[q] HTC EVO Design 4G Firmware - EVO 4G Q&A, Help & Troubleshooting

is there a way to get it working with my tmobile sim(family mobile?)

Doubtful. I'm no dev but I don't think cdma systems and roms cant run on gsm phones. I may be wrong though.
We're comin from a pure power source.

The sim in the dual band phones I believe will only work if the cdma is activated that's how it worked on my blackberry tour world edition which was dual band GSM/cdma but the GSM wouldn't work without cdma being active so I doubt the design will work on tmo the dual band in it is basically for when you travel to a GSM only location but still have cdma service they come with a sprint sim card that basically unlocks roaming on GSM towers
We are legion, for we are many

Related

Anyone got their CDMA TP2 working on a US GSM carrier?

Just as the title asks, has anyone been able to unlock their Sprint Touch Pro 2, since Verizon's isnt out yet, to work on a US GSM carrier such as AT&T or T-Mobile?
Are the bands on the CDMA TP2s compatible with any of the 3G GSM networks, such as the 850/1700/1900/2100?
I just hate the fact that the GSM TP2s dont come with the 3.5mm headjack, but I wont bother with the CDMA TP2s if they cant work on a 3G GSM network.
Thanks!
Daniel
from the specs that ive found online, especifically the "insanely detailed review" that comes up when doing a google serch for sprint thouch pro 2 review. the cdma version will only support edge speeds.
I tried a canadian CDMA TP2 on a canadian GSM provider and only saw the E icon too. I'm in Oz now and have H full time. There are some radio settings in the GSM section of the phone options that I am gonna play with when I get home to see if it makes any difference. But it looks like it doesnt support 3G speeds in NA. Maybe after hard-spl, maybe radios simply missing?
I used my unlocked Telus TP2 with AT&T when I roam in the states. My device is unlocked and I have an AT&T SIM card. The sad thing as is noted 3G does not work.... gotta get that thing to work in future fixes.
Hardware issues
It is a hardware issue and will never be fixed. Our crappy US companies force HTC to cripple devices to try to limit our choice of phones we use on their networks!

CONFUSED need HELP

ok so i am so confused now, this is my problem: i have a sprint touch pro 2 and wanna put android on it, i am currently on t-mobile, which build do i use the GSM build or CDMA build? i installed both and still not getting my t-moble carrier signal
does sprint have sim card? If not, you should install cdma version
sprint doesnt have a sim card im have a tmobile sim car don it
You have a Sprint branded RHOD400, which is one of the CDMA Worldphone devices capable of operating on either CDMA or GSM. Because your device has both CDMA and GSM capabilities, as opposed to the GSM exclusive variants of the Rhodium, your device will be referred to as a CDMA device on this forum (despite the fact it has GSM capabilities).
Therefore, you should install the CDMA version. Though if you use Reefermattness's package, the only thing you should do differently from a GSM handset is to check the "Force CDMA" checkbox after selecting your keyboard map.
ok i redid it with the cdma version, now cant cannot to tmobile, sorry but im a real noob at this :/

[Q] HTC evo 4G for GSM network world wide

hi friend,
Did you know that HTC Evo 4G working with GSM world wide or not ?
How to unlock it ?
James
The evo does not have a gsm antenna, so no it will not work on any gsm network.
It's not a matter of "unlocking" it, but rather a simple hardware limitation. CDMA and GSM operate on different radio frequencies, and therefore require different hardware.
jame_2d said:
hi friend,
Did you know that HTC Evo 4G working with GSM world wide or not ?
How to unlock it ?
James
Click to expand...
Click to collapse
The HTC Desire HD is the GSM equivalent of the Evo. Samsung also has the Galaxy S series of phones which are somewhat comparable.
I seen people making it pocket and recently people making it boost mobile and everything is working fine i was surprise i wonder how they did it
Boost mobile is a CDMA network which is the same frequencies that Sprint uses. Boost is also owned by Sprint so that may be why you are seeing that. In the U.S. CDMA Networks are U.S. Cellular, Sprint, Boost, Verizon, Cricket. But many of those use different frequencies and all CDMA devices do not use SIM Cards (GSM) unless theyare Quad-Band World Phones which the EVO 4G is not.
Sorry

