Database Users

[URGENT] X1 can't find T-mobile signal

I have used my x1 for four months in America with T-mobile. The phone had no problem until yesterday. However, yesterday, the phone began to lose signal and automatically rebooted several times. Then, finally, from the afternoon, the phone totally lost the signal, and kept looking the signal.
I took out my sim card and plugged into another cell phone and it worked. So, I thought it was the problem of the rom. (I was using Touch-IT 4.5) I downloaded the new version of the rom, Touch-IT 5.6, then flashed it. However, it did not solve the problem. So, I flashed with the original SE rom. However, the phone didn't work either.
I contacted T-mobile, and there was not problem on the signal on my region. I thought it might the problem of data plan since I do not use data plan. So I used Advanced config and killed every option for data plan. However, it still does not work. I tried to do settings manually. changing band, carrier, and every possible options, but it does not work.
Interestingly, the phone worked two times today for a short amount of the time. However, after the reset, it is gone. Other than phone function, I do not see any problem.
Even now the phone keeps searching the signal. What can I do? I read another article that is similar to my case, and they say even after changing the sim card, it does not work.
Anyone has the same issue? What can I do? My phone is dead for two days, and it messes up so many things. Please somebody help me.

Have you tried redoing the connection setup?

try clicking on signal antenna then enter settings click on network and manual select your network, will take a few mins to find networks if it connects manualy just select auto again and hopefully it will fix it., worked with mine.

Thank you guys
Thank you guys. Yes, I have tried both of them, but it still does not work.
In Connection setup, I chose United States and T-mobile, and the screen to choose between T-mobile and At&t. I select T-mobile, and click Register. Then, it goes to the searching mode again, and nothing happens.
I assume that somehow, the phone finds networks, since it does show the options to choose (T-mobile, At&t). But something is not right, and it messes the set up. I do not know why.

Troubleshooting Loss of data/wifi with sim swapping.

Hey guys,
So I’m having a bit of a dilemma. Here's my situation, my Xoom had been updated to 4G already. My issue is that I can't diagnose when exactly a loss of data connectivity occurs when swapping sims with my Thunderbolt.
Here is what I’ve found so far.
-Upon receipt of Xoom back from Moto I,
1. Flashed recovery-Tiamat-R4c-100611-1150-cwm.img
2. Flashed Universal root method.
No problems with Wifi or Data until I attempted to swap Sim card with my Thunderbolt. Then complete loss of data and WiFi. I tried restarting and removing sim, Power cycling with Vol-up/Pwer with no results.
-From here I hard reset back to stock.
I then Reflashed recovery-Tiamat-R4c-100611-1150-cwm.img.
Root was still intact so I flashed Android Honeycomb 3.2.2 - Stock & Rooted, which put me at HLK42B. I had 3g/4g however no WiFi. At this point I tried sim swapping without powering down and after a force restart was successful in using the TB sim card. My Verizon updated to my unlimited plan and all on the Xoom home screen.
I however decided to try and fix WiFi so I without wiping flashed HLK42C provided by SemperAndroid. This restored all WiFi connectivity and 3g/4g remained intact. I also flashed the "Tachi" kernel and OC'd to 1.4. I experienced no outages of data all last night and today.
However this afternoon I attempted to swap my sim card and after a forced restart was met with no data connectivity but working WiFi. I power cycled several times with no result. I then powered down and pulled the sim, put in the Xoom sim and restarted with no results. However after approx 3-4 times of powering down and pulling the sim I received about 20 seconds of 1x connectivity and then a short while later I noticed I had 3g showing but when I went to connect to browser it disconnected and I received a page couldn’t be loaded.
I also tried to restore a backup I had to HLK42B but it did not restore any data.
So it appears that so far we can only swap sims successfully on HLK42B however we lose WiFi connectivity as a result. Anyone have any other findings to share?
Thanks for your time..
Dave

