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Trying to unlock my new phone

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Trying to unlock my new phone

Hey, so I was given a phone as a gift from my dad, and he bought it unlocked off of amazon, and when I went to put the SIM card in it (for metropcs), it gave me an error MM6, phone not allowed. I looked it up and all I can find is stuff about unlocking the phone, (a Samsung galaxy s7) so I followed the steps on AT&Ts website, and I got approved for an unlock code! But now I'm scared of messing up because I only get the 5 chances, and there isn't anything popping up for me to type the stuff into. I already looked at This that tells you where to go for the phone types, and also this similar question, but it didn't help, I still can't get it to work. Nothing pops up at start up, and when I try to use the dialer to enter it nothing happens, and if I try hitting call when I've entered it it just says 'not registered on network'. I'm not sure what to do, but I'm really frustrated as I've already had to send back a different phone of the same kind and reaaaaallllly don't want to have to try a third one. 

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ACE - Sage

Re: Trying to unlock my new phone

Did you follow directions?  Turn off, insert metro sim, turn on.  Pop up should show.  

If it fails, open phone app and dial 

#7465625*638* unlock code #

 

(The following is included after all posts to save typing) I don’t work for AT&T. My replies are based on experience and reading content available on the website. Our answers are honest, but not always appreciated. If you posted personal information, please edit and remove.
*The views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.
Message 2 of 4
Contributor

Re: Trying to unlock my new phone

Hey, thank you so much for the advice! Unfortunately nothing happens when I tried it, and when I tried pressing call after waiting a moment to see if it would work on its own, it just said 'not registered on network'. Does this mean something else is wrong?
Message 3 of 4
ACE - Sage

Re: Trying to unlock my new phone

Nothing happens?

No pop up?

No unlock successful/unsuccessful?

 

Not sure what “not registered on network” means from t-mo/metro

 

(The following is included after all posts to save typing) I don’t work for AT&T. My replies are based on experience and reading content available on the website. Our answers are honest, but not always appreciated. If you posted personal information, please edit and remove.
*The views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.
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