Disassembly Xiaomi Redmi Note 5 Plus: step-by-step guide

Xiaomi Redmi Note 5 Plus (also known as Redmi Note 5 Pro in the Indian market) has proven to be a reliable “people’s” smartphone, but time takes its toll. Batteries degrade, screens crash when dropped, and charging connectors fail after thousands of cycles of cable connection. Self-disassembly of the device can be a great way to extend the life of the gadget and save a significant amount of money on services of service centers.

However, the process of dismantling modern smartphones requires accuracy, understanding the design and the presence of a specialized tool. The internal layout of the Redmi Note 5 Plus is quite dense, and careless movement can lead to damage to the plumes or cracks in the rear panel. In this article, we will discuss each step in detail to minimize the risks.

Before you start physically interfering with the design of your smartphone, you need to prepare your workplace. You need a clean, well-lit surface, preferably with a static mat or just on a wooden table. Metal surfaces are better covered with fabric to avoid short circuits and scratches on the case.

Tools and training required

Good tool preparation is 50% of the success of the whole operation. Don't try to disassemble the phone with kitchen knives or needles, as this is guaranteed to lead to damage. You will need a set of precision screwdrivers, in particular the cross PH00 or PH000, since screws in Xiaomi are usually small.

To work with adhesive joints and plastic latches, you will need mediators, plastic shoulder blades or special suction cups. Use metal tools with extreme caution so as not to damage the internal components or break through the battery.

• 🔧 Set of screwdrivers (cross-crosses) PH00, PH000 flat).
• 📱 Plastic blades and mediators for opening the body.
• 🌡️ A hair dryer or heating plate (to soften the glue).
• 🧲 Magnetic mat or organizer for screws.
• 🔦 Powerful lamp or magnifier for inspection of small parts.

It's also important to take care of safety. Before you start, turn off your smartphone and make sure it's completely cooled if you've just used a heating appliance. Work in a ventilated room, as when you heat the glue, you can emit light fumes.

⚠️ Warning: Never use sharp metal objects to snap the back cover near the battery.Puncture of a lithium-ion battery can cause instant ignition or explosion.

Removal of the back cover and dismantling of the frame

Unlike many modern models, the Redmi Note 5 Plus has a metal body, but the back cover here is plastic and is attached to the glue around the perimeter. To remove it, you need to carefully warm the edges of the device. Use a hair dryer, evenly warming the perimeter for 2-3 minutes to a temperature of about 60-70 degrees.

After heating, insert the suction cup into the bottom of the back panel, create a vacuum and pull up slightly to form a gap. Insert a plastic blade into the gap that appears, gently insert the tool along the perimeter, cutting the adhesive layer. Do not plunge the blade deep so as not to touch the plumes coming from the buttons or antenna.

When the lid is fully unplugged, remove it, and you have access to the main board, but it's covered by a metal frame, which also acts as a radiator, and it's screwed with a lot of screws of different sizes, and you have to unscrew them in order.

Note that some screws may be hidden under warranty stickers or stubs.After removing all fasteners, gently lift the metal frame.It can sit tight, so use a suction cup or plastic card for even lift.

Disabling plumes and removing the battery

Once the metal shield is removed, you have access to the main components, and the first thing you need to do is to turn the device off, find the battery connector on the motherboard, and gently disconnect it with a plastic blade, which is a critical step for the safety of the future.

Then turn off all visible plumes: the display, touchscreen, main and front cameras, and the lower board plume. Be extremely careful with connectors, because they are very fragile. Don't pull the wires themselves, only act on the hard part of the connector.

If your goal is to replace the battery, you need to remove the battery plume after you turn off the battery. In the Redmi Note 5 Plus, it is attached to double-sided tape. To retrieve, warm up the battery area slightly again through the front panel (if the screen is already removed) or through the rear (if you change only the battery), but in our case we have already disassembled the case.

To remove the old battery, you can use special pull-out tapes if they are preserved, or gently tuck the battery with a plastic card, gradually separating it from the case. Do not use force so as not to deform the new element when installing.

Replacement of the display and touch screen

Replacing the screen with the Redmi Note 5 Plus is one of the most common procedures. Often the screen is sold as a complete frame, which greatly simplifies the process. If you have a module assembled, you only need to move the main components from the old frame to a new one or simply plug in the plume if the frame is already complete.

If you change only the glass or the matrix itself, without the frame, the process becomes complicated: you need to completely dismantle the remnants of the broken screen, thoroughly clean the metal base of the old glue and degrease the surface. Use isopropyl alcohol for cleaning.

Apply a new B-7000 glue or a special adhesive layer around the perimeter of the new bezels. Set the display module tightly pressed at the edges. Connect the plumes to the motherboard, but don't twist all the screws permanently. Turn on the phone to check the touchscreen and no image defects.

• 🧹 Carefully remove all fragments of old glass.
• 🧴 Degrease the surface of the frame before sticking the new screen.
• ⏳ Let the glue dry under load (you can put the load) during 1-2 hours.

The assembly is done in reverse order. Make sure the plumes are stacked smoothly and not clamped with a metal frame, otherwise this can lead to stripes on the screen or a touchscreen failure.

Working with motherboard and cameras

Dismantling the motherboard is rarely required, usually to replace the charging connector (which is soldered on the sub-board, but access to it sometimes requires a charge charge) or in serious repairs.

The antenna cable (coaxial) goes through special slots in the case. When you remove it, remember or photograph the path of the gasket. The cable has very thin connectors that are easy to break. Disconnect them by putting them vertically upwards.

The camera modules in Xiaomi Redmi Note 5 Plus are kept by a tight fit in the sockets and a pressing plate. After removing the clamping bar, the cameras are removed by a slight sway. Pay attention to the lenses: do not touch the glass with your fingers, fat marks will worsen the quality of the photo.

⚠️ Attention: When installing cameras, make sure that the plume is not twisted. Incorrectly stacking the plume can cause it to rub against the body and the camera to fail after a while.

Assembly of the device and checking leakage

The final stage is assembly. Put the metal frame in place, twist all the screws. Don't pull them over because you can rip the threads in the aluminum case. Twist the screws cross-to-cross for even pressing.

Connect the battery and check the phone's power, make sure the speakers, microphone, vibration and sensors are working, and only after testing all the functions successfully can the back cover be glued.

Apply a new glue or use adhesive tapes around the perimeter of the back cover, press the lid tightly and lock the device with rubber bands for 15-20 minutes before the initial glue grasp, and complete polymerization takes about 24 hours.

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Use rubber harnesses or stationery gums to tightly press the back cover during glue drying, which will provide better sealability and dust protection.

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The main secret of successful assembly is not to rush to twist the screws until the full performance check of all modules after the first connection.

Frequently Asked Questions (FAQ)