How to disassemble the case of the Xiaomi Redmi 5 Plus phone

Xiaomi Redmi 5 Plus has proven itself to be a robust device with a large screen, but even time-tested tech is prone to wear.Replacing a broken display, installing a new battery, or cleaning the speakers from dust are tasks that often require a complete dismantling of the device. Owners often wonder how to disassemble the body of the Xiaomi Redmi 5 Plus phone without damaging fragile structural elements.

The opening process of this gadget has its own technical nuances, which distinguish it from modern models with camera cutouts. It uses a classic scheme with a frame and press plates, which requires careful handling of screws. Careful follow of the instructions will avoid short circuits and mechanical damage to internal components during maintenance.

Before any manipulations begin, you need to prepare the workplace, you need a quality set of tools, including thin plastic blades, a sucker, tweezers and a cross screwdriver of the right size, and the absence of pile on the working surface is also an important factor in the safety of electronics.

Tools and workplace preparation

You can't disassemble the body properly without the right tools, and you don't need to use knives or sharp metal objects to open the body, because that will inevitably lead to chipping on the frame, or worse, damage to the plumes, and you'll need specialized plastic mediators and a sucker to carefully separate the glass.

Organize the lighting so that the light falls evenly without creating blinding glare on glossy surfaces. Small screws are easy to lose, so prepare a magnetic mat or container with cells in advance to sort the fastener into the dismantling stages. This will save time when you reassemble.

Pay special attention to the state of the battery before starting work. If you are planning to replace the battery, make sure that it has a charge of about 30-50%, a fully discharged battery can swell when you first connect to the network, and an overheated one can catch fire when punctured.

⚠️ Warning: Before starting disassembly, be sure to turn off your smartphone and let it cool completely if it was working.Working with a hot lithium polymer battery increases the risk of damage and fire.

To fix small parts, it is convenient to use a magnetic mat or ordinary sheets of paper with milestone signatures. This will help not to confuse screws of different lengths, since several standards are used in the design of the Redmi 5 Plus.

Removal of the back cover and primary dismantling

We start the immediate opening process. The back panel in this model is held on adhesive basis around the perimeter. To soften the adhesive, it is recommended to gently warm the perimeter of the body with a hairdryer or put the device on a heating platform. The temperature should not exceed 80-90 degrees Celsius, so as not to damage the display matrix.

Once warmed up, place a suction cup at the bottom of the back cover, closer to the edge. Pull the suction cup up, create a gap, and insert a plastic spatula into the gap. Use the tool along the perimeter, trying not to get too deep so as not to cut the fingerprint scanner plume.

Be careful at the top of the device, where the plumes of the cameras and the main connector are located, don't pull the lid far until you make sure all connections are free, carefully disconnect the scanner plume, putting your nail or plastic blade on the connector.

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If the back cover is difficult to remove, don't use force.Add a little more heat by warming the edge for 30-40 seconds to make the glue more elastic.

Once you remove the lid, you'll have access to the insides, and the first thing you need to do is unscrew all the visible screws that hold the plastic clamping bar that covers the main connectors of the motherboard, and the number of screws can vary depending on the board revision.

Disabling plumes and removing protective screens

Under the plastic bar, the basic modular connections are hidden, and there are the connectors of the display, the touchscreen, the main camera plume and the front camera, and the order of shutdown is not critical, but it's better to start with the ones that are closer to the edge.

Use a plastic tool to snap connectors. You need to move upwards, not sideways, so you don't break the contacts on the board. Once you turn off all the plumes, you can remove the metal screen that covers the motherboard, if it's designed by your revision.

In some versions of Xiaomi Redmi 5 Plus under the protective screen may hide an additional layer of insulation or NFC-When removing metal plates, be careful not to engage or break the thin conductors of antennas, which are often glued to the body or screen.

• 📱 Disconnect the main display plume, usually located on the left.
• 📸 Carefully remove the connectors of the main and front cameras.
• 🔋 Turn off the battery plume, which often comes with a separate wire or flat plume on the side.
• 🔊 Remove the connectors of the lower speaker and the upper speaker.

Now the motherboard is free of external connections, but it's still locked with screws, and you can look carefully at the perimeter and the center, and the screws can be hidden under stickers or under other components.

Extraction of motherboard

To extract the brain of the smartphone, you need to twist all the locking screws. 5 Plus, they're usually around. 10-12 They're located at the corners of the board, around the camera sockets, and in the center. Some screws can be of different lengths, remember their location.

Once you unscrew the mount, the board will not fall out on its own, it sits tightly in its seats and is held by plumes that may pass underneath it. Carefully raise the board from one edge, using a plastic blade as a lever.

Check if any plume (such as from volume buttons or on) passes under the board. If so, carefully remove it from under the edge of the board. The movements should be smooth, without jerking, so as not to damage the microscopic elements on the surface of the textolite.

Once you take out the board, put it on an antistatic surface, and you can access the bottom plume that connects the motherboard to the subboard, where the charging connector and the microphone are located, and this plume is often glued and requires careful separation.

Replacement of the battery and lower plume

The battery in Xiaomi Redmi 5 Plus occupies a significant part of the space and is glued to the frame with double-sided tape. You can not use metal tools to extract it. It is recommended to use a special liquid to dissolve the glue or reheat the back of the device.

You can slip a thin plastic card or a special spatula under the battery, and, making sawing movements, separate the battery from the body. Never try to put the battery on the top edge - this can cause it to puncture and fire.

The charge flex also requires attention, and it goes through the speaker and is fixed by the screws, and when you change the speaker or the charger, the entire plume needs to be replaced, because it often comes together with a microphone.

When installing a new battery, make sure the connector sits tightly in the connector. Poor contact can lead to a phone cycling reboot or no charge. Once all components are installed, conduct a visual inspection for forgotten screws.

Assembly of the device and verification of functionality

The assembly is reversed, but requires a lot of care. First, put the motherboard in place, plug all the plumes in, and make sure they're properly fixed with a characteristic click. Then screw all the screws in the original layout.

Before you finally seal the case and install the back cover, you need to do a primary test. Connect the battery and press the power button. If the smartphone is on, check the touchscreen, cameras, speakers and vibrator.

⚠️ Warning: Do not stick the back cover firmly until all systems are fully functional. If you forget to connect a plume, you will have to disassemble the device again, which can damage the new glue.

If all functions are working correctly, apply a new layer of glue or use special adhesive tapes (B-7000) around the perimeter of the case. Press the back cover tightly and lock it with rubber bands for 15-20 minutes before the initial grasp of the glue.

It is important to let the glue dry completely for a few hours before active use. In the first hours, avoid getting moisture and dust into the gaps, as the leakage has not yet been restored completely.

Frequent errors in disassembly

One of the most common mistakes is using excess force when unscrewing screws. In cheap models like the Redmi 5 Plus, threads in plastic racks can easily break off. If the screw doesn't go, check if all the adjacent screws are twisted and if something is in the way.

The second mistake is ignoring the heat, and trying to remove the screen or the lid without first heating the glue is almost guaranteed to cause cracks, and the glass becomes brittle and the glue becomes hard, which creates excessive stress in the structure when bending.

The third mistake is the loss of small parts. Screws, plastic plugs and pieces of old glue can get inside the case and cause a short circuit or crunch when the vibrator is running. Carefully clean the workplace after each stage.

Remember that good disassembly is the key to a long life of your device after repair. Take your time and make every move consciously.