Question about Sony Ericsson K790a Cellular Phone

2 Answers

K790A had phone for one day, and had service for aboout 3 hrs and then quit,, not able to connect to my cell service, however went to cell company and they do support this phone, how do i re connect to this service?  my cell service is Cellular One

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 3 Answers
Re: k790A

I had this problem intermittently with my phone after a while. At first, taking out the battery and sim for about 15 mins then puttin thme back in fixed it, but then it gave out completely.
Call Sony Ericsson. DEMAND an exchange handset, not a repair (the repair company they use (PTS Electronics) is useless, rude, and clueless. I had sent my phone in, which they lost for 10 days, then got the phone back 3 weeks later only to find they said they fixed it, but it still wouldn't connect to T-Mobile)

Posted on Jul 23, 2008

Re: k790A

Change another sim and try it or re install the software

Posted on Mar 05, 2008

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Lost cell phone -- $ 30 card and new phone -- only get 2-3 days ????

Please contact your cellular service provider (the company name is on the card) to switch your old number to your new phone.

Mar 18, 2013 | Motorola Cell Phones

1 Answer

The flash on my k790a doesnt work

Please New Software install in the Phone Problem will Solved

Aug 08, 2012 | Sony Ericsson K790a Cellular Phone

1 Answer

I am unable to flash my K790a as it says error 89 and does not proceed. What should I do?

You can Flash Sony ericsson from the Network lock using the Unlock code,instead of using the Software,You can get that at

Nov 14, 2010 | Sony Ericsson K790i Cellular Phone

1 Answer

Hi, My Sony Ericsson K790A has a plain white screen and nothing is working on my phone.

Its a software find your nearest Sony Ericsson service dealer and reinstall the software.

Oct 03, 2009 | Sony Ericsson K790a Cellular Phone

1 Answer

K790a, is there any way to unlock this phone? I tried one company and they said they could not unlock

yes you can unlock it via usb
with Dultimate unlocker you can unlock your phone.

Sep 23, 2009 | Sony Ericsson K790a Cellular Phone

1 Answer

Only vodafone sim card working another sim card not working

Phones often carry what is called a "Sim Subsidy Lock." Which in plain words means that the phone is locked to only allow usage with one companies SIM cards.

There is a company called Davinci Team that can unlock the phone for use with another company's SIM card, but they charge about 50 euros for this service.

Apr 25, 2009 | Sony Ericsson K790a Cellular Phone

1 Answer

SonyEricsson K790a - wet battery

the EROM on the phone need to be relfash on the phone.

GUEST - you need to take the phone to a mobile service center and ahve them service your phone.

Mar 25, 2008 | Sony Ericsson K800i Cellular Phone

1 Answer

K790a flash won't work.

Try Discharging your flash via Secret Service Menu. Hope it'll save your day. How to find Secret Service Menu ??? Type Sony Ericsson Secret Codes in Google and you'll get all. ;)

Dec 28, 2007 | Sony Ericsson K790a Cellular Phone

Not finding what you are looking for?
Sony Ericsson K790a Cellular Phone Logo

Related Topics:

76 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Ericsson Cell Phones Experts

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Jose Cada
Jose Cada

Level 3 Expert

3530 Answers


Level 3 Expert

18258 Answers

Are you a Sony Ericsson Cell Phone Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides