Cannot switch mobile data to gsm - Sprint HTC One (M7)

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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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

Support for Tesco mobile

Hello, does anyone know if I flash a custom rom, or a specific rom, will it support Tesco mobile? I have rooted the phone, and it is factory unlocked, but for some reason, the phone will not register on Tesco Mobile. It wouldn't before I rooted it either. Options for Vodafone, Orange, 3, O2, appear, but that's it. Giff Gaff even worked. Any ideas please would be very helpful.
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Have you tried to manually enter them in and save it, they normally come through if you restore to default.
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Can you explain what you mean by manually entering, and how I do this please?
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I've got the settings sorted, however still shows no mobile network when I try dialing a number. I've even got four signal bars so don't understand what's wrong!
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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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LTE issues.

Is anyone else finding that their phone will not connect to LTE?
I did *#*#4636#*#* and tried to change it from WCDMA Preferred, but it does not allow me to do so.
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zero issues with ATT in the wilkes-barre/scranton pa vicinity.
doubt that helps yo though.
Southern Connecticut area here. Is yours set to WCDMA preferred as well?
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Mine is set to lte/GSM auto and will connect to 4G lte when I am in a city with it. Montana has only a few cities with lte and mine is surprisingly not one of them.
Sent from my AT&T Samsung Galaxy S5.
It happened to be a bad SIM card. I went into AT&T and they put in a new one. LTE popped right up. Problem solved.
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I need help with my Mobile Data

Today i was trying to connect to the mobile data and I can't
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You tried to connect with what? Nokia 3310? It doesn't have mobile data. More info please. What phone? Stock? Rooted? If rooted, what ROM?
donkeykong1 said:
You tried to connect with what? Nokia 3310? It doesn't have mobile data. More info please.
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Avobe signature makes me believe he is using an HTC One... :laugh:
@elfabio00
Check your apn settings, must match with your carrier apn
settings --> mobile data --> Access point name ---> <apn of your carrier> ---> <check all info are correct, refer to your carrier website>
I had a problem writing this post Sorry, but I have make other post.
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So, I'm using ARHD with Sense 6 (HTCdevs unlocked and S-ON) . My HTC One is an AT&T version. The problem was that I lost my data service on EDGE (2G) and I see a change in settings menu: "GSM/WCDMA/LTE Automatic" changed to "2G/3G/4G automatic". I would like to recover the mobile data and see the stock config. ( "GSM/WCDMA/LTE Automatic")
I was seeing the *#*#4636#*#* and I clicked "USA Bands" and more later "Automatic" for 2G/3G Frecuency Bands menu. :what:
Help! and thanks!
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