There are many kinds of Wi-Fi malfunctions, and we can find out the cause according to the faulty performances based on the function principle.
For instance, if we cannot connect the Wi-Fi, the Wi-Fi chip, or its power supply, clock, and main control have been faulty instead of RF circuits.
On the contrary, if we can connect the Wi-Fi but no signal, then the Wi-Fi RF circuits have been faulty, it fails to transmit the signal. The Wi-Fi transmitter circuits might have been disconnected.
In this video, we share how to fix Wi-Fi not working or no signal faulty.
Repair Ideas On All Android Phones – Why Your Phone Has Low Internet Speed.
Does it happens to your repairs ? phone network has serious slow network, but strong signal being there. To blame the mobile network operator is not always right, since the issue might be caused by phone faulty, and you could lose your customers by doing so.