Develop Bugs

in desperate help unregistered sim

So i was playing around with my gio going through service menu I played with some options (like a dummy) now my phone is showing unregistered sim. It's a Bell Canada phone. When i put in a Virgin mobile the sister company of Bell it shows Virgin on the top right. Any help please. Does anyone have the default NV for this phone? Please and thanks.

have you tried a factory reset or flashing a ROM? i am pretty sure that will reset the services values to default

Locthe said:
have you tried a factory reset or flashing a ROM? i am pretty sure that will reset the services values to default
Click to expand...
Click to collapse
I flashed the stock rom using odin. Still showing the same unregistered sim. It also switches to extended network with the bell sim. At one point it showed Rogers.

Update i rooted the phone added galaxy ace unlock. It gave me a code i entered it it says successful. So i pop in my fido card it works. When i put back in the Bell sim still says unregistered sim. I put back in my fido sim and went in to service mode and noticed while playing with the bands it would throw my phone to unregistered sim. I had to leave it on gsm 850/1900 for it to work. Can this be the problem with the bell card? I tried playing with the bands while the bell card was in and still didn't catch reception.

Masaker514 said:
Update i rooted the phone added galaxy ace unlock. It gave me a code i entered it it says successful. So i pop in my fido card it works. When i put back in the Bell sim still says unregistered sim. I put back in my fido sim and went in to service mode and noticed while playing with the bands it would throw my phone to unregistered sim. I had to leave it on gsm 850/1900 for it to work. Can this be the problem with the bell card? I tried playing with the bands while the bell card was in and still didn't catch reception.
Click to expand...
Click to collapse
I don t think that its possible to change some GSM frequency settings for specific providers. So it should be a sim problem. Go to your provider and request a new SIM card. Its an easy thing to do they just use a small machine that copies the date from one sim to another. Also i think its free

Locthe said:
I don t think that its possible to change some GSM frequency settings for specific providers. So it should be a sim problem. Go to your provider and request a new SIM card. Its an easy thing to do they just use a small machine that copies the date from one sim to another. Also i think its free
Click to expand...
Click to collapse
Haha free? No 5$ every sim and I just got 2 new ones. Bell doesn't want nothing to do with this problem. I contacted Samsung service and they will fix the phone for free.... If it's actually the problem.
Also own a blackberry unlocked and the bell sim wont work in there eaither but the fido one does.
Sent from my SGH-I337M using Tapatalk 4

So its a SIM problem not a device specific one. Since it works on both devices. You should let Bell know about that. Good luck on fixing your phone, if there is something you can take care of please reply here with the solution so others can fix it too

Locthe said:
So its a SIM problem not a device specific one. Since it works on both devices. You should let Bell know about that. Good luck on fixing your phone, if there is something you can take care of please reply here with the solution so others can fix it too
Click to expand...
Click to collapse
Actually it's a phone problem my blackberry was a T-mobile phone and it reads my fido chip because it's supports the bands. My friend came with her Bell blackberry and it's reading the sim. I had service and made phone calls. Last night i played in the service mode i checked on my s4 all the settings in network control setting them the same way as what the s4 was but for HSPA. I did nv rebuild and my phone showed bell for like 1 minute then dropped to unregistered sim. I downloaded an app called G-Mon and my phone was reading Evdo it should be umts. So i played some more and it showed umts. Now i'm trying to get it on the bell network but it shows 302760 which is EXT (Extended) Please if anyone can give me the default settings in service mode i'd really appreciate it. Remember it's a bell phone so it's Wcdma.

Current CH: 0
Set Downlink CH, Input?
0: Reset
Set CH Range :10562-10842
Set CH Range :9662-9938
Set CH Range :2937-3088
That's what my phone shows. Is that normal?

