Hi
To try to solve the pen/touch delay problem (described here), I installed the (HP F-HD Touchscreen Controller Firmware Update) from this page. This isn't my model, but I thought it would either be compatible or refuse to install. However, it isn't compatible but it still installed wrecking my touchscreen!
Now, the touchscreen is erratic registering about 5 random inputs a second. The only way I managed to able to use my computer after the doomed firmware update is through the previously installed TeamViewer. I logged in from another device, disabled user input, then disabled the touchscreen from the device manager. So, I can use my computer as long as I keep the touchscreen disabled. The touchscreen behaves the same way even in the BIOS (when I press F2) registering constant random inputs.
I spent hours trying to fix this problem and find a firmware for my computer with no luck.
I found similar posts by other people, and they managed to fix the problem by downloading the firmware from the (Spectre x360 13-4100) page, but it isn't compatible with the 13-ac000 series, and it refuses to install.
It's really frustrating how the firmware update doesn't have a fail safe to stop it from being installed on incompatible devices, how the installer doesn't have the option to create a rollback backup file (like BIOS updaters), and how a single 1mb file (original firmware) can solve this whole ordeal for me.... for some reason, HP can't be bothered to upload this file on the support page along with the other drivers.
I bought my computer abroad and sending it to HP service isn't an option where I am... Please HP, upload the firmware for the Spectre 13-ac000 series!
I've also tried the (Spectre x360 15-ap00), but it refused to install.
Any suggestions on how I could fix this problem??
Note:
Please, no need to suggest doing a windows restore and/or the HP recovery, and/or update the BIOS as none of these solutions help.