How to gently open the cover Xiaomi Redmi Note 8T: instructions with photos and videos

Removing the back cover of the Xiaomi Redmi Note 8T smartphone is a challenge that owners face when replacing the battery, dynamics or repairing plumes. Despite the apparent simplicity, the process requires caution: the plastic panel is attached to the latches and adhesive layer, and improper actions can lead to cracks or damage to flexible cables. In this article, you will find a step-by-step photo instruction, a list of necessary tools and key nuances that will help to avoid errors.

Redmi Note model 8T (The codename willow is different from the standard Note 8. NFC-module and other arrangement of antenna lines, but the design of the rear panel is identical. If you have not previously been engaged in smartphone repair, we recommend first familiarize yourself with frequent questions at the end of the article – there are broken down typical problems, for example, what to do if the lid does not lend itself or the latches break.

Preparation: tools and modalities

Before you start disassembling, make sure you have everything you need, and using the wrong tools is the main cause of damage to the body or internal components, for example, metal screwdrivers can leave scratches on the plastic, and too thick mediators can break latches.

Here is the minimum set you will need:

  • πŸ”§ Plastic mediator (or guitar mediator 0.3–0.5 mm thick) – for detachment of the cover.
  • πŸ”₯ Hair dryer (construction or household with a mode of "hot air") - for softening the glue.
  • πŸ”© The screwdriver (PH00 or PH0) β€” screw-twisting.
  • 🧲 Suction (optional) - helps to lift the cover after heating.
  • πŸ“¦ Container for screws - so as not to lose small details.

Also prepare the workplace:

  • πŸͺ‘ Work at a table with good lighting.
  • 🧹 Remove carpets or fabrics – screws are easily lost.
  • πŸ”Œ Turn off your smartphone and remove it. SIM-card with a memory card (if installed).
πŸ“Š You have already tried to disassemble the smartphone yourself?
Yes, repeatedly.
Yes, but without success.
No, it's my first experience.
I prefer to go to the service.

⚠️ Warning: Do not use knives, blades or metal objects to separate the lid.Even a small pressure can damage plumes under the lid, especially flexible battery cable or antenna contacts.

Step 1: Heating the cover to soften the glue

The glue that glues the Redmi Note 8T back becomes elastic at ~60–70Β°C. Without preheating, it is almost impossible to separate the lid β€” you either break the latches or leave traces on the plastic. Use a dryer at medium power, holding it at a distance of 10–15 cm from the body.

Procedure:

  1. Direct hot air to the edges of the lid (especially around power and volume buttons) for 2-3 minutes.
  2. Periodically check the temperature of the body with your hand - it should be hot, but not burning.
  3. Do not hold the hair dryer in one place for more than 10 seconds to avoid melting the plastic.

If you do not have a hair dryer, alternative methods can be used:

  • πŸ”₯ Warm air from the kettle (less effective, but suitable in extreme cases).
  • β˜€οΈ Heat in the sun (in summer, at a temperature higher) +30Β°C) – leave the phone in direct light for 10-15 minutes.

πŸ’‘

If the lid still doesn't respond, repeat the heating again, paying attention to the corners, and the glue in these areas often remains hard.

Step 2: Separation of the cover by a mediator

After heating, proceed to a gently separate cover. Start at the bottom edge (near the USB-C connector), where the latch is smaller, and gradually move around the perimeter. Use a plastic mediator, inserting it under the lid to a depth of no more than 2-3 mm - deeper and you risk damaging the plumes.

Step-by-step technique:

  1. Insert the mediator in the gap between the cover and the case at the USB-C connector.
  2. Carefully lead it along the edge, swaying slightly from side to side.
  3. As soon as you hear the characteristic snap of the latch, move to the next section.
  4. Be especially careful in the area of the volume and power buttons - there are plumes.

If the lid is "sucked" back, use a suction cup (if any) or lock the mediator in one of the corners to keep the slit open.

Make sure all latches around the perimeter are snapped.|Check if the lid is clinging to the battery plume.|Do not pull the lid with force - if it does not remove, warm up again.|Put down the mediator if you feel resistance.-->

⚠️ Warning: If you hear a crack when you're detaching the lid, stop the process immediately. This could mean that the mediator has hit the plume or the latch has broken.

