Should I be able to get 3G connection? - Samsung Infuse 4G

Hello, I'm currently in Taiwan and according to this website (http://www.wireless.att.com/travelguide/coverage/coverage_details.jsp?CIDL=158&MNC=CING) Infuse is able to cover all the frequencies. I'm using Chunghwa Telecom -- I took the iphone 4s sim card and put it into my infuse from america. I can only get signals for calls but can't get any data, what's going on? Is there a special settings I need to change?

tjy8tim said:
Hello, I'm currently in Taiwan and according to this website (http://www.wireless.att.com/travelguide/coverage/coverage_details.jsp?CIDL=158&MNC=CING) Infuse is able to cover all the frequencies. I'm using Chunghwa Telecom -- I took the iphone 4s sim card and put it into my infuse from america. I can only get signals for calls but can't get any data, what's going on? Is there a special settings I need to change?
Click to expand...
Click to collapse
You'll need to install a phone apk that supports your 3g connection. If you can root your phone and get CWM recovery, flash this package in CWM recovery.:
http://forum.xda-developers.com/showpost.php?p=25175608&postcount=21
Be sure to thank qkster for that post!

tjy8tim said:
Hello, I'm currently in Taiwan and according to this website (http://www.wireless.att.com/travelguide/coverage/coverage_details.jsp?CIDL=158&MNC=CING) Infuse is able to cover all the frequencies. I'm using Chunghwa Telecom -- I took the iphone 4s sim card and put it into my infuse from america. I can only get signals for calls but can't get any data, what's going on? Is there a special settings I need to change?
Click to expand...
Click to collapse
This might be a little late, but I suspect the problem is with the SIM card... If this was a 3G modem issue, you should at least be able to get 2G data download... I don't understand what you mean by "took the iphone 4s sim card and put it into my infuse..." - iphone uses micro SIM while the infuse uses standard SIM. Can you grab a standard SIM card from someone else's phone with a working data connection?

Related

[Q] Infuse working 3G on other sim cards

i am currently traveling around and i have bought the sim unlock code for the Infuse and it works great. i can use the sim cards from Taiwan and South Africa without a problem.
But the 3G capability on the sim cards are not working on the Infuse. i tried with my other phone i bought unlocked GS2 (international version) and the 3G was working great
do i need to root in order for the Infuse to be able to connect to 3G with other country's sim card? or i just need to do some setting on the phone?
please help, it's annoying carrying this big phone and unable to use it properly
thanks
You will probably need to put in the correct APN settings for your carrier. Many of the other ROMs will update the APN automatically, but the stock
ROM does not.
Sent from my SGH-I997 using XDA App
wuufer001 said:
i am currently traveling around and i have bought the sim unlock code for the Infuse and it works great. i can use the sim cards from Taiwan and South Africa without a problem.
But the 3G capability on the sim cards are not working on the Infuse. i tried with my other phone i bought unlocked GS2 (international version) and the 3G was working great
do i need to root in order for the Infuse to be able to connect to 3G with other country's sim card? or i just need to do some setting on the phone?
please help, it's annoying carrying this big phone and unable to use it properly
thanks
Click to expand...
Click to collapse
As PVD04 said thats an APN problem, go into google and search for the company you like for example i use 3g here in mexico and i typed " Telcel APN configuration" (Telcel is my carrier)
Do the same for your carrier on the country you currently are, then go into--->Settings--->Wireless and network--->Mobile Networks--->APN (access Point Names) and configure a new one typing the data you found about your overboard carrier.
That will fix it.
Also... i know its already done but... you dont need to buy the unlock code" many samsung phones can be unlocked for free Infuse can, searchf or the "how to unlock" thread next time =)
http://forum.xda-developers.com/showthread.php?t=1176886&highlight=unlock
http://forum.xda-developers.com/showthread.php?t=1093476

Able to use 3G only without physical SIM card? Network debug menu?

