Develop Bugs

T-mobile s4 in nz

Hi, I'm planning on going on a long trip to nz and would like to use my phone over there. I know it has to be unlocked and stuff, but once that is all said and done, would I still have to change the radio to have good signal? The last time I went on my vacation with my sensation, the signal wasn't all that great until I flashed a radio that worked well for nz users, was wondering if that'll apply to the s4 as well. Thanks.

bump

I am an American living in Australia. (very similar mobile infrastructure w/ NZ. Kiwis to Aussies are just like Canadians to Americans)
I actually ordered the Tmo m919 sent here because all the avail bands for tmo (I still have tmo in the US). I bought it in full. Just got it a few days ago and after unlock it works great! IMO I think the tmo variant is one of the best out there. The octocores are a joke as they do not save anything on battery life not to mention performance gains. I've used tmo S3 and the tmo S4 has just about all the avail international bands out there. The only thing is there are not many dev in tmo based roms but plenty can be ported over from the i9505 variant.
On stock firmware:
1) no need to change APNS. After unlock I popped the local SIM here works great. The beauty is I pop my Tmobile SIM in, turn on wifi calling. Turn off roaming and make calls home w/ 100% clarity over wifi dialing direct US numbers w/o incurring any international fees.
Wifi calling really shines here. Will only work with active Tmobile SIM (tmo phone number).
2) All data, mms works great
3) AU and NZ do not have LTE. Just be thankful they just rolled out 4G for most networks here. There are plenty of patchy areas of 3G. Sometimes really bad in the city.
On custom firmware:
1) works even better!
2) wifi tethering hack is really good when u don't have decent internet access.
3) a lot of cheap prepaid packages here. cellular communications is about the only inexpensive thing here in AU/NZ compared with other commodities/services in the US.
*** You should call Tmo and get the unlock code well in advance. It has taken from 5-14 days to get an unlock code. My phone is newer so the free unlock method does not work (manufacture date 8/10/13). A good thing I do unlocking on the side so I plug it into my programmer box and unlock in about 3 secs.
Hope this helps

Are Verizon phones unlocked? New SIM not recognized.

I have been under the impression for a long time that Verizon phones are unlocked, and had a tech tell me this - contracts stay in effect, but phones are free to come and go. So I took my N7 (for which I pd full retail, no contract) to a prepaid carrier and was able to use it with their SIM for a couple of weeks. It took help from a tech to configure the APN settings, but things worked fine. I did get a constant message in the status bar: not a Verizon SIM. Today the phone will not work, even though it shows many 4G bars, and says: No SIM or SIM not recognized. This message pops up every time I try to dial. I called the prepaid carrier and they said they are sure that Verizon has locked the phone and I should call them to unlock it. (Right!)
I don't know if it's a coincidence, but this happened right after I ordered a cell extender which requires the purchase of its own SIM. At first I thought there must be some confusion involved with this, but tech said he was sure it was a Verizon lock. Any ideas or information? Thanks!

Yes, the Verizon N7 is carrier unlocked; however, this isn't necessarily a prerequisite to using a pre-paid carrier's service if they're already using the same CDMA frequencies (in which case, their most likely just "leasing" their service from Verizon and reselling it as their own - these companies are called MVNO's (Mobile Virtual Network Operators) and there are plenty of them out there).
What I think is most likely happening is that Verizon is temporarily deactivating your SIM card, as if it were a Verizon SIM, due to the fact that you're still using the Verizon Note7 firmware. You have a couple options here:
If you have another phone, and another SIM card, you can do like the rest of us are doing and reactivate the other phone with the other SIM and then pop it into your N7. This will restore service to your Note7 and release the "hold" on the previous SIM, so that you can repeat the process with that card next time Verizon does one of their sweeps (appears to be a weekly event). A pain in the ass? Yes. But, after doing this a few times, I've gotten the process down to about 5 minutes. I just need to make sure I have my spare phone (a Verizon Note 4) nearby wherever I am.
Because the N7 is carrier unlocked and is capable of operating on either CDMA networks (Verizon & Sprint) or GSM networks (T-Mobile & AT&T), you can flash another carrier's firmware (like T-Mobile) and use their pre-paid service, or the pre-paid service of a MVNO that operates on GSM (like Simple Mobile). I use T-Mobile as an example because I know that they are not... yet... disabling SIM Cards (temporary or otherwise), but I can't say, with certainty, that the other two are not either. I do know that all of them have pushed firmware updates to permanently disable the ability to charge the Note7, so, if you go this route, you want to make sure you flash the firmware released circa mid-late October and then do whatever is necessary to block all subsequent updates.
Hope this helps,
Matt

