How to open a Xiaomi phone: tools, step-by-step instructions, how to remove the battery, safety precautions

Tools we need:

Plastic spatula
If you don’t have a plastic spatula, you can use a bank card or a guitar pick
SIM Tray Removal Tool
Good workplace lighting
Accuracy and attentiveness

Xiaomi Redmi parsing sequence

Step 1 - remove the SIM card tray
Step 2 – implement the tool
Step 3 – Removing the Fingerprint Sensor
Step 4 - remove the battery

Video tutorials for analyzing Xiaomi Redmi:

Redmi 3
Redmi 4
Redmi 5

Step 1 – Be sure to remove the SIM card tray

Before you start disassembling your Xiaomi Redmi phone, you must completely remove the SIM card tray. This needs to be done because the tray inside the phone goes inside the motherboard, where the contacts of the SIM card and radio module are closed, and on the outside the tray is attached in the middle of the side of the phone. When disassembling, we will completely separate the back of the case from the phone, and if we do not remove the tray, it will not allow us to do this.

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Step 2 – Introduction of plastic tool

After you have removed the tray, you can begin disassembling the phone.

Attention: only plastic tools can be used! You cannot use any metal tool, because... The phone parts are plastic and metal deforms them very easily.

Take a plastic spatula and try to insert it into the gap between the front and back cover. When the spatula slightly enters the gap, it must be moved around the entire circumference of the phone several times. This procedure is necessary in order to unlatch all the latches that secure the back cover to the front panel around the perimeter.

If you don't have a special instrument, you can use a credit card or a guitar pick to play the guitar. The plastic card will have to be slightly sharpened before starting the operation, because... she is too thick to carry out such delicate manipulations.

After you have run the tool around the entire perimeter several times, the back cover will begin to move away from the panel. Carefully pry it up and go through the tool again in those places that do not give in.

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Step 3 – Be careful with the fingerprint scanner

Some Xiaomi Redmi models have a fingerprint scanner on the back panel. When removing the back cover, do not rush, because if you pull it too hard, you can damage the wire that goes from the sensor to the motherboard. Carefully turn over the back panel and use tweezers to disconnect the sensor wire from the microcircuit. It is attached in a special groove. Don’t pull too hard, everything needs to be done carefully.

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Step 4 – Removing the Battery

Most likely you want to disassemble your phone to change the case or replace a worn-out battery.

Before you remove the battery, make sure you disconnect the 2 wires that secure it to the motherboard. They also fit into special slots, so they are easy to detach and put back together when reassembling.

After disconnecting the wires, do not rush, because... The battery is attached with double-sided tape to the phone chassis. Place the same tool under the battery, feel for the viscous adhesive tape and move it from left to right and vice versa, gradually peeling off the battery. Do not make sudden movements, do everything smoothly and carefully.

The tape is disposable, and when you remove the battery, you will most likely damage it greatly. Therefore, if you want to change the battery, buy thin double-sided tape in advance to stick the new battery. Otherwise, there is a high chance that the battery will dangle inside the phone, causing you discomfort.

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Tools for opening the back cover

A few years ago, installing a SIM card required disassembling the device. Removing the back panel was not difficult - otherwise it was impossible to connect a SIM card. Modern devices are equipped with a special tray for a SIM card and an additional memory card, as well as a non-removable battery, so there may not be a need to open the lid of a Xiaomi smartphone in normal mode.

But sometimes this action is necessary: for example, in the event of a fall into water. To save the gadget, you will need to urgently remove the battery if other shutdown methods do not work. Some people risk doing more complex work on their own - changing not only the battery, but also the screen sensor or speakers. This instruction will help, first of all, if you need to open Xiaomi Redmi 4x. But it is also useful for owners of other models of the Xiaomi Redmi 4 line to learn how to remove the back cover.

Ideally, the work should be carried out with special equipment - you can find a special spatula for disassembling the device for sale on the relevant websites. But in emergency conditions you have to make do with improvised means - a guitar pick or a plastic card. You will also need a thin screwdriver and tweezers. A special pin is used to remove the SIM card, but it can be easily replaced with a paper clip.

