Develop Bugs

[Q] Sprint to switch to LTE

I read an article on engadget that said it was a possibility that sprint would be switching to LTE because of Clears(Clearwires) financial problems. Anyone have anymore info on this ?? Will our EVOs work on LTE? IS there a special radio required for that or just software?

There is a thread on this in the general section. And I would say no, as it would be GSM and requires a simcard, and the Evo radio can't access it. But it won't happen immediately.

LTE is not even related to GSM.
I have been reading different theories. One is that our current 4g antenna can handle LTE with an update, but I am not sure I buy that one.

Well I never claimed to have all the answer. But as to your second point, I don't buy it either doubt the evo would be able to support it.

Verizon uses LTE on cdma (same as Sprint). As for LTE being compatible I've heard rumors an update to the radio is all that's needed.
I assume if its not they will keep us wimaxers on clear and in 2 years or so we will all be upgraded anyway (new phones)
Sent from my Evo. Powered by MikFroyo, netarchy, XDA, and the tears of iPhone owners

ok to clear this up since everyone seems to be misunderstanding everything with this.
The WiMax radio and the LTE radio are very different. As far as I am aware, LTE requires a sim card. WiMax does not. The Towers that sprint has put up for WiMax can apparently be converted to LTE towers by changing one piece of hardware and issuing a software upgrade.
Your Evo will not be able to access LTE. It does not have an LTE card in it, it has a WiMax chip.
in the real world, LTE is the faster network than WiMax is. The downside is they can control what you do or don't do. What websites you go to, etc.
in my experience I have seen LTE do 15-20 down and 2 up on a broadband card. Wimax I have never seen past 10 (due to sprint limiting this anyway) and it is usually around 4-5 on average.

nosympathy said:
ok to clear this up since everyone seems to be misunderstanding everything with this.
The WiMax radio and the LTE radio are very different. As far as I am aware, LTE requires a sim card. WiMax does not. The Towers that sprint has put up for WiMax can apparently be converted to LTE towers by changing one piece of hardware and issuing a software upgrade.
Your Evo will not be able to access LTE. It does not have an LTE card in it, it has a WiMax chip.
in the real world, LTE is the faster network than WiMax is. The downside is they can control what you do or don't do. What websites you go to, etc.
in my experience I have seen LTE do 15-20 down and 2 up on a broadband card. Wimax I have never seen past 10 (due to sprint limiting this anyway) and it is usually around 4-5 on average.
Click to expand...
Click to collapse
ACTUALLY, wimax end of life is suposed to be able to hit 140 mb/s and LTE end of life is only looking at 100 MAX... so in the long term wimax is much faster, most people have said that it's mearly the way clear rolled it out that makes it so unreliable and slow.

[Q] About Custom roms and 3G/4G

Hi All,
Ive been looking at the custom roms, now finally done it to my DHD after 7 months of owning it and its now Fantastic!
Just 1 thing that confuses me though, looking at the rom i have and other roms, they describe to have the 4G connection speeds? However the DHD is a 3G handset? Can this be correct? Is it just a software change? Or is it diown to hardware and cannot be true?
Thanks in advanced.
Dobby

Im not sure on this being a software change as the 4g part requires a beefy antenna. I am guessing that this is carrying the same hardware (less a couple of toys) for the US version of the handset 4g is plausible. However Being plucky Brits we do not have a 4g network yet,
The closest we get is HSDPA which is 3.5g (7mb download apparently).

wbbigdave said:
Im not sure on this being a software change as the 4g part requires a beefy antenna. I am guessing that this is carrying the same hardware (less a couple of toys) for the US version of the handset 4g is plausible. However Being plucky Brits we do not have a 4g network yet,
The closest we get is HSDPA which is 3.5g (7mb download apparently).
Click to expand...
Click to collapse
Ahh, didnt know that 4g werent in use over here yet! lol... 3.5 aka HSDPA is what the DHD uses aint it??
Cheer mate!

[Q] Tmobile SIM in ATT Phone, EDGE only?

So I finally called ATT and got the subsidy unlock code for my Tilt2.
I popped in a Tmobile sim and it instantly works fine in every function except the connections speed. I am getting Edge only.
My question is, Can this be improved by the addition of a more recent radio? Or am I stuck with Edge due to the hardware in the ATT version of the phone?
I haven't played with this phone for almost a year except for a week in December or so when I reflashed to FireStorm 7.4 while my Captivate had crapped out. So I am kinda out of the loop on this. I was told the Captivate can't run Tmobile 3G no matter what radio I run. But I was hoping since the Tilt2 has been out so long someone might have figure out something. I see the FM radio was worked out after we thought it was impossible.
My rom and radio for the Tilt2 are in my signature. Any hope of updating it for 3G speeds?

It's by hardware. I have both phones as well due to that scenario.
Sent from my PC36100 using XDA Premium App

FireRaider said:
So I finally called ATT and got the subsidy unlock code for my Tilt2.
I popped in a Tmobile sim and it instantly works fine in every function except the connections speed. I am getting Edge only.
My question is, Can this be improved by the addition of a more recent radio? Or am I stuck with Edge due to the hardware in the ATT version of the phone?
I haven't played with this phone for almost a year except for a week in December or so when I reflashed to FireStorm 7.4 while my Captivate had crapped out. So I am kinda out of the loop on this. I was told the Captivate can't run Tmobile 3G no matter what radio I run. But I was hoping since the Tilt2 has been out so long someone might have figure out something. I see the FM radio was worked out after we thought it was impossible.
My rom and radio for the Tilt2 are in my signature. Any hope of updating it for 3G speeds?
Click to expand...
Click to collapse
Tmobile offers 3G on 1700 MGHZ and ATT is on 850 or 1900. The ATT phone does not have 1700, so there is no hope of your device working on TMO 3G in the Americas.
Edge is all you will get, as TMO still has the quad band GSM capability.

Thanks guys. I guess the extra sim with data is not all that handy then.
It still seems odd that even by flashing a new radio it wont work. I have digital radio equipment (scanners, Ham Radio) that has huge bandwidth and I would think that modern cell phones would have the same capability. But obviously it doesnt work.
Do the international versiopns of the phone have the extended frequency range capability or is it still the same problem?

The manufacturers are too cheap to enable all the frequency bands.
Actually I suspect there is a setting hidden somewhere in the radio's NVRAM that can change the available frequencies, but nobody has found it. The chipset is the same across most of these models, and obviously the radio's antennas work across all the frequencies (since they already do for 2G). And as one obvious example, the Samsung Vibrant (which was T-Mobile only) can have its radio software-unlocked to work with other 3G frequencies.

highlandsun said:
The manufacturers are too cheap to enable all the frequency bands.
Actually I suspect there is a setting hidden somewhere in the radio's NVRAM that can change the available frequencies, but nobody has found it. The chipset is the same across most of these models, and obviously the radio's antennas work across all the frequencies (since they already do for 2G). And as one obvious example, the Samsung Vibrant (which was T-Mobile only) can have its radio software-unlocked to work with other 3G frequencies.
Click to expand...
Click to collapse
Interesting. My other phone is a Captivate, which is pretty much the same as the Vibrant. I have been looking into a dual Sim adapter to run both my ATT and TMO sims in the same phone. I was told the Captivate cannot run on the TMO 3G frequencies. I will have to look into this further. That is very good information. Thanks.

FireRaider said:
Interesting. My other phone is a Captivate, which is pretty much the same as the Vibrant. I have been looking into a dual Sim adapter to run both my ATT and TMO sims in the same phone. I was told the Captivate cannot run on the TMO 3G frequencies. I will have to look into this further. That is very good information. Thanks.
Click to expand...
Click to collapse
Galaxy-S Unlock http://forum.xda-developers.com/showthread.php?t=761045
Debug menu http://www.howardforums.com/showthr...850mhz-and-1900mhz-bands-too.-Works-on-ATT-3g.

highlandsun said:
The manufacturers are too cheap to enable all the frequency bands.
Actually I suspect there is a setting hidden somewhere in the radio's NVRAM that can change the available frequencies, but nobody has found it. The chipset is the same across most of these models, and obviously the radio's antennas work across all the frequencies (since they already do for 2G). And as one obvious example, the Samsung Vibrant (which was T-Mobile only) can have its radio software-unlocked to work with other 3G frequencies.
Click to expand...
Click to collapse
I know where that setting is but the limitation seems to be in hardware.
either that, or there is a lot more hacking required than just changing the NV setting.

