[Verizon Motorola Droid Turbo General] ChazzMatt:
Good news, bad news.

First, the BAD NEWS...

Well, with both the Puerto Rico and Mexico Moto Maxx -- once rooted and scanned with QXDM software -- does not show any other LTE bands than 2, 3, 4, 5, 7, 17. LTE band 5 was the semi-surprise, because although it was there in the FCC tests (and LTE band 3 was not), LTE band 5 is not listed on the "official" Motorola specs.

But if LTE band 13 was there (already enabled), it would show on Line 6828 in the NV band calculator.

If LTE band 13 were added to those bands (2, 3, 4, 5, 7, 13, 17), the number would be 65,726.

GOOD NEWS

So, if it's not there...Can you enable CDMA bands and LTE band 13? Theoretically, yes -- using QPST and QXDM software, and/or perhaps the "Secret Menu" app. There's a couple of threads on XDA showing how Qualcomm Snapdragon chipsets support ALL bands (CDMA, GSM, HSPA, LTE) and manufacturers just use software lockdown for what they don't need or want. This was how a couple of years people were able to get an LTE band working on the LG Nexus 4 for T-mobile, when the Nexus 4 didn't officially support LTE. Some people have bought Samsung phones in one part of the world, and turned them into "global" phones to use elsewhere.

HOWEVER, and this is a big however, it's not just unlocking the hardware. The modem firmware also has to support it. Some people have tried to unlock additional bands -- like LTE band 20 -- on the Moto Maxx for Europe and although the NV band calculator shows the correct number, they still can't receive that LTE band.

Where you would be in luck is the Droid Turbo DOES have LTE band 13, and the Moto Maxx is the "international" twin. To keep down manufacturing costs, entirely possible everything is identical -- which would mean the Moto Maxx can supports everything the Droid Turbo does, and vice versa. IF you root and unlock those bands.

In QPST/mzTool, here's this 2G/3G bands screen I can see on my Moto Maxx. Shows what is already enabled:

now look at the next tab:

Do you see how I can choose AT&T, Verizon or mix and match what I want? :cool: I did NOT save these values. I kept what was already enabled, as I was more interested in LTE bands than changing 2G/3G bands. But I looked here first, to see if LTE bands were shown in QPST/mzTool. They are not, but you still need QPST to then use QXDM for LTE (true 4G bands).

(The screenshot above was when I clicked on "AT&T". I also clicked on "Verizon" but didn't take a screenshot. I did not SAVE either choice, I kept what was already enabled on my phone. But I confirmed I could also checkmark other items to add to "AT&T" or "Verizon".)

This is what I am talking about. You use QPST for the 2G/3G protocols, and QXDM (with NV band calculator) for the LTE (true 4G) bands. However, just using QPST and QXDM is not enough, if the Motorola modem in the phone does not support those bands also. This is probably why people have not been able to enable European LTE band 20? But since the Droid Turbo/Moto Maxx have identical DNA, seems it would be better chance of activating Verizon bands on unlocked, rooted Moto Maxx.

Now, in the app called "Secret Menu" I can access THESE settings:

The default choice on my Moto Maxx is LTE/GSM. But what if I chose LTE/GSM/CDMA? Would that turn it into a Droid Turbo? Especially if the CDMA and additional LTE bands were unlocked in QSPT and QXDM?

Interesting questions. ;)