No Signal and unavailable network. - Galaxy 3 General

I have no signal and under the notifications bar It says "Selected network (T-mobile UK) is unavailable. So I thought let me change the sim, I did it still doesn't work. I checked and cleaned the sim card hole. Didn't work, I tried to set it manually under networks and select network, it didn't work also I checked my IMEI but my IMEI is still shown but my signal is -113dBm so what's the problem? I even flashed and factory reset to stock still the problem persists. Right now I'm using Kyrillos rom 10.5. Thanks in advanced.

Might sound stupid but try the Sim in another phone?

AzNTypeR said:
Might sound stupid but try the Sim in another phone?
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I've tried 2 sims and they both work in another phone. Seems like it could be a faulty sim card slot. Guess it's time to throw out my G3 had it now for over a year.

Related

Nexus 4 - No Service with specific carrier

Hi,
I have Nexus 4 for about 3 months, and I was using it fine with my SIM cut as micro sim in my carrer.
On Friday night, I put it into airplane mode and went sleep. On the morning I disabled airplane mode but the carrier signal didn´t came back.
I tried then put my micro sim into another phone, and it worked fine. I other carrier micro sim in my phone (also cut from normal SIM) and it worked just fine !
I already tested 2 micro sim from my carrier and all of them gets the same, N4 says 'No Service | Carrier name' but with another carrier, it works fine (tested with 3 different micro sim, from this same other carrier).
I called to my carrier asking if there is something blocking my phone, but they say everything is fone every time. (Btw I discovered that my sim was blocked for some reason, but it is now unblocked - so I´m thinking if they did not blocked my IMEI, but they say no every time).
If I go to the Mobile Networks -> network operators and choose my carrier from the list, it says 'Selected network (XX) unavailable'. If I choose automatic, it does not give me any error, but the 'No Service' text...
I already tried factory reset, reboot, airplane mode, flashed google factory image, flashed radio .33, .48 and .54, flashed CM 10.2... nothing...
My question is, is any way, techinical way speaking, that my phone has 'broken' something that avoid me to use only a specific carrier? Because my carrier adivce me to take it to repair, as it is the guilt on the history, but I´m thinking it is very strange that it work for another carrier but mine...
Is that even possible ?
Thank for you help !
"If I go to the Mobile Networks -> network operators and choose my carrier from the list, it says 'Selected network (XX) unavailable'. If I choose automatic, it does not give me any error, but the 'No Service' text..."
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I'm having the same problem here, I've tried to flash back 4.2.2 ROM and then 4.3 stock but still no better. please any1 help us :crying:
Have you checked APN settings? I've seen it sometimes default to the wrong one if there's multiple in there. Who is your carrier?
It happens to be in my case, a problem with the carrier itself. I tried others SIMCard from same carrier, and got the same issue. Tried from a different carrier and worked just fine.
After a long fight if the carrier, I found out that my IMEI was on blacklist only for that carrier and after another long fight, I could get it unblocked and everything got back as normal...
trystan2k said:
It happens to be in my case, a problem with the carrier itself. I tried others SIMCard from same carrier, and got the same issue. Tried from a different carrier and worked just fine.
After a long fight if the carrier, I found out that my IMEI was on blacklist only for that carrier and after another long fight, I could get it unblocked and everything got back as normal...
Click to expand...
Click to collapse
I have the same problem with my nexus 7 2013 LTE, my carrier is always unavailable other 2 carriers in my country are just working fine. why would a a carrier put IMEI on a blacklist? I want more info about this problem if you pleased.
thais14_03 said:
I have the same problem with my nexus 7 2013 LTE, my carrier is always unavailable other 2 carriers in my country are just working fine. why would a a carrier put IMEI on a blacklist? I want more info about this problem if you pleased.
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Click to collapse
They have a lot of reasons to do that. In my case I believe that the cause was my phone got stuck with something and start to consume a lot of 3g data. As my plan do not allow tethering, they identify this high usage as tethering and blocked both my simcard and my IMEI (even that at first they swear my IMEI was not blocked, but after I opened a ticket in government regulations, they fixed it).
If it works with 2 other carries, do not work with other sim cards from your carrier and in past it worked fine, it is 99% sure that your IMEI is blocked at the carrier, I would say

Note registered on network

I swapped sim card on my cell phone, i have n9005 (running 4.4.2 TouchWiz Rooted) and works on every network in my country,
the other sim card worked fine, i kept on swapping 2 sims because sometimes i had to use 3g on the other network.
Today it suddly stopped, now my both sim cards are not working.
I have restarted my phone, pulled out battery and also reinserted my sim card, no success.
Any solution?
EDIT: I fixed it, thanks
thahim said:
I swapped sim card on my cell phone, i have n9005 (running 4.4.2 TouchWiz Rooted) and works on every network in my country,
the other sim card worked fine, i kept on swapping 2 sims because sometimes i had to use 3g on the other network.
Today it suddly stopped, now my both sim cards are not working.
I have restarted my phone, pulled out battery and also reinserted my sim card, no success.
Any solution?
EDIT: I fixed it, thanks
Click to expand...
Click to collapse
how?
You probably have damaged something in your sim card slot probably a pin.. as you said you usually keep on swapping sim cards.. have a repair center look at it..
MystaMagoo said:
how?
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Actually my network mode was WCDMA and had no 3g signals where i was..

