How to install iphone4 battery

You can install the iphone4 battery as follows:

1) Remove the two screws on the bottom of iPhone4 with a small pentagonal screwdriver;

2) Turn the phone over, press the back cover with two thumbs, and gently lift it back to separate the back cover shell of iPhone4 from the body;

3) After removing the back cover, take out the old battery. IPhone4 battery is fixed with screws and metal blocks, so remove the fixing screws first, and then remove the metal plate;

4) After removing the metal block, pull the transparent plastic tab to pull down the old battery of iPhone4. Because the battery is stuck by double-sided tape, it may need a little force. Don't pull it out if you can't. You can use a hair dryer to blow hot air for one minute and then pull it out. Be careful not to damage the front screen and surrounding parts.

5) After taking out the old battery, install the new battery at this position. Please compare the position of battery and metal contact before installation;

6) Reconnect the battery contact connector to ensure the normal connection of the new battery, and pay attention to the correct positioning;

7) After installing the new battery, install the rear cover in reverse order according to the steps when disassembling the machine. Note that the screw should be clamped in place, but not too tight, and the shell is installed.