: From the list of models, select MediaTek USB Port or MediaTek Preloader USB VCOM Port , click Next , and confirm the installation.
: Restoring lost cellular connectivity data after a bad software flash.
Click , browse to your extracted driver folder, and select the appropriate .inf file (e.g., cdc-acm.inf or vcom.inf ).
Even with an "extra quality" driver, technical glitches can occur. Here are the most frequent problems and their fixes: