I just purchased a rooted Nexus 1 from eBay. It came with Cyanogen 6.0 RC3. 5.08 radio. I noticed it was always displaying an E for edge signal. I went into the phone menu (*#*#4636#*#*) to set it to WCDMA Only. It then would not get a signal at all. I set signal back (WCDMA perfered) and Flashed Cyanogen ROM again with 4.06 Radio. I still get only EDGE. I have another Nexus 1 and it goes between H and 3G (HSPA is active in my area). Does anyone have any idea what could be causing this or how to fix?
One is AT&T band and another is T-Mobile band, perhaps?
No they r for T-Mobile. The problem is it only shows edge and never 3g like it should.
Sent from my Nexus One using XDA App
Try flashing back to stock to see if it keeps doing that.
Did you check settings>wireless & networks>mobile networks "use only 2g networks" unchecked. I assume you did since you know the (*#*#4636#*#*) method, but maybe someone else will read this who needs it. If that doesn't work I would test an ATT sim card to clear my curiosity.
adambenjamin said:
Did you check settings>wireless & networks>mobile networks "use only 2g networks" unchecked. I assume you did since you know the (*#*#4636#*#*) method, but maybe someone else will read this who needs it. If that doesn't work I would test an ATT sim card to clear my curiosity.
Click to expand...
Click to collapse
Yes I did check this. What will testing phone with ATT sim card do? Phone is advertised as unlocked and rooted. What am I missing?
For 3g, T-Mobile USA exclusively uses the AWS 1700/2100 MHz frequency-band, and ATT uses the 850/2100 MHz band, so a special batch of N1's were made for ATT with different hardware. If a friend's ATT sim card picks up a 3G signal, it means you can't pick up T-mobile usa.
You said the phone was advertised as unlocked and rooted. The thing to check would be to ask if the phone is compatible with ATT's 3G bands or T-mobile's 3g bands. "Unlocked for all GMS carriers" for example, only tells you that it works on all EDGE networks. I haven't seen a Nexus One that can run both 3G networks, but they may exist. (Was there anything in the ad specifically about the 3g bands?)
The ATT Nexus One is more rare, you may be able to sell or trade with someone in the marketplace here on xda or on the internet somewhere.
Sanity check: shut down the phone, take off your battery cover, remove the battery and tell us the FCC ID. It's in the second of three lines of text below where the barcodes are.
My AWS (T-Mobile) Nexus One says:
FCC ID: NM8PB99100
If you have the AT&T version it should say:
FCC ID: NM8PB99110
Note the single-digit difference. If you have the AT&T version you'll want to trade it with someone else who has the T-Mobile version in order to get 3G. If this is the case, you're in luck, because the AT&T version is discontinued and lots of people would be very happy to obtain one from you.
cmstlist said:
Sanity check: shut down the phone, take off your battery cover, remove the battery and tell us the FCC ID. It's in the second of three lines of text below where the barcodes are.
My AWS (T-Mobile) Nexus One says:
FCC ID: NM8PB99100
If you have the AT&T version it should say:
FCC ID: NM8PB99110
Note the single-digit difference. If you have the AT&T version you'll want to trade it with someone else who has the T-Mobile version in order to get 3G. If this is the case, you're in luck, because the AT&T version is discontinued and lots of people would be very happy to obtain one from you.
Click to expand...
Click to collapse
Thanks for the information. You hit the nail on the head! The phone is marked as one of the early AT&T Unlocked models. I also had one of my friends put his AT&T card in the phone and it picked up 3g just fine. I spoke to seller of this phone on ebay and he said he would take item back. IS THERE ANY WAY TO FIX THIS PROBLEM SO THAT PHONE WILL WORK ON T-MOBILE?
att for tmobile nexus one
hello there, I would be interested in trading you that att nexus for my tmobile nexus one. Please let me know if you are interested, text @ 801-228-0176
Poseidon20 said:
IS THERE ANY WAY TO FIX THIS PROBLEM SO THAT PHONE WILL WORK ON T-MOBILE?
Click to expand...
Click to collapse
hmm...I don't think so.
Take it back to the seller or trade with someone
As many already stated in the thread (starting with me), you have AT&T Nexus, and there is NO WAY to make it work with T-Mobile. But, as also stated, you're lucky - lot of people will probably be happy to trade with you or buy it from you.
I just got a flawless AT&T Nexus One for next to nada $150 from a guy that heads up the IT department at a hospital, he had bought over a dozen f them and I mistakenly thought that since they were Google Nexus devices and since I had a "android data plan" and because I could make and receive calls and get on the web that all was good! What I didn't realize is that I'd be stuck on EDGE for good, they only real downside is that I cannot be on a call and surf the web at the same time, I'm just glad I got a pristine phone that's outta warranty, and running 2.3.6 (stock) and for only $150! Also I've always been a physical keyboard guy, so darn I get EDGE... I run the fastest web on my WEP encrypted network at home and hop on the VPN network at school, and now that the bastards at TMOB don't offer (unlimited) I really don't use alot of data anyways cause I don't goto social networking sites neways!
Any one wanting to trade a TMOB NEXUS ONE for a ATT NEXUS ONE??
So I've been doing some research on unlocking the bionic to work on other networks. I've found several websites that clam the bionic can be unlocked, you supply them with your bionics numbers, and they email the unlock codes. This isn't just for the bionic, they support multiple phones. Just curious as to if anyone has tried this with the bionic, or any other phone before I put money into something that doesn't work.
Sent from my DROID BIONIC using XDA App
Don't put your money into it. I used a service and it took them 5 days to get me my code and instructions. I installed the unsupported SIM card like the instructions said, booted the phone and received a message that said the SIM card was from an unknown source, but didn't provide a dialogue box to type in my code like the instructions said it would.
I have been researching how to input that code since, but no luck. I read there was a way to input it using Radiocomm, but I can't get version 11.11.11 to install correctly on my computer and don't know what to select for the Bionic.
Here is Motorola's official spec sheet page for the Droid Bionic: http://developer.motorola.com/products/droid-bionic-xt875
Look very carefully at one particular section
Connectivity
WAN: VOICE BANDS CDMA 800/1900, LTE 13
WAN: DATA BEARERS EVDO Rev. A , LTE
What does this mean for you? It means it's essentially impossible to use the Bionic on anything other than Verizon. The radio on the Bionic has ZERO support any GSM protocol or bands.
If you're lucky, and someone comes up with a method, you might be lucky to use it on a cheapo CDMA regional carrier like Cricket Wireless. Have fun crawling on 3G only.
Well, it sure would be nice to be able to use it on an LTE network overseas with a prepaid SIM card.
Wasn't one of the original selling points of LTE is eventually all phones and carriers supporting the same hardware spec? That's not to say that any given phone will work with any carrier, but at least that's the carrier's choise, not dictacted by completely incompatible technologies, GSM vs CDMA.
It's just sad that as the tech to make everything interoperate is poised to take over the carriers and the governments that regulated them (at least in the US) have no interest letting them them do so.
Funny thing is a large block of LTE spectrum was sold with the caveat that the carriers that won the auction cannot restrict the hardware and software that uses that spectrum. Apparently Verizon is not complying with that law.
http://pocketnow.com/smartphone-news/editorial-are-verizon-lte-data-caps-and-handset-locking-illegal
Even if it were unlocked, you wouldn't be able to use it on an overseas LTE network.
Hello everyone,
I want to to know exactly how I can implement this to my HTC one however what I've been told is that what ever Sprint devices they have sold will not able to work on this new upgrade.
I've been chatting back and fourth with an employee and he says it's a gsm based 4g LTE that's works on hspa or something that uses 1900mhz bandwidth. With that said will I be able to go ahead and convert to what my carrier uses?
Another note, I've successfully SIM unlocked but haven't had a SIM to try it out if it is unlocked, in doing the unlock will I be able to utilize this update to my carriers data speeds? All the employee said as of right now Sprint branded devices are not able to be used with the upgraded network and it uses a gsm based 4g that uses 1900mhz bands. Quite a few people are pissed about this but their normal users and do not know about root and everything associated with it, to include SIM unlocking.
Another thing the employee mentioned was they are now selling HTC one m7 and m8 that are able to utilize the network, he says they are "generic" and Verizon, what I'm thinking that they are just global versions of the device, so who ever got Sprint branded phones are screwed cause they can't upgrade to the new network.
I am hoping I can use this new found boost in data speeds locally!!
v1ral said:
Hello everyone,
I want to to know exactly how I can implement this to my HTC one however what I've been told is that what ever Sprint devices they have sold will not able to work on this new upgrade.
I've been chatting back and fourth with an employee and he says it's a gsm based 4g LTE that's works on hspa or something that uses 1900mhz bandwidth. With that said will I be able to go ahead and convert to what my carrier uses?
Another note, I've successfully SIM unlocked but haven't had a SIM to try it out if it is unlocked, in doing the unlock will I be able to utilize this update to my carriers data speeds? All the employee said as of right now Sprint branded devices are not able to be used with the upgraded network and it uses a gsm based 4g that uses 1900mhz bands. Quite a few people are pissed about this but their normal users and do not know about root and everything associated with it, to include SIM unlocking.
Another thing the employee mentioned was they are now selling HTC one m7 and m8 that are able to utilize the network, he says they are "generic" and Verizon, what I'm thinking that they are just global versions of the device, so who ever got Sprint branded phones are screwed cause they can't upgrade to the new network.
I am hoping I can use this new found boost in data speeds locally!!
Click to expand...
Click to collapse
County? City? State? You provided no information here. Also from the sounds of it NO you can not convert your phone. The bands 4G uses are limited by the hardware in them, if you bought a SPRINT CDMA phone in a foreign county no one screwed anyone except you screwing yourself. You should have bought the global version directly from HTC.
Kraizk said:
County? City? State? You provided no information here. Also from the sounds of it NO you can not convert your phone. The bands 4G uses are limited by the hardware in them, if you bought a SPRINT CDMA phone in a foreign county no one screwed anyone except you screwing yourself. You should have bought the global version directly from HTC.
Click to expand...
Click to collapse
Thanks.
I'm not in the states I'm located in Guam, I'm aware of the hardware limitations, but I'm wondering if the device will be able to pick up signal. I believe my carrier will be using hsdpa bands at 1900mhz and I'm under the impression that the Sprint use those
I am screwed as well as others that have gotten Sprint branded devices here, I feel for them but those people are normal users, that don't know rooting and what associated with it. I don't feel too bad about having this device at all, it's been working great, I was just waiting for my carrier to bring out something 3G data.
I was really banking on having it be able to get the upgraded speeds, and maybe help others who are on the same boat as me.
Thanks again!
[SIZE=+2]This thread has been created
for
Questions & Answers/Troubleshooting[/SIZE][SIZE=+2]Specific to[/SIZE]
Motorola Droid 4
[XT894]
Release date: July 7, 2011
Please feel free to share issues, questions and offer help. Noob questions are welcomed.
It is always best to use the Thanks button , in lieu of simply posting "Thank you".
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Please keep discussion focused, on questions pertaining to this Device
List of supporters
sd_shadow
...
...
To those seeking help: Please don't bombard the supporters with PMs asking for help. Instead, ask your question here in the thread so others can benefit from the solution to your problem as well. If you want to be sure someone particular gets notified of your question, put his / her username directly after an @. Also, if you have ROM related questions, post in the relevant ROM Q&A thread (if there is one) or directly in the ROM development thread. If you are not eligible of posting there, you may post here. Thank you!
Supporters:If you want to be put on or off the list, just make a request here in the thread!
