Develop Bugs

Phone on different network

I have the nexus,obviously, and would like to know if I can use the Verizon version on a different network
Sent from my Galaxy Nexus using XDA

Nope. CDMA phones are locked and there's no good way to unlock them.

ihavenewnike said:
I have the nexus,obviously, and would like to know if I can use the Verizon version on a different network
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Nope. If you buy the Verizon one you're stuck. Theres a small glimmer of hope that you could reflash it to another regional CDMA carrier, but even that's a long-shot.

ihavenewnike said:
I have the nexus,obviously, and would like to know if I can use the Verizon version on a different network
Sent from my Galaxy Nexus using XDA
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short answer, no
long answer, yes
Anything can be done with enough will power. But practically speaking, no you cant.
I know a guy who got his CDMA EVO 3D working on ATT's GSM network. And I flashed my Sprint only EVO 3D to connect to Verizon. So yes these things are possible, but I wouldnt bother if I were you. If you want to use your VZW Nexus on a GSM network, then why didnt you just get a contract and GSM phone on whichever Network you wanted? If you want to flash to Sprint, Why? Verizon is much better, I just came from Sprint so believe me when I say Sprint has some ****ty service right now. Too many upgrades going on.

A few basic questions

I don't own this phone yet, so I am asking the owners directly (instead of search which gave some contradictory result)
1. Is it laggy for normal use that is while not too many apps in background?
2. Can it be rooted (I guess yes, from Dev section). If yes, can I run ICS?
3. Any hack or ROM or something for 1080p video?
4. Will you suggest getting this phone now?
5. Most important, is it really both GSM and CDMA?
Thanks

lamborg said:
I don't own this phone yet, so I am asking the owners directly (instead of search which gave some contradictory result)
1. Is it laggy for normal use that is while not too many apps in background?
2. Can it be rooted (I guess yes, from Dev section). If yes, can I run ICS?
3. Any hack or ROM or something for 1080p video?
4. Will you suggest getting this phone now?
5. Most important, is it really both GSM and CDMA?
Thanks
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Click to collapse
1. I have never experienced lag that was not due to a misbehaving app while running either stock or rooted/custom ROM. This processor is plenty powerful enough for the vast majority of people's uses and this phone has more ram than many phones with the same processor.
2. Yes read the instructions in the stickies in the dev section thoroughly before attempting. Tacoroot is required for the newest firmware. Both ICS and JB ROMs are available and run quite well (well enough for dd for most people anyways). I currently run AOKP but CM9 and sense 3.6/4.0 ROMs are available and are nice too.
3. Not sure. I don't think so, but I could be wrong.
4. If you are buying used for a reasonable price then definitely. If you are upgrading there are better phones available depending on your price range and features that you desire. I would buy it again if that means anything to you.
5. Yes. GSM is meant for global roaming only but if you are sim unlocked (either by calling VZW for an unlock code or by purchasing one elsewhere) it can be used on domestic GSM carriers if you have a sim card for that carrier. Data speeds are edge only on domestic GSM carriers from what I hear. PLEASE DO NOT ASK IF A ROM HAS GSM SUPPORT WITHOUT READING THE ENTIRE OP AS WELL AS SARCHING WITHIN THE THREAD! IT HAS BEEN ASKED MANY TIMES IN EVERY ROM THREAD THAT I HAVE SEEN AND BOTH DEVS AND USERS WILL FLAME IF THE ANSWER IS EASY TO FIND.
Sent from my Amazon Kindle Fire using xda app-developers app

cstone1991 said:
1. I have never experienced lag that was not due to a misbehaving app while running either stock or rooted/custom ROM. This processor is plenty powerful enough for the vast majority of people's uses and this phone has more ram than many phones with the same processor.
2. Yes read the instructions in the stickies in the dev section thoroughly before attempting. Tacoroot is required for the newest firmware. Both ICS and JB ROMs are available and run quite well (well enough for dd for most people anyways). I currently run AOKP but CM9 and sense 3.6/4.0 ROMs are available and are nice too.
3. Not sure. I don't think so, but I could be wrong.
4. If you are buying used for a reasonable price then definitely. If you are upgrading there are better phones available depending on your price range and features that you desire. I would buy it again if that means anything to you.
5. Yes. GSM is meant for global roaming only but if you are sim unlocked (either by calling VZW for an unlock code or by purchasing one elsewhere) it can be used on domestic GSM carriers if you have a sim card for that carrier. Data speeds are edge only on domestic GSM carriers from what I hear. PLEASE DO NOT ASK IF A ROM HAS GSM SUPPORT WITHOUT READING THE ENTIRE OP AS WELL AS SARCHING WITHIN THE THREAD! IT HAS BEEN ASKED MANY TIMES IN EVERY ROM THREAD THAT I HAVE SEEN AND BOTH DEVS AND USERS WILL FLAME IF THE ANSWER IS EASY TO FIND.
Sent from my Amazon Kindle Fire using xda app-developers app
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Thanks for your reply.
What would you prefer between this and Inspire 4G? Seeing I won't be using 4G for years to come, I don't see any considerable difference between the 2.
About the 5th question, I am not very sure about what "global roaming" means here. Suppose I buy this phone on ebay, then will I be able to use it as a GSM device (i.e with SIM card) in another country without any unlock or anything?

