What to do with the n70 white screen, how to solve the N707 black screen

The possible causes of the white screen are: there is a problem with the software (the software does not have a driver screen); The original battery is not used; The FPC does not match the motherboard or display; There is a problem with the motherboard, etc. First check whether the battery belongs to the original battery; If so, check if there is a problem with the software; If not, then check whether the channel of the inline seat is normal, you can use a multimeter to detect the resistance value of the inline seat, if you find that there is no resistance value in the second row of pins, then use the multimeter to check the relevant components of the seat end of the inline seat along the road.

In the actual maintenance, this fault exists due to the damage of the protection tube that communicates with the pin of the inline seat, and the protection tube can be replaced.

The first team of electronic digital classification [Smart Machine Player Alliance] will sincerely answer for you!

If you still have any questions, you can post on the official post bar of our group, "Smart Machine Player Alliance".

My 72 used to be not only white but also blurred....I struggled with that problem for almost three months before I found the root of it...Every time I go to customer service, he asks me to change the screen, and the screen is still the same after changing two screens....My phone is connected to the Internet, and you play ** on the screen, and then the screen is white. Later, I found out that the display module on the motherboard was broken... Tell you how....The white screen of your mobile phone can still be called**, which means that the motherboard of your mobile phone is fine....Nokia's screen quality is generally good, and the possibility of a bad screen is very small.

The white screen is generally broken by two very small display modules on the motherboard, it is recommended that you go to customer service, and directly tell them to replace the two display modules on the mobile phone, it should be no problem...**Relatively cheap, it is said that that part is available on many Nokia machines, and it is very common. Hope my experience can help you...You can go fix it first and then give me points...Good luck....

Poisoned it,Smart phones are easy to white screen,Poisoned often white screen will crash,Put the machine hard off and then check off the memory card should be no problem,In the future** be careful about things,Or**antivirus,The mobile phone screen hardware upstairs is broken,I don't agree with those,Because Nokia is of good quality,What's more, yours is a straight board not a slider or a rotation,The straight board is resistant to falling,The hardware is not so easy to break, The case of bad hardware is that it doesn't work as soon as it is turned on or the screen doesn't even have a display, and your situation is definitely poisoning, I dare to vouch for it.

Brother, I'm sorry to tell you, the problem is that the screen is broken. If you don't have the warranty period, you can get customer service, after the warranty period, only to repair, I changed the screen, the domestic 80, the original expensive, I used the old original, it cost 70.

Brush the machine once at the maintenance point, and basically solve it.

Welcome to the Samsung Digital Service Platform to ask questions.

I hope the above is helpful to you and I wish you a happy life!

Licensed goods are sent to customer service for testing, and the water is looking for sellers.

1. Unzip the A25 version and the D image, then copy the file to the TF card, and insert the TF card into the machine;

2. In the shutdown state, press and hold the [Volume +] button, then turn on the device until the robot appears on the interface, and then release your hand;

3. In the robot interface, press and hold the [Power Button] and then press the [Volume +] button again to enter the upgrade interface;

4. Press the volume + and - keys to select [Item 3], and then press [Power Button] to confirm and upgrade from the TF card.

5. After the update is completed, the screen will display "reboot system now", and then press the [Power Button] to restart, and the upgrade is completed.

If this is still the case after the upgrade, it is recommended to contact the dealer or Haojixing after-sales maintenance.

Hello dear Samsung users:

According to your description: black screen has many causes, system issues, such as mold software conflicts. If the screen is damaged, it will be illuminated as a black screen.

We recommend that you try the following:

One. If it's a black screen all the time:

You can remove the battery and press the power button again to turn it on. If the problem persists, it is recommended to send the phone to the nearest Samsung service center for testing.

Two. If it is sometimes a black screen:

1.It is recommended to uninstall the third-party plug-in program that operated before the black screen.

2.Back up your phone's data (**book, SMS, multi** files, etc.), restore factory settings (settings-reset-factory reset).

If the problem persists, please bring the purchase invoice, repair card and machine to the Samsung service center, and the engineer will check the machine and deal with it. Please click the following link for the specific location of the Samsung service center:

Samsung knows that we will provide you with high-quality solutions and answer your questions attentively, and hope to get your satisfactory evaluation.