Update:
Alright some more trial and error. I'm can't completely confirm it yet but so far it really seems that the manner in which you swap the sim card is what might cause the loss of data.
Last night I reverted to a backup of HLK42B which didn't initially store data but after troubleshooting a few times I learned that putting the settings into CDMA only and restarting seemed to reattempt the activation to the network.
Anyways, after getting back data, I decided to swap in my TB sim again. This time I pulled the tray out waited about 15 seconds for the "Please insert sim card" popup and plugged my TB sim back in then restarted via the popup.
Viola, 4g connectivity, I had lost root due to restoring my backup of HLK42B so I flashed recovery and universal root and data checked ok. I then flashed HLK42C over HLK42B and still retained data while on the TB sim. Backed up and flashed Tachi kernel and still maintained data. I then pulled the sim tray in the same manner allowing 15 seconds or so and reinserted the Xoom sim and restarted via the popup. Again no issues with data connectivity.
My only issue I can see was the manner in which I pulled the sim card out initially yesterday. In an attempt to trick the system I pulled the Xoom sim and immediately popped in the TB sim without allowing the device to popup with the notification of "No sim card inserted" After that I experienced the loss of data..
Again these aren't backed up with any technically "real" proof, just trial and error.. If anyone has anything else to share please let me know..
Dave

You just picked the wrong time to swap cards. VZW was having connectivity problems yesterday.
Sent from my Xoom using Tapatalk

[Q] Unlocked G2 on emergency calls mode only.

Hi all,
This is my case with the hope of getting any help or lead in order to solve my problem:
After a long research I bought an brand new LG D800 already sim unlocked in the US and brought it to my country (Costa Rica). I made sure the frequencies supported by the D800 are the ones used in my country. In fact 2 years ago I bought another phone that uses same frequencies and had had no problems ever.
As soon as getting in my country I placed the SIM card I'm using in my current phone into the G2 and it recognized the signal and connected to the operators network. I started to make and receive calls almost immediately, and also SMS' without issues. So I started to migrate all my data from the current phone into the G2. I used Titanium Backup for this, so I rooted first the phone using the guide I found here, and basically what I did is installed the apps from Google Play and then restored data using Titanium.
After the second day of use suddenly I found out that I wasn't able to make or receive calls since the phone lost connection to the operators network only allowing emergency calls but the signal bars were full (see scren capture). Sometimes when restarting the phone I get "Phone not allowed MM6" message just after the phone tries to connect to the operators network.
Went to the phone company offices and they tried to help me and made some simple tests, without changing anything inside, such as checking Android's network configurations, checking in their system to verify the IMEI wasn't blocked or reported (the IMEI is clean), also checked the sim configuration and after more than 45 minutes they were not able to find anything wrong in their system or with the phone itself. They also made a final test taking a working sim and put it into the G2 and gatting same emergency calls mode, and took my sim from the G2 and put it in another phone and that phone was able to make and receive calls. So they concluded that the phone has a "built-in" configuration or damage that impedes the phone to connect to the network. They finally suggested to ask the seller to apply the waranty, which is not a viable option since I'm not in the US anymore. This G2 is using the stock ROM (see screen captured).
I've been in close contact with the seller, and he had shown interest in this case but unfortunately hasn't been able to provide much support or help to solve the issue. He reports that he has contacted other buyers of this same phone, also sim unlocked by him, and they all are using their G2s normally. Didn't provide where their locations are tough.
My own conclusions here are that the G2 IMEI is not blocked by the phone company, that there is some kind of fault in the phone that when trying to connect to the network, the network doesn't "like" and rejects connection, althought it worked at the begining, and I'm not able to determine if the fault is software or it's in the hardware of the phone.
So I'm trying to understand what my options are at this moment:
Try to return the phone to the seller, or ask an LG representative in my country to change the unit. Which seems to be very difficult.
Reflash the unit with a stock ROM and reestablish the warranty. But being unsure if this will solve the issue.
Reflash the unit with a new ROM and loose the warranty, and again, being unsure the issue will be solved.
I'm really frustrated and at this moment and have no idea on what to do.
Any ideas or insight will be appreciated.
Thanks.
NOTE: I reinitialized the unit and lost any signal (see screenshots) but received update notifications from Google Play and was able to upload the screenshots into my Dropbox although no signal is shown in the status bar and no WiFi connection is established, only data connection thru APN (I Assume).

Go into status, what's IMEI say?
Sounds like EFS issues. I take it you didn't back it up after setting up on carrier and flashing?
Of so, you have some manual work to do with diag mode and a couple apps via pc.