raneym305 said:
Yes, the Verizon N7 is carrier unlocked; however, this isn't necessarily a prerequisite to using a pre-paid carrier's service if they're already using the same CDMA frequencies (in which case, their most likely just "leasing" their service from Verizon and reselling it as their own - these companies are called MVNO's (Mobile Virtual Network Operators) and there are plenty of them out there).
What I think is most likely happening is that Verizon is temporarily deactivating your SIM card, as if it were a Verizon SIM, due to the fact that you're still using the Verizon Note7 firmware. You have a couple options here:
If you have another phone, and another SIM card, you can do like the rest of us are doing and reactivate the other phone with the other SIM and then pop it into your N7. This will restore service to your Note7 and release the "hold" on the previous SIM, so that you can repeat the process with that card next time Verizon does one of their sweeps (appears to be a weekly event). A pain in the ass? Yes. But, after doing this a few times, I've gotten the process down to about 5 minutes. I just need to make sure I have my spare phone (a Verizon Note 4) nearby wherever I am.
Because the N7 is carrier unlocked and is capable of operating on either CDMA networks (Verizon & Sprint) or GSM networks (T-Mobile & AT&T), you can flash another carrier's firmware (like T-Mobile) and use their pre-paid service, or the pre-paid service of a MVNO that operates on GSM (like Simple Mobile). I use T-Mobile as an example because I know that they are not... yet... disabling SIM Cards (temporary or otherwise), but I can't say, with certainty, that the other two are not either. I do know that all of them have pushed firmware updates to permanently disable the ability to charge the Note7, so, if you go this route, you want to make sure you flash the firmware released circa mid-late October and then do whatever is necessary to block all subsequent updates.
Hope this helps,
Matt
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Thanks. It does help and that makes sense. What was odd was that I was still able to access internet (not wi-fi, but network showing 4 bars 4G). I got a new SIM today and when I popped it in, same thing. Are you saying I would have to activate the SIM on a second phone (currently N5 still with Verizon while I prepare to leave them) before putting it back in the N7? Just keep switching SIMs back and forth?

kat3k said:
Thanks. It does help and that makes sense. What was odd was that I was still able to access internet (not wi-fi, but network showing 4 bars 4G). I got a new SIM today and when I popped it in, same thing. Are you saying I would have to activate the SIM on a second phone (currently N5 still with Verizon while I prepare to leave them) before putting it back in the N7? Just keep switching SIMs back and forth?
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Click to collapse
It's kind of a crappy solution, and one that I doubt will continue to work forever (or, at least until the N8 is released)... but yeah. That seems to be the only work aground right now.
Sent from my Verizon Samsung Galaxy Note 7 using XDA Labs

raneym305 said:
It's kind of a crappy solution, and one that I doubt will continue to work forever (or, at least until the N8 is released)... but yeah. That seems to be the only work aground right now.
Sent from my Verizon Samsung Galaxy Note 7 using XDA Labs
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Yes, and it's a whole crappy situation. I can accept the recall, but not the hotlining by Verizon. I have learned from this I will never buy a phone from a carrier again. Should have bought non-carrier specific directly from Samsung.

