I've been trying to Google this and got no results. All the youtubers I asked and all the Google searches I did and I got the same result. The cdma e3d is for the USA and gsm is for the rest of the world...ARRRR! I ALREADY KNOW THAT!
So can someone please explain the internal differences between the cdma and gsm 3d and why can't gsm users flash cdma Roms (if the radio remains untouched). I'm sure I'm not the only 1 wondering why the cdma EVO 3s gets so many more roms than gsm users.
Please don't flame at me if this question has been asked elsewhere.
Sent from my HTC EVO 3D X515m using XDA App
I was also searching for this and already found out that its kernel related because it has some other drivers and stuff running to maintain the cdma network.
Theres kernel and framework differences. Even if you were to extract a gsm kernel, and put it into a cdma.rom, it still wouldn't work properly. I've looked at the frameworks for both phones, and there was a lot more differences in the code than I had previously anticipated.
The reason there are more cdma roms, is simply because there are more devs/chefs/tweakers that use/have cdma phones.
Also many old & new developers for the CDMA EVO 3D came from the EVO 4G, which had a huge following on the same carrier.
It was like a migration of birds.
Sent from my BEASTO 3D using XDA Premium App
Noiro said:
Also many old & new developers for the CDMA EVO 3D came from the EVO 4G, which had a huge following on the same carrier.
It was like a migration of birds.
Click to expand...
Click to collapse
Ah, that explains it. I was wondering why there is so much more development going on for the CDMA E3D than the GSM, seeing as how Sprint is the only carrier using the CDMA. Stupid, multiple standards!
saltorio said:
Ah, that explains it. I was wondering why there is so much more development going on for the CDMA E3D than the GSM, seeing as how Sprint is the only carrier using the CDMA. Stupid, multiple standards!
Click to expand...
Click to collapse
Wrong.
Verizon and U.S Cellular both use CDMA.
Noiro said:
Also many old & new developers for the CDMA EVO 3D came from the EVO 4G, which had a huge following on the same carrier.
It was like a migration of birds.
Sent from my BEASTO 3D using XDA Premium App
Click to expand...
Click to collapse
Migrate??? More like ransacked. This forum was full before the phone even came out lmao.
Coffee and Hip-Hop!!!
iCaptivate said:
Wrong.
Verizon and U.S Cellular both use CDMA.
Click to expand...
Click to collapse
Cricket, Metropcs as well.
knowledge561 said:
Migrate??? More like ransacked. This forum was full before the phone even came out lmao.
Coffee and Hip-Hop!!!
Click to expand...
Click to collapse
EL-OH-EL...
..thanks...hahaha, that was great.
iCaptivate said:
Wrong.
Verizon and U.S Cellular both use CDMA.
Click to expand...
Click to collapse
But do Verizon, US Cellular, or MetroPCS offer the EVO 3D? That's what we're talking about here, the EVO 3D.
Vinchenzop said:
Theres kernel and framework differences. Even if you were to extract a gsm kernel, and put it into a cdma.rom, it still wouldn't work properly. I've looked at the frameworks for both phones, and there was a lot more differences in the code than I had previously anticipated.
The reason there are more cdma roms, is simply because there are more devs/chefs/tweakers that use/have cdma phones.
Click to expand...
Click to collapse
Thank you soooooooo much for that (ill make sure I whack the that thank button when I get on a computer. I was thinking something to do with kernel and framework but I never had time to check.
Sent from my HTC EVO 3D X515m using XDA App
I stand by my comment about stupid multiple standards. Get with the rest of the world, U.S. carriers! Stop being different just for the sake of being different.
Now, not knowing anything at all about ROM cooking, will it ever be possible that ROMs for the E3D may be able to support both CDMA and GSM, or is there no way to code that kind of logic?
saltorio said:
I stand by my comment about stupid multiple standards. Get with the rest of the world, U.S. carriers! Stop being different just for the sake of being different.
Now, not knowing anything at all about ROM cooking, will it ever be possible that ROMs for the E3D may be able to support both CDMA and GSM, or is there no way to code that kind of logic?
Click to expand...
Click to collapse
Well kinda. It's not hard to write the ROM for the gsm EVO if you made a ROM for the cdma 1. But It's hard because It's gonna require testing on a device which the cdma dev does not have.
Sent from my HTC EVO 3D X515m using XDA App
Related
nuff said..
Not for long now its been discovered how to port cdma to gsm
Sent from my HTC EVO 3D X515m using XDA Premium App
geordie 34 said:
Not for long now its been discovered how to port cdma to gsm
Sent from my HTC EVO 3D X515m using XDA Premium App
Click to expand...
