EDIT: No feasible solution found, so I had the device sold. Question closed.
UPDATE ON THE ISSUE: It seems that it would not recognize WCDMA networks (GSM works properly), hence no signal on my WCDMA-only SIM card. Any ideas?
Hello all, new joining the Relay 4G forums
Long story short, so I got my Relay 4G today, but it just wouldn't fully recognize my China Unicom SIM card. Symptoms and information:
1) No signal
2) Correctly displays my carrier's name, but says "emergency calls only"
3) Can search for available carrier networks, including China Unicom, but fails to register on the network - it says "unable to connect, try later"
4) The device has a correct IMEI instead of a generic one
5) Doesn't prompt me to enter SIM UNLOCK CODE when I first plugged in the SIM card
6) SIM unlocking procedures posted in the forum doesn't help - the phone should be unlocked when I bought it
7) It recognizes another SIM card from China Mobile (WTF!!) and works properly
8 ) China Unicom uses the 2100MHz band, which is supported by Relay 4G
So now I'm out of ideas... Any help would be appreciated. Thanks
Sent from Google Nexus 4 @ CM11
See this thread for sim unlock. http://forum.xda-developers.com/showthread.php?p=40835465
croogrog said:
See this thread for sim unlock. http://forum.xda-developers.com/showthread.php?p=40835465
Click to expand...
Click to collapse
...So this phenomenon means this really is SIM-locked? Good, I'll revert to ICS and try unlocking with that method...
One question: why doesn't it prompt me to enter unlock code when I inserted the SIM?
@croogrog It didn't turn out to be that simple... SIM unlock procedures didn't work at all even though I got all the timings right. I think the problem isn't caused by SIM lock... But what can it be?
Sent from Samsung Galaxy Nexus @ CM11
Bump
Sent from Google Nexus 4 @ CM11
More strange symptom: another SIM from China Unicom got recognized quickly after I inserted it. I don't understand this...
Sent from Google Nexus 4 @ CM11
If other SIMs are working and you are able to call someone your phone was unlocked when you got it.
If your SIM isn't working it could be that you need a new one from your provider.
I had that problem years ago. My phone was too new ...or my card too old.
SGH-T699 (Relay 4G) Talk with a little Tapa
C3POID said:
If your SIM isn't working it could be that you need a new one from your provider.
Click to expand...
Click to collapse
Hmm, my not-working SIM is bought just days ago... I'll go to my carrier's deck and see if they could swap me a new card.
Sent from Google Nexus 4 @ CM11
AndyYan said:
I'll go to my carrier's deck and see if they could swap me a new card.
Click to expand...
Click to collapse
Good luck.
AndyYan said:
Hmm, my not-working SIM is bought just days ago... I'll go to my carrier's deck and see if they could swap me a new card.
Sent from Google Nexus 4 @ CM11
Click to expand...
Click to collapse
Where did you buy the phone from?
gtmaster303 said:
Where did you buy the phone from?
Click to expand...
Click to collapse
From a local importer at TaoBao (China's equivalent of eBay).
UPDATE ON THE ISSUE: I changed my SIM card for a new one at my carrier's but still won't recognize. Adding in the symptom that it can recognize another China Unicom SIM, I guess I can conclude that the problem lies within this particular SIM.
Sent from Samsung Galaxy S Relay 4G @ CM11
AndyYan said:
From a local importer at TaoBao (China's equivalent of eBay).
UPDATE ON THE ISSUE: I changed my SIM card for a new one at my carrier's but still won't recognize. Adding in the symptom that it can recognize another China Unicom SIM, I guess I can conclude that the problem lies within this particular SIM.
Sent from Samsung Galaxy S Relay 4G @ CM11
Click to expand...
Click to collapse
Best test would be to try another carrier sim all together. Not china unicom. See if the phone takes it. That way you will know for sure that it's unlocked and works. Unfortunately, there's no way to check if it's unlocked, other than to test sim cards
My next suggestion would be to consult samsung for a warranty repair, because your phone might be faulty. Or consider asking the seller that you got it from to send you another one. Let us know if you still need help
Sent from my Galaxy S Relay
gtmaster303 said:
Best test would be to try another carrier sim all together. Not china unicom. See if the phone takes it. That way you will know for sure that it's unlocked and works. Unfortunately, there's no way to check if it's unlocked, other than to test sim cards
My next suggestion would be to consult samsung for a warranty repair, because your phone might be faulty. Or consider asking the seller that you got it from to send you another one. Let us know if you still need help
Sent from my Galaxy S Relay
Click to expand...
Click to collapse
1. I checked with a China Mobile SIM and it works. Also, as said before, another China Unicom SIM also works. Only this specific SIM doesn't. It IS unlocked when I purchased it.
