Database Info

New to Inspire? YOU NEED TO READ THIS!

I had the Check Mark under the "H+" icon like a lot of other veteran AT&T users here. I had no data service due to an incorrect APN. I bought the Inspire off-contract at a Corp store & put in my SIM from my Captivate. I called Premier Support and this was what I was told:
"The Inspire uses the 4G network and your IMEI isn't provisioned on our network. We can register your IMEI to use our network but you'll have to select a new data plan. If you choose to enter an APN manually, when our system audits the network, your IMEI will show as a "non-qualifying" device and you'll immediately be placed in the 4G 250MB data plan. I can put in a ticket stating that you request your IMEI be allowed to use our 4G network on an unlimited basis, but there's no guarantee that it will be approved. If it is not approved, you will have the option to remain on the 3G unlimited plan with your 3g-only device or 'upgrade' to a 4G plan with your Inspire. You will be contacted with our decision."
There apparently is no option to use the Inspire solely on the 3G unlimited network. To guarantee that I only use the 3G network, I'll have to go back to a 3G-only device - IE my Captivate.
I will wait to see what they come up with but my fall-back will be to return the Inspire and pay the $35 restocking fee & pursue my options with a class-action lawsuit.
This is going to have me cancelling the 5 lines I have with AT&T and switch to Verizon. Even if I can't get unlimited data with Verizon and it ultimately costs me more, I'd switch just to spite AT&T and deny them of my monthly $289. This is COMPLETE BS on AT&T's part!
EDIT: I forgot to mention that between Sunday and Tuesday morning, my Inspire used over 500MB on AT&T's network with all the Google & HTCSense.com syncronization! This is in ADDITION to the data I transferred over my 802.11n network at home! They have geared these devices to absolutely SUCK data down their pipes with their bloatware. I totally feel an anti-trust/consumer fraud lawsuit in the making!

I would suggest trying to call them back. I switched from a captivate to the Inspire and had the same issues with data. Called their support and told them to keep my unlimited data and 5 minutes later they had me all squared away unlimited 4g data and all, I think you talked to a ****ty rep is all.

Yeah I stayed on the $30 unlimited plan no problem. They told me they switched it to 4G and it would still be the same price and unlimited.

gtg465x said:
Yeah I stayed on the $30 unlimited plan no problem. They told me they switched it to 4G and it would still be the same price and unlimited.
Click to expand...
Click to collapse
glad to see your using an inspire GTG

Same here. Bought the phone at Costco. Put my Captivate SIM in and no go. Went to my local corp store and the guy told me I had to change my data plan since the Unlimited plan would not work based on a Memo the store received last Friday.
After I argued a bit I told him to switch me to the 2GB plan. He then noticed in the computer that I could stay on the unlimited plan and be on the 4G network.
I would call back ATT and demand you stay on the unlimited plan that you have been grandfathered into or you will cancel and leave. They don't want to lose a account that spends that much monthly.

I really hope you guys are right. I've been with AT&Greed for over 4 years now. I will try tomorrow at the Corp store where I bought it and update on here tomorrow night.
I want to make sure you all understand I'm not trying to steer anyone away from the Inspire. In fact, I actually forgot how much I liked having an HTC phone (had the 8125, 8525, and Fuze previously). Sense has been the $hit since I loaded the WinMo 6.5 ROMs! I liked the Android experience on my Captivate (minus TouchWiz) but really like what HTC has done with Sense on the Inspire. My quibble isn't with HTC, but with AT&Greed on their data plans.
I'll update tomorrow.

You have to have a "4g" sim card placed into your inspire. There is no reason for them not to let you you keep your unlimeted data. Its a different soc code for the data as well. The idiot Rep who you talked to on the phone is the single reason why att has a bad name. Im actually an att store manager and have had att years before I started with the company. Go back to the store you bought your inspire from and tell them to register your imei to the account and to give you a "4g" sim card. The system we use will make them switch the data plan as well but don't worry... you don't have to give up your unlimited. If you have any questions ill try to stay posted to this thread to help anyone out.
PS. 4g sim cards are cross compatible with 3g phones so if you ever switch back to your old phone you can use the new sim
Sent from my Inspire 4G using XDA App

This should be noted
Regardless of my outcome with AT&T tomorrow, this is VERY important:
"I forgot to mention that between Sunday and Tuesday morning, my Inspire used over 500MB on AT&T's network with all the Google & HTCSense.com syncronization! This is in ADDITION to the data I transferred over my 802.11n network at home! They have geared these devices to absolutely SUCK data down their pipes with their bloatware."
Even if AT&T "allows" me "unlimited" access to their network, there are obviously programs that use their network regardless of our connection to Wi-Fi networks. Therefore, a user that isn't grandfathered into an unlimited data plan will unwittingly use data on their network even if connected via Wi-Fi. If AT&T is FORCING certain programs to use thier data network, even when connected via Wi-Fi, then it needs to be clear which programs are doing so and give the end user the ability to disable those programs. If they do not, they are guilty of a "bait and switch" scheme that is clearly outlawed by current legislation.

mgarciamma said:
You have to have a "4g" sim card placed into your inspire. There is no reason for them not to let you you keep your unlimeted data. Its a different soc code for the data as well. The idiot Rep who you talked to on the phone is the single reason why att has a bad name. Im actually an att store manager and have had att years before I started with the company. Go back to the store you bought your inspire from and tell them to register your imei to the account and to give you a "4g" sim card. The system we use will make them switch the data plan as well but don't worry... you don't have to give up your unlimited. If you have any questions ill try to stay posted to this thread to help anyone out.
PS. 4g sim cards are cross compatible with 3g phones so if you ever switch back to your old phone you can use the new sim
Sent from my Inspire 4G using XDA App
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Click to collapse
Well being as I work for AT&T also, I have to say for a store manager you are not fully up to speed with all this.
Yes you need to have the SOC code for the PDA data plan switched to a 4g code, and yes you can keep unlimited. But you do NOT need a 4g sim card. Those new sims we got in with the new sku are only needed for LTE devices. All the non LTE 4G phones just need a regular 3G sim. The only thing different is the 4G SOC code for the Data plan.
Being as you are ripping the CS rep for mis information, you need to look in the mirror dude cause you're doing the same thing.

chocodough said:
Well being as I work for AT&T also, I have to say for a store manager you are not fully up to speed with all this.
Yes you need to have the SOC code for the PDA data plan switched to a 4g code, and yes you can keep unlimited. But you do NOT need a 4g sim card. Those new sims we got in with the new sku are only needed for LTE devices. All the non LTE 4G phones just need a regular 3G sim. The only thing different is the 4G SOC code for the Data plan.
Being as you are ripping the CS rep for mis information, you need to look in the mirror dude cause you're doing the same thing.
Click to expand...
Click to collapse
You would be correct.

I say root, unlock, flash custom Rom which is already possible and stick it to att! I seriously can't complain because ATT has always been good to me, been with them since late 2004.

I had a Google Nexus One and used my upgrade for the Inspire. The ATT employee used my SIM card and just inserted my SIM into the inspire and I was able to keep my old iPhone Unlimited plan with no issue at all.

i upgraded my phone myself at my job. i made sure i had unlimited.

I've had unlimited data for 5 years now. I was able to keep mine with the upgrade to the inspire, but it required a long, long phone call to AT&T CS to keep it. The sales guy couldn't get their PC to let me keep unlimited without making special provisions w/ CS for some reason. Got to keep it, though.

I purchased mine from Best Buy and the CS reps called At&t and took care if every thing for me. I am also using the same sin from my Captivate. They also were doing the same for the guy next to me.
Sent from my Desire HD using XDA App

Well I hate to say, but most CS reps at AT&T are clueless. Not all, there are some that know their stuff, but most are not very good.
Basically here is how it works if you already have the unlimited plan.
When we go to change from say a BB to an iPhone, or iPhone to PDA, or 4G PDA....etc....we go in and remove the current data plan, and just select the other one we need to put on there. If you already have say unlimited data on an iPhone, being as it's already on there, when we go to put on the 4G unlimited, it will list it and we select it no problem. If you don't already have unlimited it will not be a choice for us to select.
It's as simple as that. It's not rocket science. I am really sorry there are people who are dealing with reps who have no idea what they are doing. It's a pretty simple process to get things switched over.

