, latest drivers and helper tools (like QLRepairHelper) are often hosted on the QianLi Support Page Distributor Support: Sites like IR-Laureii
A: Three common reasons: (1) Your phone case is too thick – remove it. (2) Your phone requires OTG to be manually enabled. (3) The camera is faulty – try it on another phone. lcad11 thermal camera software download link
Try a different USB port or replace the cable. Ensure the drivers are updated in the Device Manager. , latest drivers and helper tools (like QLRepairHelper)