Would it be possible to activate the GSM/WCDMA radios of this phone?
Eh?
2 versions of this phone.
1. VZW version aka the DROID RAZR/XT912 --> CDMA/LTE radio
2. Global version aka MOTO RAZR/XT910 --> GSM/WCDMA/HSPA
matthew5025 said:
Eh?
2 versions of this phone.
1. VZW version aka the DROID RAZR/XT912 --> CDMA/LTE radio
2. Global version aka MOTO RAZR/XT910 --> GSM/WCDMA/HSPA
Click to expand...
Click to collapse
Both versions have a GSM/WCDMA/HSPA chipset, but GSM capability has been disabled in the Verizon phone. Interestingly, the RAZR uses the Qualcomm MDM6600...which is capable of all the aforementioned networks.
As for activating the GSM radio in the Verizon version... my guess is that it will require a custom kernel of some sort...
blkrabb1t said:
Both versions have a GSM/WCDMA/HSPA chipset, but GSM capability has been disabled in the Verizon phone. Interestingly, the RAZR uses the Qualcomm MDM6600...which is capable of all the aforementioned networks.
As for activating the GSM radio in the Verizon version... my guess is that it will require a custom kernel of some sort...
Click to expand...
Click to collapse
The RAZR uses the TI OMAP4430, which doesn't have any built-in radios. There's no reason why the Verizon version should have GSM/WCDMA radios.
Chirality said:
The RAZR uses the TI OMAP4430, which doesn't have any built-in radios. There's no reason why the Verizon version should have GSM/WCDMA radios.
Click to expand...
Click to collapse
The MDM6600 is actually a modem, and not a SoC if that's what you were thinking. It's used on all of Verizon's current global phones, including the iPhone.
From the FCC on the Bionic:
The WCDMA/GSM network functions have been disabled by the firmware and are SIM locked by all US operators on this product.
Click to expand...
Click to collapse
And Anandtech:
...This power amp is actually quad band 850/900/1800/1900 MHz. In its shipping form, the Bionic is limited to just 850/1900 for CDMA2000 in the USA, however, I have very little doubt this device could also be used with WCDMA on all four bands with some tweaking. FCC documents also talk about WCDMA functionality being disabled...
Click to expand...
Click to collapse
I was thinking along the same lines.
I have a Photon and the GSM bands are locked from being used on other US carriers. There have beem discussions that the radio files are what need to be changed/hacked. I wonder if the premise would be the same as I'd love to make this a global phone...
blkrabb1t said:
Both versions have a GSM/WCDMA/HSPA chipset, but GSM capability has been disabled in the Verizon phone. Interestingly, the RAZR uses the Qualcomm MDM6600...which is capable of all the aforementioned networks.
As for activating the GSM radio in the Verizon version... my guess is that it will require a custom kernel of some sort...
Click to expand...
Click to collapse
Read here: http://developer.motorola.com/products/droid-razr-xt912/
Chirality said:
The RAZR uses the TI OMAP4430, which doesn't have any built-in radios. There's no reason why the Verizon version should have GSM/WCDMA radios.
Click to expand...
Click to collapse
blkrabb1t said:
The MDM6600 is actually a modem, and not a SoC if that's what you were thinking. It's used on all of Verizon's current global phones, including the iPhone.
From the FCC on the Bionic:
And Anandtech:
Click to expand...
Click to collapse
Bah, Qualcomm's model numbers totally threw me off...
Beach_Head said:
Read here: http://developer.motorola.com/products/droid-razr-xt912/
Click to expand...
Click to collapse
If its listed under the official specs, shouldn't the phone have it?
matthew5025 said:
If its listed under the official specs, shouldn't the phone have it?
Click to expand...
Click to collapse
Yes, unless someone disabled the function. .. which is what Verizon did.
Sent from my DROIDX using Tapatalk
Hmmm... there doesn't seem to be much interest in this.
Modifying AMSS is really dangerous and I don't think it will be possible even after a bootloader unlock as radio is protected with another "lock code". It should be unlocked only on Engineering devices.