Masaker514 said:
So i was playing around with my gio going through service menu I played with some options (like a dummy) now my phone is showing unregistered sim. It's a Bell Canada phone. When i put in a Virgin mobile the sister company of Bell it shows Virgin on the top right. Any help please. Does anyone have the default NV for this phone? Please and thanks.
Click to expand...
Click to collapse
are you using a different sim? my gio is from bell too and i pay for the unlock code here in phillipines

badagila said:
are you using a different sim? my gio is from bell too and i pay for the unlock code here in phillipines
Click to expand...
Click to collapse
If i use my Bell sim it reads unregistered sim.if i use my fido one the phone works. I tried using efs professional to make an efs backup from there delete the nvdata.bin file but i can't access it. I also tried using the app gsii_repair but it doesn't work on the gt-s5660m. I need to just set my nv to default but there is no option for it like my S4 has. Now the phone is just reading gsm bands even if i set the band selection to automatic. The problem is deeper than that.

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If that helps any
Sent from my SGH-I337M using Tapatalk 4

Masaker514 said:
If that helps any
Sent from my SGH-I337M using Tapatalk 4
Click to expand...
Click to collapse
have you tried changing the APN? go to settings - wireless - APN and check if phone locates any providers. click one if it does. if it does not check this:
http://forum.xda-developers.com/showpost.php?p=17148825&postcount=334
its a guide to unlock gio. that might be your problem.

The apn is there
Sent from my SGH-I337M using Tapatalk 4

Also I got my unlock code I used the unlock galaxy ace app and it worked. I have a copy of that file on my computer though I will upload it if someone wants to look at it cuz I don't understand it at all. I also downloaded a bm5? Stock image but don't know how to flash it through odin3
Sent from my SGH-I337M using Tapatalk 4

Masaker514 said:
Also I got my unlock code I used the unlock galaxy ace app and it worked. I have a copy of that file on my computer though I will upload it if someone wants to look at it cuz I don't understand it at all. I also downloaded a bm5? Stock image but don't know how to flash it through odin3
Sent from my SGH-I337M using Tapatalk 4
Click to expand...
Click to collapse
upload it somewhere and drop me a link. I ll take a look at it and get back to you

here's the file maybe other people can help out?
http://www.mediafire.com/download/6vy6bypt229skkz/masaker-gio.rar

And now its connected to EXT
Sent from my SGH-I337M using Tapatalk 4

You cam do 2 things:1. Go to a GSM store and unlock your phobe
2. Get it to Samsung Service
Sent from my GT-I9100 using XDA Premium 4 mobile app
---------- Post added at 10:42 AM ---------- Previous post was at 10:41 AM ----------
Locthe said:
upload it somewhere and drop me a link. I ll take a look at it and get back to you
Click to expand...
Click to collapse
Flash Gio items through Odin4
Sent from my GT-I9100 using XDA Premium 4 mobile app

sim unregistered answer
Your mobile is work with fido sim and not working with bell sim. So there are two possibility either your mobile is locked with fido sim or your bell sim is not working.
Try to use bell sim on another unlocked mobile if your bell sim not working with other mobile then it is problem with your sim and if that sim working with other mobile then your mobile is locked with fido sim.

N910V No signal in Argentina

Hello everyone,
I bought a Unlocked Note 4 from Verizon in USA. In Argentina I don't have signal. We use GSM so it should work right. I know this device has not root access. I just want to make some calls or messages.
It doesn't let me search network manually. It throws an error "error searching networks"
Android Version: 4.4.4
Network Mode: Global/GSM
Somebody could help me on this.
Thanks in advance.

fernandorado said:
Hello everyone,
I bought a Unlocked Note 4 from Verizon in USA. In Argentina I don't have signal. We use GSM so it should work right. I know this device has not root access. I just want to make some calls or messages.
It doesn't let me search network manually. It throws an error "error searching networks"
Android Version: 4.4.4
Network Mode: Global/GSM
Somebody could help me on this.
Thanks in advance.
Click to expand...
Click to collapse
I am in Europe past month, leaving to us in few days and was using my note4 in GSM mode all the time and switching between carriers on a prepaid sim. I would do factory reset or maybe get a new sim.
My prepaid sim allows roaming on all carriers.
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Sent from my SM-N910V using Tapatalk

I already flash the mobile with Odin thinking that the Android version might be the problem. It still not getting signal. I'll try with another SIM card.
Did you use others GSM carriers instead of T-Mobile?

fernandorado said:
I already flash the mobile with Odin thinking that the Android version might be the problem. It still not getting signal. I'll try with another SIM card.
Did you use others GSM carriers instead of T-Mobile?
Click to expand...
Click to collapse
Yes I roam on Plus Poland and Orange Poland with no issues.
Sent from my SM-N910V using Tapatalk

I tried with many SIMs, I flashed the device three times and I still having. So maybe there is a another issue. Please someone can help me. How is the Micro SIM should I use?

