Look around here, there are several threads about botched updates, which appears to stall the tablet where it won't boot past the splash page. From reading the threads It seems that most of these were MV7A- version software, but some were MV7B- version ending in 422M or earlier.
My E-7 has s/w version MV7B_31D41_422X
Can anyone else with this version report and confirm a successful upgrade for 422X? There was one person who had 422Y who appears to have updated successfully, so I am cautiously optimistic, but don't want to take the chance until I know for sure that the update will work with 422X.
I have purposely kept my OTA LTE connection turned off to avoid the update until I can confirm that my s/w version updates without the previously mentioned crash issues.
I don't know what version I have but I too am stuck with an expensive paperweight now due to their update! NOT happy with Verizon at all right now!!
I don't have any letters after 442. I still wouldnt call this a successful update. My tablet has new problems daily the biggeast problem is sd card premission today youtube, netflix and other video sites stopped working both on wifi and 4g. Typing is a pain as words just add themselves now. I'm going to root mine and install different OS.