ROM developers: Please read this. Consider if you want to have a ROM specific help thread or not, if not, most likely questions about your ROM will be asked here if the users aren't eligible for posting in development section.
Before posting anything, I strongly advise you to read
Forum Rules
[GUIDE] - XDA New User Guide - Getting started on XDA
XDA Tour
Frequently Asked Questions -Motorola Droid 4
[INDEX] Motorola Droid 4 & Helpful Information
Please Provide as much of the following Information you can, with Your Question
Your bootloader status if applicable
Rom name with complete baseband/date/version
Kernel name
Any Mods you are using
If you are using Custom Rom, your flashing style i.e dirty/clean or you wiped anything else in specific
If you used any guide, link to the guide
Root status
Your exact problem
Any method you tried that failed
Any other detail you think would be necessary
If you do not include the information, it will be the first thing I ask.
No abuse towards noobs tolerated here! That means:
If you see any of the following, do not engage, instead Report the Post(s).NO TROLLING
NO NAME CALLING
NO RIDICULING
NO FLAMING
ASK ANY QUESTION HERE! No question is stupid or irrelevant in this thread.
You will either get an answer or will get pointed in the right direction.
Please look for a similar [HELP THREAD] when visiting another device forum.
If you would like to create a similar [Help Thread] please Click Here.
Hey, Just the thread i needed !!!
Off the research so far,
Droid 4(XT894) is a CDMA Device whose ESN is attached/programmed to a verizon mobile number ... right ?
Within the US this device does not support/accomodate a GSM SIM card ... right ?
While outside US, Verizon number works on international roaming.
meaning Calls and text(does internaltional verizon data work too) work on this phone while travelling internationally just fine ... right ?
While travelling outside US, one could load a Local GSM SIM card and this will enable this phone to work like just any other GSM phone ... right ?
Here's where my question's lie ...
When a GSM SIM card is loaded outside US what happens to the pre-programmed Verizon Number which was working on roaming ?
Does the verizon number work alongside the international GSM SIM card ?
Do calls to the Verizon Roaming number and the local GSM SIM number both work together ?
If so ... can one use Verizon Roaming number for calls, and the local GSM SIM for internet data ? ... simultaneously ?
Will it be the same like a dual-sim phone where both numbers work simultaneously ?
;
;
;
Is it true that this phone supports even a CDMA SIM Card on its SIM slot ?
thanks for reading and any info is greatly appreciated.
aiamuzz said:
Hey, Just the thread i needed !!!
Off the research so far,
Droid 4(XT894) is a CDMA Device whose ESN is attached/programmed to a verizon mobile number ... right ?
Within the US this device does not support/accomodate a GSM SIM card ... right ?
While outside US, Verizon number works on international roaming.
meaning Calls and text(does internaltional verizon data work too) work on this phone while travelling internationally just fine ... right ?
While travelling outside US, one could load a Local GSM SIM card and this will enable this phone to work like just any other GSM phone ... right ?
Here's where my question's lie ...
When a GSM SIM card is loaded outside US what happens to the pre-programmed Verizon Number which was working on roaming ?
Does the verizon number work alongside the international GSM SIM card ?
Do calls to the Verizon Roaming number and the local GSM SIM number both work together ?
If so ... can one use Verizon Roaming number for calls, and the local GSM SIM for internet data ? ... simultaneously ?
Will it be the same like a dual-sim phone where both numbers work simultaneously ?
;
;
;
Is it true that this phone supports even a CDMA SIM Card on its SIM slot ?
thanks for reading and any info is greatly appreciated.
Click to expand...
Click to collapse
Really all verizon uses is the sim card, I have pulled my sim card out and used it with my XT908, XT894, and XT907 without ever contacting verizon about the change, and call, text, LTE all work fine.
The XT894 can only be connected to either cdma or gms not both.
It will not work with other USA carriers
If using outside of the USA, gms will work but suggest installing the gms patch, for improved compatibility.
