Question about SanDisk Sansa m250 MP3 Player

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Please wait rebuilding the library. Then the m250 shuts off.

The Sansa m250 displays message " please wait rebuilding the library " , and then it shuts down. Have tried downloading firmware. I just bought it and I'm beginning to think my best option is to buy an Apple.

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Re: please wait rebuilding the library. Then the m250...

Try doing a hard reset on a Sansa m250:

  1. Turn off the Sansa. Just pull the battery out for a second and then reinstall the battery without pushing any further buttons.
  2. Plug the Sansa into a computer, and open "My Documents" in the computer.
  3. Open the Sansa file as if it were a drive, then go to the "MUSIC Specific storage" file.
  4. Right click the "MUSIC Specific storage" file, and press "Format."
This should hard reset the Sansa m250. This solution has worked for me.

I do not know if this will work on other Sansa m200 type .mp3 players.

Posted on Jan 10, 2008

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Re: please wait rebuilding the library. Then the m250...

Not sure if this will work for everyone, but when I got that error I suspected that the shut down was an auto shut off situation.
After I deleted a fewsong and added a few more to the 2GB Sansa m250 via WMP 11, it displayed "please wat, rebuilding the library". Then it would shut off.
I noticed if I hit the power button or any of the front panel keys, the device would not shut off. So I kept hitting keys every 30 sec or so. Eventually after a minute or two, the display changes to "Finalizing update". So I kept hitting the keys & the power button every so often. After approx 4-5 minutes, the device came back to life good as new.
It seems that the library becomes corrupted in some way and the device needs to "rebuild", only Sansa forgot to disable the auto-shutoff feature during rebuild.
I hope this saves some of you some time formatting and reinstalling.

Posted on Jan 07, 2009

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Re: please wait rebuilding the library. Then the m250...

I finally did it! I followed Gimpsisaties instructions but had to reformat it in both MTP and MSC format. ( If it is not already in MSC format you have to put in in hold mode when you switch it on). Looking at other forums it looks like the cause could be a corrupt file/song so I was very careful with what music I put back on. I did have some stuff from old CDs (made in the early 90's which were not tagged like the modern ones are).Touch wood it is still working after 2 days

Posted on Jun 30, 2008

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Sansa m250 playlists

First you need to set your Sansa m250 mp3 player to MTP mode:

) Tap your menu button and select "Settings" > "USB".
2) On this screen, make sure that there is a check next to "Auto Detect" and NOT "MSC".

Note: Music that was transferred to the player in "MSC" (Mass Storage Class) mode will not be accessible once the player is put into MTP mode.

However, the music can still be accessed by switching the player back to MSC mode.

To transfer a playlist using Windows Media Player version 10:

- Make sure device is showing as an "audio device" and in MTP mode
- Create a playlist by right clicking a song in the library, add to>additional playlists>new or by saving a now playing list
- Select the Sync tab and click "Sync settings"
- Check "Synchronize device automatically"
- Set "View" to "All Playlists"
- Place a check next to the playlists they want to transfer to device
- Media Player should then sync those lists once you hit OK.
Once you Sync for the first time a new folder "Playlists" will appear in your m250 using Windows Explorer. Once that folder is created you can even use Windows Explorer alone to create playlists, all you have to do is right click on a song and choose create a playlist. Double click on playlist > Reference Tab, on the window you simply drag and drop your songs.

Hope this helps

Aug 28, 2008 | SanDisk Sansa m250 MP3 Player

1 Answer

Rebuilding library


i advice you to reformat your Sansa m230


Jul 12, 2008 | SanDisk Sansa m230 MP3 Player

1 Answer


I would recommend that you update the firmware on your device..that usually solve the problem you are update the firmware follow the link below..
I hope that helps
Please rate accordingly
Thank You

Mar 24, 2008 | SanDisk Sansa m240 MP3 Player

1 Answer


Hey Shaya, Try this solution: double click on my computer right click on the Sansa icon Choose Format. This should release your snsa and allow you to upload music again and play it.

Sep 03, 2007 | SanDisk Sansa m250 MP3 Player

1 Answer

My directory where MP3 are stored in sansa m250 cannot be seen on the desktop

Gagan, Please see my answer here Formatting your Sansa should do it. Let me know if it didn't and please rank my answer. Thanks, D.

Jun 16, 2007 | SanDisk Sansa m250 MP3 Player

1 Answer

My m250 won't turn on

Hi. Seems like your M250 is experiencing some system errors that prevents it from either powering up or booting up completely. To resolve the temporary power loss (not powering up even after changing batteries), try this: 1. Remove the battery 2. Press and hold the "Menu" button for 30 seconds. This is to completely discharge the player 3. Insert a brand new battery and try to power it on If this procedure still does not revive the player, try this to format the player and upgrade its firmware: 1. Enable the "Hold" switch on the side of the M250. You would know the "Hold" switch is enabled when the "orange-colored" surface is showing 2. Plug the player in to the PC. (The minimum operating system requirement for the M250 is Windows XP and above). The M250 should be recognized as a "Removable Disk" when browsed in Windows Explorer 3. Right-click on that drive letter corresponding to the M250 and select "Format". 4. Follow the on-screen prompts to format the player 5. Unplug the M250 from your computer, then disable the "Hold" switch. Then try powering it on. 6. To upgrade the firmware of your M250, again enable the "Hold" switch and plug it in to your PC. 7. If you have internet access, then use this link to download the "Firmware Updater" from the Sandisk website: Save this to your desktop and double-click on it to run the updater program. Follow the on-screen prompts. I hope this helps. The M250 is a great player. Syd :)

Apr 06, 2007 | SanDisk Sansa m250 MP3 Player

1 Answer

Please Wait, Rebuilding the Library

GOOD LUCK!! i am soooo frustrated with these little **** players. my old Discman is looking pretty good at this stage. at least it was straight forward!!.

Feb 27, 2007 | SanDisk Sansa m250 MP3 Player

1 Answer

Player shuts off

This might be a really stupid suggestion so please don't rate me badly or anything. Check how loose the battery is. That could be the problem. If that dosn't work, maybe it's the battery itself. If that dosn't work, don't return it right away because it might be a very minor problem. Sorry if it dosn't work. Hope it works

Jan 03, 2007 | SanDisk Sansa m250 MP3 Player

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