Disassembly Xiaomi 5 Plus: instructions with photos, tools and warnings

Xiaomi 5 Plus is one of those smartphones that, despite their age, still remain in service for many users. However, over time, even the most reliable equipment requires repairs, whether it is replacing the battery, cleaning from dust or recovering from a fall. Disassembly of this device has its own features, which are important to consider so as not to damage fragile plumes or break the latches of the case.

In this article, you'll find a step-by-step photo guide, a list of tools you need, and key nuances that are not covered in most reviews: How to remove the back cover, disconnect the battery, get to the motherboard, and avoid common mistakes. If you've never taken your smartphone apart before, this guide will help you do everything neatly.

We warn you right away: Xiaomi 5 Plus is not one of the most repairable devices, its design involves the use of glue to fix the battery and some plumes, and the thin metal body easily deforms if you carelessly handle. If you are not sure of your abilities, you should contact the service center.

Preparation for disassembly: tools and security measures

Before you start disassembling, make sure you have everything you need, the wrong tool is the main cause of damage to the body and internal components, and here is the minimum set you'll need:

• 🔧 Plastic mediators (2-3 pc.) - for careful liding and separation of adhesive joints.
• 🔨 Cross screwdriver (PH00 or PH0) — hull-rotor.
• 🔋 Suction - will help remove the back panel after warming up.
• 🔥 Hair dryer or thermo-air station - for softening the glue (temperature not higher than 60)°C!).
• 🧲 Magnetic mat or screw container – to avoid losing small details.
• 📸 Smartphone for photography – fix the location of plumes and screws at each stage.

Also prepare the workspace: it should be well lit, without crumbs and dust. Use an antistatic bracelet or at least periodically touch a grounded metal object to avoid static discharge that can damage the motherboard.

⚠️ Warning: Do not use metal tools (knives, screwdrivers) to smack the lid! Even a small scratch on the aluminum body of the Xiaomi 5 Plus can become a hotbed of corrosion or worsen the appearance.

If you are disassembling your phone due to battery problems (blown, quick discharge), remember that a bloated battery can ignite if punctured or severely mechanically impacted, in which case it is better not to take risks and take the device to the service.

Removal of the back cover: warming up and neat separation

The back cover of the Xiaomi 5 Plus is glued around the perimeter, so you can't just take it off. First of all, turn off the smartphone and remove it. SIM-The card (if installed) then proceed by the algorithm:

1. Warm up the back panel at the edges for 1-2 minutes. Keep the hair dryer at a distance of 5-7 cm, so as not to overheat the plastic elements.
2. Push the suction cup to the bottom of the lid (where the charging connector is) and pull up slightly.
3. Insert a plastic mediator into the resulting gap and carefully lead it along the edge, separating the glue.
4. Repeat the procedure for all sides until the lid is fully removed.

At this point, many people make the mistake of trying to pull the lid hard after warming up, and you can't do that -- there are fingerprint scanner plumes under the lid and antenna contacts that can be easily ripped off, and if the lid doesn't work, warm it up again.

Once you remove the lid, you'll see a battery pack, covered with a protective film, and some plumes. Take your time to unplug them, take a picture of each connector first. The fingerprint scanner plume is particularly fragile, with its connector attached to the motherboard with a small latch that is easy to break.

⚠️ Attention: If you notice that the battery is blown up after removing the lid (as seen in the bubble on the protective film), do not continue disassembling. Bloated lithium-ion batteries can spontaneously ignite when mechanically exposed!

Disconnection of the battery and plumes: the procedure

Before you touch any components inside the case, be sure to disconnect the battery. Even a switched-off smartphone can get a short circuit if you accidentally touch the board contacts with a screwdriver. Here's how to do it correctly:

1. Remove the protective film from the battery (it is glued weakly, put it under the mediator).
2. Unscrew two screws that lock the metal plate over the battery connector.
3. Carefully tuck the battery connector with a plastic spatula and disconnect it from the motherboard.

Now we can start to disconnect the plumes, and their order is important, because some plumes block access to others.

When disconnecting the plumes, do not pull the wires, take only the plastic connector. If the plume does not leave the connector, check if there is a latch (usually it needs to be slightly lifted with a screwdriver).

