Develop Bugs

World phone question - insert SIM here

I am thinking of picking up a DInc 2 when I upgrade from my DInc to a Rezound. The DInc 2 would be used for a home phone and international travel (our family travel is primarily international).
My question is, can I just pick up a SIM in Europe or Southeast Asia and put it in and there I go? Or do I need to use Verizon's Worldphone service? As you all may know, international cell phone rates in Europe and Asia are cheaper than here, and in some cases there are no additional "international" calling rates.
Sorry if this is a repeat, but I searched the DInc 2 threads very briefly before asking.
Thanks in advance for all help!
Sent from my Dell Streak 7 using Tapatalk

WookieFan said:
I am thinking of picking up a DInc 2 when I upgrade from my DInc to a Rezound. The DInc 2 would be used for a home phone and international travel (our family travel is primarily international).
My question is, can I just pick up a SIM in Europe or Southeast Asia and put it in and there I go? Or do I need to use Verizon's Worldphone service? As you all may know, international cell phone rates in Europe and Asia are cheaper than here, and in some cases there are no additional "international" calling rates.
Sorry if this is a repeat, but I searched the DInc 2 threads very briefly before asking.
Thanks in advance for all help!
Sent from my Dell Streak 7 using Tapatalk
Click to expand...
Click to collapse
you can use any sim, but have to use The Verizon unlock code that you can call and ask them for.
Sent from my Incredible 2 using xda premium

knipp21 said:
you can use any sim, but have to use The Verizon unlock code that you can call and ask them for.
Sent from my Incredible 2 using xda premium
Click to expand...
Click to collapse
Once you use the unlock code, do you ever need to re-enter the code after flashing another ROM or doing any type of reset? When I asked for my code, the tech told me I would need to reenter it after a factory reset. (I am sure they were assuming I would still be using the factory ROM.)

I'm thinkin about picking up the Dinc2 and using it until I buy the Rezound. It has GSM/CDMA bands, but Im curious to know if it could work on T-Mobile so I can let my little brother use it.

I had no problem unlocking my inc2 when I visited England a couple months ago. Just phone verizon up and if the rep won't unlock it just keep calling until you get one who will. Do not listen to what they say. 99% of the time the reps know next to nothing about unlocking and will try to sell you an international plan.

General_Tso said:
Once you use the unlock code, do you ever need to re-enter the code after flashing another ROM or doing any type of reset? When I asked for my code, the tech told me I would need to reenter it after a factory reset. (I am sure they were assuming I would still be using the factory ROM.)
Click to expand...
Click to collapse
unlocking the phone Sim Card is permanent , you will not be asked for it again whatever you do
You can use any Sim Card and it will work
After factory reset : if you are using the original ( stock ) firmware , then you need Verizon activation ( Very big problem if there is no Verizon coverage) . if you are rooted you will not be asked for activation
the stock software has stock recovery which will erase All internal memory parts including Verizon Programing during Factory reset
after rooting , a Custom recovery like CMW is installed , Custom recovery does not erase the Part including Verizon Programming during Factory reset , therefore no activation will be required
if you Did a factory Reset By mistake while you are Abroad (there is No Verizon Service) using Stock Rom ( i.e Not Rooted ) there are 2 Solutions :
Solutions 1 is to Call Verizon and follow instructions ?? ( i don't know if it works ,but i guess it will )
Solutions 2 is to reprogram CDMA information manually until you get Back using Software for that ( I don't know if it is Permitted by Verizon ,Check first with them ) . this method is confirmed 100% to work by some Posts ( those software are powerful and a bit complicated and could harm your Phone if you don't know what you're Doing )
hope this helps
---------- Post added at 10:32 AM ---------- Previous post was at 10:03 AM ----------
WookieFan said:
I am thinking of picking up a DInc 2 when I upgrade from my DInc to a Rezound. The DInc 2 would be used for a home phone and international travel (our family travel is primarily international).
My question is, can I just pick up a SIM in Europe or Southeast Asia and put it in and there I go? Or do I need to use Verizon's Worldphone service? As you all may know, international cell phone rates in Europe and Asia are cheaper than here, and in some cases there are no additional "international" calling rates.
Sorry if this is a repeat, but I searched the DInc 2 threads very briefly before asking.
Thanks in advance for all help!
Sent from my Dell Streak 7 using Tapatalk
Click to expand...
Click to collapse
Yes you can use any sim, but call Verizon for unlock code before you travel.
if you are using Stock Rom , Don't do master reset when abroad , see my other post for explanation

knipp21 said:
you can use any sim, but have to use The Verizon unlock code that you can call and ask them for.
Sent from my Incredible 2 using xda premium
Click to expand...
Click to collapse
Do you know if you have to pay them or of any limitations for asking for the unlock code?
Thanks

