I've searched the forums and haven't found anything that helps.

I've tried my blackberry on three different computers and the only way I can access the MicroSD card is through the Media Manager. I'd really like to be able to just access it as a drive.

I've turned "Mass Storage Mode" on and off. I've changed it from "yes" to "prompt" and nothing I do seems to change it.

The only thing that I haven't tried is reformating the card.

Does anyone have any suggestions? Or is anyone else having the same problem?

What OS are you running? What size microSD card do you have? I know there are issues with 2gig cards. Also just guessing now but possibly permissions issue? You have sufficient rights on the PCs you're trying? Sounds like you're at the job (having multiple puters around to try) and some IT depts can get a lil crazy with the lockdown policies.

make sure the BB settings are correct and mrpg might be right with the IT policy and a mass storage being plugged in most places thats a big NO NO.
when you get home just click the my computer icon and select the F drive which is the removable media drive normaly or your mass storage device and open it and make sure all your folders show up that way. If not I would reformat the card and start from scratch

Basic question, but are you saving your Media Card settings? People often forget to save the setting changes they make.

Also remove the battery and make sure the SIM card and MicroSD are firmly seated and locked in place.

Turn phone back on.

Without opening Desktop Manager, connect phone with a USB cable/cord and try again. Make sure the mini-USB cable end is firmly seated.

Also check - is there anything on the card? If so, delete it. Reformat with your desktop PC.

Give us an update.

Thanks for all the responses. Here's a little more details.

My blackberry 8100 isn't on an Enterprise. I've tried it on two of my home computers and my work computer. I have admin rights on all three computers. I'm running the handheld software version that comes with the blackberry (4.2.0.42)

I've tried removing the battery. I just reformatted the card using the blackberry. I can't reformat using the desktop because it doesn't show up as a drive.

I'm using a 1GB card that works just fine with media manager.

The USB cable is seated correctly. Card is seated correctly.

I ensured that I am saving the settings. Even changed them to the wrong settings went back in and changed them back to the correct settings to make sure that the blackberry was seeing the right settings.

Currently my settings are :
Media Card Support: ON
Encryption Mode: NONE
Mass Storage Mode Support: ON
Auto Enable Mass Storage Mode When Connected: YES
Total Space: 968.49MB
Free Space: 968.40MB

When you first plug your BB into the USB cable, you may get a message on your phone about "insufficient power". Just press the escape key. You may also get a message about mass storage mode. Say "yes".

Works for me.

Thanks for the response.

I don't get any messages about "insufficient power" or about "mass storage mode".

The blackberry seems to work fine otherwise. I can use desktop manager and I can use it as a tethered modem. Just can't get it to show up as a disk drive so I don't have to use media manager.

I was really hoping someone would look at my settings and point out some obvious thing that I had set wrong.

Anyone else have any ideas why Mass storage mode isn't working for me? Or is there anyone else who hasn't been able to get it to work?

I just had the same exact issue! Leave the 8100 plugged and reboot your PC. When mine came back up, I could see it in 'My Computer'.

mine didn't work untill i formated the microsd card on the 8100. Then it worked fine.

I tried having the 8100 plugged into the computer when it rebooted. I've tried it on a computer with the desktop manager software installed and a computer without it.

I've tried reformatting the microsd card.

I'm beginning to wonder if my 8100 just isn't defective. I haven't had time to sit with T-Mobile on the phone, but I'm going to try and do that tomorrow.

Thanks for the replies.

I have an incredibly remedial question-what is the purpose of Mass Storage mode?

It basically allows the memory card to be accessed as if it was a drive.

And (also as a newbie) what is the point of - not - being in Mass Storage Mode?

Being the newbie that I am, when it asked me if I wanted to enable Mass Storage Mode I said no, because it said I couldn't see all my applications. I then told it not to "remind" me again. How do I go back and change my settings to allow Mass Storage Mode?

Options xxx8211; Advanced Options xxx8211; Media Card

~MrKyoo

I turned on Mass Storage mode, but now my 8100 isn't recognizing my SD card. Do I need to reformat? If so, how?

in the options for the media card hit the menu button and then click reformat

Thanks, I am up and running again!

Cool. Thx!