Would it be possible to load the radios of the GSM version onto it?
kholk said:
Modifying AMSS is really dangerous and I don't think it will be possible even after a bootloader unlock as radio is protected with another "lock code". It should be unlocked only on Engineering devices.
Click to expand...
Click to collapse
Beach_Head said:
Would it be possible to load the radios of the GSM version onto it?
Click to expand...
Click to collapse
I dont think so...this might "permabrick' your phone.
I've been watching this thread really closely, cos i'd really love to use this phone but i have Tmobile.
Beach_Head said:
Would it be possible to load the radios of the GSM version onto it?
Click to expand...
Click to collapse
If there is one thing that Moto locks its boot loader, it's specifically for that.
From what I remember, Moto has some proprietary stuff there, so cracking that will get you into a lot of legal trouble...
Sent from my DROIDX using Tapatalk
blkrabb1t said:
Yes, unless someone disabled the function. .. which is what Verizon did.
Sent from my DROIDX using Tapatalk
Click to expand...
Click to collapse
Wait... What? Why would someone disable such a huge feature? Also, if motorola says a phone has GSM radio and it doesn't can't you complain?
Loading GSM radio on it won't brick it as the chip is the same, MDM6600.
The problem is loading it: the different radio bootloader (that isn't the AP bootloader that is being unlocked with ICS update) signature won't allow you to.
So this is a dead end?
kholk said:
Loading GSM radio on it won't brick it as the chip is the same, MDM6600.
The problem is loading it: the different radio bootloader (that isn't the AP bootloader that is being unlocked with ICS update) signature won't allow you to.
Click to expand...
Click to collapse
I am very interested in this!
I travel a lot and need gsm access in Europe and Asia.
I am tired of carrying two phones and trying to keep them synced.
With all of the smart people here we can't figure this out?
I remember enabling the fourth band on my Moto GSM E6 rokr, which was also turned off by the carrier.
feel free to correct me if I'm wrong
But from what I understand, the phone is capable of utilizing gsm as well as cdma out of the box. Otherwise when you went to other countries you would not be able to use the phone. But verizon has agreements with various providers around the world to provide gsm service. And I seem to recall seeing on my device info page, while on my my verizon online access for my bionic, a number listed as the sim puk unlock code. Which may or may not unlock the phone for other sim cards, but I distinctly recall seeing it there. So check your device info page on my verizon. I just thought I'd share because some of the answers get overlooked because people simply don't try the proper channels. Myself included. For instance, who knew that the reset procedure for the razr is explained on the 2nd page of the user manual? I had already google'd it before reading it in both the printed manual and the built in help file.
Related
In case anyone's interested...
http://content.modaco.net/EPE54BvsERE36B.html
P
Can anyone tell us little people what this means?
i think the blue highlighted lines are the changed files
Yeah, do tell in layman terms to us "smallies" ;-)
//Å
White = matching, green = changed.
P
Interesting to note a file for AT&T compatability in this build!
P
paulobrien said:
Interesting to note a file for AT&T compatability in this build!
P
Click to expand...
Click to collapse
Wonder what that addition does.
jchap2k said:
Wonder what that addition does.
Click to expand...
Click to collapse
maybe it support at&t 3g
i can dream
Nobody seem to have noticed that EPE54B is signed with test-keys and ERE36B with release keys...
Are the apk's also not throwing a lot of useless debug output ?
Not running it!
In my experience most of android throws out useless debug crap.
P
hjlow said:
maybe it support at&t 3g
i can dream
Click to expand...
Click to collapse
Won't happen on the devices released to the public because our radio isn't capable of using the ATT3G bands, but they may be releasing a flavor that's compatible with ATT.
Just a guess.
tokyomonster said:
Won't happen on the devices released to the public because our radio isn't capable of using the ATT3G bands, but they may be releasing a flavor that's compatible with ATT.
Just a guess.
Click to expand...
Click to collapse
Couldn't this just be resolved with a radio update from Google. I mean GSM is GSM, it's about receiving the right bandwidth which is controlled by the radio. Unless I am missing something, I believe google could push out an update for the radio that supported both TMO and ATT's 3G bandwidth.
You need the right antennas. Hardware.
P
paulobrien said:
You need the right antennas. Hardware.
P
Click to expand...
Click to collapse
That's too bad...
Since we're on the subject...will ATT's radio support TMobile bands?
SiNJiN76 said:
Since we're on the subject...will ATT's radio support TMobile bands?
Click to expand...
Click to collapse
No, ATT and t-mobile run their 3G on complete different bands, so there's no compatibility between the two with existing hardware(that I know of).
Of course voice and EDGE will still function fine on the same phone between both carriers, but you'll need a phone that supports the specific bands for the carrier you're intending to use 3G on if you want it to work.
tokyomonster said:
No, ATT and t-mobile run their 3G on complete different bands, so there's no compatibility between the two with existing hardware(that I know of).
Of course voice and EDGE will still function fine on the same phone between both carriers, but you'll need a phone that supports the specific bands for the carrier you're intending to use 3G on if you want it to work.
Click to expand...
Click to collapse
I'm sure he was just pulling your leg... no one's stupid enough to ask that question when it's been answered repeatedly, most recently two posts above his own.
I saw it somewhere that the verizon LTE droid razr actually supports dual network mode, in other words, GSM and CDMA.
I wonder if someone who has the verizon version can verify this. I am sure a lot of people are interested.
Also, I might switch to the verizon version from my galaxy nexus GSM version if it is real...
Thank you and happy new year !
No it is not supporting GSM
Sent from my DROID RAZR using XDA App
I think it has the radios but Verizon had them disabled (gsm that is)
Sent from my DROID RAZR using XDA App
Yup. It has them disabled.
The XT910 however, has the GSM radios. I believe Rogers has it.
Shame on Verizon. They always do something like cutting functions off.
There are engineering prototype floating around and there are pictures showing the dual mode.
Hope one day this thing got an unlocked radio.
Well technically it is enabled for LTE. LTE uses a version of GSM. Thats why you have a sim card from VZW
Topgun966 said:
Well technically it is enabled for LTE. LTE uses a version of GSM. Thats why you have a sim card from VZW
Click to expand...
Click to collapse
Yea, but he means able to work on gsm bands (850/900/1800/2100). These bands are hardwared into the droid razr, but like everyone else stated its locked by Verizon. And there is no way around to unlocking it to work. It's a shame, but perhaps in a few months we'll see a "world" phone version of the droid razr. But knowing Verizon, they'd charge extra for a phone with the same hardware, just a new name. Haha.
According to this the Razr has GSM 850/1900 support in its sim card slot. That means if you can unlock (via Verizon key or possibly a custom rom) you should be able to use a third party sim card.
http://www.engadget.com/2011/10/18/motorola-droid-razr-hits-fcc-with-verizon-lte-global-gsm-radio/
You know, you could just grab the Rogers or Int'l versions, they work on at&t just fine
Any idea why my phone keeps jumping between 60% and 70% on the charger? Was using my N1 charger at first, and it stayed at 60%, finally jumped straight to 70% with the included Motorola charger.
There is definately GSM capability or at least someone wrote settings code for it. These are 2 screen shots from my CDMA Vzn phone.
The settings are greyed out however.
How did you access those menus Ford_Tech?
Eraser310 said:
How did you access those menus Ford_Tech?
Click to expand...
Click to collapse
You can use anycut to access these menu
https://play.google.com/store/apps/...251bGwsMSwxLDEsImNvbS5hcHBkcm9pZC5hbnljdXQiXQ..
it's one of the reasons that moto has to keep the bootloader locked up. VZW would FREAK so loud their master in Hell could hear them if people started to flash their phones to work on att, or worse...