[Q] CDMA to GSM - is there any possibility

is there a possibility to make usable a CDMA phone to work in GSM...?
That depends there are patches some work but it depends on the the firmware like ics jb or gb I'm trying to get GSM to work on CDMA
Sent from my R800x using xda premium
darkharbinger81 said:
That depends there are patches some work but it depends on the the firmware like ics jb or gb I'm trying to get GSM to work on CDMA
Sent from my R800x using xda premium
Click to expand...
Click to collapse
so can u tell me where should be directed if u know for more information about this problem...?
I thought GSM required sim cards?
Sent from my SPH-L710 using xda premium
Yea, sim cards, frequencies, etc...
There is a lot more involved in the two different technologies than just "cooking" up a ROM.
I don't believe it possible to change a phone from gsm to CDMA and vice versa. Nor can it be tdma, or any other wireless technology. They operate on different bandwidths.
Think of it as attempting to transmit FM radio on a AM station.
Sent from my PC36100 using Tapatalk 2
cbucz24 said:
Yea, sim cards, frequencies, etc...
There is a lot more involved in the two different technologies than just "cooking" up a ROM.
I don't believe it possible to change a phone from gsm to CDMA and vice versa. Nor can it be tdma, or any other wireless technology. They operate on different bandwidths.
Think of it as attempting to transmit FM radio on a AM station.
Sent from my PC36100 using Tapatalk 2
Click to expand...
Click to collapse
Chuck Norris listens to AM radio on his FM radio...
Sent from my SPH-L710 using xda premium
cbucz24 said:
Yea, sim cards, frequencies, etc...
There is a lot more involved in the two different technologies than just "cooking" up a ROM.
I don't believe it possible to change a phone from gsm to CDMA and vice versa. Nor can it be tdma, or any other wireless technology. They operate on different bandwidths.
Think of it as attempting to transmit FM radio on a AM station.
Sent from my PC36100 using Tapatalk 2
Click to expand...
Click to collapse
Lets hope darkharbinger81 to make smth with his patches
Sent from my HTC Desire using xda premium
Two basic technologies in mobile phones, CDMA and GSM represent a gap you can't cross. They're the reason you can't use AT&T phones on Verizon's network and vice versa.CDMA (Code Division Multiple Access) and GSM (Global System for Mobiles) are shorthand for the two major radio systems used in cell phones. Both acronyms tend to group together a bunch of technologies run by the same entities. In this story, I'll try to explain who uses which technology and what the real differences are.
Which Carries are CDMA? Which are GSM?
Five of the top seven carriers in the U.S. use CDMA: Verizon Wireless, Sprint, MetroPCS, Cricket, and U.S. Cellular. AT&T and T-Mobile use GSM.
That means we're mostly a CDMA country. It also means we're not part of the norm, because most of the world is GSM. The global spread of GSM came about because in 1987, Europe mandated the technology by law, and because GSM comes from an industry consortium. What we call CDMA, by and large, is owned by chipmaker Qualcomm. This made it less expensive for third parties to build GSM equipment.
There are several variants and options carriers can choose, like toppings on their technological ice cream. In this story we'll be talking about U.S. networks.
For call quality, the technology you use is much less important than the way your carrier has built its network. There are good and bad CDMA and GSM networks, but there are key differences between the technologies. Here's what you, as a consumer, need to know.
It's much easier to swap phones on GSM networks, because GSM carriers put customer information on a removable SIM card. Take the card out, put it in a different phone, and the new phone now has your number. What's more, to be considered GSM, a carrier must accept any GSM-compliant phone. So the GSM carriers don't have total control of the phone you're using.
That's not the case with CDMA. In the U.S., CDMA carriers use network-based white lists to verify their subscribers. That means you can only switch phones with your carrier's permission, and a carrier doesn't have to accept any particular phone onto its network. It could, but typically, U.S. carriers choose not to.
In other words, you can take an unlocked AT&T phone over to T-Mobile (although its 3G may not work well because the frequency bands are different). You can't take a Verizon phone over to Sprint, because Sprint's network rejects non-Sprint phones.
3G CDMA networks (known as "EV-DO" or "Evolution Data Optimized") also, generally, can't make voice calls and transmit data at the same time. Once more, that's an available option (known as "SV-DO" for "Simultaneous Voice and Data Optimization"), but one that U.S. carriers haven't adopted for their networks and phones.
On the other hand, all 3G GSM networks have simultaneous voice and data, because it's a required part of the spec. (3G GSM is also actually a type of CDMA. I'll explain that later.)