chocodough said:
Well being as I work for AT&T also, I have to say for a store manager you are not fully up to speed with all this.
Yes you need to have the SOC code for the PDA data plan switched to a 4g code, and yes you can keep unlimited. But you do NOT need a 4g sim card. Those new sims we got in with the new sku are only needed for LTE devices. All the non LTE 4G phones just need a regular 3G sim. The only thing different is the 4G SOC code for the Data plan.
Being as you are ripping the CS rep for mis information, you need to look in the mirror dude cause you're doing the same thing.
Click to expand...
Click to collapse
Thanks for correcting me..... but try using that 3g sim card when lte rolls around. I retract my previous statement about "needing" a 4g sim card but any att store will put one in for free. And it sounds like someone is a cs Rep?
And far as looking in the mirror... I do it every morning with a big smile! Knowing that att has paid for my house, my two vehicles, and all other necessities, I'm obviously doing something right.
Sent from my Desire HD using XDA App

mgarciamma said:
Thanks for correcting me..... but try using that 3g sim card when lte rolls around. I retract my previous statement about "needing" a 4g sim card but any att store will put one in for free. And it sounds like someone is a cs Rep?
And far as looking in the mirror... I do it every morning with a big smile! Knowing that att has paid for my house, my two vehicles, and all other necessities, I'm obviously doing something right.
Click to expand...
Click to collapse
Hehe sorry, I come across too strong sometimes.
No I am not a CS rep. I work in a COR store as well.

my unlimited data plan was removed as well. even after i specifically asked if i was able to keep it, and if not i would not upgrade. ended up spending time on the phone with customer service...and they said they had to put in a case to reinstate the unlimited data plan. i was quoted 9 days before a resolution...wtf???

man, i must have gotten one of the lucky guys in a corp store that really knew his stuff. he had made the captivate->inspire jump as well and fully understood why i was doing it. i kept my same sim that i've had since my iphone 3g and kept the same unlimited data plan. he actually told me that he recommended i keep it rather than switching to the 2gb plan because once i switch from it, there is no going back. he had my inspire up and running in no time at all and i still have my unlimited iphone account grandfathered in.

AT&T 3g VS 4g SIM

I dropped by a local AT&T store to check out the Inspire and the sales rep mentioned that if I upgraded from my HTC Tilt 2, I needed to get a new SIM with a 4g data plan. He said that my existing SIM would not have access to any data in the Inspire. I doubt the SIM cards themselves are really different. They are just probably entered into the AT&T database under different data plans.
So if I do that, can I put the new 4g SIM back into my older HTC Tilt 2 and still get data?
I have to support many different phones and I need to be able to move my SIM around.

Man do they TRAIN these reps at all?
The 4G sim is for LTE. I have a 3G sim and my data works just fine.
The 4G sim is supposed to be backward compatible.

3g here working fine
Inspire (rooted)
Leedroid v2.0.0
TELUS kernel

i've got an old 3g sim and i've been connected to h+ with dl speeds upwards of 3.5 mb/s.
as stated, the 4g sim is for lte, not hspa+...the inspire doesn't even accept lte 4g.

The sales rep even showed my a memo in a book that stated the 3g SIM would not allow access to ANY data in the Inspire.
So it wasn't the sales rep's fault, he was given bad information.

DonS said:
The sales rep even showed my a memo in a book that stated the 3g SIM would not allow access to ANY data in the Inspire.
So it wasn't the sales rep's fault, he was given bad information.
Click to expand...
Click to collapse
Gotcha. My sales guys said he was headed to a training on the new 4G phones this weekend. I knew more than he did

My rep never even mentioned having to change my data plan if I upgraded to 4G. He did, however, mention that they did need to train the reps on the phones that are released...it took him a few minutes to remove the battery door (I was so hoping he wouldn't scratch up the phone before I got to use it - but, he didn't), and I even had to tell him where the SIM and SD cards went (he was looking for it in the battery area, but I noticed there was a door at the bottom that might come off - BINGO!).
AT&T really does need to provide more training for the CS reps. I'm glad I didn't have to change anything; even found a feature I wasn't using that saved me $10 when he removed it (from when I was with Cingular). I also asked about state employee discounts, and am now getting a 15% discount off my monthly bill. SWEEEEEEEEEEET!

