We analyze Xiaomi Redmi Note 8 Pro: how to carefully remove the screen at home

Xiaomi Redmi Note 8 Pro is one of the most popular mid-range smartphones, but even it is not immune to screen breakdowns. Cracks, broken pixels or a broken touchscreen make users think about replacing the display module. However, service centers cost a round sum, and the warranty (if it is still valid) does not cover mechanical damage. In this article, we will discuss how to remove the screen on the Redmi Note 8 Pro without risking damage to internal components.

It's important to understand that disassembling a smartphone is not just about unscrewing the screws. The Redmi Note 8 Pro display module is glued to the body with a special adhesive, and underneath it hides plumes, batteries and other vulnerable elements. A mistake at any stage can damage the motherboard, break contacts or even burn the battery. If you've never disassembled your smartphones, you'd better practice on an old device or consult a specialist.

In this instruction you will find:

  • ๐Ÿ”ง Step-by-step with photo and video examples;
  • ๐Ÿ› ๏ธ List of necessary tools (and how to replace them in the last resort);
  • โšก Subtleties of working with the battery and plumes;
  • ๐Ÿ’ก Tips to Prevent Mistakes That 90% of Newcomers Make;
  • ๐Ÿ”„ What to do if the screen does not turn off after disassembly.
๐Ÿ“Š Have you ever repaired your smartphone yourself?
Yeah, I changed the screen.
Yeah, dust cleaned.
Yeah, it's a battery replacement.
No, I'm afraid to hurt you.
No, I always go to the service.

Preparation for disassembly: tools and security measures

Before you start dismantling the screen, make sure you have everything you need. The Redmi Note 8 Pro is not the most difficult to disassemble smartphone, but without the right tools, you risk damaging the body or internal components.

  • ๐Ÿ”ฉ Set of screwdrivers (cross-haul) PH00, flat 1.5 mm, five-pointed Y00 screw-tray SIM);
  • ๐Ÿ“ฑ Plastic mediators (or guitar mediators) to separate the screen;
  • ๐Ÿ”ฅ Dryer or thermo-air station (at least 500 W) for softening the adhesive;
  • ๐Ÿงฒ Screen suction cup (diameter 5-7 cm);
  • ๐Ÿ”‹ Battery insulation tape or capton;
  • ๐Ÿงด Alcohol or contact cleaner (e.g., contact cleaner, IPA 99%);
  • ๐Ÿ“ฆ Container for screws (so as not to lose small parts).

If you don't have professional tools, some of them can be replaced with tools at hand, like a plastic card instead of a mediator, and a wide looped tape instead of a sucker, but remember, the less suitable tool you use, the greater the risk of damaging your smartphone.

โš ๏ธ Warning: Never use metal objects (knives, screwdrivers) to separate the screen! OLED-a matrix that will lead to irreversible damage.

Also prepare the workplace:

  • ๐Ÿช‘ Work at a table with good lighting;
  • ๐Ÿงน Remove all unnecessary items (especially metal ones);
  • ๐Ÿ”Œ Disconnect the smartphone from charging and completely drain the battery (up to 0%) โ€“ this minimizes the risk of short circuit;
  • ๐Ÿ“ธ Take a picture of each step of disassembly โ€“ this will help to properly assemble the smartphone back.

๐Ÿ’ก

If you do not have a hair dryer, you can use hot water in the bag (temperature). ~60ยฐC. Apply the packet to the edge of the screen for 2-3 minutes - the glue will soften, but be careful with moisture entering the body!

Step 1: Turn off your smartphone and remove the back cover

The first step is to turn off the power and remove the back panel, and even if the screen is broken and the smartphone does not respond to touch, it must be turned off correctly to avoid data damage.

If the display is working:

  1. Press the power button for 5-10 seconds;
  2. Select Turn Off (if the menu does not appear, hold the button until completely disabled).

If the screen is not responding:

  1. Hold the power button. + Volume up 15-20 seconds โ€“ this will force the device to restart;
  2. If the smartphone vibrates but does not turn off, remove SIM-card and memory card (tray on the left).

Now we're going to take the back cover off. In the Redmi Note 8 Pro, it's mounted on the latches and glue, so we're going to be careful.

  1. Heat the hair dryer of the edge of the cover (temperature) ~80ยฐC, distance 5-7 cm) for 1-2 minutes;
  2. Insert a plastic mediator into the gap between the lid and the case (start at the lower right corner where the tray is located). SIM);
  3. Carefully drive the mediator around the perimeter, snapping the clamps. Do not force - if the lid does not respond, warm up again;
  4. Then, when you have to remove the lid, put it aside (it will be useful for the reverse assembly).

โš ๏ธ Attention: There's an antenna block under the back cover, a thin metal plate, and don't pull it by the wires, they're soldered to the motherboard!

What to do if the lid is not removed?
If the lid still does not respond after heating, check: - Have you overheated the body (optimal temperature - 70-90)ยฐC, not higher!); - Are there any unnoticed latches (especially in the area of the chamber); - Did not the glue hit the screw thread (in this case, alcohol will help).

