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

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

Cinni — Thu, 12 Sep 2013 03:33:40 GMT

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

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

Uliwooly — Thu, 12 Sep 2013 03:39:36 GMT

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

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

Uliwooly — Thu, 12 Sep 2013 03:43:39 GMT

For the Xperia Z to work with the big blue

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&T	850 MHz, 1900 MHz	850 MHz, 1900 MHz	700 MHz, 1700/2100 MHz	GSM/HSPA+	LTE
MetroPCS	1700/2100 MHz, 1900 MHz	1700/2100 MHz, 1900 MHz	1700/2100 MHz	CDMA/EVDO	LTE
Sprint	800 MHz, 1900 MHz	1900 MHz	800 MHz, 1900 MHz, 2500 MHz	CDMA/EVDO	WiMAX (2010–present) LTE (2012–present)
T-Mobile USA	1700/2100 MHz, 1900 MHz	1700/2100 MHz, 1900 MHz	1700/2100 MHz	GSM/HSPA+	LTE (2013)
Verizon	850 MHz, 1900 MHz	850 MHz, 1900 MHz	700 MHz, 1700/2100 MHz (Planned)	CDMA/EVDO	LTE [3][4]
U.S. Cellular	800 MHz, 1900 MHz

Don't forget to give Kudos

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

Uliwooly — Thu, 12 Sep 2013 03:44:31 GMT

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

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

Cinni — Thu, 12 Sep 2013 11:43:36 GMT

I did same!

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

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

Cinni — Thu, 12 Sep 2013 11:47:13 GMT

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 Network	GSM 850 / 900 / 1800 / 1900 - C6602, C6603
3G Network	HSDPA 850 / 900 / 2100 - C6603
	HSDPA 850 / 900 / 1700 / 1900 / 2100 - C6602
4G Network	LTE 800 / 850 / 900 / 1800 / 2100 / 2600 - C6603
SIM	Micro-SIM
Announced	2013, January
Status	Available. Released 2013, February

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

Cinni — Thu, 12 Sep 2013 13:51:02 GMT

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

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

Uliwooly — Thu, 12 Sep 2013 16:41:20 GMT

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.

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

Cinni — Mon, 16 Sep 2013 03:34:08 GMT

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!

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

Rohitsairaj — Tue, 07 Apr 2015 02:55:34 GMT

This plan didnt work for my sony xperia c2305