What should I do if the screen is black all the time???

Euschool black screen.

Most of the cases that the machine cannot be turned on are caused by driver software conflicts, and you can try the following methods to solve the problem:

1. Press and hold the "Power Button" for seven seconds to force restart.

2. Press and hold the "Reset Button" for five seconds to force a factory reset.

3. If it still can't be solved, you need to carry out after-sales maintenance, and bring the invoice to the after-sales service for maintenance.

Gifted student tablet, designed for learning.

Euphoria. Superior School (3).

AI intelligent learning tutoring: the front-facing dual-camera intelligent eye designed for learning, pointing to the book and asking directly, pointing to **learning**, with a new AI gesture pointing function! [4]

Green and safe online classes: (1) Ten intelligent eye protection functions: the excellent student tablet selects blue light CPU, color temperature eye protection chip, distance sensor eye protection chip and light eye protection chip, as well as multiple eye protection functions such as jitter reminder and sitting posture recognition, so as to care for children's vision health in multiple dimensions.

2) Green parent management system: The U-school student tablet combines fingerprint recognition and home management system to realize parental fingerprint control; Remotely control the tablet at any time through the mobile phone, and understand the child's learning situation in real time. The Treasure House of Excellence provides a wealth of learning resources.

5] Famous Teacher Tutorial Class: The excellent school gathers the "Famous Teacher Dream Team", and you can attend the famous teacher tutoring class at home. Led by famous teachers from Tsinghua University and Peking University, online live interactive learning, offline learning anytime, anywhere, and one-on-one personalized and accurate learning.

Synchronous learning of nine subjects in primary and secondary schools: synchronous learning of nine homework, daily practice of 53 teaching aids, multi-** digital synchronous learning courseware, with 5.3 teaching aids, covering nine courses in primary and secondary schools and middle schools, systematic and efficient learning. [4]

AI companion learning robot: In the era of intelligence, it is an intelligent playmate for children, and the excellent school AI companion learning robot is not only a learning tablet, but also a robot.

Picture book reading: Tens of thousands of picture books in Chinese and English, read by professional Himalayan anchors.

Discipline enlightenment: Interesting learning of introductory knowledge of language, mathematics and English, entertaining and easy enlightenment.

Intelligent voice: Exclusive intelligent voice assistant for children, creating scientific content and accompanying children's growth.

Multiple eye protection: Multiple eye protection functions such as cute eye protection mode, chip-level blue light filter, and distance sensing can effectively protect children's eyesight. [6]

Smart education. With the support of the cloud learning system, it integrates four scenarios before, during, after, and outside the classroom to build a future-oriented smart education network learning space and a new era teaching ecosystem for teachers, parents, and managers.

Promote the personalized, scientific and intelligent development of education, and help the informatization of education.

Transformation and upgrading. [

Hello, you go to the official website to upgrade the package, copy the memory card, insert it into the excellent school, press and hold the power button and the plus key, and press the reset button after the upgrade is completed (there is a small hole under the charging port, poke it with a refill) and then turn it on, the process may be a little slow, be patient. No more looking for after-sales. (Note:.)

It may be a bit slow when upgrading) ok bye-bye.

Turn it off first, fully charge, and then wait a while before turning it on to see if it gets better. If it is not good, it is recommended to take it to the store for repair, because it may be hardware damage.

If the U-school keeps getting a black screen, you can try to reinstall the software. On top of that, you can also update your smartphone to the latest version.

Hello Qinxun's, the Youxue tablet has been black and the screen can't be opened, this situation is mostly caused by driver software conflicts, but it does not rule out the motherboard problem; It is recommended to check as follows: 1. Force restart, system upgrade, software upgrade, 2. If it is still the same, clean up the system junk of the mobile phone and check and kill viruses. 3. If you still restore the factory settings of your phone.

4. If it is still the same, re-flash the machine. 5. If it is still, most of them are motherboard problems. It is recommended to send it to the repair service station for repair First, the boot button fails The tablet is between a laptop and a mobile phone, and the only difference is on the keyboard, while the hardware function key of the tablet has only one, that is, the power on button (shutdown key).

When the tablet cannot be turned on normally, the last possible thing is caused by the failure of the boot button, such as contact oxidation, water ingress, etc., which will cause the boot button to be damaged. In this case, you can plug in the charging data cable, if the charging prompt light is on, then it can be basically determined that it is a problem with the boot button, send it to the after-sales service for re-testing, and replace it directly. Second, the battery failure of most tablet computers use lithium batteries, and lithium batteries have a service life, long-term do not use the tablet, the lithium battery will slowly release the power, when the power is low to a certain extent, the tablet can not be turned on normally.

If the tablet has been left for a while before, has not been used recently, and does not turn on normally when used again, then it is almost 100% certain that it is caused by the low battery of the TV. In this case, don't panic, directly connect the charging cable with the tablet, and the charging indicator lights up, which means that the tablet can be charged normally, and when the storage capacity in the battery increases, the tablet can be turned on normally. Third, the line fault is actually no different from the tablet and the mobile phone, but the screen is scattered a little, and some tablet computers with low configuration are not even as high as the mobile phone configuration.

And this means that the reason why the phone cannot be turned on will also appear on the tablet, and the most common problem is the loose cable. Before the tablet could not be turned on, the tablet computer was injured or bumped, which can basically be determined to be the cause of the loose cable, but other faults are not ruled out, but it can be determined that Tongheng is related to the fall.

Summary. Workaround:

Flash,Go to the official website to upgrade the package,Copy the memory card,Insert it into the U-school,Press and hold the power button and the plus key,Press the reset button after the upgrade is completed (there is a small hole under the charging port,Poke it with a refill) and then turn it on,Maybe the process is a little slow,Be patient。 No more looking for after-sales. (Note:.)

May be a bit slow when upgrading) OK.

The aging of the battery, the insufficient voltage, and the loosening of the contact of the screen will directly lead to a black screen, which is generally caused by a drop.

The Youxue tablet has been black and can't be opened.

If there are a lot of applications installed, some software conflicts, this can also lead to a black screen, so installing a lot of software will lead to a black screen.

Under normal circumstances, when there are too many stored things, you can feel that the tablet is running too slowly, and when 80% of the memory that can be driven by the tablet is occupied, it may crash in the hall, and it will also produce a black screen.

Solution: Flash the machine, He Xian goes to the official website to upgrade the package, copy the memory card, insert it into the excellent school, press and hold the power button and the plus key, and press the reset button after the upgrade (there is a small hole under the charging port, poke it with a refill) and then turn it on, the process may be a little slow, be patient. No more looking for after-sales.

Note: It may be a bit slow when upgrading) OK. The aging of the battery, the insufficient voltage, and the loosening of the contact of the screen will directly lead to a black screen, which is generally caused by a drop.