Disassembly Xiaomi Redmi 6 Pro: how to safely remove the back cover without damage

Removing the back cover of the Xiaomi Redmi 6 Pro is a challenge that owners face when replacing a battery, repairing a camera or cleaning connectors. Despite its apparent simplicity, the process requires care: a plastic panel is mounted on latches and duct tape, and improper actions can lead to cracks in the screen or plumes. This model, released in 2018, has characteristic design features that distinguish it from newer Xiaomi smartphones with metal cases.

Many users mistakenly believe that it is enough to put a mediator on the lid for disassembly β€” in practice, this can damage antenna contacts or the flexible plume of the fingerprint scanner. In this article, we will analyze 3 proven methods of dismantling (with or without tools), talk about typical errors and give recommendations for preparing the workplace. If you have never taken a smartphone before, start by studying the structure of the Redmi 6 Pro case β€” this will help to avoid annoying breakdowns.

Before starting work, evaluate the feasibility of disassembly: if the warranty is still valid, it is better to contact the service center. Self-repair cancels Xiaomi warranty obligations. Also note that after removing the lid, the leakage of the case is violated, which can lead to dust or moisture entering the device.

Preparation for disassembly: tools and security measures

To safely remove the back cover of the Redmi 6 Pro, you'll need specialized tools. Don't try to get by with improvised tools, which in 90% of cases ends in damage to plastic latches or scratches on the body. Here's the minimum set that professional craftsmen recommend:

  • πŸ”§ Plastic mediator or suction cup (for initial lid suction) Metal blades leave traces!
  • πŸ”¨ Setting screwdrivers T3-T5 (The Redmi 6 Pro uses Torx-type screws. T3.
  • 🧲 Magnetic mat or container (to avoid losing small parts) The screws in the smartphone are tiny and easy to drop.
  • πŸ”₯ Hair dryer or thermo-air station (to soften the glue) The heating temperature must not exceed 60-70Β°C.
  • 🧴 Isopropyl alcohol (90%+) (Acetone or solvents cannot be used, they damage plastic!

Before disassembling, be sure to turn off the smartphone and remove SIM-The battery in the Redmi 6 Pro doesn't have a physical switch, so if you carelessly handle the mediator, you run the risk of closing the contacts. Work on a flat, well-lit surface, and an antistatic mat table is perfect.

⚠️ Warning: If you have recently dropped your phone or it has been in water, disassembly can aggravate damage.In such cases, first diagnose the device in the service - corrosion on the board or cracks in the case require professional intervention.

For convenience, take a picture of the back cover before disassembly, which will help to correctly position the antenna contacts when reassembled. In Redmi 6 Pro, they are glued to the lid and often come off when sloppy dismantling.

πŸ“Š You’ve already taken out smartphones before?
Yes, repeatedly.
Yeah, but just your model.
No, it's my first experience.
I prefer to go to the service.

The structure of the case Xiaomi Redmi 6 Pro: what you need to know before disassembling

The Redmi 6 Pro is a low-end Xiaomi model with a plastic body that makes it easier and harder to disassemble, on the one hand, plastic is less susceptible to deformation compared to metal, on the other hand, latches are fragile and can break under excessive pressure.

  • πŸ“± Back cover - is attached to 12 latches around the perimeter and adhesive tape in the battery area.
  • πŸ”‹ Battery - glued to the middle layer of the body, has a flexible plume to turn off.
  • πŸ“‘ Antenna contacts are thin metal strips soldered to the lid. They come off easily!
  • πŸ”Œ The fingerprint scanner plume - passes under the battery, attached to the motherboard.

The thing about this model is that there are no screws on the outer cover, and all the fasteners are hidden underneath, so it's pointless to try to unscrew something before you remove the panel, and also look at the location of the microphone and the speaker, which are at the bottom of the case, and they can get hurt if you're not neatly undercoat by the mediator.

Body elementMaterialsRisks in disassemblyDismantling tips
Back cover.Plastic (polycarbonate)Cracks, snaps of latchesHeat the hair dryer for no more than 30 seconds
Antenna contactsCopper with sprayBreaking the mediator's underdogUnplug the lid from the corners, not from the middle
BatteryLithium-polymerPuncture, swelling with mechanical influenceDon't push the battery center.
The fingerprint scanner plumeFlexible printed circuit boardContact breakTurn off the battery before manipulation

If your goal is to replace the battery, consider that in the Redmi 6 Pro, it is glued to the body with double-sided tape. Removing it will require a special battery blade or a thin guitar string. Do not use a knife under any circumstances - the risk of puncturing the battery is too high!

