Why to Disassemble Redmi 6 and What You Need to Know
Removing the back cover of the Xiaomi Redmi 6 is the first operation in any repair, from battery replacement to plume recovery. The model, released in 2018, is still popular due to the balance of price and performance, but its design has features that are important to consider. For example, the lid here is not removable in the usual sense, it is glued to the body, and underneath it are the fragile plumes of the fingerprint scanner and antenna modules.
Unlike Xiaomi’s flagship metal cases, the Redmi 6 is made of plastic, which makes it both easier and more difficult to process. On the one hand, plastic is less susceptible to deformation when it is unsavoryly opened. On the other hand, it is thinner and can crack under excessive pressure. This article will help avoid the typical errors that lead to damage to latches, break plumes or loss of leakage (relevant to models with splash protection).
Before you start, answer two questions: why do you take your phone apart (diagnostics, part replacement, cleaning) and whether you have spare parts in case of force majeure. If the goal is just to look inside, you better use the video instructions below.
Preparation: Tools and Conditions for Safe Disassembly
To remove the cover Xiaomi Redmi 6 will need a minimum set of tools, but each of them is important.
- 🔧 Plastic blade (or mediator) - to separate the lid and the body. Metal tools leave scratches!
- 🔥 Dryer or thermo-air station - for softening the glue (temperature 60-80)°C).
- 🧲 Suction cups (2 pcs) - help to evenly lift the cover after heating.
- 📦 Rotor container – Redmi 6 uses 8 screws of different lengths (see table below).
- 🔍 Loop or magnifying glass - to check plumes for microcracks.
Better to work on a clean table with a soft substrate (for example, a silicone mat) so as not to scratch the glass or body. The lighting should be bright, this will help you notice the accumulation of dust or glue residue. If you are disassembling the phone for the first time, film the process on video: this will simplify reverse assembly.
Critical detail: in Xiaomi Redmi 6, the fingerprint scanner plume is glued to the lid. If you take it off sloppy, it can be easily torn off, which will lead to the sensor inoperability!
Step-by-step: how to remove the back cover
Follow the algorithm in strict order. Sequence disruption (e.g., trying to lid without heating) results in 90 percent of the time in damage to the latches.
- Turn off the phone and remove it. SIM-You don't have to turn off the battery, you do it in the next step.
- Heat the edges of the cover with a hairdryer for 2-3 minutes, keeping it at a distance of 5-7 cm.
- Set the suction cups closer to the bottom edge (where the charging connector is) and gently pull up. If the lid doesn't lend itself, repeat the heating.
- Insert the blade into the gap, and slowly lead it along the body, separating the adhesive layer. Start at the bottom corner, there are fewer plumes.
- Disconnect the plumes (fingerprint scanner, antenna modules) after the lid is completely removed. To do this, lift the black locks on the motherboard.
☑️ Check before removing the lid
If the lid doesn't go, don't force it! Probably the glue hasn't softened enough. Reheat for another 1-2 minutes. Redmi 6 has latches around the perimeter, but the main fixation is on the glue.
⚠️ Warning: Do not use a knife or screwdriver to separate the lid and the body, even a small pressure of metal will leave traces on the plastic, and if slipped, it will damage the plumes.
Common Mistakes and How to Avoid Them
Even experienced craftsmen sometimes make mistakes when parsing the Xiaomi Redmi 6, and here are the most common ones and ways to prevent them:
| Mistake. | Effects of consequences | How to avoid |
|---|---|---|
| Heating of the cover above 90°C | Deformation of plastic, battery damage | Use a thermometer or hair dryer with temperature adjustment |
| Sharp compartment of the lid | Fracture of the fingerprint scanner plume | Gradually, start with the lower corner. |
| Ignoring screws | Damage to the carvings in the case | Put the screws in order (see diagram below) |
| Working on a dirty surface | Getting dust under the screen or in connectors | Use silicone mat and gloves |
Another common problem is improper assembly, for example, if you forget to plug in the antenna plume, the network signal will deteriorate, so to avoid this, take pictures of each step of the dismantling or keep a record of the location of the parts.
What to do if the lid is cracked?
What to do after removing the cover: further actions
When the lid is successfully removed, you will have access to key components of Xiaomi Redmi 6:
- 🔋 The battery is attached to adhesive tape, and you need to gently lift it with a spatula to replace it, and you have to disconnect the connector first.
- 📱 The motherboard is fixed with 6 screws, and underneath it are hidden the camera connectors and the dynamics.
- 📡 The antenna modules are glued to the lid, and when you change the lid, you need to move them to a new one.
- 🔍 The fingerprint scanner is connected to the board with a thin plume. Don't pull it!
If your goal is to replace the battery, consider that Redmi 6 uses a 3,000 mAh battery with a JST 1.0 connector. Buy only original or certified counterparts (e.g., from ZMI or Baseus). Cheap batteries often have understated capacity and can swell in 3-6 months.
To clean the dust, use a soft brush and a compressed air balloon. Don't blow with your mouth - saliva contains moisture that can oxidize the contacts. If you notice corrosion on the connectors, clean them with alcohol (90% concentration or higher).
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Before you reassemble, check all the buttons and connectors, and sometimes after you disassemble the contacts, they oxidize, you have to clean them with a stripe or alcohol.
Reverse Assembly: How to properly close the cover
Building Xiaomi Redmi 6 after repair is as important as disassembling.
- Check the plumes - all connectors should be tightly connected, and the locks are omitted.
- Apply a new adhesive (e.g., B-7000) around the perimeter of the lid with a thin layer. Avoid hitting the speaker or microphone.
- Line the lid on the latches before you press. Start at the top edge.
- Press the lid evenly, from center to edge. Use a heavy book or a slug (no bigotry!).
- Let the glue dry for 1-2 hours before turning on the phone.
If the phone does not turn on after assembly, check:
- Is the battery connected (the connector could have left during assembly)?
- Are the contacts closed on the motherboard (check for foreign objects).
- Does the power button work (sometimes it will go off after analysis).
⚠️ Note: If the fingerprint scanner is not working after assembly, it is likely to break off or its plume has bent.
Video Instructions and Additional Resources
For clarity, we recommend you to read the video guides for the analysis of Xiaomi Redmi 6.
- 🎥 0:45 - correct angle of insertion of the shoulder blade (avoid pressure on the plumes).
- 🎥 2:10 - How to disconnect the battery without damaging the connector.
- 🎥 3:30 - Checking the performance after assembly.
Useful resources:
- 🔗 Firmware base for Xiaomi - if after repair the phone requires flashing.
- 🔗 Trend on 4PDA — Discussion of typical Redmi 6 problems.
- 🔗 iFixit - detailed disassembly schemes (in English).
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If you are not sure about your skills, it is better to contact the service center.The cost of parsing Xiaomi Redmi 6 in the workshops starts from 500 rubles, which is cheaper than repairing after errors.