Disassembly Xiaomi Redmi 5 Plus: detailed instructions with photos and expert tips

Introduction: when you need to disassemble the smartphone

Xiaomi Redmi 5 Plus (codenamed vince) remains a popular device even years after its release, its reliability and maintainability make the model popular among users who prefer self-repair, but disassembly of this device has nuances that are important to consider to avoid damage to plumes, connectors or the body.

The main reasons why owners decide to disassemble: battery replacement (capacity 4000 mAh degrades over time), dust cleaning (especially important for speakers and charging connector), replacement of the display after falls, repair of power buttons / volume, recovery after moisture.

But before you take up the screwdriver, evaluate your skills: errors in disassembly can lead to loss of tightness of the case and failure of the main board due to static electricity.

This guide will be suitable for all Redmi 5 Plus versions, including 3/32GB, 4/64GB versions and global firmware. If your model has other features (for example, Redmi Note 5), check the compatibility of parts - some components may differ!

Preparation: security tools and measures

To disassemble Xiaomi Redmi 5 Plus you will need:

• 🔧 Plastic mediators (2-3 Pc.) - for careful slinging of the lid and plumes.
• ⚙️ The screwdriver. PH00 (magnetic) for the screws of the shell.
• 🔥 Dryer or thermo-air station - to soften the glue under the battery.
• 🧲 Suction - will help to raise the screen after heating.
• 📏 Plastic scraper - for separation of the battery.
• 🔌 Multimeter – to check the voltage on the battery before shutting down.

⚠️ Warning: Do not use metal tools to smear plumes - this can cause short circuits! Also avoid excessive heating of the housing (maximum 60-70)°C, so as not to damage OLED-matrix.

Before the start of the work:

1. Turn off the phone and remove it. SIM-card and memory card (if installed).
2. Discharge the battery to 20-30% – this will reduce the risk of fire in case of accidental damage.
3. Back up your data – even if you don’t plan to touch the fee, there’s always a risk of failure.

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If you do not have a thermophen, you can use a regular hair dryer, but keep it at a distance of 10-15 cm from the body so as not to overheat the screen.

Step 1: Removing the back cover

The Redmi 5 Plus body is glued around the perimeter, so it will require heat treatment to remove it. Heat the edges of the phone (especially in the area of buttons and cameras) with a hair dryer for 1-2 minutes. The glue will become elastic, and the cover will separate more easily.

Then proceed as follows:

1. Insert a plastic mediator into the gap between the case and the screen at the USB-C connector.
2. Carefully drive the mediator along the edge, gradually increasing the gap. Don't push too hard - there are plumes of buttons inside!
3. When the lid is 2 to 3 mm up, remove it completely. If you feel resistance, warm up the problem area again.

⚠️ Note: There are two antenna bands under the cover (for Wi-Fi and Wi-Fi). LTE), They're glued to the body. Don't force them off, gently slap them and disconnect them so they don't break!

Step 2: Turn off the battery and plumes

When you take the lid off, you'll see the battery closed in black film, and the first thing you do is turn off the battery to avoid short circuits.

1. Subdate the battery connector with a plastic tool (located next to the main board,marked as BATTERY CONNECTOR).
2. Carefully lift the connector upwards - it should come out of the nest without effort.

Now you can disconnect the other plumes:

- The plume of the display module (the widest, located at the top of the board).

Touch panel plume (thin, next to the display).

- Camera plume (small connector in the upper left corner of the board).

- The plume of the power/volume buttons (stick to the body, be careful!).

⚠️ Attention: The sensor plume is often glued to the metal screen - don't pull it by force! First, gently apply the adhesive base, then unplug the connector.

Step 3: Removing the battery

The battery in the Redmi 5 Plus is glued to the body with double-sided tape.

1. Plug a strip of tape on the battery (you can use tape) - this will help to pull it out after softening the glue.
2. Heat the body with a hairdryer in the battery area (temperature 60-70 ° C) for 2-3 minutes.
3. Carefully slap the battery with a plastic scraper from any end and pull the tape. If the glue doesn't lend itself, warm it up again.