Hi Steamer;
Under status I see 3 items:
1) Phone Number: shows"Unknown".
2) IMEI: shows the number printed on the box, on a sticker on phone's back.
3) IMEI SV: shows"03".
Where can I learn more about EFS issues? Are there tutorials?
As you say I haven't done any backup thing.
Sent from my LG-D800 using xda app-developers app

Steamer86 said:
Go into status, what's IMEI say?
Sounds like EFS issues. I take it you didn't back it up after setting up on carrier and flashing?
Of so, you have some manual work to do with diag mode and a couple apps via pc.
Click to expand...
Click to collapse
Hi again Steamer:
After reading quite a bit about EFS issues now I understand much better what you meant with your post.
And as you said I didn't back up efs folder, I even didn't flash any ROM yet in the unit. The only thing I did was a 'hard reset' to the unit using the Power + Vol. Down method, after having several 'com.android.phone' errors due to backing up data from Titanium.
The phone went to factory state, I put the sim card and everything went back to normal again, meaning that I was able to make and receive calls. Like 4 hours later the phone went to emergency calls only mode, and from then on I'm not able to take it out of that mode.
So I wonder if the efs folder could corrupt after that factory reset. Is it possible?
Thanks again and any light is greatly appreciated.

It is not in its own partition on this device, but in system. A hard reset shouldn't have caused corruption, but it is not impossible. Your IMEI is intact then, that is good. From what you said about it working partially, your EFS is most likely fine as well. There is a thread here to get files with custom recovery zip file, or you can use adb commands to do it yourself. I don't have guides off hand, but Google is your friend, just specified this phone in searches. Try a new SIM. Sounds more like SIM /carrier issue now as you are out of "activation". That is why emergency is popped and unknown number. The SIM itself may and most likely is bad(or carrier has an issue with your account), in turn it can't communicate with the server causing non activation on network search. Priority to SIM.

franz_cr said:
Hi again Steamer:
After reading quite a bit about EFS issues now I understand much better what you meant with your post.
And as you said I didn't back up efs folder, I even didn't flash any ROM yet in the unit. The only thing I did was a 'hard reset' to the unit using the Power + Vol. Down method, after having several 'com.android.phone' errors due to backing up data from Titanium.
The phone went to factory state, I put the sim card and everything went back to normal again, meaning that I was able to make and receive calls. Like 4 hours later the phone went to emergency calls only mode, and from then on I'm not able to take it out of that mode.
So I wonder if the efs folder could corrupt after that factory reset. Is it possible?
Thanks again and any light is greatly appreciated.
Click to expand...
Click to collapse
Hi i have similar issue with my LG G4 H818P dual sim... after factory reset i often face emergency calls only issue despite full signals... sometimes i able to make and receive calls but most of the time despite my sim registered on network and i get full signals when someone tries to call me he get message as my cell is off.... really annoyed and i flashed latest rom v10e but same issue. Same sim when i use in note 3 then no issue what so ever
Sent from my SM-N9005 using XDA Free mobile app

I had the same issues. Bought in Us using now in India. Go to settings..tethering&networks.. mobile networks... international data roaming and select standard data. Switch off and switch on your phone .
This will happen when you use, internet over gsm. If you disable internet or if your phone loses signal while switching between edge and 3g/4g data, this is tend to happen.

Similar Problem
I have an lg vs980 and I was using it with H2O wireless and later I changed to Simple Mobile. I'm living in Puerto Rico. The phone was working all right and, suddenly, one day it was always displaying 'emergency calls only'.
I did factory reset, then I reflashed stock lollipop and it was like nothing happened, keeps displaying 'emergency calls only'.
Then I found this post http://forum.xda-developers.com/show....php?t=2394689 and applied the patch but didn't seem to resolve the problem.
As a last resort I tried flashing cm 12.1 and before first boot applied the patch from the cited thread but no result, keeps displaying 'emergency calls only'.
Has anyone found a solution to this problem?

