Whenever I go to underground parking or roam, then phone will sometimes never get connected again - just saying "emergency calls only" in the display instead of operator name. I can get connected to the network again by doing airplane mode on/off, but this is a huge hassle as it can take hours for me discover that the phone has went into its not wanting to reconnect to network mode.
This was first day out the the box, nothing done with the phone. Tried recover to factory reset, same issue still. Is the phone simply broken? It's not a SIM card issue, works great with old WinMobile. I have a Samsung Gio.
Related
Hi there,
I have this Android chinese phone which was given to me as a present, no manual.
My problem is that the phone has two SIM slots and after I turn the device on, it boots and tells me that 1 SIM is missing. What happens after that is that it recognizes the SIM card in the other slot and connects to my mobile provider but the connection lasts couple of minutes and than I have no signal for a while. After some time, the connection to my mobile provider works again, but after another couple of minutes, there is no signal again.
I presume that the phone wants to switch to the other SIM which is not there.
How can I turn off this switching from one to another SIM?
Or do you have any other idea what could be causing this (regular) disconnection.
Does anybody know how to enter in boot mode (or any other mode where I could influence this switching between the cards.
The phone does not have any installed app which I could use to influence this SIM-switching.
Thanks for any help/advice
Pavana
I updated to the latest nightly (9/22) to try and relieve this problem to no avail. I've been running CM Nightlies on my P4 since they've been available. I always manually download them since, for whatever reason, Rom Manager seems to detect my device as the P4-wifi. I assure you the 3G (HSPA) modem works. I have a SIM slot, with SIM that has activated service (UMTS/HSPA). My cell phone is on the same networks and it picks up signal from my carrier fine.
With that out of the way; My issue:
Two days ago, I was leaving my house to visit family, and I wasn't going to bring my charger for my Tab, so I put the device in airplane mode to conserve battery. In hindsight, I should have just asked the device to power off, but that's besides the point. When I tried turning off Airplane mode, the cellular network did not become available again; this situation has not changed since.
What I've done: Rebooted the device after switching out of airplane mode, re-entered airplane mode and left it again, updated to the latest CM. I've opened my tab and reseated the connections for SIM and antenna (at least, the connections I can reseat, I have), I've also completely disconnected power by unplugging the battery and reconnecting it. Additionally, I got into some of the hidden menus and verified that WCDMA, which, I believe is the underlying tech for the local HSPA connection, is preferred to the cell radio.
Looking at the device, if I ask it to check for mobile networks, the list comes back blank. The network status shows "UNKNOWN:0" and the lockscreen shows "NO SERVICE." instead of "NO SIM" (which is what it shows when I remove the SIM). From what I can tell the radio has shut off and will not come back on.
Throughout all this Wifi still works perfectly, so the device isn't useless, however, I'm planning to sell this device and I would like it to be as fully functional as possible when I hand it off to it's next owner, so getting this solved is very important to me. Any and all suggestions are appreciated and I'm basically willing to try anything at this point. I feel as though I've tried everything short of a factory reset, which I'm not sure if that would help (I've even wiped cache and dalvik).
In case it's relevant, I'm in Canada, carrier is Telus.
Thanks for reading.
EDIT: I've just finished restoring the device to Stock 4.0.4 (I've used this stock image before when I had issues with the device and confirmed it is fully functional) and I am still having trouble. this points to either a carrier issue or a hardware issue. I will be calling the carrier in the morning, despite believing that this isn't the case. any suggestions on what could be the problem are still welcome, I'm willing to try just about anything at this point.
@Mystik
Back in the CM 4.1.2 days on the e4gt...we had a similiar problem. Now, I don't have you're device. But when this problem arose in the epic. We had a work around where we would turn airplane mode on and power off the device. Then power the device back up. When that didn't work we had to flash a modem, then flash back to the one we wanted.
Also, make sure after you turn off airplane mode.. that the mobile data under settings/more is enabled... sometimes it will not re-enable itself.
Let me know if this works.. if not I would be happy to help you search up a fix..
So I have a T-Mobile galaxy note 3 that I switched to a metro pcs Sim card.. The phone is unlocked and has been working fine ever since, until a few days ago. The 4G LTE symbol on the notification bar has completely disappeared. And now I can't access any internet connection or make or take phone calls, message. Etc. I thought it was a Sim card problem but after inserting a new Sim card I get the same disappointing problem. Metro PCS tried changing the ASN network connection to make sure but I hot nothing. However when I shut my phone off several times and turn on the plane mode on and off several times as well the 4g LTE turns back on for a few hours before losing connection again. Can anyone help me with this issue or has anyone incurred similar issues?
litheboss91 said:
So I have a T-Mobile galaxy note 3 that I switched to a metro pcs Sim card.. The phone is unlocked and has been working fine ever since, until a few days ago. The 4G LTE symbol on the notification bar has completely disappeared. And now I can't access any internet connection or make or take phone calls, message. Etc. I thought it was a Sim card problem but after inserting a new Sim card I get the same disappointing problem. Metro PCS tried changing the ASN network connection to make sure but I hot nothing. However when I shut my phone off several times and turn on the plane mode on and off several times as well the 4g LTE turns back on for a few hours before losing connection again. Can anyone help me with this issue or has anyone incurred similar issues?
Click to expand...
Click to collapse
When it switches off, what does the status bar symbol look like and what does it say in Settings > About Phone > Status? Have you modded the phone at all? Gotten any recent updates? Changed the modem or rom? Could possibly be the SIM card reader itself. If so, that is an easy, and relatively inexpensive fix.
es0tericcha0s said:
When it switches off, what does the status bar symbol look like and what does it say in Settings > About Phone > Status? Have you modded the phone at all? Gotten any recent updates? Changed the modem or rom? Could possibly be the SIM card reader itself. If so, that is an easy, and relatively inexpensive fix.
