How to disassemble Xiaomi Redmi 7 Pro yourself: from the lid to the motherboard

The Xiaomi Redmi 7 Pro may need to be disassembled to replace the battery, repair the display, or clean the dust. But without the design and the right tools, it’s easy to damage fragile plumes or latches. This model, launched in 2019, has a classic build with a plastic back cover and a non-removable battery, which requires a special approach.

Unlike Xiaomi’s flagship devices, which often use metal cases, the Redmi 7 Pro is relatively simple — provided you act carefully. The main difficulty is the battery’s adhesive mount and the fragile camera/display plumes. If you’ve never disassembled a smartphone before, we recommend that you first practice on a non-working machine or watch video guides.

⚠️ Warning: Disassembling the Redmi 7 Pro breaks the manufacturer's seals and gives no warranty. If the phone is warranty, contact the service center. Also remember that damage to the display plume when you sloppyly remove the lid leads to expensive repairs.

What tools will be needed to disassemble

Without the right tools, it's almost impossible to disassemble the Xiaomi Redmi 7 Pro, and the plastic cover is attached to the latches and glue, and the screws inside have a non-standard profile.

• 🔧 Plastic blades/mediators (2-3 (S) - for separation of the cover and the body without scratches.
• ⚙️ A set of screwdrivers with bats PH00, Y00 and T3 (different screws inside).
• 🔥 Dryer or thermo-air station - for softening the glue under the cover (temperature 60-80)°C).
• 🧲 Magnetic mat or container – to avoid losing small screws.
• 🔋 Plastic suction cup – helps lift the lid after heating.
• 🧴 Isopropyl alcohol (90%+) — glue-cleaner.

If you're planning to replace the battery, add a double-sided tape for the new battery and a plastic card to retrieve it. Don't use metal tools to smack the battery, which can be short-circuit!

Preparing the phone for disassembly: important steps

Before starting the disassembly, you need to turn off the device and prepare the workplace.

Turn off the phone and remove it. SIM-memory-card

Discharge the battery to 20-30% (to avoid fire if damaged)

Back up the data (disassembly may result in a reset)

Prepare a clean, well-lit workplace

The charger must be disconnected from the socket-->

Pay special attention to the battery. If it's bloated, it's best to leave the disassembly to the professionals, because the risk of battery damage when self-removing is extremely high, and check if the phone still has active features like Find My Device, which can lock the device after disassembly.

If you're disassembling a phone to repair a display, check it first. Sometimes the problem isn't in the matrix, but in the plume or motherboard. To diagnose, connect Redmi 7 Pro to your computer via ADB and follow the command:

adb shell dumpsys display

In conclusion, pay attention to the lines with HDR and ERROR – they will indicate possible hardware failures.

Step-by-step: how to remove the back cover

The back cover of Xiaomi Redmi 7 Pro is mounted on latches and glue. To remove it, act on the following algorithm:

1. Heat the case. Use a dryer at minimum power, evenly warming the edges of the phone for 2-3 minutes. The temperature should not exceed 80 ° C, otherwise the plastic will damage.
2. Separate the cover. Insert the plastic blade into the gap between the cover and the body (start at the bottom edge where the connectors are located). Carefully drive the blade along the perimeter, snapping the clamps.
3. Remove the lid. After you snap all the clamps, lift the lid with a suction cup. Don't pull too hard, there are fingerprint scanner plumes and antenna contacts under the lid.

If the lid doesn't respond, reheat the problem areas. Don't use excessive force, it can lead to cracks. After removing the lid, put it aside, avoiding the overbending of the fingerprint scanner plume.

Battery Removal: Risks and Proper Techniques

The battery in the Xiaomi Redmi 7 Pro is glued to the body, and its removal is the most important step.

1. Turn off the battery plume. It's located under a little black lid that says BATTERY, gently slap it on and unplug it with a plastic blade.
2. Heat the battery. Warm it up with a hair dryer on the back (to 60°C) for 1-2 minutes. This will soften the glue.
3. Put a plastic card under the battery, and slowly walk it along, separating the adhesive layer. Don't use metal tools!

If the battery is blown up, don't try to remove it yourself. Contact the service - the risk of short circuit is too high. Also remember that the new battery must be original (article MB-J0017ZP) or certified alternative with a capacity of 4000 mAh.

⚠️ Warning: If you have a sharp smell or smoke when you remove the battery, stop disassembling immediately, take the phone outdoors and do not use it for 24 hours.

Withdrawal of motherboard and other components

Once the battery is removed, you can start dismantling the motherboard. In the Redmi 7 Pro, it is mounted on 10-12 screws of different sizes, so we recommend taking pictures of their location before removing.

1. Disconnect all plumes: 📱 Display plume (under metal cover with inscription) LCD). 📸 Main and front camera plumes. 🔊 Dynamics and microphone plume.

Untwist the screws.

Remove the fee.

If you need to replace the charging connector or audio connector, they are located on a separate child board, which is attached to two Y00 screws, and to remove it, you just need to disconnect one plume from the motherboard.

Common Mistakes in Disassembly and How to Avoid Them

Even experienced craftsmen sometimes make mistakes when disassembling Xiaomi Redmi 7 Pro. Here are the most common of them and ways to prevent them:

• 🔧 Breaking the screws. Use high-quality screwdrivers with a tight fit of the bat. If the screw does not go, do not push harder, but check the size of the bat.
• 🔥 Overheating the body with a hairdryer. Keep the hairdryer 5-7 cm away and don't stay in one place for longer than 10 seconds.Redmi 7 Pro plastic melts at 90°C.
• 📱 Damage to the display plume. Never lift the lid too high, the plume is short and easily torn. Use the blade to hold the lid in the elevated position.
• 🔋 Short circuit when working with the battery. Before removing the battery, be sure to turn off its plume. Do not use metal tools to tattle.

Another common problem is the loss of screws, so to avoid this, use a magnetic mat or a container of cells, and it's also useful to take pictures of the screws before you unscrew them, which will make it easier to reverse assemble.

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If the screw fell inside the case and is not visible, do not try to get it with tweezers - you risk damaging the components on the board.

Assembly of the phone after disassembly: nuances

The Xiaomi Redmi 7 Pro should be assembled in reverse order, but with a few key points in mind:

1. Check plumes. Make sure all plumes (display, cameras, fingerprint scanner) are tightly connected, without distortion, and a loose connection can lead to a black screen or a camera that is not working.
2. Battery fastening. If you've installed a new battery, use the original two-way tape. Don't glue the battery to superglue or tape, it will disrupt the heat sink.
3. Tighten the screws. Don't pull the screws over, because it can cause cracks in the board. It's enough to tighten them without effort.
4. Testing. After assembly, turn on the phone and check: 📶 Sensor and display operation. 📸 Cameras (main and front).li> 🔊 Speakers and microphone. 🔋 Battery charging and discharge.

If the phone does not turn on after assembly, check:

• Connecting the battery plume.
• Density of attachment of the motherboard to the contacts of the housing.
• Short circuit (try to connect to charging – if the phone warms up, but does not turn on, this is a sign of KZ).

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If you turn on the phone after assembly, but the touchscreen doesn't work, it's likely that the plume is not tightly connected or damaged. Take the phone apart and check the connection.

Frequently Asked Questions (FAQ)