Database Users

Phone has Randomly gone into NO SERVICE

my phone hasnt gotten any signal for the last 2 days. i dont know what happened, the phone just says NO SERVICE. I know its not my T-Mobile account since my sim card works perfectly on another phone. this phone has never been dropped, and its only about 3-4 wees old. It started when I was eating lunch in my school's cafeteria (which is underground) when i noticed i had no service and a "g" every once in a while (theres usually atleast 2 bars and always 3g since my school is downtown). i thought nothing of it since it was underground, but my signal never came back.
what should i do? i flashed the newest radio earlier and now i dont even get the "g" anymore.
it's running virtous 0.8.1 with S-OFF. i also tried my cyanogenmod backup but there was no difference.
im going to try to return everything back to stock and see if it works. did this happen to anyone else? if so how did you fix it?

does anyone have any information that could help?

Probably a long shot, but have you tried enabling and then disabling airplane mode?

Idk if this'll work, but hey its worth a try call *#*#4636#*#* and change your settings, it should restart your network. Hopefully.
Sent from my HTC Vision using Tapatalk

Did you test the SIM in another phone? Did you try enabling 2G networks only to determine if this is related to 3G/4G? Did you call tmo to see if there are network issues in your area?
What is your city location?
Sent from my T-Mobile G2 using XDA App

i have tried those things, when i do *#*#4636#*#*, it shows that i have a signal but it doesnt show on the status bar or that im connected to tmobile. when i go to select network in settings, it says my sim card wont allow me to connect to this network, which makes no sense since its a tmobile sim card and was working fine 2 days ago.
i live in Buffalo, NY. there is no network outage here since i tried my sim in another phone and it worked fine

buffalowings said:
i have tried those things, when i do *#*#4636#*#*, it shows that i have a signal but it doesnt show on the status bar or that im connected to tmobile. when i go to select network in settings, it says my sim card wont allow me to connect to this network, which makes no sense since its a tmobile sim card and was working fine 2 days ago.
i live in Buffalo, NY. there is no network outage here since i tried my sim in another phone and it worked fine
Click to expand...
Click to collapse
All bets are off until you restore the stock rom with OTA update. Post back once you've returned it to factory because tbh, nobody from T-Mobile can or will help you either if your phone is all jacked up.

buffalowings said:
i have tried those things, when i do *#*#4636#*#*, it shows that i have a signal but it doesnt show on the status bar or that im connected to tmobile. when i go to select network in settings, it says my sim card wont allow me to connect to this network, which makes no sense since its a tmobile sim card and was working fine 2 days ago.
i live in Buffalo, NY. there is no network outage here since i tried my sim in another phone and it worked fine
Click to expand...
Click to collapse
This is a network issue, its not your rom, no worries. When registration fails or network not allowed happens, tmo needs to send an engineer to the local towers to fix it up or file a trouble ticket. Is it happening within your home area, such as a 7 - 10 mile radius - or wider.
Take my word for it, you need to call
Sent from my T-Mobile G2 using XDA App

I have the same problem, and I'm in the LA area. Called, T-Mo and they said there werent any outages at the time.
Tried enable/disable airplane mode. no go.
Tried enabling only 2g mode. no go.
I don't have another phone with me to try my sim card in right now, so will try that later (T-mo rep said to use the new sim card).
I'm running stock on my g2. Will update when I get it fixed.

I'm having the same issues. went back to the stock ROM. went through several different ROMs still, the same.
Someone PLEASE help.

Sim card try another, seriously, happend to me once and a friend... went back to stock and everything.
G2 doesn't like sim cards....

Same thing happened to me. Card worked in my old G1 but not my G2...it was less than 30 days so they replaced it. This is worrying me though...I hope it's not a common issue that can just happen any time.

[Q] Need help with unlocked Verizon Trophy

I bought a Htc Verizon Trophy and had it factory unlocked by Verizon . Popped in my AT&T sim card and it only gets edge and not 3G . I performed several hard resets and entered the correct APN settings and still no 3G. T-mobile sim card works also but edge is expected. Voice and Internet work great but I was under the impression that it was dual mode and has the AT&T 3G radios and should work on 3G.
Any suggestions or pointers on getting the 3G working?
Thanks

Download "HTC Connection Setup" under the HTC apps in the Market. Select AT&T from the settings and it should help you out.
Also, make sure your AT&T area offers 3G coverage. In my area of Northwest PA, 3G coverage is almost none existent. Basically, if your sim allowed 3G on another phone before, it should be okay (or check AT&T coverage map).
Be careful, I used this program to set my Verizon settings and now I can't get data on Verizon anymore. . Guess that's what I get for playing around.

