He didn't know that Android drivers aren't like PC drivers. You don't just "download" them from a random site. They are baked into the kernel by the manufacturer. By trying to force a "driver," he had actually installed a piece of malware that was now busy encrypting his photos and trying to access his banking app.
Panic set in. He tried the hardware reset keys—Power and Volume Down. After a tense recovery menu navigation, he performed a factory reset.
: Drivers are updated through system OTA (Over-The-Air) updates.
A progress bar crawled across the screen. 10%... 40%... 100%.