How to make "fake" U disk restore real capacity

The actual size of 16G is only 4G? Believe it or not, anyway, someone is cheated like this. Here's how to fix "16G" to the true 4G capacity. First, check the chip of the U disk. With the tool chip genius! Device Name: [F:]USB Mass Storage Device (USB2.0 Flash Disk USB Device) PNP Device ID: VID = 1221 PID = 3234 Device Serial Number: 1000000000000E7E Device Version: 2.20 Device Type: Standard USB Device - USB2.0 High Speed Chip manufacturer: Ameco (Super Micro) chip model: MXT8208 Product manufacturer: USB2.0 Product model: Flash Disk Second, through the online search, you need to restore the actual capacity of the U disk through the chip corresponding mass production tools. Summary: Check and repair the fake U disk, expand the U disk, only a few steps can be. 1. Use MyDiskTest to check if it is a expanded USB flash drive. 2. Check the chip of the USB flash drive with chip genius. 3. Find the mass production tool corresponding to the chip and restore the actual capacity by mass production.