There's a number of upgrade attempts on the Bolt already with some curious results. I haven't seen enough hard data though to tell me that it's a prudent method, and some data that tells me it's not advisable. Until all the data is in, my personal & professional opinion is that the Roamio tools should not be used on Bolts that are going to be actually used outside of testing/experimental/development purposes. Nonetheless, there is likely a way to upgrade the Bolt safely but those with the skills don't have the interest, money, and/or data. So this thread is for developers or those helping the developers bridge that gap.