[Verizon Motorola Droid Turbo Q&A, Help & Troublesh] ChazzMatt:
The very bottom is most important. The rest is working through my reasoning and how some of your answers dashed my theories. ;)

We'll come back to this in a minute. I admit I may have glossed over some of this initially but you repeated it and it stuck the second time. Thank you. Repetition does work for me, especially when presented slightly differently. I was more focused on the HTC working and the Droid Turbo not working on your SIM card, and why. I missed that one of your SIM cards works great with the Droid Turbo.

OK, my concern was either they may be using some strange frequency for your CDMA that that Droid Turbo couldn't handle or they may be cutting out CDMA in your area.

I know you have an HTC One M7 that still gets CDMA, but I thought maybe it was an "India" version that could handle unorthodox CDMA frequencies that U.S. phones cannot handle. (Your link to specs of the HTC M7 dashed that theory. It uses 800 MHz for CDMA).

Here in the U.S. for a few years I was a subscriber to regional CDMA/LTE service that used an uncommon frequency for CDMA. All their phones had access to an extra CDMA band that Verizon phones did not have. I thought that might be the same in India...

Or that your carrier was using a mix of "regular" CDMA frequencies with unorthodox and only the uncommon were left running (for now) as they shut down their CDMA system.

It would explain why the HTC would work (because it was perhaps manufactured for India) while the U.S. would not work.

I specifically bought three Moto XT1225 (known as the Moto Turbo XT1225 in India) from other countries because they have all the U.S. AT&T LTE bands (2, 3, 4, 5, 7, 17). Whereas the Droid Turbo XT1254/U.S. Moto Maxx XT1250 only have 2, 3, 4, 7, 13. Doesn't have LTE bands 5 & 17. And AT&T doesn't use CDMA. For people using the Droid Turbo on AT&T, they will only get LTE in areas with LTE bands 2 & 4, and will have to drop down to HSPA in areas where AT&T uses LTE bands 5 and 17. LTE 17 is used a LOT by AT&T in Atlanta where i work.

I thought something similar was happening to you, if certain CDMA bands were being discontinued in your area, but you have no other frequencies (like HSPA) to drop down to.

However, since one of your two SIM cards (both same carrier) works just fine with the Droid Turbo, then that's a dead end.

Yes, but I asked how/where you bought the Droid Turbo, for a reason. You answered, but this was my theory...

When I bought my three XT1225, one was already "unlocked" Motorola factory model from Mexico. Two of them however were Claro carrier models from Puerto Rico. They are locked to Claro, would not normally work on other carriers like AT&T -- but the eBay dealers unlocked them before shipping them to me. They have to be unlocked by special code before they can be used on other carriers. I thought perhaps the CDMA portion of the Droid Turbo was that way. I know the LTE is unlocked, and the HSPA, but Verizon has a history of locking CDMA to their network.

Again, that's now a dead end since one of your two SIM cards works just fine with this Droid Turbo.

My Mexico XT1225 was the same way -- no carrier branding, totally unlocked.

According to that link, your HTC M7 only has 800Mhz for CMDA, but the Droid Turbo also has that.

Does this new SIM -- the one that works with the HTC, but not the Droid Turbo -- also work well with your Moto Droid Razr, Samsung Galaxy Stellar? Is it just the Droid Turbo that has issues with the new SIM?

I assume the old SIM card, the one that works well for the Droid Turbo, also works well with your Moto Droid Razr, Samsung Galaxy Stellar?

I wondering if your carrier has changed something in their SIM cards, if the OLD one works fine for all phones, but the new one does not -- especially a U.S. phone?

Try this anyway on your Droid Turbo, can't hurt:

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