How to Replace iPhone 4 Battery

When the battery of your iPhone 4 has come to the end of its useful life, you need to get it replaced. Those who have proper technical knowledge, patience and a steady hand, can actually replace the battery on their own; however it is advised to have professional iPhone repair specialists. to replace the batteries. If you are the tinkering type, and like to learn how to do it, here is a guide for you.

First, you need to get the right parts. If you are unsure which iPhone model you have, then it can be easily identified by a specific model number that is listed at the back of the phone at the bottom end. In addition to the serial number, each and every iPhone can be looked up on the internet for the identification of the iPhone models by the EMC numbers and Order number which are also referred as “model” from the iOS as well.

Sometimes it becomes difficult to identify the difference between the iPhone 4 and iPhone 4S, but they are not identical and the batteries look different. If you have been opting for the replacement of your iPhone’s battery by yourself, you must make sure that you purchase a new battery for the specified model.

Though it might seem a bit difficult for some of the newbies who have not tinkered with their iPhone 4 batteries, in comparison to the previous models this is not really difficult. The steps are as follows:

The first thing is to switch off the iPhone and make sure that it is completely switched off.
Then you will have to unscrew the two screws that are present on the bottom of the phone. These screws are either of Philips or Five point Torx.
After that, you will need to slide the glass back up carefully and until you hear the “clips” getting disengaged, do not try removing the back.
Carefully note the grounding of clips under the screws that fixes the battery to the board and how it is again fixed to the board for reinstallation before the battery is disconnected. Remember that the orientation needs to be exactly the same as it was originally installed.
Now you can unscrew that single screw which connects the board and battery of the iPhone 4.
Disconnect the battery by using a nylon pry tool.
Depending the amount of adhesive, it can take some time, but do not be impatient and never make use of a screw driver for disconnecting the battery.
The next step is to get the replacement battery and look out for the proper orientation and
positive and negative terminals of the battery.
Place the battery according to the clips and reassemble the phone by fixing the screws again.