Is switching back and forth between radios fast, or do I have to turn the handheld off? Or is it able to switch automatically?

trkaaa said:
unlocking the phone Sim Card is permanent , you will not be asked for it again whatever you do
After factory reset : if you are using the original ( stock ) firmware , then you need Verizon activation ( Very big problem if there is no Verizon coverage) . if you are rooted you will not be asked for activation
the stock software has stock recovery which will erase All internal memory parts including Verizon Programing during Factory reset
after rooting , a Custom recovery like CMW is installed , Custom recovery does not erase the Part including Verizon Programming during Factory reset , therefore no activation will be required
hope this helps
Click to expand...
Click to collapse
Thanks so much for the thorough response.

dragonrazorz said:
I'm thinkin about picking up the Dinc2 and using it until I buy the Rezound. It has GSM/CDMA bands, but Im curious to know if it could work on T-Mobile so I can let my little brother use it.
Click to expand...
Click to collapse
i believe its EDGE only if you use it on Tmobile or ATT

Alright, thanks...tmo only has edge/2g around here anyway
Zax_Was_Here said:
i believe its EDGE only if you use it on Tmobile or ATT
Click to expand...
Click to collapse
Sent from my ADR6425LVW using XDA App

anarchian said:
Is switching back and forth between radios fast, or do I have to turn the handheld off? Or is it able to switch automatically?
Click to expand...
Click to collapse
switching back and forth between radios is fast ( even you don't feel it ) . you don't have to turn the handheld off?
it will switch automatically when it detects a Sim Card to Global Mode . and Vice verse if you removed sim Card ( CDMA phone)
according to the setting you choose the phone will react , you can check my Post regarding that here http://forum.xda-developers.com/showthread.php?t=1372052
---------- Post added at 12:16 AM ---------- Previous post was at 12:06 AM ----------
vrgelinas said:
Do you know if you have to pay them or of any limitations for asking for the unlock code?
Thanks
Click to expand...
Click to collapse
the Unlock code is Free
i think there is a limitation that you should be contracted with them more than 6 month , not sure ( limited knowledge about that )
keep calling , one representative will give you the code

vrgelinas said:
Do you know if you have to pay them or of any limitations for asking for the unlock code?
Thanks
Click to expand...
Click to collapse
No limitations. You have to agree to some waiver that says they aren't responsible for extra fees that you incur using a different Sim.
Also you have to be a good standing customer and have been with them for 6 months. I was told you also CAN'T unlock more than one phone on the same plan within 8 months (or some time frame like that)
Sent from my Incredible 2 running on Skyraider Zeus 1.3

[Q] Unlocked T989 With Straight Talk

Wondering if anyone here has any experience or recommendations. I moved to an area where T-Mobile service is terrible. I'm considering doing the straight talk bring your phone option and getting the AT&T compatible sim since my phone is unlocked. I'm not sure how this would work as far as what radio i'd need to flash and whether other people have had good experiences with straight talk especially using a "tmobile" device with the at&t sim/service.

philo_ said:
Wondering if anyone here has any experience or recommendations. I moved to an area where T-Mobile service is terrible. I'm considering doing the straight talk bring your phone option and getting the AT&T compatible sim since my phone is unlocked. I'm not sure how this would work as far as what radio i'd need to flash and whether other people have had good experiences with straight talk especially using a "tmobile" device with the at&t sim/service.
Click to expand...
Click to collapse
So Im taking it Straight Talk runs off at&t towers? I always thought it was verizon guess ill be looking into it more because I have the same exact issue.. I need to find a way to sim unlock my phone for free and if not free then something pretty cheap because I refuse to pay 25$ to websites i question are reliable or not. If you find anything post it and ill do the same for you. Also Straight talk sells sim cards for their service for 10$ if you didnt already know.

