[Q] GSM or CDMA? - Motorola Photon Q 4G LTE

ive just unlocked and rooted my Motorola Photon Q 4G LTE. now im about to mod it with CyanogenMod
The phone was previously on sprints network which is CDMA. I plan on flashing the phone to a different network.
Which phone network is easier to flash to. And should I go with GSM or CDMA. thanx in advance.

sinkai said:
ive just unlocked and rooted my Motorola Photon Q 4G LTE. now im about to mod it with CyanogenMod
The phone was previously on sprints network which is CDMA. I plan on flashing the phone to a different network.
Which phone network is easier to flash to. And should I go with GSM or CDMA. thanx in advance.
Click to expand...
Click to collapse
What is your provider which you are flashing the phone to?
Also, just FYI - hacking CDMA devices is one of those borderline illegal things - mainly because it involves ESN swaps.
Hacking this phone for GSM is perfectly legal, however, because you are not changing the serial number of the device - merely swapping the SIM cards. Just be warned, you will have to do some hardware modification in order to swap SIM's.

Related

Changing the CDMA Radio

I just got off the phone with Telus and what they told me is that they are releasing ANOTHER TP2 on the GSM network and that I would have to buy another phone TP2 just to get onto the GSM network.
This being said, is there any way to modify the radio signal in my CDMA phone to read both CDMA and GSM, or atleast get more speed out of my phone for connectivity to the net?
*update
I just got off the phone with HTC and the lady I spoke with told me, that to change the radio frequency I just had to change the ROM. That being said IF, I put a Telus HSPA ROM on there the phone should be capable of working on the network. Now that being said. If this is possible would it not be possible to run on both networks, CDMA and HSPA, making the signal control software dependent, meaning I have CDMA controls for standard phone calls and HSPA for running the highspeed network?
Update in previous post.
Eazy, just HardSPL and security unlock your radio bro...Only then you can use the GSM networks in your country (I'm guessing it's US)
But you can only activate one at a time. Either GSM only or CDMA only..CMIIW..
Just my 2 cents
Actually it's Canada
Right but if I unlock the phone, and switch it back and forth on and off the networks, how would that affect my account, could I hide the fact i was doing this?
slight22 said:
Actually it's Canada
Right but if I unlock the phone, and switch it back and forth on and off the networks, how would that affect my account, could I hide the fact i was doing this?
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Click to collapse
I have this phone on Telus...I got it unlocked and I put my work sim card in this phone and it's on rogers. I switch networks when necessary....If you get a Telus sim card you would be able to use it GSM.
You should be able to pick which network you use. I saw it in phone settings, I think.
bundybp said:
I have this phone on Telus...I got it unlocked and I put my work sim card in this phone and it's on rogers. I switch networks when necessary....If you get a Telus sim card you would be able to use it GSM.
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Click to collapse
TELUS does not provide GSM at all. They are CDMA and UMTS.
So does this mean its possible. If i have a CDMA Sprint HTC Touch pro 2. That i have the potential of using it on At&t in the US?? All i have to do is unlock it?? Any information would be greatly appreciated.. Thanks!!
And if one does unlock a radio on said Telus phone, can one use both radio frequencies, thus enabling both CDMA and HSPA frequencies?
Spike15 said:
TELUS does not provide GSM at all. They are CDMA and UMTS.
Click to expand...
Click to collapse
So Telus new 3G network is not GSM? It does have drop down menu showing "Send SMS over" GMS and CDMA. GSM is selected by default.

what to do?

I have an unlocked tp and i talked with verizon trying to set it up to use it on there network and they say i cant use it with them even tho i have the good esn number and all? what should i do have you guys heard of this or was that guys just being stupid?
I think im going to resell it or trade it for a verizon version. if any one wants to trade for a sprint version thats unlocked and comes with many extras in the orignal bo x with a 1 gig card and the mighty rom with android I will sell or trade it for 160 its in great condition Davey
there are two types of wireless networks in the world: GSM and CDMA. your phone is GSM in hardware = can't be changed), and verizon's network is CDMA = not comaptible.
correct me if im wrong but the sprint is the cdma and the att is the gsm. this phone has mightys cdma rom on it. it would have bricked the phone if it was gsm right at least that is what all the info i have read has told me. I have even flashed it to the stock verizon rom which is cdma and it was fine. I have found a few pages in the wiki about how to use it on the verizon network i will try they look kinda complicated tho.
DadamsJR said:
correct me if im wrong but the sprint is the cdma and the att is the gsm. this phone has mightys cdma rom on it. it would have bricked the phone if it was gsm right at least that is what all the info i have read has told me. I have even flashed it to the stock verizon rom which is cdma and it was fine. I have found a few pages in the wiki about how to use it on the verizon network i will try they look kinda complicated tho.
Click to expand...
Click to collapse
sprint & verizon are cdma, t-mobile & at&t are gsm.
i haven't tried flashing a cdma rom on my fuze... i know it is highly unrecommended. but i am sure there is a way to tell if ur phone is gsm or cdma, probably by looking at the sticker under that battery.
Dad is correct.. Sprint is CDMA jsut like VZW... and there is an easier way to tell if it is GSM or CDMA..... Take off the batter cover.... Do you see a Sim Card? If Yes, then it is a GSM... If No, Then CDMA unless it is GSM and no sim card is in it.. then power it up... it will say SIM CARD MISSING... That will tell you that it is GSM.....
Hope that helps.
I know its cdma for a fact it has sprint across the front and it has a cdma rom on it

[Q] Us Cellular phone cdma with sim slot (gsm option)