SM-G960F/DS on Verizon in the US

Hi all,
I have in my hands an unopened G960F/DS. I was considering this phone to replace an old model, it's long due. I thought I did my homework and was able to determine this phone worked on Verizon in the US, but a serious note on the box and further research suggests I may have been wrong. Although it would be nice to have new hardware, I am replacing the old one almost entirely out of a desire to flash a custom ROM on it. I was under the impression the lack of CDMA support wasn't a big issue given that Verizon (and everyone else) is phasing out CDMA and the phone still had LTE. Thus my choice of the F/DS. I am informed that opening the box and returning the phone will incur a charge, while keeping the box sealed and returning it will not. I am trying to decide to continue forward and test on Verizon's network here in the US or just return the thing, the choice lies in compatibility with this network. So now I get to play a guessing game.
I find myself in 4G LTE areas most of the time. I want to use data and make voice calls.
This 2-post thread suggests not much can be done:
https://forum.xda-developers.com/galaxy-s9/help/sm-g960f-verizon-network-t3856443
This guy demonstrating slower speeds, which I'm not too concerned about, but also HSPA+ in an area he usually gets LTE. In the video description he says after applying a software update it works 'fine':
https://www.youtube.com/watch?v=pkNXCK2iVO8
This site lists some band compatibility but doesn't say anything about not being able to use it with Verizon:
https://apn.gishan.net/en/apn/verizon/samsung-galaxy-s9
This site also lists band compatibility but warns about Verizon's strict device policy:
https://www.frequencycheck.com/carr...e-samsung-star/verizon-wireless-united-states
Is there any hope to use an unlocked S9 on Verizon in the US? I see this going one of several ways: 1) Everyone works out and I can make calls and use data and there are no issues and rainbows and unicorns 2) Data in certain places, no voice because something something "VoLTE" 3) Absolutely no data/voice whatsoever 4) I switch carriers I return this piece of junk and buy a phone that works. (might coincide with 2/3)
If I end up with (4), how can I avoid this issue in the future? I spent some considerable time deciding on this model, which has the features I want and an unlockable bootloader. Will the S10 have this issue? What about the Note 9? I apologize for the noobposting, and if I missed a thread that answered this question. Thanks for any help you can provide, I sincerely appreciate it.
Edit: This thread asks a similar question but isn't specific and neither are the answers:
https://us.community.samsung.com/t5/Galaxy-S9/Unlocked-galaxy-S9-on-Verizon/td-p/277493

I have been using a G965f/ds on Verizon Wireless.
VoLTE, vowifi, text, and data work after rooting.
Having done a speed test with a U device and on the g965f/ds, the speed I can receive seems equal.
I haven't had issues with making LTE calls in my area.

CynicalHeight00 said:
I have been using a G965f/ds on Verizon Wireless.
VoLTE, vowifi, text, and data work after rooting.
Having done a speed test with a U device and on the g965f/ds, the speed I can receive seems equal.
I haven't had issues with making LTE calls in my area.
Click to expand...
Click to collapse
Thanks for the feedback. Are you based in the US? How did you activate the phone? I found instructions on LTE activation here:
www . verizonwireless . com/businessportals/support/how_to_use/activate_4g_lte.html
And an IMEI checker, which fails when I enter what I find on the box my phone is in:
www . verizonwireless . com/od/prepaid/bring-your-own-device/#/checkDevice
Edit: It also looks like they have a second page that checks IMEI (this also fails for me). Can you tell me what either of these pages say when you enter your IMEI?
www . verizonwireless . com/onedp/byod#/

I reside in the US.
The imei of my g965d/fs failed when inputted in to their system;however, the SIM is all that's needed for Verizon wireless to work on it. Initially, though, you might need to insert the SIM card into another imei Verizon wireless compatible device only to allow the system to have that imei in the system for your number. Since, you already have vzw, I'm assuming you already are activated on it with a device, so moving sims is the next step.

Thanks for your input. Anyone else have experience with this device on Verizon's network?

I could have written this exact post.
jmtroth said:
Thanks for your input. Anyone else have experience with this device on Verizon's network?
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I am trying to do the same thing with the same model Note 9, SM-N960F/DS. I was told by Verizon Level 2 tech rep that simply installing an activated SIM would make the phone work, obviously 4gLTE only since there are no CDMA bands. He checked the 4 bands Verizon uses for their 4gLTE and the F/DS model has all 4 of them.
I am in the same boat as you though. IF I try it and it doesn't work I have to return and lose $125 or switch to GSM network (AT&T or TMO) I am also trying to decide whether to take the gamble. This Level 2 Tech guy didn't mention anything about having to root the phone.
I would also like to know about the advisability of attempting this. I thought I read somewhere that this phone won't have any warranty in US anyway but I am not 100% sure about that. Sellers seem to want to gloss over that issue.