Is there a way to use the phone without a SIM card? I don't have LTE in my area, and I keep getting the "no SIM Error" so was thinking that the SIM was useless anyways.
On the stock ROM every time I get the SIM error, or if I remove the SIM card itself, I get no data on the phone at all. When I try to turn on Mobile Data it prompts me to insert the SIM.
On other CUSTOM or JB ROMs, I don't get the SIM error prompt but I simply get no data.
On older Sprint phones, I know you can go into the DEBUG menu to see that EVDO/3G was actually being authenticated, the handshake was negotiated, then connection type/speed/tower/hand-off status, etc. Is there such an option with Verizon phones? I'm wondering if Data is completely shut off without the SIM, or if the data connection is actually established on the network but simply blocked from being used?
PS - per recommendation I have tried using the PHONE INFO app to switch the option to NV only, but am still getting no data. Voice/Text work perfectly.
black7 said:
Is there a way to use the phone without a SIM card? I don't have LTE in my area, and I keep getting the "no SIM Error" so was thinking that the SIM was useless anyways.
On the stock ROM every time I get the SIM error, or if I remove the SIM card itself, I get no data on the phone at all. When I try to turn on Mobile Data it prompts me to insert the SIM.
On other CUSTOM or JB ROMs, I don't get the SIM error prompt but I simply get no data.
On older Sprint phones, I know you can go into the DEBUG menu to see that EVDO/3G was actually being authenticated, the handshake was negotiated, then connection type/speed/tower/hand-off status, etc. Is there such an option with Verizon phones? I'm wondering if Data is completely shut off without the SIM, or if the data connection is actually established on the network but simply blocked from being used?
PS - per recommendation I have tried using the PHONE INFO app to switch the option to NV only, but am still getting no data. Voice/Text work perfectly.
Click to expand...
Click to collapse
ASFAIK, the SIM does 3g and 4g. WHY? because 3g on the gs3 is ehrdp and that also requires a handshake between 3g and lte. I believe it is like using 3g tech but with the pipeline size of lte... or thats as far as I've read into it.
xicewallx said:
ASFAIK, the SIM does 3g and 4g. WHY? because 3g on the gs3 is ehrdp and that also requires a handshake between 3g and lte. I believe it is like using 3g tech but with the pipeline size of lte... or thats as far as I've read into it.
Click to expand...
Click to collapse
Thanks for the info, xicewallx. I was afraid of that, however I've read of people flashing both Sprint and Verizon variants of the SGS3 to Boost, Straight Talk (CDMA), Verizon Pre-Paid which all I assume do not use LTE/SIM. I presume this means that the SGS3 can certainly use 3G without the need of the SIM card. I'm looking for a way to default to this on the SGS3 for us poor folk who do not have the luxury of LTE yet and have to deal with the SIM error until Verizon/Samsung fixes it.
Any help would be greatly appreciated!
I was able to get to a debug screen using the IOTHiddenMenu option (through Any Cut) but it simply stated that EVDO was in "sleep state." I wasn't able to figure out how to get it to start a connection yet.
Go to the Verizon store and get a free SIM card? Why go through all of this trouble.
Sent from my Nexus 7
TheBiles said:
Go to the Verizon store and get a free SIM card? Why go through all of this trouble.
Sent from my Nexus 7
Click to expand...
Click to collapse
Thanks for the suggestion. Issue is that the phone is having the NO SIM error randomly. Have already tried a different SIM from Verizon (friend's account) but still have that same issue.
black7 said:
Thanks for the suggestion. Issue is that the phone is having the NO SIM error randomly. Have already tried a different SIM from Verizon (friend's account) but still have that same issue.
Click to expand...
Click to collapse
So get a new phone? That one is obviously faulty. Go get a free replacement. You have to live with it for 2 years. I wouldn't want a faulty device for a week let alone 2 years.
Sent from my SCH-I535 using Tapatalk 2
Are you in a poor signal area? Only time I've received the "No Sim" error was at my parents where the signal is crap. As for using it without the sim card, doubt that's possible since the sim is used for authentication if I'm not mistaken.
hello,
if i understand correctly, the sim card in the S3 is basically the same as all the previous world phones, meaning its just RUIM card. The MEID and IMEI are on the phone, the card it comes with is just basically a storage device in simple terms. can someone who has access to another verizon active S3 sim try putting the card into their phone and checking the IMEI that the phone reports? does swapping the cards change the IMEI in other words. I do not think it will, but interested to know for sure.
i just started playing with one of these, but i feel realy confident you can get non 4G services to work without a sim in it.
cheers,
disco
disco_y2k said:
hello,