With straight talk bring your phone it operates off tmobile and or at&t towers and is gsm. Verizon is cdma and from what i've seen on the straight talk website they don't do cdma. Regarding an unlock call the carrier and as long as you up to date on your bill and have had service for a few months they should provide you with an unlock code for free. There is also a thread around here for a free T989 unlock it's a pretty easy process from what I recall.
TwoStax said:
So Im taking it Straight Talk runs off at&t towers? I always thought it was verizon guess ill be looking into it more because I have the same exact issue.. I need to find a way to sim unlock my phone for free and if not free then something pretty cheap because I refuse to pay 25$ to websites i question are reliable or not. If you find anything post it and ill do the same for you. Also Straight talk sells sim cards for their service for 10$ if you didnt already know.
Click to expand...
Click to collapse

philo_ said:
With straight talk bring your phone it operates off tmobile and or at&t towers and is gsm. Verizon is cdma and from what i've seen on the straight talk website they don't do cdma. Regarding an unlock call the carrier and as long as you up to date on your bill and have had service for a few months they should provide you with an unlock code for free. There is also a thread around here for a free T989 unlock it's a pretty easy process from what I recall.
Click to expand...
Click to collapse
Thanks for the info, The reason I didnt try getting A unlock code from tmobile before was because i herd you have to have your phone paid off before they would give you one because you could easily just switch service and keep the phone. Is that true? Because im still paying off my phone they add 20$ to my bill each month because the credit of the account holder wasnt good enough. Im gonna try looking for the thread you mentioned though.
EDIT: Also after i unlocked my phone could I use the same sim ive been using until i buy my new one? Or should i just wait to unlock when i get the new sim card? Sorry for all the questions i just wanna be cautious about this so i dont end up bricking my phone.

TwoStax said:
Thanks for the info, The reason I didnt try getting A unlock code from tmobile before was because i herd you have to have your phone paid off before they would give you one because you could easily just switch service and keep the phone. Is that true? Because im still paying off my phone they add 20$ to my bill each month because the credit of the account holder wasnt good enough. Im gonna try looking for the thread you mentioned though.
EDIT: Also after i unlocked my phone could I use the same sim ive been using until i buy my new one? Or should i just wait to unlock when i get the new sim card? Sorry for all the questions i just wanna be cautious about this so i dont end up bricking my phone.
Click to expand...
Click to collapse
If you unlock you can still use your sim. I am getting a rom put on T-989 right now with a Straight Talk Sim card. I unlocked mine back in April but then got the Note. I was on Tmobile but data was horrible outside the big cities. Have been on the AT&T ST sim since last April on my Note and love it. Just wanted to try the GS2 out again and looking for a decent rom. Having trouble with slim bean and CM.
---------- Post added at 03:50 PM ---------- Previous post was at 03:44 PM ----------
Also tell T-mobile you are going to travel overseas in Europe and you want to use some prepaid plans there. They should unlock then even if still under contract.
---------- Post added at 03:57 PM ---------- Previous post was at 03:50 PM ----------

pfer10 said:
If you unlock you can still use your sim. I am getting a rom put on T-989 right now with a Straight Talk Sim card. I unlocked mine back in April but then got the Note. I was on Tmobile but data was horrible outside the big cities. Have been on the AT&T ST sim since last April on my Note and love it. Just wanted to try the GS2 out again and looking for a decent rom. Having trouble with slim bean and CM.
---------- Post added at 03:50 PM ---------- Previous post was at 03:44 PM ----------
Also tell T-mobile you are going to travel overseas in Europe and you want to use some prepaid plans there. They should unlock then even if still under contract.
---------- Post added at 03:57 PM ---------- Previous post was at 03:50 PM ----------
Click to expand...
Click to collapse
Well if you want a good rom for the tmobile sii tryout jedimindtricks x3 (Not the version 6 because your calling wont work), its a good rom has the s3 gallery, supervideo, and media player. I would post a link but i need 10 post. thanks for the help though. ima see if i cant get it unlocked by myself first. last resort will be tmobile.

