• My phone won't turn on, what should I do? Xiaomi does not turn on - Typical reasons for failure, what to do and what to do? Xiaomi does not turn on after purchase

    While using a Xiaomi smartphone, a rather unpleasant and, at first glance, incomprehensible situation can happen - the phone turns off and does not turn on. What ways could there be to solve this problem and what might it even be?

    Of course, problems for each individual smartphone can be completely different and their occurrence is influenced by various factors, but we will look at the most common ones.

    Problem #1. Deep discharge

    A fairly common problem is that the Xiaomi smartphone does not turn on and the red LED is blinking. This may indicate that the battery is completely discharged. In this case, the smartphone does not have enough energy to start the system, and therefore pressing the power button does not lead to the desired result.

    Solution: put the smartphone on charge and only after some time (one hour) try to turn it on by long pressing the power button (10 seconds)

    But there may be a problem here too - a damaged charging cable. Try connecting another smartphone or any other device to it and see if it charges. Replace the cable if necessary.

    This also includes a problem with a broken USB port on a smartphone, which will require replacement at a service center.

    Problem #2. System hangs

    The second common problem is a system glitch that turns off the smartphone and prevents it from turning on normally.

    Solution: For smartphones with a removable back cover, you can try to remove the battery and reinsert it into the smartphone, and then try to turn it on. For most, which have non-removable covers, there is another method - long press the power button for up to 10 seconds. This will perform a deep reboot and there is a possibility that the smartphone will be able to turn on.

    This is described in more detail in the article:

    Problem #3. Broken power button and other mechanical damage

    There are situations when the inability to turn on a smartphone is due precisely to mechanical damage that occurred when the device was dropped or as a result of a manufacturing defect.

    In this case, you will most likely need to contact a service center to troubleshoot and fix it.

    This may also be due to a malfunction of the power controller, when the smartphone does not turn on or charge. To check this, you need to insert a known charged battery into your smartphone and try to turn it on.

    Problem #4. Firmware failure

    Very often you may encounter a problem when the screen lights up, but the smartphone does not boot. This is due to a glitch in the firmware. To resolve this issue, you will need to reinstall the software. One way could be to use the Mi Flash application.

    Why won't Xiaomi turn on?

    Xiaomi smartphone does not turn on? We will try to highlight several possible causes of the problem. They are relevant if:

    • When the charger is connected, the phone does not respond;
    • when trying to charge the battery, a short intermittent vibration appears;
    • When you press the Power button, the light sometimes blinks.

    Xiaomi does not turn on after purchase

    If you purchase from an online store or purchase a smartphone anywhere else, a problem may arise when the device does not respond to either the charger cable or the Power button. Of course, this happens if you don’t check the device’s functionality before purchasing.

    What is the reason for this behavior? It's simple - adhesive tape is glued to the battery terminal, which prevents contact. Since the phone has not been checked or opened, you just need to remove the back cover and peel off the tape from the contacts.

    This problem only occurs on phones on which the back cover can be removed without problems. If the device is monolithic, then the problem is not the Velcro on the battery.

    Xiaomi turned off and won't turn on

    The following problem may occur due to a defect in the manufacturer's version of MIUI 8.1. In this case, it happens that the phone simply turns off without any preliminary signals at a normal battery level. After this, it is unable to respond either to connecting the charger or to the Power button.

    To turn on a frozen smartphone again, you will need:

    • Press and hold the power and volume down button. This will trigger the transition to Fast Boot mode;
    • Hold until the picture appears. An image will appear with a hare poking around in the android. This is firmware mode. From there you can reboot the device;
    • In order for the phone to reboot, after turning on this mode, you need to hold down the Power button for 15 seconds (or more) until the Xiaomi logo appears. Thanks to this, it will take a long time to reboot, but then it will start working.

    After turning on in this way, Xiaomi may freeze again and not turn on. Unfortunately, this is a bug in the MIUI 8.1 global firmware, and until the developers release an update, the problem will persist. As a last resort, you can change the firmware at the service center to an unofficial one, but this will automatically void the warranty on the phone.

