How to understand Xiaomi Redmi Note 8 Pro: Step-by-step analysis

Disassembly of the popular smartphone Xiaomi Redmi Note 8 Pro can be required in various situations, from replacing broken glass to installing a new battery. This model, despite its reliability, is not without the typical problems of modern gadgets, such as battery wear or damage to the display after falls. Self-interference in the interior of the device can significantly save on the services of service centers, if you perform all the actions carefully and consistently.

But you have to understand that the dismantling process requires a certain amount of skill and specialized tools. Smartphone design involves using adhesives to fix the elements, which makes it difficult to first open the case. Incorrect actions can damage the plumes or even break the motherboard, so it is important to prepare theoretically and physically before starting work.

In this article, we will take a closer look at how the Redmi Note 8 Pro is disassembled, with attention to each screw and connector. You will learn about the necessary precautions, the list of tools and the specific nuances of working with the adhesive base of the rear cover.

Tools and workplace preparation required

Before starting the dismantling, you need to organize a comfortable and well-lit workplace. The best option is a desk with a clean surface, covered with a soft mat or towel, so that small parts do not get damaged or lost. Light should fall evenly, without creating glare on the glossy surfaces of the smartphone, which allows you to see small screws and connectors.

For high-quality disassembly Xiaomi Redmi Note 8 Pro you will need a minimum set of tools that can be purchased in any electronics store.The lack of specialized equipment often leads to the failure of the screws or damage to the body, so you should not neglect this step.

• 🔧 Set of screwdrivers (mandatory presence of cross-haired) P2 pentalobe P5 screw).
• 🔥 Hair dryer or heating platform for softening glue.
• 💳 Plastic cards or mediators for opening the body.
• 🩹 Tweezers with curved ends for extracting small details.
• 🧲 Magnetic screw-sorting mat.

The critical step is to turn off the power of the device. Before any manipulations begin, you need to completely turn off the smartphone by holding the lock button. If the screen is broken and does not respond to touch, hold the volume and power buttons simultaneously for 10-15 seconds before vibration or full screen extinction. Ignoring this rule can lead to a short circuit on the board when the plumes are disconnected.

⚠️ Warning: Do not use metal blades or knives to peel off the back cover. high risk of damaging internal components or puncture the battery, which can cause a fire.

Removal of the back cover and primary access

The most difficult step in disassembling the Redmi Note 8 Pro is to neatly separate the back glass panel, which is attached to a two-part glue that, when exposed to time and heat, becomes very durable. SIM-cards to free up interior space and reduce pressure on the body.

Then you need to warm up the perimeter of the device evenly. Use a hair dryer with a temperature of about 80-90 degrees, and drive a jet of air along the edges of the back cover for 2-3 minutes. The glass should not heat up to a state where it can not be held in your hands, but it should become noticeably warm. Patience at this stage is the key to the whole back panel.

After warming up, insert the suction cup into the bottom of the back cover, closer to the edge, and pull up slightly, creating a small gap. In the resulting gap, carefully insert a plastic card or mediator. Don't try to turn the tool right away or push it deep inside. Move around the perimeter, gradually cutting the adhesive layer, and periodically reheat the device if the adhesive hardens again.

When the lid is removed, you'll have access to the insides, but you can't put the glass aside right away. There's a fingerprint scanner on the inside of the lid, connected by a plume to the motherboard, and be very careful not to damage this thin conductor when you fold the lid.

Dismantling the protective panel and disconnecting the plumes

And underneath the back, there's a large plastic or composite plate covering the battery, the motherboard, and the camera module, and it's mounted with a lot of screws of different sizes, so it's important to remember where they are, and you'd better use a magnetic mat with a markup or draw a diagram on a piece of paper.

First, unscrew all visible screws around the perimeter and in the center of the protective panel. Pay attention to the screws hidden under stickers or plugs, if any, in your board revision. After unscrewing all the fasteners, gently tuck the plate with a mediator and remove it, opening access to the main nodes.

The next step is to turn off the plumes. The first thing you need to do is to disconnect the fingerprint scanner plume from the motherboard if you haven't already done so when you're removing the lid, then turn off the main plumes of the display and touchscreen, and then use your nail or plastic blade to lift the connector up without putting too much effort into it.

