How to replace the back cover on Xiaomi Redmi Note 8 Pro: detailed instructions with a photo

Xiaomi Redmi Note 8 Pro is one of the most popular mid-range smartphones, but its glass back is vulnerable to cracks and scratches. If your device loses its presentable appearance or the cover breaks after a fall, don’t rush to the service center. Replacing the back cover on this model is quite feasible at home with the right tools and patience.

In this article, we will take a look at the process from the workspace to the final assembly, learn what tools you will need, how to avoid the typical errors in disassembling the Redmi Note 8 Pro, and what to do if you have problems with sensors or buttons after replacing, and compare the options for original and non-original covers so you can make an informed choice.

Important: the procedure requires care. Mistakes can cause plumes to break, the adhesive layer to detach, or even the major components to fail. If you've never disassembled a smartphone, practice on an old device or watch video instructions before you start.

Preparation for replacement: tools and materials

Before you start disassembling the Redmi Note 8 Pro, make sure you have everything you need. Not even one tool can complicate the process or cause damage.

  • πŸ”§ Plastic blades (2-3 - for gently putting the lid on. Metal tools should not be used!
  • πŸ”₯ Hair dryer or thermo-air station for softening the glue. Optimal temperature: 70-90Β°C.
  • 🧲 Suction cups (2 pcs) - help to evenly lift the cover after heating.
  • πŸ”© Screwdriver. T3 and T5 β€” screw-off.
  • 🧴 Isopropyl alcohol (90%+) β€” frame-removal.
  • πŸ“¦ New back cover - original (article: MB-RN8P-BACK-COVER) or.
  • 🎨 Double-sided tape or glue B-7000 β€” lock-in.

The cost of the original cover from Xiaomi is about 1500-2500 rubles, depending on the color. Non-original options can be found for 500-1200 rubles, but their quality often leaves much to be desired: there may be problems with fitting under buttons or the camera. If you choose an analogue, give preference to trusted sellers with reviews.

⚠️ Warning: Do not use a household hair dryer at maximum power - this can melt plastic elements inside the smartphone.The optimal distance to the body: 5-7 cm, temperature - no higher than 90°C.

πŸ“Š What tools do you already have for repairs?
Plastic blades
Hair dryer/thermo-air station
Suction cups.
T3/T5 screwdrivers
None of the above.

Step-by-step: how to remove the old cover

The process of removing the back of the Redmi Note 8 Pro requires patience. The main difficulty is the uniform heating of the adhesive layer. If you overheat one area, the adhesive can freeze on the other, and the lid will not give in.

  1. Turn off your smartphone and remove it. SIM-The battery doesn't need to be turned off!
  2. Heat the edges of the body with a hair dryer for 2-3 minutes, holding it at an angle of 45Β°. Start at the bottom (near the connector). USB-C).
  3. Set the suction cups on the heated surface and pull up slightly. If the lid doesn't lend itself, repeat the heating.
  4. Put a plastic blade in the gap and carefully drive it along the edge, separating the glue. Don't push too hard, the glass can crack!
  5. Repeat the procedure for all sides until the lid is completely separated.

Once you remove the lid, you'll see the internal structure: the battery, the motherboard and the plumes. On the Redmi Note 8 Pro, the fingerprint scanner plume is glued to the lid, and you need to carefully disconnect it by pulling the connector (not the wires!). If you break this plume, the scanner will stop working.

Is the smartphone off?|Whether extracted SIM-map|All the tools are ready|Are the edges of the body evenly heated?|Is there a spare cover on hand?-->

If the glue is too strong, you can use the filaments to remove the glass (sold in repair kits).

Video example of using thread to remove the cover
There are a lot of videos on YouTube where the masters demonstrate the thread technique](https://youtu.be/Example: Shows the process on Redmi Note 8 Pro with comments on the force of pressing and angles of the tool.

Removal of old glue and preparation of frame

Once the lid is removed, the Redmi Note 8 Pro will remain adhesive, and it must be removed completely, otherwise the new lid will fall off unevenly or quickly.

