At present, the use of USB flash drives has become very common. People often use USB flash drives to back up, carry, and transfer files. However, if you forget to detach the USB flash drive from the USB port *, or do not detach the USB flash drive * completely, or due to a mistake, pulling the USB flash drive from the USB port may cause damage to the USB flash drive, and sometimes the computer may not recognize the USB flash drive. If you have no experience dealing with such a situation before, you may think that the USB flash drive is no longer usable and should be thrown into the garbage bin. However, this is a pity.
Is there a way to restore the USB flash drive? The answer is yes. follow these steps:
Open the control panel, management tools, computer management, storage, and disk management in turn, and you will see some interfaces (the size of your USB flash drive is 120 MB ).
Right-click the text "Disk 1", select "initialize disk", and click "OK ". After the initialization is complete, the U disk status changes to "online.
Note that the USB flash drive lock must be enabled at this time. Otherwise, the following prompt will appear: "due to the write protection of the media, the required * operation cannot be completed ."
Right-click in the white box on the right and select "new disk partition". In the new disk partition wizard, click Next and select the partition type (primary disk partition, extended disk partition, or logical drive ), generally, select the primary disk partition. (Note: The following dialog box appears in sequence, so the screen copy is not provided here .)
Next-select disk space capacity: The default size is generally used.
Next-assign a drive letter (or not ).
Next-select the format (file system type, allocation unit size, volume label) for "Format this disk partition by following the settings below" (you do not need to select quick format ).
Next-the formatting wizard is successfully completed. Click Finish to wait for the formatting to complete.
After formatting is complete, the USB flash drive status is displayed as "good", that is, success.
In general, this method can recover the USB flash drive. However, this repair method also has a drawback: the original data on the USB flash disk cannot be restored. If the original data on the USB flash disk is not very important, this method is relatively used. If there are very important files on the USB flash drive, they must be recovered. We recommend that you go to a professional company. At present, there are basically professional companies in major cities that do data restoration.
Appendix 2: USB flash drive Common Faults
USB flash disk ~ Please insert the disk into the drive ~ Related Questions
Fault Cause: when data is transmitted to the USB flash drive, the drive letter is changed.
Fault description: Windows XP SP2 operating system, USB flash disk is Tsinghua Ziguang OEM
1. After inserting a USB flash drive, "my computer" will show "portable disk (H :)", but "double-click" will show "please insert disk into drive (H :)"
2. view the "portable disk (H :)" attribute. "used space" and "available space" are both 0 bytes.
3. Right-click "format" and prompt "drive H has no disk. Please insert a disk and try again"
4. In "disk management" in "Computer Management", the drive letter "H:" is not displayed on the disk, and "Disk 1 is removable and media-free" is displayed below"
5. reinstall the driver and prompt "The Wizard cannot find the software that matches your hardware more than the software you have installed"
6. Use the managex tool to fix the problem. The corresponding "format" and other functional options are unavailable in gray. Use the iformat tool to format the problem. The system cannot identify the available USB devices.
Appendix 3: How to Handle "please insert disk into drive" on a USB flash drive
The new USB flash drive sent by a friend is broken: The reason is unknown.
Then a friend sent the USB flash drive. connect to the host for the first time. After the system correctly identifies it, my computer will see a "removable disk", but after double-clicking the USB drive letter, the "please insert disk into drive I" prompt will appear, check that the disk property capacity is all 0 (fault symptom ). try formatting, try it in the system, or prompt "drive I has no disk. insert a disk and try again ":(. there is no way to download several USB flash drive formatting tools from the Internet ~ Still the same :(. is it an interface problem: Q: But my friend tried it on several machines. I 'd like to try it with Xiao Xing's mind. Switch to the USB interface before and after the machine, but the fault has not been solved yet. I thought the new USB flash drive was broken: Q :( it won't be like this "stream": W :). later I found a USB flash disk clearing tool named erasw.ls2.1. I thought it should be the same principle as the hard disk clearing tool, and sugon finally appeared. the usage of the software is quite simple (: resetting tool), as long as the software is installed after the USB flash disk is connected (if the USB flash disk is not attached), run the software, click Start, and click yes, program to automatically restore the U disk initialization status. try the result, haha ~ The USB flash drive has been revived (: Fault relief). The problem has also been solved .................. :
Appendix 4: how to insert a disk into a drive on a USB flash drive
After a USB Plug-in is inserted into a USB flash drive, the USB flash drive indicator will be on and the disk symbol will be displayed in my computer. However, when you double-click it, the following message is displayed: Please insert the disk into the drive. The same message is displayed when you format the disk. I'm not at all.