Which carrier are you using this on? Verizon has always used CDMA for 3G, not GSM. The Verizon Note 4 (SM-N910V) does seem to have limited GSM support, but it might not work on every GSM carrier.
This website seems to be pretty accurate: http://www.willmyphonework.net/

Acording to that page my phone should work perfectly
with 2G, 3G, 4G LTE.
I'm using:
Brand: Samsung
Model: SM-N910V
Country:Argentina
Carrier:Claro Argentina
I don't know what is the problem.:crying:

You may need to add new APN settings before it will work.
On mine, the option to add a new APN is disabled, but I'm actually using mine on Verizon with a Verizon SIM card, so I'd have no reason to edit the APN settings manually. Are you able to edit yours?

I already set the APN and nothing happens. I'm not sure APN could be the problem. Should be something else.

fernandorado said:
I'm not sure APN could be the problem.
Click to expand...
Click to collapse
If the APN settings aren't correct, it could absolutely be the problem. It's worth double checking.

APNs
I tried with severals APN and nothing happens.
-
-
I have an Oneplus One with the same APN and works perfectly. That's why I think the APNs are not causing the problems of signal. I still having no signal. I cant make neither a call nor send a message.

fernandorado said:
I tried with severals APN and nothing happens.
-
-
I have an Oneplus One with the same APN and works perfectly. That's why I think the APNs are not causing the problems of signal. I still having no signal. I cant make neither a call nor send a message.
Click to expand...
Click to collapse
what if you put it in GSM mode and then search for carrier and then try to register on it? that is how I Switch networks to roam on.

Select carriers
patt2k said:
what if you put it in GSM mode and then search for carrier and then try to register on it? that is how I Switch networks to roam on.
Click to expand...
Click to collapse
I did thit but the movile doesn't let me select networks to register on. I always get the error message "error while searching networks".

fernandorado said:
I did thit but the movile doesn't let me select networks to register on. I always get the error message "error while searching networks".
Click to expand...
Click to collapse
Hmm sorry bro not sure what is going on.. last thing I could suggest if you have some money to spare try any other sim card from different provider or ask a friend to swap it for a minute or two,anything to test that it's not your carrier somehow not wanting to work with VZW N4.

patt2k said:
Hmm sorry bro not sure what is going on.. last thing I could suggest if you have some money to spare try any other sim card from different provider or ask a friend to swap it for a minute or two,anything to test that it's not your carrier somehow not wanting to work with VZW N4.
Click to expand...
Click to collapse
I think this phone has the bands blocked. I do not know how to check this.

fernandorado said:
I think this phone has the bands blocked. I do not know how to check this.
Click to expand...
Click to collapse
Hey I read something couple days ago and forgot to get back at you.. I read somewhere if you block activation agent it should work some people on T-Mobile USA had the same issue. Use debloater to block activation agent on boot. They said this could be because the note could never been activated on Verizon even for 30 seconds and this is why it might be happening.
So block activation agent,and setup wizard so it's blocked on EACH BOOT.
Let me know

blindmanpb said:
If the APN settings aren't correct, it could absolutely be the problem. It's worth double checking.
Click to expand...
Click to collapse
I tried this but it did't work. I blocked everything from Verizon and I still without signal. :crying:

fernandorado said:
I tried this but it did't work. I blocked everything from Verizon and I still without signal. :crying:
Click to expand...
Click to collapse
Hmm I am running out of ideas bro. Is there any other provider you can try ?
Sent from my SM-N910V using Tapatalk

fernandorado said:
I tried this but it did't work. I blocked everything from Verizon and I still without signal. :crying:
Click to expand...
Click to collapse
Have u tried inserting dummy verizon sim?

I do not have any dummy sim from Verison.

Lte on unlocked sprint s6 edge+ on t-mobile

Does anyone know if I can get lte working or is it possible to do

Probably not

Unfortunately no, it's not possible.

Why would it not be possible? It does support some of t mobile bands.
Sent from my SM-G928P using Tapatalk

Lte band is different on tmobile gsm than on a sprint phones

I Am in same situation. It does not make sense if i go to ##data# i see bands 2,4,12 all LTE in priority list. It is there. How can we make it work?

Mine works on LTE, but signal is very unstable. Voicemail wont work unless switch back to 3G.

Just an update, I unlocked my phone. Connects to B2, B4, B12 no problem.
Sent from my SM-G928P using Tapatalk
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just proof
Sent from my SM-G928P using Tapatalk

Could you please tell us how did you manage to get B2 and B14 working? I checked mine with SignalCheck and it shows that i am on B4 LTE AWS.

fenge said:
Could you please tell us how did you manage to get B2 and B14 working? I checked mine with SignalCheck and it shows that i am on B4 LTE AWS.
Click to expand...
Click to collapse
That's t mobile fastest lte. It will default to that unless you go out of an area that doesn't have aws. Then it should pickup B2 and B12 when available.
Sent from my SM-G928P using Tapatalk

Thank you! My voicemail won't work unless I switch back to 3G, I should probably just stick with 3g.

fenge said:
Thank you! My voicemail won't work unless I switch back to 3G, I should probably just stick with 3g.
Click to expand...
Click to collapse
My voice-mail works fine.
Sent from my SM-G928P using Tapatalk

how do you unlock a phone

That's not proof that it's working. That's proof that the phone is seeing the LTE band. Mine sees it also but I can't actually connect to it. It clearly says unregistered on the screen shot on the top. When connected it says "sending & receiving" or active

littlebeeper said:
That's not proof that it's working. That's proof that the phone is seeing the LTE band. Mine sees it also but I can't actually connect to it. It clearly says unregistered on the screen shot on the top. When connected it says "sending & receiving" or active
Click to expand...
Click to collapse
Happy?
Sent from my SM-G928P using Tapatalk

That's proof. How you get that to connect. I'm on automatic and get only 3g and the APN setting gets blocked. If I go to setting through root and change to LTE/gsm auto prl. I get only 3g. The phone sees the same LTE band your on but it won't connect. Only time it did was when I was using activate phone but it would not show accurate signal meter and then reverted back to 3g when it failed to activate

Used my msl to get into data and added tmobile apn. Left it on automatic and it connects perfect. Only thing I noticed is when using the apn fast.t-mobile.com, is you have to put it in like this. fast.tmobile.com. works fine.
Sent from my SM-G928P using Tapatalk

When I go into ##data# with edit using msl I still can't add or edit APN. It's working right now. But it's on LTE/GSM auto prl in device I go using advanced signal status app, which shows up as LTE GSM UMTS In mobile networks>network mode Only thing is the signal meter is not reading accurate and I have to make a call every few hours to get LTE to connect again. Going to try automatic again. I upgraded to latest update yesterday

I'll have to check again. I'll let you know in the morning
Sent from my SM-G928P using Tapatalk

It works on tmobile
If you can get into GCF SETTING CHANGE NETWORK BANDS TO GSM/WCDMA/LTE. ONCE THAT'S DONE RESTART PHONE AND DIAL ##DATA# HIT EDIT ENTER YOUR MSL CODE.. NEXT HIT LTE THEN HIT LTE ROAMING MAKE SURE IT'S ENABLED.. PRESS BACK ON YOUR PHONE TO SAVE THE SETTINGS... NOW THE LAST THING YOU NEED TO DO IS MAKE SURE IN YOUR T-MOBILE APN SETTINGS BEARER IS SET TO LTE ONLY.. SAVE THE APN SETTINGS AND REBOOT PHONE AND BOOM YOU HAVE YOUR SPRINT UNLOCK EDGE PLUS WORKING ON T-MOBILE LTE.. RECEIVING AND SENDING MMS WON'T WORK UNTIL YOU UNDO ALL SETTINGS AND PUT BACK THE PHONE TO WORK ON 3G.

Pixel doesn't connect to data when roaming.

I am on T-Mobile and when I roam, my phone will connect to the network for phone calls and SMS, but will not connect to the data services. I have it turned on for data roaming in the settings. My wife's 6P is also on T-Mobile and connects to data just fine. Any ideas?
Sent from my Pixel XL using Tapatalk

kgeissler said:
I am on T-Mobile and when I roam, my phone will connect to the network for phone calls and SMS, but will not connect to the data services. I have it turned on for data roaming in the settings. My wife's 6P is also on T-Mobile and connects to data just fine. Any ideas?
Sent from my Pixel XL using Tapatalk
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See this screen shot.
Sent from my Pixel XL using Tapatalk

Check the APN on the 6P and compare to Pixel, are they the same?

clockcycle said:
Check the APN on the 6P and compare to Pixel, are they the same?
Click to expand...
Click to collapse
Yes.. Did that. They are both the same.
Sent from my Pixel XL using Tapatalk

kgeissler said:
Yes.. Did that. They are both the same.
Sent from my Pixel XL using Tapatalk
Click to expand...
Click to collapse
Have you tried to switch the sims between the devices?

I am noticing this same thing on T-Mobile with the Pixel after coming from the Nexus 6P. Did you ever get an answer to this?

There is an option to reset the cellular network in settings. I was roaming in South Korea for the last 3 weeks with the pixel xl and didnt have any issues. Roaming is set off by default.

Any update
Any update to this? I just discovered that I'm experiencing the same thing.

I have the same issue. I can put my SIM back in my Nexus 5x, roaming works. In my Pixel, it can call and text, but no data.

Does it work temporarely when you turn on and off the flightmode?

i have the same problem but it sometimes works temporarily when I manually switch to another network while roaming

Mine did the same, went into mobile network settings, network operators, search networks and then choose automatically. Also make sure data roaming is on.
The phone then started working for roaming, in one country I had to do this twice before it picked it up

Change the APN Protocol (not for roaming protocol) to IPV4/V6.
You could also go into the testing menu (dial *#*#4636#*#* - phone information) to global auto but I think that setting gets reset every now and then.

Was working on my first trip overseas two mons ago. Same location as before but now i
I am am also on T-Mobile. On my first trip to Nicaragua two months ago my pixel work fine. Now my phone will connect to the network for phone calls and SMS, but will not connect to the data services. I have it turned on for data roaming in the settings. My wife's S5 is also on T-Mobile and connects to data just fine. T-MOBILE reset me several times. I will get a message then from Claro or Movistar saying no data because your data roming is off. No matter if I have it switched to on or off after resting I will get the message everytime.

I was having this same issue in Thailand and not Japan. Changing to ipv4/v6 didn't help but explicitly changing to 3g preferred instead of LTE preferred fixed it for me

Posting this to add the list of things that may work..
I have a Pixel 2 and was having this same issue with a Twilio sim card (runs on T-Mobile) while in Australia, New Zealand, and later in Ireland (home network is USA). I had tried all kinds of random APN tweeks mentioned in this thread (https://forum.xda-developers.com/tmobile-lg-g3/help/international-data-roaming-to-t2823789) with no success. I had also contacted google and they sent me a whole new pixel 2 but that made no difference. After much googling heres what I found:
Edit the APN settings and click the APN Type. Add "default" to the beginning of that list. Try and save, it will tell you that you can't set the type to default, that's fine. Press the home button and re-navigate to the mobile settings and default should be successfully saved in the APN type. That alone resolved the data connection issues for me but I was only getting H internet rather than LTE. I then also changed the MVNO setting to `SPN` and suddenly got LTE connectivity.

G710PM apn locked/greyed out

Evening all.
Forgive new if this has been asked, but i wasn't able to find any results when searching.
Seems I've joined ranks off a duped eBay shopper. Ordered a G710ULM, turns out it was a G710PM..... "Issue with title" riiight. It's GSM unlocked for all GSM carriers, but the APN setting is locked. And fails to register. Seller is willing to refund, but if i can get into the APN settings and configure for cricket, I won't care if it's from Sprint.
Any solutions, or should i refund and look for a non-Sprint version?
Thanks.

Really what i am looking for is someone to confirm they have an unlocked G710PM phone, not just SIM unlocked, and are able to add the correct APN settings for their carrier.
Thanks

*#546368#*710#---Field Test---Modem Settings---PDP Setting---[5]APN Setting

Thanks I'll give that a shot and see what happens

Ussd code running.....connection problem or invalid mom code.

Using ##3282# gets me into some settings, but no service code, no edit. I'm guessing UICC unlock is not the same as being "unlocked". Any firmware or software changes when using an unlock service?

I have the same problem.
Just bought it. Seller showed me the phone with a Cricket SIM and it work on calls, text and data.
Manage to connect to MetroPCS network but just calls and texts.
APN settings are greyed out. No way to enter a new one.

I have the G710EM and while I can add new APNs, I can't get rid of the now obsolete one that the phone took from my SIM card when I first fired it up. I've had LG phones before and been able to delete unwanted APNs but with this one, the fields are all greyed out. Is this not the region lock, where you have to put in an European SIM on first use?

I have searched the internet high and low for a solution to this issue. and have gotten nowhere. I gave my sprint g7 unlocked to a friend who is using straight talk. calling texting and data work. but no LTE. this is the same for any phone i give her and all she has to do is change the APN and everything works flawlessly. unfortunately on this phone, it wont let her add or edit an APN. Does anyone have any kind of update on this?

I just purchased the LG G7 ThinQ model LG-G710PM for $164. Same issue with the APN being greyed-out. Won't fully work with my Consumer Cellular SIM (only for text and calls, but no data). I'm wondering if it will work if I change the carrier to T-Mobile?

Hi,
I created an account just to help out with this problem, go to google app store and install an app called AddAPN. when u do, open it, enter the required settings and save, then restart your phone n walllaaaaah,
You are all set to use your device
Let it be Christmas everywhere
Merry Christmas
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SwamiXXX said:
I just purchased the LG G7 ThinQ model LG-G710PM for $164. Same issue with the APN being greyed-out. Won't fully work with my Consumer Cellular SIM (only for text and calls, but no data). I'm wondering if it will work if I change the carrier to T-Mobile?
Click to expand...
Click to collapse
Just read my recent thread and you will be good

Blitzo_14 said:
Hi,
I created an account just to help out with this problem, go to google app store and install an app called AddAPN. when u do, open it, enter the required settings and save, then restart your phone n walllaaaaah,
You are all set to use your device
Let it be Christmas everywhere
Merry Christmas
View attachment 5166401
Click to expand...
Click to collapse
Holy cow! I've been through major hell with the APN issue for months now and no major carrier would support the G710PM according to the IMEI compatibility check. Thank you very much! Happy New Year!!! You've saved the day!

i got a solution for u

Blitzo_14 said:
i got a solution for u
Click to expand...
Click to collapse
The AddAPN worked after a few attempts when I finally entered/saved the specific APN info for my phone plan. I am now able to keep my great phone and my carrier. Imagine the complications I went through with the disabled APN screen and for months no tech person could tell me how to get around it. Now this bad-assed LG G7 ThinQ can access data! Thanks again!

u welcome

Blitzo_14 said:
Hi,
I created an account just to help out with this problem, go to google app store and install an app called AddAPN. when u do, open it, enter the required settings and save, then restart your phone n walllaaaaah,
You are all set to use your device
Let it be Christmas everywhere
Merry Christmas
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Guy you have really of great help to me thanks very much Happay New Year

Blitzo, thank you! Yesterday I transferred my PagePlus cell number from a Samsung Galaxy Note 8 to the Note 20 5G Ultra. I haven't been able to get around the "ungreying" the APN settings until now due to your help! I still don't have mobile data, but at least I am closer to the solution!!