Xiaomi Redmi Note 6 Pro is a popular smartphone that, even years later, remains in demand due to reliable filling and affordable price. However, over time, owners have to face the need to replace the battery, speaker or even camera. The first step in any such repair is to remove the back cover - an operation that only seems simple.
In practice, opening the case incorrectly can cause cracks in the glass, damage to plumes, or even failure of the fingerprint sensor. In this article, we will examine all the safe ways to open the lid, list the necessary tools, and warn about the typical mistakes that beginners make, and you will learn how to avoid losing the leakyness of the case after disassembly, a problem faced by 80% of users who try to do this for the first time.
Why not just put a knife or a mediator on the lid?
Many of the online masters recommend using tools ranging from plastic cards to stationery knives, and on the Redmi Note 6 Pro, this approach is almost guaranteed to end badly, because the lid of this smartphone is not only attached to the latches, but also on 3M double-sided tape, which eventually "sticks" to the frame, and trying to roughly tear it off will lead to:
- 🔹 Cracks on glass – especially if you press on corners where the glass is thinner.
- 🔹 Damage to antenna contacts (they are located around the perimeter of the cover).
- 🔹 The plume of the fingerprint scanner breaks - it goes from the power button to the motherboard.
- 🔹 Deformation of the metal frame, which then leads to poor assembly.
In addition, the Redmi Note 6 Pro has a hydrophobic seal (thin rubber pad) under the lid that protects the smartphone from moisture, and damage to it will deprive the device of even minimal moisture protection, so it takes a special tool and patience to disassemble.
⚠️ Warning: If your smartphone has been in water or has been hit hard, disassembly can worsen the corrosion of the contacts, in which case it is better to dry it first in rice for 2-3 days or use silica gel.
What tools you will need: full checklist
To remove the lid without risk, prepare the following set.
Suction cup (∅ 5-7 cm)|Plastic mediator or spooger (0.5–0.7 mm)|Thin screwdriver T3 or T4 (screw-cover)|Tweezers with curved ends|Dryer or thermo-air station (power up to 300)°C)|Isopropyl alcohol (90%+) glue-cleaner|Microfibre or lilac-free napkin|Loupe or magnifying glass (optional)-->
Pay special attention to the suction cup – it should be new, with a good rubber base. Old suction cups often fall off in the process, which can lead to slipping of the tool and scratches. Also, we recommend using an antistatic bracelet or at least periodically touching an earthed object (for example, a heating battery) to avoid static discharge, which can damage the motherboard.
If you do not have a thermophen, you can do with a regular hair dryer, but you will have to warm up the body longer (5-7 minutes instead of 2-3). The main thing is not to overheat the smartphone: temperatures above 80 ° C can damage the battery or screen.
Suction cup.|Mediator/spooger|Screwdriver. T3/T4|Fen|None of the above.-->
Step-by-step: how to open the lid without damage
Before starting work, completely turn off the smartphone and remove it. SIM-Memory card. Follow the algorithm:
- Hot-up the body. Set the dryer at 60 to 70°C and warm the back cover evenly for 3 to 5 minutes, paying special attention to the corners. This will soften the glue. Don't direct the air flow to the screen!
- Install the suction cup. Place the suction cup closer to the bottom edge of the lid (where the USB-C connector is located). Press tightly to create a vacuum.
- Original compartment, gently pull the suction cup over yourself, creating a small gap, insert a plastic mediator into it.
- Perimeter pass. Slowly move the mediator along the edge of the lid, separating the latches. At the corners, put a little more effort, where the glue holds stronger.
- Remove the lid. When all the latches are snapped, gently lift the lid, starting at the bottom edge. Don't pull it too hard, it's got a fingerprint scanner plume underneath it!
If the lid doesn't lend itself, don't try to apply more force. Better warm up the problem area with a hairdryer again. On the Redmi Note 6 Pro, the corners near the camera and the upper part (where the headphone jack is located) are most often stuck.
What to do if the suction cup does not hold?
