[X Style (Pure) Q&A, Help & Troubleshooting] Loppy32:
Wifi is Shot after downgrade

Hello! I am in a bit of a pickle that is a tiny bit beyond my expertise. By tiny I mean a lot.

I am running a XT1575, US Moto X Pure. Around a month ago I unlocked the bootloader, flashed TWRP, and rooted using this tool. :

http://xdaforums.com/moto-x-style/development/tool-windroid-universal-android-toolkit-t3206883

I ran this 6.0 ROM without updating TWRP:

http://xdaforums.com/moto-x-style/development/rom-stock-rooted-debloated-x1575-6-0-t3262242

I am selling the phone so I decided to return to stock Lollipop 5.1.1 and use the stock updater to return to 6.0. I returned to stock using this tool:

http://xdaforums.com/moto-x-style/development/windows-tool-moto-x-style-pure-edition-t3199905

In the last thread I linked, "Retrun to stock tool," people downgrading from MM like me were having to flash the modem and bootloader manually otherwise Wifi was broken. I first booted without doing this, and sure enough Wifi was broken. I then reset the phone, booted into "download mode" and flashed the modem and bootloader in ADB. I got these files from the "Return to stock tool." The phone boots and shows me the setup screen. When I choose a Wifi network, it shows the ones near me correctly and allows me to enter a password.

Once I attempt to connect, it enters the "Checking Connection" screen. It sits there until it shows what looks like a webview with the error "net::ERR_ADDRESS_UNREACHABLE"

I can skip connecting to the internet and the rest of the setup. The wifi signal bars do indicate it is connected. If I enter Chrome and deny to sign in, it cannot load any webpages. It shows the error "DNS_PROBE_FINSIHED_NO_INTERNET."

In bootloader mode the device still reads as "UNLOCKED Status Code: 3 Software Status: Modified." MOST curious though is "Baseband: <not found>" No baseband? I have not seen this problem anywhere on this forum despite hours of searching.

The "Restore to stock" tool should re-lock the boot loader, but I have no errors because the tool crashes before I can see them. I will run the "flash-all.bat" from the tool from a command prompt opened in the folder to see if that allows me to retrieve error codes.

It also displays a voicemail notification despite having no SIM card. Somehow it thinks my number is still associated and remembers that I had voicemails? I am on AT&T if that is relevant.

I believe that my modem is somehow corrupted? I tried using the tool again and have gotten the same results. I reflashed the modem, nothing. It shows a connection in the status bar but cannot connect to anything. Any help would be greatly appreciated.

What I would prefer to do is use ADB to wipe everything and reinstall EVERYTHING. But I assumed that is what the tool does? If anyone could show me how to do that manually surely that would fix it?

EDIT: I ran the tool again, this time from a command prompt window I opened in the folder containing the tool. Upon setup I chose a different network, my current phone's hotspot. Looks like this are running smoothly now. The tool did not crash this time. Perhaps I followed incorrect procedure. Perhaps it was my wifi, despite my desktop connecting perfectly. Fingers crossed I don't have to find out. The 6.0 update is downloading now, I will update the post once it installs.

EDIT 2: The update failed. It booted back into 5.1.1 unharmed. Download Mode reads "Device is UNLOCKED. Status Code: 3." Baseband does have a version now. It is "m8992_1255309.10.01.68R FSG-8994-01.71_SUPER_NA+ATT"

I am going to try relocking the boot loader and installing the update.