Ok, so I've searched all over and haven't had much luck. I have no experience with cdma phones, as t mobile is all I've ever had.
I was given a new US Cellular HTC Hero s. I opened it up and saw the sim slot and though, sweet I can replace my sensation with it (I smashed the screen pretty bad). Well, that was a no go, as the phone is cdma. Looking online though, I see it can run in gsm (options global mode, cdma mode, gsm / umts mode. I unlocked the bootloader using the htc site (not sure it matters) and popped in my sim card again, and tried both global and gsm mode, though neither got signal or would dial out. (under networks, it had the tmo apn info.)
So, is the GSM mode offered on this phone only for non US bands? Would a custom rom (now or down the road) allow it to work on tmo? I read something about the HTC Merge and someone being able to switch out the modem in the rom that allowed it to work in the US, but that is well beyond me. I can follow instructions, work ADB and flash roms.. but thats about it.
Is it possible, or will it soon be, to have this phone work on GSM or am I just stuck trying to sell it as a us cellular phone (or perhaps another cdma carrier.. like I said, I don't know anything about cdma)
As a Canadian I'm not sure about who owns US cellular or if they are their own company but I'm guessing they work like Verizon world phones. They have sim card slots but will work only outside of the US. If those verizon phones are used within the States, they will only pick up Verizon's frequency, as opposed to T-Mobile or AT&T where you can unlock them and use them with any GSM carrier within the States. But yeah, you can unlock it and it will work with any GSM carrier outside the States but within the States I think it will only work under US Cellular CDMA network...please correct me if I'm wrong.
That's right, u.s. cdma "world phones" have gsm radios but are locked down from connecting to gsm networks in the u.s. This is not just the normal sim lock found on gsm phones but they are hard coded to ignore u.s. gsm networks.
Some have been unlocked to work on any network through various methods including flashing a modem from a non-us varient of the same phone and other hacks. I can't comment specifically on this phone however.
Sent from my SPH-D700 using XDA App
Well, that points me in the right direction, and confirms what I read about swapping modems (on the other phone mentioned).
So basically it's software telling it not use a certain frequency, and not that the phone itself is incapable of picking it up (had my doubts about that)
Pretty shady the way phone companies are allowed to operate (don't get me started on my unlimited internet in my contract [pre data caps in tmo]. "Hey! check it out, this phone uses data 5 times faster than your old one, oh, and you get half as much too) sorry, end of rant.
I'll keep searching, and post if I find something..
On a side note, can cdma phones be flashed to another cdma carrier like verizon or sprint, or is it the same deal, coded to only use a certain frequency range?
only thing I've heard of is flashing sprint and verizon phones to cricket, metro pcs and boost.

LG G2 D800 now Unlocked... question regarding CDMA

Im about to unlock my phone for use with Verizon, and I wanted to double check something since I'll have to wait until later to do it.
I was informed that my ATT LG G2 wouldn't be compatible with a Verizon SIM since it's CDMA, but I searched around and it appears as though this phone supports the CDMA network.
Would it work?
pootio said:
Im about to unlock my phone for use with Verizon, and I wanted to double check something since I'll have to wait until later to do it.
I was informed that my ATT LG G2 wouldn't be compatible with a Verizon SIM since it's CDMA, but I searched around and it appears as though this phone supports the CDMA network.
Would it work?
Click to expand...
Click to collapse
+1
I would like to know
SIM and CDMA are not the same thing. Verizon uses SIM cards with 4G LTE part of their service. If have a phone that's only 3G then that's CDMA and don't have a SIM card. Also Verizon only "allows" Verizon branded phones on their network. Which is not to hard to get around for the 3G CDMA no SIM needed service BUT I am not sure "IF" its "POSSIBLE" or "HOW TO" if you want to use it on Verizons 4G LTE like I do!
I'm going to ask here and in a another forum that has a lot of LG G2 activity.
The D800 model will not work on Verizon's network, as the D800 does not support CDMA. It doesn't matter if it is unlocked, it will only work GSM networks.
Sent from my LG-D800

Verizon to sprint

guys
just a general question on how cdma networks and phones work. Today, verizon 4g phones come with a sim card. If that's the case, why are there two editions of most phones - one for verizon and another for sprint? Are the two carriers still using cdma?
Thx
GSM & CDMA Explanation
sam008 said:
guys
just a general question on how cdma networks and phones work. Today, verizon 4g phones come with a sim card. If that's the case, why are there two editions of most phones - one for verizon and another for sprint? Are the two carriers still using cdma?
Thx
Click to expand...
Click to collapse
There are two types of mobile cell phone communication technology, GSM and CDMA. CDMA phones cannot run on GSM networks and visa versa. While there are few advantages, GSM is considered to be better because it has LTE support, and used internationally.
Carriers like AT&T and T-Mobile use GSM, while Verizon and Sprint use CDMA. GSM uses SIM cards, and CDMA phones have a programmable radio inside of the phone.
But, Verizon and Sprint use SIM cards in there newer phones. They use GSM IN ADDITION to CDMA. The SIM card only gives the phone LTE though, because CDMA does not support it.
So, yes Verizon and Sprint use CDMA, for call, text, data, internet, 4G and they use GSM for LTE only.
GSM carriers (AT&T and T-Mobile), use only a SIM card, and the GSM technology for call, text, data, internet, 4G, AND LTE.
I hope this answered your question and heightened your knowledge!
can a nexus 6 purchased from verizon be used on the sprint network - thx
Yes, if unlocked
Yes, they will usually work but only if they are unlocked. Different carriers have different policies and requirements that you must meet before they give you the unlock code to bring the phone to another carrier.
You're at an advantage using the Nexus 6, unlocking solutions are plentiful. Go to the N6 forum for more. If you plan on going from CDMA to CDMA you should be gold (per the carriers you mentioned).

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