Disassembly Xiaomi Redmi Note 5: detailed instructions with photos and security tips

Xiaomi Redmi Note 5 is one of the brand’s most popular smartphones, but even it’s not immune to breakdowns. Whether you’re planning to replace the charging connector, clean the system board from dust or install a new battery, being able to properly disassemble the device will save you time and nerves. This article is a step-by-step guide with photos of key steps, a list of necessary tools and unique warnings that are not in the standard instructions.

It's important to understand that disassembling a smartphone will void the warranty (if it's still valid), and careless actions can damage the plumes, chips or display. We'll tell you how to minimize the risks, but the final decision is yours. If you've never held an electronics screwdriver in your hands, you might want to go to a service center.

In the article you will find:

• 🔧 List of tools with an explanation of why you can not use improvised means.
• 📸 Photo of each stage of dismantling - from the removal of the lid to the removal of the motherboard.
• ⚡ Hidden traps Redmi Note 5, which are silent even experienced masters.
• 🔄 Reverse Assembly Tips to Avoid Sensor or Button Problems.

1.Preparation: tools and conditions

The first rule of successful disassembly is the right tools, and using a knife, a metal screwdriver, or pliers is almost guaranteed to cause scratches on the body, damage to the latches, or break plumes.

• 🔩 Plastic blades (2-3 pieces) - to separate the latches of the back cover. Metal mediators are too rough.
• ⚙️ Screwdriver cross (PH00) — This is the size that Xiaomi fits (PH0) slash.
• 🧲 Magnetic mat or tray – so as not to lose small screws (there are 12 of them in the Note 5!).
• 🔥 Dryer or thermoair station - to soften the glue under the battery (if you plan to remove it).
• 📦 Plastic container with cells - for sorting screws by length (they are different!).

Also prepare the workplace:

• 🪑 Work at a table with good lighting — LED-lamp or table lamp is mandatory.
• 🧹 Remove from the surface small debris and dust - the entry of particles into the housing can cause a circuit.
• ⚡ Turn off your smartphone and wait until the battery is fully discharged (if you plan to replace it), which will reduce the risk of fire in case of accidental circuit.

⚠️ Warning: If you're disassembling the Redmi Note 5 with a working display, take a picture of all the plumes and screws before turning off. 30% of the time after assembly, users forget to plug in the sensor plume or front camera, resulting in a broken touchscreen or black screen".

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Before disassembly, turn on the “Do Not Disturb” mode on your smartphone and turn off mobile data – this will prevent accidental calls or notifications that can interrupt the process.

Removal of the back cover: technique and errors

The back cover of the Xiaomi Redmi Note 5 is mounted on plastic latches and a thin layer of glue around the perimeter, and the main mistake of beginners is trying to tamper with a knife or a credit card, which leads to:

• 🔴 Cracks on plastic near volume buttons.
• 🔴 Breaking antenna contacts (thin metal strips on the sides).
• 🔴 Damage to sealing gum (if any), which will worsen dust protection.

The correct algorithm:

1. Heat the edges of the cover with a hair dryer (temperature) ~50°C) for 1-2 minutes - this will soften the glue.
2. Insert a plastic blade into the gap between the lid and the body at the headphone jack (there is a less latch).
3. Carefully lead the shoulder blade along the edge, without going deeper than 2 mm - plumes pass under the lid.
4. When the latches begin to "click", lift the cover from the charging connector.

If the lid doesn't lend itself:

• 🔹 Check if all screws are twisted (there are 2 hidden under the stickers near the camera!).
• 🔹 Increase the hair dryer temperature to 60.°C, but not higher - overheating will damage the battery.
• 🔹 Do not pull the lid up - move the shoulder blade parallel to the body, as if "cut" glue.

⚠️ Attention: In Redmi Note 5, the fingerprint scanner plume is glued to the back cover! It is easy to tear off when you remove the cover. If you don't plan to replace the sensor, unplug the plume from the motherboard in advance (see section 4).

3. Battery shutdown: Why it should be done in the first place

Even if you're not planning on replacing the battery, you need to turn it off before you manipulate the board. Why?

• 🔋 Short circuit when the screwdriver touches the board contacts can disable the power controller.
• 🔥 Overheating when soldering (if you replace the connector) will damage the battery.
• 💥 Bloating of the battery (if it is damaged) can occur when mechanically exposed.

