Chosen Solution
I wonder if I should replace the audio board or replace the mother board of this yoga pro 2 to solve this issue. This is the error information I get from device manager. Currently, this hardware device is not connected to the computer. (Code 45) To fix this problem, reconnect this hardware device to the computer. https://forums.lenovo.com/t5/Lenovo-Yoga…
Hi, Are you having Audio problems or WiFi problems? If WiFi Why would you replace the audio card for a potential WiFi card problem? Have you tried pressing F7 to disable Airplane mode and see if this enables the WiFi? Check Network configuration page (Settings > Network) to ensure the Wi-Fi switch on the Network configuration page is toggled to On Check in BIOS to see if there is an enable/disable setting for the WLAN. If all these are OK then here is a link to the ifixit Lenovo Yoga 2 Pro Wireless Card Replacement guide. to check if the WiFi card is seated properly into the connector. Be careful when you do this as the battery is still connected to the systemboard. DO NOT slip with any metal tools that you may use. To be safe disconnect the battery first. You don’t have to remove it just disconnect it. If it seems OK the WiFi card may be faulty. The card information should be printed on the card. Search online for suppliers of a replacement card If Audio, What OS is installed in the laptop?
I had the same issue , this is what fixed my issue , Right click on battery icon to get power option, in power options window ,click on “choose what closing the lid does “, it will take you to power option , here click on “ change settings that are currently not available” after this , uncheck the “ Turn on Fast start up” and then save changes
I finally solved the problem. It’s a software issue. All hardware functions. Thank you for the reply. https://pcsupport.lenovo.com/us/zh/produ…