Click to collapse
wont need to start from a scratch but we will need to recompile few components/libraries..
Really looking forward to viper which has been given permission to port to gsm
Sent from my HTC EVO 3D X515m using XDA Premium App
You gotta have permission to work on a GSM?
You have to have permission from the original developer of a ROM to port over their ROM, otherwise you are kanging and not giving proper credit.
私のEVO 3Dから送信される。
Probably because of the carriers? No USA carrier has the gsm. Only rogers from canada for x515a and whatever european ones for the AWS/2100 x515m.
It is more of an exclusive thing to own a gsm 3d in the USA, imo. You have something not many people have.
there are others out there with gsm..
im probably one of em..
dastin1015 said:
You have to have permission from the original developer of a ROM to port over their ROM, otherwise you are kanging and not giving proper credit.
私のEVO 3Dから送信される。
Click to expand...
Click to collapse
I agree. I read it wrong. I thought he wrote that you have to get permission to work on a gsm. My bad.
Maybe because there's 3 times more cdma user than gsm
Sent From My Optimized R3Dimensions
countries not having developers isn't the same as countries not having the device.
i think majority of users, low end ones atleast, have a gsm device. (outside of US and canada)
Hi guys,
Can anyone give me any sort of instructions on how to flash a Sprint HTC Evo 3D over to Straight talk ?
I have the Sprint CMDA HTC Evo 3D, Revolutionary rooted, downgraded HBoot 1.50 to 1.40, S-OFF.
Thanks
coddyycav said:
Hi guys,
Can anyone give me any sort of instructions on how to flash a Sprint HTC Evo 3D over to Straight talk ?
I have the Sprint CMDA HTC Evo 3D, Revolutionary rooted, downgraded HBoot 1.50 to 1.40, S-OFF.
Thanks
Click to expand...
Click to collapse
You cannot.
Straight talk runs on att network so you need a gsm 3d phone.
There is no way to flash cdma to anything but boost, cricket, maybe metro PCS.
The x515a evo 3d would be specific for att bands, x515m for USA T-Mobile bands.
Sent from my HTC EVO 3D X515m using Tapatalk 2
But...
scariola said:
You cannot.
Straight talk runs on att network so you need a gsm 3d phone.
There is no way to flash cdma to anything but boost, cricket, maybe metro PCS.
The x515a evo 3d would be specific for att bands, x515m for USA T-Mobile bands.
Click to expand...
Click to collapse
I would also be interested in this. I just need to know what would need to be changed. Also, there are plenty of "paid" flashing services that use straight talk for the evo 3d. I also happen to own an active CDMA straight talk phone. Im using the crappy flip phone because I am uncertain what settings need to be migrated.
I have the msl # for my phone, so I can access the menus. I am not asking for instructions, just simply 'The PRL needs to be changed, etc. etc." maybe a quicklist ? I love my evo 3d. Help ?
I am also absolutely positive that my current straight talk phone is CDMA. Maybe they have access to a couple of diff. networks ?
If you are not comfortable putting this into a reply, PM me. I am uncertain what they are, but I know there are some boundaries.
I am also a fairly competent engineer, so there would not be any "hand holding" necessarily.
Using qpst it can access all secret programming of phone, there are about a dozen changes done with that program, then finding compatible prl, MSID #, usually ask your provider. It's like your phone number, but not, usually next area code over.
Pull up some YouTube vids, saw it IS possible. Odd cause str8talk in west is using Sims, anyways google always taught me, take guide for OG EVO, same process.
Sent from my HTC EVO 3D X515m using Tapatalk 2
Nevell posted earlier in his thread that he flashed the evo shift to straight talk. http://forum.xda-developers.com/showthread.php?p=27079247 should be close to the same for the 3d.
i rooted my og evo and lost my keys. should this be a concern when rooting the ltevo?
good luck getting that wimax key
v01rider said:
i rooted my og evo and lost my keys. should this be a concern when rooting the ltevo?
Click to expand...
Click to collapse
The eLTEvo does not use WiMax, so it's not a concern. Not sure if/how LTE works with any similarity, but LTE isn't in NYC yet, so I can't check ('cause I rooted yesterday ).
HTH,
-Jerry
I'd like to know too
I'd also like to know if this is a potential issue ... but I suspect that it isn't since LTE would be a different technology. I would hope it would function the same as, say, 3G vs. EDGE or something like that, where it's just a difference in radio.
