Nowadays, the usage rate of tablet computers is not much different from that of laptop computers. More and more people like to use tablet computers to watch videos, play games, read novels, etc. At the same time, tablet computers are also easy to carry and more convenient to move. Tablet computers, like other electronic products, can only be used normally after being charged. If the tablet computer is not charged, it will automatically shut down after the battery is exhausted. Some people's tablets cannot be charged, so what's wrong with the tablets not being charged?
What's going on when the tablet can't be charged?
It may be a poor contact, which refers to the contact port inside the tablet. You can first connect it to the UDB interface of the computer. If the computer has a display, you can only go to the manufacturer for repair. If there is no response, it is broken. Suggestions To confirm whether the tablet battery is charged, you can connect it to the original charger to charge for about 1 hour, and then try to turn it on;
To confirm whether the tablet is in sleep mode, you can short press the power button to see if there is any display on the screen;< /p>
Confirm whether the tablet computer is in a crashed state. You can connect the original charger, and then use a fine needle to gently poke the reset button to see if there is a display on the screen;
It may be caused by firmware damage. Connect the tablet to the computer and see if the computer can recognize it. If it can, please download the firmware of the corresponding model and re-flash the phone according to the flashing tutorial included in the firmware package.
If the computer cannot recognize it, there is no way to handle it yourself. Please contact the place where you purchased the machine for repair.
Tablet charging process
Plug one end of the charger plug into a 220V AC socket, and use an Apple-specific plug on the other end. Connect the data cable to the iPhone/iPad. The 220V alternating current first passes through the rectifier circuit and becomes high-voltage direct current, and then passes through theTurning off the tube turns into high-frequency and high-voltage pulses, which are then converted into low-voltage (such as 5V) pulses through the transformer. The 5V low-voltage pulse goes through a rectifier and voltage stabilizing circuit and becomes 5V stable DC power. In the entire process of changing from 220V AC to 5V DC, the transformer, rectifier circuit, and voltage stabilizing circuit only play a role in changing the form of electrical energy (from high-voltage AC to low-voltage DC).
When it comes to charging, only the charger can't be slapped. If the 5V output end of the voltage stabilizing circuit (USB interface) is not connected to the iPad or iPhone (called a load in terminology), no current will flow and no power will be consumed. After the load is connected, the charger starts to work. The current flowing through the charger depends on the status of the load: as long as it is within its capabilities and the load requires as much current, the charger will provide as much current. If the current required by the load exceeds the upper limit of the current that the charger can provide, the charger will always output the maximum current. This is because a protection circuit is usually designed inside the charger. Once the output current is too large, the protection mechanism will be triggered and the current output will be suspended.
What's wrong if the tablet cannot be charged? The tablet is in good condition in all aspects. If it still cannot be charged, it means it is a tablet. There is an internal problem, and different brands of tablet computers have different causes of failure. In order to solve the problem of their inability to charge as quickly as possible, you should take the tablet to a regular after-sales center and ask professional staff to take care of it. Check it out. Generally speaking, tablet computers do not often have problems with charging, so you can rest assured.