2. No way for a warranty - I'm in China and this is a T-Mobile USA device that many local "smartphone gurus" haven't even heard of, let alone "repairing" it.
3. The importer only has one such device in perfect condition (others have plenty of worn and torn), so exchanging is not possible...
I'm thinking of setting up an alternative solution for now...
More update on the issue: even on the China Unicom SIM that got recognized, it wouldn't connect to WCDMA/HSPA+ networks. Did an experiment: I used *#*#4636#*#* to adjust network modes, and when the device is on GSM only / GSM/WCDMA auto / WCDMA preferred, it would receive signal like normal; however, choosing WCDMA only, no signal is received. It seems like the real issue lies within the device after all...
Sent from Samsung Galaxy S Relay 4G @ CM11
...The Relay isn't a WCDMA device.
Even though the relay is a US tmobile device i would still try to contact samsung. They may be able to help you and it can't hurt. This is certainly not the first Relay to leave the US and incur problems...
Sent from my Galaxy S Relay
Jax184 said:
...The Relay isn't a WCDMA device.
Click to expand...
Click to collapse
What? I mean, my carrier has the HSPA+ 21Mbps/42Mbps it supports... What do you mean by it not supporting WCDMA?
Sent from Samsung Galaxy Nexus @ CM11
AndyYan said:
What? I mean, my carrier has the HSPA+ 21Mbps/42Mbps it supports... What do you mean by it not supporting WCDMA?
Sent from Samsung Galaxy Nexus @ CM11
Click to expand...
Click to collapse
If I understand correctly, the network mode menu option for WCDMA in the CM10 ROM is left over from the D2, which is a phone of similar spec which our developers based our ROM on. It doesn't do anything on the Relay.
Jax184 said:
If I understand correctly, the network mode menu option for WCDMA in the CM10 ROM is left over from the D2, which is a phone of similar spec which our developers based our ROM on. It doesn't do anything on the Relay.
Click to expand...
Click to collapse
But it DOES switch network modes... Or so I think, judging from the symptoms.
The first SIM only supports WCDMA(HSPA+), and when inserted, it can find my carrier's network but can't connect. On the second SIM which is compatible with both GSM/WCDMA, I lose signal only when "WCDMA only" is chosen, and under this situation the symptom is same as above. I assume that it can find my carrier's GSM network but not the WCDMA one.
Sent from Samsung Galaxy Nexus @ CM11
Bump in vain. I guess I'll be selling this phone if the issue is really within the phone itself...
Sent from Samsung Galaxy Nexus @ CM11
Hello everyone hope you can help me.
I did a full flash using fla****now.com on my us cellular note 2 sch-r950 to page plus and I got talk and txt to work but not 3g. I had gotten a USED Verizon 4g lte sim card which was what I was told would work to get 3g, but since it did not work now I've been asking around and people have told me that since the sim is 4g it is not needed to get 3g. That even w/o a sim card I should be able to get 3g but that the 3g on the phone might not be showing. I have also read that you can get 3g only with a us cellular 4g sim card, so I'm really confused.
The phone says "no sim" with the verizon 4g lte sim card so don't know if it read it I could get 3g if what I was initially told was true.... Another thing is that my old Verizon phone has a different prl than this us cellular note 2 and I am not getting service where I used to get service. Question, if I change the prl to the one that my old phone had would the note 2 give me the same coverage? I had my old phone with page plus too, just did the esn change before it was flashed. And if that would work how do I do it? One last thing does anyone know how to get 3g on this us cellular note 2 sch-r950? I really need the 3g working bc I fill my paperwork online.
Any help will be greatly appreciated. Sorry for the long post but the better explained the better the help no?
Thank you!
data on us cellular note 2
sadjetivo said:
Hello everyone hope you can help me.
I did a full flash using fla****now.com on my us cellular note 2 sch-r950 to page plus and I got talk and txt to work but not 3g. I had gotten a USED Verizon 4g lte sim card which was what I was told would work to get 3g, but since it did not work now I've been asking around and people have told me that since the sim is 4g it is not needed to get 3g. That even w/o a sim card I should be able to get 3g but that the 3g on the phone might not be showing. I have also read that you can get 3g only with a us cellular 4g sim card, so I'm really confused.
The phone says "no sim" with the verizon 4g lte sim card so don't know if it read it I could get 3g if what I was initially told was true.... Another thing is that my old Verizon phone has a different prl than this us cellular note 2 and I am not getting service where I used to get service. Question, if I change the prl to the one that my old phone had would the note 2 give me the same coverage? I had my old phone with page plus too, just did the esn change before it was flashed. And if that would work how do I do it? One last thing does anyone know how to get 3g on this us cellular note 2 sch-r950? I really need the 3g working bc I fill my paperwork online.
