What should I do if the MS 621 L is flooded?

1. Open the ventilated openings on the fuselage as much as possible to allow water to evaporate.

2. Find a heating plane, such as the top of an open TV, put the mp4 on it, and let it slowly heat up and evaporate the water. You can also find an electric heater in winter and put the mp4 close to the heater, but be careful not to get too close and cause the temperature to be too high.

3. Remember to make the opening position upwards to facilitate water evaporation.

4. Keep the mp4 at 50 degrees, which is the state of feeling warm or slightly warmed to the touch. Pay attention not to turn on the machine when the moisture is not dry, so as to avoid short circuit.

Note: If you still can't turn it on, you need to contact after-sales service to solve it.

After the water enters, the first thing should be to use a hair dryer, blow drying, and then see if there are any foreign objects on the pins of each chip, which may cause a short circuit, clean it up, and then try to turn on the machine to see if there is a problem. If you turn it on without drying it, it will cause the original to burn out.

Or wash and brush it again with alcohol, dry it with a hair dryer, and then carry out the following repairs, according to your description, the main control chip is most likely to break. Install the firmware upgrade software, connect the machine to the computer, short the flash pin D17-D19, see if there is a connection reaction, if so, the main control may not be broken, after flashing the machine again, connect the computer to see if it is normal, if it is normal but the screen does not respond, it means that there is a problem with the display circuit. In short, the problem is more serious.

I have experience with this! What kind of electricity do you use? For example, it used to be the U port of the computer to charge, and suddenly changed to power charging, and such an error will appear!

Problems like this are caused by the charging power supply being too high or too low! The solution is not to connect to the computer first, put the power on until you can't get up, and then connect to the computer is no problem.

Mine too, black screen. Sent to the maintenance department said that it was infected with the virus.

I also encountered it a few days ago, there is no way, send it for repair, this is the product of Unisplendour, I am ready to change it now, garbage product.

Before, it could be turned on when charging, but then it couldn't be turned on, and it couldn't show charging, ask for advice!

The audio output device is not set up properly; Is the song file on the Internet not standardized? The headphones are broken; The system of memory formatting is incorrect Please turn up the volume Solution: Please go to the main menu Settings Speaker selection headphones or speakers, please **standard***format**.