TwoStax said:
So Im taking it Straight Talk runs off at&t towers? I always thought it was verizon guess ill be looking into it more because I have the same exact issue..
Click to expand...
Click to collapse
Both, the phones they used to sell would have either a "C" or "G" at the end of the model# indicating whether it was CDMA or GSM compatible. Not sure about some of their newer phones though, since I think they also have HSPA phones now.
I would imagine the network they assign you to when you bring your own phone would depend on your current network since I think they still operate on both towers.
Sent from my SGH-T989 using xda app-developers app

GS2_Man said:
Both, the phones they used to sell would have either a "C" or "G" at the end of the model# indicating whether it was CDMA or GSM compatible. Not sure about some of their newer phones though, since I think they also have HSPA phones now.
I would imagine the network they assign you to when you bring your own phone would depend on your current network since I think they still operate on both towers.
Sent from my SGH-T989 using xda app-developers app
Click to expand...
Click to collapse
When you buy the sim you can select either Tmobile or AT&T. AT&T has better coverage in my area. You can't buy the sim at Wally World. Only online.
http://www.straighttalksim.com/

HTC 10 Sim Unlock Code

I'm using t-mobile HTC 10 around a week, but want switch to AT&T now as the AT&Ts 4g internet connection is faster in my area. To my surprise not so many services can unlock this phone at this moment (maybe because the phone just came on market, hard locked or smth). found some services where htc 10 is supported. Just want to ask- is anyone used these services?
Mod Edit
I will update this list (will delete or will add new sources according your recommendations, please PM me):fingers-crossed:

eldar4uk said:
I'm using t-mobile HTC 10 around a week, but want switch to AT&T now as the AT&Ts 4g internet connection is faster in my area. To my surprise not so many services can unlock this phone at this moment (maybe because the phone just came on market, hard locked or smth). found some services where htc 10 is supported. Just want to ask- is anyone used these services?
Mod Edit
I will update this list (will delete or will add new sources according your recommendations, please PM me):fingers-crossed:
Click to expand...
Click to collapse
Why not take it back and get the unlocked version?

Superguy said:
Why not take it back and get the unlocked version?
Click to expand...
Click to collapse
Upfront cost

I wonder if someone can come up with a SIM Unlock like this for the M9
http://forum.xda-developers.com/one-m9/general/sim-unlock-method-t3143333

Tikerz said:
I wonder if someone can come up with a SIM Unlock like this for the M9
http://forum.xda-developers.com/one-m9/general/sim-unlock-method-t3143333
Click to expand...
Click to collapse
just tried and not worked for my device
I heard that all super new phones are hard locked (locked with a higher level of encryption), so that's why so difficult to unlock at this moment(

PunishedSnake said:
Upfront cost
Click to expand...
Click to collapse
PayPal credit, 12 months same as cash?
Sent from my HTC 10 using XDA-Developers mobile app

Try simdoctor.com very reliable... Pick unlock via "device unlock" app

PunishedSnake said:
Upfront cost
Click to expand...
Click to collapse
Once you cancel T-Mobile you'll need to pay the balance on your phone.

entropism said:
Once you cancel T-Mobile you'll need to pay the balance on your phone.
Click to expand...
Click to collapse
Yup
---------- Post added at 08:39 PM ---------- Previous post was at 08:38 PM ----------
Superguy said:
PayPal credit, 12 months same as cash?
Sent from my HTC 10 using XDA-Developers mobile app
Click to expand...
Click to collapse
Awesome dude!

Tikerz said:
I wonder if someone can come up with a SIM Unlock like this for the M9
http://forum.xda-developers.com/one-m9/general/sim-unlock-method-t3143333
Click to expand...
Click to collapse
That's me . I've ordered a HTC 10 and will be here soon. Anyone interested in starting on a sim unlock before than. Please PM me
I am legit. Check out my work for M9 and Desire 626 sim unlock method. Plus I need this to work as the T-Mobile variant I am getting is not in their database (so no unlock app).
Thanks

@stifilz is probably the best thing that happened to the HTC M9. He sorted my sim issues on the Sprint M9 within minutes, couple of times. Helped countless others too!
Hi @stifilz, I back on HTC, this time with T-Mo HTC 10. It seems unlocked because my sim is working perfectly fine, 4g lte and all. I'm thinking of getting s-off and flashing US Unlocked RUU, just scared I might lose the sim unlock.
stifilz said:
That's me . I've ordered a HTC 10 and will be here soon. Anyone interested in starting on a sim unlock before than. Please PM me
I am legit. Check out my work for M9 and Desire 626 sim unlock method. Plus I need this to work as the T-Mobile variant I am getting is not in their database (so no unlock app).
Thanks
Click to expand...
Click to collapse

rdasante said:
@stifilz is probably the best thing that happened to the HTC M9. He sorted my sim issues on the Sprint M9 within minutes, couple of times. Helped countless others too!
Hi @stifilz, I back on HTC, this time with T-Mo HTC 10. It seems unlocked because my sim is working perfectly fine, 4g lte and all. I'm thinking of getting s-off and flashing US Unlocked RUU, just scared I might lose the sim unlock.
Click to expand...
Click to collapse
Mine was T-Mobile and I have converted to US no problem. My unlock was a physical unlock though.... not the tmobile APP one... Not sure how you will get on there, sorry.

