Touchpad and USB does not work after fresh install

ACPI\PNP0C50 Device Drivers download

ftp://178.209.70.83/pub2G_2/ftp2/014594.rar

SIW2 said:

ACPI\PNP0C50 Device Drivers download

ftp://178.209.70.83/pub2G_2/ftp2/014594.rar

I ran the dpinst.exe as administrator and rebooted but nothing is different.
Is there something special I need to do? disable the existing HID devices first?

Btw, found an older Lenovo Yoga Win8 downgrading to Win7 with the same problem with touchpad with same (Compatible ID see red below): Downgrading from Win 8 and making I2C touchpad work with Windows 7 - Lenovo Community

01-21-2015 10:17 AM

Lenovo Yoga 3 Pro-1370, Intel Core M (CPU: 5Y70)

I have downgraded Lenovo Yoga 3 Pro-1370 to Windows 7-64 and its touchpad (Synaptics) is not detected by Windows at all (and not shown in Device Manager). As far as I understand, the touchpad is connected via I2C interface (not USB or PS2). I2C is handled by Windows 8 at a systemic level and very differently from Windows 7.

Lenovo does not support Windows 7 on Yoga 3 and does not provide Windows 7 drivers.

I tried different Win7 Synaptics drivers from other Lenovo models as well as generic drivers from Synaptics. No success.

What is the likelihood of making the touchpad to work with Windows 7? Will OEM drivers from other manufactures possibly work?

For Windows 8, the Yoga 3 chipset includes ‘Intel Serial I/O Driver’ which (I guess) takes care of I2C.

In Windows 8 Device Manager, there are 3 devices related to the touchpad

Touchpad itself
HID\VEN_SYNA&DEV_2B22&Col01
HID\SYNA2B22&Col01
HID\*SYNA2B22&Col01
HID_DEVICE_SYSTEM_MOUSE
HID_DEVICE_UP:0001_U:0002
HID_DEVICE
Driver: Synaptics


Intel(R) Serial IO I2C Host Controller - 9CE1
Location: on PCI Express Root Complex
Driver: 'iaLPSS_I2C.sys' (Intel)
ACPI\VEN_INT&DEV_3432&REV_0003
ACPI\VEN_INT&DEV_3432
ACPI\INT3432
*INT3432
Enumerator: ACPI
oem7.inf


I2C HID Device (on Intel(R) Serial IO I2C Host Controller - 9CE1)
ACPI\VEN_SYNA&DEV_2B22
ACPI\SYNA2B22
*SYNA2B22
Compatible Ids: ACPI\PNP0C50
HID\SYNA2B22&Col01\5&f4a3470&0&0000
HID\SYNA2B22&Col02\5&f4a3470&0&0001
Parent: ACPI\INT3432\3&11583659&0
Driver: Microsoft
Enumerator: ACPI
hidi2c.inf

Where'd it come from? Know how I can put my WiFi drivers on it (in it)?

Yes.
1.Copy boot.wim from your usb stick sources folder to your hard drive.
2.Mount boot.wim using dism++.
3.Add the drivers.
4.Save the image.
5.Unmount the image.
Copy the updated boot.wim into the sources folder on your usb stick.

You are best using the win10 wifi drivers from your manufacturers website.

screenshots for using dism++



In addition, before saving the image ( step 4 above) I suggest:

Copy the pecmd.ini file from this zip SYSTEM32-new-pecmd-ini.zip into the mounted boot.wim Windows\System32 to replace the existing one.

Then place the two files from this zip Root-of-USB-stick.zip on the root of the usb stick.

Create a folder on the root of your usb stick called Uprograms.

MOVE these folders from your mounted boot.wim Program Files to Uprograms folder on the usb stick.



MOVE this folder from the mounted boot.wim Program Files (x86) to Uprograms folder on your usb stick



Now save the Image, then unmount the image.

Your usb stick layout will look something like this:




Inside the Uprograms folder will be the folders you just moved ( similar to this)

bbaker6212 said:

@SIW2 any idea about the touchpad driver I commented on above?

You could try running the setup.exe instead of dpinst. And/or you could try uninstalling the current drivers from device manager before running setup.exe. And/or you can try installing the drivers using dism++.