This touchscreen firmware procedure comes from a 2019 Lenovo Support response for the YOGA 720-13IKB. Before uninstalling Wacom Pen or running firmware, confirm your model, display resolution and monitor hardware ID against Lenovo’s Yoga 720 13 selection table. If the match is unclear, stop and contact Lenovo Support. The cited forum procedure does not specify supported operating-system versions or power/battery prerequisites. Confirm these with Lenovo before proceeding.
1. Download the YOGA 720 13IKB Firmware Update Utility below
2. Press Windows Key + X and uninstall Wacom Pen under Apps and Features.
3. Right click on Desktop Home Screen and take note of the recommended resolution under Display Settings.
4. Press Windows Key + X>Open Device Manager>Expand Monitors>Right click on Generic PnP Monitor and select Properties. Under Details Tab, expand Property section to select Hardware IDs and write down the info (e.g. IVO).
5. Go to the folder where the firmware was extracted. Look for the Firmware using the Resolution and Hardware ID Information (see Lenovo’s Yoga 720 13 selection table). The source labels the 13-inch UHD hardware ID as AOU; do not assume that an AUO ID is equivalent without confirmation from Lenovo.
NOTE: For a matching Yoga 720 13 entry with two firmware options, begin with the first firmware named in Lenovo’s table and test to confirm it resolves the issue. If this does not correct the problem apply the second firmware and test again. Do not use the machine during the update process. This may cause the firmware to fail.
6. Wait for the update window to close, then restart the computer.
7. Check whether touchscreen input works.
8. If it works correctly, reinstall the appropriate Wacom driver from Lenovo’s driver support site, as Lenovo’s follow-up directs.