Sim Network issue - Moto X Q&A

after successfully recover from hard brick now i m facing network issue. the problem is that phone detect sim but sometimes doesn't registering network manually or automatically. even if network is there still i m unable to make or receive calls. when i make call screen goes blank and after 10 sec it shows call ended. network appear and disappear automatically. everything working fine i.e wifi and all only issue is network. there is no issue in sim card as it works fine on other phone. already tried 3 sim but same problem. i am on 5.1 stock firmware right now. i thought might b its ROM issue thn i tried Los but facing same issue. i also erase modem. but no result can anyone know how to solve issue?

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HELP Troubleshoot. Random/Reboot WIFI issues

Wifi not working with t-mobile sim? and I got unlock code and unlocked successfully.
WITH sim in, wifi will work, and mobile network works. THEN it reboots after a little while and the wifi stops working. and only mobile network works. When I try to turn on the wifi, it says its turning on, but doesn't.
I've cleared cache, factory reset in phone and recovery mode. Still same thing happens but ONLY when sim gets inserted it. Seems like it'll work for a little bit then the phone realizes somethings off and reboots, makes wifi not work but only mobile network.
I've taken out thes sim for now, and the wifi works beautifully. When I inputted the unlock code, I only inputted the network lock code I was given, there was other codes in the email also, am I suppose to input those as well? Could that be the cause why the software is out of wack?
firmware is on ogg 5.1.1 and for some reason I can't update the firmware, i'm guessing because its not a att sim?

Mobile network not working for MI5 - Critical

Hi MI5 community,
I am unable to use mobile network flawlessly in my MI5. Sometimes SIM1 running, SIM1+SIM2 both running, none of SIM card works. 2 weeks back I mistakenly selected the radio band as USA Band from *#*#4636#*#* -> Phone information1. Then after a fresh flashboot ROM installed problem solved automatically, but ideally this should not be. But now I am having terrible issue with SIM1 and SIM2 signal reception. Finally I have successfully write NV Values which was originally. But even after setting up values to the original, I am not getting mobile network signal. If I put only one SIM card then status bar says No Signal. If I put both SIM then 1st one says No Signal and 2nd one says Emergency calls only. Sometimes randomly SIM1 runs but SIM2 not. sometimes both not, sometimes both. Frustrating experience ever. Would appreciate if anyone can help me.
Looking forward some help from @TheUltrametricSpace especially.
I don't know whether i can help or not but i used to have mobile network fluctuating issue. At the same area, my SIM1 AND 2 will goes from 5 bar to 0, then came back to 3, then back to 0 then back to 5 again. It happen countless of times during the day(or even night). But the problem fixed when i switched to xiaomi.eu rom for mi5. I did do clean wipe system, data via twrp before i switched to xiaomi.eu rom.
Hope that helped
Hi @yChoon
Thanks for adding some views. Yesterday full day I was in latest EU ROM and the whole day I couldn't able to receive any signal. But around 8PM I have received signal @sim1 only. I hope I will be able to find out the culprit someday. But completely clueless
Read this : http://forum.xda-developers.com/mi-5/development/xiaomi-mi5-qualcomm-diagnostic-drivers-t3336200
That is why i tagged him. But he is not responding
Check this : http://en.miui.com/thread-277708-1-1.html
No success
:/ sorry i couldn't help you then. i fixed that problem by my own step above.. if it can't help you, at least i hope it could help other people
Hello @yChoon
I'm having the same issue as you with my Mi5. Did you ever experienced those issues again?

Note 5 N920i network problem, please help me!!!!!

Suddenly, my phone stopped connecting to 4G network, and even if it connects to 3G at best, the connection is pretty much slow. Phone calls through Dial-Up are not stable and laggy. I tried putting SIM card in another device and it works just fine. Nothing I've changed before this issue happened. After the issue happened I tried to install new OEM 6.0.1 Singapore from SamMobile & tried custom ROM but the issue remains, please help as I don't have another device and I need a solution ASAP.

Note 5 at&t emergency calls only issue.

Hello. About a 4 months ago i have bought from eBay a note 5 at&t version. I live in Greece and my network operator is WIND GR. The phone works fine but from time to time i get an emergency calls only message. And i can't get and do a phone call. If i restart the phone everything goes to normal. Sometimes it goes on and off by itself (the problem).
Have been anyone experiencing the same issue? If the phone is incompatible with my network operator should it not work at all?
Did you tried to change the sim card? Maybe issue is from sim or from sim slot
johnny.goldy said:
Did you tried to change the sim card? Maybe issue is from sim or from sim slot
Click to expand...
Click to collapse
My sim is new. When i purchased the phone i have changed my old sim with a new sim 4g compatible.
It happened again. And i am missing calls like this. I will smash it with a hammer
Go to settings, backup and reset, then reset only network settings, see if any better signal
johnny.goldy said:
Go to settings, backup and reset, then reset only network settings, see if any better signal
Click to expand...
Click to collapse
Done that right now. Tomorrow i will get a new sim card and i will post if anything gets better. Thanks for the help.
Update of the situation. I have changed sim card 2 times. It still happening. My phone runs at nougat now and the problem still appears as before at 5 and 6 Android version. I currently gonna change service provider that has better and stronger signal. From what i have discovered. When the phone looses signal due too poor service provider signal sometimes it can't register to network by itself. If i enable airplane mode and then turn it off it comes back. Any clue? If it's hardware issue what can i change?
Should i have at the mobile networks auto detect or manual and my carrier?

SM-N950F 4G problem after last dec update

Hi guys, I have an issue with 4G after the last dec update. In 4G/3G/2G auto connect mode, usually the receiving data arrow ( v arrow below the 4G symbol in notification bar) gone missing and thus the connection got lost. Only transmitting arrow is visible (the ^ one). I have to wait for some minutes or turn to flight mode and back to get my data connection back.
In the beginning I don't really sure this issue is caused by the latest update, but after I tried nearly everything, including factory reset which is doesn't help, I think that the update is the problem.
I have tried my sim on another phone and it worked normally. I have tried another sim on my note 8 and it got the same problem.
Oh and this is only a 4G issue. My 3G works normally. And before the update, I never experienced this kind of problem.
Two of my friends got the same note 8 and one of them is also using the same carrier as me, but neither of them experiencing this issue.
Anyone can help?
Thanks in advance
I had this issue too, it seems 4g connection only got the problem...,
Problem solved, they replace my device
I have the same problem but seems like in a different way, when I got the phone first time I contacted my service provider to activate the 4G service cause it was inactive on my line due to provider's issues, anyway the phone worked on 4G for only 2 days, after that it kept working on 3G, I contacted the service provider many times but they have no issues with my SIM or handset.
I still don't know what is the problem, is it a hardware malfunction? Is it an installed app? Is it a Samsung Update? I don't know!
have tried getting a replacement sim card, I had same problem in the past and they had by mistake sent a sim that was not 4g, got replacement and problem solved
Well, the problem is that it worked at the fist time on 4G so the SIM was 4G not 3G, but I have just comeback from their store, at the first the technical support did something in their system and switched the phone to airplane mode then turn the network ON back and the deice worked on 4G but after a couple of minutes the phone switched to 3G without going back to 4G, then he advised me that this problem either a SIM or handset problem and it's always 90% SIM problem, so we changed the SIM card and the phone is working on 4G for around 30 minutes till now, I hope it will keep working on 4G
2 days and phone is still working on 4G, it was a SIM card problem
Aoa dear
I.have the issue of secure folder as its not there in my cell phone and when i install it from play store and open it but failed to open as it give the option knox mode failed

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