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Hello All! First off, this is my first post on this forum, and I must say, that I am glad to be a part of a "community" that is passionate about mobile technology!
Question: I currently use an iPhone 3Gs on AT&T. I have the unlimited data and text message plan. If I decide to purchase an unlocked GS2, will my 3G sim card out of my iphone work in the GS2? Also, will I be able to keep my unlimited data and text plan?
Thanks in advance!
As far as I know, and from my experience. Yes.
I am also on that plan, and it works great for me in NYC. HSPA+ 95 percent of the time.
yes, because technically, youre not cancelling the original plan.
Thanks for the reply everyone! So just to clarify, my regular iPhone 3G sim will fit and work on the GS2? Will I only be able to receive 3G connectivity since I don't have a 4G sim or data plan?
Yes it will fit but not sure about the other question.
Sent from my GT-I9100 using XDA App
Anyone know if I will only be able to receive 3G connectivity since I do not have a 4G sim card? Also, will I have to call in to AT&T customer service to have them activate the GS2?
jroc151 said:
Anyone know if I will only be able to receive 3G connectivity since I do not have a 4G sim card? Also, will I have to call in to AT&T customer service to have them activate the GS2?
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You will receive 4g speeds ( actually hsdpa + which att calls 4g)
U dont need to activate ur phone in att to get it to work with data or phone
To activate the 4g network for ur phone u will need an imei from atrix or other ATT 4g plan.
The imei of SGS 2 wont show up in ATT network as a 4g phone as they do not have that data base.
There is big thread here on how to thistopic - The pages 8-11 , I think are more fruitful
http://forum.xda-developers.com/showthread.php?t=1109983
Hope this helps
drgopoos said:
You will receive 4g speeds ( actually hsdpa + which att calls 4g)
U dont need to activate ur phone in att to get it to work with data or phone
To activate the 4g network for ur phone u will need an imei from atrix or other ATT 4g plan.
The imei of SGS 2 wont show up in ATT network as a 4g phone as they do not have that data base.
There is big thread here on how to thistopic - The pages 8-11 , I think are more fruitful
http://forum.xda-developers.com/showthread.php?t=1109983
Hope this helps
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Thanks for the info drgopoo! How do I go about obtaining a valid 4G IMEI from such devices?
jroc151 said:
Thanks for the info drgopoo! How do I go about obtaining a valid 4G IMEI from such devices?
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i used my wife's atrix. Some people had luck by going to the att store and getting one from one of the reps
Even though I love the GS2, having to locate a "4G IMEI" to get the phone to work on AT&T sounds like too much work!
Hate to say it, but I think I may end up waiting for the AT&T variant (ATTAIN) to come out this year. Sucks there isn't a release date in sight as of yet!
jroc151 said:
Even though I love the GS2, having to locate a "4G IMEI" to get the phone to work on AT&T sounds like too much work!
Hate to say it, but I think I may end up waiting for the AT&T variant (ATTAIN) to come out this year. Sucks there isn't a release date in sight as of yet!
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The phone WILL WORK on AT&T no matter what. You will get H+ service no matter what. However if you are switching SIM from a 3G phone, most likely your H+ speed will be capped at like 6 Mbps. To unlock at&t backhaul that is not capped, you OPTIONALLY may want to call in an ask them to change your existing plan to the plan they have for AT&T certified 4G devices like the Infuse. In order to do that, AT&T needs a random IMEI number from such a device. You can give them ANY number. Just stop buy AT&T store, take a look at a display Infuse, go to menus to see the IMEI and take a picture of that screen, then give that number to AT&T rep.
This is just how their plan changing software works, it needs a capable IMEI to put you on the "4G" network.
Just to reiterate , by default imported SGS2 will work on 3g and 4g on AT&T, 4G "may-be" capped though at 6 or so Mbps. I personally do not give two ****s about this capping because only on a rare day I can get more than 3 Mbps in my market (New York) where AT&T sucks tremendously. So I did not bother to call in and upgrade.
Note though, that you do NOT want to call in and upgrade if you are on a dumbphone plan.
Why would you not go back to Media Net plan? It costs 10 bucks with messaging plan, its unlimited and you get H+ speed.
drgopoos said:
You will receive 4g speeds ( actually hsdpa + which att calls 4g)
U dont need to activate ur phone in att to get it to work with data or phone
To activate the 4g network for ur phone u will need an imei from atrix or other ATT 4g plan.
