Thought this could be helpful here... This is specifically for someone who upgraded to the earlier OTA to get their system to 5.5.893 with updated radios/kernal... then is having trouble getting from there to 5.7.893 - The latest update, has more tweaks for system, battery life and updated LTE radio file. Some folks are losing webtop and having other problems along the way... so here's the process that worked for me:
Alright Boys and Girls who are still having trouble.. Those of you who, like me, were already updated to the radio/kernal from 5.5.893 or 5.6.893 but didn't have their bloat because of ROMing and the like, or got through the process and lost webtop along the way.. PAY ATTENTION. I just completed my upgrade to 5.7.893 with Full working Webtop, updated radios, the whole enchilada. Every ounce of credit for this process goes to the likes of 0mie & dch921 who provided the necessary files and instructions, WesternClimax who came on here to just help spell out the process and link the files together, and some others (sorry if I'm forgetting anyone). Point is.. I just got through it on my first try, thanks to these guys, and along the way I chronicled the process in detail because there are still some folks who are apparently having trouble or just not that great at following directions

Some steps might seem superfluous but I like to be thorough and IT WORKED SO DON'T KNOCK IT

Here's my journey over the last 40 minutes or so:
1. Used One-Click Fastboot Restore and Root for BIONIC to flash back to stock 5.5.866. Booted up. Used R3L3AS3DRoot v2 to Root and apply ForeverRoot script.
2. Installed Bootsrap app. Booted into CWR.
3. In CWR Went to Install from SD -> FULL CWR 893 UPDATE which dch posted.
4. Rebooted. Checked System to verify that I was on 5.5.893. Checked that Superuser was still present so I knew I had root.
5. Redownloaded and installed Root Explorer. Used it to check the mount_ext3.sh file to verify that the ForeverRoot lines were still present. The last line "chmod 4755 /system/app/Superuser.apk" was NOT there, so I added it back in. Saved the file and exited.
6. Power Down. Boot into Stock Recovery. Installed from sd card the file titled Blur_Version.5.5.893mr1.XT875.Verizon.en.US
7. Reboot. As in Step 4, verified system was now on 5.6.893, and that Superuser still present and functioning. At this point took note that Webtop Version read Unavailable.
8. Power Down. Boot into Stock Recovery. Installed from sd card the file titled Blur_Version.5.6.893-5.7.893.XT875.Verizon.en.US
9. Reboot. As in Step 4, verified system was now on 5.7.893, and that Superuser still present and functioning. Webtop still Unavailable.
10. Power Down. Used One-Click Fastboot Restore and Root for BIONIC to flash back to stock 5.5.866. Used R3L3AS3DRoot v2 to Root and apply ForeverRoot script.
11. Rebooted. At this point not even sure why.. just felt like a good idea (lol).
12. Power Down. Boot into Stock Recovery. Installed from sd card the file from top of first page of this thread where it says: Flash stock recovery of full Blur_Version.5.5.886-5.7.893.XT875.Verizon.en.US
13. Reboot. Verified system was now on 5.7.893 with updated Baseband Version, and that Superuser still present and functioning. Webtop IS BACK

14. Danced around the room joyously and smoked a victory cigarette.
Alright, enjoy. Again I don't want or deserve any credit, I'm just summarizing what I learned thanks to people smarter than me in this thread, and wrote it up in detail.
ADDENDUM: Booted back into CWM. Wiped cache and dalvik (seemed like a good idea) and installed file from first page [MOD] Webtop Via HDMI Without a Dock. Booted up. Now have full Webtop mode over the HDMI cord to my 47" LG TV. Freaking awesome! Thanks again to 0mie, dch, everyone!
Also if you are stuck at a different spot in the process let me know or check out the main thread linked to in OP, people have been working at getting others unstuck at various stages