if i understand correctly, the sim card in the S3 is basically the same as all the previous world phones, meaning its just RUIM card. The MEID and IMEI are on the phone, the card it comes with is just basically a storage device in simple terms. can someone who has access to another verizon active S3 sim try putting the card into their phone and checking the IMEI that the phone reports? does swapping the cards change the IMEI in other words. I do not think it will, but interested to know for sure.
i just started playing with one of these, but i feel realy confident you can get non 4G services to work without a sim in it.
cheers,
disco
Click to expand...
Click to collapse
You have it just about backwords. The sim is the real identifier on vzw 4g devices. You can take a working authorized sim and use it to activate another 4g Verizon phone and it will activate under the phone number associated with the sim.
Sent from my SCH-I535 using xda app-developers app
thats interesting, S3 still has an MEID also doesnt it?
thanks for the info!
cheers,
disco
disco_y2k said:
thats interesting, S3 still has an MEID also doesnt it?
thanks for the info!
cheers,
disco
Click to expand...
Click to collapse
There is still an ESN /MEID that the network uses to identify the phone for the CDMA side of the network. The process is all handled by the LTE SIM on LTE phones, though.
OP: You have a broken phone. The no-SIM error is not something that goes away. Take it to a store and get a new SIM and/or order a replacement.
Sent from my Amazon Kindle Fire using Tapatalk 2
im gonna have to dig in some more i am still not convinced the card is not a ruim card. like the other sprint and verizon world fones the imea is in the fone im pretty sure, until you instroduce another networks actual gsm card. i still the card it comes with is a simple ruim that holds the login info and other data, etc, well you know what ruim is.
does anyone have a service manual or white papers on this one yet? i would love to read through them.
thanks again bro
cheers,
disco
I'm still looking for an answer to this if anyone has any suggestions. Any way to get 3G without a SIM card?
Did you ever get a new phone from Verizon? It seems like an issue with your phone, not the network.
I have been trying something similar along the way as I have been able to get rock solid data by switching to EvDo only using the Phone Info app.
I gave determined I am connecting to a US Cellular tower when I have solid data.
But while in EvDo only I cannot send or receive calls or texts.
I am looking for a way to enable calls and text while in EvDo only mode.
Not trying to highjack just thought this is somewhat related.
TheBiles said:
Did you ever get a new phone from Verizon? It seems like an issue with your phone, not the network.
Click to expand...
Click to collapse
New phone and new SIM from Verizon seems to have made the problem less apparent, but it still happens, especially when driving through areas where reception is a bit spotty. It's really become an issue as I rely on getting emails for business, especially while traveling, and I don't get notifications of new emails if I have no data service which I don't become aware of until I actually look at the phone. Missed a couple of important emails/meeting invites because of this already...
Brenardo said:
I have been trying something similar along the way as I have been able to get rock solid data by switching to EvDo only using the Phone Info app.
I gave determined I am connecting to a US Cellular tower when I have solid data.
But while in EvDo only I cannot send or receive calls or texts.
I am looking for a way to enable calls and text while in EvDo only mode.
Not trying to highjack just thought this is somewhat related.
Click to expand...
Click to collapse
That would be fantastic if you come across something that will allow voice/text/EvDO(3G)! Have you made any headway on this? Would be glad to help in any way I can also to get this working.
black7 said:
I'm still looking for an answer to this if anyone has any suggestions. Any way to get 3G without a SIM card?
Click to expand...
Click to collapse
I flashed a VZW GS3 to Sprint. 3G data is working fine w/o a SIM card. If I put a non activated VZW card, data doesn't work obviously.
The trick in getting this to work is to use QPST to configure Profile 0 and Profile 1. When flashing to Sprint or Boost, you must also load a Sprint PRL into the device using QPST.
Sent from my SPH-L710 using Xparent SkyBlue Tapatalk 2
AlpineMan said:
I flashed a VZW GS3 to Sprint. 3G data is working fine w/o a SIM card. If I put a non activated VZW card, data doesn't work obviously.
The trick in getting this to work is to use QPST to configure Profile 0 and Profile 1. When flashing to Sprint or Boost, you must also load a Sprint PRL into the device using QPST.
Sent from my SPH-L710 using Xparent SkyBlue Tapatalk 2
Click to expand...
Click to collapse
Choose nv only, cdma evdo in phone info and program nv items and flash prl.
Sent from my SCH-I535 using xda premium
jclendineng said:
Choose nv only, cdma evdo in phone info and program nv items and flash prl.
Sent from my SCH-I535 using xda premium
Click to expand...
Click to collapse
A little off subject but I how did you get it on sprint I'm trying to get mine on verizon prepaid and have it set to nv only. I must be missing somethin because my esn/meid all look right I get data but yet no calls