πŸ’‘

Before heating the cover with a hairdryer, stick paint tape on the screen - this will protect it from accidental scratches when the mediator slips.

This is considered the safest method for the Redmi 6 Pro, because it minimizes the risk of damage to the latches. The glue that glues the lid to soften when heated, allowing it to be carefully separated without undue effort, you will need a temperature-adjusted dryer or a thermo-air station.

Step-by-step:

  1. Set the dryer at 60-70Β°C (not higher!) and too hot air can warp the plastic.
  2. Heat the lid around the perimeter for 2-3 minutes, paying special attention to the corners - there are concentrated the main latches.
  3. While the lid is warm, attach a suction cup to its surface (closer to the lower edge, where the charging connector is located).
  4. Carefully pull the suction cup up, while putting the lid on with a plastic mediator at the junction with the body.
  5. Once you have a crack, use a mediator around the perimeter to separate the latches. Take your time, the plastic can crack!

If the lid doesn't respond the first time, repeat the heat for another 1-2 minutes. Don't apply excessive force - in the Redmi 6 Pro, the fingerprint scanner plume runs just under the suction cup attachment. If this plume breaks, the scanner will stop working, and it will cost 30-40% of the cost of the phone to replace it.

⚠️ Warning: If you see that the antenna contacts have come off after you remove the lid, don't try to glue them with superglue! This will disrupt conductivity. Use a special conductive glue or contact the service.

β˜‘οΈ Preparation for hair dryer lid removal

Done: 0 / 5

Method 2: Unheating (for power users)

If you don't have a hair dryer, you can try to remove the lid in a cold way, but this requires more care.This method is suitable for the Redmi 6 Pro with already weakened latches (for example, after previous disassemblies) or if the glue has dried over time.

Algorithm of action:

  1. Insert a plastic mediator into the gap between the lid and the body at the headphone jack (top left corner), and the latches are less durable.
  2. Carefully drive the mediator along the side of the face, alternately snapping the mounts, you will hear the characteristic clicks.
  3. Once you have separated the 2-3 latches from one side, move to the opposite corner. Don't try to remove the lid right away, the risk of breaking it is too high.
  4. When resistance appears, do not push harder - it is better to go back to the beginning and try again from a different angle.

The main danger of this method is damage to the antenna contacts that are located along the upper and lower edges of the Redmi 6 Pro. If you feel that the lid is stuck in a certain place, do not make an effort, you better use a dryer to locally heat the problem area.

The average cold disassembly time is 15-20 minutes, and if it's delayed, it's a signal that the glue is still too strong to be heated.

What to do if the lid is cracked?
If the lid has cracks but it's still holding on to the latches, don't panic. Get it out carefully, then seal the cracks from the inside with a thin layer of epoxy glue (don't apply it to the outside!). Once the lid is dry, it will remain stiff, but the housing will be leaky, in which case we recommend replacing the lid with a new one (original article - MDY09202020).

Method 3: Use of string for batteries (emergency version)

This is applicable if the lid is so tightly glued that neither the hair dryer nor the mediator helps. The battery string (or a thin guitar string with a diameter of 0.1-0.15 mm) allows the adhesive to be cut evenly throughout the perimeter. However, the method requires extreme caution - if you move wrongly, you can damage the plumes or antenna contacts.

Implementation technique:

  1. Put the string under the lid in one of the corners (best of all - at the charging connector).
  2. Hold the string with both hands and carefully saw it with glue as you move along the edge of the body. Don't press it, the string must slide freely.
  3. Once you've walked 2/3 of the perimeter, try to separate the lid with a mediator, and the remaining glue can be removed with alcohol.

The advantage of this method is that it has minimal risk of latch damage, because the string passes between the lid and the body without touching the plastic elements, but it requires patience, taking up to 30-40 minutes to complete the procedure.

⚠️ Warning: Never use a line or metal wire for this purpose! The line is too thick and can damage the plumes, and the wire scratches the body and creates a risk of closure.

Common Mistakes and How to Avoid Them

Even experienced users sometimes make mistakes when disassembling the Redmi 6 Pro, which lead to expensive repairs.