• 🔋 Disconnect the battery plume from the motherboard first.
• 📱 Carefully disconnect the plumes of the display and touch screen.
• 📸 Remove the connectors of the main camera modules.
• 📶 Disable antenna cables (coaxial wires) if they interfere with access.

⚠️ Warning: When the plumes are turned off, never pull the wires. Only act on the hard connector, putting it up from the bottom up.

Now that all communications are broken, you can remove the battery. In the Xiaomi Redmi Note 8 Pro, it is glued quite strongly, so you will need to reheat the case. You can drip a little alcohol or a special liquid to dissolve the glue (for example, the B-7000) under the battery to facilitate the extraction process.

Replacement of the battery and work with adhesive base

Battery replacement is one of the most common reasons for a smartphone to disassemble. Over time, the capacity of the lithium-ion battery drops, and the device begins to quickly discharge or turn off in the cold. In the Redmi Note 8 Pro model, the battery is located under the protective panel and occupies a significant part of the internal volume.

To remove the old battery after turning off the plume and removing the protective panel (if it is not already removed), you need to warm up the lower part of the case. Carefully tuck the battery with a plastic spatula or use special suction cups. Movements should be smooth, without jerks, so as not to damage the battery shell, which can lead to its ignition.

Once the old battery is removed, clear the seat of the old glue residue. Use soft cloth soaked in alcohol or isopropyl alcohol. The surface must be clean and defatted to securely fix the new cell. The new battery must be applied to double-sided tape or special battery glue.

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Use only original or certified high-quality batteries. Cheap analogues can have a real capacity of 2-3 times less than the declared one and quickly fail.

Put the new battery back in place, pressing it tightly across the area. Connect the plume to the motherboard before the characteristic click. Don't turn on the smartphone right away, first make sure that all the other components are in place and nothing interferes with assembly.

Removal of the display and camera module

If you want to replace a broken screen, it gets a little complicated. In the Redmi Note 8 Pro, the display module is glued to the frame of the case, and it often requires you to change the insides from the old broken module to the new one, or change the module assembled with a frame.

To remove the display, you need to unscrew the screws that hold the bottom plastic frame (if it is structurally separated), and remove it. Then warm up the perimeter of the screen with a hairdryer and gently tuck it around the edges. Under the screen there are plumes that connect the touchscreen and the matrix to the board, so you need to act very carefully.

The main camera module in this model is quite large, and it protrudes above the board level, it's mounted with screws and connected with a plume. Before removing the camera, make sure all the plumes are turned off and the protective plate is removed, and the camera is sensitive to static electricity and mechanical damage to the lens.

When installing a new display, be sure to check it before it is fully assembled. Connect the plumes, turn on the smartphone and make sure that there are no broken pixels, correct color reproduction and responsiveness of the touchscreen. Only after successful testing can you start the final assembly.

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Always check the performance of new components (screen, camera, speaker) until the case is completely glued together, which will save time for re-disassembly in the event of a marriage.

Assembly of the device and verification of functionality

The Xiaomi Redmi Note 8 Pro is assembled in reverse disassembly order. Set all components in their places, make sure the plumes are connected to the point and fixed with pressing slats. Screw the screws evenly, without undue effort, so as not to break the thread in the plastic seats.

Pay special attention to the back cover sticker. Old glue should be removed completely. Apply a new layer of glue (B-7000 or analog) along the perimeter of the frame with a thin strip. Let the glue dry a little (1-2 minutes), then gently apply the back cover and press hard around the perimeter.

After assembly, wipe the case from the residue of glue and fingerprints. Turn on the device and perform a full test of functionality: check the sensor, speakers, microphone, vibration, Wi-Fi, Bluetooth and both cameras. Make sure that the fingerprint scanner works correctly.

• ✅ Check the touchscreen across the entire screen area.
• ✅ Test the sound recording on the recorder and through the camera.
• ✅ Make sure there are no backlashes and squeaks of the body.
• ✅ Check the charger through the cable.

⚠️ Warning: If the phone doesn't turn on after assembly, don't panic. Check the battery plume and display. Maybe the connector isn't fully inserted or skewed.

Frequently Asked Questions (FAQ)