I'm very very interested in this

to put this to bed, you cant use any F galaxy phone on verizon and get full usage. vzw is a CDMA based carrier whereby voice is transmitted primarily via CDMA and data over GSM (which includes voLTE, obviously). The F model do not have CDMA radios in them. You CAN get data to work and therefore voLTE as long as you can flash the vzw CSC to get the phone to install the voLTE app. Long story short, dont try it. Its a fruitless endeavor. I mean, do what you want, i guess, but dont expect for the F to work well, or at all on vzw. There is nothing anybody on xda or anywhere can do to alleviate that.

I had straight talk using Verizon towers on note 8, my note 8 broke, I missed flashing custom ROMs, I bought a note 9 n960f, read online it would work too. I inserted sim. Did not get data or calls. Flashed custom ROMs found a lineage is rom that worked with data for like 2 min then quit. I kept Singapore rom csc stock radios I guess from Singapore, guy on here said he flashed Singapore stock Odin flash and ended up making his work but didn't work with my straight talk Verizon sim. My buddy came over and he uses visible network on Verizon towers we popped in his sim and it worked flawlessly on stock Singapore csc/flashed custom rom from xda. I switched, it's cheaper, it works and first month was 5$ no fee to transfer my number over. Visible is great, join a group and it's 25$ a month.

Samsung GalaxyNote 10+ and AT&T problems only 3G phone calls and data

we have 3 Note 10+ my son ordered his the day of the preorder release. he has the 256 version and my wife and i got the 512 version.
Upon my wife and I getting the phones we replaced the sim chips with new ones from AT&T instead of removing the ones in our Pixel 3xl. I noticed that AT&T Visual voice mail wasn't there but after loging into our voice mail account it downloaded a different visual voice mail program.
however we are having signal problems, I noticed that we didn't Get Voice over WIFI, Advanced Messaging, Volte etc. I called into support 611 and explained and they said that they would re-register our phones to turn them off for a few min and back on and should be ok.
That didn't' accomplish anything. I talked with an engineer that I know that works for AT&T and he said that my son's phone is provisioned for VOLTE with torch i think but not in the account screen. My wife and my devices are not provisioned for VOLTE HOWEVER NONE of our phones are connecting for voice or data to 4G LTE only 3G. He didn't know why but would check further.
after complaining to OOP with Samsung and being within the return window they said that we could order from them the branded AT&T phones and return our unlocked phones.
I realize that we will get stuck with the bloatware, but if we are getting 4G LTE VOLTE etc. maybe that is what should be done.
If we do that can we still get them unlocked and what do we loose by doing this? I appreciate the work everyone is doing here and I think hopefully I can get an honest answer vs everyone pointing the finger at everyone else.
My big concerns are:
If I keep these what do we loose?
How bad is the bloat ware?
If we change to T Mobile or others later can we, or if we travel, get AT&T to unlock the phones
If I keep these phones and flash the AT&T files will we:
Then get access to the programs and services we don't have now?
Get over the air updates as they are released?
I would highly appreciate any advice
Thank you for everyone's help in advance

I was getting horrible battery usage on my At&t branded Note 10+. What I did was flash the U1 unlocked firmware, set things up, made a few calls, sent a few text so things provisioned to At&t. I then flashed At&t csc with odin and this gave me 4GLte..wifi calling..video calling..advanced messaging..and volte
Sent from my SM-N975U1 using Tapatalk

but your phone was branded AT&T right so theIMEI number is active in their system

I had the same issue - thankfully, I was able to test a friend's SIM card from AT&T and his worked! I saw an obscure reference (see below) to it being an issue with older SIM cards. I'm heading to AT&T store to replace mine tonight.
https://forums.att.com/t5/Apple/Cellular-data-not-working/td-p/5731162

tommyloui said:
but your phone was branded AT&T right so theIMEI number is active in their system
Click to expand...
Click to collapse
Yes it is At&t branded.
Sent from my SM-N960U using Tapatalk

Cricket canceling 7T on their network?!! As of Feb 2022

I made a call and got a message that my phone would no longer work on their network since they are upgrading things. This phone isn't that old. I wonder if their system doesn't recognize it. The lady said their system was showing it was a 2g phone so I told her it handles 4g. She said on Cricket it's only able to use 3g. Does anyone know if this is true. I don't trust some operator in another country reading off a script. It sounded like they want everyone to buy phones from their website. I can't imagine a relatively new phone not having the right band. Maybe there is a setting I need to tweak or flash onto my phone if I'm only using 3g on Cricket. I'm sure I've seen my antenna say LTE. Or maybe Cricket is screening out non Cricket phones.