[Q] Razr HD XT925 not connecting to LTE

I just bought a Fido Razr HD for connecting to Rogers network. To my surprise, I was able to connect to Rogers even though it is a Fido phone. Never the less, I paid and got the phone sim unlocked. But I noticed that my Razr never connect to LTE. It always shows it connected as H+, which I assume to be the HSPA+ network. I verfied the following:
-Rogers LTE APN for mobile - checked this against entries posted here on XDA for Rogers
-Network select set to GSM/HSPA/LTE (Auto)
I do get a strange error every time i change from another sim back to my Rogers's one, it says something like no suitable network -15, something like that. I assume my problem has to do with it being a Fido rom working on Rogers.
Am I missing something really obvious?
Thanks,
dixieflatline76 said:
I just bought a Fido Razr HD for connecting to Rogers network. To my surprise, I was able to connect to Rogers even though it is a Fido phone. Never the less, I paid and got the phone sim unlocked. But I noticed that my Razr never connect to LTE. It always shows it connected as H+, which I assume to be the HSPA+ network. I verfied the following:
-Rogers LTE APN for mobile - checked this against entries posted here on XDA for Rogers
-Network select set to GSM/HSPA/LTE (Auto)
I do get a strange error every time i change from another sim back to my Rogers's one, it says something like no suitable network -15, something like that. I assume my problem has to do with it being a Fido rom working on Rogers.
Am I missing something really obvious?
Thanks,
Click to expand...
Click to collapse
Have you tried configuring phone according to SIM?.. Configuring it according to sim will load Rogers ROM on it and it will install all Rogers crapware along on it. But i think if you don't see the LTE , it is worth trying. Also make sure your area have LTE coverage.
Motorolalover said:
Have you tried configuring phone according to SIM?.. Configuring it according to sim will load Rogers ROM on it and it will install all Rogers crapware along on it. But i think if you don't see the LTE , it is worth trying. Also make sure your area have LTE coverage.
Click to expand...
Click to collapse
Yes I have already converted to crap Rogers bloatware rom. It does that automatically when you put in a Rogers sim. Now I got bloatware and still no LTE. My Rogers work iPhone is happily LTE'ing at like 20 mbps, this one is only doing 5 mbps, booo.
dixieflatline76 said:
Yes I have already converted to crap Rogers bloatware rom. It does that automatically when you put in a Rogers sim. Now I got bloatware and still no LTE. My Rogers work iPhone is happily LTE'ing at like 20 mbps, this one is only doing 5 mbps, booo.
Click to expand...
Click to collapse
hmmm.. okay.. do one thing.. Go to setting and then mobile networks and Select network.. make sure GSM/HSPA/LTE (Auto Mode) is selected. Secondly, Remove the sim and restart the phone and then re-insert the sim and see if it works. If still it don't. Simplay factory reset it and check.
Just here to share my experience because I had a similar problem too.
I'm with fido carrier and got the razr hd with fido (in futureshop) which sucks.
Anyways long story short, same thing happened to me it kept on staying on H+ which I did speed test is only around 2-5 average...mostly 2max.
So I went in LOTS troubles finding out what's wrong and GUESS WHAT when I get the phone and the micro sim card with the sales HE SAID it IS LTE supported (because there are two different micro sim cards....one supports LTE and one doesn't)
Then I went through all troubles and finally had to talk to on of the representatives ONLINE and tell them to send me a LTE micro sim card.
For my fido sim card it does say LTE on it but don't trust the people you call you gotta force them to send you an LTE micro sim card because I called LOTS times to fido and some say on there should be LTE labelled on the micro sim and some say don't know and some say it shouldn't which pisses me off a lot until I did the ONLINE chat and they finally send me the LTE micro sim card and it works....