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If the plume is stuck to the connector, do not use force. Drip a little isopropyl alcohol (90%+) on the contacts and wait 10-15 seconds - this will help dissolve the oxides and facilitate separation.

Removing the motherboard: screws and hidden latches

The Xiaomi 5 Plus motherboard is mounted on 8 screws of varying lengths, and has several hidden latches around the perimeter. You can't confuse the screws when you build them back, it can damage the board or the case. Here's how to properly remove it:

1. Unscrew all screws, folding them in order of extraction (photo the location of each!).
2. Carefully tuck the board with a plastic blade on the right side (where the connector is) SIM-map).
3. Raise the fee by 1-2 mm and check if the plumes (especially the display) interfere.
4. Completely remove the board by holding it by the edges (don't touch the chips!).

Notice the two hidden latches at the bottom of the board (on the charging connector side) that are easily overlooked, and when you try to pull the board, they can break. If the board fails, check again if all screws are unscrewed and if there are undetected locks.

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

• 📱 Slot SIM-Cards (can be cleaned or replaced).
• 🔊 Dynamics and microphone (a common cause of bad sound is dust clogging).
• 📶 Antenna contacts (if there were problems with the signal).

⚠️ Attention: If you're disassembling your phone because of charging problems, check the USB-Type C connector on the board. Often, oxidation or contamination of the contacts leads to poor connection. Use alcohol and a soft brush to clean, but not metal objects!

Replacement of the battery: nuances and the choice of a new

The battery is the most common replacement component in the Xiaomi 5 Plus. Over time, the battery capacity drops and the phone starts to run out in a few hours. However, an incorrect replacement can lead to even faster degradation or even fire.

Which battery to choose?

The original batteries for Xiaomi 5 Plus are labeled BM43 or BM44 and a capacity of 3000 mAh.

• 🔋 Match of connector and size (should fit perfectly into the nest).
• 📏 Thickness – don’t take batteries thicker than 3.5 mm, otherwise the lid won’t close.
• 🔄 Availability of a protection controller (cheap analogues often do not have it).

Replacement process:

1. Remove the old battery by smacking it with a plastic spatula. If it's glued heavily, warm it up with a hair dryer (maximum 60°C!).
2. Remove the residues of the glue from the body (you can use isopropyl alcohol).
3. Apply a new double-sided tape (or special battery glue) to the bottom of the compartment.
4. Install a new battery, making sure the plume is not overbent.
5. Connect the connector to the board and fix with a metal plate.

Building a phone: how to avoid mistakes

Building Xiaomi 5 Plus after disassembly is often harder than disassembling, the main problem is the screws and mislaid plumes. To avoid trouble, follow these rules:

• 🔧 Rotate the screws in reverse order using photos taken during disassembly. Long screws (usually black) go into the body, short (silver) – in the board.
• 📱 The plumes are the last thing you need to do, starting with the display module, and make sure they're not twisted or clamped.
• 🔋 Connect the battery only after checking all other connections (to avoid short circuits).
• 🧲 Stick the back cover to a new double-sided tape (the original glue loses its properties after heating).

Don't turn on the phone right away.

1. Whether all screws are twisted (a missed screw can cause damage to the board when vibrating).
2. Is there any gap between the lid and the body (this is a sign of improper installation of latches).
3. Whether the buttons on and volume control work (their plumes often fall out during assembly).

⚠️ Warning: If the phone doesn't turn on after assembly, but when you connect to charging, the indicator shows, the problem is most likely in the display plume or battery connector.

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The most common build error is forgetting to plug in the fingerprint scanner plume, so the phone turns on but doesn't recognize fingerprints, and the scanner doesn't show up in the settings.

Frequent problems after disassembly and their solution

Even if you do everything according to the instructions, after the dismantling, there may be problems, and here are the most common ones and how to fix them:

If the phone overheats or discharges quickly after disassembly, this may indicate:

• 🔥 Poor battery contact (check fixing connector).
• 🔄 Closing on the board (look for darkened elements).
• 📉 Poor quality new battery (check the voltage multimeter).

In some cases, the IMEI or serial number may be lost after disassembly (especially if the battery has been off for a long time), and you can restore them through the engineering menu or using the Mi Flash software, but this will require backup copies.

FAQ: Answers to Frequent Questions