It looks like on two different 21s based ROMs, my signal keeps dropping (as in it says no network signal found). I have to reboot for it to come back. At first I thought it was a fluke, but this time it happened overnight. I rebooted and received a handful of texts shortly after it regained signal. Trying to figure out if this is specific to my device or to 21s.
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I have a Vibrant...stock and I haven't received the update yet. Houston, TX area.
For the past 3-4 days, I keep randomly losing my network signal. No 3g, no Edge. Rebooting the phone or putting it in and out of Flight Mode will wake it up. Otherwise I think it would stay dead regardless of what I do or if I move around. I am in normal areas that should have decent 3g signals and have never given me issues before with this phone.
Any ideas? Maybe weird network issues in the area or definitely a problem with the phone itself? Maybe the OTA update will clear it out?
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sjetexas said:
I have a Vibrant...stock and I haven't received the update yet. Houston, TX area.
For the past 3-4 days, I keep randomly losing my network signal. No 3g, no Edge. Rebooting the phone or putting it in and out of Flight Mode will wake it up. Otherwise I think it would stay dead regardless of what I do or if I move around. I am in normal areas that should have decent 3g signals and have never given me issues before with this phone.
Any ideas? Maybe weird network issues in the area or definitely a problem with the phone itself? Maybe the OTA update will clear it out?
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This actually happened to me couple times last night, first when i turned off wifi and 2nd time i was on 3g and suddenly data signal was gone completely
I'm on ji6
Same problem here. I upgraded to froyo and then get back to 2.1. Had a fix drawbacks but it is now working fine until I noticed this problem where the signal is dropped. Sometimes it says that the sim card do not allow to connect to that operator, but when I try a few more times it reconnects. I'm waiting samsung release again froyo to update the phone and try to fix this problem.
I've got some serious issues with my Nexus 4, I've found posts with similar problems but not exactly what I have. I'm at a loss what to do next so any advice would be much appreciated.
I bought a N4 around March this year, direct from Google, and connected it to TPG Mobile here in Australia which uses the Optus network.
It was fine until about the end of May or beginning of June where it started losing signal regularly. First thing I noticed is it would start dropping calls and displaying "No network available", the triangular status bar at the top would go blank (completely black, not grey) for about 30 seconds, then it would return to normal signal and I could make calls again. However it would do this every few minutes, whether I was on a call or not, and each time it would last roughly 30 seconds and then return to normal.
Around the same time I started to receive SMS on either a delay, or they'd arrive on-time, but then keep sending multiple times for about the next hour.
I rang Google, they got me to go through recovery mode, then it worked fine, for about 24 hours, before it started again. They sent me a new device, which did the same thing within hours of activation, so I requested a 3rd device. At the same time I thought it might be the sim card, so I got a new one of those too.
My 3rd device and new sim card worked perfectly for about 3 days then the same problem started. Factory resets etc seem to fix the problem for either minutes or hours, but never permanently.
Then last week I noticed further weird symptoms, I started getting the usual sms to say someone had called and left a voicemail, however my phone never showed any sign of a call (visual, audio or missed call in the call log). I confirmed with several people who tried calling me and they confirmed the phone rang on their end before going to VM. I tried it myself from a landline and it randomly rings or doesn't ring on my end, however I also noticed when I hung up on the landline without answering my Nexus 4, it continued to ring indefinitely, ie. it hadn't registered the caller hung up.
My provider assures me there isn't an issue in my area, my wife uses the same provider (with an iphone) and has not had these issues. I can't swap sim cards with her though as she has a full-size sim. I tried another sim with my phone for a few hours and it worked fine, however my phone with my sim will sometimes go a whole day without issues so it wasn't long enough to truly test it.
I've deleted all apps that might somehow affect it and the hasn't helped either.
Basically I'd like to know is this likely to be a phone issue, and I pursue the issue with Google, or some sort of network/sim issue and I pursue it with my provider?
I have an SGH-I337M on the Bell network. After a flight, I took the phone off of airplane mode and it did not regain service. After a restart service reconnected (data and texting) but then disappeared after a minute. Generally, I do not get "No Service" errors and I have never gotten "SIM Card Removed", the bars and LTE in the corner persist although nothing seems to come through. I did some searching and found this thread:
http://forum.xda-developers.com/galaxy-s4-att/help/service-problem-i337mvlufni2-t2977997
and gave the instructions a shot. I was able to use data and text for about 5 minutes initially, but since the first boot it has reverted to the original problem (coincidence?). I also took the phone in to a repair shop and had the SIM tray replaced, which did not solve the problem either. I have tried using ODIN to return to stock (I337MVLUFNI2_I337MOYAFNI2_BMC) and have tried CM11 and unofficial lollipop releases. The issue is identical in all cases.
