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Lenovo T420 Drivers Base System Device4/15/2021
Sometimes after booting it works for a few seconds but then the image freezes and it wont start again until after several system restarts.A look at the Device Manager (Windows 7, 64-bit) shows the Base System Device, and reports The drivers for this device are not installed.Attempting to get Windows to natively install the drivers does not work.Some googling shows others with similar troubles in the past; recommendations include installing a Ricoh card reader driver for Windows XP or Vista; this did not work.
Other available drivers include 8ass82ww.exe and 8axv51ww.exe - these do not work. Ive tried installing driver exe files and searching for those same files using the Windows browse-for-files window when installing drivers for Base System Device. Lenovo T420 Base System Device Full Reinstall AI had to do a full reinstall a month ago but thought all the things were installed. Also there is a second unknown device with location on Microsoft ACPI-Compliant Embedded Controller are these related or is this a second issue. I perform a last CloneZilla image (before doing the sysprep). ![]() I have tried reapply the drivers, deleting the device with drivers and rebooting so that the machine can redetect the device. I have installed X1 Ricoh multicard reader but still cant solve it. I saw that the SD card reader was not working neither so I assumend the missing driver was that one. From the Lenovo page I dowloaded the driver for the Multi Card port for W7 and T420. After installing it the message dissapeared and the SD cards were recognized properly. However, after rebooting the system, after a while, the mesage appeared again and the card reader stopped working. Lenovo T420 Base System Device Software Says ThereIt was a DOS workstation that I installed Win 7 x64 Ultimate on and I finally got all the drivers installed but the bluetooth software says there is no BT device connected to my laptop. Hitting the Fn5 combo doesnt trigger the light or any Found New Hardware. When the laptop first boots up the BT light flashes along with the wifi light and the HDD activity light. I havent yet been able to load another OS, but Im downloading Arch Linux and BackTrack 5 to test to see its possibly an OS issue. Lenovo T420 Base System Device Update The BluetoothI realize the sticky about the do not update the bluetooth drivers but Im not getting my bluetooth to work at all, not even being recognized by the OS as an unknown device. I have contacted a local service depot so the machine will go in for warranty service next week (after labour day weekend) if not resolved beforehand. I installed the drivers (current version) from the Lenovo web site but the webcam wont turn on. The green just wouldnt turn on and when I press FnF6 the communication tool shows up without any webcam video.
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