[PATCH][GUIDE] Patch to fully enable GSM on Verizon CDMA Android phones by Mentor.37
You will need to root, and install Safestrap, before installing the patch.
See the index.
[INDEX] Development Motorola Droid 4
Sent from my XT1028 using Tapatalk
sd_shadow said:
Really all verizon uses is the sim card, I have pulled my sim card out and used it with my XT908, XT894, and XT907 without ever contacting verizon about the change, and call, text, LTE all work fine.
The XT894 can only be connected to either cdma or gms not both.
It will not work with other USA carriers
If using outside of the USA, gms will work but suggest installing the gms patch, for improved compatibility.
[PATCH][GUIDE] Patch to fully enable GSM on Verizon CDMA Android phones by Mentor.37
You will need to root, and install Safestrap, before installing the patch.
See the index.
[INDEX] Development Motorola Droid 4
Sent from my XT1028 using Tapatalk
Click to expand...
Click to collapse
thanks for the quick reply @sd_shadow ...
So that confirms that the SIM slot reads both GSM and CDMA SIM modules.
I still have a feeling that Verizon (i could be wrong, hence the question) programs these phones to work based on their ESN No. else why would people on ebay sell phones with 'CLEAN ESN' ... If a verizon CDMA SIM can work out of this phone why does one need a clean ESN, I thought clean ESN's are used to program CDMA mobile nos. through them !
Anybody here running a Droid 4 (XT894) without a verizon CDMA SIM just fine ?
OR
Droid 4 (XT894) runs only through a Verizon CDMA SIM unlike its non SIM based older cousins ?
aiamuzz said:
thanks for the quick reply @sd_shadow ...
So that confirms that the SIM slot reads both GSM and CDMA SIM modules.
I still have a feeling that Verizon (i could be wrong, hence the question) programs these phones to work based on their ESN No. else why would people on ebay sell phones with 'CLEAN ESN' ... If a verizon CDMA SIM can work out of this phone why does one need a clean ESN, I thought clean ESN's are used to program CDMA mobile nos. through them !
Anybody here running a Droid 4 (XT894) without a verizon CDMA SIM just fine ?
OR
Droid 4 (XT894) runs only through a Verizon CDMA SIM unlike its non SIM based older cousins ?
Click to expand...
Click to collapse
ESN is old technology, and hasn't been used for some time.
What are ESN, MEID, and IMEI (device identifiers)?
Every device has a MEID and/or a IMEI which is used along with the sim.
Verizon will blacklist a device if it is reported stolen or you don't pay your bill.
Lots of people are using the Droid 4 outside of the USA, but only with GSM/3g
LTE only works with Verizon.
The Droid 4 will not work without a sim card, GSM nor LTE/CDMA.
sd_shadow said:
ESN is old technology, and hasn't been used for some time.
What are ESN, MEID, and IMEI (device identifiers)?
Every device has a MEID and/or a IMEI which is used along with the sim.
Verizon will blacklist a device if it is reported stolen or you don't pay your bill.
Lots of people are using the Droid 4 outside of the USA, but only with GSM/3g
LTE only works with Verizon.
The Droid 4 will not work without a sim card, GSM nor LTE/CDMA.
Click to expand...
Click to collapse
@sd_shadow ... appreciate the quick response and the clarification.
I read somewhere that Droid 4 can be registered with other CDMA operators outside USA only with an ESN Number, hence my question ... if that is another way to program a device with a mobile number to run without a CDMA SIM.
With regard to LTE ... If any country has a LTE network running on a frequency(700 MHz) similar to that of Verizon, then may be this phone's LTE might work ?
Probably my original question would seem relevant to a ... GSM-SIM-SLOT-modded ... Motorola Photon Q LTE (XT897) ... as that is a device which works as a programmed phone and there is no SIM Card Slot for CDMA SIM either (or has it got one ?) !!!
Any ways thanks for the information !!!
aiamuzz said:
@sd_shadow ... appreciate the quick response and the clarification.
