Samsung Galaxy S21 Ultra 5G - Auxiliary board

Guide with all the necessary steps so that you can change the components of the Samsung Galaxy S21 Ultra 5G (SM-G998B) yourself.

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Tutorial: Step by step

Step 1 Back case

To begin, we must apply heat to the back cover in order to soften the adhesive that holds it, and with the help of one or more plastic spikes we will take off all the edges of the case.

Step 2 Shield with NFC antenna and wireless charging coil

We disconnect the wireless charging coil, the NFC antenna, and we will remove the five Phillips screws (PH # 00) that hold the shield, and we can unhook the shield and take off the wireless charging coil.

Step 3 We disconnect the battery

We disconnect the battery to work with greater safety.

Step 4 Speaker module

We extract the four Phillips screws (PH # 00) that hold the module, and with the help of a flat tool we will remove the speaker module.

Step 5 Components (edit)

We disconnect the two interconnection flexes, and with the help of an extraction tool we will remove the card tray.

Step 6 Auxiliary board

We remove the three Phillips screws (PH # 00) that hold the auxiliary plate that we have to replace, and with the help of a flat-tipped tool we will unhook 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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