Solution: A. Confirm that the network ID in the lower right corner of the computer is Connecting; B. If the network is disconnected, check whether the RJ45 network port of the motherboard&the network cable&crystal head and router of the network have problems.C. If there is a yellow exclamation point at the network identifier, check if the network chip driver has installed OK; Method: ...

Solution: A. Confirm that the speaker logo in the lower right corner of the computer shows OK or not, and whether the speaker has a “x”.B. If the speaker logo shows OK, now let us check whether the audio interface of the motherboard & audio equipment & headphones&speakers have problemsC. If the speaker has a cross, check if the sound card chip driver has installed OK; Method: Right-...

It first enters the system to see if the computer's network settings are correct, and the internet connection methods are different in different environments (generally there are computer dialling, router dialling or fixed IP/DNS internet connection through switches). under the condition of confirming the computer's network settings are correct, it is generally possible if the network is not conne...

First of all, observe whether there is any bump, damage or deformation during movement and transportation, whether the lens is damaged, cracked or artificially damaged. Whether there is any metal foreign matter inside the integrated machine.