Has ANYONE tried to flash the "M" ROM onto the Lenovo Yoga Tablet 3 YT3-850L? I purchased the "L", thinking it had a built-in phone (as did a similar, older Yoga Tablet 2 I saw in India). I DO have a tablet, the Samsung SM-T325, which DOES have native phone support, so I quite appreciate the OP's interest in this, but am inclined to agree that the "L" variant is unlikely to support voice just by swapping ROMs. Maybe I'm mistaken, which would be just great. I peeked at the Russian Lenovo site, but can't navigate it as I read no Russian.