Both the Droid 2 Global and Droid 3 were locked down not to be used on the GSM networks here in the states and a couple of guys on xda got it working for us. On another note the HTC Rezound is also working on gsm thanks to some
Verizon has already said that the global GSM roaming capabilities will be enables at some point in the future for the Droid 4. They said having them currently blocked at this point was due to "network limitations." Since the internals of the Droid 4 are pretty much identical to the RAZR/RAZR MAXX, it's possible Verizon will enable the feature on those phones as well...or maybe that a developer can enable them once the Droid 4 gets it.
I use an app called phone info to get into the info menus quickly, select Phone Information. I have a GSM Razr and I can switch my radio to CDMA from GSM or Auto (CDMA/GSM) using a dropdown menu. Can you definitely not do this with the US Droid Razr?
Hopefully some developer is working on a workaround for the verizon ICS build to work on GSM ,cant they just add the radio from the CM9 aokp builds ?
sonicfishcake said:
I use an app called phone info to get into the info menus quickly, select Phone Information. I have a GSM Razr and I can switch my radio to CDMA from GSM or Auto (CDMA/GSM) using a dropdown menu. Can you definitely not do this with the US Droid Razr?
Click to expand...
Click to collapse
I checked out the app. It does give you the choice to switch to GSM but Idk if it'll work and Idk how to tell if it works.
Sent from my DROID RAZR using xda premium
yeah that's the snag unless you are sim unlocked and can try a friends AT&T SIM Card?
sonicfishcake said:
yeah that's the snag unless you are sim unlocked and can try a friends AT&T SIM Card?
Click to expand...
Click to collapse
I see so it might be possible if you are sim unlocked and have a different sim card.
Sent from my DROID RAZR using xda premium
Will this phone work in Singapore? Looking at the frequencies, it seems like it should.
I'm running CM10.1
While in singapore, I tried turning the phone on and it would not get a signal.
I tried the different "Preferred Network Mode" options but no help.
Might this be because I needed to get a SIM card in singapore and install it?
Would I need to call up verizon and get it "unlocked" before I can do this?
enricong said:
Would I need to call up verizon and get it "unlocked" before I can do this?
Click to expand...
Click to collapse
I believe the HTC Droid Incredible 4G LTE is not carrier locked, so you shouldn't have to get it unlocked before you can use a different SIM.
enricong said:
Will this phone work in Singapore? Looking at the frequencies, it seems like it should.
I'm running CM10.1
While in singapore, I tried turning the phone on and it would not get a signal.
I tried the different "Preferred Network Mode" options but no help.
Might this be because I needed to get a SIM card in singapore and install it?
Would I need to call up verizon and get it "unlocked" before I can do this?
Click to expand...
Click to collapse
that a cm10 bug, read the post and youll find how to fix, just read and youll see
http://forum.xda-developers.com/showthread.php?t=2121331
look for this title
For use outside of the U.S.A. and on carriers other than Verizon Wireless
jose51197 said:
that a cm10 bug, read the post and youll find how to fix, just read and youll see
http://forum.xda-developers.com/showthread.php?t=2121331
look for this title
For use outside of the U.S.A. and on carriers other than Verizon Wireless
Click to expand...
Click to collapse
You mean the change to build.prop?
I wasn't sure if that was needed with another SIM.
Also I wasn't sure if the freq is supported.
enricong said:
You mean the change to build.prop?
I wasn't sure if that was needed with another SIM.
Also I wasn't sure if the freq is supported.
Click to expand...
Click to collapse
if freq wasn't supported you at least will have gsm(2g) signal and yes for gsm users its needed
Sent from my ADR6410LVW using xda app-developers app
Background: Work bought me an S4, but they use Verizon...I use T-Mobile. I must solve this issue. (Plus it's been so long that since I've even opened my QXDM/QPST that I almost...almost forgot how to use it, man, I miss it)...
This is more of a running log to potentially help others in their endeavors. This is an advanced topic...by today's standards. There is a LOT you need to know before just jumping in on this...unless you're like me and don't mind bricking a device for the sake of learning...then, carry on.