I just took the 3G SIM out of my Nexus One... handed it to the AT&T sales rep...and kept my unlimited data plan.
I get H+ and I get very good speeds with no issue at all. Hmm..

The training is there, but it's up to the reps to take it seriously. They had trainings before release on each new phone and detailed instructions to reference. Unfortunately, many just click through the training and ignore the instructions. Btw, every rep was trained regarding the differences between hpsa+ plans vs previous data plans as well as differences between sim cards.

I have the inspire and was having some issues with dropped calls and dropped data. When i talked to the store reps they didnt know anything (go figure) when i called the corporate tech guys they told me to look at my sim card. If there is a 25 in the serial number then i have the right sim card for the phone, that it is the one that will connect to 4g when it comes. I looked at the sim card i was using when i was having the problems and it didnt have the 25 in the numbers, but since i got a new one that does i havent had any issues.

This was a great question. I had had the captivate and while rooted was getting the h in my signal area, and when I upgrades to the inspiewss VERY. Shocked I didn't need a new sim. I remember when the 3g ones came out and what a big deal that was.. all very interesting

Specs say there no LTE chipset in the inspire 4G like the thunderbolt
Sent from my Desire HD using XDA Premium App

I moved from a 3Gs to my Inspire and didn't get a new sim. Just popped the one I had into my Inspire and told me I was good to go. I didn't have to get rid of unlimited data or anything.

haven't had issues with the sim card im my inspire....i've been using it for 3.5 years now.

Your "4G" sim will work in the Tilt 2 as a back-up. I did your exact upgrade (Tilt2-Inspire), and have popped the "4G" sim into my Tilt 2 to do a couple things on the network and it's worked just fine. My old 3G sim card was de-activated when I activated my "4G" so I can't speak to the Inspire working with a 3G sim. Might get better data speed till AT&T's real 4G comes online if it works though.
Like some of the others I was a little worried about losing unlimited when the CSR (did my upgrade over the phone) started talking about a new data plan, but at least this time they aren't stealing unlimited away from their customers.

I just upgraded to my inspire a week or so ago, and I have the same sim that was in my Iphone 3g. I do notice that me data connection is not stable, the speed fluctuates anywhere from .4 mbps to 6.5 mbps. Would the 4g sim cure this?

intermission said:
I just upgraded to my inspire a week or so ago, and I have the same sim that was in my Iphone 3g. I do notice that me data connection is not stable, the speed fluctuates anywhere from .4 mbps to 6.5 mbps. Would the 4g sim cure this?
Click to expand...
Click to collapse
No, the 4g sim does not have any effect on anything at this point. Same speed results and everything.
Sent from my Inspire 4G using XDA Premium App

I used my micro-sim from my iphone 4 in my inspire and it worked perfectly. However i did get that new "4G" sim when i went to the ATT store bc i was told i needed it.

i just ran speed test....my sim card does say 3g i believe
anyways running 10 times these are my numbers
***3.5 mb/s down and 1.19 mb/s upload***
im using leedroid 3.0.3 with leedroid kernel 3.1.1

4g sim is for LTE only. There is no need for it in the inspire. Some of our reps are iPhone dumb.
Sent from my Desire HD using XDA App

Avoid buying a data plan on AT&T?

I'm thinking about upgrading to the HTC Inspire. I don't want to get a data plan because I get wifi 90% of the day (at home and on campus).
My dad is the only person in our family plan who has a data plan. Can he use my upgrade to purchase the Inspire for his line and then switch SIM cards with me? Will he still be able to use his own upgrade for himself in the near future?
I read that AT&T can detect which phone people are using by IMEI. However I've used my Nokia E71 for the past year (upgraded online without a data plan, don't know why it didn't force me) and have been using an iPhone 3G (not mine initially) for a couple of months with no data plan and haven't been caught yet.

I've been doing exactly that for years, no problems yet and I hope to do the same thing with Inspire when my upgrade is available next month.

Inspire 4G is AT&T branded phone. They have all the IMEI numbers. E71 unlocked is non branded one so you can go unnoticed w/o a data plan.
Rest assured Inspire will popup as a smart phone and you will be upgraded.