Attention!
If you need to open a Xiaomi Redmi 4x smartphone, you need to act as carefully as possible. Do not use sharp objects due to the risk of scratches. And if the internal latches break, the damage caused will be irreparable.

Required Tools

To disassemble the plastic case, you will need devices with the following characteristics:

Reliability. They must withstand the load.
Smooth contours and smooth surface. Sharp edges can scratch the surface of the smartphone during installation and disassembly.

To open the Xiaomi cover, you will need a phone repair tool. Its functions at home can be performed by a plastic guitar pick or a bank card.

To remove the old battery and install a new one you need:

thin Phillips screwdriver;
tweezers;
double-sided tape.

The screwdriver increases and transmits the rotational movements of the hand to a small, specially sharpened working part.

Working conditions:

Disassembly must be carried out on a flat and clean surface. A table, bedside table or wide window sill are suitable for this process.
The parts to be removed are placed in the order in which they were dismantled. This will help with reassembly.
Before work, you must wash your hands or use thin special gloves.
The room is provided with good lighting and ventilation.
Safety measures are observed.

Step by step instructions

Before starting the process, you should make sure that the power is turned off. After pressing the button, you should wait a couple more minutes so that all processes are completed. Then proceed in accordance with the step-by-step plan:

Before opening the cover of Xiaomi, you must completely remove the tray into which the SIM and microSD cards are inserted. To do this, insert the pin into a special hole and press lightly. After a gap appears, the part is picked up by the edges and pulled out.
The spatula or its substitute is carefully inserted into the gap between the screen and the back of the case and slowly moved, widening the gap, in the direction from the lower corner to the upper. If the latches have opened on one edge, do not jerk sharply and try to remove the panel in one motion, so as not to damage the device. You can use a suction cup, but only at the last stage and very carefully.
When all the holders are released, the back cover of the Xiaomi Redmi can be removed, but this must be done as carefully as possible due to the risk of damaging the fingerprint scanner cable. To avoid rupture, you need to pick it up with tweezers and put it aside (you can use the removed wall as a tray).
To assemble the gadget, all steps are performed in reverse order.

This instruction will be relevant for other smartphones. If you need to open the cover of Xiaomi Redmi note 7, the steps will be similar. The only difference is that it is not recommended to disconnect the fingerprint sensor cable completely; you can simply fold it aside along with the socket to which it is attached.

Attention!
Before starting work, it is better to protect the screen with a special film. If it is not there, stick tape on the display and carefully remove it when finished. Thus, in order to remove the cover of a Xiaomi Redmi phone or devices of another line, you only need to be careful and patient.

What you will need

Disassembling a phone is a rather painstaking and fragile process. Therefore, it is better if you already have some skills in this area. In any case, being equipped with the necessary tools and means will help make disassembly safer for the gadget.

Materials and tools that may be useful:

a special paperclip for the SIM card that comes with the phone (in extreme cases, you can use a pin);
crosshead screwdriver;
tweezers for removing parts;
a plastic or nylon spatula or hard discount cards for removing the back cover;
new parts (for example, a battery) that will replace the old ones.

How does the phone case work?

In order not to damage the device, it’s good to know how it works mechanically, what parts are located where, etc. The entire body on the back panel is made of aluminum with plastic inserts. The Xiaomi Remi 4x and Xiaomi Redmi Note 4x also have a fingerprint on the back.

Inside the phone is the motherboard. On one side, the display is attached - that is, the screen, and on the other side, the processor, cameras, battery, mini-cards and other elements are attached. The display is attached to the back panel with special latching parts. They are easy to unfasten.

How to disassemble Xiaomi Redmi 4x phone

Now let's move on directly to the parsing process.

Instructions:

Before any actions with your phone, be sure to turn it off.
The very first step is to remove the SIM card. This must be done using a special paper clip.

To unfasten the end screws connecting the two parts of the smartphone, insert a special spatula or, in extreme cases, a card from the display side a couple of millimeters inward, and then slide it along the entire perimeter of the screen. Hold the lid with the same cards, fingernails or other available means to prevent it from slamming back.