Hey, care to share? Can this setting be toggled using e.g. AT+HTC_DM? Is it a no-op or is there any visible effect from changing it?
Sent from my MSM using Tapatalk

[Q] Does SG2 offer faster 4g than other phones?

I'm curious, haven't been able to find an answer by googling. I thought I remembered the guy in the TMO store saying that one of the features of the SG2 is that it is capable of higher data speeds. What I'm not sure of, is whether he was talking about TMO's 4G network in general, or the specific capabilities of the SG2 to achieve higher speeds.
For example, would I be able to attain higher 4G speeds on the SG2 than I would on my old Mytouch 4G if the signal strength were equal?

yes
the SGS2 & HTC Amaze run on the HSPA 42 when I think all other run on the 14 or 21...I forget the exact number

JaY iZz BaKk said:
yes
the SGS2 & HTC Amaze run on the HSPA 42 when I think all other run on the 14 or 21...I forget the exact number
Click to expand...
Click to collapse
Right, that sounds familiar. So the older phones aren't capable of reaching the faster speeds; so even if TMO's 4G (or H or whatever you want to call it) network improves, older phones won't be able to utilize the speed bump...I'm trying to decide whether or not to keep the phone and that's a pretty good incentive right there.

sunsean said:
Right, that sounds familiar. So the older phones aren't capable of reaching the faster speeds; so even if TMO's 4G (or H or whatever you want to call it) network improves, older phones won't be able to utilize the speed bump...I'm trying to decide whether or not to keep the phone and that's a pretty good incentive right there.
Click to expand...
Click to collapse
Unlike lte and wimax. Hspa+ affects all 3 capable devices though not much you do get a slight increase in 3g speeds. Since Hspa + is just upgraded 3g.
Sent from my SGH-T989 using xda premium

it really comes down to which area you are using your data on, the phone is able to go max 42 Mbps
but there's no network in the world, at this time, that can really provide the full speed
even LTE can hardly provide what it advertises
so people get horrible LTE speed, some get great speed, same goes with 4G devices some people can get really fast, some other can only get average

Chinese phone on Verizon 4g LTE

I've been doing some reserach and thinking that in the future when my phone breaks I'd like to get take a gamble and try one of those Chinese phones. I'd like to keep my Verizon's unlimited data plan with the 4G LTE. I was refered to this site and told to ask here about ROMs and Kernals to conver the phone's 4G frequency to 700mhz to match Verizons. I have yet to find many chinese phones that run on 4G and have found none that run on the 700mhz frequency. So my next plan is to reprogram the phone to run on the Verizon frequency.
Now I have the Droid Razr with 4G. It has a SIM but I was reading that the GSM was disabled so the phone just runs on the CDMA network. Correct me if it's wrong, but that's my understanding for the time being. Anyway I'm looking to reprogram a Chinese phone to someday replace my Droid Razr. If anyone can point me in the right direction of ROMs of kernals that would be fantastic, even some direction on the right devics would be fine too.
Thank you for your time.

Does anyone have any input on this? Is it even possible?

i dont think is possible because frequencies are hardware based

I was told I just needed a new kernal and ROM. I understand that the hardware is designed to run on a few different frequencies and that it just needed to be reprogramed. Can anyone confirm this?

Bump

Bump

I'm looking to do the same. I'm not due for an upgrade until next year and my Galaxy Nexus flash memory is failing. I only need something to carry me over until my renewal, and I'm not going to buy an S4 or something for $600 until then... a ~$200 knock-off with decent hardware would be fun to play with, easy to carry and can be handed down to a kid on a prepaid network later (or used simply as a wifi/media/GPS device). Only problem is that it's hard to tell what is supported and what is not.
Any insight from those more experienced would be appreciated.