Will we have to go to an AT&T store in person so my dad can use my upgrade or can we do this online somehow?
@metaldood, Sorry, I meant E71x, the AT&T branded version of the E71.
There's always a chance that AT&T will find out and force a data plan on me, but I'll try hide for as long as I can. B)

metaldood said:
Rest assured Inspire will popup as a smart phone and you will be upgraded.
Click to expand...
Click to collapse
That's what everybody said would happen to my Tilt 2 a couple years ago, hasn't happened yet.

RacerX10 said:
That's what everybody said would happen to my Tilt 2 a couple years ago, hasn't happened yet.
Click to expand...
Click to collapse
Must be nice. I installed my sim card, turned on the phone and went to At&t's site to see that it had already updated my phone on there. That of course doesn't mean it was completely updated in their system yet.

I went from an HTC Fuze (AT&T branded) to a Motorola Milestone (Telus), without any problems, and AT&T never noticed... within about 5 minutes of putting my 3G sim into the Inspire 4G, my (3G) data plan was gone from my account... this after it was re-added by the sales rep.
They don't seem to care if you switch one 3G device for another, but they seem to be policing the 4G phones pretty hard.
Note that after a discussion with the sales rep, he was able to re-add my unlimited data plan as a "4G unlimited data plan".
So, if you do nothing and just hook up the Inspire with your existing sim, chances are you'll be exactly where you want to be-- You'll have voice, and no mobile data (wi-fi still works, though).
If you want to use someone else's data plan (and sim), they'll have to get an AT&T rep to change their plan from "3G only" to "4G compatible", which does seem to be backwards compatible... ie, I can use my sim in my old Milestone no problem.

ufgrat said:
If you want to use someone else's data plan (and sim), they'll have to get an AT&T rep to change their plan from "3G only" to "4G compatible", which does seem to be backwards compatible... ie, I can use my sim in my old Milestone no problem.
Click to expand...
Click to collapse
I've noticed this also. I got my inspire on my wife's upgrade and they changed her line to the 4g unlimited. No problems with it on her cappy. Even though the site had changed my phone from a iphone to the inspire right away I still had the iphone unlimited data plan. (I really should've got a screen cap of that). Was interesting seeing the inspire pic and a message saying that I had to have the iphone unlimited plan with my phone.

AT&T will notice and put the data plan on your account. It started sometime in the past year where you couldn't have a smart phone without the data plan. I had a BB curve that I could use without data because I had it before they required data.
Sent from my Desire HD using XDA App

RacerX10 said:
That's what everybody said would happen to my Tilt 2 a couple years ago, hasn't happened yet.
Click to expand...
Click to collapse
If you disabled your data before September 2009 (IIRC) then you're grandfathered into data block. Only the phones purchased/activaed after that date require a mandatory data plan.

ufgrat said:
So, if you do nothing and just hook up the Inspire with your existing sim, chances are you'll be exactly where you want to be-- You'll have voice, and no mobile data (wi-fi still works, though).
Click to expand...
Click to collapse
So wait if I pop in my Dumbphone sim with unlimited plan , I can still keep it?

AT&T Go Phone on Inspire?

I've tried searching, but couldn't find an answer, so here goes:
Has anyone tried using their Inspire on AT&T's go phone prepaid service? I went into the AT&T store and noticed that they now have an android phone for their go phone service. I've tried a prepaid sim and it works (though it only has talk and text), but would the $50 unlimited talk, text, and web work for us?

popupstoppa said:
I've tried searching, but couldn't find an answer, so here goes:
Has anyone tried using their Inspire on AT&T's go phone prepaid service? I went into the AT&T store and noticed that they now have an android phone for their go phone service. I've tried a prepaid sim and it works (though it only has talk and text), but would the $50 unlimited talk, text, and web work for us?
Click to expand...
Click to collapse
No you still have to get a data plan.
Sent from my Inspire 4G using XDA Premium App

popupstoppa said:
I've tried searching, but couldn't find an answer, so here goes:
Has anyone tried using their Inspire on AT&T's go phone prepaid service? I went into the AT&T store and noticed that they now have an android phone for their go phone service. I've tried a prepaid sim and it works (though it only has talk and text), but would the $50 unlimited talk, text, and web work for us?
Click to expand...
Click to collapse
Where I live there is a prepaid dealer that has prepaid plans for all major service providers att has one called O2 it uses the same towers as att and works with all att cellphones for 60 a month you get unlimited talk text and web and it uses att 3G
Sent from my Inspire 4G using XDA App