I read somewhere that Droid 4 can be registered with other CDMA operators outside USA, hence my question if that is another way to program a device with a mobile number to run without a CDMA SIM.
With regard to LTE ... If any country has a LTE network running on a frequency(700 MHz) similar to that of verizon, then would it be likely that this phone's LTE might work ?
Any ways thanks for the information !!!
Click to expand...
Click to collapse
That's alot of ifs, not many facts.
aiamuzz said:
I read somewhere that Droid 4 can be registered with other CDMA operators outside USA only with an ESN Number, hence my question ... if that is another way to program a device with a mobile number to run without a CDMA SIM.
With regard to LTE ... If any country has a LTE network running on a frequency(700 MHz) similar to that of Verizon, then may be this phone's LTE might work ?
Click to expand...
Click to collapse
The Droid 4 can be manually programmed via DFS CDMA Tool, but only through the stock boot process and ROM. You would have to adapt the process a bit for a foreign carrier, of course, and getting the needed info might be slightly harder.
After being manually programmed, and if Mobile Networks > Subscription Type is set to NV-only, it can be used just like an older 3g-only phone: data works, SMS/MMS works, etc. You DO need a SIM card installed in LP, though, or it constantly complains about the SIM missing and stock SMS won't send messages. Certain KK ROMS (SlimKat for instance) don't need a SIM card installed at all. Whether the SIM is old or new, active or not, etc shouldn't matter.
Assuming you get through all that, you'd also need a carrier who is willing to add your IMEI to the network to "activate" the phone. As far as I know, no Verizon-based MVNOs do this after the beginning of this year (PagePlus was probably the last, they finally stopped after Verizon started double-charging for each activation), but I'd imagine carriers outside of the US would have less of a problem with it. Again, getting the needed information to program by hand might be difficult, and the phone can't be automatically programmed OTA.
Best way I can think of to get said information would be to get a natively 3G phone, have it programmed OTA, then access it with DFS or the like to see what the programming is like. Copy the parameters to the Droid, have service transferred to its IMEI, bam, in theory you have 3g service.
While there might be other carriers using the 700mhz LTE band, depending on how standardized LTE is or isn't, they might not be using it in the exact same way as Verizon. It's certainly possible that it would work perfectly fine, but I wouldn't bet money on it.
Septfox said:
The Droid 4 can be manually programmed via DFS CDMA Tool, but only through the stock boot process and ROM. You would have to adapt the process a bit for a foreign carrier, of course, and getting the needed info might be slightly harder.
After being manually programmed, and if Mobile Networks > Subscription Type is set to NV-only, it can be used just like an older 3g-only phone: data works, SMS/MMS works, etc. You DO need a SIM card installed in LP, though, or it constantly complains about the SIM missing and stock SMS won't send messages. Certain KK ROMS (SlimKat for instance) don't need a SIM card installed at all. Whether the SIM is old or new, active or not, etc shouldn't matter.
Assuming you get through all that, you'd also need a carrier who is willing to add your IMEI to the network to "activate" the phone. As far as I know, no Verizon-based MVNOs do this after the beginning of this year (PagePlus was probably the last, they finally stopped after Verizon started double-charging for each activation), but I'd imagine carriers outside of the US would have less of a problem with it. Again, getting the needed information to program by hand might be difficult, and the phone can't be automatically programmed OTA.
Best way I can think of to get said information would be to get a natively 3G phone, have it programmed OTA, then access it with DFS or the like to see what the programming is like. Copy the parameters to the Droid, have service transferred to its IMEI, bam, in theory you have 3g service.
While there might be other carriers using the 700mhz LTE band, depending on how standardized LTE is or isn't, they might not be using it in the exact same way as Verizon. It's certainly possible that it would work perfectly fine, but I wouldn't bet money on it.
Click to expand...
Click to collapse
thanks @Septfox ...
So if One was using SLIMCAT ROM and somehow programmed the phone to say a CDMA operator(the way you've described), say in India(from where i am) ... then without a CDMA SIM card this phone's Call, SMS & Data(3G) should work just fine ?
