hi i have iphone 6 on t-mobile i want to unlock it !how can i do that?

You need to contact T-Mobile to have that done.

Cheers,

GB

Contact T-Mobile and have them unlock it. They will supply apple with the phone ID and then you will have to restore it using iTunes to unlock it.

Only T-Mobile can unlock it.

Contact them

i got this iphone on ebay ,and when i contact tmobile they told me that they cant do anything without previus owner ,haw can i unlock it withot previus owner????

You need to return it to the seller on eBay and get a refund. They sold you a locked device that you cannot do anything with.

Sorry,

GB

tmobile told me to contact apple

Apple can't do anything about it. The carrier it is locked to 'owns' the lock. If it's locked to T-Mobile, only T-Mobile can authorize unlocking it. If their policy is that they will only do so for the account holder to whom that phone is registered, then that's the way it is.

If you can't return it for a refund, then either switch to T-Mobile yourself so that you can use it, or sell it to someone who uses T-Mobile.

will they tell me to whom is is registered?

Return it it eBay for a refund.

GB

I suggest you can approach Unlocking4u.com and specify the country,locked network of iPhone 6.Based on the availability you can get the permanent unlock service along with free instructions.