lamborg said:
Thanks for your reply.
What would you prefer between this and Inspire 4G? Seeing I won't be using 4G for years to come, I don't see any considerable difference between the 2.
About the 5th question, I am not very sure about what "global roaming" means here. Suppose I buy this phone on ebay, then will I be able to use it as a GSM device (i.e with SIM card) in another country without any unlock or anything?
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Click to collapse
Personally, I would prefer this phone just because its confirmed to get the ICS update (Inspire 4G isn't getting official ICS). As a note, the Inspire doesn't use true 4G, but rather HSPA+. Just to let you know.
The phone can be used globally, but it will be hampered with GSM because it would only support Edge or 2G. You would also have to get it unlocked and insert the SIM card as well in order for it to work (don't know how the global unlock work since I'm using Verizon)
Sent from my Incredible 2 using xda app-developers app

david_hume said:
Personally, I would prefer this phone just because its confirmed to get the ICS update (Inspire 4G isn't getting official ICS). As a note, the Inspire doesn't use true 4G, but rather HSPA+. Just to let you know.
The phone can be used globally, but it will be hampered with GSM because it would only support Edge or 2G. You would also have to get it unlocked and insert the SIM card as well in order for it to work (don't know how the global unlock work since I'm using Verizon)
Sent from my Incredible 2 using xda app-developers app
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To shed a little light on the global unlock for you both, once the unlock code is received from VZW (or eBay, whatever) you install a non-VZW SIM and it will prompt you for the code. Once entered the phone will restart and connect to GSM networks. Once the correct APNs are set, data and MMS work across all.global GSM (2G) networks, and 900/2100MHz HSPA networks, which you'll find in Europe and Australasia.
I have a GSM unlocked unit and use it no worries in Australia. As mentioned before, performance is fine for day-to-day use, and the Incredible S (true GSM variant of Incredible 2) is one of my favourite handsets of all time.

@david_hume
Are you saying that I won't be able to use 3G while on GSM network? Is it true, coz that might be a deal breaker.
Somewhere I read, you can "switch to WCDMA mode which is HSPA/3G". I don't know if this is true or if WCDMA mode will even work with a GSM SIM card.

lamborg said:
@david_hume
Are you saying that I won't be able to use 3G while on GSM network? Is it true, coz that might be a deal breaker.
Somewhere I read, you can "switch to WCDMA mode which is HSPA/3G". I don't know if this is true or if WCDMA mode will even work with a GSM SIM card.
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You will only be able to use 3g if the network uses the 900/2100mhz bands for their 3g. Even the vast majority of Tmo and ATT phones do not receive 3g on the other network currently.
Which carrier do you plan on using?
Sent from my ICS Dinc2

cstone1991 said:
You will only be able to use 3g if the network uses the 900/2100mhz bands for their 3g. Even the vast majority of Tmo and ATT phones do not receive 3g on the other network currently.
Which carrier do you plan on using?
Sent from my ICS Dinc2
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I'll be using it in another country. It uses 2100 frequency band for 3G.
I have another question.
If the phone is not unlocked yet, will a normal flash of a ROM is all that is required to unlock the phone to use it on abroad GSM networks or do I have to get the unlock code? My guess is flashing will not work, but I am confirming this.
Also, if I get a phone with a Bad ESN, will I be able to SIM unlock it and use the phone in other countries on GSM mode, or the phone need to have a Clean ESN in order to SIM unlock it? I am thinking of getting the unlock code from one of the websites that gives the code for some $.

lamborg said:
I don't own this phone yet, so I am asking the owners directly (instead of search which gave some contradictory result)
1. Is it laggy for normal use that is while not too many apps in background?
2. Can it be rooted (I guess yes, from Dev section). If yes, can I run ICS?
3. Any hack or ROM or something for 1080p video?
4. Will you suggest getting this phone now?
5. Most important, is it really both GSM and CDMA?
Thanks
Click to expand...
Click to collapse
1. It si not Laggy, GB is running very smooth and stable.
2. yes, and you can flawlessly run ICS.
3. try UKB.. its nice
4. you can visit Mobile shops or search in craigslist or in google, you will get many..
5. yes, Incredible2 supports both CDMa and GSM but one at a time...

