How long does it take to repair the 5800W screen during the warranty period?

See how far you are from customer service? If there is a local customer service, the fastest afternoon will be fine. If not, it is generally done within 3 to 8 days.

1. What is the three guarantees?

In layman's terms, it is a seven-day return, a fifteen-day replacement, and a one-year warranty.

2. Warranty time:

The warranty time for the head is 1 year, and the warranty time for accessories is: 6 months for the battery, 3 months for the wired headphones, 1 year for the charger, and 1 year for the memory card. (Unless otherwise specified by the manufacturer).

3. What are the circumstances that can not enjoy the three guarantees:

The time limit for return, replacement and warranty is exceeded; Man-made damage (including but not limited to water ingress, moisture, dropping, crushing, etc.); Dismantling the machine without permission (dismantling and repairing it privately at a maintenance station not authorized by the manufacturer); Damage caused by improper use of accessories (not caused by inferior accessories such as original accessories); Unable to provide proof of purchase such as invoices, agreements, warranty cards, etc.; Non-functional failure (generally manufacturers do not assume warranty for appearance problems, and manufacturers will notify you separately in special circumstances).

Reasons for the blurred screen of the computer:

Displays produce horizontal streaks: there are two main reasons for this:

1. External interference, such as electric sparks or high-frequency electromagnetic interference near the use site of the display, this interference will cause the display screen of the display to produce white horizontal stripes.

Solution: Avoid using the monitor in this situation.

2. Internal interference, this interference will make the display screen of the display appear black horizontal stripes, in this case, you can open the case to check whether there is a poor contact inside the display, whether there is a problem with the output end of the power supply or the output transformer, etc., because the reasons for this situation involve more professional technology, so it is best to ask a professional to repair it.

Improper display resolution setting causes blurred screen: When the monitor is set incorrectly in Win95, there may be blurry screen failure when starting Windows, that is, the picture is layered, shaky, serious and even black screen of death.

Solution: Enter the setup or enter the security mode of win95, and reset the display mode of the display.

Conflict between the graphics card and the Chinese system: In this case, when exiting the Chinese system, a blurred screen will appear, and any random keystrokes will not respond, similar to a crash.

Method: Enter at this time"mode c080"can be resolved.

The main control chip of the graphics card has a poor heat dissipation effect: this will also cause the phenomenon of blurred screen failure.

Solution: Improve the heat dissipation performance of the graphics card.

The memory speed is too low: When the memory speed is too low to match the speed of the console, the screen will also be blurred. Solution: Replace the video memory with a higher speed, or reduce the speed of the host.

Video memory corruption: When the video memory is damaged, the screen will be blurred and confused when the system starts.

Solution: The memory card must be replaced.

Viral causes: Blurred screens can also occur during certain viral attacks.

Solution: Use anti-virus software to eliminate it. Handling of special faults of displays caused by capacitor failure.

When the GPU of the graphics card is soldered, in many cases, the computer screen is faulty.