Replacement of the back cover on Xiaomi Redmi 8 Pro: a complete guide with photos and nuances

The back cover of the Xiaomi Redmi 8 Pro is not only a design element, but also a protective barrier for internal components. Over time, it can crack from impact, scratch or peel off due to wear of the adhesive layer. Many users fear self-replacement, fearing damage to the plumes or battery. However, with the right approach, the procedure is no more difficult than replacing the battery on an old Samsung.

In this article, you will find a step-by-step photo instruction, a list of tools you need, criteria for choosing a quality part, and unique tips for disassembling without damage. We will also analyze the typical errors that cause your fingerprint sensor or vibration motor to fail. If your Redmi 8 Pro is no longer pleasing with the appearance, do not rush to the service center: 80% of users successfully cope with the replacement of the lid at home.

When Replacement of the Rear Cover is Required

Not every scratch or chip is a reason to replace it.

• 🔧 Cracks passing through the camera or fingerprint sensor – they violate the tightness and can lead to dust entering the body.
• 💧 The detachment of the adhesive at the edges, which causes the lid to play when pressed, increases the risk of damage to the plumes when they fall.
• 🔋 Bloating of the battery, which deforms the cover, in which case the replacement of the cover must be combined with the replacement of the battery.
• 📱 Failure of the fingerprint sensor due to mechanical damage to the glass panel (relevant for models with a subscreen scanner).

If the damage is purely cosmetic (small scratches, scuffs), you can do with polishing or sticking a protective film (LTE/Wi-Fi) They may cause a signal to be received by 15–20%.

⚠️ Attention: On the Redmi 8 Pro, the back cover is glued to the display bezels. With a sloppy underdog, you risk tearing off the touchpad plume or damaging it. FPC-battery-connector.

Selection of the back cover: original vs replica

The Xiaomi parts market is flooded with cheap replicas that are seemingly indistinguishable from the original, but have critical flaws:

Xiaomi's official dealers rarely sell parts separately, but there are proven options:

• 🛒 AliExpress (sellers rated 98%+ Search for the phrase "Original Xiaomi Back Cover" in the description".
• 🔧 Service centers that deal with wholesale parts (for example, GSMMaster or Mobile-Repair).
• 📦 Donor-telephones on Avito or Yula with broken screens, but the whole back panel.

⚠️ Note: On the Redmi 8 Pro, the fingerprint sensor is built into the power button, not the glass.This makes it easier to replace the cover, but requires care when disconnecting the button plume.

Tools and training required

To replace the cover with the Redmi 8 Pro, you will need a minimum set of tools, but without some trifles, the risk of damage increases 3 times:

Screwdriver. T3 (frame)

Plastic mediators (2-3 pieces, 0.2-0.3 mm thick)

Dryer or thermo-air station (power 300-500 W)

Suction cup for screens (diameter 4-5 cm)

Tweezers with curved ends

Double-sided scotch or glue B-7000

Alcohol wipes (for cleaning surfaces)

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Preparation of the workplace:

1. Cover the table with a soft cloth (towel, microfiber) so as not to scratch the glass or frame.
2. Put the screws in order -- the Redmi 8 Pro has 12 of them, and they vary in length. Use a magnetic mat or a container of cells.
3. The battery should be less than 30% charged, which will reduce the risk of fire when the lid is heated with a hair dryer.

Critically, on the Redmi 8 Pro, the fingerprint sensor plume is attached to the motherboard with a microconnector, which is easy to tear off if you pull the lid up without first detaching.

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Before disassembling, take a picture of the location of all the plumes and screws, which will save you 20-30 minutes when you reassemble.

Step-by-step instructions for replacing the cover

The disassembly process takes 40-60 minutes. Follow the instructions strictly in order:

Step 1: Heating and separation of the cover

Turn on the hair dryer at 80-90.°C and warm the edges of the lid evenly for 2-3 minutes. Do not direct the airflow to the camera or fingerprint sensor - they are sensitive to overheating:

1. Then, put the suction on the bottom of the suction. USB-C).
2. Carefully pull up, while tucking with a plastic mediator.
3. As soon as a gap of 1-2 mm appears, conduct the mediator around the perimeter, separating the glue.