⚠️ Attention: Don't puncture the battery or press it with metal tools! Lithium-ion batteries can ignite if damaged. If the battery is swelling, don't try to remove it yourself - contact the service center.

Check the voltage on the battery (should be 3.7-4.2 V)

Buy the original battery (article: MB39 or compatible)

Prepare thermoglue for a new battery

Check the integrity of the connector on the board-->

After removing the old battery, clean the seat of glue residue with alcohol or isopropyl alcohol.The new battery is installed in reverse order, but before gluing, make sure that the plumes are not clamped or twisted.

Step 4: Disassembly of the display module

If you need to replace the screen or the touchscreen, you have to remove the display module, which is the most important part of the disassembly, because the plumes are very fragile.

Procedure:

1. Heat the front panel of the phone (from the screen side) for 3-5 minutes. This will soften the glue around the perimeter.
2. Secure the suction cup at the bottom of the screen (above the Home button) and pull up slightly.
3. Insert a plastic mediator into the resulting gap and carefully lead it along the edge, separating the screen from the body.
4. As soon as the screen rises by 1-2 mm, remove the suction cup and continue to separate the module with your hands (in gloves!).

⚠️ Attention: At the top of the screen is a plume of the display - do not lift the module too high, otherwise you will tear it! Maximum angle of lift - 45°.

After screen separation:

• Disconnect the display and sensor plumes (as described in Step 2).
• If you only need to replace glass, use layer separation using a thread or special device (for example, LOCA-machine).
• When installing a new screen, make sure all plumes are connected correctly – skewing will result in artifacts in the image or a broken sensor.

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If you've got colored stripes or flickering after you change the screen, check the density of the plume on the connector, and often the problem is solved by reconnecting.

Step 5: Access to the main board and other components

If you need to get to the processor (Qualcomm Snapdragon 625), memory or charging connector, after removing the battery and screen, unscrew all the screws on the main board.

• 🔩 4 screws around the camera.
• 🔩 2 screws next to the connector USB-C.
• 🔩 3 screws at the top of the board (under the screen).

After the charge is retrieved, you will have access to:

• 📶 Antenna modules (can be cleaned of dust).
• 🔊 Dynamics and microphone (a common cause of bad sound is dust clogging).
• 🔋 Charging connector (if the phone is not charging, check it for oxidation).
• 📱 Power/volume buttons (their mechanisms often break due to moisture intrusion).

⚠️ Note: When working with the board, use an antistatic bracelet or periodically touch an earthed object. PMIC (power controller and RF-chip (responsible for communication).

Assembly of the phone after disassembly

The Xiaomi Redmi 5 Plus is built in reverse order, but there are a few critical points:

1. Check all the plumes, they should sit tight, without skewing. Pay special attention to the sensor plume: if it is not fully inserted, the screen will work, but the touch will not.
2. Apply the new adhesive to the battery and body. Use 3M 9448A double-sided tape or B-7000 thermal adhesive.
3. Tighten all screws evenly - do not pull, so as not to tear the thread!
4. Check the seal before final assembly. If the phone falls into the water, treat the board with alcohol and apply the sealant to the joints of the case.

After assembly:

• Connect the phone to the charger and check if the current is coming (the indicator should catch fire).
• Turn on the device and test it: 📱 Sensor (touching all over the screen). 🔊 Speaker and microphone (call another phone). 📷 Cameras (front and main). 🔋 Charging (connect the cable and check battery percentage).

If something doesn’t work, take the phone apart again and check to connect the appropriate plumes or components.

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After the battery is replaced, perform 2-3 full charge/discharge cycles (0% to 100%) to calibrate the battery controller, which will extend the life of the new battery.

FAQ: Frequent questions about the dismantling of Xiaomi Redmi 5 Plus