In this how-to, I am going to outline steps which will rease ALL data on your handheld device with the exception of the IT policy.
This process came about when I had an Application Error 250 and was prompted for reset on my device. It would boot and display the error. This would go on endlessly. RIM walked me through the following, "interesting" but functional proceedure.
a. The Blackberry os file found on the Tmobile upgrade site named "8100_Pearl_126.96.36.199.exe"
b. The Desktop Manager Installation CD.
1. Make sure your device is NOT plugged into your desktop.
2. Install the Desktop software (desktop manager) that came with your 8100.
3. Delete all files in the default BB OS directory: C:\Program Files\Common Files\Research In Motion\Shared\Loader Files.
4. Install the 8100 device OS (run "8100_Pearl_188.8.131.52.exe")
3. Verify that your VENDOR.XML file located in: C:\Program Files\Common Files\Research In Motion\AppLoader, is the original. I have included the original in this post.
4. Remove your 8100 battery.
5. Open your Desktop manager and make sure "disconnected" is displayed.
6. Open your application loader and click NEXT if prompted.
7. Regardless of what is in the connection type, keep an eye on this text box as you perform the next step. (Timing is everything)
8. With your battery OUT, and app loader displaying the connection type, Plug the 8100 into the USB cable and WATCH for the communication type to change to "Unknown..."
9. As soon as you see the type "Unknown..." Click NEXT.
10. The prompts that follow should be self explanatory and may be different depending upon the state of your device.
11. You will come to a point where you NEED to choose what applications to load back onto your device. Choose all that apply.
12. IMPORTANT: Once the applications load process begins, Re-Insert your battery before the first device reset.
That's all I have, I have only done this twice to my BB 8100 and this should be an operation of last resort. I claim absolutely NO responsibility for what happens if things go wrong during this process.
RIM Recomends the following to ensure this process works:
1. Do not use a USB Hub. Plug your device, when appropriate, directly into the computer.
2. Do NOT use a Laptop for this proceedure. A desktop will ensure that you do not loose power during this operation.
I have included everything I can think of here, but I will try to answer questions about this process.