Samsung Galaxy Alpha - Bottom plate with charging connector

Guide with all the necessary steps for you to change the lower plate yourself with charging connector of the Samsung Galaxy Alpha (G850F).

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TutorialsSmartphonesSamsungSamsung Galaxy AlphaBottom plate with charging connector

Tutorial: Step by step

Step 1 Samsung Galaxy Alpha

Characteristics:

Dimensions: 132.4 x 65.5 x 6.7 mm, 115 grams.
Display: 4.7 inches SuperAMOLED.
Resolution: 720 x 1280 pixels (312 ppi).
Processor: Exynos, octa-core at 1.3 GHz.
RAM: 2 GB.
Memory: 32 GB not expandable with microSD.
Operating System: Android 4.4.4 (KitKat) with TouchWiz layer.
Connectivity: LTE, NFC, WiFi 802.11ac, BT 4.0 LE, USB 3.0, IR port.
Cameras: 12MP rear camera 2160p @ 30fps, front camera 2.1MP 1080p @ 30fps.
Battery: 1,860 mAh.

Step 2 Back case

We start by removing the back cover for what we will use a plastic opening tool. Inserting it between the casing and the frame we can go separating them.

Step 3 Battery and SIM card

We will remove the battery helping us with the opening tool.

If it costs us to remove the SIM card we can push it with a tool.

Step 4 Intermediate housing screws

In this step we simply remove the twelve Phillips screws (PH # 00) that hold the housing to the phone's chassis.

Step 5 Heat screen

In this step we will need to heat the glass to soften the glue and thus be able to remove the screen more easily.

Below we will see two ways to perform this step.

We will use a high thermal retention blanket (HOT GLASS) to heat the glass.

Insert the HOT GLASS in the microwave for the time specified in the instructions.

To heat it evenly, it is necessary to interrupt the microwave every 30 seconds to distribute heat throughout the HOT GLASS with your hands.

The gun emits VERY hot air, use with caution.

We recommend the use at minimum power and short bursts, since excess heat can damage the equipment.

Warm the screen to soften the glue and be able to easily peel it off.

Step 6 Take off screen

With the hot screen, we will introduce a prong between it and the frame to take them off.

Step 7 Intermediate housing

Taking advantage of the battery gap, we will introduce an opening tool between the chassis and the housing to separate them.

Step 8 screws and components

In this step we will start by removing the screw that holds the motherboard. After removing it, we will take off the volume buttons flex of the chassis and the same will do with the flex of the power button, although this can be disconnected.

We will also disconnect the flex with headphone, audio connector, etc. that we show in the photos.

Step 9 Removing the motherboard

We continue disconnecting the components to be able to remove the motherboard. In this step we disconnect the flex from the home button, the flex with antenna connectors and the antenna cable.

Now we can separate the plate but we will have to disconnect the flex from the bottom plate first.

Step 10 Take off screen

The screen is pasted by the center so we will need to introduce a tool carefully to separate it without damaging it. Using the method explained above we will heat the screen.

Once separated we can take off the flexes of the lower buttons that are part of the lower plate.

Step 11 Take off lower plate

Now we will disconnect the antenna cable that is still connected to the bottom plate. We will remove the screws that fastens it to the chassis to be able to remove it but first we will have to remove the screen. :(

Step 12 Bottom plate with charging connector

Finally with the buttons already removed, we can take off the bottom plate and thus 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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