Tmobile note 2 on AT&T?

My wife and I are considering taking our tmobile phones over to AT&T. There both unlocked... Note 2 & sg3. Question I have is would I have to flash AT&T modems and roms to be able to fully utilize the new network? Just don't want to end up with bricks. AT&T already told me both devices unlocked will work fine on the network.

Wat I'm asking is if I can utilize the lte on the t-889 if I put it on AT&T? I found a bunch of threads with mixed responses.

fix-this! said:
My wife and I are considering taking our tmobile phones over to AT&T. There both unlocked... Note 2 & sg3. Question I have is would I have to flash AT&T modems and roms to be able to fully utilize the new network? Just don't want to end up with bricks. AT&T already told me both devices unlocked will work fine on the network.
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It should work fine but the only problem is you wont have LTE

chousayz said:
It should work fine but the only problem is you wont have LTE
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Why's that? AT&T says I will be able to use lte since my area has it. If not I probably won't do this. As I've said I've read mixed responses. Could I flash AT&T radios to utilize it?

It will give you weak service because att and t mobile run on different bands which is hardware related not software
Sent from my GT-N7105 using xda premium

Android The Greek said:
It will give you weak service because att and t mobile run on different bands which is hardware related not software
Sent from my GT-N7105 using xda premium
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I dunno about that as many said everything works but LTE. I have also read a few that says they have LTE enabled. That's what's confusing. I may go to AT&T tomorrow and have them test a sim before I decide to switch. I assume if I change to AT&T apn ill get better 4g speed at least. The limitation your speaking to its a locked radio for the t-889 that prevents LTE from being enabled currently.

I can't quickly tell, but if it has LTE support on band 17 (700MHz) then it will work. It's a T-Mobile phone so it has support on band 4 which AT&T only uses for a very small part of its LTE network.
Like you said the radio it comes with might be locked to not allow LTE. If you can flash an AT&T radio without issue then you'd be able to see if it works.
If I were to guess I'd say it would have the right band since it's basically the same phone that AT&T sells.

Does it at least get hspa+ and 3G? I can wait for lte.

fix-this! said:
Does it at least get hspa+ and 3G? I can wait for lte.
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Click to collapse
It should. Just put an AT&T SIM in and see.

petard said:
It should. Just put an AT&T SIM in and see.
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Click to collapse
I'll be going to AT&T tomorrow to test before I switch carriers.

fix-this! said:
Why's that? AT&T says I will be able to use lte since my area has it. If not I probably won't do this. As I've said I've read mixed responses. Could I flash AT&T radios to utilize it?
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The AT&T rep you spoke to definitely isnt informed on the hardware issue.
If you are switching over you should just sell those two phones you have and just buy new ones since its new activation Im sure you can get a good price on the phones

chousayz said:
The AT&T rep you spoke to definitely isnt informed on the hardware issue.
If you are switching over you should just sell those two phones you have and just buy new ones since its new activation Im sure you can get a good price on the phones
Click to expand...
Click to collapse
From what I understand its not hardware, it's because of a radio limitation currently. Lte isn't enabled yet on the t-889. That's why I asked if I could flash a AT&T radio. As long as I get 4g and 3G ill switch. The whole point was to save $$ on buying new devices.

fix-this! said:
From what I understand its not hardware, it's because of a radio limitation currently. Lte isn't enabled yet on the t-889. That's why I asked if I could flash a AT&T radio. As long as I get 4g and 3G ill switch. The whole point was to save $$ on buying new devices.
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Well please understand it's hardware. Been that way forever
Sent from my SGH-I777 running AOKP

brandonarev said:
Well please understand it's hardware. Been that way forever
Sent from my SGH-I777 running AOKP
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Well as long as I get 3G and decent hspa+ speeds ill be happy. I'll be getting the s4 anyways when it comes out. I don't have lte anyways with tmobile lol.

[Q] Is there any way to use the Tmobile S4 on Verizon?