    Other ways to enable Xiaomi

    If all else fails, perhaps the problem is not a faulty firmware or a film that has not been removed from the battery. And you will have to take the device to a service center. But before that, you can check a few more methods that will at least temporarily bring your smartphone back to life:

    • Before trying to turn on Xiaomi via Fastboot, connect it to the computer with a cable;
    • Leave the phone to charge for 12 hours, try to turn it on, and then insert the charger again for 5 minutes;
    • Just hold the Power button for more than 30-45 seconds. It will save you if the phone freezes during the reboot process.

    Some of these methods may help when other options fail. But this is unlikely and does not work for all Xiaomi models.

    Even the currently popular Xiaomi company, which is famous for its good quality products for fairly little money, has problems servicing some models.

    One of these is that Xiaomi Redmi 3S does not turn on and there can be many reasons for this. Banal, but oddly enough the most common options would be:

    • Moisture ingress. This can happen either after rain or an unsuccessful jump into the pool, but the results of such actions are oxidation, and possibly serious damage to the motherboard;
    • Battery- an integral part of the device, but quite often causing many problems, because even without much external influence it can deteriorate, fail at the most crucial moment and run out of charge;
      • - the problem is not simple, it requires consideration or even repair work, but preferably by the hands of a professional;
    • Deformation- the most common type. Everything is outrageously simple: dropped, chipped, and not only the outer shell was damaged, but also the internal parts of the smartphone;
    • Firmware- replacing, updating or rebooting such an element will not be an easy issue, but it can be solved at home.

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    What to do if Xiaomi Redmi 3C turns off

    Major smartphone failures that will lead to the smartphone turning off or, conversely, not turning on, need to be predicted and preventive maintenance carried out. But even if the situation occurs, we do not panic, but perform a number of actions:

    • We pull out the cards - we anticipate the risk factor, including for them;
    • Open the back cover, check the battery and visible parts of the device for various types of deformation;
    • We take out the battery, inspect the element in detail and check its functionality;
    • We check internal parts - identify external defects and/or deviations from the norm;
    • We replace the damaged part if this does not require additional knowledge. Otherwise, we turn to a specialist in this field.

    A similar plan of action is suitable for mechanical damage that is easy to identify for the average person.

    Problems after updating the firmware on the device

    The situation is much more complicated when the Xiaomi phone does not turn on due to an internal failure. Firmware is a hated word for every user. All procedures associated with it (updating, reinstalling, replacing) are quite complex and require a certain skill.

    If it is not so difficult to reflash a Redmi smartphone that is turned on, then its turned off version causes some difficulties. But there is a way out. To do this you need to follow a certain algorithm:

    • Download the required firmware file from the official website to be sure of the safety and quality of the product (Stable ROM) - http://en.miui.com/download-303.html;
    • Connect your phone to your computer and select the connection in “file transfer” mode;
    • Move the file to the system folders of the device itself;
    • We launch this file on the device to begin the installation process.

    After a series of these steps, your gadget will work using the capabilities of the new shell. But this option is final, when there is no longer any hope that the system is simply slowing down and there is confidence that the whole issue is in the Xiaomi Redmi 3C firmware.

    Other problems and solutions

    If there are no such guarantees, then why not do a banal reboot of the gadget. Perhaps the smartphone simply could not cope with the number and complexity of the tasks assigned, and a reboot will correct such issues. To do this, you should hold down the unlock (turn on) button of the device for 10 seconds or more.

    Also, other problematic situations may arise with the Redmi 3S hardware:

    • Does not turn on and does not respond at all to any user actions;
    • Disabled, but the red indicator is on (flashing);
    • Freezes at a certain stage of loading.

    You cannot solve such problems with your own efforts. There is an option to reboot the device by holding the button for 10-60 seconds, but no one can guarantee that this will help. A hard reset (to factory settings) feature may also be useful. This will ensure the operation of the smartphone, but at the same time will not leave anything in its memory. In all other cases, it is best to contact the appropriate service.

    As a result, we can say that the problem with Redmi not turning on can be solved either through your own efforts or by going to a service center. The only difference is the scale and cause of such a breakdown.

    Xiaomi electric scooters are distinguished by high build quality and excellent technical characteristics. Most models, provided they are used correctly, function without any problems for 5 years or more. However, in some cases, riders may encounter a problem when the Xiaomi electric scooter does not turn on or does not charge.

    The article contains the most common problems that make it impossible to turn on the device and replenish the battery charge.

    Device diagnostics

    First of all, you need to reboot the controller, in 50% of cases this eliminates the problem. If this solution does not help, then for further self-diagnosis you will need to use a voltmeter.

