Smartphone Xiaomi Redmi 6 Pro has proven to be a reliable device, but even the highest quality equipment over time requires maintenance. Broken screen, battery life or failure of the microphone are common reasons why owners think about self-repair. Disassembly of the device allows you to save a significant amount on the services of the service center, if you perform all the actions carefully and consistently.
Before you start dismantling, you need to understand that the Redmi 6 Pro has a framed design, which makes the process a little more complicated compared to models where the display is glued directly to the body. You will need patience, good lighting and a set of specialized tools. In this article, we will look at each step in detail to minimize the risks of damage to internal components.
It is important to note that any interference with the design of the gadget will void the warranty. If your device is still in warranty service, it is better to contact the official representatives of the brand. However, if the warranty has already expired or the case is non-warranty, self-repair will be a great experience.
Workplace preparation and necessary tools
Good preparation is key to successful repairs. Don't start a showdown on a soft sofa or in dim lights. You'll need a hard surface, preferably an antistatic mat, so that small screws don't get lost and fly away in an unknown direction. The organization of space is critical to maintaining the integrity of all the small details.
To work with the Redmi 6 Pro, you will need a specific set of tools that can be purchased from any radio parts store or online.
- 🔧 A set of Phillips screwdrivers (cross) sizes PH000 and PH00.
- 🔥 Hair dryer or heat heater (to soften glue).
- 🪒 Plastic blades and mediators (so as not to scratch the body).
- 🧲 Magnetic mat or organizer for screws.
- 🔪 Thin blade or special knife for opening.
⚠️ Note: Using metal tools instead of plastic when working with the case can lead to irreversible scratches on the frame and damage to internal plumes.
It is also highly recommended to have tweezers with curved ends and a suction cup on hand. The suction cup will help to evenly lift the back cover, and tweezers are necessary for gently detaching the connectors. Don't forget about isopropyl alcohol - it will help dissolve the glue residue without damaging the electronics.
☑️ Pre-commencement checks
Primary actions: SIM extraction and heating of the case
The first step is to remove the tray for SIM-In the Redmi 6 Pro, the tray is on the top end. Use a special clip or a thin blade to press the hole and remove the module. This action breaks the contour of the case and allows air to circulate as it warms up.
Next, soften the adhesive layer that holds the back cover. The factory adhesive is very strong, and trying to open the cold phone is guaranteed to cause cracks in the glass. Turn the hair dryer on average power and evenly warm the perimeter of the rear panel for 2-3 minutes. Keep the hair dryer at a distance of 3-5 cm, constantly moving it so as not to overheat the display matrix on the front side.
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Check the temperature of heating with your hand: if the body is too hot to touch, then the glue is softened enough, but do not overdo it so as not to damage the battery.
After warming up, carefully insert a plastic card or blade into the junction between the frame and the back cover. Better start at the bottom corner or on the side of the volume buttons. Move the tool along the perimeter, feeling the resistance of the glue. If the tool stopped slipping, then the glue is cooled, repeat the heating procedure again.
Dismantling of the back cover and plastic frame
When the glue is softened around the perimeter, you can use a suction cup. Attach it to the bottom of the back cover and pull it up slightly while working with a plastic blade into the resulting gap. Act slowly: Redmi 6 Pro glass is brittle, and a sharp movement can split it in half.
When you remove the back glass panel, you'll see a plastic decorative frame that holds the main components, and it's also fixed with screws and glue, and at the bottom of the device, you'll need to twist out some screws that hold this frame, and note that the screws can be of different lengths, so it's advisable to sort them right away.
To remove the frame, carefully tuck it with a plastic blade in several places. Often it is held on latches that require careful snapping. Do not use excessive force: if the frame does not go, check if all screws are twisted. Pay special attention to the areas around the main camera module where additional locking elements are often hidden.
| Type of screw | Location. | Number of | Tool. |
|---|---|---|---|
| Long. | Lower part of the frame (near the speaker) | 2 pcs. | PH00 |
| Medium. | Side edges of the frame | 4 pcs. | PH000 |
| Short. | Near the display plume | 1 pc. | PH000 |
| Micro. | Camera attachment | 1 pc. | PH000 |
Disabling the plumes and removing the motherboard
Once the plastic frame is removed, you have access to the motherboard, and the first thing you need to do is turn off the main display and touchscreen, and they're in the center of the board, and they're covered with a metal bar, and you need to carefully unscrew the screws that hold the bar, and you need to remove it.
To turn off the plumes, use a plastic blade or nail. Push the connector up vertically. You can't pull the plume itself, because it can break at the base. First, turn off the display plume, then turn off the touchscreen, and then you can carefully pull the motherboard aside if you want access to the bottom components.
⚠️ Warning: Before turning off any plume, make sure the device is completely off.The residual voltage in the circuit can cause the power controller to fail.
If your goal is to replace the motherboard, then after turning off all the plumes (camera, buttons, bottom plume), you need to unscrew the screws that hold the board itself. There are usually 5-6 of them. After removing the board, be careful with the front camera and speaker, which are often built into the board or tightly attached to it.
Replacement of the battery and work with the lower fee
The battery in the Redmi 6 Pro is located at the bottom of the case and glued to a metal frame with two strips of glue. Removing it will require heating again. Warm the bottom of the phone with a hairdryer for 3-4 minutes. Then use a plastic card to tamper with the battery. Put a card between the battery and the case and slowly drive it, cutting the glue layer.
Never attempt to squeez the battery with sharp metal objects or squeeze it. Damage to the lithium polymer cell can cause a fire or explosion. If the battery is swelling, act with extreme caution.
The subboard contains a charging connector, microphone and headphone jack, and it's connected to the motherboard with a wide plume that runs under the battery, and you need to replace the lower board by:
- 🔋 Remove the battery (or at least unstick its top part).
- 🔌 Disconnect the plume connecting the boards.
- 🔩 Unwrapped the lower board fastening screws.
- 🧹 Clean the landing place from dust and old glue.
When installing a new battery, be sure to use a special glue B-7000 or double-sided tape for fixation.This will prevent the battery from bolting inside the case, which can cause the plumes to break off when falling.
What do I do if the plume is broken?
Assembly of the device and verification of functionality
The assembly is done in reverse order, but there are a few things that you can't ignore, and before you twist all the screws, you have to do a first check, plug the display plume and touchscreen, then briefly turn the device on by pressing the power button.
Check the sensor, the color display on the screen, the vibrator and the speaker, if everything is working correctly, turn off the phone and continue building, put the motherboard in place, fix the metal bar of the connectors, and connect all the plumes until you click.
When installing the back cover, make sure that the adhesive layer is applied evenly throughout the perimeter. If the old glue is left on the frame, carefully remove it with a blade and degrease the surface with alcohol. Press the lid around the perimeter and lock the phone with stationery gums for 15-20 minutes until the glue is completely dry.
⚠️ Warning: Don't screw in too much force.Plastic seats in Redmi 6 Pro may crack and mounting will become unreliable.
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The main secret of successful assembly is not to rush to twist the screws until the moment of full check of the operability of all systems in disassembled form.