The imei of SGS 2 wont show up in ATT network as a 4g phone as they do not have that data base.
There is big thread here on how to thistopic - The pages 8-11 , I think are more fruitful
http://forum.xda-developers.com/showthread.php?t=1109983
Hope this helps
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Click to collapse
Thanks for the info.
I am currently using my Unlimited Data plan of my iPhone 4 on my SGS2.
I bought this simtray that can hold the micro sim so it fits in the SGS2.
The speeds I get are on the so called 4G network H+ but I am not that impressed for now.
Right now the Upload speed I get is 2.2Mbps Down / 0.79Mbps Up and 138ms Ping. I believe this could be better.
I guess I will try to get the IMEI changed with an Atrix as mentioned.
*Update*
So I just talked with ATT over chat when I logged on to their website.
I lied to them and told them I had an ATT ATRIX 4G and needed the right speed.
They asked me for the IMEI, so I searched for an ATT ATRIX 4G IMEI on Google , they changed it on my account and now I have unlimited HSPA dataplan.
I did some tests with the APN both give more or less the same results but the area I am currently at is not that great for H+ but I did see improvement in the upload speed.
Right now I have 2.39Mbps Down / 1.03Mbps Up and 142ms ping.
Will try it out tonight when I am more close to H+ areas but my iPhone SIM just works fine in my SGS2
kreoXDA said:
This is just how their plan changing software works, it needs a capable IMEI to put you on the "4G" network.
Just to reiterate , by default imported SGS2 will work on 3g and 4g on AT&T, 4G "may-be" capped though at 6 or so Mbps. I personally do not give two ****s about this capping because only on a rare day I can get more than 3 Mbps in my market (New York) where AT&T sucks tremendously. So I did not bother to call in and upgrade.
Note though, that you do NOT want to call in and upgrade if you are on a dumbphone plan.
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I currently have the unlimited data plan on my iPhone 3Gs. I do not want to lose it downgrading myself to the cappeed bandwidth plan. Will the standard AT&T 3G sim card (non-micro sim chip) work in the GS2? Does the imported GS2 come with a sim tray?
Flupken said:
Thanks for the info.
I am currently using my Unlimited Data plan of my iPhone 4 on my SGS2.
I bought this simtray that can hold the micro sim so it fits in the SGS2.
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The GS2 doesn't not come with a sim card tray???
jroc151 said:
I currently have the unlimited data plan on my iPhone 3Gs. I do not want to lose it downgrading myself to the cappeed bandwidth plan. Will the standard AT&T 3G sim card (non-micro sim chip) work in the GS2? Does the imported GS2 come with a sim tray?
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jroc151 said:
The GS2 doesn't not come with a sim card tray???
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Click to collapse
No SIM tray in the package, SGS2 was not build for Apple converts.
Your unlimited 3G will be grandfathered if you put that SIM (with your own adapter) into the SGS2.
Further, I believe (but am NOT sure) you can call in and ask them to "mark" your grandfathered unlimited plan as 4G by telling them your new device is an Infuse or Atrix and giving them the IMEI, per the numerous posts here. I repeat, I did NOT do it myself, so I can't 100% assure you can do it and will not lose anything.
I just upgraded my Unlimited 3g plan to 4g and at&t accidentally put me on the 2gb limited plan and removed my txt messaging. Don't know how the rep made this mistake.
Wasnt a big deal to resolve and get back the unlimited plan. Just make sure you clarify multiple times.
Btw, my 4g and 3g speeds suck in salt lake city. Can't get higher than 2mb download.
Sent from my GT-I9100 using XDA App
jbooker12 said:
I just upgraded my Unlimited 3g plan to 4g and at&t accidentally put me on the 2gb limited plan and removed my txt messaging. Don't know how the rep made this mistake.
Wasnt a big deal to resolve and get back the unlimited plan. Just make sure you clarify multiple times.
Btw, my 4g and 3g speeds suck in salt lake city. Can't get higher than 2mb download.
Sent from my GT-I9100 using XDA App
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My understanding is that once you switch from 3G to 4G, AT&T will remove the unlimited data and ask to put you on one of their new data plans. THis is how they are getting people to let go of the unlimited data. Is this true?
Im looking at a att sg2 and im thinking about unlocking the sim to put it on straight talk or simple mobile or tmobile 30 plan. I know it can go on the two but tmobile i don't know about. If i unlock the sim will it work on tmobile network with there prepaid 30 plan?