But one thing is don't expect to have LTE everywhere in Vancouver because as for now, I know I get LTE more in burnaby like near metro (but not in metro hahah...sometimes not always) and not a lot places in Richmond as for downtown not too sure because I went there 2-3 times only got H+ but I don't go there often.
At least i know LTE works which is the main point so I guess after all you have done, make make make sure your micro sim is LTE compatible.
P.S. for fido the LTE is included when I sign the contract so no charge to me for them to send me one but I'm not sure about rogers.
Hope this helps more or less.
et4891 said:
Just here to share my experience because I had a similar problem too.
I'm with fido carrier and got the razr hd with fido (in futureshop) which sucks.
Anyways long story short, same thing happened to me it kept on staying on H+ which I did speed test is only around 2-5 average...mostly 2max.
So I went in LOTS troubles finding out what's wrong and GUESS WHAT when I get the phone and the micro sim card with the sales HE SAID it IS LTE supported (because there are two different micro sim cards....one supports LTE and one doesn't)
Then I went through all troubles and finally had to talk to on of the representatives ONLINE and tell them to send me a LTE micro sim card.
For my fido sim card it does say LTE on it but don't trust the people you call you gotta force them to send you an LTE micro sim card because I called LOTS times to fido and some say on there should be LTE labelled on the micro sim and some say don't know and some say it shouldn't which pisses me off a lot until I did the ONLINE chat and they finally send me the LTE micro sim card and it works....
But one thing is don't expect to have LTE everywhere in Vancouver because as for now, I know I get LTE more in burnaby like near metro (but not in metro hahah...sometimes not always) and not a lot places in Richmond as for downtown not too sure because I went there 2-3 times only got H+ but I don't go there often.
At least i know LTE works which is the main point so I guess after all you have done, make make make sure your micro sim is LTE compatible.
P.S. for fido the LTE is included when I sign the contract so no charge to me for them to send me one but I'm not sure about rogers.
Hope this helps more or less.
Click to expand...
Click to collapse
Hey everyone, thanks for all the responses. Just prior to reading this thread, i came to the same conclusion that this is sim related as I put my micro sim into my girlfriend's LTE phone, it can only go up to HSPAP. I realized that it must be sim based. I was cheap and just cut down my old sim, i assume my old one did not support LTE on Rogers. And with this response I am 80% sure this is the problem. I will go pay 10 buck and enjoy blazing LTE tomorrow!!!
Thanks all!!
dixieflatline76 said:
Hey everyone, thanks for all the responses. Just prior to reading this thread, i came to the same conclusion that this is sim related as I put my micro sim into my girlfriend's LTE phone, it can only go up to HSPAP. I realized that it must be sim based. I was cheap and just cut down my old sim, i assume my old one did not support LTE on Rogers. And with this response I am 80% sure this is the problem. I will go pay 10 buck and enjoy blazing LTE tomorrow!!!
Thanks all!!
Click to expand...
Click to collapse
Oh they just letting you know....which I didn't say because it was a super long story that's why I briefly said it....somehow DO check if your rogers micro sim card says LTE or not on it because what I left out and didn't easy earlier was that I went to buy a micro sim card at the store and I asked for micro sim card...and at last they still only give me a regular micro sim card that's why I kept on confused if it does say LTE on it and went online chat to complain what happened. So double triple make sure or if you know someone in rogers store then it'll be good too. Because after I got the fake LTE they kept on saying on maybe because the tower delay wait for a day or two some said and some said few hours but guess what! when fido mailed me the LTE card the LTE works RIGHT AWAY....so ya...find a way to make sure the card is LTE micro.