  • πŸ”¨ Using metal tools - leaves scratches on the case and can close contacts on the board. Always use plastic or wooden mediators.
  • πŸ”₯ Overheating of the cover with a hair dryer - temperature above 80Β°C deforms plastic and can melt the adhesive bases of antennas. Control the heating with your hand (the cover should be warm, but not hot).
  • πŸ”‹ Press on the battery β€” in the Redmi 6 Pro, the battery covers almost the entire area of the case. Pressure can cause it to swell or even catch fire.
  • πŸ“‘ Breaking off antenna contacts -- if they're broken, it's almost impossible to restore them at home.

Another common mistake is the wrong assembly, and once you replace the parts, you forget to plug the fingerprint scanner plume or you loosely close the latches, which causes the lid to fall back.

  • Are all the plumes connected (especially the scanner and cameras)?
  • Whether all 12 latches are closed (check by walking your finger around the perimeter).
  • Are there any gaps between the lid and the body (if there is one, repeat the heat with a hairdryer and press the lid).

πŸ’‘

If the phone doesn't turn on after assembly, check the battery and power plume connection first. In 80% of cases, the problem lies in a loose contact, not in a board breakage.

What to do after removing the cover: further actions

When the lid is finally removed, the internal structure of the Redmi 6 Pro will open before you. Depending on the purpose of disassembly, follow these recommendations:

  • πŸ”‹ Battery replacement: Disconnect the battery plume from the motherboard (use a plastic spatula). Put a string or special spatula on the battery starting at the top edge. Remove the glue residues with alcohol and glue the new battery to a two-way tape.
  • πŸ“· Camera Repair: Unscrew the screws that lock the camera module (usually) 2-3 screw T3). Carefully unplug the plume. Don't pull the wires - they're brittle! When you replace, clean the contacts of the new module with alcohol before installing them.

Dust cleansing

  1. Use a soft brush or a balloon with compressed air.
  2. Do not blow with your mouth – moisture from your breath can condense on the board.
  3. To clean the contacts, use a cotton swab dipped in alcohol.

Remember that the Redmi 6 Pro has a single board design – most components (processor, memory, communication module) soldered to the motherboard. their replacement at home is almost impossible and requires professional equipment (soldering station, microscope).

FAQ: Frequent questions about the dismantling of Xiaomi Redmi 6 Pro

Can I take off the lid without a hair dryer?
Yes, but the risk of damage to the latches or antenna contacts is much higher. If the glue is fresh (the phone has not been disassembled before), it is extremely difficult to do without heating. Alternatively, you can use hot water in a bag: put the phone in a sealed bag with warm water (50-60 Β° C) for 5 minutes, this will soften the glue. However, the method is risky: when moisture enters the case, the phone can fail.
How do you know if the battery needs to be changed?
Signs of battery wear in the Redmi 6 Pro: The phone runs out in 2-3 hours with moderate use. The battery is swollen (visible by the lid raised or the screen); the device turns off at a charge level of 20-30%. When charging, the phone gets very hot; the average battery life is 2-3 years; After 500 charging cycles, the capacity drops by 30-40%.
What if the fingerprint scanner does not work after the assembly?
The scanner's plume is probably broken off or not connected correctly, and take the phone apart and check if the plume is connected to the motherboard connector (it's under the battery), if there's any visible damage to the plume (breaks, curls), if the lid is tightly closed, sometimes the plume is clamped down when it's assembled, if the plume is damaged, it can be replaced (the original one's MDY092031), but it requires soldering.
How to unplug old double-sided scotch from the battery?
Use isopropyl alcohol (90%+) or Kalosha gasoline: Apply a few drops to a cotton cotton disc. Apply the disc to the residues of the tape for 1-2 minutes. Carefully scrape the softened glue with a plastic blade. Don't use acetone or solvents - they damage the plastic of the case! After cleaning, wipe the surface with a dry napkin.
Where to buy parts for Redmi 6 Pro?
Original parts can be found on AliExpress (search by article, for example, MDY092020 In stores like Fix-Price Repair or Chip and Deep, on sites like Avito (look for sellers with higher ratings). 95%). The cost of the original cover β€” 800-1200 β‚½, battery β€” 1000-1500 β‚½. Be careful with cheap Chinese counterparts: they often have less capacity or are incompatible with firmware.