Case:
Customers require the data recovery capacity of the U disk 2G, and the U disk connects to the computer when the customer brought it without any reflection!Because the CAD drawings used in the project inside are very important.
Solution:
Because the U disk (excellent disk) is opened, because the customer requires as long as the data is required, so the shell does not need to be considered. After the disassembly is dismantled, the main control uses I5062 scheme is as follows: (1) Power supply: Check the main power supply voltage of VCC (VCC u003d VCC u003d3V power supply is the key voltage of whether the U disk works).(2) Clock: By measuring the voltage of about 0.8V by the clock crystal oscillator, the clock circuit is normal, and the replacement method is used to replace the crystal vibration.(3) Communication: By measured on the above two points, the power supply and clock are normal. The main check of the communication line is normal, and the inspection and D-to the main control line are normal.After data recovery engineers’ efforts, customer data recovers successfully.