Sandisk Ultra Fit 128GB disconnecting while format

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1

Hello, i can see the pendrive correct size but when i want to format it is disconnecting and connecting - format fault.
Any tool can help?

2

Why are you trying to format it? If it’s new it doesn’t need to be formatted.

3

its not new. I was using for about 2 years with no errors. Now then im trying to write data - copy fault. So i was trying to format but then disconnected and connected after aroud one secound and format fault. after thet is disconnecting and connecting back every couple secounds.

4

The connecting / disconnecting sounds like an electrical connection problem. Lightly cleaning the port and USB contacts with emory paper should help.

The write data - copy fault sounds like something a chkdsk /f terminal command can fix. And the Command Prompt needs to be Run as Admin mode. (requires a right click to invoke)

5

Unfortunantly, checked in few usb ports and cleaned pendrive connectors and didnt help.
chkdsk /f also showing like below
The type of the file system is exFAT.
Volume Serial Number is 1228-8A62
Windows is verifying files and folders…
The upcase file content is incorrect.
Corruption was found while examining the volume bitmap.
The upcase file content is incorrect.
Corruption was found while examining the volume bitmap.
Corruption was found while examining files and directories.
An error occurred while examining the volume bitmap.

6

OK! Try chkdsk with all 3 of these options at one time:

chkdsk /f /r /x

plus the USB’s drive letter. And it must be run in Admin mode like the last time.

7

Not getting formatted

8

Why are you formatting? Are you getting the same errors as Greg24? Did you try all the steps mentioned above?

1 Like
9

Your Sandisk Ultra Fit 128GB disconnecting during formatting could be due to a faulty USB port, cable, or the drive itself. Try using a different port or cable, and if the issue persists, contact Sandisk support for assistance.

10

You can try using DiskGenius or HDD Low Level Format Tool to format your pendrive. These tools are reliable for fixing format faults and other issues with USB drives. If these tools fail, the pendrive might have a hardware issue.

11

It might be a connectivity issue. Try using a different USB port or cable, and ensure your computer’s USB drivers are up to date. If the problem persists, the drive might be faulty and needs replacement.

12

You can start by using Diskpart to clean and reformat the drive-through Command Prompt with admin rights. If this doesn’t work, you can try tools like HDD low-level format tool for low-level formatting or partition management software such as MiniTool, and EaseUs partition tool.
You can also check for physical issues by ensuring the USB connector is clean and undamaged, and testing the drive on another computer. If still this issue persists then you need to replace the pen drive

13

If your SanDisk Ultra Fit 128GB drive is disconnecting while formatting, here are some troubleshooting steps you can try:

  1. Try a Different USB Port: Use another USB port on your computer, preferably a USB 2.0 port, as some drives may have compatibility issues with USB 3.0.
  2. Check for Hardware Issues: Inspect the USB drive for any physical damage. If possible, try it on a different computer to see if the issue persists.
  3. Use Disk Management: Instead of formatting through File Explorer, use Windows Disk Management:
  • Right-click on the Start menu and select Disk Management.
  • Find your USB drive, right-click on it, and select Format.
  1. Run CHKDSK: Open Command Prompt as an administrator and run the command:

bash

Copy code

chkdsk X: /f

(Replace “X” with the letter of your USB drive.) This will check for and fix any file system errors.
5. Use Third-Party Formatting Tools: If the built-in tools fail, consider using third-party tools like Rufus or HP USB Disk Storage Format Tool to format the drive.
6. Check Power Settings: Ensure that your computer’s power settings aren’t causing the USB ports to power down. You can adjust this in the Device Manager under Universal Serial Bus controllers.

If none of these solutions work, the drive may be faulty, and you may need to consider replacing it.