AFAIK: For anyone that doesn't know, the original EVO required encrypted keys to join the WiMax network, and some methods of rooting/flashing the EVO didn't preserve these keys early on.
This probably will not be an issue as lte is using a sim card that is embedded in the phone. You also might want to pm a modern and ask them to move this to q&a.
Sent from my EVO using xda premium
killakarl said:
This probably will not be an issue as lte is using a sim card that is embedded in the phone. You also might want to pm a modern and ask them to move this to q&a.
Sent from my EVO using xda premium
Click to expand...
Click to collapse
thanks, wasnt sure were to put this. lol...thought rooting would be the best place.
anywho, thanks all. not that i used 4g all that much after rooting. i sure missed the wow factor when i was not in a wifi area.
just wanted to put the topic out there for devs to check into.
Edit: Misread the OP.
No it you don't loose the keys from personal experience from my og evo and the thi thunderbolt, Lte works in a different way kind of like cdma, they will be radios to flash like the OG evo tho
Sent from my EVO using Tapatalk 2
I don't believe that there would be potential issues. If you notice the LTE / EVDO radios coexist seamlessly and I don't believe that it requires a second level of authentication as WiMax did. I have no way of testing and I could be wrong but unless you do something drastic that may affect the radio portion, then I believe that rooting alone should be OK.
I've had this same concern, as I remember all the people who forever bricked their wimax keys on Evo 4g using one if the root methods, and there was no way to know initially because wimax wasn't up and running yet. Just like now.
But, as stated, the LTE radio resides in the SoC, and shouldn't be subject to compromise. From what I understand.
Sent from my EVO using xda premium
I'm rooted, dev unlocked and I flashed another rom while wiping every partition on the phone and can still connect to lte
Doesn't the Evo LTE have a non removable sim that handles LTE registration?
Sent from my EVO using Tapatalk 2
donatom3 said:
Doesn't the Evo LTE have a non removable sim that handles LTE registration?
Sent from my EVO using Tapatalk 2
Click to expand...
Click to collapse
Yes.
Sent from my EVO LTE
If the htc EVO 4G LTE has same hardware and software as htc one xl then y aren't any of the owners of one xl complaining about their 4g? It just doesn't make sense to me y we are all having this problem...
Sent from my EVO using xda app-developers app
cables2590 said:
If the htc EVO 4G LTE has same hardware and software as htc one xl then y aren't any of the owners of one xl complaining about their 4g? It just doesn't make sense to me y we are all having this problem...
Sent from my EVO using xda app-developers app
Click to expand...
Click to collapse
Because the radio is different. At least that's what i'm guessing. Different network different radio.
-Cupper- said:
Because the radio is different. At least that's what i'm guessing. Different network different radio.
Click to expand...
Click to collapse
I thought the EVO used gsm radio for the 4G LTE.. I read somewhere that the phone has an embedded sim card for gsm radio.. That's y I seen the gsm radio frequency on the menu *#*#4636#*#* and if that's the case we shouldn't have this problem... Maybe I miss understood but ill look for the article..
Sent from my EVO using xda app-developers app
cables2590 said:
I thought the EVO used gsm radio for the 4G LTE.. I read somewhere that the phone has an embedded sim card for gsm radio.. That's y I seen the gsm radio frequency on the menu *#*#4636#*#* and if that's the case we shouldn't have this problem... Maybe I miss understood but ill look for the article..
Sent from my EVO using xda app-developers app
Click to expand...
Click to collapse
Whatever you read or think is 100% wrong. The Evo is on Sprint's network which is CDMA. While there may be some GSM elements reported in the phone, it is indeed a CDMA phone. Completely different networks, as any google search would show you.
Have u actually used the Google search cuz this is what u would find... http://forums.androidcentral.com/htc-evo-4g-lte/177031-evo-lte-teardown.html and one from ur very own xda forum... http://forum.xda-developers.com/showthread.php?t=1802714
Sent from my EVO using xda app-developers app
smw6180 said:
Whatever you read or think is 100% wrong. The Evo is on Sprint's network which is CDMA. While there may be some GSM elements reported in the phone, it is indeed a CDMA phone. Completely different networks, as any google search would show you.
Click to expand...
Click to collapse
Now I know sprint uses cdma for their regular services... But for the lte services they need to use the gsm in my understanding...
Sent from my EVO using xda app-developers app
smw6180 said:
Whatever you read or think is 100% wrong. The Evo is on Sprint's network which is CDMA. While there may be some GSM elements reported in the phone, it is indeed a CDMA phone. Completely different networks, as any google search would show you.
