[Nexus 7 (2013) Original Android Development] ksaves2:
Much obliged for pointers

Hi,

Have a flo and a deb/LTE version one of each. Haven't been back here as I ran the Flo on CM for the longest time without issue or need to update

and acquired the deb/LTE 'cause it was cheap. I'm a script kiddie but have whacked and bricked both devices innummerable times and brought them

back with Ubuntu and adb. Can root 'em in seconds with auto root.

After this current two week loading/testing binge with both flo and deb I've succeeded in getting flo up with Lineage 7.1.2 with the minimal Gapps

and Deb can do the same. The thing with the Deb/LTE Nexus 7 2013 I found if I stuck a FreedomPop Data only SIM in under Marshmallow, I could load TalkaTone into it and it nicely does VOIP/SIP cell calls from the N7 2013. I believe a lot of folks were ticked they couldn't just drop a regular phone SIM in and do regular calls. Yes the calls consume the 2Gb data allotment but I'm fine with that as I want just the utility to do calls intermittantly.

A neat dog and pony show if you ask me after reading the slamming posts about the N7 2013 not being able to make cell calls with a standard

phone sim. Seems folks missed it was a "data only" tablet. Yeah, well it can be trained to do tricks!

The call quality is quite good after diddling with the Talkatone parameters. I believe on WiFi, the calls are free as they don't use data.

Oh, FP uses ATT towers and the ATT compatible version of the N7 2013 was the LTE unit. I suspect this is why this works when I am

operating it as a cell phone. The little indicator in the upper right is annotated with LTE when the cell service is active and WiFi is out of range.

I can shut off the FP Datasim/cell and calls will still go out over WiFi. Therefore data is not consumed for calls while on wifi.

I've also "locked down" the N7 Deb/LTE so it doesn't allow useless apps to update or do background junk while on cell/data and needlessly consume the

data allotment. That is a very big complaint on FreedomPop when unsophisticated users sign on. They end up with a large bill unbeknownst to them. I have to add I'm using a GSM FreedomPop Data sim card here. ATT (Yeah I know, less bars in more places!) uses GSM

Getting to my question: I usually run Multi-Rom to play with multiple Roms and if I like one I can use it and zap off the old one.

Problem is I found out with the 6.0.1 Marshmallow version that runs reliably on the Deb/LTE, if I load multirom it wants me to "upgrade" TWRP and indeed

it "downgrades" me from 3.1.1 to 3.0.0. Problem with that is none of the new 7.1.2 ROMS can be loaded from 3.0.0. I understand that is a quirk in 3.0.0.

I also found out that TalkaTone wouldn't run properly in the latest 7.1.2 Lineage nightly. I would have whacked Marshmallow off, put TWRP 3.1.1 on and rooted the whole thing and ditched MultiRom if I could get TalkaTone to work in 7.1.2 Roms.

Is MultiRom essentially incompatible with 7.1.2 ROMS now with TWRP 3.1.1? Sure was nice to have dual boot so I could always have a reliable

system to boot to if an "experiment" failed. Also if the "newer" system was to my liking, I could free up space by converting the "new" ROM to my

primary internal ROM and erasing the old one. Any thoughts on this? Kurt