  1. Wet the cotton-coated disc in isopropyl alcohol and wipe the frame. The glue should soften in 10-15 seconds.
  2. Carefully scrape the remains with a plastic spatula or a wooden stick.
  3. For hard-to-reach places (such as around volume buttons), use a toothpick.
  4. After cleaning, wipe the frame with a dry napkin and degrease it with alcohol.

Pay special attention to the areas around:

  • πŸ“· The main camera module (glue here often accumulates in lumps).
  • πŸ”‹ Battery connector (do not damage contacts!).
  • πŸ”Š Dynamics and microphone (at the bottom of the body).

⚠️ Attention: If you use glue B-7000 For a new lid, apply it point-by-point around the frame, receding 1-2 mm from the edges. Excess glue can leak into the housing and damage the plumes!

Cleaning methodPlusesCons
Isopropyl alcoholQuickly softens glue, safe for electronicsRequires re-treatment for persistent residues
Special solvent (e.g., solvent, 3M Adhesive Remover)Removes glue in 1 approach, suitable for complex contaminantsAggressive composition, can damage plastic parts
Mechanical cleaning (scapula/dental cleaning)No chemistry, complete control of the processRisk of scratching the frame or damaging contacts

Installation of a new back cover

Before installing a new cover, check it for compatibility:

  • πŸ” Camera holes, fingerprint scanner and Xiaomi logo should match perfectly.
  • 🎨 The color of the cover may slightly differ from the original (especially in non-original versions).
  • πŸ”‹ The switch and volume buttons must be pressed without backlash.

To fix the cover, you can use: 1. Bilateral Scotch (for example, 3M VHB) β€” It is easy to use, but less durable. 2. B-7000 β€” more reliable, but requires careful application. 3. Original adhesive layer (if you bought the lid in the kit).

Step-by-step installation:

  1. Apply glue or tape to the frame, avoiding areas around the speaker and microphone.
  2. Carefully apply the cover, starting from the top (from the camera side).
  3. Press the lid around the perimeter, paying attention to the corners.
  4. Place your smartphone under a press (for example, between two books) for 10-15 minutes.
  5. Check the functionality of the buttons and fingerprint scanner until full assembly!

πŸ’‘

If after installing the cover a little "plays" on the edges, warm it up with a hair dryer for 60Β°C for 1 minute - the glue is better distributed.

Assembly of a smartphone and checking the performance

After fixing the cover, it remains to assemble the Redmi Note 8 Pro in reverse order:

  1. Connect the fingerprint scanner plume to the connector on the motherboard.
  2. Install a metal shield (if you have previously removed it).
  3. Twisting all screws cross-cross to avoid distortions.
  4. Turn on your smartphone and check it out: πŸ”‹ Charging (connect the cable) USB-C). 🎡 Sound in the speaker and microphone. πŸ“Έ Operation of all cameras (main, wide-angle, macro). πŸ”“ Fingerprint scanner.

If there are problems after assembly:

  • The fingerprint scanner is not working. β†’ Check the connection of the plume or replace it.
  • The buttons are going down. β†’ The cover is installed incorrectly, regluing is required.
  • Extraneous noise in dynamics β†’ Maybe the glue got on the bar.

πŸ’‘

If after replacing the cover, the smartphone became worse to hold the charge, check if the battery did not deform during disassembly. Redmi Note 8 Pro is sensitive to battery pressure!

Frequent Mistakes and How to Avoid Them

Even experienced craftsmen sometimes make mistakes when replacing the lid, and here are the most common problems and solutions.

Mistake.Effects of consequencesHow to avoid
Hydrogen overheatingMelting plastic clips, damage to plumesKeep the hair dryer at a distance of 5-7 cm, the temperature is not higher than 90Β°C
Use of metal toolsScratches on the frame, short circuitOnly plastic blades and mediators
Incomplete removal of old glueUneven landing of the lid, quick dumpClean the frame with alcohol and toothpick
Strong pressure on the cover during installationCracks on the glass, deformation of the framePress the cover evenly, without effort.

