International Samsung S3's phone cannot get 4G

kanyaphak · ‎10-19-2012

Hi,

i bought Samsung S3 from my country 2 months ago, and i try to update my ATT account from iphone4 to Samsung S3 to get 4G with all data, but seem like ATT do not recognize my Samsung S3 and cannot update my Samsung S3 EMIE to my account . what shoud i do to get 4G datafor my speed internet ?

wilcre · ‎06-01-2004

What exact model of G3 do you have and are you using AT&T's prepaid service?. http://en.wikipedia.org/wiki/Samsung_Galaxy_S_III#Model_variants

AT&T's return policy has changed effective 10/07/12. You have 14 days to return the device & cxl without a ETF. Policy info HERE.

Where is Justin Timberlake when you need him?. I need him to billed me a bridge to get a cross all these tears from complainers.This post is protected under the laws of the United States & other Countries. Unauthorized duplication, Distribution may result in civil liability & criminal prosecution.The OP gratefully acknowledge the cooperation of: The mods, Fellow forumites, Canada, The United States Of America, Mexico, USVI & Europe. As well as James Bond.

When the going gets rough, hide in a pillow fort and pretend you don't exist.

kanyaphak · ‎10-19-2012

Hi Wilcre,

i'm using GT-I9300 with AT&T monthy service. do you have any recommend how can i update my account and profile with ATT ? i used a lot of web and data that's why have to stick with monthy plan so i can get unlimited data but still cannot get 4G because of international phone ?

wilcre · ‎06-01-2004

unfortunately per the specs for that model it does not support 4G only 3G and lower. http://www.samsung.com/hk_en/consumer/mobile/mobile-phones/smartphone/GT-I9300MBDTGY

AT&T's return policy has changed effective 10/07/12. You have 14 days to return the device & cxl without a ETF. Policy info HERE.

Where is Justin Timberlake when you need him?. I need him to billed me a bridge to get a cross all these tears from complainers.This post is protected under the laws of the United States & other Countries. Unauthorized duplication, Distribution may result in civil liability & criminal prosecution.The OP gratefully acknowledge the cooperation of: The mods, Fellow forumites, Canada, The United States Of America, Mexico, USVI & Europe. As well as James Bond.

When the going gets rough, hide in a pillow fort and pretend you don't exist.

kanyaphak · ‎10-19-2012

that's sad, but i was told by ATT customer service at ATT store, if i can bring my freind that using S3 which's not international S3 and ATT can just scan EMIE to my account then i will get 4G cause they just need to update my data to 4G .. is it true?

wilcre · ‎06-01-2004

unfortunately the version you are using does not support 4G so there is no way for your phone to get 4G.

AT&T's return policy has changed effective 10/07/12. You have 14 days to return the device & cxl without a ETF. Policy info HERE.

Where is Justin Timberlake when you need him?. I need him to billed me a bridge to get a cross all these tears from complainers.This post is protected under the laws of the United States & other Countries. Unauthorized duplication, Distribution may result in civil liability & criminal prosecution.The OP gratefully acknowledge the cooperation of: The mods, Fellow forumites, Canada, The United States Of America, Mexico, USVI & Europe. As well as James Bond.

When the going gets rough, hide in a pillow fort and pretend you don't exist.

kanyaphak · ‎10-19-2012

Ah.. i see, once i switch from iphone 4 to S3 .. i get barely signal only one or 2 signal and sometime i loss all the signal as well, i went to ATT store and they change the sim card for me, do you have any idea whats going on?

redpoint73 · ‎10-01-2007

What "4G" are you talking about? HSPA+ or LTE?

wilcre · ‎06-01-2004

LTE

AT&T's return policy has changed effective 10/07/12. You have 14 days to return the device & cxl without a ETF. Policy info HERE.

Where is Justin Timberlake when you need him?. I need him to billed me a bridge to get a cross all these tears from complainers.This post is protected under the laws of the United States & other Countries. Unauthorized duplication, Distribution may result in civil liability & criminal prosecution.The OP gratefully acknowledge the cooperation of: The mods, Fellow forumites, Canada, The United States Of America, Mexico, USVI & Europe. As well as James Bond.

When the going gets rough, hide in a pillow fort and pretend you don't exist.

ArieAire · ‎10-09-2012

the i9300 is not an LTE phone. it is a generic GSM phone that does not have the radio equipment for LTE.

redpoint73 · ‎10-01-2007

ArieAire wrote:

the i9300 is not an LTE phone. it is a generic GSM phone that does not have the radio equipment for LTE.

Actually, the phone is compatible with AT&T's HSPA+ network, not just GSM.

But your main point is true, that the international version does not have LTE. They went quad core Tegra3, which did not have LTE support at the time. AT&T want dual core Snapdragon S4 for their version, for the main reason that the S4 chipset supported LTE.

HSPA+ will still get you around 2 to 5 Mbps in a lot of places (faster in some places). Plenty fast enough for most tasks. Some have even complained that LTE while faster, uses more battery.

bbdpeg · ‎06-28-2004

I recently purchased s3 LTE gt-i9305 in Hong Kong. It will only run HSPA on ATT network. Any ideas?

redpoint73 · ‎10-01-2007

bbdpeg wrote:
I recently purchased s3 LTE gt-i9305 in Hong Kong. It will only run HSPA on ATT network. Any ideas?

According to this,your phone is only compatible with the 800, 1800 and 2600 Mhz LTE bands. AT&T uses the 2100 MHz band for LTE. Therefore, the phone is not compatible with AT&T's LTE network. This is fixed in hardware, and cannot be modified through software. Sorry to say, if you were relying on the phone working on LTE, you should have done more research before purchasing.

You are actually a little bit lucky you are even getting HSPA. Your phone is only compatible with the 850, 900 and 2100 MHz bands for 3G. AT&T uses 850 and 1900 MHz for 3G. So you must be in a 850 MHz market. You might find yourself with only EDGE (no HSPA) if you leave the area, and enter an area where AT&T is only using the 1900 MHz band for 3G. Although I think the 850 MHz 3G band is the more common one, and I also think AT&T is trying to migrate the 1900 areas over to 850 (so it will get better for you, rather than worse).