BTW, As you can clearly tell..I don't do super formatted frilly assed colorful posts...
ONWARD!!
What is known so far:
1. The modem MDM9615m is capable of anything...(Maybe even making you tea).
2. Using either 2009031920090615 or 2010031619780721 as the 16 digit PW in QXDM allows you to use "Software Backup" to backup and restore QCN files...(Both work, only one puts the phone offline)
4. The AWS band method that is floating around here (337_aws.qcn) doesn't work...it actually breaks the phone. (more on that later)
5. Putting your backup on again leaves whichever fields the 337 file had intact...so say you put the 337_aws.qcn file onto the phone, it stops working...however, you restore your backup...and the phone starts working again but all the fields of the NV that were written by the 337 file remain. Though phone functionality is restored.
6. MDK or ME7...doesn't matter at this point...no effect on functionality.
7. Flashing an MD1 modem/NV Backup from a T-Mobile Note II (which also has the 9615 doesn't seem to work...yet)...It actually kills the phone...I'll update when/IF I revive it...
8. You can Odin your modem back...whew!
What needs to be explored:
1. Whether or not flashing (shoehorning) another carriers radio will help (or if it's even an option)...this would probably have to be a regional carrier or maybe an international (non US) carrier's radio. Usually the bigger carriers can tell the manufacturer what to leave out/put into their phone...
2. Which NV Items need to be modified in order to get AWS (maybe even LTE) working.
3. Can a backup of another phone....let's sayyyy a T-Mo S4...be made and dumped onto the i545.
4. What complications are there? Is this permanent, can the phone be put back to "normal"? etc. etc.
5. If, as a last resort, we can edit the current parameters that are in the NV of a stock i545 to simply "reroute" (work with me here)...what bands it uses for which function...(this is the most tedious...but most undoable method...that I can think of....so far).
Troubles I've already ran into:
As mentioned before...after you write the 337_aws.qcn file to the phone it's pretty much set in stone...for now. When this happens, the modem starts boot looping...I'm sure this is due to bad parameters since the 337_aws.qcn file was probably from a 9215, i545 uses a 9615...you will not be able to access it again in QPST/XDM...
You'll have to get into Settings, More Networks, Mobile Networks, Network Mode, and select GSM/UMTS...this will keep the modem alive for you to be able to play with it again.
So far that's it. I've only been able to start messing with this phone in the past day or so...so, I'm sure this thread will be my dumping ground for my progress/findings/ideas...etc. Again, I encourage anyone that wants to help....to do so. I'm always open for collaboration.
This is where I start filtering down and organizing what I'm doing.
I believe that the best course of action right now is to utilize the 9615m radio from a Note 2...and perhaps a ROM from a T-Mo S4...
The main reason is because when you flash the 9615 modem but still use a VZ Rom...it tries to force it into a "WCDMA Preferred" selection. Which as we know...isn't an option in the menu. However, it's still trying...but I think the ROM doesn't know what to do at that point (could be way off here). I'm thinking that there has got to be a specific combination that needs to be used....for example...a Note 2 modem with a Tmobile ROM and NV backup? or that...but with a VZ NV backup...
I'm not a programmer/rom guy, (I'm more RF engineering etc...), so I don't know if there are things in the ROM itself that dictate which options are available and how the modem is used...
More exploration to be done...
Build.prop indicates to the system what network options should be available
Tmo rom looks like the way to go
On these newer phones the modem dictates pretty much everything else network-wise
CNexus said:
Build.prop indicates to the system what network options should be available
Tmo rom looks like the way to go
On these newer phones the modem dictates pretty much everything else network-wise
Click to expand...
Click to collapse
That's good information....I tried running Paranoid Android but it wouldn't boot and any other rom told me that the device ID was wrong. I'm going to look into bypassing that check and try some more...
It hasn't been fully proven/disproven but it seems that there may be a "hard" block for US CDMA devices to use US GSM.
