CM10.1 & 4g - Epic 4G Q&A, Help & Troubleshooting

I'm on the newest 2-26-13 cm build and I am not getting 4g, is anyone else running into this problem?

Do you have 4g in your area? If so, did you have 4g before flashing the 022613 build?

DynamicN said:
Do you have 4g in your area? If so, did you have 4g before flashing the 022613 build?
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4g works great on cm10.1 - 20130316 - I was getting 6mbps down. But it doesn't tether the 4g over wifi it seems.

I don't think 4g runs off or through wifi, as far as I know it's either 4g or wifi

cybershawngates said:
4g works great on cm10.1 - 20130316 - I was getting 6mbps down. But it doesn't tether the 4g over wifi it seems.
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DynamicN said:
I don't think 4g runs off or through wifi, as far as I know it's either 4g or wifi
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I'm pretty sure using 4G and hotspot at the same time will have some issues, because WiMAX is essentially WiFi, but with far greater signal strength. So 4G and WiFi use the same chip in our phones, thereby making it difficult to use hotspot and 4G simultaneously.
Sent from my SPH-D700 using Tapatalk 2

jeffreyjicha said:
I'm pretty sure using 4G and hotspot at the same time will have some issues, because WiMAX is essentially WiFi, but with far greater signal strength. So 4G and WiFi use the same chip in our phones, thereby making it difficult to use hotspot and 4G simultaneously.
Sent from my SPH-D700 using Tapatalk 2
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Not true. You can run hotspot off of wimax.
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Wimax and 4g questions

First, can wimax or 4g work with a non activated phone using only wifi or romaing network
Second, what is wimax and 4g how do i set it and is it like wifi where you can connect to 4g/wimax networks,
Last whats the diffrents between wimax and 4g
it there Sent from my PC36100 using xda premium
First, can wimax or 4g work with a non activated phone using only wifi or romaing network
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Umm no, since 4g obviously goes through sprint, an unactivated phone wont connect to the network.
Second, what is wimax and 4g how do i set it and is it like wifi where you can connect to 4g/wimax networks,
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http://en.wikipedia.org/wiki/4G
Like 3g but faster.
Last whats the diffrents between wimax and 4g
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There are two types of 4g networks in the US right now, Wimax and LTE. Sprint is the only carrier using wimax right now, even though they aren't expanding due to the switch to the better LTE.
Thanks for the info
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N3r0-666 said:
First, can wimax or 4g work with a non activated phone...
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Yes, I have mine setup to Clearwire WiMax network, not activated with sprint.

4g on sprint

Okay so on my wife's epic 4g running cm9 under the settings there is a 4g section and her toggle wimax works. On this phone on the same rom I don't have that option. And the wimax toggle doesn't work. Is this just temporary or does this phone really not get wimax. Cuz I don't get lte where I live and 3g is so slow.
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Yes, the Galaxy Nexus doesn't have WiMax, its not just your ROM. It has EVDO (3G) and LTE (4G). Since LTE isn't even starting to launch for a couple more months, expect to keep waiting.
twilightvanquisher said:
Okay so on my wife's epic 4g running cm9 under the settings there is a 4g section and her toggle wimax works. On this phone on the same rom I don't have that option. And the wimax toggle doesn't work. Is this just temporary or does this phone really not get wimax. Cuz I don't get lte where I live and 3g is so slow.
Sent from my Galaxy Nexus using xda premium
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You seriously are saying you bought the phone and didn't know it would not do wimax ? Don't think there is very much wimax in phoenix either...as I live at 75th and mcdowell....can't say that there is much 4g just a couple places that I ever connected and so spotty not really usable
Sent from my Galaxy Nexus using Tapatalk 2

How to turn off 4G

I see that my 4G is on, but can't figure out how to turn it off as I don't have 4G service in the area. Anybody know how to turn this off? Also, stupid question, but is this phone able to connect to 4G and 4G LTE, or just 4G LTE?
noreboy said:
I see that my 4G is on, but can't figure out how to turn it off as I don't have 4G service in the area. Anybody know how to turn this off? Also, stupid question, but is this phone able to connect to 4G and 4G LTE, or just 4G LTE?
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You have to go into the mobile networks under settings to shut off lte. The only 4g is lte, wimax does not function on this phone.
Sent from my SPH-L710 using xda app-developers app
pastert33 said:
You have to go into the mobile networks under settings to shut off lte. The only 4g is lte, wimax does not function on this phone.
Sent from my SPH-L710 using xda app-developers app
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Thanks! So regular 4G is the same as WiMax? Sorry, I just upgraded from the S1 (Epic) with just 4G.
Wimax was going to be 4G but sprint trashed that idea and switched to LTE/4G.. but the 4G on S3 is LTE not Wimax.