stifilz said:
Mine was T-Mobile and I have converted to US no problem. My unlock was a physical unlock though.... not the tmobile APP one... Not sure how you will get on there, sorry.
Click to expand...
Click to collapse
A few questions:
1. I read somewhere that when you flash the US Unlocked RUU during setup you're asked to pick a network. Was there anything like that for you? What did you do if there was?
2. How did you do the physical unlock and how much did it cost?
3. When I bought my phone from the guy I just popped in my sim and it works. The T-Mo unlock app is still in my apps but I've decided not to touch it. How can I tell if mine is physical unlock?
Thanks!

rdasante said:
A few questions:
1. I read somewhere that when you flash the US Unlocked RUU during setup you're asked to pick a network. Was there anything like that for you? What did you do if there was?
2. How did you do the physical unlock and how much did it cost?
3. When I bought my phone from the guy I just popped in my sim and it works. The T-Mo unlock app is still in my apps but I've decided not to touch it. How can I tell if mine is physical unlock?
Thanks!
Click to expand...
Click to collapse
A physical unlock involves plugging the tool into it. You would need to buy that tool. Just try it. Worst case you SHOULD be able to flash T-Mobile and use the unlock app again. PM me if you need S-off

stifilz said:
A physical unlock involves plugging the tool into it. You would need to buy that tool. Just try it. Worst case you SHOULD be able to flash T-Mobile and use the unlock app again. PM me if you need S-off
Click to expand...
Click to collapse
Will do!
Thanks

$2 sim unlock
I used this service and got an unlock code in 3 minutes.
http://www.ebay.com/itm/221380473461

eldar4uk said:
I'm using t-mobile HTC 10 around a week, but want switch to AT&T now as the AT&Ts 4g internet connection is faster in my area. To my surprise not so many services can unlock this phone at this moment (maybe because the phone just came on market, hard locked or smth). found some services where htc 10 is supported. Just want to ask- is anyone used these services?
Mod Edit
I will update this list (will delete or will add new sources according your recommendations, please PM me):fingers-crossed:
Click to expand...
Click to collapse
Not sure of your status with this but DO NOT use htcunlockingservice.com. It was $12 to begin with, then I was informed I'd need to pay an additional $12 bc the device was hard locked. I did, they notified me they got an unlock code from Sprint server but it did not work. Site says 100% money back guarantee but thats proving as much of a pain as dealing with Sprint customer service.

Hunterhee said:
Not sure of your status with this but DO NOT use htcunlockingservice.com. It was $12 to begin with, then I was informed I'd need to pay an additional $12 bc the device was hard locked. I did, they notified me they got an unlock code from Sprint server but it did not work. Site says 100% money back guarantee but thats proving as much of a pain as dealing with Sprint customer service.
Click to expand...
Click to collapse
Sprint unlock is not done by code. It is not a GSM phone. It is CDMA/GSM so it is unlocked different. Search xda HTC Sprint NV unlock

stifilz said:
Sprint unlock is not done by code. It is not a GSM phone. It is CDMA/GSM so it is unlocked different. Search xda HTC Sprint NV unlock
Click to expand...
Click to collapse
I unlocked it myself using the basic flasher and NV tools, I was just relaying what they were telling me and the horrible experience of dealing with them so that it may save someone else the headache lol.