It can certainly see it but won't connect based on the threads I read.
But I don't think anyone has documented it in thorough detail what has and has not been tested.
Now if that setting is in NV data and can be modified... you may have a shot.
But if it's something hard coded and/or physical (QFuse) it may not be possible.
Q: Would it not be easier to find someone to swap with you? Or sell the device and get a Tmo?
garwynn said:
Q: Would it not be easier to find someone to swap with you? Or sell the device and get a Tmo?
Click to expand...
Click to collapse
Haha, leaps and bounds! easier, but what's the fun in that? How will we learn what can and can't be done if we take the easy way? Plus...maybe someone runs into a stellar deal and can't afford a full priced S4...they might nab a VZ one for cheap...this could potentially help a lot of people...
This is more to learn than anything...
Any progress?
Any progress with this? I'm in the same boat.
Thats a shame. Would be nice to have found out if a CDMA S4 could be fully used with GSM network.
blackhand901 said:
Any progress with this? I'm in the same boat.
Click to expand...
Click to collapse
---------------------------------------------
ThunderBob
Galaxy S4 SGH-M919 - GoldenEye 8.0 - XXUDMI1
HTC One - Stock
blackhand901 said:
Any progress with this? I'm in the same boat.
Click to expand...
Click to collapse
I've been stalking the internet for weeks to try and see if i can pick up all of T-Mobile's hspa frquencies in my area cause I'm tired of edge and I know the hardware is there i just don't want a brick. would rather 2g over a brick.
I have been on tmobiles 4g network with my i545 for 2 weeks now... I have had zero issues.
You an only get
justda said:
I have been on tmobiles 4g network with my i545 for 2 weeks now... I have had zero issues.
Click to expand...
Click to collapse
HSPA on this divi e. Not LTE.
It makes me confused that band 4 LTE is locked on the phone
I always thought verizon had the open access regulation from FCC and that's the reason all verizon LTE phones are gsm unlocked
in fact some posts indicates it's CDMA unlocked also. Some CDMA carriers use R-uim card such as China telecom,and people were able to insert the ruim and have cdma working.
From this post, it seems verizon only had the regulation on LTE 700 band 17, not AWS band 4?
or is it just because verizon hasn't really deployed AWS LTE yet, so the relative software hasn't been released yet?
michael3770 said:
It makes me confused that band 4 LTE is locked on the phone
I always thought verizon had the open access regulation from FCC and that's the reason all verizon LTE phones are gsm unlocked
in fact some posts indicates it's CDMA unlocked also. Some CDMA carriers use R-uim card such as China telecom,and people were able to insert the ruim and have cdma working.
From this post, it seems verizon only had the regulation on LTE 700 band 17, not AWS band 4?
or is it just because verizon hasn't really deployed AWS LTE yet, so the relative software hasn't been released yet?
Click to expand...
Click to collapse
just for clarification, Verizon uses LTE 700 B13 not B17. According to Samsung and some other website Verizon S4 support LTE B4 and B13. and according to the guy in this post http://forum.xda-developers.com/showpost.php?p=44206677&postcount=20 he is using or have used VZW S4 on T-mobile LTE.
This is one of the oddest things I've ever run into.
I can put a T-Mobile Sim in the phone and it works almost like it was a Verizon Sim with the exception of needing to switch it to global mode when prompted.
If I stick a GSM Metro PCS Sim that I am currently using on the M919 it wont connect to anything except Wifi.
I hate locked bootloaders.
What about with custom roms?
dennis5pia said:
just for clarification, Verizon uses LTE 700 B13 not B17. According to Samsung and some other website Verizon S4 support LTE B4 and B13. and according to the guy in this post http://forum.xda-developers.com/showpost.php?p=44206677&postcount=20 he is using or have used VZW S4 on T-mobile LTE.
Click to expand...