TheXev said:
Be careful, I used this program to set my Verizon settings and now I can't get data on Verizon anymore. . Guess that's what I get for playing around.
Click to expand...
Click to collapse
Did you restore your trophy to a backup from before you used HTC connection setup? I just did the interop unlock for my trophy as well and I cant get 3G data back. Im hoping restoring the phone to an old backup will fix the problem. Verizon better not have somehow blocked our phones from getting 3G!

[Q] Verizon S5 using straight talk att sim?

Hello all,
I bought a Verizon s5 on eBay for $250 the other day. From my reading other forums, I thought that I could just pop my straight talk sim in and it would work.
Apparently that is not the case.
After some reading, I used towel root and was able to get the hidden menus to work , but I really don't know what bands that I should try to enable?
I have a straight talk sim that is set up for an att phone (works perfectly in my S4).
Thus far the phone doesn't recognize my sim at all. It just has a circle where the signal indicator would be.
The phone arrived with a apalachian wireless sim installed and it gets full signal with that sim.
I checked the esn with swappa and it appears to be good.
Any insight would be great. I'm new to all of this and really don't know what I'm doing.

hphillips1 said:
Hello all,
I bought a Verizon s5 on eBay for $250 the other day. From my reading other forums, I thought that I could just pop my straight talk sim in and it would work.
Apparently that is not the case.
After some reading, I used towel root and was able to get the hidden menus to work , but I really don't know what bands that I should try to enable?
I have a straight talk sim that is set up for an att phone (works perfectly in my S4).
Thus far the phone doesn't recognize my sim at all. It just has a circle where the signal indicator would be.
The phone arrived with a apalachian wireless sim installed and it gets full signal with that sim.
I checked the esn with swappa and it appears to be good.
Any insight would be great. I'm new to all of this and really don't know what I'm doing.
Click to expand...
Click to collapse
What APN are you using?

I didnt bother changing the apn because it doesnt recognize my sim. It just has a circle where the signal indicator should be.

Global mode should work fine. The issue might have something to do with the Verizon system not recognizing the ST sim card. Even though the S5 is unlocked, you might have to call VZW to see if it's a privisioning issue. You can check ESN with them too because it could be bad. Good luck and post back if/when you fine the answer.

I am running the same exact setup. Works great for me. Including mms. U should have done a factory reset before rooting. Either way. ....make sure it's in global mode under settings more networks/ network mode. Then download using WiFi since u don't have data yet, straight talk data settings from Google play store. Hit home button open data settings, follow instructions. Good luck.

G935U firmware with Verizon MVNO

Hi guys,
I bought the unlocked firmware phone back in December 2016. The phone is great, the problem is I am using EcoMobile MVNO. It's refusing to recognize the network with the MVNO's sim card. I've spent hours on the phone with them and they claim all is OK on their (and Verizon's) end.
The phone sort of works, so I've just been grinning and bearing it so far. Using 4G switcher, I can put it in CDMA only mode, in which case it connects to '123456' and I can receive and make calls, and receive texts, but have no internet. If I put it in full LTE/GSM/CDMA auto mode, it connects to LTE, so I have internet, but it claims I'm not connected to Verizon network and in fact it's not available. So in this mode I can't receive calls or texts. Can't send texts under any mode. I've done a full factory reset at the MVNO's behest, of course that did nothing. The phone seems to connect fine to Verizon's network if I borrow someone elses's Verizon sim. My MVNO sim also works in my wife's iPhone5 without a problem. So it really seems to come down to the firmware on the phone. I'm holding out against hope that when Nougat comes to the G935U firmware, this problem is magically solved... but just in case decided to post here.
Please help, any ideas would be appreciated.
-Frustrated G7E user

galaxy7user said:
Hi guys,
I bought the unlocked firmware phone back in December 2016. The phone is great, the problem is I am using EcoMobile MVNO. It's refusing to recognize the network with the MVNO's sim card. I've spent hours on the phone with them and they claim all is OK on their (and Verizon's) end.
The phone sort of works, so I've just been grinning and bearing it so far. Using 4G switcher, I can put it in CDMA only mode, in which case it connects to '123456' and I can receive and make calls, and receive texts, but have no internet. If I put it in full LTE/GSM/CDMA auto mode, it connects to LTE, so I have internet, but it claims I'm not connected to Verizon network and in fact it's not available. So in this mode I can't receive calls or texts. Can't send texts under any mode. I've done a full factory reset at the MVNO's behest, of course that did nothing. The phone seems to connect fine to Verizon's network if I borrow someone elses's Verizon sim. My MVNO sim also works in my wife's iPhone5 without a problem. So it really seems to come down to the firmware on the phone. I'm holding out against hope that when Nougat comes to the G935U firmware, this problem is magically solved... but just in case decided to post here.
Please help, any ideas would be appreciated.
-Frustrated G7E user
Click to expand...
Click to collapse
Flash the vzw firmware or go through the steps for the hybrid rom with vzw modems implemented.