No 3G signal at all, but not quite the same

Hello, first to say, im not a newb, noob, newly registered, or a guy who dont understand anything from android.
Im not posting stupid topics, or topics which answers can be found easily on internet/google/xda/forums and such.
I am running stock rom, only rooted (i used to root it only to apply some xposed settings and clear some unnessesary apps, nothing more, nothing less).
Here is the description:
My phone has no warranty, i bought it online, brand new from UK, simfree. At that point, i had no problems with the connection. i received OTA Update - about 50-60 mb, but the phone remain 4.2.2 as it was. I still had no problems with the connection. After some time, the phone was left alone inhome for a few days, may be a week, it was turned off and it was not used at all. When i got back, i inserted my sim card, and i saw it is showing only G icon, and no 3g/h/h+, nor even 2g. I live in big city with very good network coverage, so its not network problem. I dialed up the customer service (Globul Telenor Bulgaria) , explained them my problem and asked them to check if its operator's problem or sim card problem, but it is not. The sim is fine, so is the network coverage. I dont have other operator's sim card to check the phone. I tryed several possible solutions found in google/xda - turned off the phone, removed sim and battery and left that way for few hours, still have the problem, tryed to switch operators manually and register sim card to other operator then back to mine, not working. Several times reseting/ deleting APNs, switching airplane mode, data off/on, adding apns/searching for networks and all available combos, not working asked Globul Customer support to send me new settings- not working. The only obvious thing i havent tryed is the factory reset (I still need to do a backup first and dont have time to do it right now.)
In Settings- More networks - Mobile networks- Network mode i have 2 options - 2g/3g auto connect and 3g Only. When I choose only 3g - i lose any signal, like there is no sim card. Reverting back to auto 2g/3g is registering my sim back to Globul network.
Then i decided to root my phone if i can find a fix for the connection. Rooted with CF-Auto-Root thru Odin. (The 30sec Root)
Looked for some tweaks in xposed modules and settings, i couldnt find anything related to 3g. Still looking for a solution...
I repeat - my phone was completely stock and non-rooted when the problem occurs! Now is rooted with stock rom. (this is the diffirent from every topic i searched.)
Im attaching some screenshots, if someone can help me. 2g is really annoying and slow as hell.

Well the first thing I would do is update your phone. You are running 4.2.2 which is old. Update to the latest version, that could either be a stock rom or a custom rom.
After that do a factory reset. Make sure you backup your internal storage etc, because it will wipe it clean.

Factory reset, updated to 4,3, after that 4.4.2 problem still persists.
No 3g at all. Its not the sim. Any way to fix it ?

Soo no way to fix it? Should i give it for repair?
Sent from my GT-I9505 using XDA Free mobile app

Wifi calling not working on G955N (Korean S8+)

Hello all,
Got my G955N in my hands. Followed the threads here to get TWRP installed, used it to install Batman ROM, then used TWRP to flash the AT&T CSC as my provider is AT&T.
In my pull down menu I do have the option for WIFI calling, however whenever I hit it, it fails (seems I can't post pics, so here is the text I get: "Loading, this may take a few moments" then it blinks a few seconds in and repeats. Then it goes to "Please try to set up WIFI calling again later."
I know it's an issue with my phone specifically because my wife's AT&T iPhone7 has WIFI calling working fine (not an ISP issue at home) and I swapped her SIM into my phone and I still got the same error. So it's something with the phone and not likely an account level issue (although maybe? Who knows at this point?)
Also, when I enter the testing menu, I see that "Data Service: Disconnected" which I'm not sure is right? Also, VOLTE Provisioned is not selected, however each time I do select it, it immediately goes back to deselected the moment I navigate away from the testing menu. I can reselect it all day and it still goes back to deselected the moment I move out of the screen.
I've read until my eyes bleed and tried just about everything I could find to try and no joy.
Any ideas?
P.S. got pics if anyone wants me to email them to you for clarity. Guess I'm too new here to be allowed to post pics

To follow up:
Turns out it was an account based issue. Seems AT&T tries to verify the IMEI when attempting to use Wifi calling. So unless registered in the network, it isn't going to work.
And the kicker is, AT&T won't allow Wifi calling or other services with any phone they didn't sell. You can toss in your SIM and use calling, but they won't activate other features if you try to bring your own phone.
So I spent yesterday switching to T-mobile and am now fully functional with all the features of my phone working as they should. AT&T lost me as a customer.