I have accumulated nearly ten years of production experience in the production of U disk, and I have heard many customers’ reactions. I have ordered that the capacity is insufficient, and the computer is plugged in. The U disk has no data zero bytes, or the U disk is originally 16GB, but it is stored. You can’t save a few photos anymore. In this case, it’s not how big the customer’s photo file is, and the customer
The U disk in hand is inherently insufficient in capacity.
Looking back on the sales experience for so many years, I have also heard countless customers who have been deceived complaining. In order to prevent another customer from being deceived by dishonest merchants, I will tell you the points that need to be paid attention to when customizing the gift USB disk.
First introduce the structure of the U disk: chip + solution (circuit board) + shell + solution technical support + assembly + packaging.
The real capacity and stability of the U disk mainly depends on the chip level. FLASH is divided into A, B, and C levels. The price of A level and B and C levels are quite different, but the A level chip is both in terms of stability and speed. Worthy of recognition. Although B can be used normally, it is prone to program drop, zero bytes, etc., and certain problems with normal use of C level.
The most primitive and awkward method of U disk detection is also the most useful and true method. Copy files such as video files or photos that are similar to the memory size of the U disk to the U disk (if the file size is not enough, it can be copied back to the memory) Until full). For example, if the USB flash drive has a capacity of 3.75GB, copy full 3.73GB files, the files can be used normally, and the video is smooth, it proves that the USB flash drive is qualified, otherwise it is inferior.
Precautions for using U disk:
1: This product is in use, please make sure that the computer is not infected with viruses, otherwise it may damage the built-in programs of the U disk
2: When it is not necessary, please do not unplug the computer directly. It is necessary to safely remove the USB and then unplug the U disk. Otherwise, the service life of the U disk will be affected?
3: Please keep a backup of important files by yourself, please do not cut to transfer files, it is best to copy “Develop a good habit of data backup”
4: Data loss may be caused by the following aspects, including sudden power failure, unstable power supply, human abnormal plugging and insertion, mistaken deletion, mistaken formatting, virus damage, static damage, encryption and permissions, firmware upgrades, electromagnetic interference, etc. Wait.