DIY Xiaomi Redmi 9 BN54 Battery Repair Guide

Before Starting, we need to have the right tools to proceed with the repair, which you can find in the description.

First, turn off the phone, take off the sim tray, and then follow with the back cover removal.

To remove the back cover, create an opening near the charger port, insert a picker through the frame and the back cover, and then, by using your plastic car pry tool, gently move around the phone to release the plastic clips by the frame.

Take out the back cover and take out the main board frame by undoing screws undo 11 screws and lifting the protector cover using a pry tool also, do not forget to disconnect the flash plug and the shield.

Take out the frame and disconnect the battery lcd and mainflex cables.

Next, take out the broken battery by using the adhesive, release both tabs, and extract the adhesive gently.

Next, place the new replacement battery and add a new adhesive to the battery.

Next, connect the lcd battery and main flex plugs to the logic board.

Next, place the main board frame on the logic board and insert 11 screws. Do not forget to connect the flasher plug and the shield by adding the screw on the bottom right.

Finally, add the back cover and run through the sides to secure the clips. and also do not forget to add the SIM tray

Hope you have enjoyed the battle replacement guide. Let us know if you have any questions.