Replacement of the battery Xiaomi Redmi Note 6 Pro: instructions

Smartphone Xiaomi Redmi Note 6 Pro, released in 2018, still pleases many users with its performance, but time does not spare lithium-ion batteries. If your device began to quickly discharge, turn off in the cold or shows the wrong percentage of charge, then it is time to replace the battery. This procedure requires care, since the design of the device involves a glued back cover and dense layout of internal components.

Before you start, you need to prepare your workplace: a table with good lighting, a set of screwdrivers, a sucker and plastic blades. It is important to understand that self-disassembly is not warranty, but for older devices it is often the only economical way to bring the phone back to life. In this article, we will detail each step to minimize the risks of damage to the plumes or the case.

Take your time, because the display plumes and buttons are very fragile and easily break when you do not care. Correctly executed replacement will extend the life of the gadget for several years of active use. Next we will look at the list of tools and step-by-step algorithm of actions for successful completion of the operation.

Tools and training required

It's not enough to have the desire to replace a battery, you need the right toolbox, and the main element is the heater, because the back cover is held on a powerful adhesive layer, and you can use a professional hair dryer, a temperature-adjusted thermophen, or even a conventional household heating pad if you're careful.

The second important aspect is safety, and before any electronic work is done, you have to turn off the device, and if the phone doesn't turn on because of a dead battery, it's okay, but if it does respond to buttons, it's better to do it programmatically. SIM-card and memory card so as not to damage them in the process.

⚠️ Warning: Do not use an open fire (gas stove or lighter) to heat the case, as this may melt the plastic or damage the back-side screen matrix.

A list of what to put on your desk before the procedure:

• 🔧 Set of screwdrivers (cross-haired) PH000 flat)
• 🔥 Dryer or heating panel
• 📱 Plastic blades and mediator
• 🧲 Magnetic mat or screw container
• 🧴 Clay. B-7000 or double-sided scotch for assembly

Once you have everything you need, you can start the first step, and make sure you have tweezers on hand that will help you extract small parts from hard-to-reach areas of the case without risking damage to neighboring elements.

Dismantling of back cover and screws

The process of opening the Redmi Note 6 Pro body starts with heating the perimeter of the rear panel. Turn on the hair dryer and evenly warm the edges of the device for 2-3 minutes, constantly moving the flow of hot air so as not to overheat one point. The plastic must become warm to the touch, but not hot, otherwise there is a risk of deformation.

After heating, insert a suction cup at the bottom of the back cover and pull up slightly to create a gap. Insert a thin plastic blade into the resulting gap. Driving the tool along the faces, cutting the adhesive layer, but try not to go deeper than 2-3 millimeters in order not to touch the internal components.

When the lid is removed, you will see the inside of the smartphone, closed with a plastic lining. To access the main nodes, you will need to unscrew many screws. On the Xiaomi Redmi Note 6 Pro, they are large, and they are located around the perimeter and in the center.

If you unscrew all the screws you see, don't rush to remove the protective plate, check if there are any hidden fasteners under the stickers or in the recesses, and if you make sure that all the screws are removed, you can gently lift the plastic protection, starting at the bottom of the charger connector.

Disconnection of plumes and protection of components

When you take off the plastic lining, you'll see the main board, the battery and the camera module, and the most critical operation at this point is to turn off the plumes correctly. Don't pull the wires or the film, always take the hard connector.

First, you need to disconnect the plume from the bottom board (where the charging connector and speaker) to the main board. Then disconnect the display and touchscreen plumes. To make work easier and prevent short circuits, experienced craftsmen recommend immediately disconnecting the battery connector from the motherboard.

After turning off all the plumes, remove the vibrator and main camera if they interfere with battery access.In the Redmi Note 6 Pro model, the battery occupies almost the entire center part and is fixed to double-sided tape throughout the area.

Removing the old battery

The hardest part is to remove the old battery without damaging the shell. You can't heat the battery itself, so you need to apply heat to the bottom of the smartphone housing where the battery is located. Use a hair dryer to warm up the back of the case for 3-5 minutes.

Take a thin but strong fishing line or a special plastic card, carefully insert the tool under the edge of the battery and smoothly cut the adhesive layer, do not try to tamper with the battery with the end of the screwdriver, this is guaranteed to damage it.

⚠️ Warning: If the battery is swelling, handle it very carefully. Any mechanical damage to the bloated battery may cause fire.

To make it easier, you can use special liquids to dissolve the adhesive by applying them around the perimeter of the battery with a syringe. However, at home, the most common method is heating and mechanical separation. Try not to deform the new element that you plan to install.

After removing the old battery, thoroughly clean the seat of glue residues. The surface should be perfectly smooth and fat-free so that the new battery will lie flat and securely fixed. Use a napkin moistened with alcohol or isopropyl solvent.

Installation of a new battery

Before you stick a new battery, check its voltage with a multimeter if possible. The new battery should be charged in the region of 3.7-4.2 volts. If the voltage is critically low, the phone may not turn on immediately after assembly.

Apply a thin layer of B-7000 glue to the body around the perimeter of the seat, or use special adhesive tapes that come with the new battery. Don't apply glue to the battery itself, only to the body of the smartphone. Carefully place the element in place, combining the connector.

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Before the battery is finally glued, plug in the plume and check if the phone is switching on and charging, which will save time for re-disassembly in the event of a marriage.

Wait for the glue to dry out (about 5-10 minutes) so that the battery doesn't move. Make sure the connector sits tightly in the back of the board. You can now start the reverse assembly, which is done in reverse disassembly.

Put the plastic pad in place, twist all the screws. Pay special attention to the screws around the connectors and in the corners of the case. Don't pull the screws, the plastic of the Xiaomi case can crack with excessive force.

Assembly and primary calibration

The final step is to put the back cover in place, put a new layer of glue around the perimeter of the case, put the lid on, and press it tightly all over the circuit, and lock your smartphone with money bands. 15-20 minutes before the glue is fully grasped.

After assembly, turn the device on. The first charge-discharge cycles will determine the actual capacity and click of the controller. It is recommended to completely discharge the phone before turning off, and then charge to 100% on the device turned off.

If the phone is on, displays the correct percentage of charge and holds the load, then the replacement was successful, otherwise you will have to reopen the case and check the density of the connectors.

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High-quality calibration of the battery in the first days after replacement significantly prolongs its service life and ensures the accuracy of the display charge.

Frequently Asked Questions (FAQ)