[Android Q&A, Help & Troubleshooting] DroidX2:
Hey all! After nearly a month of no service with AT&T, I finally decided to go with Straight Talk for service with my W3D. I can also confirm that Straight Talk does work. Not sure what's up with AT&T system since the device can clearly run on their towers, However, even though the device has the frequencies, it will not run correctly on AT&T.

In case anyone wondering how to set this up when you already have an account. Here's what I did.

But First:

W3D supports the following bands: ALL INFO IS ACCORDING TO MTK ENGINEERING MODE / BAND MODE

2G - 850 / 900 / 1800 / 1900

3G - 800 / 850 / 900 / 1900 / *2000 (actually 2100, which runs AT&T's HSPDA+ network, or in simpler terms, 3G+ or 4G)

4G - 1 / 3 / 7 / 17 / 38 / 39 / 40 / 41

TD-LTE and TDSCDMA is a China only standard and therefore cannot be used here in the US.

W3D Carrier support - Information subject to amendment. All statements are from previous research gathered, but may contain incomplete data. Please investigate your individual case.

AT&T - W3D supports - 2G (850/1900) 3G (850/1900/2100) LTE(4G) - 17

T-MOBILE - W3D supports - 3G (1900)

VERIZON - W3D supports - N/A

SPRINT - W3D supports - LTE(4G) - Band 41

First, if you want to keep your number, don't cancel your current account, you will need to keep it open to transfer your number. Once I bought the "Bring Your Own Phone Activation Kit". It includes a Regular sized SIM, Micro SIM, and Nano SIM. The Micro SIM is attached to the Regular SIM, you must pop it out to use it. Took me a minute to find that one out, and I almost lost it, so figured I'd share that with you all.

From there, I followed Instructions as given in the package. As they stated, once my original SIM was no longer getting service, I placed the Straight Talk SIM in the device. Turned the device on, and proceeded to input the MMS settings. Oddly enough, the only difference from AT&T's APN Settings is that the APN Name is RESELLER instead of NXTGENPHONE. Everything else is the same. After inputting, I restarted the device and everything was fine. I saw 4G for the first time on my device.

There is one weird thing though. When placing a call, it drops to 3G. The call still goes through, but I think that may be due to the device only supporting the main AT&T LTE band. For other phones, the support bands probably kick in to maintain the LTE. It goes right back to 4G afterward, but still strange.

Anyhow, this is an area I wasn't able to test during my review. However, the 4G seems quick, and Gatekeeper posted his speeds, which while not on par with the current crop of LTE Band hogs, it still gives great speeds. With only supporting one band, I'm sure the coverage will be a little more spotty than other devices.

Also, I noticed that sellers of the device are using an outdated spec sheet, such as OPENYOUREYES. While I'm sure it's not intentional, their sites states the device supports CDMA, which will be misleading to many customers. To all reading, the W3D is a GSM ONLY Device. It may work on Sprint due to the one band of LTE it supports for their network, however, the supported band is only a support band for Sprint's LTE network. The supported Sprint band is not the main LTE band for Sprint.

Also, in MTK Engineering Mode, under BSPTelephony, there is an option to switch 3G access from one SIM Card to the other, or turn it off completely. No option seems to allow for both the access 3G at the same time.

One thing to note about Straight Talk to those that want to keep their number. If your account gets turned off, you may lose your phone number. I saw this message while setting up the account. Just wanted to give a heads up to those that may have missed it.

Hopefully, I helped out somewhere. If anything new comes along, I'll be sure to post.