There are various reasons due to which the phone is charged only when it is turned off. And this is a problem, because a modern gadget requires a large supply of battery, consumes a lot of energy, and sometimes you have to charge it during use, watching a movie, playing a game, etc. It is extremely inconvenient to do this only when it is turned off, because in this way the device is most of the time banally unavailable.
Anyway, it’s unusual to charge the phone only when it’s turned off. But it is worth noting that for some models of tablets and smartphones this is the norm that is provided for by the developer. Although this is stupid, it is. But most often, if a Meizu phone is charged only in the off state (this applies to other brands, but people often use Meizu smartphones on forums), then this is a software or hardware problem. Let's figure out why this happens.
The phone only charges when turned off due to firmware
The very first and most common version is firmware. This is especially common in Chinese smartphones: ZTE, Meizu, Xiaomi, etc. These phones are sold based on the Chinese shell, and there is no native crack for it. Therefore, users often install third-party software - unofficial firmware.
It is logical that such firmware, developed by amateur programmers and installed by the user without such skills, can slow down. Moreover, the problems can be very diverse: a weak range of brightness control, strong heating during passive operation, fast battery discharge, conflict with the charger. It is worth noting that precisely because of poor firmware and software problems, something similar most often happens. This can also be connected with the hardware, but very rarely.
You can fix the firmware problem. To do this, you just need to return to the official version. The phones have the corresponding functionality. If not, a service center will help. But you can even try to install a new unofficial firmware, which, judging by the reviews, works well and does not fail. It is possible that it is your current global firmware that works poorly and causes a conflict between the charger and the gadget itself. In this case, one should not be surprised why the phone is charged only in the off state.
Bad power supply or battery
It is logical to look for a reason in the power supply - it can also become a cause. Checking if the power supply is working properly is easy. To do this, try using it to charge another tablet or smartphone. If everything is successful, then the problem is not in the power supply. You can also try to charge the problem smartphone using a laptop or computer by connecting it via USB. If the charging process is activated when the phone is on, then you should look for a problem in the power supply.
There is also another rare reason - weak voltage in the network. If it falls below 220 V, then some phones and tablets may not charge when turned on. Sometimes the power supply is so weak that it simply does not have time to resume the charge of the phone when it is working. This applies to third-party universal chargers, so the best thing is to charge the phone with "native" devices.
It is possible that the problem may be in the battery itself. To check it, you need to find the same one and try to charge the phone with it. If it works out, then the problem is clearly in the battery, which means it needs to be changed.
Contact oxidation or contamination
Contacts can also be the reason why the phone is charged only in the off state. We recommend running alcohol-laden cotton wool on the contacts on the phone and charger. It may be in them. Unfortunately, this method helps very rarely, but there is always hope.
Other problems
Sometimes it’s impossible to find out why the phone is charging only when it is turned off. Even experts can not always give an answer. Reasons can be anywhere. For example, a microcrack could occur in the power circuit during a fall. Also inside the cable, some kind of microcracking could occur. It is impossible to determine all this at home, and sometimes it does not work out even in workshops.
But if you can’t solve the charging problem , then don’t be upset. By itself, it is insignificant. The main thing is that the smartphone works fine and performs its functions. Anyway, most users put their phones on charge only in the evening, when they go to bed themselves. And to charge it during the day there is no special need. So sometimes you just need to come to terms and not pay attention to such trifles.
Which phones are at risk?
This problem is not uncommon. Many users have such situations. Chinese cheap smartphones more often than others work in this way. However, on the forums you can find messages that Russian Explay phones are charged only in the off state, but this does not apply to the entire line of the manufacturer and not even all models. It just happens, and not only with cheap Chinese state employees, but also with expensive flagships.