Replacement of volume buttons on Xiaomi Redmi Note 7: a complete guide with photos and tips

Xiaomi Redmi Note 7 is one of the most popular smartphones in the budget segment, but even these reliable devices eventually fail mechanical elements. Volume buttons are a typical "weakness" of the model: they start to run, do not work well or completely stop responding to presses. If you encounter this problem, do not rush to carry the phone to the service: you can replace the buttons yourself, saving up to 70% of the cost of repair.

In this article, you will find a step-by-step guide with photos of each stage, a list of tools you need and recommendations for choosing spare parts. We will also explain how to avoid errors when disassembling the Redmi Note 7, which can damage the plumes or display. If you have never repaired a smartphone, do not worry: the process of replacing the volume buttons is an entry-level repair of complexity and takes no more than 30-40 minutes.

Before you start, make sure that the problem is in the buttons, not the software failure. To do this, check the response of the smartphone to the presses in the Engineering menu mode (how to get there, read the section "Diagnostics"). If the buttons do not work there, then the mechanical malfunction is confirmed.

The reasons for the failure of the volume buttons on the Redmi Note 7

The volume buttons on the Xiaomi Redmi Note 7 break more often than the power button, for example.

• 🔹 Mechanical wear: The plastic locks inside the button wear off over time, especially if you adjust volume frequently.
• 💦 Moisture or dust: Even if the phone is not sinking, condensation or fine particles can block moving elements.
• 📱 Fall or impact: the case of Redmi Note 7 is made of glass, but the inner board with buttons is attached to the metal frame - when hit hard, it can deform.
• 🔧 Poor build: in some batches of devices, buttons were installed with a skew, which accelerated their wear.

Interestingly, the Redmi Note 7 Pro is less common, with slightly different button mechanisms with improved dust protection. If your smartphone is warranty, you should contact a service center: an official replacement will cost less than buying original parts.

⚠️ Warning: If the buttons stop working after falling into water or contact with liquid, do not disassemble the phone immediately.First dry it in rice or silica gel 24-48 hours - moisture inside the case can cause corrosion of contacts on the board.

Diagnosis: How to make sure the problem is in the buttons?

Before disassembling the Redmi Note 7, make sure the malfunction is not due to software failure or plume damage.

1. Reboot your smartphone. Sometimes the buttons freeze because of errors in MIUI.
2. Check your response to presses in Engineering Menu Mode: Open the Phone app. Enter the combination ##4636##. Select Equipment Testing → Buttons. Press Volume buttons — if the menu does not display taps, the problem is mechanical.

Connect your smartphone to your computer and check if it responds to clicks in ADB (for advanced users).

If the buttons don't work in either mode, start replacing them. If they work in the engineering menu but don't respond normally, the problem is the firmware, and then resetting or flashing them will help.

Essential tools and spare parts

To replace the volume buttons on the Xiaomi Redmi Note 7, you will need:

Important: Don't buy the cheapest buttons on AliExpress, which often turn out to be fakes with poor tactile returns. Target sellers with ratings above 98% and reviews with photos. Original parts can be found under the MDY-08-18 article (for Redmi Note 7).

⚠️ Warning: If you buy a metal-mounted button (not just a plastic "cap"), make sure that the kit comes with double-sided tape for fixation.

Step-by-step instructions for replacing volume buttons

Disassembly of the Xiaomi Redmi Note 7 requires care, but is not overly complicated.Follow the instructions and take your time - most damage occurs due to rush.

Step 1: Turn off and prepare the phone

Before disassembling, be sure to turn off the smartphone and remove SIM-If the battery is less than 50% drained, recharge the device, which will prevent accidental shutdown during operation.

Step 2: Removal of the back cover

The back cover of the Redmi Note 7 is glued to the body to remove it.

1. Heat the edges of the lid with a hair dryer (temperature no higher than 60°C) or put the phone on a warm battery for 5-7 minutes.
2. Insert a plastic mediator into the gap between the lid and the case (start at the bottom corner where the USB-C connector is).
3. Carefully move the mediator around the perimeter, separating the lid. Do not apply force - if it does not respond, warm up the area again.

Critical: Do not use metal tools – they will scratch the glass and can damage the plumes under the lid.

Step 3: Unscrew the screws and remove the metal plate

When you take the lid off, you'll see a metal plate covering the insides of the phone, and it's attached to 10 or 12 PH00 screws. Carefully unscrew them and remove the plate. Spread the screws in order -- they can vary in length!

Step 4: Disconnecting the battery plume

Before any manipulation of the insides of the phone, be sure to unplug the battery plume. It's on top of the board and it's attached with a small connector. Tap it with a plastic spatula -- don't use metal!

⚠️ Warning: If you don't turn off the battery, short circuits when you touch the board can knock out the motherboard. Even if the phone is turned off, the capacitors still have voltage.

Step 5: Replace the volume button

The volume button on the Redmi Note 7 is on the right side of the board, and it's attached to a metal frame and connected to the board with a small plume to replace it.

1. Carefully disconnect the plume of the button (it can be glued - put a spatula).
2. Take the old button off the frame. It can be mounted on latches or double-sided tape.
3. Set a new button in place, making sure that it sat smoothly, without distortion.
4. Plug the plume back in. It should snap with a click.

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Before installing the new button, wipe the contacts on the board and plume with an alcohol wipe. This will remove oxidation and improve the connection.

Step 6: Build the phone

Collect the phone in reverse order:

1. Set a metal plate and twist the screws (make sure they stand in the same holes!).
2. Stick the back cover. Use a new double-sided scotch or B7000 glue -- the old glue is no longer holding.
3. Press the lid evenly over the entire surface (you can put the phone under the press for 10-15 minutes).

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

1. Connecting the battery plume (the most common reason).
2. Integrity of contacts on the board (may be oxidation or break).
3. Correct installation of the metal plate (it should not close the contacts).

Where to buy high-quality volume buttons for Redmi Note 7

The quality of the part depends on how long the repaired button will last. Here are the places to buy:

When buying on AliExpress, pay attention to:

• 📸 Photo of the real product (not stock pictures).
• ⭐ Reviews with photos (especially negative ones – they often write about problems).
• 📦 The presence of sealing gum (it protects against dust).

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If you buy a button on AliExpress, order 2 at once. The cost is almost the same, and the second one can come in handy if the first one turns out to be defective.

Alternative ways to solve the problem

If you don’t want to disassemble your phone or aren’t confident in your abilities, there are several alternative ways to make volume buttons work:

• 🔄 Software button emulation: Apps like Button Mapper allow you to reassign volume to touch gestures or virtual buttons.
• 🔧 Cleaning buttons without disassembling: If the problem is dust, you can try blowing the buttons with compressed air (a canister for cleaning equipment!
• 📱 Bluetooth headphones: You can adjust the volume directly on the headphones without touching the phone buttons.
• 🔧 Repair in the service: If the phone is warranty, contact the official Xiaomi service. the cost of replacing the buttons is about 1000-1500 ₽.

Software solutions are only suitable if the buttons respond to pressing, and if they are completely dead, only replacement or repair in the service will help.

FAQ: Frequent questions about replacing volume buttons