So why did so many U.S. carriers go with CDMA? Timing. When Verizon's predecessors and Sprint switched from analog to digital in 1995 and 1996, CDMA was the newest, hottest, fastest technology. It offered more capacity, better call quality and more potential than the GSM of the day. GSM caught up, but by then those carriers' paths were set.
It's possible to switch from CDMA to GSM. Two carriers in Canada have done it, to get access to the wider variety of off-the-shelf GSM phones. But Verizon and Sprint are big enough that they can get custom phones built for them, so they don't see the need to waste money switching 3G technologies when they could be building out their 4G networks.
dimmy1405 said:
Lets hope darkharbinger81 to make smth with his patches
Sent from my HTC Desire using xda premium
Click to expand...
Click to collapse
How about I am currently porting a gsm rom to cdma?
Sent from my R800x using xda premium
But we are talking about cdma to gsm, more accurate evo 4g verizon operator...
Sent from my HTC Desire using xda premium
darkharbinger81 said:
How about I am currently porting a gsm rom to cdma?
Sent from my R800x using xda premium
Click to expand...
Click to collapse
Porting a GSM rom to CDMA is not the same thing as using a CDMA phone on a GSM network.
Diablo67 said:
Two basic technologies in mobile phones, CDMA and GSM represent a gap you can't cross. They're the reason you can't use AT&T phones on Verizon's network and vice versa.CDMA (Code Division Multiple Access) and GSM (Global System for Mobiles) are shorthand for the two major radio systems used in cell phones. Both acronyms tend to group together a bunch of technologies run by the same entities. In this story, I'll try to explain who uses which technology and what the real differences are.
Which Carries are CDMA? Which are GSM?
Five of the top seven carriers in the U.S. use CDMA: Verizon Wireless, Sprint, MetroPCS, Cricket, and U.S. Cellular. AT&T and T-Mobile use GSM.
That means we're mostly a CDMA country. It also means we're not part of the norm, because most of the world is GSM. The global spread of GSM came about because in 1987, Europe mandated the technology by law, and because GSM comes from an industry consortium. What we call CDMA, by and large, is owned by chipmaker Qualcomm. This made it less expensive for third parties to build GSM equipment.
There are several variants and options carriers can choose, like toppings on their technological ice cream. In this story we'll be talking about U.S. networks.
For call quality, the technology you use is much less important than the way your carrier has built its network. There are good and bad CDMA and GSM networks, but there are key differences between the technologies. Here's what you, as a consumer, need to know.
It's much easier to swap phones on GSM networks, because GSM carriers put customer information on a removable SIM card. Take the card out, put it in a different phone, and the new phone now has your number. What's more, to be considered GSM, a carrier must accept any GSM-compliant phone. So the GSM carriers don't have total control of the phone you're using.
That's not the case with CDMA. In the U.S., CDMA carriers use network-based white lists to verify their subscribers. That means you can only switch phones with your carrier's permission, and a carrier doesn't have to accept any particular phone onto its network. It could, but typically, U.S. carriers choose not to.
In other words, you can take an unlocked AT&T phone over to T-Mobile (although its 3G may not work well because the frequency bands are different). You can't take a Verizon phone over to Sprint, because Sprint's network rejects non-Sprint phones.
3G CDMA networks (known as "EV-DO" or "Evolution Data Optimized") also, generally, can't make voice calls and transmit data at the same time. Once more, that's an available option (known as "SV-DO" for "Simultaneous Voice and Data Optimization"), but one that U.S. carriers haven't adopted for their networks and phones.
On the other hand, all 3G GSM networks have simultaneous voice and data, because it's a required part of the spec. (3G GSM is also actually a type of CDMA. I'll explain that later.)
So why did so many U.S. carriers go with CDMA? Timing. When Verizon's predecessors and Sprint switched from analog to digital in 1995 and 1996, CDMA was the newest, hottest, fastest technology. It offered more capacity, better call quality and more potential than the GSM of the day. GSM caught up, but by then those carriers' paths were set.
It's possible to switch from CDMA to GSM. Two carriers in Canada have done it, to get access to the wider variety of off-the-shelf GSM phones. But Verizon and Sprint are big enough that they can get custom phones built for them, so they don't see the need to waste money switching 3G technologies when they could be building out their 4G networks.
Click to expand...
Click to collapse
Nice info. Knew some of that, but not all. Learned some good info. Thanks
TEAM MiK
MikROMs Since 3/13/11

