Question about Sony Reader Pocket PRS-300

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My computer is no longer recognizing my sony e reader. if i uninstall and reinstall will that fix my problem, but will i lose my new book i just bought

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I have downloaded some books to my computer,but they are not transferring to my Sony e reader - please help, I'm desperate!

Posted on Dec 23, 2010


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SD card not recognized

What happens when you tried to plug-in SD card to the computer?

Have you made any recent changes to the computer prior to the issue?

To make the SDHC be recognized by the computer, we need to ensure that the card reader works in Windows 7 first. Please check if the card reader is recognized properly by the computer and you have installed the driver for it.

Meanwhile, you can plug some other storage cards to the card reader and see how it works.

I would suggest you to refer the link below
A Secure Digital (SD) card may not be recognized on a Windows 7 based computer.

Uninstall all the Generic USB drivers and reinstall.

1. Open Device Manager.

2. In "Disk Drives" dropdown, uninstall the "Generic SD/MMC USB device" drive.

3. Restart computer.

4. Insert SDHC card.

Hope this helps.

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I received a message on the sony reader program that the device was authorized to another account, which is not the case. It also showed errors on the side panel under Library. What I think happened is...

Hi Karen_mar606,

To reinstall the Reader Software you can go to the link below:

If the issue still persist you may need to delete the registration folders for the reader and then reinstall again. I'm not sure which OS you have in your PC but you can find a way to delete these folders on the forum below:

Hope this info helps


Jun 29, 2011 | Sony Reader Pocket PRS-300

1 Answer

My e-reader is not responding and I can't download new books from my computer

1)first please delete your current E-Reader.
2)Then reinstall your E-Readerfrom any of the known websites
3)Search in these websites to install.
Hope this will work

Dec 14, 2010 | Sony Reader Touch PRS-600

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I have a NEC DVD RW ND-3530a and my windows xp service pack 3 stopped recognizing it. it no longer reads as a drive. The device manager has it listed with a yellow !. I have tried uninstalling and...

Remove the drive from your computer, and temporarily connect it to another desktop computer.
If it still does not work, then it's time to responsibly recycle it, and spend $40 to purchase a new CD/DVD reader/writer.

Dec 10, 2010 | NEC ND-3540A DVD RW Dual Layer Burner

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Lately computer has stopped recognizing the camera and the sd cards for downloading photos? Any guesses?

Let me explain you the possibilities:-

When you pull out a flash drive or memory card without using the Safely Remove Hardware function, Windows will often completely lose track of that memory card reader or flash drive. Apparently Windows thinks that it's still installed, but doesn't remember how to access it. When you install it again, Windows doesn't react at all.
The fix is simple: reboot the computer.

But if its the regular problem then you can try uninstalling the usb drivers and reinstalling them again.

If still the problem exists.try reinstalling your operating system again as this will fix the issue for sure.

Thanks. you can rate this solution and show your appreciation.

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Computer will not recognize prs600 when you plug it into the usb port. I have used the reader before and downloaded books and now, all of a sudden, the usb port won't recognize the device. The reader is...

When this situation occurs, the Reader will not appear in the left pane of the Reader Library software or the Reader Library may shut down when connecting the Reader to the computer. Follow these steps to resolve this issue.
IMPORTANT: Before starting this or any troubleshooting procedure, verify that the Portable Reader has been updated with the latest firmware version and that the latest version of the Reader (eBook) Library software is installed on the computer. The latest firmware and software is available at the Sony Support Web Site.
NOTE: Because each of these steps represents a possible solution to this issue, open the Reader (eBook) Library software and connect the Reader to the computer after completing each step.
  1. If the reader is not recognized by the library software, close the software, re-open it and then check the connection status again.
  2. Verify that the Reader is turned on and is not locked.
  3. Verify that the Reader battery has an adequate charge.NOTE: If the Reader battery is discharged, allow the battery to charge for at least one hour before attempting to connect the Reader to the Reader (eBook) Library software.
  4. Verify that the USB cable is properly and securely connected to the Reader and the computer.NOTE: The USB cable should be connected directly to the computer. Connecting the Reader using a USB hub or extension cable is not supported.
  5. Verify that the Reader displays the USB connection indicator in the upper-right corner of the screen.
  6. Remove any Memory Stick® media or SD media in the Reader.
  7. Disconnect the Reader from the computer, close the Reader library software and restart the computer.
  8. With the Reader disconnected from the computer, perform a hard reset.
  9. With the Reader connected to the computer, uninstall and reinstall the Sony Reader USB driver.
  10. Install the Reader library software on a different computer and connect the Reader.
The troubleshooting steps listed above should resolve your issue. If you have completed all of the steps and the issue is not resolved, service may be required. Follow the below link to get it serviced:

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Computer no longer recognizes my Sony Walkman NWZ-E4365. I have attempted to update drivers in device manager to fix, no dice. Within the device properties I receive this message: Windows cannot start...

Unplug the power cable from the cpu, and all usb devices, let it sit for about 10-15 mins... then plug everything back in and start up computer... see if itll recognize it...Try all usb ports also.

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check usb cable working properly.reconnect it with other port then uninstall driver then reinstall.

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Reinstall nero and search google for removing nero scout


please rate the solution.

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