    Conventionally, the internal filling of the unit can be divided into 4 parts:

    • Control unit;
    • Controller;
    • Battery protection board (BMS – Battery Monitoring System);
    • Rechargeable battery.

    Initially, the voltage at point “A” is measured. If it is normal, then the problem must be looked for in the controller or control unit. If the readings are below normal, this means there is a problem with the battery or BMS board.

    The contacts on the battery are coming off

    A clear sign of poor-quality contact connections is the behavior of the LEDs when the product is turned on. If they all light up at once, then begin to go out one by one, and then the cycle repeats, you need to check that the contacts are connected correctly.

    To carry out independent repairs, the following operations are required:


    You can understand the success of the operation by the color of the LED, which should change from red to blue.

    Reboot the system

    To fix the problem you need to:

    • Disconnect the “charger” and also disconnect the power cable connecting the battery and the controller;
    • Reconnect the charger, after which the battery should start blinking red, and when the “charging” is disconnected, the color will change to blue;
    • Reconnect the power cable;
    • Turn on the product. You need to wait until all the LEDs blink, the battery starts blinking at shorter intervals, and the red signal on the controller lights up;
    • Connect the charger, after which the LED on it should turn red, and the LED on the battery should start blinking red.



    Carrying out this procedure allows you to reset errors in the system and return it to its original operating state.

    Damage to battery cables

    They should be checked only after diagnosing the contacts and rebooting the system. To assess the level of damage to the wires, you need to completely remove the battery and compartment and carefully check all bundles of cables one by one for damage.



    If they are detected, the set of wires must be replaced.

    Thermal sensor or fuse has burned out

    Before changing the element, you need to make sure that the battery and controller are working properly, for which the output voltage is measured. If everything is in order, the BMS board must be removed to gain access to the fuse.

    It is checked using a multimeter. The normal value is 0 or close to zero. If the device outputs one, then the sensor is faulty.



    To solve the problem, just install a new element. When removing it, the main thing is not to damage the connecting contacts.

    Instructions: If you encounter a problem where Xiaomi Mi4, Mi4c does not turn on, there are several reasons for the breakdown:

    1. Try rebooting it.
    2. The device may not turn on if the battery is faulty. The technicians will replace the battery to restore the device.
    3. If the equipment is discharged and does not work, we will check to see if the connector is broken. If the part is damaged, we will replace it.
    4. After a shock or voltage surge, the power controller may fail. To repair the device, the controller must be replaced.
    5. When the device does not respond to charging, the connector is working properly, but does not turn on, the board or harness may be damaged. As a rule, this occurs as a result of liquid entering the device. To determine the cause of the breakdown, computer diagnostics is needed.

    Bottom line: You can try to fix the device yourself in the first 3 cases. All other damage can only be repaired by specialists.

    Repairs at our Telemama service center

    DIY repair

    Our advantages

    1. Spare parts. All our components are original.
    2. Price. Prices for spare parts are minimal, since we purchase goods in large quantities.
    3. Repair time. You can change your speaker, display, connector, etc. within 20 minutes. When the problem is complex, diagnostics are performed, which lasts from 20 minutes.
    4. Guarantee. Up to one year warranty card is provided.

    If the equipment stops turning on after a strong blow, Telemama specialists will help you repair the device. To deliver the device, call a courier or bring the device to us yourself. We will resolve any problem as quickly as possible.

    You have the opportunity to undergo diagnostics in our service. After agreeing on the list of work and the cost of repairs with the owner of the gadget, the craftsmen will begin the repair. We will determine why the phone does not turn on and fix the problem quickly. As a result, we will issue a long-term guarantee.

    You can pick up the repaired smartphone from our service center yourself. A courier can bring the device to your home with a warranty card for up to one year. To make repairing your gadget cheaper in the future, we provide a discount. Your friends can also get a discount if they call out their order number.

    For many years, specialists from our service center have been selling original parts and professionally repairing equipment. We advise everyone who wants to repair it themselves. You can find out the current prices on our website in the price list. You have the opportunity to buy the required part and install it yourself at Telemama immediately after completing the diagnostics. Our low prices are valid every day, and there is no need to wait for discounts for regular customers. We carry out new Promotions all the time so that you can restore the device at cost and receive a warranty certificate for up to one year.

    
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