Another common problem is adhesive detachment after 1-2 weeks, which occurs if:

  • 🧴 Used cheap glue or scotch.
  • 🌑️ The smartphone was operated at high temperatures (for example, in a car under the sun).
  • πŸ’¦ It got moisture under the lid.

To extend the life of a new lid:

  • πŸ›‘οΈ Use a cover with soft sides.
  • πŸ”₯ Avoid overheating (do not play heavy games when charging).
  • 🧼 Regularly clean the edges of the cover from dust with an alcohol napkin.

Comparison of original and non-original cover

When choosing the back cover for the Redmi Note 8 Pro, many people are faced with the dilemma of overpaying for the original or saving on the analogue?

ParameterThe original coverNon-original (quality)Unoriginal (cheap)
Price, β‚½1500–2500800–1200300–600
Correspondence of holesPerfect.Minimum deviations (up to 0.5 mm)Noticeable gaps, camera displacement
Glass qualityHardened, scratch-resistant.Thin, may crack when fallingVery fragile, quickly covered with scratches
Color rendering100% match with the originalMinor differences in shadeNoticeable difference (e.g., "black" looks gray)
Term of service2–3 years6–12 months1-3 months

Our verdict: The original lid is worth the price if you plan to use your smartphone for a long time. Quality analogues (such as from brands Olukai or Kwmobile) are suitable for temporary replacement or if the budget is limited. Cheap lids are not recommended to buy - they often fall off in a few weeks.

πŸ’‘

When buying a non-original lid, be sure to check the reviews of the seller. Often, under the guise of "quality" analogues, they sell defective products with defective glass.

FAQ: Answers to Frequent Questions

Can I replace the hair dryer?
Theoretically, yes, but it's going to make it much harder. Without heating, the glue won't soften, and you risk breaking the lid or damaging the plumes: πŸ”₯ Using hot water (put your smartphone in a warm water bag for 5 minutes) is risky for electronics! 🧊 Apply cold (freeze your smartphone for 1 hour) - the glue becomes brittle, but the glass can crack. It is better to borrow a hair dryer from friends or buy an inexpensive thermal air station (from 1000). β‚½).
How long does it take to replace the cover?
If you've had experience, 30 to 40 minutes. If you're doing it for the first time, you'll have 1.5 to 2 hours: ⏳ Careful compartment of the cover (10-15 minutes). ⏳ Cleaning the frame from glue (15-20 minutes). ⏳ Drying and fixing of the new cover (30 minutes under the press).
What if the fingerprint scanner does not work after the replacement?
The problem is 90% of the time that the plume is damaged or not connected properly: MB-RN8P-FINGERPRINT-CABLE, price ~500 β‚½). Check if the glue hits the connector contacts, clean them with alcohol, and if the scanner is still not working, the scanner board may have been damaged, and then you'll need to replace it.
Can you use superglue instead of the B-7000?
Absolutely not! Superglue (like "Moment") has several critical flaws: πŸ”₯ It releases heat when solidified, which can damage plumes. 🧊 It becomes fragile over time and crumbles. 🚫 It is almost impossible to remove without damaging the frame.Only specialized adhesives are suitable for the Redmi Note 8 Pro: B-7000, LOCA (for glass) or double-sided tape 3M VHB.
Where to buy the original cover for the Redmi Note 8 Pro?
Official covers are sold in: πŸ›’ Xiaomi service centers – a guarantee of originality, but a high price. 🌍 AliExpress (sellers rated 98%+) β€” cheaper, but delivery is 2-4 weeks. MB-RN8P-BACK-COVER. 🏬 Parts stores (e.g. FixPriceService, MobiParts) - check for certificates. Beware of counterfeits! The original lid has: 🏷️ Xiaomi logo with clear edges (it is blurred on fakes). πŸ” Microperforation around the speaker (copies often don’t have it). πŸ“ Perfectly flat edges without burrs.