Help!
Hy all! I need help! I have NCK code but not working.
After entering the PIN code you will not ask for the NCK code. The phone starts. And no network. I do not know to write the code.Network Locked. Please help me! Software version 1.95.771.3 ,HTC 10 , 3AT :crying:

Unlocked, Dual-SIM Note 10+ - No Data on AT&T SIM

So - this is my 1st Dual-SIM phone, and I'm very happy to get away from having to carry 2 different phones (personal on T-Mobile; work on AT&T - in the USA). I thought that everything had been working correctly - until I was away from my Wi-Fi signal. If I have SIM1 selected for data (T-Mobile), everything is fine. If I select SIM2 - I get nothing. It always shows 3G for AT&T even though I'm in a very strong 4G area for AT&T.
I've been through the Access Point Names settings for AT&T and they matched what I found on AT&T's web site. I even duplicated them with a new name to make sure that they were correct - still nothing. I've played around with which slot the SIM card was in as well as only installing one at a time (just AT&T in SIM1, just AT&T in SIM2, etc.) rebooting the phone each time - still no luck.
Hoping for an assist or "things to try" from the community as I don't expect much help from AT&T on an unlocked phones. Any help is very much appreciated!
Thanks!

tmatlack said:
Hoping for an assist or "things to try" from the community as I don't expect much help from AT&T on an unlocked phones. Any help is very much appreciated!
Thanks!
Click to expand...
Click to collapse
Welcome to the DS family. Does SIM card manager show 4G/3G/2G enabled for both SIM's? On my older Note 8 4G wasn't supported simultaneously so you had to manually switch the 2nd SIM to 4G but on my Note 10+ this limitation doesn't exist but still worth checking.

sansnil said:
Welcome to the DS family. Does SIM card manager show 4G/3G/2G enabled for both SIM's? On my older Note 8 4G wasn't supported simultaneously so you had to manually switch the 2nd SIM to 4G but on my Note 10+ this limitation doesn't exist but still worth checking.
Click to expand...
Click to collapse
4G/3G/2G is selected for both SIM's, but still only shows 3G for the AT&T SIM.

tmatlack said:
4G/3G/2G is selected for both SIM's, but still only shows 3G for the AT&T SIM.
Click to expand...
Click to collapse
That would've been too easy. Do you observe the same behavior if you swap the SIM card positions? Also what if you put in just the AT&T SIM by itself (i.e. does it ever get 4G in either slot)?

sansnil said:
That would've been too easy. Do you observe the same behavior if you swap the SIM card positions? Also what if you put in just the AT&T SIM by itself (i.e. does it ever get 4G in either slot)?
Click to expand...
Click to collapse
I've tried both slots with just the AT&T SIM - never get data and never anything but 3G. Strange thing is calls and texts go through...

Hmm, that sounds like it's missing an LTE band it needs to get 4G with AT&T. I don't have an AT&T SIM hand to test with but for the non-US Samsung phones don't have full support for the frequency bands US carriers use (I'm assuming you have an intl phone so correct if wrong.).

I have the dual SIM and get LTE on ATT. I reckon you need to contact ATT and tell them you are using a note 10+ and need LTE enabled.

ekerbuddyeker said:
I have the dual SIM and get LTE on ATT. I reckon you need to contact ATT and tell them you are using a note 10+ and need LTE enabled.
Click to expand...
Click to collapse
Spent 2 hours on the phone with them last night. They had me set up the Access Point names over & over - no luck. They suggested I buy an AT&T branded phone. Big help...

I once came from another device to another device and had the wrong kind of sim for 4G/LTE. Or maybe the sim is damaged, or it's just registered wrong.
So: try Hard reset the device AND get a replacement sim card from ATT (can get them at the store and don't let them sucker you into paying for it). Perhaps that will do it.

Came across the post below - I do have an old AT&T SIM card (6 or 7 years?). Looks like an Android 9 update at some point caused issues with older AT&T SIM cards. I'm heading out to get a new SIM from AT&T tonight... Thanks for the attempts at helping - I'll update tonight and let you know how it goes. May be in for a fight - it's a corporate phone and I'm not authorized on the account...
https://forums.att.com/t5/Apple/Cellular-data-not-working/td-p/5731162

What's the update?
I'm in same boat well I have att work phone and T-Mobile personal. Am thinking of jumping to the international note 10 plus phone for dual SIM

joogle said:
What's the update?
I'm in same boat well I have att work phone and T-Mobile personal. Am thinking of jumping to the international note 10 plus phone for dual SIM
Click to expand...
Click to collapse
So - I was able to get it working. I had been using the same SIM card for 6+ years. However, getting a new one didn't fix the issue.
They said that the IMEI number wasn't coming up as a valid number. I had a One Plus 7 Pro laying around, so I had them register the new SIM card to that phone, and it magically started working (the old Sim didn't work in it, either). After getting that working, I just moved the SIM to the Note 10+, and haven't had any issues, since.