During such an instance if i load a GSM SIM of another operator what would be the situation ?
I am just looking at using CDMA for Call & SMS(would be good too if Data worked) ... And from my GSM SIM i would like to use only the Data !
So what are the chances of that ?
aiamuzz said:
thanks @Septfox ...
So if One was using SLIMCAT ROM and somehow programmed the phone to say a CDMA operator(the way you've described), say in India(from where i am) ... then without a CDMA SIM card this phone's Call, SMS & Data(3G) should work just fine ?
During such an instance if i load a GSM SIM of another operator what would be the situation ?
I am just looking at using CDMA for Call & SMS(would be good too if Data worked) ... And from my GSM SIM i would like to use only the Data !
So what are the chances of that ?
Click to expand...
Click to collapse
Droid 4 cannot use cdma and gms at the same time.
Sent from my XT1028 using Tapatalk
sd_shadow said:
Droid 4 cannot use cdma and gms at the same time.
Sent from my XT1028 using Tapatalk
Click to expand...
Click to collapse
:crying:
well, i was hoping it would !
Ok, Coming to these phones on sale on Ebay with clean ESN and those with bad ESN's !
In US and with Verizon may be a bad ESN phone is nothing but a paper weight!
Where does it stand with other CDMA operators in US ?
&
Where does it stand with CDMA operators outside US ?
aiamuzz said:
:crying:
well, i was hoping it would !
Ok, Coming to these phones on sale on Ebay with clean ESN and those with bad ESN's !
In US and with Verizon may be a bad ESN phone is nothing but a paper weight!
Where does it stand with other CDMA operators in US ?
&
Where does it stand with CDMA operators outside US ?
Click to expand...
Click to collapse
Clean and bad esn, usually only refers to verizon, carriers usually do not share blacked listed info.
Sent from my XT1028 using Tapatalk
If you want a phone that will work with non verizon carrier in the USA I wouldn't get the Droid 4.
Sent from my XT1028 using Tapatalk
sd_shadow said:
If you want a phone that will work with non verizon carrier in the USA I wouldn't get the Droid 4.
Sent from my XT1028 using Tapatalk
Click to expand...
Click to collapse
not that it applies to me, but i would certainly like to be informed !
may be someone else may find the info useful, well that's the whole idea behind this thread ... isn't it now ?
If you want a phone that works on cdma outside of the USA, do not get the Droid 4, it was not designed for that.
Sent from my XT1028 using Tapatalk
At best you will have limited compatibility.
Sent from my XT1028 using Tapatalk
aiamuzz said:
So if One was using SLIMCAT ROM and somehow programmed the phone to say a CDMA operator(the way you've described), say in India(from where i am) ... then without a CDMA SIM card this phone's Call, SMS & Data(3G) should work just fine ?
Click to expand...
Click to collapse
In theory, yes. As long as the channels match up, CDMA service is pretty standard as far as I know. And to be as clear as possible: you can use any ROM, if you have an LTE SIM card installed. The SIM doesn't need to be active, as it isn't actually used if the phone is manually programmed, it is simply there to make the phone stop complaining about a missing SIM.
To reiterate though, this is all in theory. As @sd_shadow said, to use 3G CDMA outside of the US, you might want to find a phone that does it natively. The Droid 4 was intended for 4G LTE/voice over CDMA in the US, and GSM internationally. Trying to get it working on a non-Verizon CDMA carrier should be done as a curiosity, not out of expectation that it will work.
As for non-Verizon carriers in the US, there are at least a couple; Boost and Sprint come to mind. Verizon is the primary CDMA operator here, most other carriers claiming CDMA service are actually MVNOs (Mobile Virtual Network Operator) who "rent" capacity on Verizon's network and resell it to customers as prepaid packages. Verizon MVNOs will refuse to activate the Droid 4 for 3G-only service, as its IMEI immediately gives it away as a 4G LTE device. Boost and Sprint probably won't care, so long as the phone operates on the same channels, but they also won't offer any assistance in programming a phone if it can't be done OTA.