popupstoppa said:
I've tried searching, but couldn't find an answer, so here goes:
Has anyone tried using their Inspire on AT&T's go phone prepaid service? I went into the AT&T store and noticed that they now have an android phone for their go phone service. I've tried a prepaid sim and it works (though it only has talk and text), but would the $50 unlimited talk, text, and web work for us?
Click to expand...
Click to collapse
For smartphone users, the data is not included, just the unlimited calling and texting. You must purchase the data seperately and the plans are not so good. $5 for 10mb, $15 for 100mb, $25 for 500mb.
Sent from my Desire HD using Tapatalk

just get straight talk 45 a month

No you cant use unlimited data on. You have to buy data package. 500MB ~ 25$.
So if you have 50$ unlimited just for minutes and sms. I tried to do that but it's not working. More, you have to change APN in order to use data.

daddioj said:
just get straight talk 45 a month
Click to expand...
Click to collapse
isn't straight talk cdma?

gcihlar said:
isn't straight talk cdma?
Click to expand...
Click to collapse
No
........

Straight Talk has both GSM (ATT) and CDMA (verizon) phones. And you can't use an unlocked inspire with them anymore. The only way to do it before was to buy the $200 nokia phone. The rest of straight talk's gsm phones had sim cards locked to the phones. The nokia did not. But now even the nokia phones lock their sim chips to the phone. And even those with older unlocked sims are being caught by straight talk and having their accounts closed.

Agoattamer said:
Straight Talk has both GSM (ATT) and CDMA (verizon) phones. And you can't use an unlocked inspire with them anymore. The only way to do it before was to buy the $200 nokia phone. The rest of straight talk's gsm phones had sim cards locked to the phones. The nokia did not. But now even the nokia phones lock their sim chips to the phone. And even those with older unlocked sims are being caught by straight talk and having their accounts closed.
Click to expand...
Click to collapse
i actually just recently did the straight talk nokia phone to inspire. and i have no issues. i just hope they dont suspend me. but the sim was not locked to my phone or anything

I was thinking of doing the same thing myself. But I did some researching on the internet. Hopefully it holds out for you. Let us know if you have any issues down the road.

I'm using my unlock inspire 4g with prepaid service. No problem its working. I don't have data plan I always use wifi.

How did you get the inspire 4g to read the go phone? Because it's not getting any signal from mine. There will be an X over the signal bars. I already unloked the phone.

I have the go phone thing haha it sucks all I have is unlimited txtn it works for me no joke and miui is great cause the option to still connect when data is disabled so no worry about connecting to the internet
Sent from my HTC Inspire 4g using XDA App

How did you get it working?

Riomaru said:
How did you get it working?
Click to expand...
Click to collapse
I already replied in the thread you made. Att has started locking prepaid sim cards to the phone they are activated on for 6 months. Call them and tell them your swapping phones. They will unlock it but it relock to the inspire. Older sim cards didn't do this

zelendel said:
I already replied in the thread you made. Att has started locking prepaid sim cards to the phone they are activated on for 6 months. Call them and tell them your swapping phones. They will unlock it but it relock to the inspire. Older sim cards didn't do this
Click to expand...
Click to collapse
I am sorry I didn't see and thank you for your help

Help a 4g Noob

hey guys.
I know my way around around and all but I need to ask a few questions about 4g.
right now I have a vibrant with a $60 T-Mobile unlimited plan ( includes data/ no contract).
I plan on getting a g2x(not from T-Mobile) . would I have to get a 4g plan? or I can use my current one with 3g only? is 4g free as long as the phone is capable? and do I need a different sim card for the g2x?
lol sorry for bombarding u all with these questions.....thanks in advance.

You'll will need to have at least a $30 premium plan.
Sent from my LG-P999 using xda premium

If by $60 unlimited plan you mean the prepaid/monthly 4g then yes it will work. Same 2gb data cap though.
Sent from my SGH-T989 using Tapatalk

rsalina9 said:
If by $60 unlimited plan you mean the prepaid/monthly 4g then yes it will work. Same 2gb data cap though.
Sent from my SGH-T989 using Tapatalk
Click to expand...
Click to collapse
yes is the $60 prepaid/ monthly plan but idk if its 4g....right now I get 3g (H) with 5gb cap then its slowed to 2g speed.
my main issue is I do no want to change the plan.....just phone

I may be misinformed but when I went from a Blackberry to the G2x, TMobile told me I would have to change the sim card to a 4g sim. Just throwing that out there.

