charging IC:
The charging IC is a circuit component that regulates charge voltage and directs the current towards one direction–to charge the battery. It is the component that steps down 5V coming from the charging dock to the 4V which gets to the battery connector to recharge the battery. When the charging IC gets faulty it steps down the 5V coming from the charging dock to a voltage that is less than the 4V needed to charge the battery. Therefore the phone charges but the battery percentage doesn't increase. Replacing the charging IC to a newer one finally fixes the issue of your charging but is not increasing. The charging IC in iPhone is called Tigris and Hydra while in Android it is called charging IC.
6)Zener Diode:
In the absence of a replacement charging IC, a Zener diode is a perfect replacement. It does the function of a charging IC—step down charge voltage and keep current flowing only in one direction.
The Zener diode direct the flow of current only toward one direction, and does not permit the backward flow unless the zener voltage is reached, which is practically impossible in this concept because a battery can't ever supply 5V.
A zener diode has two terminals.
The +ve red terminal and the –ve black terminal.
How to Fix Zener diode in a phone to solve fake charging.•Locate the Vbus gold point on the PCB, also locate the Vbat gold point on the PCB. Break off the protruding long metallic ends of the zener diode to make it shorter, solder a jumper wire to both ends, then enclose the zener diode within an insulator. This process is done to prevent other circuit components from interfering with the activity of the zener diode. |
Now, solder the red +ve terminal of the zener diode to the vbus gold point on the PCB, and the black –ve terminal of the zener diode to the vbat gold point on the PCB.
For phones that don't have Vbat or Vbus, connect the red terminal on the zener diode to the +ve terminal of the charging port, and the black terminal of the zener diode to the +vee point of the battery connector.
The fake charging must be stopped if you follow these methods stated.
Note: There are several zener diodes with different Zener voltage, the right one for phone fake charging is the 5.1V.
This post is not limited to only phones, it works for every rechargeables that won't increase in battery percentage. Works 100%
If you have anything to ask feel free to contact us via email or comments.
Good
ReplyDelete