When you remove the lid, you'll see the inside of the smartphone. Don't touch the motherboard with your bare hands, static electricity can damage the chips. If you want to put the lid down, put it on a soft surface (like a microfiber) so you don't scratch.
Common Mistakes and How to Avoid Them
Even experienced users sometimes make mistakes when disassembling the Redmi Note 6 Pro. Here are the most common of them and ways to prevent them:
| Mistake. | Effects of consequences | How to avoid |
|---|---|---|
| Use of metal tools (knife, screwdriver) | Scratches on the frame, damage to plumes, short circuit | Use only plastic or nylon mediators |
| Hair dryer warm-up above 80°C | Deformation of plastic, battery bloating, screen detachment | Control the temperature with a thermometer or keep the hair dryer at a distance of 10 cm |
| Sharp removal of the cover without disconnecting the plume of the fingerprint scanner | The plume break, the power button not working | Before the full removal of the cover, carefully disconnect the plume with tweezers. |
| Disassembly without preliminary cleaning of the body from dirt | Ingestion of dust inside, damage to the seal | Wash your smartphone with alcohol and work in a clean, well-lit place. |
Another common problem is that the antenna lines are damaged, and on the Redmi Note 6 Pro, they are placed around the perimeter of the lid in the form of thin copper tracks, and if you push the mediator too hard, these tracks can break, which will lead to deterioration of the network or Wi-Fi signal, and to avoid this, do not insert the mediator deeper than 1-2 mm.
⚠️ Note: If after disassembly the smartphone stopped seeing SIM-If you have a card or lost communication, you probably have an antenna damaged, and if you have to replace the cover or solder the antenna contacts, that's a job for a professional service center.
How to properly collect the smartphone back
Assembling the Redmi Note 6 Pro after repair is as important as disassembling it, and if you don't install the lid correctly, it will creak, move around corners, or let the dust pass over time.
- Remove the residues of old glue from the frame and lid with isopropyl alcohol. Don't use acetone - it can damage the plastic!
- Check the seal, make sure the hydrophobic gasket (black rubber band around the perimeter) is intact, and replace it with a new one if necessary.
- Apply new adhesive. Use 3M double-sided tape (0.2-0.3 mm thick) or B-7000 adhesive. Apply it with a thin layer without closing the screw holes.
- Start at the top (where the camera is), then gently press the lid around the perimeter, avoiding skewing.
- Rotor twisting. Use a screwdriver with a torque limiter (0.3-0.4 Nm) to keep the threads from breaking.
After assembly, check the performance of all functions:
- 📶 Network and Wi-Fi – if the signal is weak, the antenna may be damaged.
- 🔋 Charging – connect the cable and make sure the connector is USB-C no-luffite.
- 📸 Camera and fingerprint scanner – test them in settings.
- 🔊 Speakers and microphone – call another phone and check the sound.
💡
If after assembly the lid protrudes a little in the corners, warm it up with a hair dryer (50 ° C) and press it with a heavy book for 10-15 minutes, this will help the glue to better "grab".
When is the best time to contact the service center
Despite the apparent simplicity, the Redmi Note 6 Pro takes experience.
- 🛠️ You’ve never taken your smartphone apart before and are afraid of damaging parts.
- 💧 The smartphone has been in water or other liquid (disassembly without special cleaning will aggravate corrosion).
- ⚡ After a failed attempt to disassemble, buttons, screen or camera stopped working.
- 🔧 You need to replace the chips on the motherboard (for example, the charging controller).
- 📉 The warranty on the smartphone is still valid (self-disassembly cancels it).
The cost of professional disassembly in service centers usually does not exceed 800-1500 rubles (depending on the region), this is a small price for the safety of the device. If you decide to act independently, pre-order spare parts (for example, a fingerprint scanner plume or double-sided tape) – they are often damaged on the first disassembly.
💡
Self-disassembly Redmi Note 6 Pro is justified only when replacing the battery, speaker or camera. to repair the motherboard or display requires professional equipment (soldier station, microscope).