The solution is as follows:
1. Right-click my computer, choose "manage"> "Storage"> "Disk Manager". On the page on the right, you can see the icon representing the flash memory. Click it and select "Create a partition ", follow the prompts to complete formatting and other operations. The problem is expected to be solved.
2. Download the "starsuo low-level formatting tool" to perform low-level formatting for flash memory.
How to Use the USB flash disk Repair Tool (portfree production program 3.27:
(1) Click "option" in the lower right corner of the software. The following window is displayed.
(2) Select others and choose type> removable.
(3) Select "Capacity adjust" and select the capacity of your U disk. If no capacity is available, click "add ", enter the capacity you need.
(4) Select "Flash test" and select "low level format". Here there are two parameters, one being "all blocks" (which means low formatting of the entire disk ), the other is good blocks (it means only low-formatted blocks. this parameter is suitable for USB flash drives containing bad areas)
(5) After selecting all the above methods, click "OK" to save the settings, connect the USB flash drive to the computer, and click "run" to start low formatting.
The above two methods seem to be very useful, but they are not easy to use when applied to this USB flash disk.
1. The upper part of the interface on the right does not see the flash memory icon. The lower part does not have the icon but cannot be hit by the store;
2. After I press "run", the USB flash drive letter on my computer disappears, and the USB flash drive lights do not flash. Low-Level Formatting cannot be completed.
Appendix 5:
Many people have met customers who require data recovery, but they do not have a clear method. The following describes how to recover data from a USB flash drive:
Case 1: A customer requested that the data recovery capacity of the USB flash disk be 256 MB. the USB flash disk access to the computer was not reflected when the customer obtained the data disk!
Step 3 asked about the data volume in the USB flash disk at around 80 m, and told the customer to recover 100 yuan per M. Because the CAD drawings used in the internal project are very important, the customer readily agreed, engineers solve the problem as follows:
1. Because the USB flash drive is encapsulated and integrated, the customer requires only data, so the shell does not need to be considered. After the USB flash drive is split, the i5062 solution is used by the main controller as follows:
(1) Power Supply: Check whether the main power supply voltage of the VCC is normal (VCC = 3 V power supply is the key voltage of the USB flash drive)
(2) Clock: by measuring the voltage of about V at the foot of the clock crystal oscillator, It is preliminarily determined that the clock circuit is normal and the replacement method is used to replace the crystal oscillator fault (the clock signal is an inevitable condition for the main control)
(3) Communication: Through the measurement of the above two points, it is preliminarily determined that the power supply and clock are both normal, mainly to check whether the communication line is normal, check D + and D-to the main control line is also normal!
(4) Through the above measures, we can preliminarily determine that all the conditions of the master control are met, and the rest is the master control problem. I believe everyone will change the master to achieve the purpose of data recovery, but we tell you with years of experience that the error is due to the Internal Control Program of the USB flash disk master chip, when a new master is replaced, the flash will not be identified and controlled. It must be first-made by the mass production tool, however, this will conduct low-level flash damage to internal storage data! According to our years of experience, most of the damage to the main control is caused by leakage of the internal DC-DC converter, so that it does not work due to low power supply voltage inside the main control, the solution is as follows: remove the 3 V regulator of the USB flash drive and adjust the external adjustable power supply at the 3 V output end to the 3 V voltage to increase the voltage by 0.1v each time, when the USB flash disk can be recognized normally, the voltage is stopped, so that the data of the USB flash disk can be read. 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 manually adjust the power supply voltage to compensate for leakage losses! When I adjust the voltage to 800 V, the computer can properly identify and quickly copy and save the data in the USB flash disk. yuan is enough. It's easy. Haha, technology is the first productivity!
Case 2, the USB flash drive can recognize the disk, but the prompt "format the USB flash drive" is displayed "! I believe everyone is very difficult to solve this problem, because we can fully judge that there is no problem with the USB flash disk hardware. Most of them are software problems, but they cannot format the USB flash disk. What should we do? Specific solution: Our engineers first split the flash of the USB flash disk to protect the data and reload it into a flash of the same type. After accessing the computer, the system still prompts you to format the data because there is no data in the new flash, after formatting, you can access the data normally. However, if you change to flash with data, you will be prompted to format the data. Therefore, if you do not install flash, you will be prompted to connect the USB flash disk to your computer. The system will prompt you to format the data, after formatting the USB flash disk itself, we can see that the disk capacity is 16 kb in the attribute, mount the flash with data, access the computer, and the system will not prompt formatting to read internal data smoothly! Repaired,
