Primux Alpha 4 - Flex with volume and ignition pushbuttons

Guide with all the steps necessary to change the flex yourself with the power buttons and volume controls of the Primux Tech Alpha 4.

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TutorialsSmartphonesPrimux TechPrimux Alpha 4Flex with volume and ignition pushbuttons

Tutorial: Step by step

Step 1 Primux Tech Alpha 4

Especificaciones:
 
Procesador: Quad Core MTK6582M 1,3 GHz
Memoria Ram: 1 GB
Almacenamiento: Interno 16GB, externo: MicroSD/SDHC hasta 32Gb
Pantalla: 5" IPS/OGS  960x540 qHD
Batería: 1900 mAh/3.7V Polymer Lithium
Sistema Operativo: Android OS versión 4.4 KitKat
Cámara: Trasera 13,0 Mpx Auto Focus, Frontal 1,3 Mpx
Conectividad: Wi-Fi 802.11 b/g/n, Bluetooth 4.0, 2G, 3G: WCDMA/UMTS/HSPA/GSM/EDGE, GPS Interno
 

Before you start, make sure your mobile is turned off.

Step 2 Back cover

Remove the back cover. Using a plastic opening tool will prevent scratches.

Step 3 Battery

Remove the battery by pulling on the bottom.

Step 4 SIM and SD cards

Remove the SIM and SD cards.

Step 5 Intermediate housing

Remove the 11 Phillips screws that hold the middle housing.

Step 6

Disassemble the intermediate housing with the opening tool.

Step 7 Side keys

The volume and ignition keys are not attached, so that when separating the intermediate casing, they will simply come off.

Step 8 Motherboard components

Remove the adhesive covering the connectors on the motherboard.

Step 9 Vibrator and microphone

Remove the microphone and the vibrator from the intermediate housing.

Step 10 Touch screen flex

Take off the touch screen data flex.

Press the connector tab and unplug the flex from the motherboard.

Step 11 Flex de display

Unplug the display data flex on the motherboard, by pulling the connector tab and pulling gently.

Step 12 Volume and ignition pushbuttons

Take off the flex pushbuttons of volume and ignition.

Step 13 Motherboard

Remove the base plate, fastened by 2 Phillips screws.

Step 14 Desoldering components

Use a suitable support to desolder the components of the motherboard.

Remove the Kapton tape that covers the component pins.

Step 15 Flex with volume and ignition pushbuttons

Point the hot air nozzle to the tin of the pins.

Hold the flex with tweezers and, with great care, pull slowly. The pins will gradually desolder.

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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