Sent from my SPH-M930BST using XDA
derrickmd18 said:
Im looking at a att sg2 and im thinking about unlocking the sim to put it on straight talk or simple mobile or tmobile 30 plan. I know it can go on the two but tmobile i don't know about. If i unlock the sim will it work on tmobile network with there prepaid 30 plan?
Sent from my SPH-M930BST using XDA
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There must be a million threads on this
Sent from my SGH-I777 using Tapatalk 2
At&t phones will work on T-Mobile (or simlpemobile) network (calls, SMS, mms) but will not have 3/4G data. The modem hardware isn't compatible. You would get EDGE which is pretty slow.
If you use straight talk, you will get 3G data. You will have to buy a sim card online then get $45 refill card, and you would have unlimited everything.
I'm sure edge is faster than the 700-1000kb I'm getting from boost
Sent from my SPH-M930BST using XDA
derrickmd18 said:
I'm sure edge is faster than the 700-1000kb I'm getting from boost
Sent from my SPH-M930BST using XDA
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Nope. its edge.
Not sure on exact, but quite a bit less than 700
MotoMudder77 said:
Nope. its edge.
Not sure on exact, but quite a bit less than 700
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Think "dialup modem" class speeds. A bit faster - I think 200-300 kilobits/sec if you're REALLY lucky.
Right. EDGE is 2G technology. Not much good for web 2.0 stuff or streaming.
rangercaptain said:
If you use straight talk, you will get 3G data. You will have to buy a sim card online then get $45 refill card, and you would have unlimited everything.
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Would the 3g data be HSPA+ and how good are the speeds? I have the GS2 on Sprint and my contract is up in September. I'm thinking about going to Straight Talk with a used ATT or TMO GS2. Just wondering which phone would be the best choice.
the 3g data is HSPA+ with straight talk. I switched over from a verizon galaxy nexus and i can say that the HSPA+ speed here is comparable to the Verizon 4g LTE speed, but the signal strength is not near as good.
If im outside, i get about 7 meg down and 1-2 meg up on my at&t i777 (straight talk) and i get 4-6 meg down and .7 - 1 meg up on my 4gLTE Gnex.
Indoors, my GSM signal suffers whereas my CDMA signal does not. Speed not that big of difference, just hard to keep a steady signal with my GSM phones.
Either way, a GREAT deal on straight talk... They say its unlimited but they will call you if you have excessive use (250-500'ish megs in a day or some say over 2gb in a month) and some have said they will deactivate your sim, but i havent had that issue yet.
Great info. Thank you. Somehow the guy at my local Sprint store got me a 25% discount last September when I bought my GS2 for being an employee of Boeing. Thing is I don't work for Boeing and never have. The 3g is horrible and I really don't want to sign another contract with Sprint. It's a decent deal now with the discount but if corporate catches on and takes that away, I'm stuck with it. I thought about the GSM Gnex for $350 from Google, but it really isn't the phone I want. I might wait until the next Nexus arrives. Rumors are we'll see one in early November.
Honestly, this thread should be a sticky. I'm sick and tired of people posting this same exact thing weekly!!!!!!!
Hey,
As I understood there is a problem with 3G here in t-mobile and I would be only able to get 2G, so that's not option for me.
I read that I have another option, which is Straight Talk (AT&T version). And I'll get HSPA+ speeds.
Now my question is which unlimited data plan (unlimited web also) options do I have to get 3G speed ?
Didn't think straight talk had HSPA+. That'd be nice. Sprint has unlimited garbage data for a bit more. Could always hope for 4g in your market.
Sent from my EVO
Straight Talk is great and I get great signal and also I get H+ and its great...I download and stream alot and the speeds are nice...man hands down straight talk is the best choice for only 45 monthly...just order the micro sim of their website and your good to go...you want be dissappointed...i can bet that...
haha ok so I understand that this is the only option there is.. there is a way to get the sim without ordering from the website ?
Interesting thing is happening to me right now.
You see i flashed the tmobile ics blaze modem on to my device in order to test a sim on it. After a few tries i got tmobile signals and all was working fine. Since the tmobile booth i went to didn't have the boyd prepaid offer i decide to go home and have them send it to via mail. This is were is gets interesting.
I leave the mall with my att service still in tack and the ics blaze modem on it. I am grandfathered in to my unlimited plan on lte and am a data hog( netflix grooveshark and the lot) and to my amazement not only was my service still working on hspa+ , it was not being throttled I'm getting around 6mb down and 2 up.
