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Greenhorn
Cinni
Posts: 5
Registered: ‎2013-09-12
Accepted Solution

Sony Xperia Z does not detect AT & T SIM card in USA. Worked fine in INDIA for 4 months

Hello,

 

I have used my Sony Xperia Z in India for 4 months. It worked fine for indian mobile services providers.

 

Recently, I have moved to USA, and found - my phone does not detect AT & T sim card here.

The same sim card works fine on other phone. But not with my Sony Xperia Z

 

Please guide me what could be the issue.

Thanks alot

 

Cinni

Forum Legend
uliwooly
Posts: 49,013
Registered: ‎2010-07-03

Re: Sony Xperia Z does not detect AT & T SIM card in USA. Worked fine in INDIA for 4 months

Which version do you have the C6602 or C6603? 

 

btw this subforum is for the Xperia Z1 not the Xperia Z 

 

Don't forget to give Kudos

"I'd rather be hated for who I am, than loved for who I am not." Kurt Cobain (1967-1994)

Forum Legend
uliwooly
Posts: 49,013
Registered: ‎2010-07-03

Re: Sony Xperia Z does not detect AT & T SIM card in USA. Worked fine in INDIA for 4 months

For the Xperia Z to work with the big blue 

 

3G

 

850 / 900 / 2100 - C6603 

850 / 900 / 1700 / 1900 / 2100 - C6602

 

4G Network LTE 800 / 850 / 900 / 1800 / 2100 / 2600 - C6603

 

 

USA Carrier Voice Frequencies 3G 4G 3G Technology 4G Technology

AT&T850 MHz, 1900 MHz850 MHz, 1900 MHz700 MHz, 1700/2100 MHzGSM/HSPA+LTE
MetroPCS1700/2100 MHz, 1900 MHz1700/2100 MHz, 1900 MHz1700/2100 MHzCDMA/EVDOLTE
Sprint800 MHz, 1900 MHz1900 MHz800 MHz, 1900 MHz, 2500 MHzCDMA/EVDOWiMAX (2010–present)
LTE (2012–present)
T-Mobile USA1700/2100 MHz, 1900 MHz1700/2100 MHz, 1900 MHz1700/2100 MHzGSM/HSPA+LTE (2013)
Verizon850 MHz, 1900 MHz850 MHz, 1900 MHz700 MHz, 1700/2100 MHz (Planned)CDMA/EVDOLTE [3][4]
U.S. Cellular800 MHz, 1900 MHz    

 

 

Don't forget to give Kudos

"I'd rather be hated for who I am, than loved for who I am not." Kurt Cobain (1967-1994)

Forum Legend
uliwooly
Posts: 49,013
Registered: ‎2010-07-03

Re: Sony Xperia Z does not detect AT & T SIM card in USA. Worked fine in INDIA for 4 months

Do you have the correct APN settings 

 

settings > more > mobile networks > access point names > menu > add New

 

Name pta

MMSC: http://mmsc.mobile.att.net

MMS proxy: 80

MCC: 310

MNC: 410

Authentication type: None

APN type: Not set

Bearer: unspecified

 

Menu > save > restart your phone

 

Don't forget to give Kudos

"I'd rather be hated for who I am, than loved for who I am not." Kurt Cobain (1967-1994)

Greenhorn
Cinni
Posts: 5
Registered: ‎2013-09-12

Re: Sony Xperia Z does not detect AT & T SIM card in USA. Worked fine in INDIA for 4 months

I did same!

Saved new APN as suggested above, restarted phone. But no luck!

 

Greenhorn
Cinni
Posts: 5
Registered: ‎2013-09-12

Re: Sony Xperia Z does not detect AT & T SIM card in USA. Worked fine in INDIA for 4 months

I supppose the one i have supports C6602, C6603 and 4G LTE

 

The AT & T sim card i have runs on on 4G LTE.

 

Still not getting connected to network.

 

2G NetworkGSM 850 / 900 / 1800 / 1900 - C6602, C6603
3G NetworkHSDPA 850 / 900 / 2100 - C6603
 HSDPA 850 / 900 / 1700 / 1900 / 2100 - C6602
4G NetworkLTE 800 / 850 / 900 / 1800 / 2100 / 2600 - C6603
SIMMicro-SIM
Announced2013, January
StatusAvailable. Released 2013, February

 

Greenhorn
Cinni
Posts: 5
Registered: ‎2013-09-12

Re: Sony Xperia Z does not detect AT & T SIM card in USA. Worked fine in INDIA for 4 months

Just had a talk with Sony Xperia support team and came to know - xperia z bought from indian market will not work in us market as frequency differes and US mobile service providers do not support indian frequency.

 

My Xperia Z - model c6602 is of no use in US. Its for Indian market only

 

Forum Legend
uliwooly
Posts: 49,013
Registered: ‎2010-07-03

Re: Sony Xperia Z does not detect AT & T SIM card in USA. Worked fine in INDIA for 4 months

[ Edited ]

That doesn't seem right, AT&T use 850 and 1900 for 3G, in some areas both in some others only one or the other, and the C6602 support them, umm quite odd. I have the C6603 but I've seen other users with the C6602 here in the US, use the search bar and find those threads. 

"I'd rather be hated for who I am, than loved for who I am not." Kurt Cobain (1967-1994)

Greenhorn
Cinni
Posts: 5
Registered: ‎2013-09-12

Re: Sony Xperia Z does not detect AT & T SIM card in USA. Worked fine in INDIA for 4 months

Hey, i got my Sony Xperia Z working in US with AT & T sim card.

There was a mistaken in inserting SIM card in the slot. My bad.

Thanks everyone though for your input!