I'm really hoping I missed something obvious here.
Thoughts?
https://www.dropbox.com/s/yr1p2u7rffnzdgc/11082962_10203649237567940_2128062907_n.png?dl=0
Tested my SIM in another phone and it worked perfectly. Tested different SIM in this phone, same issues.
Bump.
The same issue here. The service/network is lost a few minutes after reboot. When I reboot my phone everything works perfectly fine - call, sms, switching to airplane mode, navigating through Mobile Networks menu items (in Settings->Connections->More Networks->Mobile Networks). After 5 minutes all those features/apps stop working. Everything looks normal but when I start one of those apps, the app hangs/freezes and stays frozen. For example when I try to place a call, the app is stuck in 'Dialing....' process and stays like that forever. When I try to end the call the app is not responding. The same thing with all apps that need/use network. All those apps stay frozen when started. Notification bar is showing I am connected to the network and network icon is showing strong signal. I tried different roms including stock rom but that didn't help. Looks like a software issue but I could be wrong.
Any suggestions anyone?
Hey guys I've got my N6P International set, with nanosim.
Every once in a while, when I'm surfing the net, facebook etc. my data would just drop from LTE to "No Service" and stays there for 15 or so seconds before jumping back up.
I have tried going back to stock/locked bootloader, tested with another sim card and yet the issue occurs.
Using my sim card on another phone shows no drop in signal.. any advice or if I should RMA my device.
Currently back to 6.0.1 Chroma.
Its getting really frustrating in the last 10 mins to drop over 3 times.
With phone on take SIM card out, then restart the phone. After it reboots, then reinsert the SIM card.
thanks for the tip but it don't really help, still happening.
Have the same issue. Ended up having to RMA my phone. Huawei must have sent me a diffrent phone (used) since the IMEI is diffrent. It worked for couple hours then I got Nougat 7.1.2 update and LTE started droping again . Thought the update caused the issue so I unenrolled from Andorid Beta and rolled back to 7.1.1. but it did not help. Does anyone have a clue what could be the cause?
I do have the same issue for about 2-3 months, but only at work where's pretty bad signal. Data stays on until its used by any app, play store upgrade or yt video buffering for instance. Then it disconnects and search for signal again. Very annoying. At home everything works just fine. That's really really strange.
Just picked up one of these phones. Really like it so far! One issue I've noticed though, after a few days of ownership, it's randomly dropping/not detecting the sim card? It's happened at least twice where I've left it to charge over night and woke up to the no sim icon, and yesterday at some point while I was watching YouTube videos in full screen (in my hands, off charger, no notice of the drop either whenever it actually occurred). Quickly popping the sim tray out and in resolves the issue. At first I thought it was because I was using a manually cut sim card, so I've since replaced the sim but the problem persists.
Anyone else have this issue? Should I have the device exchanged?
Thanks
First the phone froze and after restart dropped sim
I just had the same issue occur just now. The phone had frozen for over an hour before I did a forced reset and now when it started back it shows no SIMCARD and no connectivity. I am like you, I really like this phone but hopefully this isn't a permanent issue.
Watched it happen just now. Goes from bars to no sim icon without error or notice. Resetting the network settings, resetting the phone, and powering it off/on won't fix it. Literally have to pop the sim in and out and its recognized right away.
I lost sim recognition after I flashed to LOS 11/30 and no matter what I tried, phone would not recognize the sim. Once I flashed back to stock, it came back. Hopefully this was due to the rom and the problem won't come back.
I am not sure if I lose the SIM, but I will say that when I am driving around with Android Auto, I constantly see the cell signal go from LTE to no signal every couple minutes...
blakeatl said:
I lost sim recognition after I flashed to LOS 11/30 and no matter what I tried, phone would not recognize the sim. Once I flashed back to stock, it came back. Hopefully this was due to the rom and the problem won't come back.
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Had same issues when I flashed back to stock I actually have better signal than when I got it out of the box.... Almost as if the software wasn't installed correctly or something
Same here I'm on the stock room. I'm wondering if it is an app I downloaded. Any idea how to wipe cashe not the apps but system.
This is happening at least twice a day now. It seems to be software related. Power off and on without taking out sim fixes it.