Why the tablet does not turn on: the battery

Every year, the world market offers an increasing range of electronic computing devices. Progress in the field of microelectronics makes it possible to create all new devices, to provide them with additional capabilities. Obsolete models are removed from production, and their warehouse balances are sold at bargain prices. Thanks to this, not only very well-off people can afford to touch electronic novelties, but also townspeople with medium and even low financial incomes. For example, to purchase a budget Acer tablet you need no more than $ 150. Now no one is surprised by a person reading a book in the cabin of an electric train on the screen of a tablet computer running on the Android system. However, as it often happens, sometimes it does not do without troubles, and many owners of electronic portable assistants ask the question: "Why does not the tablet turn on?". The reasons for this behavior of the device can be very different, so do not panic or, even worse, immediately go to the store for a new purchase. First of all, it is necessary to narrow the "circle of suspects": perhaps, the defect can be eliminated on its own.

On a starvation ration ...

One of the reasons why the tablet does not turn on, is the problems with the internal power source - the battery. Despite the fact that this is quite obvious, the lion's share of calls to service centers is due to just such a malfunction. Problems with the battery can be divided into three groups:

- violation of mechanical contact;

- discharge below a certain threshold;

Internal faults.

The list is given in order of increasing complexity of the repair: if the first item is handled even by a student of lower grades, then for the latter it will be necessary to contact the service center. So, why does not the tablet turn on? Most smartphones and tablet computers transfer energy from the battery to the internal circuits of the device via spring-loaded copper contacts. The reliability of this solution depends heavily on vibration: the more often the tablet is shaken, the higher the probability that the contact will be broken and further work will be impossible. So, lovers of running around in the morning, holding a tablet in their hands or pocket, risk that on returning home the device will be turned off. Regardless of whether it's a Chinese counterfeit or a proprietary Acer tablet. To restore functionality, remove the battery and reconnect it. It may be necessary to slightly bend the contacts, increasing the size of their protrusion. It is also recommended to clean the contacts from oxidation marks with sandpaper ("zero").

Why does not the tablet turn on, if everything is normal with the contacts? Most often, this problem is encountered when buying online. Usually, sellers do not charge the battery before shipping. As a result, there are situations when the goods come to the owner with an excessively discharged power source. The inclusion of a charger is meaningless: if the battery voltage falls below a certain value, the internal controller considers it to be faulty and blocks the charging current. In this case, the task is to slightly raise the level. To do this, you need to carefully connect the battery to the terminals of the charger, without mixing the polarity, and wait a bit. Then insert into the plate and charge in the usual way.

The current fed to the battery passes through a series of electronic components. In expensive models not only simple start and end control is performed, but also intelligent current control. All these tasks are assigned to the controller. A person unfamiliar with electronics is unlikely to be able to eliminate his breakdown.