Question about Sony Ericsson T303 Mobile Phone (Shadow Black)

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Unlock the phone

My phone sony ericsson T303 , I can't use any sim card, please unlock my phone ?

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Hope I helped Dr Reed

Posted on Apr 05, 2010

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Posted on Jan 02, 2017

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1 Answer

Sony ericsson t303 displays 'insert sim' although the sim is already in.Any ideas?


did you touch the gold connection lines on the back of the card? they are really senitive and your suppose to avoid touching them at all. Try gently cleaning them off and replace it back in your phone...also I know this sounds stupid but make sure the card isn't upside down..lol..

Feb 23, 2013 | Sony Ericsson T303 Mobile Phone (Shadow...

2 Answers

Have a T303 witch is on tmobile want to unlock so i can use a differnt sim card please x


The easiest solution is to pay a small fee at a website such as http://www.cellhut.com because it is extremely difficult to unlock a phone on your own.

Jul 29, 2011 | Computers & Internet

2 Answers

Presently i am at Maldives my Sony Ericsson model no 303T not supporting watanya or Durrga SIM card The Phone says insert correct Sim card Please let me know what i can do to active the Sim card thank you


it just means that your phone is not "open line" or it cannot be used for all networks. you have to ask a service center for your phone to be "open line" or to open line it. Once it's open line, you can use durrga or watanya sim.

May 20, 2011 | Sony Ericsson T303 Mobile Phone (Shadow...

1 Answer

I have a Sony Ericsson T303 which I can't use because it says invalid SIM. any ideas what I can do to validate the SIM. It is the right SIM for the phone but the problem started when I put in a pin number...


you will need to contact your network to get the puk code to unlock the original sim or get the phone unlocked to any network which there is no free way of doing on that model

May 19, 2010 | Sony Ericsson T303 Mobile Phone (Shadow...

1 Answer

My sony ericsson t303 sim card is blocked, how do i unblocked my sim i don't have my puc nr to unblocked my sim card


You need to contact the service provider for the PUK code usually a 3 min phonecall and there is no charge for the service apart from the cost of the call

Oct 20, 2009 | Sony Ericsson T303 Mobile Phone (Shadow...

1 Answer

How do I unlock my sony ericssonT303


Unfortunately, most Sony Ericsson phone can only be unlock by a patch, or by a sim called Magic Sim, or something like that. This sim will by pass the sim's security. Or get SETool to try to unlock it yourself.

Sep 05, 2009 | Sony Ericsson T303 Mobile Phone (Shadow...

2 Answers

Sim unlock code for sony ericsson t303


You'll have to contact the provider about the code
that makes your phone simlock free.

For example vodafone does that after a year for free.

You're provider needs your phone's EMIE code to unlock your phone.

Succes.

Sep 04, 2009 | Sony PlayStation® 3 (60 GB) Console

2 Answers

How do I enter unlock code?


  1. For the unlocking of a locked Sony Ericsson no sim card is required.
  2. Turn on the handset. Display will indicate “Insert SIM.”
  3. Press the left Arrow (<) button.
  4. Press the star (*) button twice.
  5. Press the left Arrow (<) button again.
  6. You will briefly see one of the following messages listed on devices display: “Personalized with MNC2” or “Personalized with MNC3”.
  7. Press OK
  8. The display will indicate “Network” and a picture of a closed lock.
  9. Press Select.
  10. The display will indicate “Unlock (Net) 5” and “NCK:”
  11. Now enter your 16 digit NCK Code.
  12. Phone should now be unlocked.

May 07, 2009 | Sony Ericsson T303 Mobile Phone (Shadow...

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