Thanks. I was really hoping for something less intrusive, maybe some CSC edit fix, or some such.

galaxy7user said:
Thanks. I was really hoping for something less intrusive, maybe some CSC edit fix, or some such.
Click to expand...
Click to collapse
Welp, the 7.0 update is here, and it didn't fix my issue, in fact now I can't even get LTE data as I used to get. :crying:

So I had this issue when I first got the nougat update. When I got my S7 I put in my brothers sim card to made sure it worked on Verizon cause i was buying it from someome and anyway I activated my straight talk verizon SIM and everything was great until I got the update and my service was weird and I didn't know what to do and then it dawned on me, I put in an actual verizon SIM card, doesn't need to be active let it register and then put your SIM back in and everything was great! Hope this helps...

Switched to TotalWireless, phone works now. They first sent me a SIM which didn't work, then had to send a different, post-paid one.
I now suspect if ECO also sent me a postpaid based SIM it would start working. Things are always way too complicated when Verizon is involved.

S7 U with Verizon MVNO
skater95 said:
So I had this issue when I first got the nougat update. When I got my S7 I put in my brothers sim card to made sure it worked on Verizon cause i was buying it from someome and anyway I activated my straight talk verizon SIM and everything was great until I got the update and my service was weird and I didn't know what to do and then it dawned on me, I put in an actual verizon SIM card, doesn't need to be active let it register and then put your SIM back in and everything was great! Hope this helps...
Click to expand...
Click to collapse
I'm tempted to try this as I'm having the same problem with my 935U and Xfinity Mobile (Verizon MVNO) SIM, instead of connecting to the Verizon network, it connects to network 123456. I did load the 935V firmware, which worked fine, but I'd prefer to return to the U firmware if this would work. Is this still working for you, and if so, do you just need to put the regular verizon sim in once and from then on the MVNO sim will work, and continue to work including after a reboot?

ralrdz said:
I'm tempted to try this as I'm having the same problem with my 935U and Xfinity Mobile (Verizon MVNO) SIM, instead of connecting to the Verizon network, it connects to network 123456. I did load the 935V firmware, which worked fine, but I'd prefer to return to the U firmware if this would work. Is this still working for you, and if so, do you just need to put the regular verizon sim in once and from then on the MVNO sim will work, and continue to work including after a reboot?
Click to expand...
Click to collapse
I put in a Verizon SIM in it once and that was after the nougat update. But every time the phone restarts, I have to make a phone call for it to connect to the service or it will just stay stuck in "searching for service" but once the phone call connects, I hang up and everything works as it should.

skater95 said:
I put in a Verizon SIM in it once and that was after the nougat update. But every time the phone restarts, I have to make a phone call for it to connect to the service or it will just stay stuck in "searching for service" but once the phone call connects, I hang up and everything works as it should.
Click to expand...
Click to collapse
Thanks, strange problem. I'll probably just stick with the 935V firmware for now as that's working fine (just have the Verizon bloat and failing the hotspot check). I also have a dialog going with Samsung support to see if they're aware of the problem and have a fix.

No Data Connectivity SM-G935A

I bought a used unlocked AT&T S7 Edge, and I'm having trouble with data connectivity. The status bar shows signal and the 4G LTE symbol, however I'm not receiving any data. Calls and texts work fine.
I went through the troubleshooting checklist from T-Mobile with no luck until I factory reset my phone. Once I did that I was able to use my data for two days before it went out again. I also tried taking out my SIM and putting it back in.
Anyone know if there is any sort of fix for this problem?

Jaybeann said:
I bought a used unlocked AT&T S7 Edge, and I'm having trouble with data connectivity. The status bar shows signal and the 4G LTE symbol, however I'm not receiving any data. Calls and texts work fine.
I went through the troubleshooting checklist from T-Mobile with no luck until I factory reset my phone. Once I did that I was able to use my data for two days before it went out again. I also tried taking out my SIM and putting it back in.
Anyone know if there is any sort of fix for this problem?
Click to expand...
Click to collapse
Have you tried changing the APN settings? Try searching for "T-Mobile APN settings Galaxy S7" since I can not send the link.