Read the original battery data, tear off the insulating sticker, disconnect the management board from the battery, cut off the battery, then bring a battery without a battery (it is not recommended to transplant a finished battery here), and spot weld the removed battery to a new battery. Why do you use a spot welder? Because this method will be safer, if you use a soldering iron, it is easy to cause tin explosion to the chip on the flat cable. Spot-weld the battery and the battery core after alignment, test the voltage after welding, and then rewrite the battery data, so that no window prompts will pop up, and the battery utilization rate will also display 100%. If the cable is accidentally broken during the operation, we can also disassemble the encryption chip and move it to a new cable. However, models after iPhone 1 1 cannot modify battery data through tools. After replacing the battery, charge and discharge the battery as much as possible, and the battery health will gradually increase. Cycle operation method: the battery of the mobile phone is discharged, then fully charged, and so on. Every time you use your mobile phone to run out of power, then charge it for an hour or two. This is a complete cycle. The above is Apple's mobile phone replacing the encrypted battery. I wish you a happy life. Thank you for your concern?