[X Style (Pure) Q&A, Help & Troubleshooting] jtflynnz:
So I ran into an issue with my locked-bootloader, unrooted MXPE 2015. I am running stock Marshmallow. I will note that I don't think this is really a bootloop, it seems to boot for a few seconds before a crash/reboot. I am able to boot into recovery, and am even able to trigger a safe-mode boot during the few seconds of uptime, where the safe-mode boot does not crash/reboot. I also suspect a Factory Reset will fully resolve the issue, unless the factory image got corrupted somehow... I do apologize, this is a long post.

I was essentially trying to make a backup to do a factory reset. Long story short, I was trying to use an app called Easy Backup that consolidates sms, mms, call logs, and that I had used in the past without issue. However this time that was not the case. I have a 16 GB version with an SD card, but have used ~8.5 GB of the internal free ~9.8 GB (I can't remember the exact numbers) and I constantly run into low storage situations with app caches and install sizes when doing updates. Normally clearing all app cache data is enough to get the downloads to go through.

So I go to run this backup app (with the default storage directory set on my external SD card) to have it uploaded to Google Drive, and after it gets close to finishing, I get errors about running out of storage, and then a cascade of apps crashing, and then a reboot. After the reboot, I check my Drive folder and see that the file never uploaded; the storage seems to have cleared up, but I clear my cache and the backup app's storage just in case (though it had already pretty much cleared back to the 8.5 GB used from before). I also notice some oddities like random settings suddenly having changed in certain apps. But I stupidly think no harm has been done, so maybe retrying after clearing up Cache space will work. So I tried to get the backup to run again after verifying the upload and storage location options (SD Card -not internal - and G Drive), but the same storage and crashing thing happens. It "finishes" the backup, and after a few seconds of the phone hanging and lagging, it reboots again. This time after the reboot I notice that apps are missing from my Nova Launcher home screen (but still in my app drawer), and go to restore a backup of Nova, except the overview and home buttons don't do anything, and then see that the notification shade can't be pulled to open the settings toggles. Then it suddenly reboots again. And now, unless I boot into safe mode, I get a few seconds of of it sitting at the home screen before the phone reboots. This same nav button and settings shade behavior are persistent in safe mode.

I guess my question is whether or not there is a way to pull off my SMS, MMS, Call log data (maybe in ADB?) while in safe mode. I have been trying to uninstall extraneous apps in Safe Mode to see if I can break the rebooting cycle, but no luck thus far.

On another note, should I go ahead and do a factory reset or should I contact Moto first (I have a Moto Care policy, though I've heard horror stories). I have never had this issue with this app before,

Any other recommendations and tips? It almost seems like the app tries to cache on my internal storage before moving to the destination folder, and in a low storage situation it seems to have corrupted something in the actual OS as well as my other apps.

Thank you, I appreciate your time!