How to remove the battery from the phone Xiaomi Redmi 6A

Xiaomi Redmi 6A has become one of the most popular budget devices, but over time, even a reliable lithium-polymer battery loses its capacity. Users often notice that the device begins to quickly discharge, spontaneously turn off at 20% charge or inflate, which creates a risk of damage to the screen. In such situations, the only right solution is to replace the power source, but the design of modern gadgets involves difficult access to internal components.

Unlike older models with removable covers, the Redmi 6A battery is hidden under the back panel, which is tightly glued to the frame around the perimeter of the case. The extraction process requires accuracy, special tools and an understanding of the physics of the process, so as not to damage the plumes, display or the new battery itself.

This article provides a detailed guide to help you safely perform replacements, and we will look at the necessary tools, disassembly steps, safety practices when working with chemical current sources, and answer frequently asked questions.

Diagnostics and workplace preparation

Before you start a physical disassembly, you need to make sure that the problem lies in the wear of the battery. Symptoms such as sudden jumps in percentage of charge or bloating of the back cover indicate the need for replacement. However, sometimes a software failure or background processes can simulate a discharge, so it’s worth checking the usage statistics in the Settings menu. → Battery and performance: If wear is confirmed, workspace should be prepared.

Workplace organization is a key success factor. You'll need a clean, well-lit desk, preferably with antistatic coating or just no pile. Static electricity can damage the sensitive electronics of a smartphone, so it's recommended to use an antistatic bracelet or periodically touch grounded metal objects before work.

Working with the Redmi 6A requires a specific set of tools that are not always in a standard home medicine cabinet. Lack of suitable tools often leads to chipped body or damage to the plumes.

• 🔥 Hair dryer (construction or household) for softening glue.
• 🔥 Thin plastic mediators or a suction cup to open the body.
• 🔥 A set of cruciform sting screwdrivers (PH00 or PH000).
• 🔥 Tweezers with dielectric tips for working with small details.

⚠️ Warning: Never use metal blades or knives to pluck the back cover.The metal can damage the internal plumes or cause a short circuit if it touches the contacts under tension.

It is also important to make sure that the battery is no more than 25-30% before work begins. A fully charged battery is more prone to ignition when it accidentally punctures or deforms during retrieval. If the phone turns on, discharge it; if not, be as careful as possible.

Removal process of the back cover

The most difficult step is to carefully separate the rear panel from the frame. In the Xiaomi Redmi 6A model, the cover is attached to a two-part glue that hardens over time. To soften the adhesive, you need to warm the perimeter of the device evenly. Don't hold the hair dryer at one point for too long so as not to overheat the display matrix or plastic elements.

The optimum heating temperature is about 80-90 degrees Celsius. Grease the edges for 2-3 minutes, periodically checking the heating with your finger (carefully not to get burned). Once the body becomes warm to the touch, you can start creating a gap. Use a suction cup by gluing it to the bottom of the back panel, and slightly pull up, while inserting a thin plastic mediator into the resulting gap.

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If the sucker doesn't stick to the glossy surface, wipe the attachment site with alcohol or use a piece of tape to create roughness for better grip.

Move the mediator along the perimeter, trying not to dive deeper than 3-4 mm, so as not to touch the camera plume or side buttons. The glue should be cut, not stretched. If you feel strong resistance, warm up the area again with a hairdryer. Mechanical force without preheating is guaranteed to lead to a crack in the glass or plastic.

Once you've gone through all the sides, the lid should be easy to detach, put the inside up on the clean surface so that you don't scratch the camera or the sensors, and now you have access to the insides of the Redmi 6A, and you can move on to disassembling the protective elements.

Dismantling protective slats and plumes

Inside the case, you'll see a metal plate covering the mainboard and the connections, and it's fixed by multiple screws of different sizes. It's important to remember the location of each screw, because their length may vary. Using a long screw in the hole for a short one can damage the motherboard or break the contacts.

Carefully unscrew all the screws that hold the metal protection, and put them in a magnetic tray or on a piece of paper with the markings, and when you remove the plate, you get access to the connectors, and the first thing you need to do is turn off the battery plume, which is a critical step to ensure that you're safe.

To turn off the plume, use a plastic blade or nail. You can dent the connector from the bottom up with minimal force. Don't pull the wire itself, just the rigid plastic connector. Once the battery is turned off, all other manipulations are safe because the power circuit is broken. You can now disconnect the display and touchscreen plumes if you need a full fee removal, but it's not usually required to replace the battery.

Check the insides for dust or moisture. If you find traces of oxidation, the contacts must be cleaned with alcohol before installing a new battery, and corrosion can cause unstable work even with a new battery.

Removal of the old battery

In the Redmi 6A, the battery is further fixed by an adhesive strip, usually located under the cell or on the sides, which you can't pull out just like that, which will deform the battery body, which is strictly forbidden.

For safe extraction, it is recommended to use isopropyl alcohol. Carefully apply a few drops of alcohol under the edges of the battery using a syringe or pipette, and wait 2-3 minutes. Alcohol will dissolve the glue, and the battery will move easier. You can also use the heating method, but with great care, so as not to damage the new chemical elements.

Use a plastic card or a special spatula to slowly loosen the battery. Move the tool under the battery, cutting off the glue residue. If you feel the battery is beginning to deform, stop and add another solvent. Never use metal tools to tweak the battery from under the bottom.

Once the glue has weakened, carefully remove the power element while holding on to its edges. Pay attention to the condition of the old battery: if it swells, this confirms the need for replacement. Make sure that there are no pieces of old glue or debris left in the niche that can prevent the new component from being tightly installed.

Installation of a new battery and assembly

Compare it to the original battery before installing a new battery, which should be identical in size, contact location and voltage (usually 3.85V or 4.4V for this model), and use of incompatible analogs can lead to incorrect operation of the power controller or even failure (motherboard).

Clean the niche of old glue residues with an alcohol napkin. Apply a new layer of special B-7000 glue or use double-sided tape that comes with a new battery. Don't apply too much glue to keep it from squeezing out on the contacts. Tightly press the battery, paying special attention to the connector area.

Connect the new battery plume to the characteristic click. Make sure the connector is up smoothly and without skewing. Now you can do the initial check: without closing the case, press the switch gently. If the screen catches fire and the phone starts charging, then the replacement has been successful.

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Successfully activating the phone before the final gluing of the case is the only way to make sure you don’t damage the plume and the new battery is in good working order.

If you're working, degrease the edges of the case and the back cover. Apply a thin layer of glue around the frame (if the old tape is not preserved) and press the back tightly. Lock the phone with rubber bands 15-20 minutes before the initial glue grasp. Full polymerization takes about 24 hours.

First launch and calibration

Once assembled, the device takes time to calibrate the power controller. In the first hours of operation, the Xiaomi Redmi 6A may not correctly display the percentage of charge. This is normal for a new battery that has not yet passed the charging-discharge cycles. The system must "learn" to work with the new element.

For proper calibration, it is recommended to completely discharge the phone before turning it off, and then charge it to 100% when turned off. After reaching full charge, leave the phone on charging for another hour. This cycle is desirable to repeat 2-3 times, this will help the controller accurately determine the residual capacity.

Watch your heating temperature as you go about your operation. A new battery may warm up a little in the early days, but it shouldn't be hot to the touch. If you notice a lot of heat in the area of the camera or a rapid loss of charge, it might not be the battery that's the problem, but the software or other components.

Regular maintenance and use of original or quality parts will ensure your smartphone has a long life. Redmi 6A with a new battery will once again be a reliable assistant in everyday tasks.

Frequently Asked Questions (FAQ)