Contixo V8 Motherboard Replacement

Introducción

A number of things may be wrong with your Contixo V8 (model number V8X) if it's slow to respond; you can troubleshoot what's wrong with the device here. A possible issue is a malfunctioning motherboard; this guide will walk you through how to replace it.

You will need two iFixit plastic opening tools, a Phillips size #000 screwdriver, and a soldering iron or gun with a small tip. Please see this guide for information on soldering and desoldering connections within your device.

A plastic spudger would also be useful, but is optional; the iFixit opening tools would work in its place. You may also want to consider using an anti-static wrist strap and anti-static mat when desoldering the battery to free it from the motherboard; see this guide for information on how to use these items.

Qué necesitas

Paso 1 Motherboard

Contixo V8 Motherboard Replacement, Motherboard: paso 1, imagen 1 de 2

Contixo V8 Motherboard Replacement, Motherboard: paso 1, imagen 2 de 2

Find the edge of the tablet, where the front panel meets the sides. Use the plastic opening tools to pry the panels apart.
The back and front of the device can be reattached by lining them up and pushing around the edges. Be sure to do this around the full perimeter of the device to ensure proper connection. You will hear a popping sound; this is the plastic sliding back into place, and is normal.
Lift the face of the tablet.

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Paso 2

Remove the three 1.4 mm screws from the motherboard with the Phillips size #000 screwdriver.

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Paso 3

Contixo V8 Motherboard Replacement: paso 3, imagen 3 de 3

The cable marked in red is locked into place by two dark pull tabs; pull each away from the cream connection port towards the edge of the tablet. Gently remove the cable once the tabs are in the open position.
This cable must be reattached by inserting its end into the port with a moderate amount of force (to ensure proper connection) and then sliding both dark locking tabs back into place against the cream port.
The cables marked in orange are known as zero-insert force cables. To remove the connection, flip up the dark tab and gently pull the ribbon away.
ZIF ribbon cables must be reattached by sliding the cable into place (without force, as implied by the name) and flipping the dark locking tab back into place. Please see this guide if you're having issues reattaching the ZIF cables.

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Paso 4

Contixo V8 Motherboard Replacement: paso 4, imagen 3 de 3

Herramienta utilizada en este paso:

Anti-Static Wrist Strap

$7.95

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Use the spudger tool to break the adhesive holding the battery down and lift it off of the base of the tablet. One of the blue iFixit opening tools can also be used in place of the spudger.
Press the soldering tip to the 3 connection points to detach the motherboard and the battery. See this guide for information and tips on soldering and desoldering.
You will need to reattach these connection points when reassembling your device with the soldering iron. This guide will walk you through how to do that.
Exercise caution when desoldering the battery, especially if you've had issues with the device's power which could point to it being faulty. Consider using an anti-static wrist strap when working with the battery and its cables.