[X 2014 Q&A, Help & Troubleshooting] mercado79:
I absolutely hate creating yet another thread, but I've tried everything I can and I'm stuck. I was up until 4am (no lie) last night and been at it again for hours tonight. So... here are the symptoms.

Multiple bootloops/reboots at any of the following points:

1) "Preparing device" with the "Please wait" animation.

2) Force close: Unfortunately, Setup has stopped.

3) Force close: process.com.android.systemui has stopped.

4) Force close: Google search has stopped.

5) Bootloop at the bootloader warning message

Usually, the boot animation doesn't even start. Often, I'll see the "Bootloader Unlocked" warning message, then the Moto logo, then it cycles back through any of the above fail points. Sometimes, it'll stay on the bootloader warning message the whole time and then jump directly to the lock screen.

All of this started after unlocking my brand new Moto X Pure Edition and then attempting to use the "Multi-tool" to root. Or...maybe it was after trying to root using one of the Chainfire images. I can't recall. After doing so, wifi stopped working (wouldn't turn on). So, I tried (using the tool again) to flash back to stock. At that point things strange things started happening (force closes). I then tried flashing to stock and immediately flashing the OTA (all via fastboot). When I booted up, Lollipop setup wouldn't load, it'd bootloop, come back and maybe I could get to the next screen, but wifi would be dead. Or I'd get wifi to work, but it'd crash after accepting Google privacy terms.

So, after all of that, I decided I would just revert back to stock. At that point I tried a number of options including what I think is the likely best bet, [MENTION=5713057]SolarTrans[/MENTION] guide here. Oh, and somewhere along the line I flashed TWRP 2.8.3 and flashed one of the custom ROMs (LiquidSmooth). It booted, but was very unstable and also threw the same/similar systemui force close messages, occasionally would lose wifi or begin force closing like crazy. Makes me think I have a bigger issue since it happens regardless of ROM/firmware. I also tried graffixnyc's images. So... yeah... just want to get back to stock.

I've been doing this stuff with Android for many years. Not a newbie by any means. Completely comfortable using fastboot or adb command line. I'm just at a loss and feel that it's likely I'll have to send it back to Motorola. I can get into the bootloader no problem. Everything else is a toss up. The last time I flashed files via the SolarTrans guide, it eventually loaded up the home screen (after many bootloops), but wifi wasn't working and I got a strange Moto message about reverting the sensors firmware or update. I rebooted and it never booted again, so I erased cache and userdata via fastboot. That didn't help. I just flashed the original firmware again and it spent a good 20/30 minutes bootlooping before getting to the setup screens. I skipped everything. Then it bootlooped at the home screen.

Open to suggestions!

Edit 1:

Pretty much anything causes the phone to bootloop, but I was able to get a screenshot of the baseband, kernel, build, etc. It bootlooped, but worked the second time around. I think I just made things way worse by trying to turn on bluetooth. It's just bootlooping over and over. Gonna try and get some sleep!