How to fix USB Error 23? (Stereos)


Recently I had an unpleasant experience with my Pioneer DEH-159OUB car stereo, when I inserted my SanDisk Ultra Dual USB Drive 3.0 16 GB to play some music. Each time when switched the mode to USB, it was displaying ERROR 23 again and again no matter what I did. It was a long drive that I was up to and unfortunately drove without playing a single song because of that error.

So what’s this ERROR 23 really is?

The following error shows up when the stereo doesn’t detects the USB device which we insert or in other words the Files system of the USB is not recognized by it.
Soon after when the error was encountered, I recalled back and spent hours thinking what else I did with my USB flash drive which was causing the error and finally got the answer. I had made my flash drive bootable using RUFUS which changed the format of the thumb drive to NTFS, and when my job was finished I simply copied my songs folder in it and started packing up for the journey.

So here are the simplest steps to bypass the USB ERROR 23,
• First thing first, connect your USB flash drive to the PC & backup what’s inside!!

• After that, Right click on the drive and click Properties. Where you can see that its not the same format that the stereo supports (which is FAT 32).


Fix USB Error 23


• Now close the properties window and right click on the drive again and hit the format option. (As shown in figure)

• Change the File system to FAT 32 (Default) and hit the Start option.


Fix USB error 23


• It will delete all the files in it (that’s why we did the backup of the contents before).

• Done!!! Just copy your music files back to your flash drive and connect it to the stereo again, there will be no sign of ERROR 23 from now. Down below is a quick tutorial for fixing the following error.

Note: Even after following the steps still the error is showing up, then probably the problem is with your USB thumb drive. You can simply run a check using free tools like windows Check Disk (CHKDSK) to see whats wrong with the device. Sometimes lots of bad sectors present in drives causes performance degradation.

USB Error 23 Fix [Tutorial]



That’s it!! If you have any kind of problem related to the following topic you can comment it down below like always.
Happy Driving!!

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A Tech Geek who loves to write about Blogging, How-To's and topics around Android platform. He founded techulk with a sole purpose for providing visitors the exact information they need with simple and step by step working explanations.


  1. I had same problem tried everything you said didn’t work so i downloaded the EaseUs partition manager and worked absolutely fine thanks. Andy

  2. I tried this but y problem is a little different and it didn’t fix it. When playing the USB it cuts the songs short. It is so frustrating! The usb plays fine on other devices. Any suggestions please? I have formatted to fat32 and put the songs back and it still does it.

    • It’s a trick of Windows that prevent people to format in Fat32 for high capacity storage (apparently more than 32Go).
      You have to use a tool like Easus Partition Master or equivalent.
      The theorical limit of Fat32 is 16Tio so it should be ok !

  3. Does this work with CDs too? Because I tried burning a CD and when I put it in my truck to play it, it says Error 23 and my format was already the way it should be at the FAT 32 ( Default )

  4. I am not even able to do the backup in the PC. Is asking to format it. I would love to retrieve the music that I have there. WHat else I can do?


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