tmatlack said:
Came across the post below - I do have an old AT&T SIM card (6 or 7 years?). Looks like an Android 9 update at some point caused issues with older AT&T SIM cards. I'm heading out to get a new SIM from AT&T tonight... Thanks for the attempts at helping - I'll update tonight and let you know how it goes. May be in for a fight - it's a corporate phone and I'm not authorized on the account...
https://forums.att.com/t5/Apple/Cellular-data-not-working/td-p/5731162
Click to expand...
Click to collapse
tmatlack said:
So - I was able to get it working. I had been using the same SIM card for 6+ years. However, getting a new one didn't fix the issue.
They said that the IMEI number wasn't coming up as a valid number. I had a One Plus 7 Pro laying around, so I had them register the new SIM card to that phone, and it magically started working (the old Sim didn't work in it, either). After getting that working, I just moved the SIM to the Note 10+, and haven't had any issues, since.
Click to expand...
Click to collapse
Do the Samsung pay and rewards app work?

joogle said:
Do the Samsung pay and rewards app work?
Click to expand...
Click to collapse
I don't use Samsung Pay, but it was there lurking on the side (I disabled it). I use the Samsung Shop app for rewards - it works just fine.

tmatlack said:
I don't use Samsung Pay, but it was there lurking on the side (I disabled it). I use the Samsung Shop app for rewards - it works just fine.
Click to expand...
Click to collapse
Thanks what was the exact model number of your phone?
I guess it's time for me to sell my TMobile one and get the international one. I use the Samsung Pay / Cashback and Shop Samsung app from their set

joogle said:
Thanks what was the exact model number of your phone?
I guess it's time for me to sell my TMobile one and get the international one. I use the Samsung Pay / Cashback and Shop Samsung app from their set
Click to expand...
Click to collapse
SM-N9750/DS is the model I bought.

tmatlack said:
I don't use Samsung Pay, but it was there lurking on the side (I disabled it). I use the Samsung Shop app for rewards - it works just fine.
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tmatlack said:
SM-N9750/DS is the model I bought.
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Did you notice any signal degradation on T-Mobile with maybe lack of bands?
Lastly where did you buy yours from? If it was eBay what was the seller name?
Thanks

Using dual SIM tray on unlocked T-Mobile 7T

Anybody used Dual SIM Tray (bought on Amazon, eBay, AliExpress) on unlocked T-Mobile OnePlus 7T? I am planning to buy phone from eBay and wanted to check if using dual SIM tray is possible...

Not possible without flashing the international firmware which I don't think the tool is out yet to do so. If you want dual SIM I'd suggest but the international version and NOT T-Mobile variant. Hope this helps.

The post on how to convert to International Firmware has been up for over a month. I used it and am now on International Firmware. I don't have the dual tray yet but it has been ordered. And I am confident that dual SIM will work as I can already see mention of it in certain apps. Apps that made no mention of it before the conversion.
Link

jcotterman said:
The post on how to convert to International Firmware has been up for over a month. I used it and am now on International Firmware. I don't have the dual tray yet but it has been ordered. And I am confident that dual SIM will work as I can already see mention of it in certain apps. Apps that made no mention of it before the conversion.
Link
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Could you share the link where you bought and your feedback is good?

Short answer: yes, doing this now. Just grabbed the cheapest one on amazon (was $6 but the seller has since sold out).
Unless the tmobile variant you're buying is already bootloader unlocked, it's critical that it's permanently sim-unlocked. That should generally also mean that the phone was fully paid off (although not the case if unlock was obtained from mobbdeep here). Do also know that it will take 7 days to get your bootloader unlock bin after submitting the request.
All in all, unless it's a terrific deal and you can be sure / chance it being fully paid off, not reported stolen, permanently sim-unlocked, and you're capable of flashing to global firmware, you're probably better off getting the regular hd1905 variant.

trade said:
Could you share the link where you bought and your feedback is good?
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I bought it from here: Link
So far I have not been able to actually insert it into the phone. The tray looks like it should fit but I can't seem to work it in. I gave it about 20 seconds and then went off on a different project. I will look at it again this weekend.
ziddey said:
Short answer: yes, doing this now. Just grabbed the cheapest one on amazon (was $6 but the seller has since sold out).
Unless the tmobile variant you're buying is already bootloader unlocked, it's critical that it's permanently sim-unlocked. That should generally also mean that the phone was fully paid off (although not the case if unlock was obtained from mobbdeep here). Do also know that it will take 7 days to get your bootloader unlock bin after submitting the request.
All in all, unless it's a terrific deal and you can be sure / chance it being fully paid off, not reported stolen, permanently sim-unlocked, and you're capable of flashing to global firmware, you're probably better off getting the regular hd1905 variant.
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You are correct. And I did use Mobbdeep for my SIM Unlock. And, of course, the Bootloader unlock for International Firmware install from O+.

