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I had to unlock my phone and what you do is ring up your current provider and they will give you a code to put in to your phone which will unlock it from the provider and then you can use any sim card from any provider in the phone.

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Wiki User

14y ago
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Wiki User

12y ago

Phone Telstra...

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Anonymous

Lvl 1
3y ago

My first mobile prepaid Telstra phone how do I activate the sim

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Q: How do you change an Optus sim card to a Telstra sim card?
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I just unlocked my phone. and put an optus sim in it to make sure it was unlocked. will the phone be locked to optus now?

No - the phone is the item unlocked - not the SIM card. If you were to replace the Optus SIM card with (for example) a T-mobile SIM - it would register to T-mobile. You could swap the SIM card back with the Optus card, and still use it.


How do you change from optus to telstra with a boost webslider?

Don't acivate the sim card it came with (which is the boost one). keep it locked ring the boost company, and exlplain to them or talk to the person who u brought it off i hoped this helped!! :)


What is your mobile operator if your phone is vodafone but you changed your Sim card into Optus?

Optus


Can you put an optus sim card in a telstra phone?

No you can't, it makes you put in a password and it may damage your phone.


What to do if i don't know my PUK number?

It depends weather your with Optus, Telstra... I am with Optus so you call Customer Service the Optus number is 1300 555 002.


How do you unlock a sgh-e250 virgin sim card to telstra?

take out the sim and type in #*7337# put the sim back in and youre done


Can you use a Telstra iPhone in Europe?

Yes, as long as you have a SIM Card to swap in to avoid roaming charges.


If you cancel a telstra SIM card can you reactivate it?

No you cannot. Once a SIM card has been deactivated by the sercide provider it is no longer any good and can never be activated again. The only thing you can do with it is use it to transfer your contacts to a new SIM card with a card reader at your service provider's store.


Optus sim work in boost mobile?

Yes, you can because Boost Mobile is locked to the Optus Network.


How do you change the sims card you are using my iPHONE has just broken and i want to change back to my old sim card How do i swap the sim I am using they both have the same number?

To change the sim card on your iPhone simply open it at the back remove the battery and replace your sim card.


Will the settings of my HTC Wildfire change if I remove the sim card?

The settings of your HTC Wildfire will not change when you remove the SIM card, but you may lose your contacts.


Can you transfer numbers from a locked sim card to another phone?

it depends on weather its the phone that is locked or if the sim card is locked. if its the sim card then you need to call telstra and they can unlock it for you. but if its only the phone then the sim card will always work on any other phone