Click to collapse
Sorry that was a typo, yep att use b17 and vzw use b13
Verizon is going to deploy a second LTE network using AWS spectrum in congested areas
Why you guys don't install "android data tool" to be able to enter the *#*#4636#*#* menu so you could set LTE only to see if Verizon S4 pick up T-Mobile LTE?
If you are rooted and have access to write system data you could edit the "sale_code.dat" file under system/csc and change from VZW to SPR, AWS or any other code, so you can have more network mode options under mobile network settings.
Just for some clarification... This is done on Stock Touchwiz rom or is the device rooted and / or rommed and loki-d
Thanks,
Eric
So I can put a verizon sim card in my tmobile Gs4?I thought Verizon didnt use sim cards like tmobile and at&t.my tmobile Gs4 is unlocked so basically I just need a Verizon sim card and a Verizon plan. Thanks!!!
Sent from my SGH-M919 using xda app-developers app
I don't think that works that way. Verizon is a CDMA carrier and T-Mobile a GSM carrier. Verizon sim card is for LTE only (LTE is GSM based technology). Voice works over CDMA radio which T-Mobile S4 lack of it. T-Mobile sim works on Verizon S4 because Verizon S4 is CDMA/GSM/LTE capable.
xda23 said:
So I can put a verizon sim card in my tmobile Gs4?I thought Verizon didnt use sim cards like tmobile and at&t.my tmobile Gs4 is unlocked so basically I just need a Verizon sim card and a Verizon plan. Thanks!!!
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
Besides the obvious model number, what are the differences in hardware and firmware between the two.
They seem identical my cousin has the galaxy note 2 at&t and I have the i605 Verizon gn2 maybe the network receivers are different
Sent from my SCH-I605 using XDA Free mobile app
drarkanex said:
Besides the obvious model number, what are the differences in hardware and firmware between the two.
Click to expand...
Click to collapse
A lot...Verizon (and Sprint) uses CDMA frequencies and radios and AT&T (and T-Mobile) uses GSM frequencies and radios
KennyG123 said:
A lot...Verizon (and Sprint) uses CDMA frequencies and radios and AT&T (and T-Mobile) uses GSM frequencies and radios
Click to expand...
Click to collapse
I understand the obvious here but I currently have the verizon 605 and I'm on at&t so it would seem that it can be on any carrier considering the n2 uses a lot of freqs. I'm talking about actual hardware differences. I might need to do some research on my own with this one. But if anyone else can help with this would be appreciated.
drarkanex said:
I understand the obvious here but I currently have the verizon 605 and I'm on at&t so it would seem that it can be on any carrier considering the n2 uses a lot of freqs. I'm talking about actual hardware differences. I might need to do some research on my own with this one. But if anyone else can help with this would be appreciated.
Click to expand...
Click to collapse
Verizon model doesn't have what it needs to be on AT&T LTE. I believe the way the memory is partitioned is different as well.
Just out of curiosity, why are you wanting to know?
Sent from my SCH-I605 using XDA Premium 4 mobile app
BluGuy said:
Verizon model doesn't have what it needs to be on AT&T LTE. I believe the way the memory is partitioned is different as well.
Just out of curiosity, why are you wanting to know?
Sent from my SCH-I605 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I am a hardware guy. I'm also considering finding out how they tick and make my own custom rom to maybe figure this out and streamline a rom that will be custom only to the note 2 regardless of carrier. i mean its out there that the note 2 will work on any carrier regardless of model because I'm on my 605 running an att rom on att carrier.
drarkanex said:
I understand the obvious here but I currently have the verizon 605 and I'm on at&t so it would seem that it can be on any carrier considering the n2 uses a lot of freqs. I'm talking about actual hardware differences. I might need to do some research on my own with this one. But if anyone else can help with this would be appreciated.
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The main differences are the included radios
Verizon: http://www.phonescoop.com/phones/phone.php?p=3926
AT&T: http://www.phonescoop.com/phones/phone.php?p=3918
Of course firmware will be very different because of interfacing with the radios
KennyG123 said:
The main differences are the included radios
Verizon: http://www.phonescoop.com/phones/phone.php?p=3926
AT&T: http://www.phonescoop.com/phones/phone.php?p=3918
Of course firmware will be very different because of interfacing with the radios
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^ Thanks for this.