how turn of 4g

how do you guys turn off 4g
Both the battery working so good and long I would ask you this:
Why?
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just wanna test 3g of tmobile
i do have unlimited 4g
mrej201 said:
just wanna test 3g of tmobile
i do have unlimited 4g
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4G and 3G are not actually different for Tmobile.
Wikipedia article on Evolved HSPA
So then, the question is how to turn off DC hspa. Which is probably not accessible through the maintenance menus.
But for many real world value metrics I don't know what you would gain.
Get the app called phone info
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I think there's an app for that. I forgot what its called but I think the toggles are Edge or HSPA+ umts only
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Phone info
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I'm wondering if the OP came from Sprint? Sprint's 4G was a separate (battery sucking) radio that you could turn on and off and needed to in order to protect the battery usage.
4g on TMo isn't like LTE, it's not a separate modem to turn off like AT&T, VZW, or sprint. It's really a hopped up version of 3G. Your choices are 3G/4G or Edge.
mrchris1234 said:
I'm wondering if the OP came from Sprint? Sprint's 4G was a separate (battery sucking) radio that you could turn on and off and needed to in order to protect the battery usage.
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yea i did came from sprint that y i ask but thanx for the app guys
I occasionally see a G. Not sure what that is...
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DarthPiggie said:
I occasionally see a G. Not sure what that is...
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That is the 2G service.
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mrej201 said:
yea i did came from sprint that y i ask but thanx for the app guys
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On T-Mobile, there is no real differentiation between 3G and 4G. Both operate on the same spectrum. The only difference is the speeds. However, that is controlled, not by your phone, but by the tower you're connected to. It's easier to look at it as the same exact technology. For the purpose of this conversation, there is no more T-Mobile 3G. It's all 4G, or HSPA+, service now. The 3G brand has been retired in favor of the 4G moniker.
To put it all simply, 3G is the same as 4G on T-Mobile. To turn off 4G, you would drop down to 2G, or EDGE/GPRS, service.
cajunflavoredbob said:
On T-Mobile, there is no real differentiation between 3G and 4G. Both operate on the same spectrum. The only difference is the speeds. However, that is controlled, not by your phone, but by the tower you're connected to. It's easier to look at it as the same exact technology. For the purpose of this conversation, there is no more T-Mobile 3G. It's all 4G, or HSPA+, service now. The 3G brand has been retired in favor of the 4G moniker.
To put it all simply, 3G is the same as 4G on T-Mobile. To turn off 4G, you would drop down to 2G, or EDGE/GPRS, service.
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And if you still want to do it.....go to settings - more settings - mobile networks - network mode and you can select "GSM only".
Strangely enough....there are a couple areas around where i live that my phone will show a 4G connection and absolutely refuses to open anything. I've found that if i switch to the "GSM only" option in those areas that at least i can get it working... slowly, but better than nothing.
Had the same issue with my previous phone. (G2) weird phantom 4G zone. :-/
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[Q] HSPA Problem

I have S2 and ever since I started using roms i don't get 4g anymore. It shows HSPA 10.
That is the 4g network for tmobile. You should see 4g or h+ in status bar and hspa 10 or 15 in settings
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richardlibeau said:
That is the 4g network for tmobile. You should see 4g or h+ in status bar and hspa 10 or 15 in settings
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Yup. H+ on aosp roms is 4g. Its just a cosmetic difference.
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So download speed shouldn't be any different than Stock Rom correct? oh yah btw does T-Mobile US or T-Mobile US LTE apn actually make a difference sorry new to this rom stuff and how come i'm only using 3g for calling? Cause Stock rom used 4g im pretty sure and it was much clearer
cgibbons51 said:
So download speed shouldn't be any different than Stock Rom correct? oh yah btw does T-Mobile US or T-Mobile US LTE apn actually make a difference sorry new to this rom stuff and how come i'm only using 3g for calling? Cause Stock rom used 4g im pretty sure and it was much clearer
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3 and 4g are your data connection...not phone calls or texts.
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kj2112 said:
3 and 4g are your data connection...not phone calls or texts.
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Oh lol im dumb. Anyways it seems my Download speed is much slower since i switched to a rom

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