Step 3: Disconnect the battery plume

When the lid is removed, the first thing you need to do is turn off the battery to avoid short circuits, and the power plume is located at the top of the phone (under the metal plate) and is attached to a JST 1.0 connector.

  1. Carefully tuck the connector with a plastic spatula or nail.
  2. Pull the black tongue (if any) or simply separate the plume from the nest.

Important: Don't use metal tools to turn off the plume, it can cause a circuit! If the connector is "stiffened", sway it slightly left-right, without making much effort.

What happens if you don't turn off the battery?
When you disassemble it further (for example, when you change the speaker or camera), accidental touch with a screwdriver can cause a short circuit, which can burn out the power controller or damage the motherboard, in some cases the phone stops turning on completely.

Step 4: Removal of the metal plate (if required)

Under the cover of the Redmi Note 8T is a metal plate that covers the connectors of the plumes and screws, it is attached to 5 screws (the size of PH00) and can have additional latches to remove it:

  1. Unscrew all the screws and fold them in a container (they vary in length!).
  2. Put the plate around the corner with a plastic spatula.
  3. Lift it, checking to see if it's clinging to the plumes.

Pay attention to the location of the screws:

VintLength (mm)Location
13.5USB-C connector.
2 and 32.8On the sides of the battery
4 and 52.5Top part (near the camera)

Don’t confuse screws when back-assembling – using a screw that is too long in the wrong place can damage the board!

Common Mistakes and How to Avoid Them

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

1. Broken lid latches

Reason: too much pressure from the mediator or trying to tear off the cover without heating.

Solution: If the latches break, use double-sided tape (e.g. 3M 9448A) to lock the lid when reassembling.

2. Damaged battery plume

Reason: careless disconnection of the connector or touching with a screwdriver.

Solution: Before you turn off, take a picture of the plume's location. If the contacts are bent, straighten them gently with tweezers.

3. Scratches on the hull

Reason: use of metal tools or a mediator with burrs.

Solution: Wrap the tip of the mediator with tape or use special plastic blades.

πŸ’‘

If you are not sure about your skills, it is better to contact the service.The cost of replacing the back cover of the Redmi Note 8T in the official centers of Xiaomi is ~ 1,500-2,500 rubles (depending on the region).

Reverse assembly: nuances

Building a phone after repair is as important as disassembling it.

  • πŸ”„ Check all the plumes before fixing the lid - they should lie flat, without inflections.
  • πŸ”© Twisting the screws cross-cross to avoid skewing the plate.
  • πŸ”₯ Heat the adhesive layer before sticking the lid (if using a new tape).
  • πŸ“± Test the phone to full build: turn it on and check the sensor, buttons, camera.

If you have replaced the battery, calibrate it after assembly:

  1. Charge the phone to 100%.
  2. Turn off the charging and use until full discharge.
  3. Repeat the cycle 2-3 times.

Frequent Questions (FAQ)

Can I open the lid without a hair dryer?
Theoretically, yes, but the risk of damage is much higher. The glue on the Redmi Note 8T is quite strong, and without heating you'll break the latches. The alternative is to use isopropyl alcohol (90%+), which dissolves the glue. Put it around the perimeter of the lid and wait 5-10 minutes, then try to separate with a mediator.
The lid is removed, but the battery plume does not turn off - what to do?
If the connector is "staying," don't pull it by force. Try: gently swing the plume left-right. Apply a drop of alcohol on the connector and wait 1-2 minutes. Use a plastic blade to lift the connector evenly. If nothing helps, you may need to replace the plume (cost ~300-500 rubles).
After assembly, the phone does not turn on - what is the reason?
Probable causes: πŸ”Œ Unconnected battery plume - check the connector. πŸ”§ Skewered motherboard - loosen the screws and align it. ⚑ Short circuit - if you smell the burn, contact the service. If the phone vibrates but the screen doesn't turn on, the problem may be in the display plume.
What glue should I use for reverse assembly?
Optimal options: 3M 9448A is double-sided tape, suitable for most smartphones. B7000 is glue gel, is applied point-by-point on the perimeter. Original Xiaomi glue (sold in service centers). Do not use superglue or PVA - they can damage the plastic or make subsequent disassembly impossible.
Can I wash the lid after removing it?
Yes, but with caution. You can wash the plastic panel with warm water and soap, avoiding aggressive detergents. Don't rub it with hard brushes, it can erase the antenna lines. After washing, dry the lid for at least 24 hours before assembly.