How to carefully remove the back cover on Xiaomi Mi A2 Lite: tools, risks and step-by-step analysis

Removal of the back cover of the Xiaomi Mi smartphone A2 Lite is a challenge that owners face when replacing a battery, repairing a camera or cleaning up dust. Despite its apparent simplicity, the procedure requires caution: improper actions can lead to cracks in the case, damage to plumes or loss of leakage. This model, released in 2018, has adhesive mounting of the cover, which makes it difficult to dismantle it without specialized tools.

Unlike the flagship devices with metal cases, the Mi A2 Lite is equipped with a plastic back panel, which is more vulnerable to mechanical stress, and if you have never taken a smartphone apart before, we recommend that you carefully study the instructions and prepare the workplace. In this article, we will analyze three methods of removing the lid (with a mediator, hair dryer and without tools), list the necessary materials and warn against typical errors.

⚠️ Important: Procedure voids warranty if the device is still warranty service. Check warranty status in the Mi Service app before work begins.

Preparation for the removal of the back cover: tools and conditions

Before you start to disassemble, make sure you have everything you need, and even missing one tool can lead to irreparable consequences — for example, trying to put a lid with a knife instead of a mediator almost always ends in scratches or chips.

Here is the minimum set you will need:

• 🔧 Plastic mediator (or guitar mediator) - for careful liding.
• 🔥 Hair dryer (power of at least 1500 W) - for softening glue.
• 🧲 Suction (optional) - helps to lift the cover after heating.
• 📏 Tweezers – for working with small details (for example, plumes).
• 🧴 Isopropyl alcohol 90%+ — glue-cleaner.
• 🔋 New glue, for example, B-7000) — If you plan to reassemble the device.

Also prepare the workplace:

• 🪑 Clean table with good lighting (better to use a table lamp).
• 🧹 Soft fabric or silicone mat to avoid scratching the screen.
• 📦 Containers for screws and small parts (a magnetic organizer can be used).

⚠️ Note: Do not use metal tools (screwdrivers, knives) to lash the lid - they leave microcracks that eventually lead to loosening of the body.

Method 1: Removal of the cover with a mediator (cold method)

This method is suitable if the glue has not yet dried (for example, a new device or the lid was removed earlier), it is less risky than heating, but requires patience and accuracy.

Step-by-step:

1. Turn off your smartphone and remove it. SIM-scatter-card.
2. Place the device with the screen down on a soft surface.
3. Insert the mediator in the gap between the lid and the body at the charging connector (there is usually weaker adhesive connection).
4. Carefully drive the mediator along the edge, gradually lifting the lid. If you feel resistance, don't push harder, try another area.
5. As soon as the cover is raised by 1-2 mm, move on until you disconnect it completely.

🔹 Complexities of method:

• ⏳ It takes a lot of time (15-30 minutes).
• 🔊 It can make creaking sounds – it’s normal if there’s no cod.
• 🛑 If the cover does not lend itself, do not apply force - go to the method with heating.

The smartphone is turned off and removed. SIM-map|

Mediator and sucker on hand|

The working surface is soft and clean|

Time reserve at least 30 minutes-->

⚠️ Note: If there are plumes under the lid (for example, from a fingerprint scanner), do not pull it sharply - first disconnect the connectors with tweezers.

Method 2: Using a hair dryer to soften glue

The thermal method speeds up the process, but it requires caution: overheating can damage the battery or display.°C (not higher than 80)°C!).

Algorithm of action:

1. Turn on the dryer at medium power and direct the airflow to the back cover, keeping it at a distance of 5-7 cm.
2. Heat in a circle for 2-3 minutes, paying special attention to the corners.
3. Try to cover the mediator. If it doesn't respond, heat it for another 1-2 minutes.
4. Once the lid has risen, continue to carefully separate it, without stopping heating (you can ask the assistant to hold the hair dryer).

📌 Signs of proper heating:

• 🌡️ The lid becomes slightly warm to the touch (not hot!).
• 🕳️ There are small gaps on the edges.
• 🎵 When you hear the sound of a stained stain).

💡

If you do not have a hair dryer, you can use a hot water heating pad (temperature). ~60°C), applying it to the lid for 5 minutes through a towel.

Method 3: Withdrawal without tools (emergency)

If you don't have a mediator or hair dryer on hand, you can try to separate the lid with nails or a plastic card, which is risky and only suitable for advanced users.

Implementation technique:

1. Place your smartphone on the table with the screen down.
2. With a nail or the angle of the plastic card, start pulling the lid from the lower right corner (there is usually weaker glue).
3. As soon as there is a gap of 1 mm, move along the edge, gradually increasing the gap.
4. If the lid doesn’t lend itself, try to heat it slightly in your hands (body warmth sometimes helps).

⚠️ Attention: On Mi models A2 Factory sealed Lite, this method causes 80% of the time the lid cracks or the latches are damaged!

🔧 What to do if the cover is broken:

• 🛠️ Carefully collect the fragments and fix them with tape.
• 📞 Contact the service center to replace the cover (cost) ~1500–2500 rubles.).
• 🔍 Check if the fragments are inside the body (can close contacts).

What to do after removing the lid: inspection and preparation for assembly

When the lid is finally removed, take your time to start repairing. First, inspect the insides of the device for damage and prepare to reassemble.

Checklist after withdrawal:

• 🔍 Check the integrity of the plumes (especially the fingerprint scanner and the camera).
• 🧹 Remove dust with a soft brush or a can of compressed air.
• 🧴 Clean the glue residues from the cover and body with isopropyl alcohol.
• 📸 Take a picture of the location of the screws and parts before removing them.

⚠️ Warning: If you notice a bloated battery (the lid is raised in the center), do not try to pierce or bend it - this can lead to fire!

🔋 Advice on glue replacement:

• Use a double-sided scotch 3M glue B-7000 lock-in.
• Apply glue point-by-point along the perimeter, do not overdo it - excess can get on the connectors.
• After assembly, put the smartphone under the press (for example, a stack of books) for 1-2 hours.

Common Mistakes and How to Avoid Them

Even experienced craftsmen sometimes make mistakes when disassembling the Xiaomi Mi A2 Lite, and here are the most common ones and ways to prevent them:

💡 If you remove the cover to replace the battery, do not buy cheap analogues - they often have a smaller capacity and can swell in 3-6 months:

• Original Xiaomi battery (article) MB47).
• Batteries from Baseus or Remax with a 12-month warranty.

When is the best time to contact the service center

Despite the fact that the removal of the cover Xiaomi Mi A2 Lite can be done on your own, in some cases it is better to trust professionals:

• 🔧 You have no experience disassembling smartphones, and the device is guaranteed.
• 💥 The battery is swollen or a chemical smell is heard from the device.
• 📱 The lid cracked and the shrapnel got inside the body.
• 🔌 After self-assembly, the smartphone does not turn on or charge.

📌 Cost of services in services (2026):

• Removal / installation of the cover - 500-1000 rubles.
• Replacement of the battery - 1500-2500 rubles. (with spare parts).
• Replacement of the fingerprint scanner plume is 1200-1800 rubles.

⚠️ Note: If you are using an unofficial service, make sure that the master uses original parts.

💡

Self-disassembly is only justified if you have tools and confidence in your abilities. If in doubt, contact the specialists to avoid expensive repairs.

FAQ: Frequent questions about removing the cover Xiaomi Mi A2 Lite