Click to expand...
Click to collapse
The status symbol only shows the bar icon that shows it does have a signal but nothing else except time abd battery life. I can't currently check Settings > About Phone > Status since the phone is currently running so it'll show a positive connection. Unfortunately the phone itself is my only current means of using internet (this forum). And how can I check/ fix the sim card reader?
Never modded or messed with either
Hello
Background:
I bought Moto E on Italian Amazon (stock ROM was retail FR). Because of loudspeaker failure I was forced to send it to the service. I done that in Germany. I never unlock bootloader or install any custom ROM on this phone. Pure stock.
Present:
I got my phone from service, speaker is working again. Unfortunatelly radio is not working any more. Phone is not able even to discover any SIM card (on both slots).
Version installed in service: 21.20.40.condor_retde.retdeall.en.DE retde
What should I do?
Do you think, that this is hardware problem, or just faulty radio driver?
Should I send it back to the service?
Go back to the service center and yell at them!
1st step
Another visit in service is another week with old phone. Because I am travelling a lot recently, I can not afford that at this time. This is my last possibility, I hope I can solve this by myself.
Yesterday I had some time and I discover that, when phone is connected to PC it is recognized as XT1021 (1-sim version). Because of that I flashed using fastboot the stock Kitkat for XT1022. After that, my phone can recognize that I have inside two SIM cards (phone ask for PIN number), but it is not able to turn them on. I see always that the airplane mode is ON, but there is no icon of airplane next to the clock (navigation bar, icons of signal are empty). When I turn the airplane mode on, I see that icons of carrier signal are replaced with icon of airplane. When I turn the airplane mode OFF, I have again signal icons, but they are empty (no signal) and in power menu is written that I am still in airplane mode. So I can not made any call, because radios are turned off.
I think I have faulty drivers of radio/modem. Did anyone except something like this?
Hey guys. So I've been trying to figure this out for several weeks with no luck and I was hoping you could help me. I have a Verizon LG G3 on AT&T on 10b. I can connect to 4G LTE and Edge just fine. However, when I try to make a call or receive a call on LTE, the network vanishes instantly. I'm talking from 3-5 bars to no service in within 5 seconds of calling my phone or calling from it. I've tried flashing different modems and the problem still persists. I already tried flashing the stock (what I'm on now), factory resetting, clearing the cache, etc. and have not been able to fix it. Today I called AT&T tech support and after they re-registered my phone I was able to make one phone call before the problem reappeared. When I made the call, my LTE dropped but I stayed connected through 2G/3G/Edge not sure which one.
The only other time I've had it working properly is when I had Cyanogenmod installed. However, that led to another issue. With Cyanogenmod, my phone would crash within a few minutes of booting. Most of the time I couldn't even make it through the setup. To be more specific about the crash, my screen would freeze and become unresponsive for a dew seconds and would then turn off completely. The green LED would turn on and stay on. Every time this happened I would have to pull my battery. The only way to prevent the freezing was to turn on airplane mode. If I turned off data or had the phone SIM-less it would still freeze airplane mode was the only solution.
If anyone can help me with either of these issues I would be greatly appreciative. If you need any more information or want me to post logs just let me know and I'll happily do so.
Here's a quick recap incase you don't want to read through the walls of text.
VS985 10b on AT&T
EDGE works fine
On 4G LTE network disconnects when making or recieving call
Cyanogenmod fixes network issues but freezes when not in airplane mode
Z3R01337 said:
Hey guys. So I've been trying to figure this out for several weeks with no luck and I was hoping you could help me. I have a Verizon LG G3 on AT&T on 10b. I can connect to 4G LTE and Edge just fine. However, when I try to make a call or receive a call on LTE, the network vanishes instantly. I'm talking from 3-5 bars to no service in within 5 seconds of calling my phone or calling from it. I've tried flashing different modems and the problem still persists. I already tried flashing the stock (what I'm on now), factory resetting, clearing the cache, etc. and have not been able to fix it. Today I called AT&T tech support and after they re-registered my phone I was able to make one phone call before the problem reappeared. When I made the call, my LTE dropped but I stayed connected through 2G/3G/Edge not sure which one.
The only other time I've had it working properly is when I had Cyanogenmod installed. However, that led to another issue. With Cyanogenmod, my phone would crash within a few minutes of booting. Most of the time I couldn't even make it through the setup. To be more specific about the crash, my screen would freeze and become unresponsive for a dew seconds and would then turn off completely. The green LED would turn on and stay on. Every time this happened I would have to pull my battery. The only way to prevent the freezing was to turn on airplane mode. If I turned off data or had the phone SIM-less it would still freeze airplane mode was the only solution.
If anyone can help me with either of these issues I would be greatly appreciative. If you need any more information or want me to post logs just let me know and I'll happily do so.
Here's a quick recap incase you don't want to read through the walls of text.
VS985 10b on AT&T
EDGE works fine
On 4G LTE network disconnects when making or recieving call
Cyanogenmod fixes network issues but freezes when not in airplane mode
Click to expand...
Click to collapse
I think you are talking about making calls on Voice over LTE. I am not surprised Verizon rom does not quite support it. Maybe you can try this swap boot.img hack to install AT&T rom and see if it solves your problem?
http://forum.xda-developers.com/showpost.php?p=58740774&postcount=43
Thanks for replying. That's my main theory too. However, according to my research, the VS985 didn't get VoLTE until the 12b update. I'll definitely try an AT&T ROM when I get the chance at the very least I'll probably learn something from it. Any chance there's an option to make LTE data only on this phone?