What are the repair tips for sharing USB flash drives?

USB flash drives play a very important role in our lives. First, USB flash drives can help me store files and the like, but many users use USB flash drives to be very casual and free to plug and drop. Some functions are damaged. How do you deal with such a situation?

Is there any way to restore the function of the USB flash drive? The answer is yes, you can follow the steps below:

Open the control in turn. Panel, management tools, computer management, storage, disk management, there will be a picture interface (the capacity of my U disk is 120M).

Right-click on the text "Disk 1" and select "Initialize Disk" by clicking on “OK”. After the initialization is completed, the status of the USB flash drive becomes the status of "Online".

Note that the U disk lock should be open at this time, otherwise the following prompt will appear: “Because the media is write protected, the required operation cannot be completed. ”

Right-click on the white box on the right and select “New Disk Partition” to enter the New Partition Wizard. Click Next to select the partition type (primary disk partition, extended disk partition or Logical drive), generally select the primary disk partition. (Note: The following dialogs will appear in sequence, so the screen copy is not given here.)

Next Step - Select the disk space capacity: generally use the default size.

Next - Assign a drive letter (or no assignment).

Next-Select <; Format this disk partition as follows: Set the format (file system type, allocation unit size, volume label) (do not select Quick Format).

Next Step - Successful completion of the formatting wizard. Click Finish to wait for its formatting to complete.

After the formatting is completed, the U disk status is displayed as “good status”, that is, you are done.

This repair method generally restores the USB flash drive. However, this repair method also has a drawback, that is, the original data on the U disk cannot be restored. If the original data on the USB flash drive is not very important, this method is used. If there is a very important file on the U disk, you must restore it. It is recommended to go to a professional company.

Attachment 1:

Many people have encountered customers who require data recovery, but they do not have a clear method. The following are examples of specific methods for U disk data recovery. Explain:

Case 1: There is a customer requesting a data recovery capacity of 256M for the U disk. The U disk is not reflected when the customer comes in!

Steps ask the data in the U disk. The amount is about 80M, telling the customer to recover 100 yuan per M data, because the CAD drawings used in the internal engineering are very important, so the customer is very happy to agree, the engineer solved the following ideas:

1. Disassemble U disk is packaged in one, the customer requires only data, so the shell does not have to be considered. After disassembling, the main control uses the I5062 solution as follows:

(1) Power supply: check the VCC main supply voltage is normal (VCC =3V power supply is the key voltage for U disk operation)

(2)Clock: By measuring the clock crystal, the two legs have a voltage of about 0.8V, and the clock circuit is judged to be normal, and the crystal oscillator is replaced by the substitution method. Still (clock signal is the master Inevitability of work)

(3) Communication: Through the measurement of the above two points, it is preliminarily judged that the power supply and the clock are normal, mainly check whether the communication line is normal, and check the D+ and D- to the main control line. Normal!

(4) Through the measurement of the above points, it can be preliminarily judged that the working conditions of the main control are all available, and the rest is the main control problem. I believe that everyone will replace the main control and achieve the purpose of data recovery, but we have told you with years of experience, wrong, because there is a control program inside the U disk master chip, when replacing a new master, it will not be FLASH Identification control must be initialized by mass production tools, but this will cause low-destruction of FLASH internal stored data! According to our many years of experience, the main control damage is mostly due to internal DC-DC converter leakage. To make it not work due to the low internal power supply voltage of the main control, the solution is as follows: remove the 3V voltage regulator of the U disk, and connect an external adjustable power supply to the 3V output terminal to adjust it to 3V voltage. The 0.1V mode is used to increase the voltage. When the U disk can be recognized normally, the voltage is stopped, so that the data of the U disk can be read out. The principle is because the main control internal DC-DC converter leakage, so that the normal VCC = 3V voltage can not meet the main control work, then you can artificially adjust its supply voltage to compensate for leakage losses! When I adjust the voltage to 3.4V computer Can be recognized normally, quickly copy the data in the U disk to save, 800 yuan to hand, simple, huh, technology is the first productivity is correct!

USB flash drive function can be repaired, sometimes not If you can't use it, you can discard it at will, but you don't know how to fix it. You can try the above method to ensure that you can fix your USB flash drive.