Is there any way to use an unlocked tmobile s4 on verizon???? Can you flash a certain modem to make it work?
Sent from my SCH-I535 using Tapatalk 2

No. GSM phones are incompatible with CDMA networks.

verizon
I have a stock sgh-m919 and I gave my imei to Verizon over the phone, they stated they could not use my phone on a prepaid plan, but I did not inquire about a contract plan. Visit a store and ask questions.
I realize Verizon is CDMA, but I have seen those radio ROMs somewhere to change the frequency of the radio. I think it would require more than that, perhaps even an imei change, I don't really know, I'm just going out on a limb here.
From what I understand Verizon does use the 700Mhz band like AT&T but they use a different portion of the band, the upper is what I read. Google 700Mhz LTE, I think that it will come up.
good luck, let me know how that turns out.
Also, my mother has a Iphone 4S on Verizon and although I don't really like apple products, I do know that it has a sim card slot, so that taken into consideration, perhaps there is hope.

inspectergadget said:
I have a stock sgh-m919 and I gave my imei to Verizon over the phone, they stated they could not use my phone on a prepaid plan, but I did not inquire about a contract plan. Visit a store and ask questions.
I realize Verizon is CDMA, but I have seen those radio ROMs somewhere to change the frequency of the radio. I think it would require more than that, perhaps even an imei change, I don't really know, I'm just going out on a limb here.
From what I understand Verizon does use the 700Mhz band like AT&T but they use a different portion of the band, the upper is what I read. Google 700Mhz LTE, I think that it will come up.
good luck, let me know how that turns out.
Also, my mother has a Iphone 4S on Verizon and although I don't really like apple products, I do know that it has a sim card slot, so that taken into consideration, perhaps there is hope.
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Click to collapse
A Verizon model will work on T-Mobile, just not the other way around :/

chubbrock said:
Is there any way to use an unlocked tmobile s4 on verizon???? Can you flash a certain modem to make it work?
Sent from my SCH-I535 using Tapatalk 2
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Click to collapse
Well I've been traveling for a while now with T-Mobile service with my T-Mobile s4 *cough* *unlocked* *cough*, and it does pick up Verizon service and I am able to call and text due to the agreements the carriers have. So I don't see why not. And as to activating any phone on Verizon prepaid, you can't .only have the options they have.
Sent from my SAMSUNG-SGH-I337 using Tapatalk 4 Beta

[Q] Anyone using the Verizon version with GSM or AWS sim cards yet?

Hey guys. I know this phone is new to verizon still but has anyone had any luck trying this out on Tmobile yet? I can't seem to find any information on there being a difference in innards between the Verizon and ATT or Tmobile variant.

I've been using it on metropcs but I can't figure out how to get mms or data faster the edge.
Sent from my HTC6500LVW using xda app-developers app

NSRpxndxhou said:
I've been using it on metropcs but I can't figure out how to get mms or data faster the edge.
Sent from my HTC6500LVW using xda app-developers app
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You'll have to find a way to manually enter MetroPCS APN settings. A SIM card by itself usually only provides the most basic connection settings for a phone to use.

Hello, I have a Verizon phone, which I unlocked and I am using with MetroPCS sim card. Everything works except I don't have 4G. I have internet but not 4G. Some ideas how I can fix that and actually use the 4G? Thanks!

dohcvtec said:
Hello, I have a Verizon phone, which I unlocked and I am using with MetroPCS sim card. Everything works except I don't have 4G. I have internet but not 4G. Some ideas how I can fix that and actually use the 4G? Thanks!
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There is no fix. The m7vzw does not get the receive the proper frequency for it. Verizon blocks some radio frequency bands. ****in verizon.

Can't blame Verizon for not allowing other frequencies they don't use on their phones. They have the phones made for their service. So why can't they have it their way?

Actually, I can blame them. It isn't like they give you the phone free. We pay for them. It would be nice if they stopped modifying them to prevent them from using all the functions built into the standard model. Not just radio bands, but the FM radio also. And the fact you can't use htcdev is also BS.

ccarr313 said:
Actually, I can blame them. It isn't like they give you the phone free. We pay for them. It would be nice if they stopped modifying them to prevent them from using all the functions built into the standard model. Not just radio bands, but the FM radio also. And the fact you can't use htcdev is also BS.
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Click to collapse
If you look at the flip side, if you were the carrier wouldn't you have a hard time diagnosing phones...lets say you have 100 different roms. It would be a nightmare to do tech support for a ROM that was not built by them, hence the lock down (look @ Apple). Although you pay for the phone, there should be some type of baseline quality control over the network that Verizon needs to have over their phones. Its like saying you're paying for a Ferrari but you hate the MPG so you want to do an engine swap to a civic engine to achieve 40-50 mpg. Yes, is it possible to do it...maybe...but you wouldn't get the same performance you would expect from a Ferrari.
Yes, I totally hate the fact that you can't use HTCDev, thankfully I was lucky enough to have been one of the few people who was able to use HTC Dev before they blocked the numbers for Verizon. I think they should allow HTC Dev but allow the typical one year warranty on the hardware only...but that's only wishful thinking...=(