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T mobile tab unlocked getting horrible service on att.

Like the title says. T mobile tab flashed over to euro rom to allow phone access.
I put my att sim in and it says att in the notification bar says att but i get little to no service. If it does get edge it dissapears a second later. Could this possibly be because of a bad unlock if that exists.
A side note. I am using a new 4g att sim in the tab would that make a difference
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You did not mention if you checked the APN settings. I am not sure if the TMOUS AWS band is the problem on ATT.

Sorry, yes i did check the apn settings. But would the tab still show att if it wasnt unlocked. Maybe my unlock didnt take.
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And just to add some info. When i first put my sim in it took a while to get service then it started to junp around frequencies. Edge then gprs then hsdpa and now nothing
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Figured out the problem the unlock did not take
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infuse4g said:
Figured out the problem the unlock did not take
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You do relize that Edge speeds will probably be all you get for data FYI.
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You will not get 3G since att 3G operates at a different frequency than tmobile. However you should be getting edge.

I am having the exact same problem with the unlock ? How did u get it to work exactly

Sim question

I am assuming to get a go phone sim to work it has to be from a prepaid smart phone? I had one from a regular phone but it says to insert sim card even after i put in in several times. Any help?
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Help anyone?
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Atrix hd mobile data not working

Hi. I recently bought an ATRIX hd from ebay. And i love the phone. But just today I noticed at school that my data hasn't working. I tried to restart my phone and took out the sim
Card but none of those things worked. Has anyone got a solution? (I don't know a lot about Android so if there is a special process i could try please tell me)
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ayo234 said:
Hi. I recently bought an ATRIX hd from ebay. And i love the phone. But just today I noticed at school that my data hasn't working. I tried to restart my phone and took out the sim
Card but none of those things worked. Has anyone got a solution? (I don't know a lot about Android so if there is a special process i could try please tell me)
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You have to set your carrier APN configuration well.

I know when I bought my phone I left the store and everything worked except for data I had to go back to att and they had to activate it or something
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You need the APN
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I got it fixed. I just called att and they activated my sim
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Stuck in 3G

Anyone else experienced this issue? A simple toggle of airplane mode and 4g is back but only for an hour or so.. Ive always gotten 4g in my area where i am is pretty well coverd. Also once in 3g it will never go back to 4g..
Ive seen others have this neusense and what was recommended was to factory reset (which solved theres) but this did not solve my issue
Any insight?
I suspect the app android tweaker may have caused this or from flashing 4.4 roms but even after factory reset this issue is not solved
Coming from verizon and
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I am in the same boat as you I toggled 3g in eclipse GPE and will not return to LTE CDMA (3g) except in 4g (LTE only) which will not allow me to receive text messages. I am on MI1 boot loader using safe strap 3.65 and hyperdrive 10.2 and eclipse Google play edition. Please let me know if you find. Solution that works for you. I have flashed MI1 Odin file with out luck or any success
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Fixed by a new sim, though there should be a way to fix it but new sim easiest method and only that i know of
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I reflashed mi1 kernel still no 4g took vzw mj4 update but have not been in a reliable enough 4G area since to test yet. I initially thought sim also but what doesn't make sense to me is 4g works with same sim swapped in my RAZR maxx. stock for now may be going to the big red store tomorrow :/ will keep ya posted
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is it the phone or sim wich is 4g i have a htc one x 3g but are getting the one 4g on monday so can i just put my sim from my one x in and it will get 4g,,,thanks

Just came from the vzw store and it was the SIM card that was bad in my circumstance
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Chadwick108 said:
Just came from the vzw store and it was the SIM card that was bad in my circumstance
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I starting to wonder if we should take out our sims before flashing back and forth from 4.2 to 4.4?
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Don't think it would hurt
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Cannot switch mobile data to gsm

Sprint HTC one unlocked, rooted, SIM unlocked. I have tried three different roms but I cannot switch data mode. Will not switch to any mode except cdma only or cdma/lte. Any one know why?
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