Common Problems and Solutions for iPhone Battery

1) Auto Power -Off 1.Firstly, determine whether it is a cell phone problem. 1-1. download itools or i4 to determine battery parameters. 1-2. Whether the actual capacity of the data (abnormal for 100 design capacity is 0)        Whether the battery temperature more than 56 ℃.        Processing method: If the battery shows an abnormality, check whether the battery connector is in good contact with the phone; After reinstall also showed abnormalities, that the battery is bad. 2-1.There are cracks in the FPC, resulting in poor power supply.  Processing method: Replace the FPC. 2-2. Protection board chip is damaged by large current.  Processing method: Replace the protection board. 2-3.Battery cell internal short circuit, cell voltage is reduced instantly.  Processing method: Replace the cell.

2)Can not start, restart Reflect the state of: Reboot repeatedly after plugged in power, need to press the switch button frequently then will be responsive.    1.The phone is not charged for a long time without electricity, resulting in the battery cell voltage below 3.4V.    Processing method: Recharging activation.    2.Battery protection board IC solder false (resulting in battery voltage output abnormal).     Processing method: Return battery for maintenance.    3.FPC faulty welding, fractured.    Processing method: Return battery for maintenance.    4.Connector breakage, empty solder.    Processing method: Return battery for maintenance.    5.The battery connector is not in contact with the phone interface.    Processing method: Re-install the battery and make sure the battery is in good contact with the phone. 3)Not being charged   1.The battery connector is not in contact with the phone interface.    Processing method: Re-install the battery and make sure the battery is in good contact with the phone.    2.FPC fractured, damage.    Processing method: Replace the FPC.    3.Battery connector breakage, empty solder.    Processing method: Return battery for maintenance.    4.Battery protection board damage.    Processing method: Replace the protection board.    5.The Phone cable is bad.    Processing method: Change the cable.    6.The Phone charger is bad.    Processing method: Change the charger.   7.Check whether the cell phone charging port is damaged.    Processing method: Replace cell phone charging port.

4)Abnormal electricity display 1.Since the battery charger can generate a voltage difference when charging, power will change in a flash, and there will be about 3% of the power beating.    Processing method: The amount of electricity will be stable after the transient beating. 2.The battery connector is not in contact with the phone interface.    Processing method: Re-install the battery and make sure the battery is in good contact with the phone. 3.Battery connector breakage, empty solder.    Processing method: Return battery for maintenance. 4.Abnormal battery data of power.    Processing method: Connect itools to view the battery parameters, use the tool to test whether the battery is abnormal.

5)The battery is fever and hot Cell phone in charge or high power discharge conditions for long,will produce greater than the conventional use of heat, usually ≤ 55 ℃. If the battery temperature is higher than 55 ℃, will cause the iPhone alarm unbootable. 1.The battery is squeezed by external forces, piercing, etc., causing the battery internal positive and negative micro-short circuit, and often charge and discharge for a long time, resulting in short-circuit fever. Processing method: Replace the battery. 2.The cell phone runs too much power consumption, causing the battery to discharge too fast. Processing method: Turn off all programs on the phone and reboot test again. 3.Cell phone circuit board itself is self-consuming too fast, resulting in cell phone fever.  Processing method: Use ITOOLS to check whether the battery temperature is abnormal, if the battery is normal, indicating that there are problems with the phone and need to be repaired. 4.The battery cell had a micro-short-circuit, after a long time use, resulting in short-circuit fever. Processing method: Replace the battery.

6)The battery leak and bulge    According to the after-sales statistics, the problem of leaking liquid is all external damage.    1.The battery is squeezed by external forces, impact, etc., causing a short circuit in the battery, which causes the leakage to swell.    Processing method: Replace the battery.    2.The battery is punctured by external force and punctured which cause direct leakage.    Processing method: Replace the battery.    3.The battery is not insulated well, so that the cell positive and negative is short-circuited with the metal case, causing the core-pole ear to be damaged,   resulting in leakage and expansion.    Processing method: Replace the battery.


7)No data can be detected by testing tools   1.The battery connector is not in contact with the phone interface.    Processing method: Re-install the battery and make sure the battery is in good contact with the phone.    2.FPC fractured, damage.    Processing method: Replace the FPC.    3.The battery is not activated.    Processing method: Activate the battery.

Remark: Using the test tool will cause damage to the battery (For example, the electricity meter is abnormal, the protection function is damaged).


8)Power down fast 1.The first use of the battery shows misjudgment. Processing method: When the battery is used for the first time, after the battery discharge, and then use small current to charge and discharge cycles with 2-3 times to activate the battery, only when the battery is activated can the battery capacity be determined accurately. 2.Large power consumption of mobile phones, start the program too much, running a large game power consumption.  Processing method: Optimize the phone system, try to turn off some unused background programs. Want to add a caption to this image? Click the Settings icon. 3.Cell phone battery usage for more than six months, the battery capacity will decline, those who charge several times a day or long-term plug-in mobile phone, very premature failure of the battery. Processing method: Use the battery properly and try not to play with phone while charging. 4.Battery protection board or cell with big self-consuming of power. Processing method: Replace the battery.





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