How to upgrade your Blackberry

If you feel your blackberry performance was runing  slow and felt the need to upgrade your OS on your Blackberry, here are steps by step how to do it, There are 2 way to upgrade firmware (OS) your Blackberry :
Basic
1. Download the latest OS for your device from the official Blackberry website (Make sure the OS for your blackberry type)
2. Remember please Backup your data before upgrade your blackberry, you can backup your Blackberry data with using Desktop Manager.
3. Install OS that you downloaded earlier in the No.1 (. Exe files) to your PC
4. Delete the file “vendor.xml” (C: \ Program Files \ Common Files \ Research In Motion \ AppLoader)
5. Install the new OS was downloaded to your BlackBerry with a way to connect your BB to your PC, then use the Desktop Manager.

Advance
1.Download the latest OS for your device from the official Blackberry website (Make sure the OS for your blackberry type)
2. Backup your data using the Desktop Manager
3. Backup applications that you have previously installed.
4. Install OS that you downloaded earlier in the No.1 (. Exe files) to your PC
5. Delete the file “vendor.xml” (C: \ Program Files \ Common Files \ Research In Motion \ AppLoader)
6. Download JL_Cmdr from here.
7. Run your JL_cmdr and Wipe your Blackberry using JL_cmdr,
8. Install the new Blackberry OS to your handheld using Desktop Manager> App Loader.
9. Restore your third-party application.
10. Restore from the backup data that was created at No.2

Here is  some instruction for wiping your BlackBerry using JL_cmdr:
1. Connect BB to PC using USB cable
2. Run JL_Cmdr, select the option no.4 – Wipe Handheld
3. Type “blackberry” (without the quotes) to remove the entire system blackberries.
After this, the Blackberry will reboot, and there will be a white screen with the words ‘507 ‘error. Do not panic, this is so, because the OS was not there. After that you can proceed new OS instalation.