Check it's specs.
If it supports the needed 4G bands it may need to be reconfigured. I haven't a clue how to do that.
Maybe Access point names but it may go deeper than that.

I'm going to google and see exactly what specs Cricket will require. I think you're right and maybe something to reconfigure. I can't imagine Cricket shutting off tons of new ish phones just because they aren't bought from Cricket. Ran a speed test now and got 2.77mbps download and 8.49mbps upload. I am showing LTE now which means I'm not on 3g as she was saying now. I bet it's a sales gimmick to scare less savy folks. What mean loose phone signal in Feb hehehe.
Edit: I was on wifi when I got the message so maybe when I phone is on wifi and not using their LTE network it doesn't detect anything which is why they told me I have a 2g phone. When I shut off wifi LTE popped right up so it's probably a glitch in their way of informing us.
Edit2: Spoke to a tech at Cricket and he said my phone currently isn't compatible with them aaahahahhaha dumb. I told him I'm currently using it on LTE just fine no issues. He didn't have anything to say when I asked him since I'm not using 3g then it shouldn't affect me. He just said he wants me to have great service so buy another phone from Cricket. BS

Only HD1905 works

bhaliyo said:
Only HD1905 works
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I have HD1907 and it's currently working on LTE. Are you referring to not working in the future or currently working?

jeffrimerman said:
I have HD1907 and it's currently working on LTE. Are you referring to not working in the future or currently working?
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Click to collapse
Not working in the future. Here is the list of devices can work after Feb 2022.

bhaliyo said:
Not working in the future. Here is the list of devices can work after Feb 2022.
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Click to collapse
That link keeps rerouting to an ATT samsung S21 advertisment. I'll try to google the list

jeffrimerman said:
That link keeps rerouting to an ATT samsung S21 advertisment. I'll try to google the list
Click to expand...
Click to collapse
See the attachment above

Yes I
bhaliyo said:
See the attachment above
Click to expand...
Click to collapse
Yes I was able to download that list when I googled. Judging by what it said these are phones that are tested and will work, not so much that other phones won't work. My phone was originally branded for Tmobile so I'm sure they wouldn't have tested it but it would have only had a different OS with Tmobile bloatware which I took off. The cricket people said their LTE isn't changing so I shouldn't have an issue but it will be interesting to find out. They must have just been looking at this list which is why they said my phone currently isn't compatible.

Funny this was asked but no answer given from ATT. I'll keep googling
OnePlus Community
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I read a discussion here from 2019 someone else asked and the different variants are by region as they usually are for the different LTE frequencies. 1905 is North American, 1907 is Tmobile in North America so I would imagine my LTE frequency is still going to be fine. Those that bought Chinese phones etc probably not.

This is weird. The current ad for it on Amazon says it's currently not compatible with ATT and Cricket. I wonder if me flashing another OS for North America or USA I forget is why it works fine? Maybe I'm screwed hehe
*** NOTE: Due to changes with AT&T and Cricket, this phone currently cannot be used on AT&T/Cricket. Compatible with T-Mobile and all GSM Networks along with their compatible MVNO networks such as Red Pocket GSM, Ultra Mobile, Mint Mobile, Ting GSM, Google FI and many others. This phone is NOT compatible with Verizon, Cricket or AT&T. Please verify with your network to ensure complete compatibility.

Spoke to a tech at Cricket and he said my phone currently isn't compatible with them
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I work at a prepaid carrier store (not Cricket) and am having to tell customers the same thing. It's not just about if your phone has the radios necessary, they have to have the IMEI approved in their system and if it's not then you can possibly escalate to someone who can help get it approved but you probably won't get very far. I can't activate my own OnePlus device with my company either, even though it's currently running on our parent network. I have spoken with internal support folks about it multiple times and have gotten nowhere so I gave up.
jeffrimerman said:
I can't imagine Cricket shutting off tons of new ish phones just because they aren't bought from Cricket.
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Click to collapse
Believe it. It sucks and it sounds insane but it's really happening. For me? I have to tell everyone with a Samsung Galaxy S5-S10 that they have to buy a new phone to be compatible with our new network changes. And I can tell you here that it's (probably) not the sales rep lying to you to make a commission sale, our tools are indeed forcing us to do that.