I shut the down the phone and all and it still works.
Luky me . Or maybe since hspa+ is limited to 3gb of data maybe thats the reason
Anyone else seen or heard this?
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
Hey! I have had a rough winter with money and Sprint kind of dumped me after 7yrs of service with no issues with me paying the bill! Anyway I just got this phone recently and hate for it to be a paper weight or media player only so I wanted to know if I have any options other than the Sprint network? I am not a complete rookie I have it rooted and running Barepop at the moment so any advice, help, or info would be greatly appreciated! I hope I don't make anyone angry by posting here. Thanks!
Well it depends if you are ok with like 3G-4G i use t-mobile prepaid some times I went to walmart and got a sim kit for $35 I got unlimted call text and like 5GB's of LTE. Sadly though you cannot get LTE because the phone does not support the LTE but I get like 15 mps 4G and like 10 mb 3G witch is still faster then sprint's LTE and 3G combined. You will have to flash a GSM rom from the android develoment thread right now there is no GSM unlock on for ZV8. You could also try simple mobile I just recomend you go to walmart and look around the celluar area they have a couple sim kits.
1619415 said:
Well it depends if you are ok with like 3G-4G i use t-mobile prepaid some times I went to walmart and got a sim kit for $35 I got unlimted call text and like 5GB's of LTE. Sadly though you cannot get LTE because the phone does not support the LTE but I get like 15 mps 4G and like 10 mb 3G witch is still faster then sprint's LTE and 3G combined. You will have to flash a GSM rom from the android develoment thread right now there is no GSM unlock on for ZV8. You could also try simple mobile I just recomend you go to walmart and look around the celluar area they have a couple sim kits.
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lol you have to be kidding right!!!
15Mbps is faster than Sprints LTE and 3G combined???
Check out the screenshot and mind you I am not too close to a lte tower. i had like 3 bars when i ran this test.
33Mbps your 15 dont even come close. And since sprint is one of the only carriers to pffer true unlimited date i easyly run over 20 gigs per month without slowing down.
Alls im saying is get your facts straight.
Wow guess your lucky most people complain about getting only like 10 mbps (sprintsucks facebook page)
ingoljosh said:
lol you have to be kidding right!!!
15Mbps is faster than Sprints LTE and 3G combined???
Check out the screenshot and mind you I am not too close to a lte tower. i had like 3 bars when i ran this test.
33Mbps your 15 dont even come close. And since sprint is one of the only carriers to pffer true unlimited date i easyly run over 20 gigs per month without slowing down.
Alls im saying is get your facts straight.
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that's the fastest I've ever seen a Sprint!! around here the fastest sprints I've seen are about 10mbps
Thanks for the info!
I am pretty sure I was getting about 25mbs DL speeds on Sprint here in Savannah but I can live with anything over 2-3mbs. I already have a Cricket account and Sim card but I am trying to figure out the best method to get it working on my G3. Cricket is now on the Att network so signal quality is decent and LTE speeds. Anyone who can give me a little guide to get it working on the Sprint G3 I would be VERY GRATEFUL!
my Galaxy Mega on T Mobile got near 40mbps here
ingoljosh said:
lol you have to be kidding right!!!
15Mbps is faster than Sprints LTE and 3G combined???
Check out the screenshot and mind you I am not too close to a lte tower. i had like 3 bars when i ran this test.
33Mbps your 15 dont even come close. And since sprint is one of the only carriers to pffer true unlimited date i easyly run over 20 gigs per month without slowing down.
Alls im saying is get your facts straight.
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He does have his facts straight what you are showing is Sprint's "Spark" LTE network. Their normal LTE network doesn't go above 12 Mbps even with full bars. You are lucky enough to be in an area where spark is enabled, most places don't have spark network enabled although sprint is rolling it out as fast as possible. Their overall speeds are very dismal (with exception of spark LTE).
Sent from my LGLS990 using XDA Free mobile app
hatlesssandman said:
He does have his facts straight what you are showing is Sprint's "Spark" LTE network. Their normal LTE network doesn't go above 12 Mbps even with full bars. You are lucky enough to be in an area where spark is enabled, most places don't have spark network enabled although sprint is rolling it out as fast as possible. Their overall speeds are very dismal (with exception of spark LTE).
Sent from my LGLS990 using XDA Free mobile app
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Sorry I was unaware that there was a normal LTE. i thought Sprint LTE was all SPARK.
Guess i didn't have MY facts straight. :cyclops: