[Xperia Z3 Tablet Compact General] mottyengel:
They responded on twitter, let's see if they can do anything... Day 2 with no internet you said, did you just get it or have you had it for a while and it just stopped giving you data?

I wonder if walking into a tmobile store would help too...

---------- Post added at 03:53 AM ---------- Previous post was at 03:22 AM ----------

I just read through a pretty depressing thread. I'm posting the OP's final depressing post after finally getting through to a tmo vp. You can read through the whole thread too if you like. Seems like the battle is lost at this point, it's over, i just have to decide in a few hours when the store opens if I want to leave tmo over this and go to metro... I've been really happy with tmo up until now...

https://support.t-mobile.com/thread/86423?start=0&tstart=0

After doing some research I got a hold of a couple of T-Mobile's executive e-mail addresses and typed in detail about what is happening here hoping someone would respond. Today I received a phone call from the office of the Vice president of T-Mobile. I had a detailed conversation about the problem. They said that our device, the Sony Xperia Z3 Compact Tablet LTE SGP621 should have never worked as phone with a data plan and T-Mobiles network should have recognized the device as a tablet and not allowed it to work as a phone with a data plan for the few months that it did right away. He also stated that T-Mobile up until I told him was unaware our device existed. He actually had to look up the device. He then went on to explain how the network didn't register the IMEI of the device right away that's why it worked on their network for those few months until the IMEI of the device was registered and classified on their network as a tablet. He didn't actually admit it was the free data for life program but if you understand how network protocols work I don't have to state the obvious. So the bottom line is that T-Mobile doesn't offer the service we are asking for on our devices. The way the network is structured it uses the IMEI number to determine the devices classification and then only allows approved services to be used on that particular device. So the rules on T-Mobiles network work says "Smart phones" are allowed to make phone calls, surf the web, send multimedia text messaging ect. and "Tablets" are only allowed to have a mobile data plan and are incapable of making phone calls. Our device is a phablet but there isn't a phablet classification on T-Mobiles network. Even though our devices will work, have worked, and can work the way we want, it is irrelevant due to the way the network protocols have been written. The industry is somewhat at fault here by not having a specific classification for a device like ours. It really should just be classified as a phone. The world I live in, if a device is capable of making phone calls its a phone end of story. Phones make phone calls, this is kid stuff. So there is no solution to our problem and there never will be one as of right now. So the device is useless in the US for what we bought it for. I would have never bought the LTE version if I knew this was the situation. The service I'm willing to pay for is not offered by any US carrier according to T-Mobile. I find the whole situation funny at this point. Look at it in this perspective, the hardware of our device is identical to the Sony Xperia Z3 that T-Mobile currently offers, the only difference is the size of the screen. and the IMEI number that says its a tablet. You can actually flash the Sony Xperia Z3 operating system onto our devices thats how Identical the hardware is. It's just the IMEI number that defines the devices classification. Overseas this isn't an issue. I'm hoping soon there will be a US carrier offering this service, the first company that does I'm switching to. I think I'm just going to cancel the line and use WiFi for now. I can't believe I spent close to $700 for this device and it's now basically the $400 WiFi version. I'm keeping my T-Mobile account because I'm grandfathered into a very good rate and I'm hoping they will eventually offer the service. but I know for a fact our devices will never work the way they did because of our devices classification. They would only be able to work if T-Mobile changed the networks protocols that classifies the device as either a phone or a tablet, as long as they have that protocol in place we are out of luck. I really don't see them ever getting rid of this classification/rule system on their network. So if they ever do offer a "Phablet" device with the service it will be on T-Mobile branded devices only because those devices will have an IMEI that classifies it as a "Smart phone" or by that time they will have added the new classification of "Phablet".. Good luck to everyone that was having the same issue, I really thought we had a chance at solving the problem because our devices "WORK" on T-Mobiles network perfectly. If anyone knows a carrier willing to provide the service to our devices please let us know.