Next, carefully remove the back cover, being careful not to touch the fingerprint scanner.

Carefully remove the scanner using tweezers.
Now we turn off the sensor near the battery.

It is necessary to unscrew the top bolts from the cover with the antenna. Set them aside and don't lose them.

Unfasten the connecting parts next to the board. Also set the screws aside, separately from the previous ones.

We remove the battery. To do this, use tweezers to remove the adhesive layer on the sides. If it does not come out completely, warm up the smartphone, add isopropyl alcohol and pry off the battery with a plastic card. Then remove the remaining adhesive sheets.

And then we remove the green board, removing the antenna cable.

Next, you can extract the required components.

Ready. This concludes the analysis.

Please note that some components may be attached with cables, so if something cannot be removed, first unclip the cables from the connectors.

Replacing the display

Screen breakage, cracks or a completely non-working display are current cases. If your device did not have a protective glass, you can replace the screen itself.

Before replacing the display, you should warm up the screen with a special hair dryer.

Instructions:

After removing the battery, remove the chip on top and the green board.
The following elements from the old one will need to be rearranged into the new screen: front camera, vibration motor, side keys (volume, power) and speaker.
Then transfer all the cables from the old display to the new one.
Remove the protective film.
Check that all the details are present on the new screen.
Reassemble the phone in reverse order.

Ready.

Replacing the touchscreen

The difference between a screen and a touchscreen is that broken glass simply interferes with the use of the phone, while a broken touchscreen interferes with the operation of the sensor.

Replacing a touchscreen is very similar to replacing a display.

Instructions:

After removing the battery and system board, clean this area to remove any remaining adhesive or dust.
Next, warm up the phone again with a special hairdryer.
If the screen is broken, use tape to prevent shards from flying or getting into your fingers.
Using tweezers or another sharp object, pry up the touchscreen and remove it.
Wipe down and degrease the display mold.
It is also recommended to use isopropyl alcohol, but never a rag soaked in plain water.
Apply glue around the perimeter of the frame.
After threading all the cables, place the new module on the case. Do not press too hard, the display will grip well.
Wait a while for the attachment process to complete.
Reattach all components inside the phone in reverse order.

Ready.

Battery replacement

When purchasing a new battery, make sure that it fits your Xiaomi model exactly.

Instructions:

Disassemble the phone following the first instructions.
After removing the old battery, attach the new one with double-sided tape.
Check the phone's functionality.

Ready.

Source: https://xiaon.ru/faq/kak-razobrat-telefon-xiaomi-redmi-4x.html

How to remove the battery from Xiaomi and replace it

The entire internal filling of the device is hidden by special panels, which are secured with bolts. If the battery needs to be replaced, simply opening the cover of your Xiaomi phone will not be enough. You must first remove the protection by carefully unscrewing the bolts with a screwdriver. Next, the following actions are performed:

carefully disconnect the battery cable;
the battery is removed;
the new power supply is connected to the connector and inserted into place;
The protective panel is fixed.

After this, you can press the power button before assembly to check if the device works. Then turn it off again and begin reassembly.

Attention!
When removing the battery, you can make the process easier by slightly heating it with a stream of warm air. This will soften the glue on the double-sided tape that holds it in place. A regular hairdryer set to the lowest setting will do to avoid overheating the device.

Some smartphone models may have their own characteristics. For example, Xiaomi Redmi 3s will require not only opening the back cover, but also removing the motherboard. Here you also cannot do without step-by-step instructions:

Unscrew all the retaining screws around the perimeter, disconnect the cables and cables.
The printed base is lifted using a spatula or plastic card and removed with tweezers, after which the rear cable is disconnected.
Replace the battery in the standard way.
Assembly is done in reverse order.

If you have to work with Xiaomi Redmi 5, it is also not enough to simply open the back cover. You will have to tinker with removing not only the motherboard, but also the auxiliary board located in the lower compartment of the device.