jtaylor991 said:
I work at a prepaid carrier store (not Cricket) and am having to tell customers the same thing. It's not just about if your phone has the radios necessary, they have to have the IMEI approved in their system and if it's not then you can possibly escalate to someone who can help get it approved but you probably won't get very far. I can't activate my own OnePlus device with my company either, even though it's currently running on our parent network. I have spoken with internal support folks about it multiple times and have gotten nowhere so I gave up.
Believe it. It sucks and it sounds insane but it's really happening. For me? I have to tell everyone with a Samsung Galaxy S5-S10 that they have to buy a new phone to be compatible with our new network changes. And I can tell you here that it's (probably) not the sales rep lying to you to make a commission sale, our tools are indeed forcing us to do that.
Click to expand...
Click to collapse
I'm just wondering why they are saying my phone currently isn't compatible when it obviously is. It works great. Even streams HD in an instant on Crickets network. Corporations aren't super efficient at checking all things under the sun. They are just checking phones they approve. They told me the same thing that my imei currently doesn't work but it does. Unless they are trying to be like Verizon and only allow specific phones in the future I'm still thinking once they shut off 3g then when someone wants to switch from Tmobile to Cricket with their unlocked working fine non 3g phone they still can or are they saying no they are going to be like Verizon and it has to be a Cricket branded phone. I don't think it's the later. I think they are just saying what will work, but not saying what won't work. Let's find out =( hehe

Read a discussion from 8 months ago. Seems like most are fine, one guy with a 1905 had issues on ATT. One guy did what I did so maybe that's why mine is fine for now. I haven't had issues like dropped calls etc but maybe the real issue I will have if Cricket adds wifi calling and VoLTE is if they use a specific frequency and the 1907 is missing it then I won't be able to use those. If Cricket only uses VoLTE then yes I am screwed in February =/
https://www.reddit.com/r/oneplus/comments/kf0hfo
"I am currently using a 7t that was advertised as factory unlocked on ebay, when it showed up and I turned it on the big bright pink Tmobile boot logo came by. I did some research and found the convert to international/global thread on xda, I got rid of the crap hydrogen OS that came with the "unlocked" Tmobile phone. Using ADB I was able to flash the international firmware Oxygen OS and haven't had any problems with at&t now."

If it's an IMEI issue, flashing with the hd1905 fw probably won't help matters. I have a hd1905 on cricket since 2019, everything but wifi calling works. The same cricket sim in a samdung s9+ yields working wifi calling.
So while the hd1905 and 1907 are essentially the same hardware devices, the serial #/imei may determine what happens come 2022.

gpz1100 said:
If it's an IMEI issue, flashing with the hd1905 fw probably won't help matters. I have a hd1905 on cricket since 2019, everything but wifi calling works. The same cricket sim in a samdung s9+ yields working wifi calling.
So while the hd1905 and 1907 are essentially the same hardware devices, the serial #/imei may determine what happens come 2022.
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Click to collapse
Yup, I'm wondering if the hardware or the IMEI will determine things. I didn't even know Cricket had wifi calling. Did Cricket even let you download the wifi calling app but it didn't work or did they not allow you to download it?
Edit: I looked it up. Looks like wifi calling will work on phones that have it built in to their OS settings. I probably won't use it if I end up buying another OnePlus phone. I wonder if there are any phones where wifi calling is working on Cricket that isn't on the list but is in the OS settings.

Wifi calling app? The s9+ was hybrid flashed. Everything but the main OS came from the U firmware (carrier), while the rom came from U1 fw. Result was working carrier features (volte/wifi calling) without the bloat.

gpz1100 said:
Wifi calling app? The s9+ was hybrid flashed. Everything but the main OS came from the U firmware (carrier), while the rom came from U1 fw. Result was working carrier features (volte/wifi calling) without the bloat.
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Click to collapse
The s9+ is probably the same as the s9 as far as the wifi calling since "+" isn't mentioned on their list.

Huh? It's right under the s9.