How to turn off the battery:

1. After removing the lid, you will see a black plume with an orange connector - this is the battery connector.
2. Carefully tuck the connector with a plastic spatula on the side, not on top, so as not to damage the contacts.
3. Make sure the connector is completely out of the nest – sometimes it sticks due to oxidation.

If the connector is not switched off:

• 🔹 Check if it is glued (some Note 5 batches use glue to fix it).
• 🔹 Don't pull the wires, put the connector on it, not the plume.
• 🔹 If the contacts are oxidized, clean them with an alcohol tampon, but not sandpaper.

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Turning off the battery is the first step in any disassembly, and even if you just clean the case of dust, the risk of closing when you touch metal parts remains.

4. Removal of the motherboard: step-by-step instructions

The motherboard Redmi Note 5 is mounted on 10 screws (8 short and 2 long at the charging connector) and three plumes.

Step 1: Turn off the plumes in this order:

1. The fingerprint scanner plume (if not previously made) is a white connector near the battery.
2. The display plume is a wide black connector in the center of the board. Tuck it on both sides.
3. The plume of the front camera and sensors is a small orange connector at the top edge.

Step 2: Carefully raise the charger side of the charging socket.

• 🔹 Check if all screws are twisted (especially under the sticker) WIFI near-antenna).
• 🔹 Do not pull the fee over the edges - take on a metal screen (also known as heat sink).
• 🔹 If the board is stuck, check if the plume of the vibration motor is glued (occurs in 10% of cases).

Step 3: Put the board on an antistatic surface (like a package of components) and don't put it on a metal or countertop, because static electricity can damage the chips.

⚠️ In Redmi Note 5 under the board hidden antenna plume NFC (If your model supports contactless payment, it's glued to the body and it can easily break when you're careless.

5. Battery replacement: nuances and risks

Battery Redmi Note 5 (capacity 4000 mAh, article) MB1160) It's glued to the body with double-sided tape, and it takes care to replace it:

Step 1: Warm up the body with a hairdryer (60–70)°C) for 3-5 minutes to soften the glue. Do not direct air flow to the board - overheating can damage the chips.

Step 2: Put a plastic blade on the edge of the battery, where there are no board components. If the glue is too sticky, use guitar string strings (sold in remixes): slash them under the battery and saw them back and forth.

Step 3: After removing the old battery, clean the seat of glue residue with isopropyl alcohol (not acetone, 3M 9448A).

Warnings:

• 🔴 Do not use metal tools to tamper with the battery – a puncture can cause fire.
• 🔴 If the battery is swelling, don't try to remove it yourself -- call the service. Risk of rupture and chemical burn is too high.
• 🔴 The new battery before installation should have a voltage of 3.7-3.8 V. Check it with a multimeter.

6.Reverse Assembly: How to Avoid Typical Errors

The Redmi Note 5 is often harder to disassemble.

Procedure for connecting the plumes:

1. The front camera and sensors.
2. The display plume (make sure it sat down before the click!).
3. The fingerprint scanner plume (if glued to the cover, connect it last).
4. Battery connector.

Installation of screws:

• 🔹 The screws at the charging connector are longer than the rest - do not confuse them with the camera screws.
• 🔹 Twisting their cross so that the fee settles evenly.
• 🔹 Don't pull it! Optimum force, to light resistance.

Check before final assembly:

• 🔹 Connect the charger and check if charging is underway (the indicator should burn).
• 🔹 Turn on your smartphone and test the touchscreen, cameras, speakers and fingerprint scanner.
• 🔹 If something doesn’t work, don’t assemble the whole body – look for a problem (usually an unconnected plume).

⚠️ Note: After the Redmi Note build 5 may not be turned on if: - Power plume is not connected (check the battery connector). - Short circuit on the board (check the multimeter circuit). VCC_MAIN and GND). - The charging connector is damaged (see for bent contacts). 90% In cases, the problem is solved by redisassembling and checking connections.

7. Frequent breakdowns after disassembly and how to avoid them

Even with a careful disassembly, there is a risk of problems.

If after assembly the smartphone is turned on, but works unstable (self-reboots, lags), the reason may be:

• 🔹 Static electricity – discharge yourself by touching a grounded object, and reconnect the plumes.
• 🔹 Poor battery contact – check if the contacts in the connector are bent.
• 🔹 Screen damage - if pressure hit the display during disassembly, microcracks in the matrix could appear.

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If the smartphone doesn't turn on after disassembly, don't panic. 80% of the time, the problem is solved by re-checking the plumes and connectors, the main thing is not to try to "fix" the board with soldering without experience!

FAQ: Answers to Frequent Questions