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Turn a 3G Device to a 4G Device?

I tried searching but I couldn't find anything that would help me to be the wiser. What differs the 4G version and the 3G version <- which I have?
Is it possible to turn a 3G to a 4G? Is it just drivers or physical hardware that differs them?
Kind Regards,
Jolaren

its just an icon on the sensation...... besides the band differences on the couple versions out there they are all the same!
but on a realistic level, there is hardware that makes the difference from a 'TRUE' 4G to a 3G device
'h' is 3g

So my European bought Sensation won't be able to run 4G ever?
Sent from my HTC Sensation Z710e using XDA App

jolaren said:
So my European bought Sensation won't be able to run 4G ever?
Sent from my HTC Sensation Z710e using XDA App
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Well. You see, the T-Mobile 4G isn't even 4G its actually 3G they just call it 4G.. So "H" is basically "4G" for T-Mobile users. So don't worry, you're not missing out on anything. It's just an icon

All current 4G is not true 4G. But it is marketed as such. That's not the question here.
3g can do up to about 3mbs on average. It uses a different radio spectrum than 4G phones.
For example my sensation hits 5mbs while my wifes 3g Samsung Galaxy S can only reach 300kps to 600kps when compared side by side. It will depend on your proximity to the tower, but my real world tests were done side by side so hopefully that helps you. Don't take my advice though, go to your nearest store and run the comparison yourself!
Hope this helps!

[Q] Is the Atrix 4g like one of the Fastest Phones ?

Do you think the Atrix 4g is one of the fastest phones ? Thanks

Which s2 is the best?

quick question...I have both the sprint and Tmo variants of the galaxy s2 and have a chance to pick up a skyrocket at a decent price. Which galaxy s2 do I all prefer? I originally picked up the t989 but it appears to be the sidekick 4g's bastard cousin and gets the least support due to the one off processor. Who wins the s2 fight? Btw any suggestions on new apps/roms/kernels whatever to try out?
Sent from my SGH-T989 using XDA App

Stay away from the skyrocket unless you neeeeeeeeeed lte that badly. It uses a snapdragon chip, which blows. The normal galaxy s2 uses an exynos chipset which is very good. Get the sprint model, make sure its not the skyrocket and youre set

my d710 of galaxy s2 is very good.!

In terms of device performance, definitely Sprint's Epic 4G Touch. It has all the same hardware as the international S2, plus an LED notification light, 4.5 inch screen and WiMax 4G, and a bigger battery. The Skyrocket has the same processor as the 989 because Exynos doesn't do LTE just like it doesn't do T-Mobile's funky AWS 3G frequency.
The Epic 4G Touch and i777 (AT&T original S2) are the best. Out of those two the AT&T model is the best in terms of ROM support, but the Epic 4G Touch is better because of the bigger screen, LED notification and bigger battery. The AT&T version can run all of the i9100 ROMs with some tweaking and it has NFC, which the Epic 4G Touch doesn't.

[Q] should i get ride of my gs2 d710 for an evo lte?

I currently have a epic touch 4g from sprint and dont get me wrong its a "good" phone but coming from a htc evo 4g it seems that my evo was way faster then my gs2. It could just be sprint slacking on my service but its a noticable lag. Now the evo lte seems appealing to me but was thinking is it worth it?

HTC One S 4G Wont Work After Venom Rom

I know this is a repost, but can someone direct me to the thread on how to fix this?

Sure
http://forum.xda-developers.com/showthread.php?t=1850917

el_smurfo said:
Sure
http://forum.xda-developers.com/showthread.php?t=1850917
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Click to collapse
I felt dumb. I still have the same speeds as 4g, but it says 3g

mikennite said:
I felt dumb. I still have the same speeds as 4g, but it says 3g
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That's a known issue with sense 4.1 Roms. I'm.using viper one s 1.1.1 and it has a g icon for 4g.
Sent from my HTC One S using xda premium

htc one s 4g
I have the HTC one s 4g running the newest viperone Rom and I don't see it having 4g.
I looked up the specs for the phone and it says it doesn't support 4g on tmobile but I keep seeing forums with people saying they have 4g.
What do I have to do to have 4g? I have a new micro sim that should support it.

th3 po1son said:
I have the HTC one s 4g running the newest viperone Rom and I don't see it having 4g.
I looked up the specs for the phone and it says it doesn't support 4g on tmobile but I keep seeing forums with people saying they have 4g.
What do I have to do to have 4g? I have a new micro sim that should support it.
Click to expand...
Click to collapse
the rom is not the one that controls the data speeds or 3g or 4g, the radio is, our phone is quad-band and suport T mobile and att networks.
lte is not suported, beside thath all the other networks like. 4g,3g,2g,edge,g, are supoerted.
what the rom does not suport is the data icons, since the venom 2.0.0 base is not from T Mobile Us and is from some kind of rare network in Europe,, 4g icon is not suported, phone will be most of the time in 3g and h icon.
but your data speeds will be the same as 4g, since only the icon is not present in the rom.