Apple iPhone 12 - Auxiliary board

Guide with all the necessary steps so that you can change the components of the Apple iPhone 12 (A2403) yourself

Difficulty
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Tutorial: Step by step

Step 1 Heat application

First, we apply heat to the terminal on the screen part to soften the adhesive and be able to separate them.

Step 2 We take off screen

Next we extract the two Pentalobe type screws (TS1) and with the help of suction cups and a fine opening tool we separate the screen from the terminal until it is detached from the chassis

Step 3 Shields

We remove the Triwing screws (Y0.6) from both shields that are shown in the first photo of this step and remove them.

Step 4 We disconnect flex from battery and screen

Now we disconnect the battery and the flexes that join the screen to the terminal chassis in order to separate them.

Step 5 Rear cameras

We extract the four Triwing type screws (Y0,6) and one Phillips type (PH # 00), remove the shield, then release the connections of the rear cameras and remove them.

Step 6 Card reader

We extract the four Triwing screws (Y0.6) then we remove the shields we remove the sim tray and we can remove the reader from its housing.

Removing the auxiliary plate does not require removing the battery.

Step 7 Components

Next we release the flex that we show on the screen, we will have to lift the adhesive to detach the flex from the motherboard since we will have to extract it to remove the auxiliary plate.

Step 8 We disconnect flex

We release all the connections that are on the motherboard

Step 9 Base Plate

We remove the three Phillips screws (PH # 00) that hold the motherboard to the chassis and the three Triwing (Y0.6) that hold the flex to the side, then we remove the connection of the auxiliary plate that is on the motherboard and remove this same.

Step 10 Speaker

We remove the four Phillips type screws (PH # 00) that hold the speaker and remove the speaker.

Step 11 Vibrator

We extract the three screws from the vibrator, two of the Standoff type and one of the Phillips type (PH # 00), once removed, we extract the vibrator.

Step 12 Screws and shielding

Here we find ten screws, five Triwing type (Y0.6), one Standoff type and four Phillips type (PH # 00), we extract all the screws and also remove the shield to then remove the auxiliary plate.

Step 13 Auxiliary board

With the help of a fine plastic tool we detach the flex from its base and remove it.

Video Tutorial summary

In this video you can watch a quick summary of the tutorial, but we recommend to follow the complete tutorial, with its explanations and detailed images.
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