Thinking out loud here, not sure why Samsung wouldn't be able to have one radio that can handle all those different LTE bands. Perhaps this is intentional based on requests from US carriers?
devious_z said:
^ Thanks for this.
Thinking out loud here, not sure why Samsung wouldn't be able to have one radio that can handle all those different LTE bands. Perhaps this is intentional based on requests from US carriers?
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Yes...that sounds like something they would request to try and keep you tied to their carrier or make you buy one of their phones when moving to them.
devious_z said:
^ Thanks for this.
Thinking out loud here, not sure why Samsung wouldn't be able to have one radio that can handle all those different LTE bands. Perhaps this is intentional based on requests from US carriers?
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KennyG123 said:
Yes...that sounds like something they would request to try and keep you tied to their carrier or make you buy one of their phones when moving to them.
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Hmm I am confused here.. doesn't the Verizon note 2 have both GSM and CDMA capabilities, that why is considered a World phone..
I'm pretty certain the main differences is firmare and not hardware. I'll have to check those links Kenny..
I know of people running t mobile on a Verizon note 2 that have everything working perfectly fine and t mobile is GSM. Pop the Sim in, switch mobile networks to GSM, maybe edit apns for lte..but I don't even thunk that is needed once the GSM Sim is in place. This unlocks the add apn feature under access points
lacoursiere18 said:
Hmm I am confused here.. doesn't the Verizon note 2 have both GSM and CDMA capabilities, that why is considered a World phone..
I'm pretty certain the main differences is firmare and not hardware. I'll have to check those links Kenny..
I know of people running t mobile on a Verizon note 2 that have everything working perfectly fine and t mobile is GSM. Pop the Sim in, switch mobile networks to GSM, maybe edit apns for lte..but I don't even thunk that is needed once the GSM Sim is in place. This unlocks the add apn feature under access points
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Yes, look at the specs...it has GSM radio too with some frequencies. And no, you cannot flash AT&T firmware on a Verizon phone and have a perfectly working AT&T phone.
KennyG123 said:
Yes, look at the specs...it has GSM radio too with some frequencies. And no, you cannot flash AT&T firmware on a Verizon phone and have a perfectly working AT&T phone.
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No I know that.. I am not saying flashing att firmware would work out of the box, so they say.. I am aware of what it takes to port different firmwares
I'm saying using a att or t mobile Sim is possible.. maybe I wondered off the op's topic here..sorry about that
drarkanex said:
I am a hardware guy. I'm also considering finding out how they tick and make my
own custom rom to maybe figure this out and streamline a rom that will be custom only to the note 2 regardless of carrier. i mean its out there that the note 2 will work on any carrier regardless of model because I'm on my 605 running an att rom on att carrier.
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This is possible.. but not without a pretty intense aroma installer..you'll need to separate different csc features, apps, frameworks, permissions, libs, build.props and vender folders. .but yea. Would be a pretty big task and knowledge of all the carriers
lacoursiere18 said:
I know of people running t mobile on a Verizon note 2 that have everything working perfectly fine and t mobile is GSM. Pop the Sim in, switch mobile networks to GSM, maybe edit apns for lte..but I don't even thunk that is needed once the GSM Sim is in place. This unlocks the add apn feature under access points
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Thank you for this tidbit of info. I'm currently trying to figure a way to get my old VZW Note 2 working on Straight Talk for my Dad, who's currently using a 3" Samsung something-or-other P.O.S. I'm going to get the AT&T version of the Straight Talk SIM and try it out since some have reported success with it. If not that one, then maybe the T-Mobile one.
I'll post back with my results (5-10 business days for delivery--yikes!)
P.S. Anyone else out there have a recommendation for a ROM to use for this? I'm going to go with something 4.1.x because I've read that later versions won't work. Jedi X maybe?