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Lenovo Ideapad 720S-14 Synaptics WBDI issue…

So I managed to repair mine by by updating the drivers much like the repair described right here within the Lenovo boards.

My gadget and settings are as follows:
Lenovo 720S 14IKB (81BD)
Home windows 10 Dwelling, Model 1903, OS Construct 18362.239
UEFI: Intel SGX = enabled

The repair principally is available in two elements:

1. Set up the total driver package deal (which needs to be ~27MB in dimension).

Sadly, the hyperlink supplied within the submit directs to a obtain web page with solely 6MB for the motive force. After scouring by home windows replace catalog, I discovered an acceptable driver:

A. Obtain driver from home windows replace catalog
i. Seek for “e0eff302-9830-4775-ad1c-8ca0cb667c9f” (the replace ID).
Synaptics Included – Biometric – 10/28/2017 12:00:00 AM – 5.2.311.26″, 29.2MB.
ii. Obtain the .cab file and extract to a folder utilizing 7zip (or another decompression software program).
For those who’re utilizing 7zip, you possibly can ignore “Warnings: There are some knowledge after the tip of the payload knowledge“.

B. Set up the “full” driver
i. Search and open “Gadget Supervisor”
ii. Beneath “Biometric units”, Proper click on “Synaptics WBDI” and click on “Replace Driver”
iii. Choose “-> Browse my laptop for driver software program”
iv. Choose “-> Let me choose from an inventory of accessible drivers on my laptop”
v. Click on the “Have Disk…” button
vi. Browse and navigated to your extracted driver folder and choose “sgx_base.inf”
vii. Click on “Open”, then “OK”, “Subsequent”, “Sure”, …, and many others. to put in the motive force.

I am unsure if that is mandatory, however I repeated steps 1.B.i. to 1.B.v., then in step to put in “synaWudfBioUsbLenovoSGXProd.inf”, as a substitute of choosing “sgx_base.inf”,

2. Set up newest suitable driver.

I could not register my fingerprints utilizing the default driver 5.5.2613.1050 [6/8/2017], so I attempted to search for the most recent suitable driver.

A. Decide {Hardware} IDs
i. Repeat 1.B.i and 1.B.ii, however as a substitute of clicking “Replace Driver”, click on “Properties” as a substitute.
ii. Go the the “Particulars” tab
iii. Choose “{Hardware} Ids” from the drop down
iv. Be aware down the shorter string. For me, it was “USBVID_06CB&PID_0081”

B. Set up the most recent suitable driver
i. Search the gadget ID. In my case, I entered “VID_06CB PID_0081”. I feel this needs to be the identical(?)
ii. Kind by “Final Up to date” and obtain the most recent obtainable driver. As of the time of writing, the most recent replace was 5.5.2734.1050, up to date 2/28/2019
Be aware that whereas the numbers and dates look the identical, the “Driver Mannequin” that won’t match what was initially displayed in your Gadget Supervisor. You may see the Replace Particulars by clicking the “Title”, which is a hyperlink.
In my case the unique string was “Synaptics WBDI”, NOT “Synaptics WBDI – SGX”. It does not appear to matter however I might use one with an identical Driver Mannequin simply to be secure.
iii. Comply with steps much like 1.B to put in the brand new driver.

Your fingerprint reader ought to work. You may attempt establishing your fingerprint underneath “Signal-in Choices”

After some testing, it looks like Intel SGX may be disabled submit set up. Nonetheless, fingerprints will solely work in case you set up a Driver Mannequin WITHOUT an “SGX” in its title. In any other case, each “Synaptics WBDI”, and “Synaptics WBDI – SGX” drivers work with SGX enabled.

EDIT: I misplaced my fingerprint after turning the laptop computer off. I feel SGX HAS to be enabled. and set up the ” – SGX” driver.

It’s possible you’ll have to delete/re-enroll fingerprints after altering drivers.

Hope this helps somebody on the market since I’ve misplaced many hours attempting to determine this out because the 1709 or 1803 replace.


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