Step 2: Disconnecting the plumes

After removing the cover, you will see:

• 🔋 Battery (do not touch it without insulation!).
• 📶 Antenna contacts (thin gold stripes at the edges).
• 🔘 Power button plume (black, 5 mm wide).

Disconnect the button plume with tweezers by pulling the plastic latch (not the wires!). If the lid is glued to the frame, carefully separate it with a mediator.

Step 3: Install a new cover

Before editing:

1. Clean the phone frame and a new lid from glue residues with alcohol.
2. Apply a new double-sided scotch or glue B-7000 around the frame, avoiding areas near the speaker and microphone.
3. Line the lid over the camera holes and press gently, starting at the top edge.

After assembly, check:

• 📶 Antennas operation (bell, LTE, Wi-Fi).
• 🔋 Recharge the battery (plug the cable and make sure there is no overheating).
• 🔘 Functionality of the power button and fingerprint sensor.

Common Mistakes and How to Avoid Them

Even experienced craftsmen make mistakes when replacing the cover with the Redmi 8 Pro.

• 🔥 Overheating with a hair dryer - if the temperature exceeds 100°C, the plastic frame may melt or the screen plume may be damaged. Use a thermometer or keep a hair dryer 5-7 cm away.
• 🔧 Loss of screws - Redmi 8 Pro 4 screws near the camera are longer than the others.
• 📱 The antenna lines are damaged, they're placed under a black film at the edges. Don't pick up the mediator in those areas.
• 🔋 Short circuit – if you forgot to connect the battery when you build, but turned on the phone, it can burn the power controller.

How to check the quality of the assembly?

1. Call the phone – if the interlocutor hears a noise or crackling, the cover near the microphone is poorly glued.
2. Illuminate the flashlight on the back side - if you see light on the edges, the tightness is broken.
3. Shake the phone - there should be no rattling sounds (this is a sign of a detached cover or loose screws).

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If the lid was replaced, the phone got worse at catching the network, the antenna contacts were probably damaged, and you can repair them with conductive glue, but you better contact the service.

Alternative ways to repair the cover

It doesn't always require a full replacement, and depending on the damage, you can do it with cheaper methods.

• 🖌️ Polishing scratches – use paste for minor defects GOI Or a toothpaste with an abrasive, applied in a circular motion with a microfiber.
• 🧴 Liquid glass - restores the oleophobic coating and masks the scuffs.
• 📱 The protective label is a vinyl film with 3D-The effect will cost 200-400 rubles and protect against new scratches.
• 🔧 Local repair cracks - for chipping near the chamber can be used UV-glue and ultraviolet lamp (set price: 600-800 rubles).

If the crack came from the antenna opening, don't ignore the problem: over time, it will widen and damage the metal contacts, in which case only replacing the lid guarantees a lasting solution.

⚠️ Attention: When in use UV-Do not point the lamp at the phone screen – it can damage OLED-matrix (relevant to models with AMOLED-display).

Replacement cost in service vs self-repair

Prices for replacement of the rear cover Xiaomi Redmi 8 Pro vary depending on the region and status of the service center:

Self-repair is beneficial if:

• 💰 Your budget is limited (savings up to 3,000 rubles).
• ⏱️ You need to return the phone to working condition (repair takes 1-3 days in the service).
• 🔧 You already have tools (dryer, mediators, screwdrivers).

Please contact the service if:

• 📱 Phone warranty (self-repair cancels it).
• 🔋 Together with the cover, you need to replace the battery or plumes.
• 🛠️ You’ve never taken your smartphone apart (the risk of motherboard damage).

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If you're going to give the phone to the service, ask them if they're using original parts. Many workshops put cheap replicas, but charge as if they were the original. Ask them to keep the old lid, so you can compare the quality.

FAQ: Frequent Questions About Replacing the Cover