Help with unlocked T-mo G1 - Networking

Hello.
I am trying to use my G1 on the rogers EDGE network.. i have entered my unlock code.. and edited my apn settings. But still I am unable to access the edge network.. I have done just about everything i can think of to get it working..
was wondering if anyone here had some suggestions?

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Help with APN on T-Mobile

Hi, just couldn't find how to do it. I've got a lg g2 d-801 T-Mobile, which is unlocked and I can use it where I am (Romania). The problem is with the internet connection. I can't select a new apn, the only option I have is the stock apn with which the phone came. Other than that no other options. What should I do? I already rooted the phone, perhaps I should flash an international rom or is there something I can do without needing to flash roms or a new recovery? Thx
Made it work, just want to share in case someone else has this problem. In apn settings/apn type write: default,supl,mms,admin and that's it

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[Q] Unlocked, MMS#3 on AT&T help

I have a galaxy S5 on AT&T that I'm trying to use a straight talk sim in. (Att towers) whenever a sim is inserted into the phone I get "Sim not allowed mm#3". I used a reputable service (cell unlocker) to unlock the device. The IMEI comes up clean as well. I've also changed the APN settings, but it won't connect. I'm trying to port from a galaxy s3.
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bump...

Samsung s7 edge 935T t-mobile phone unlocked but at&t network or sim card issue?

I have an edge that is unlocked by tmobile.. in the app, permanent unlock (tmobile unlock app), it says.. "unlock failed" but below says permanently unlocked, unlock approved.. my understanding is this is a normal message.
When i went to the ATT store to test a sim.. they use their live sim, put it in, try to make a phone call but simply said it didnt work, isnt unlocked, which i dont think is right.. issue is i didnt see what if any error message there was.
Is there some step that the att rep should have done to get this on the att network besides putting it in the phone?
Thanks in advance for any info
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S7 edge unlock issue

So i unlocked my US bought s7 edge (AT&T) , they gave me a network unlock code which after entering shows that the device is unlocked but when i insert other providers sim it is not able to search for network and shows no service, is there any way to fix this ? will installing a custom rom fix this issue ? Will US set support Indian ROM?
Bump!
Airtel
I would also like to know how to fix this issue. Unlocked a sprint S7 and when i put in my metropcs sim, it just says searching, and when i try to do a manual search it fails. "Error while searching for networks"
It shows error when i try to search manually

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