Any help will be greatly appreciated. Sorry for the long post but the better explained the better the help no?
Thank you!
Click to expand...
Click to collapse
Did you ever get data working? If not, I think I can help.
First did you put in a micro sim (preferrably not Verizon) t mobile att etc... Also you can root and freeze setup wizard to get rid of the "non Verizon sim card" message. Thirdly if your username and keys are wrong HDR an long, PPP and the ha and AAA usernames and passwords, then you will only have talk and text and no 3g data.
Flashing sim card models is tricky. I believe I can help.
If you already have this done and data working, please share what you did so we can learn from each other and share the knowledge wealth for the whole community. Thanks
Hey there, searched for hours and could not find an answer yet, any help is greatly appreciated.
I'm in China for 5 months and need wifi calling enabled on my samsung s8+ g9550 dual sim, 128gb
Sim #1 is the china sim, no problem
Sim #2 is the tmobile usa sim, but can not enable wifi calling, it does not have that feature, told it needs the tmobile firmware. Already tried tmobile's new digits app but connection is poor and drops call every 5 - 10 minutes.
I'm not too experienced with modding but could figure it out if pointed in the right direction. So a few questions are:
1) Is it correct what Tmobile told me... that if I flash with tmobiles firmware I can enable wifi calling? If so anyone have a link?
2) If I do flash, will the phone see both sim cards (as the Tmobile USA version is only signle sim)? Will the phone see the extra ram and memory?
3) Will there be a problem with the different processor?
4) Lastly (I hope) If you think it will work can you point me to a step by step.
Ok, well, thanks in advance, just got a one time credit for international calls made so far after being mislead by three tmobile reps. Last guy was real helpful, even called samsung but they would not send him the firmware.
Hi there! Today I received my OnePlus 7 Pro 5G(GM1925, SPRINT), I bought it from a guy in a marketplace web we use here in Argentina, he brought the phone from USA and it's unlocked..so that the thing is for some reason with my current carrier(Tuenti here in argentina) I can get full signal, calls, sms but no mobile data and the APN option isn't available for me, it says " access point name settings are not available for this user" and there is no "+" symbol and all the option are greyed out. I try with another sim, from the carrier the previous owner has and it worked like charm, same with other 2 sim card from the other 2 carriers here, i take the APN with one of the carriers and I tried to modify it but it doesnt allowed me, the edit section is greyed out, with the other one i modify it but when i put the Tuenti sim card i get the "acces point settings..." I try everything from rebooting with wifi several times to hard reset and nothing worth...what are my chances here? its a really really rare situation, i contact the carrier and they say that is a phone problem
Do I need to flash another rom? Root it and modify it? i prefer not to touch anyting.
I really need to get mobile data with my carrier, thank you in advance! Cheers
Totally unrelated, but I had an HTC U11 that was sitting in the drawer that I recently tried to activate on sprint in the US. It gave me the same problem. I had service on this phone before with data. I reinstalled stock rom, tried two different sim cards. Calls and text worked but no data. I had to get a new phone so I just got a OP7pro 5G and am just reading through the forums on it. Hope you fixed it. But if you did curious what you did to remedy it.
heyChristo said:
Totally unrelated, but I had an HTC U11 that was sitting in the drawer that I recently tried to activate on sprint in the US. It gave me the same problem. I had service on this phone before with data. I reinstalled stock rom, tried two different sim cards. Calls and text worked but no data. I had to get a new phone so I just got a OP7pro 5G and am just reading through the forums on it. Hope you fixed it. But if you did curious what you did to remedy it.
Click to expand...
Click to collapse
Hi there, i solved it doing a rebrand to an EU rom, just look up for "debrand" in the forum and it will be there!
I can't connect the T-mobile network by Mi10 Ultra. This is the first time I brought thIs Phone to US. There's no signal at all when I put the SIM card into my Phone. Did anyone solve this issue before? I've actived the VoLTE and VoWIFI button in this ROM, which's the native Chinese MIUI ROM 12.5. Appreciate any expert in this forum is able to help me on this. I saw some people said in this forum they're able to connect T-mobile with no problem. Aslo attached the phone screen copy for reference.
I am in Boston downtown so Tmobile network should be very good.
Wish I could be of more help but I also have Mi 10 Ultra on stock CN rom and using T-Mobile's network in Western Pennsylvania without issue. I literally turned the phone off, put the sim in, turned on, and received signal.
Thank you @inasense . Did anyone has my experience and did something effectively to fix it?