In spite of the 2 OSFW updates developed by Microsoft to fix the touchscreen issue on the Lumia 535, mine still had bugs, getting all the more worse and worse. br br I sent my Lumia to the Microsoft (ex-Nokia) Care, and it came back with a new model of touch panel. "Component replacedfront panel replaced" says the repair report. br br The video beforeafter is quite telling. I can now register 4 or 5 fingers, "pinch" 2 fingers as close as I wish, etc. br br Conclusion: for *some* devices, like mine, the issue is hardware.