Screen replacement

The phone screen often breaks. Cracks may appear on it, making it difficult to use the display. If the protective glass is missing, you will have to replace the screen. Before disassembling the smartphone, the display is warmed up using a hair dryer.

Then you need:

disassemble the phone;
remove the battery;
remove the chip and green board;
move the vibration motor, front camera, speaker and power and volume keys to the new screen from the old one;
move cables;
remove the protective film;
check for details on the new screen;
collect the phone.

After replacing the element, the smartphone is turned on and its functionality is checked.

Security measures

Repairing a smartphone, like any other technically complex device, requires compliance with the rules. If you need to open Xiaomi Redmi Note 5 or a phone of another model line yourself, you need to take care of safety precautions.

It is important in what conditions the work will be carried out - the room should be sufficiently lit and well ventilated. It is unacceptable to open the gadget in places with high humidity. The surface must be smooth and clean. During the dismantling process, you should pay attention to the order and put all the parts in a certain sequence - this will make assembly easier. Hands should be clean; you can wear thin vinyl gloves.

When replacing the battery, avoid contact with food. The battery must not be deformed or attempted to be disassembled. You also need to dispose of the used power source correctly - you can’t just throw it in the trash, you should use a special container.

Be sure to turn off the power and disconnect the headset. In order not to encounter surprises, before starting you need to carefully study the instructions in order to be prepared for what you will encounter. You must strictly follow all recommendations for actions and their order.

Trying to open a Xiaomi phone on your own is only possible as a last resort and if the user has a certain skill. You should always remember that cleaning or replacing modules that require disassembling Xiaomi devices is best done at a certified service center. This is a guarantee that all work will be performed by qualified specialists.

How to remove the cover on a Samsung J5 phone

Recently, developers of mobile phones from different brands have begun to create cases in which the back cover is simply missing. In fact, it exists, but it is not possible for ordinary users to open it without special tools. For example, the two components of the Samsung J5 case are glued together. And in order to unstick them, the body must be subject to heating at a temperature of 100 degrees. This requires a hot air gun

.
Warming up the case with a hot air gun
Before opening the case, be sure to remove the slots for the SIM card and flash drive.

The barrel of the hot air gun should be aimed at the back of the Samsung and its seams. Then you need to arm yourself with a plastic card or a plastic scalpel to pry off the front screen module.

Use a plastic card to line the seams of the case

The cover is not a thin plastic sheet, as in classic smartphones, but rather a recess in the form of a bath. You should be very careful when working along the seam of the phone with a card. Don't run it too deep. 0.5 cm is quite enough. Be careful not to disrupt important phone modules.

Use a plastic card to open the Samsung case

When the lid gives way, do not rush to open the case completely; do it with caution. After all, both parts exchange information using a wide cable that connects the screen module and the Samsung motherboard.

Screen module cable in Samsung

To disconnect the cable, you need to open the fastening cover and remove the cable from the socket. It's quite simple. The main thing is not to rush and be careful.

This may be useful: how to move photos, applications, data to a memory card on Samsung.

How to replace the touchscreen

Don't want to completely replace the display module with a lot of time? Then maybe it’s worth replacing just the screen? This operation is much easier, but we still recommend that you approach it responsibly and prepare in advance:

Remove the back cover , unscrew the bolts and take out the battery .
Now we take any hard, but not sharp object. This can be a plastic card or a thin spatula. We insert it into the housing mount and slightly pry it up.
The touchscreen fits tightly to the matrix, so you won’t be able to simply remove the protective adhesive. It needs to be warmed up. Regular hair dryer jets will do, or place the gadget on a hot radiator, making sure to wrap it in a towel.
As soon as the glue warms up, put the suction cup on the screen and very carefully pull it towards you. It is unlikely that the glass will be kept intact, so do not cut yourself.
Did you remove the old screen? Great, then we clean the case from the remaining glue and tape. Never wipe with a damp cloth! Cleaning with a regular spatula will do.
When the case is completely clean, attach the new touchscreen by applying a thin layer of glue to it. We press the glass against the body, but be careful so that it does not crack. Try to glue the screen as evenly as possible; to do this, remove any exposed glue.
We wait about 15-20 minutes for the touchscreen to fully grip, and we begin the standard assembly of the device. Ready.