I through my old sim card that was in my old Mytouch 3g slide into the G2x when i got it. Same plan nothing changed, just new phone. There really isnt a "4g" plan. And T-mobile's 4g network is technically 3g, they just call it that for whatever reason.
Sent from my LG-P999 using xda premium

They are all technically 3g. True 4g is around 100+ Mbps.

I think its just a selling technique. I had an old sim cards from years ago and transferred it into my g2x and ive had no issues at all. I did end up getting a new sim card anyway but the speeds remained the same. Also, it is unecessary to get a "4g" plan. I was talked into getting it when I upgraded the phone but then realized I could have just stuck to my old cheaper plan and the speeds wouldnt have changed. I talked to retentions at Tmobile and the lady even told me she has no idea why i was told to upgrade and she switched me back.

thanks everybody.....i am only limited to 5 thanks a day lol.

GTWalling said:
They are all technically 3g. True 4g is around 100+ Mbps.
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Click to collapse
Well 4g stands for fourth generation. Which is a new technology or method. What Tmobile uses is improved hspa that's why its called fake 4g. Nothing new just really fast 3g. speed doesn't matter nor count has to be a new method of cellular transmittion.
Sent from my CM 7.1.0 G2x using XDA app

K2sInteg98 said:
I think its just a selling technique. I had an old sim cards from years ago and transferred it into my g2x and ive had no issues at all. I did end up getting a new sim card anyway but the speeds remained the same. Also, it is unecessary to get a "4g" plan. I was talked into getting it when I upgraded the phone but then realized I could have just stuck to my old cheaper plan and the speeds wouldnt have changed. I talked to retentions at Tmobile and the lady even told me she has no idea why i was told to upgrade and she switched me back.
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Representatives aren't necessarily knowledgeable on this subject. However, the '4G SIMs' they often refer to are usually UICC/GBA/IMS SIMs. The difference between these SIMs and the old LEGACY SIMs (as they are labeled on the T-Mobile system) is that the legacy SIMs have a lifetime of around 90,000 authentications. Once these authentications run out, the SIM will no longer register on the network.
These authentications are pretty much each time you connect or hand off to a new data tower. On HSPA and HSPA+, these handoffs are occurring far more often than they did on EDGE or GPRS. In essence, with a legacy SIM you are running on borrowed time before your SIM simply begins to refuse to connect to the network. It sounds like a lot of authentications, but they run out astoundingly fast and some people have actually hit the SIM exhaustion point. This won't cause slow data speeds or inability to connect to data but still being able to use voice. Your phone will not authenticate on the network at all.
Any data plan will give you '4G', or rather HSPA+ as long as your phone has the appropriate modem and you are within the area covered by HSPA+ towers. You do not have to change data plans if you already have one. You also do not need a new plan for a new SIM card. If you have a legacy SIM card T-Mobile should replace it free of charge, unless that policy has changed. They are trying to be proactive in preventing customers from not reaching the authentication limit of the legacy SIM cards.
Your SIM card has absolutely nothing to do with your data speed, however on certain phones some features are tied to certain types of SIM cards, especially new IMS featured phones.
lanlee212 said:
Well 4g stands for fourth generation. Which is a new technology or method. What Tmobile uses is improved hspa that's why its called fake 4g. Nothing new just really fast 3g. speed doesn't matter nor count has to be a new method of cellular transmittion.
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No carrier in the US at this time uses anything approaching the original 4G specifications, nor will be capable of doing so for years to come. Current LTE, HSPA+, and WiMax networks are stopgaps and were marketed by carriers as 4G despite them not being so, as they needed a way to market faster phones and networks to customers in a way that customers would understand. The specifications board that handles the generational specifications decided to submit to the desires of carriers and lower the boundaries for '4G'. HSPA+ was the quickest, easiest, least battery intensive, most reliable and most cost effective of the three to implement; which is why both T-Mobile and AT&T have been rolling these upgrades out to towers for some time.