It can often happen that the phone stops working and the battery was not discharged, so it is necessary to immediately correct the situation and figure it out , why this happened to your smartphone.
If you have problems with your Xiaomi smartphone, such as its involuntary shutdown or accidental freeze, the screen is off, it is important to try to understand the situation before contacting the service center. Here are some steps you can take to find out the cause and possibly fix the problem yourself:
If your smartphone has not been used or charged for a long time, the battery may be dead. Connect the device to the charger and give it some time to charge. If the device does not respond to charging, try using a different charger or cable.
Sometimes the problem can be related to a malfunction of the power button. Try pressing it a few times to make sure it clicks and releases correctly.
Hold the power button for a few seconds until the reboot screen appears. After the device restarts, try to turn it on again.
If your smartphone has an LED indicator, check if it blinks when connected to the charger. This may indicate a charging or battery issue.
If your device won't turn on normally, try entering recovery mode. To do this, hold down the power button and the volume up button at the same time until the recovery screen appears. From here, you can try performing a data reset or system restore.
If none of the above methods worked, the problem is probably more serious and requires professional intervention. Contact a Xiaomi service center to diagnose and repair your device.