[Q] S3 HELP!!!

Ok all I'm a newbie here so don't hate on me please.
My problem is that I cannot receive MMS and have no data other than WIFI??
I just rooted a Galaxy S3 (Verizon) SCH-I535, 4.1.2, Build#JZ054K.I535VRBMA2.
I set up the phone GSM/UMTS and am using an AT&T sim card from my old phone (HTC Inspire), the sim card that was in my inspire was on of the large kind that did not fit the Galaxy so the guy at Best Buy had a little stapler looking thing that actually cut it to the right size?? I don't know if that has anything to do with my problem or not? I don't think so since I CAN use the phone for calls and text messages, but you guys are the pro's. UPDATE: I did go to AT&T and get the proper sim card.
I used ODIN 307 and a file named-root66_VZW_I535VRBMA2_nowipe.tar.md5, to root the phone. I installed APN Manager Pro and Titanium Backup, both paid apps. I made APN Manager a system app in Titanium Backup just like I have read in other forums.
I have tried to use my old HTC settings for the APN and various others I have found online, including NET10 but nothing seems to work! I still can't receive MMS or network data??
If anyone can help me to figure this out I would greatly appreciate your help!
Thanks in advance!!
That's not gonna work...
665natas said:
Ok all I'm a newbie here so don't hate on me please.
My problem is that I cannot receive MMS and have no data other than WIFI??
I just rooted a Galaxy S3 (Verizon) SCH-I535, 4.1.2, Build#JZ054K.I535VRBMA2.
I set up the phone GSM/UMTS and am using an AT&T sim card from my old phone (HTC Inspire), the sim card that was in my inspire was on of the large kind that did not fit the Galaxy so the guy at Best Buy had a little stapler looking thing that actually cut it to the right size?? I don't know if that has anything to do with my problem or not? I don't think so since I CAN use the phone for calls and text messages, but you guys are the pro's. UPDATE: I did go to AT&T and get the proper sim card.
I used ODIN 307 and a file named-root66_VZW_I535VRBMA2_nowipe.tar.md5, to root the phone. I installed APN Manager Pro and Titanium Backup, both paid apps. I made APN Manager a system app in Titanium Backup just like I have read in other forums.
I have tried to use my old HTC settings for the APN and various others I have found online, including NET10 but nothing seems to work! I still can't receive MMS or network data??
If anyone can help me to figure this out I would greatly appreciate your help!
Thanks in advance!!
Click to expand...
Click to collapse
You're attempting to use an AT&T sim card in a Verizon device. Setting the device to use GSM/UMTS instead of CDMA/LTE while using an AT&T sim card that has been modified to fit a Verizon slot still wont work... it's still a Verizon device. AT&T and Verizon may both use the same frequency bands of 850 MHz and 1900 MHz for 3G, and 700 MHz for LTE, but their commonality ends there. To my knowledge you can't get what you're trying to do here to work. Even if you could get it to work, it would likely not be an easy task.
If you want your Verizon SCH-I535 to work, you'll need to use a Verizon sim card with an active Verizon Wireless plan.
Sorry to be the bearer of bad news man... but its not gonna work.
EatheMeek said:
You're attempting to use an AT&T sim card in a Verizon device. Setting the device to use GSM/UMTS instead of CDMA/LTE while using an AT&T sim card that has been modified to fit a Verizon slot still wont work... it's still a Verizon device. AT&T and Verizon may both use the same frequency bands of 850 MHz and 1900 MHz for 3G, and 700 MHz for LTE, but their commonality ends there. To my knowledge you can't get what you're trying to do here to work. Even if you could get it to work, it would likely not be an easy task.
If you want your Verizon SCH-I535 to work, you'll need to use a Verizon sim card with an active Verizon Wireless plan.
Sorry to be the bearer of bad news man... but its not gonna work.
Click to expand...
Click to collapse
Actually I did get it to work....somewhat. I downloaded the app HiAPN Global for the play store, made it a system app and viola! I now have data and MMS, HOWEVER it is not good by any means. All of my MMS come across as group messages and the data is EDGE at best.
I am wondering if I need to flash a new ROM and recovery....bootloader?? I'm kinda lost with all the information out there but cant seem to find my exact situation.
665natas said:
Actually I did get it to work....somewhat. I downloaded the app HiAPN Global for the play store, made it a system app and viola! I now have data and MMS, HOWEVER it is not good by any means. All of my MMS come across as group messages and the data is EDGE at best.
I am wondering if I need to flash a new ROM and recovery....bootloader?? I'm kinda lost with all the information out there but cant seem to find my exact situation.
Click to expand...
Click to collapse
You will only get EDGE. i used to use at&t Sim in Verizon S3.
The way I got data to worm was flash CM10 stable FROM AT&T Version (i747) to the Verizon version (i535)
That doesn't mean ALL roms will work like that. You don't have to believe me that it worked as some people will say "You can't flash a att ROM on a Verizon phone".
Some Roms have MULTICARIER support. Try one of those. But again, you will not get any speeds faster than EDGE. Verizon has those bands locked for US carriers, but there unlocked for over seas. (Weird huh)
Edit: IM NOT TELLING YOU TO GO FLASH A AT&T SLECIFIC ROM. ALL IM SAYING IS I USED A AT&T VERSION OF CYANOGENMOD TO GET MY DATA WORKING.

[CLOSED][Q] Unlocked Relay getting no signal on a non-TMo carrier

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.
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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.
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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
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Where did you buy the phone from?
gtmaster303 said:
Where did you buy the phone from?
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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
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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.
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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
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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

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