Step 2: Turn off the battery and plumes

Once you remove the back cover, you'll see the battery, the motherboard and the plumes. First rule: never touch the board or the contacts without first turning off the battery! Even a discharged battery can cause a short circuit if the contacts are accidentally closed.

Instructions for unsetting:

  1. Find the battery connector (usually located at the bottom of the board, marked in black or red);
  2. Carefully put the connector on a plastic picker or tweezers.
  3. Close the connector with tape or a hood so as not to accidentally close contacts during further work.

Now you can disconnect the plumes of the display and touch screen:

  • ๐Ÿ”Œ Screen plume โ€“ a wide flexible cable running from the display module to the motherboard (usually fixed with a metal latch);
  • ๐Ÿ‘† Touchscreen plume - thinner, located next to or under the screen plume;
  • ๐Ÿ”Š Dynamic plume (if it interferes) - disconnects in the same way as the rest.

To disconnect the plumes:

  1. Then, put the metal in the back (if you have one).
  2. Carefully pull the plume with tweezers, holding on to the plastic part (not for contacts!);
  3. Mark the plumes with tape or marker, so as not to confuse the assembly.
schleifeLocation.Features of disconnection
Display.Top of the board, under a metal latchWide, fragile - don't rot!
touchscreenNext to the display plume, often gluedThin, easily torn with careless extraction
BatteryLower board, black connectorTurn it off first!
Camera.Top left of the boardYou can not turn off if it does not interfere.

โ˜‘๏ธ Preparation for screening

Done: 0 / 4

Step 3: Heating and separating the screen from the body

The most critical step is to separate the display module, and it's glued to the frame of the smartphone with double-sided tape, which holds very tightly at room temperature, and to safely remove the screen, you need to:

  1. Warm up the glue around the perimeter of the screen with a hairdryer (temperature 70-90)ยฐC, distance 5-7 cm);
  2. Heat evenly, starting from one corner and gradually moving along the edge;
  3. Do not hold the hair dryer in one place for longer than 10 seconds - you can damage it OLED-plume.

After heating:

  1. Stick the suction cup to the bottom of the screen (where the Home button is located);
  2. Carefully pull the sucker up, creating a small gap;
  3. Insert a plastic mediator into the gap and slowly lead it along the edge of the screen, separating the glue;
  4. If the screen fails, warm up the problem area again.

Important: don't try to pull the screen off by force! The glue can hold unevenly, and if you move sharply, you will damage:

  • ๐Ÿ“ฑ plumes (especially touchscreen - it is thinner than paper);
  • ๐Ÿ”‹ Battery (if it swells, the risk of puncture increases);
  • ๐Ÿ–ฅ๏ธ Motherboard (when the screen falls on it).

๐Ÿ’ก

If the screen is cracked, stick a wide tape tape on it before heating - this will prevent the fragments from scattering and protect your hands.

Step 4: Complete removal of the display module

When the screen is separated from the body by 2-3 mm around the perimeter, you can proceed to its complete removal. OLED-matrix, but:

  • ๐Ÿ“ž Speaker (at the top of the column);
  • ๐Ÿ”ฆ Approximate and illumination sensor;
  • ๐Ÿ“ถ Antenna contacts (sides of the frame).

Instructions for removal:

  1. Continue to separate the screen with the mediator, deepening by 5-7 mm;
  2. If you feel resistance, check if there are any unconnected plumes left.
  3. When the screen is 70-80% apart, gently lift it over the top edge (where the front camera is located).
  4. Place the screen on the table with the display down so as not to damage the matrix.

Now we can start cleaning the case of glue residues.

  • ๐Ÿงด Isopropyl alcohol (IPA) โ€” It dissolves the glue without damaging the plastic;
  • ๐Ÿงผ Soft brush or cotton swab;
  • ๐Ÿงท Tweezers to remove large pieces of glue.

โš ๏ธ Warning: Do not use acetone or acetone-based solvents โ€“ they can damage the motherboard coating and antenna tracks!

Frequent Mistakes and How to Avoid Them

Even experienced craftsmen sometimes make mistakes when disassembling the Redmi Note 8 Pro. Here are the most common problems and ways to prevent them:

Mistake.Effects of consequencesHow to avoid
Overheating of the screen with a phenomeDamage. OLED-matrixes (the appearance of broken pixels)Keep the hair dryer at a distance of 5-7 cm, do not heat one point longer than 10 seconds.
Use of metal toolsPuncture of plumes or battery, short circuitWork only with plastic or wooden mediators
Undisconnected batteryShort circuit when touching the board, failure of the power controllerAlways turn off the battery first.
Sharp separation of the screenBreaking the plume of the touchscreen or displayHeat the glue evenly, use a suction cup for smooth lifting
Moisture on the boardCorrosion of contacts, unstable operation of the smartphoneWork in a dry room, do not use liquid solvents in large quantities

If you've already made a mistake, don't panic. In most cases, you can fix the situation:

  • ๐Ÿ”Œ The slack break - you can replace the plume separately (costs) ~300-500 rubles);
  • ๐Ÿ”‹ Battery damage โ€“ requires mandatory replacement (do not use a bloated battery!);
  • ๐Ÿ“ฑ Broken pixels after overheating - if there are few, you can use the smartphone further.
How to check if the motherboard is damaged?
After assembly, turn on the smartphone and check: - Does the vibration work (means the power controller is working); - Does the charging indicator burn when connecting the cable; - Does the smartphone determine the power controller? SIM-map and network (check antenna unit) If something is not working, contact the service for diagnosis.