Video instruction

How to disassemble Xiaomi Redmi 4x phone

Now let's move on directly to the parsing process.

Instructions:

Before any actions with your phone, be sure to turn it off.

The very first step is to remove the SIM card. This must be done using a special paper clip.

To unfasten the end screws connecting the two parts of the smartphone, insert a special spatula or, in extreme cases, a card from the display side a couple of millimeters inward, and then slide it along the entire perimeter of the screen. Hold the lid with the same cards, fingernails or other available means to prevent it from slamming back.

Next, carefully remove the back cover, being careful not to touch the fingerprint scanner.

Carefully remove the scanner using tweezers.
Now we turn off the sensor near the battery.

It is necessary to unscrew the top bolts from the cover with the antenna. Set them aside and don't lose them.

Unfasten the connecting parts next to the board. Also set the screws aside, separately from the previous ones.

We remove the battery. To do this, use tweezers to remove the adhesive layer on the sides. If it does not come out completely, warm up the smartphone, add isopropyl alcohol and pry off the battery with a plastic card. Then remove the remaining adhesive sheets.

And then we remove the green board, removing the antenna cable.

Next, you can extract the required components.

Ready. This concludes the analysis.

Please note that some components may be attached with cables, so if something cannot be removed, first unclip the cables from the connectors.

How to open the back panel on Samsung Galaxy S7 Edge

Let's look at an example of how specialists open the non-removable back covers on the Galaxy S7 Edge smartphone. It is much easier to do this when you have equipment special for this at hand. It resembles a regular vice, equipped with a large suction cup.

Device for opening the cover on a Samsung smartphone

It serves as a holding tool for the rear of the body. With this equipment you will not need a heat gun. Since it refers to methods that have a certain risk of breaking the Samsung with high temperature.

Procedure:

In the middle there is a niche for the phone. The body is placed between two rubber vise holders;
The lid of the device is closed and the suction cup is activated. It is attached to the back cover of a Samsung smartphone. The joints must be moistened with alcohol or an alcohol-containing solution; Attaching a suction cup to the back cover of a Samsung smartphone
The pressure regulator, which is located on the right, comes into play. When twisting it, the smartphone body is held in a rubber vice, and the suction cup “pulls” upward; Pressure regulator in the device
The regulator is hand-tightened, but not tightly tightened, since we are dealing with a fragile material. Every few minutes we tighten the regulator further. Open case of a Samsung smartphone

Ultimately, the glue between the parts of the case gives way and the device is disassembled into two main parts - the back cover and the Samsung mobile phone module. When the cover comes off the module, there is no need to immediately open the device. It is necessary to remove the suction cup from the body, after which you can open the machine.

Method number 1. Using your fingernail to remove the panel on your phone

The first way to remove the BQ phone cover is to do the following:

At the top end of your device, to the right of the micro-USB connector, there is a small notch;

Insert your nail into the indicated notch
Insert your fingernail into this recess and gently slowly move the nail to the left, thus separating the display glass and the plastic cover body;
If this does not work for you, then during the above movement, use your free hand to slightly squeeze the BQ smartphone on the sides. The plastic will bend a little and make it easier to detach the cover;
Next, we run our fingernail sequentially along the perimeter of the smartphone, disconnecting the panel. A positive litmus test will be a slight crackling sound when opened;
When you completely run your fingernail around the perimeter of the panel, all that remains is to disconnect it.

This is useful to know: what is Nearby in a phone.

How to disassemble Xiaomi Redmi 4x phone

One of the reasons for poor phone performance is mechanical problems. It is they who lead to the need to disassemble the device. There may also be a need to replace the display, battery or other parts. Fortunately, Xiaomi smartphones are very easy to disassemble, so in most cases you can do without contacting a service center. How to disassemble Xiaomi Redmi 4x - we will analyze it in this article.