Click to expand...
Click to collapse
I think you're 100% wrong and you the one who needs to search.
Sent from my EVO using xda premium
shook187 said:
I think you're 100% wrong and you the one who needs to search.
Sent from my EVO using xda premium
Click to expand...
Click to collapse
I thought you got banned or something?
Sprint LTE does not use GSM.
http://www.gsmarena.com/htc_evo_4g_lte-4665.php
Google search for Evo 4g lte network specs:
http://lmgtfy.com/?q=htc+evo+4g+lte+network+specs
LTE is a variant of utms/gsm. The phone itself is not gsm, there is no way to use the phone on gsm networks. You can't even use LTE on other networks because they all have their own frequencies and differences in their networks
cables2590 said:
Have u actually used the Google search cuz this is what u would find... http://forums.androidcentral.com/htc-evo-4g-lte/177031-evo-lte-teardown.html and one from ur very own xda forum... http://forum.xda-developers.com/showthread.php?t=1802714
Sent from my EVO using xda app-developers app
Click to expand...
Click to collapse
http://lmgtfy.com/?q=htc+evo+4g+lte+network+specs
om4 said:
LTE is a variant of utms/gsm. The phone itself is not gsm, there is no way to use the phone on gsm networks. You can't even use LTE on other networks because they all have their own frequencies and differences in their networks
Click to expand...
Click to collapse
Thank u sir... Somebody that actually answers the question instead of insulting... So with it using a variant of utms/gsm the radios are still different I'm guessing? The only thing I don't understand is I thought the radio was built with the qualcomm chip so if the phones had the same chip then the radio would be similar? Sorry if I'm wrong just trying to grasp an understanding...
Sent from my EVO using xda app-developers app
Similar board design with a soc but its a modular design that allows for custom built hardware. You can have 3 OEMs with 5 different phones each with the same Qualcomm board and soc and they could all be built specifically for one carrier only. GSM is the standard, CDMA is more prevalent in the US.
As Title. I have Sprint Evo 3D 4G, I want to use it for Virgin Mobile. Is it possible of doing so? Will that affect my Virgin Mobile cheap plan? Thanks in advance.
ccheung said:
As Title. I have Sprint Evo 3D 4G, I want to use it for Virgin Mobile. Is it possible of doing so? Will that affect my Virgin Mobile cheap plan? Thanks in advance.
Click to expand...
Click to collapse
CDMA phones can't be "unlocked" like GSM phones can. CDMA phones are identified by the MEID number, and Sprint has a database of these numbers and what brand they are associated with. So they will see you are trying to activate a Sprint-branded phone and Virgin and reject it. Changing they MEID is possible but is illegal in some jurisdictions (Missouri comes to mind), so I won't go any further.
Or you could call up Sprint and ask very nicely if they'll activate it for you anyway. But don't be surprised if they say no.
http://forum.xda-developers.com/showthread.php?t=1974000
Anything you want is yours. All you gotta do is search
Sent from my Evo 3D CDMA using xda app-developers app
kevin130 said:
http://forum.xda-developers.com/showthread.php?t=1974000
Anything you want is yours. All you gotta do is search
Sent from my Evo 3D CDMA using xda app-developers app
Click to expand...
Click to collapse
Thanks.
Should I finish the esn swap first then flash rom? or the other way round?
I see many of the custom CDMA roms are based on Sprint. Does they also work on Virgin Mobile?
What is the stable daily using ROM you are commending?
ccheung said:
Thanks.
Should I finish the esn swap first then flash rom? or the other way round?
I see many of the custom CDMA roms are based on Sprint. Does they also work on Virgin Mobile?
What is the stable daily using ROM you are commending?
Click to expand...
Click to collapse
I'm on MetroPCS and all the Sprint ROMs work for me, they should all work for you too (provided you're flashing CDMA ROMs)
ccheung said:
Thanks.
Should I finish the esn swap first then flash rom? or the other way round?
I see many of the custom CDMA roms are based on Sprint. Does they also work on Virgin Mobile?
What is the stable daily using ROM you are commending?
Click to expand...
Click to collapse
They work perfectly fine on virgin mobile. If you want to get MMS working your gonna have to flash an HTC EVO V ROM. Not sure i can like to another forum but theres a EVO V forum at android forums. Make sure to back up before you flash. The first time i flashed a ROM the ESN changed back. Just the ESN so it was a quick fix.