Build a smartphone after replacing the screen

With the old screen successfully removed, you can install a new.The Redmi Note 8 Pro build process is reverse disassembly, but there are a few nuances:

  1. Before installing a new screen, clean the frame of the case from the remnants of old glue (use alcohol and a napkin without pile);
  2. Apply a new bilateral scotch (or liquid glue) B-7000) Don't put glue on the screen!
  3. Carefully connect the plumes in reverse sequence (first touchscreen, then display);
  4. Make sure that all the latches of the connectors are fixed (they should click).
  5. Press the screen against the body, starting from the top, and warm up with a hair dryer (temperature). ~50ยฐC) for better adhesion of glue.

After assembly:

  • ๐Ÿ”‹ Connect the battery and try to turn on the smartphone without the back cover (to make sure everything works);
  • ๐Ÿ“ถ Check the touchscreen (responsive, multi-touch), display (colors, broken pixels), speaker and microphone;
  • ๐Ÿ”ง If everything works, install the back cover and fix with latches (heat up with a hair dryer if necessary).

If the screen does not turn on or does not work correctly after assembly:

  • ๐Ÿ”„ Check the density of the plumes (sometimes they fall out during assembly);
  • ๐Ÿ”Œ Make sure the battery is fully charged (a discharged battery may not provide enough power to power on);
  • ๐Ÿ“ฑ Try Forced Reboot (Power button) + Volume up for 15 seconds).

๐Ÿ’ก

If the smartphone turns on after the screen is replaced, but the touchscreen does not work, most likely the plume is damaged or the new display module is defective. 90% of the time the problem is solved by replacing the plume (cost). ~300-500 rubles).

FAQ: Answers to Frequent Questions

Can I take off the screen without a hairdryer?
Theoretically, yes, but it's extremely risky. Without heating, the glue won't soften, and you're very likely to damage the plumes or the matrix: ๐Ÿ”ฅ Use hot water in the bag (temperature) ~60ยฐC, apply to the edge of the screen for 2-3 minutes); ๐ŸงŠ Place your smartphone in the freezer for 10-15 minutes โ€“ the glue will become more fragile (but it can damage the battery!). It is better to still approve a small dryer (you can buy an inexpensive one for 500-1000 rubles).
How much does it cost to replace the screen in the service?
The cost depends on the type of display module and region: ๐Ÿ“ฑ Original screen (with touchscreen) โ€“ 5000-8000 rubles; ๐Ÿ“ฑ High-quality copy (with good color rendering) โ€“ 3000-5000 rubles; ๐Ÿ“ฑ Budget copy (can be dull or with a bad touch screen) โ€“ 1500-3,000 rubles; ๐Ÿ”ง Work of the master โ€“ 1000-2000 rubles. Self-replacement will cost less, but without experience you risk damaging the smartphone.
What if the screen does not work after changing?
The reasons can be different: Unconnected plume โ€“ check if it sits tightly in the connector; Damaged plume โ€“ check for breaks or bent contacts; Faulty display module โ€“ if the screen is new, possibly a marriage; Firmware problems are rare, but they do (resetting to factory settings helps). Try reconnecting the plume first. If it doesn't work, replace it separately (stuffs). ~300-500 rubles).
How to check if the screen is installed?
The original display of the Redmi Note 8 Pro has several signs: ๐Ÿ” Serial number on the plume (starts with MD or MI); ๐ŸŽจ Color rendering โ€“ the original has more saturated and natural colors; โ˜€๏ธ Brightness โ€“ the original screen is brighter (up to 500 nits); ๐Ÿ‘† Oleophobic coating โ€“ the original fingers slide better, the traces of fat are less noticeable. You can also check through the service menu: type ##4636## and select Screen Testing.
Can I use a smartphone with a cracked screen?
Technically yes, but it is dangerous and uncomfortable: โšก Risk of electric shock โ€“ if the crack is deep, you can close contacts; ๐Ÿฉน Cuts โ€“ glass fragments can injure your fingers; ๐Ÿ“‰ Deterioration of the touchscreen โ€“ over time, the sensor may stop responding; ๐Ÿ’ง Moisture intrusion - cracks break the tightness, which leads to corrosion. If the crack is small and does not interfere, you can temporarily seal it with tape (for example, 3M Scotch, but replace the screen as soon as possible.