The online version has been troublesome for some so when that happens we try the other methods.
Are you sure it needs it? I see a date of Jul 5, 2012 so that's pretty old.
Be sure to read the guides on that page.
I have tried multipul times to upgrade the firmware online and it hangs up at step 4. Any suggestions?
Hoarding photos on your phone?
Those picture are hogging memory and could be slowing down your phone.