No one from Blackberry or T-Mobile wants to take responsability for their own product.

I own a 7100T and have worked on it for over a year. It has over 900 names and addresses on it, critical to my business, and a full calendar of my radio and TV interviews. I back it up nightly on two different computers.

Two days ago, the screen starting getting dim, and finally became all lines and disappeared. I called T-Mobile, and they had me remove all old software, install new software and load my old stuff from my backup. This ended fours hours later at 1 am EST.

The next morning, Thanksgiving, it happened again. Someone said my files are "corrupted" and i cannot recover any of my backed up data. They said i should have used "Outlook". I am literally in tears, and my business is dead. Can anyone help?

If anyone does help me to save my address book and calendar, I will reward them with national publicity worth THOUSANDS.

Does the device power on? Is your file back up corrupt or the addresses and calendar on the device itself? If not the device does the desktop manager recognize the 7100 so you can sync with Outlook?

I disagree. T-Mobile will definately take care of the any hardware issues if the blackberry is indeed defective and the unit is still under warranty. Both T-Mobile and RIM will do their best to get the blackberry functioning to manufacturer's specifications. What neither T-Mobile or RIM is responsible for is your personal data. If it didn't come with the BlackBerry to begin with (we're talking about the data), they should not be responsible for it. I think it's unfair to tell somebody else that they are responsible for your data.

Now I don't have enough information to tell you if your issue is corrupt data or something else but I can give you some suggestions on trying to determine the problem and possibly getting some or all of the data back.

Perform another Application Load process and choose to erase all data and erase all installed applications. This will wipe all of the blackberry data on the handheld. So you'll be starting fresh. Kind of like formatting a hard drive and reinstalling Windoze. Use the blackberry for a few days without restoring your data. See if the issue reoccurs. If it does, it's most likely a hardware issue. If it's under warranty, T-Mobile should be able to get you a replacement unit. If it works fine without restoring your data, than I have a feeling you might have some corrupt data that's causing the issue. I know it's probably going to be difficult for you to run this experiment because it is time consuming, but it's a good way to find out if it's hardware or your data that's causing it. There is the outside chance it can be the handheld software that's causing it but I think it'll most likely be hardware or your data.

Other option is if you can find another blackberry that you can borrow to try. Restore your data to another blackberry. Try using the other blackberry for a few days and see if the issue occurs on this new blackberry. If it does, it's definately an issue with your data. If not, I would think there's an issue with your original blackberry.

Now it's not all over if the issue is in fact due to corrupt data. You mentioned that you perform backups of your blackberry nightly. I'm sure if you go back far enough, you could find a backup file that's not corrupt. Other option is to go to Backup & Restore > Advanced and do a selective restore. So just pick which databases are really important to you and restore only those ones. I imagine the Address Book, Calendar, and Messages databases would be the ones you want. Ignore the rest. Hopefully the corrupt data does not reside in one of the databases that are important to you.

One more thing I would like to add.

Don't keep all of your eggs in one basket.

This is a good lesson for you to learn. Data is volatile, regardless of what operating platform it is on. You can't trust Windoze, you can't trust Java (which is what the blackberry O/S is based on), you can't even trust Linux 100%

I do hope you are able to get your data back. If not all of it, at least most of it.

Good luck.