Were you able to insert the tray into the phone?
jcotterman said:
I bought it from here: Link
So far I have not been able to actually insert it into the phone. The tray looks like it should fit but I can't seem to work it in. I gave it about 20 seconds and then went off on a different project. I will look at it again this weekend.
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Bump. Any luck?

i currently have a dual sim tray installed into my tmobile varient and it shows fine ive installed 2 sims before and it seemed to let me select which one i wanted as the primary only thing i have noticed is that both sims imei is the same so idk if that has any affect on it

allenjthomsen said:
i currently have a dual sim tray installed into my tmobile varient and it shows fine ive installed 2 sims before and it seemed to let me select which one i wanted as the primary only thing i have noticed is that both sims imei is the same so idk if that has any affect on it
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Please clarify if you have just an unlockted TMo OP7T with a dual SIM tray OR if you have flashed the phone to an international ROM?
If it is the former, I assume you are able to use both SIMs. Can you do voice, text and data on both SIMs?
PS: Please share a link/name from where you purchased the dual SIM tray. Thanks.

awaraarawa said:
Please clarify if you have just an unlockted TMo OP7T with a dual SIM tray OR if you have flashed the phone to an international ROM?
If it is the former, I assume you are able to use both SIMs. Can you do voice, text and data on both SIMs?
PS: Please share a link/name from where you purchased the dual SIM tray. Thanks.
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Read the thread. TMO firmware does not support dual sim.

ziddey said:
Read the thread. TMO firmware does not support dual sim.
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That's what I read and thought/knew. I guess the framing of the comment threw me off.
For those who have migrated the TMo phone to the Global ROM, please share if voice, text and data is functional on both SIMs. I have read WiFi calling and other stuff works but was not sure of data. Would be also helpful to find out where you purchased the dual SIM tray....just so I can buy from the same seller and be assured of the fit.

i flashed the international rom and bought the dual sim tray off amazon everything worked fine calls texts data at least for me

I am using TMO 7T unlocked rooted converted to Int'l OOS, using dual SIM (Tmo and ATT). Talk Text works on both no issue. VoLTE works on both. VoWiFi works on TMo, not sure for ATT since its Work SIM.

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ysfk7 said:
I am using TMO 7T unlocked rooted converted to Int'l OOS, using dual SIM (Tmo and ATT). Talk Text works on both no issue. VoLTE works on both. VoWiFi works on TMo, not sure for ATT since its Work SIM.
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allenjthomsen said:
i flashed the international rom and bought the dual sim tray off amazon everything worked fine calls texts data at least for me
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can you guys share where you got the dual sim tray from?

I bought mine from aliexpress, seller Tablet PC Mall.
BakaB said:
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can you guys share where you got the dual sim tray from?
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warlord2045 said:
I bought mine from aliexpress, seller Tablet PC Mall.
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eBay

For those of you who have flashed international firmware, have any of you been able to relock your bootloader after the fact to get rid of the boot warning and to make protected apps (Google Pay, etc) work? Seems like, using a OnePlus image, this should work...

tecsbrain said:
For those of you who have flashed international firmware, have any of you been able to relock your bootloader after the fact to get rid of the boot warning and to make protected apps (Google Pay, etc) work? Seems like, using a OnePlus image, this should work...
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Msmtoolkit is the best and safest way to lock your booloader. However with magiskhide the apps you mentioned should work. Unless they are checking the bootloader status

tecsbrain said:
For those of you who have flashed international firmware, have any of you been able to relock your bootloader after the fact to get rid of the boot warning and to make protected apps (Google Pay, etc) work? Seems like, using a OnePlus image, this should work...
Click to expand...
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I know this thread is getting old but yes. I unlocked the bootloader on T-Mobile varient, flashed international firmware, did an immediate OTA update and then relocked the bootloader. All is great. Using a dual SIM tray now and both SIM slot work fine...no issues.