Can this phone be used on other carriers?

Hi, I am sorry if this has been asked already. I am wondering whether a Sprint Samsung S6 Edge PLUS can be unlocked(Via Sprint, not third party) to work on other networks? I am currently on Verizon and am considering buying my friend's S6 Edge plus because he gave me a good deal. Thanks for your time.
Sprint would unlock it . Its happened to a few people i know who purchased it outright . Call sprint and ask for the device to be unlocked domestically
USA Prepaid?
Can this be done to use a Sprint S6 on a USA prepaid carrier?
What if phone is brand new and never activated on sprint network?
It'll work in the USA but no lte support as of yet for sprint unlocked to gsm
Yes and No, the G925P is a Sprint phone meaning its a CDMA Phone, Verizon uses the same technology on their network, CDMA phones have to be reprogrammed to work on another carrier using a CDMA Network. But this phone is a dual GSM/CDMA Phone, meaning since GSM phones use a SIM Card so you can if Sprint Unlocks the phone because you own it outright you can go to another GSM carrier and some or all the features might work, this phone is different than the G925F international GSM phone which will work almost anywhere in the world as long as its connecting to a GSM Network. All you do then is just change the SIM card and your connected to that carrier. If you want to be on Verizon its best to just get a G925V from them because its already programmed for Verizon rather than trying to make this Sprint Phone work on their CDMA Network. It can be done but to reprogram the damn thing is not that easy and very time consuming for a newbie to tackle. Sell it, get a Verizon phone if you like it that much. or switch to Sprint.
here is an easy way to look at this, LTE is built on GSM hence why the new sprint/verizon LTE phones have SIM cards, you can try to switch to AT+T or T-Mobile but you may loose 2g-3g connectivity, maybe, maybe not all depends on the phone variant, so lets look at Verizon
Verizon -
CDMA/LTE
uses 700 MHZ (band 13) and 1700 MHZ (band 4)
Sprint-
CDMA/LTE
uses 800 MHZ and 1900 MHZ (band 26 and 25)
and 2.5 GHZ for Sprint Spark (band 41)
so you see they operate on different bands, I noticed not all S6's have the same bands either, depends on the carrier and these phones are made for them to be different, so to find a phone that has all of these bands would work in theory on any network but with CDMA they have electronic serial numbers embedded in the device and you will have to reprogram the radio/chip in order to work on another carrier. So to answer can I use a sprint phone on verizon would be a simple NO.

Categories

Resources