I have the XV6800 from Verizon and I just upgraded to WM 6.1 so I thought I'd offer a few notes.
First, you can get the ROM update by going to http://support.vzw.com/phones/index.html?p=3411. At the bottom of that page there's a "download software update" link. Follow that and it should take you to http://pcdphones.com/phone_downloads.aspx?bid=89&cid=1&mid=287&carrier=Verizon%20Wireless
Then you need to find the MR1 Update, agree to the terms and download it.
The zip has 2 files, a ROM upgrade utility that does all the work and a word document explaining the procedure.
When I did this, it went smoothly and I had no issues. (it totally writes over everything so remember to back up any stuff you want to keep)
The only issue I did have was once I did this my device no longer connected to verizon's network. I got an "unable to authenticate your device" warning when I tried to make a call and a "network failed" trying to connect to the data plan.
To fix that, I first went to a Verizon store and they took it behind the counter and said "its fixed - try it". I tried synching email and it worked so I assumed it was fixed. On the way home from the store I tried to make a call and got the same error. So I tried to reprogram it myself using *228 and it said it was successful but didn't fix the problem. I then called #8899 and explained the situation to them and they told me they'd push out another security certificate so as soon as I disconnected from the call I was to reset the device.
I did and that seemed to work. I'm not sure if there's another way to get the device security certificates (whatever that is) pushed out without talking to #8899 but it was pretty easy... the call took 3:21 according to the call log.
Hope this helps...
Mark