Wherever you are, you would probably have an easier time finding a GSM carrier, since all of the needed information is on the SIM card. There are a lot more "ifs" and "maybes" when it comes to CDMA when it can't be automatically programmed, unfortunately. That said, if you have a particular carrier in mind, it may be worth looking around the internet to see if anyone else has tried to program this phone or the RAZR (which apparently has a similar radio); it might turn out they've already gathered all the necessary information, and it's a matter of entering it all into your phone. Finding information for Sprint and Boost should be easy; carriers outside the US might be a bit more difficult.
Lastly, it's worth pointing out that the Photon Q is a physically similar CDMA phone with technically superior specs, already on the Sprint network. It lacks a SIM slot, though, without some delicate modifications to the mainboard and case, so it can't be as readily moved to GSM service. It's also not as well-supported here (at least, the last I checked) as the Droid 4, so its ROMs might still have some outstanding bugs.
Also like sd_shadow, you can't use CDMA and GSM service at the same time. Stock and most AOSP-based ROMS are configured for Verizon 4G/CDMA service by default, and have to be patched to change over to GSM; this necessarily disables some CDMA functionality. To undo the patch, you have to reflash the ROM (or replace the files that the patch changes, if you backed them up).
How can I turn on the keyboard backlight of my droid 4....now I am operating on jellybean...help me with this!!
subhrajeet05 said:
How can I turn on the keyboard backlight of my droid 4....now I am operating on jellybean...help me with this!!
Click to expand...
Click to collapse
Which system version?
Sent from my XT1028 using Tapatalk
98.72.18.XT894.Verizon.en.us
This is my system version
Can i use straight talk on this phone? I am assuming I would need to use the Verizon SIM card (CDMA LTE) kit? I only ask because Straight Talk's website claims the phone is incompatible based on the IMEI #. I have the XT1254.
Raistlen0 said:
Can i use straight talk on this phone? I am assuming I would need to use the Verizon SIM card (CDMA LTE) kit? I only ask because Straight Talk's website claims the phone is incompatible based on the IMEI #. I have the XT1254.
Click to expand...
Click to collapse
You could also use it on "AT&T" and "T-Mobile" Straight Talk. You would only get LTE bands 2 & 4 for both those carriers, but would also have access to HSPA bands.
The Droid Turbo is carrier unlocked. Many people use it on T-Mobile and AT&T.
ChazzMatt said:
You could also use it on "AT&T" and "T-Mobile" Straight Talk. You would only get LTE bands 2 & 4 for both those carriers, but would also have access to HSPA bands.
The Droid Turbo is carrier unlocked. Many people use it on T-Mobile and AT&T.
Click to expand...
Click to collapse
Thanks for the reply that is how I understood it. I was just confused as to why Straight Talk was telling me it was incompatible. Perhapse they "know" I still owe Verizon one more payment on it.
Another question: I know you use ATT; do you know of a map that shows what bands ATT uses where for LTE?
Raistlen0 said:
Thanks for the reply that is how I understood it. I was just confused as to why Straight Talk was telling me it was incompatible. Perhapse they "know" I still owe Verizon one more payment on it.
Another question: I know you use ATT; do you know of a map that shows what bands ATT uses where for LTE?
Click to expand...
Click to collapse
I know LTE Discovery app captures location LTE bands, but I don't know if they have a public map the way Open Signal does.
Open Signal shows LTE availability for various carriers, but I don't they differentiate by which band.
Raistlen0 said:
Thanks for the reply that is how I understood it. I was just confused as to why Straight Talk was telling me it was incompatible. Perhapse they "know" I still owe Verizon one more payment on it.
Click to expand...
Click to collapse
Yes, you probably don't have a "clean" IMEI right now.
Once your contract is fulfilled, it will probably show OK.