Samsung 2018 mobile phone call no display screen black screen how to solve the problem

If the screen color of the mobile phone is abnormal, such as black screen, splash screen, flower screen, white screen, red screen, etc., it is recommended to:

1.Click the back button to see if you can exit the software. If you can, exit and re-enter.

2.If you can't quit the software, it is recommended to restart your phone and try: press and hold the power button and the down volume button at the same time for more than 7 seconds to restart the device;

4.If it comes with system software, it is recommended to update the system version of the mobile phone to try: please go to Settings - About the phone (about the device) - Software update (system update) - Update (please back up the data in the device before upgrading).

If the problem persists, it is recommended to bring the purchase invoice, warranty card and mobile phone to the local mobile phone purchase office for repair or to a nearby mobile phone repair shop for repair.

If you are a Samsung mobile phone, and your software always shows a black screen, it may be that there may be a certain lack of memory in your settings, or that your phone has too much in the background, you can try to restart it and give it a try, if not, then you may need to contact the after-sales service and let them solve it.

If the screen keeps black: Press and hold the power button for more than 10 seconds, and try to turn the device on or off again. If the fault persists, it is recommended to send the phone to the nearest service center for testing.

Its products

Its subsidiaries include: Samsung Electronics, Samsung SDI, Samsung SDS, Samsung Electro-Mechanics, Samsung Heavy Industries and Samsung Life.

Samsung's main products in China include: Samsung mobile phones, TVs, digital audio-visual, computer office and BSV LCD splicing screens.

ElectronicsSamsung Electronics: The main business is consumer electronics, DRAM and NAND Flash, with a nine-year turnover of about 99.7 trillion won.

Samsung SDI: Mainly produces solar cells, fuel cells, energy storage, etc. In 2008, the company had a turnover of approximately KRW 5,302.8 billion.

Samsung SDS: The main business is IT phase glass substrates, plasma filters, picture tubes, and glass.

Samsung Aviation: The main business is the production of Samsung Bell 427, providing services for the products of Bell, Boeing and other companies.

Samsung Semiconductor: The main business is the production of SD cards, the world's largest memory chip manufacturer.

Machinery Samsung Heavy Industries: The main business is shipbuilding. In 2008, the turnover was 10,664.4 billion won.

Samsung Engineering: The main business is the manufacture of electronic parts and equipment, military aircraft parts and components (duplicating the electronics field).

Samsung Dow, whose main business is the manufacture of plastics, chemical products, and petroleum products.

Samsung Petrochemical: The main business is PTA.

Samsung Fine Chemicals: The main business is the manufacture of electronic chemical materials and fine chemicals.

Samsung BP Chemical: The main business is the manufacture of nitric acid, H2, and VAM, with a turnover of 343.3 billion won in 2008.

This can only be repaired, there is no other way, unless you change your phone.

Solved, mine is Samsung S8This time is also a black screen. You can try to repeatedly press the hidden home button and power button under the screen, and just wait patiently.

Reasons for the black screen of the phone:

If the phone is just a black screen, it means that there is something wrong with your phone's software system, it may be that the phone is poisoned, just go to customer service and brush the phone. It may also be that the motherboard or system is broken and needs to be repaired at a specialty store. However, if the motherboard is broken, it is recommended to replace it with a new one, because it is unlikely to be repaired.

There is also a software conflict that causes a black screen, which can be said to be one of the reasons for the most black screens.

Sometimes it will also lead to a black screen when the operation software is too fast, such as when the operation software is too fast when frequently testing and installing various software; Or the software switching between each other may cause a black screen, etc.

When the screen does not turn on or the screen does not display when a phone call comes in, please follow the steps below:

1.Restart your phone and try it.

2.Settings - (More) - Application Manager - All - [Phone] - Clear Data Attempt 3Please uninstall the recently installed third-party software, restart your phone and try 4Back up your data and try to do a factory reset.

If the problem persists, it is recommended that you bring the purchase invoice, repair card and mobile phone to the local Samsung service center for professional engineers to help you test.

Depending on the situation you described, you can try the following:

1.Try to turn it on for a while with a cable charger, or replace a phone battery of the same model.

2.Take out the SIM card and SD card at the same time and try to power on again.

3.When you see the "Samsung" logo icon when you turn on the new device, press and hold the [Menu Key] (Left Touch Sensitive Button) until the word "Safe Mode" appears in the lower left corner of the screen, then let go, back up data (such as: contacts, text messages, **, etc.), and restore factory settings.

4.If you can't enter the safe mode or the problem persists after operation, it is recommended that you bring the mobile phone three packs certificate and send the mobile phone to the nearest Samsung service center for testing and maintenance

You are experiencing a black screen during a call, it is recommended that you:

1.If you block the proximity sensor during your chat, the screen will turn off if you put it close to your ear. If you need to turn off this function, please tap the phone - the menu button in the lower left corner - call settings - uncheck the turn off screen during a call.

2.Try pressing the power button or home button, if the screen will light up, please restart your phone and call Paibi again.

3.If the call screen still appears black after restarting, it is recommended that you back up your important data and then restore your phone to factory settings (Settings - Reset Privacy - Factory Reset).

4.If the problem persists according to the above methods, please bring the purchase invoice, Baozen repair card and the machine to the Samsung service center, and the engineer will check the machine and deal with it.

Normal. If there is an error in the system, it will be normal to shut down and restart.

Due to the limitations of the network platform, it is impossible to view the specific situation of the mobile phone, it is recommended that you bring the purchase invoice and the three-guarantee certificate to send the mobile phone to your nearest after-sales service center, so that the engineer can help you test it.

You can do the following:

1.Turn the computer back on and off.

2.Observe after uninstalling recently installed third-party software.

3.Back up your phone's data (book, SMS, multiple files, etc.) and restore factory settings.

If the problem persists, it is recommended to send the phone to the nearest service center for testing and further processing.

It is recommended to try it as follows:

1.Check that the distance sensor at the top of the screen is not blocked, dusty, or foreign objects.

2.Check whether third-party software is installed on your phone (such as management software such as Phone Manager) and delete such software.

3.Back up your phone data (**book, text messages, **, etc.), factory reset your phone.

If the above methods still do not solve the problem, please send the machine to a Samsung service center for an engineer to inspect and dispose of the machine.

2000W pixel rear camera, 6G

RAM, 800W front camera, 128G

ROM, can be replaced with 4000mAh battery 32-core processor, 7-inch 4ksuperamoled

fullfull

HD screen.

Dear Samsung Bai

Hello users: Comments, suggestions, complaints, please click:

According to your description, in this case, the actual BAI machine cannot be detected by the network itself. In order to understand and solve the problems of your mobile device, it is recommended that you send your mobile phone to the nearest Samsung service center for testing, and the service center will determine the specific problems and accessories of your mobile phone according to the test results.