You denied all responsibilities regarding the trouble I have with Lenovo Explorer. Remember me? I had given up, but now have returned.
I installed Riftcat 2.0, and connected NOLO with SteamVR. This setup you have got to support, right?
But in no VR games the trackpad works. Other buttons are fine. Menu button, grip button, trigger are all OK. Only the trackpad is completely numb. Again, in the NOLO visualizer the trackpads are fine. It's a software problem.
I tried uninstalling steamVR, and then wiped the steamVR directory clean (steam\steamapps\common\SteamVR) and reinstalled steamVR. No joy.
I tried trackpad calibration from steamVR menu. No joy.
Just in case you want to know, my phone is POCO F1. There is no problem regarding graphics. Only the trackpad is driving me nuts.