1, U disk into the computer heat, depending on when, if in the summer, due to the computer heat plus U disk size is small, not easy to heat, the hand feel hot is normal. If it's winter, it's not normal for your hands to feel hot.
2, there is another possibility, is the U disk short circuit, it should be very hot, and will have an impact on the computer, if serious will burn the computer motherboard, so the user should be able to feel.
3, the U disk inserted into the computer does not reflect, mostly because the u disk drive has a problem. Its performance is :(1) the U disk plugged into the computer has a prompt sound, but there is no drive letter or there is but can not open. (2) When slightly damaged, it is useless to plug in this computer, but it can be displayed and opened in another computer; It can't be recognized when plugged into any computer.
4, the solution to the u disk mass production, re-write the U disk drive. (1) Download the main control chip testing software, test and main control manufacturer, model, and record it for backup. (2) Download the mass production tool that matches the master model. (3) Enter PID and VID data in the mass production setting item. (4) Click the Start mass production button to carry out mass production. (5) After mass production is completed, select all to pop up.