Note 3 4G not registeredon network

hello guys
i have galaxy note 3 SM-N9005, suddenly it showed "not registered on network". i tried the SIM card on another phone and worked, and tried another SIM card on my note 3 and worked fine. can anyone help, what should i do.
thanksss
Tried another sim card in the phone? Phone shows correct imei?
imei is correct with each sim, nothing changed
try change APN service
how i can change APN service?
amarsalami said:
how i can change APN service?
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Click to collapse
Via your networks settings or Google search .
Use auto registration.
Thankx all
I tried what you said and nothing worked. I found out that with SIMs from certain mobile carrier the network signal is weak and sometimes not registered. What would be the problem?
Try a different modem .

No service

http://www5.0zz0.com/2018/10/10/03/698559611.png
hello there ,
I have an essential phone unlocked variant , I get no service when I insert my sim card in and i can't choose networks .
do you have a solution for this issue .?
Rwin01 said:
http://www5.0zz0.com/2018/10/10/03/698559611.png
hello there ,
I have an essential phone unlocked variant , I get no service when I insert my sim card in and i can't choose networks .
do you have a solution for this issue .?
Click to expand...
Click to collapse
Does it say Sim not present? If not, go online and search for APN settings for whatever network your on and enter them in as listed. On the screen you posted, click "access point names" and transpose the data from whatever your carrier's APN settings.
https://imgur.com/SD35C8d
Twowong4words said:
Does it say Sim not present? If not, go online and search for APN settings for whatever network your on and enter them in as listed. On the screen you posted, click "access point names" and transpose the data from whatever your carrier's APN settings.
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Click to collapse
APN settings are set automatically with my local carrier sim card .
check attached photo
Rwin01 said:
https://imgur.com/SD35C8d
APN settings are set automatically with my local carrier sim card .
check attached photo
Click to expand...
Click to collapse
Can you raise this in guide section ->uicc unlock post. you can ask for modem partition from someone who has openus variant and can flash those ones. Did you also check your sim in another phone
arjunv said:
Can you raise this in guide section ->uicc unlock post. you can ask for modem partition from someone who has openus variant and can flash those ones. Did you also check your sim in another phone
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Click to collapse
yes my sim works in another phone . and i installed BTS rom and still having the same issue
Rwin01 said:
https://imgur.com/SD35C8d
APN settings are set automatically with my local carrier sim card .
check attached photo
Click to expand...
Click to collapse
Maybe i dont understand but it looks as if you have 2 APN settings profiles yet you don't have either selected.
Twowong4words said:
Maybe i dont understand but it looks as if you have 2 APN settings profiles yet you don't have either selected.
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My phone is somehow locked for Sprint after the September update even if I have an unlocked variant (OPENUS)
Rwin01 said:
My phone is somehow locked for Sprint after the September update even if I have an unlocked variant (OPENUS)
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https://forum.xda-developers.com/essential-phone/how-to/discussion-brainstorm-sim-unlock-t3724135
https://forum.xda-developers.com/essential-phone/how-to/discussion-invalid-sim-card-options-t3838749
I glanced at these but didn't read the whole threads. Pretty sure they address sprint sim card locking post update. It may be worth reading about to see if yours is a similar situation. Good luck man.
I'm kind of in the same boat, essential phone openus variant with no service. I've tried different things and have been able to get it to work but just for some time before it gets no service again or some odd behavior. I don't get invalid sim or no sim notification, it is a no service notification, apparently it recognizes SIM and accepts it but is not able to find a network, as if it were out of coverage or mobile radio off. SIM card has been tested in another essential phone at same location and works flawlessly.
So far I've found that if I downgrade software to nougat and then update to oreo or pie, and then insert SIM, phone is able to get LTE connection, receive or make calls, it works fine. But then after a couple of hours or even half a day, it gets no service again. Network or factory resetting doesn't do anything, changing network settings neither,then after If phone is restarted with sim in or if sim is inserted while on, it immediately shows voicemail notification but there is no way to retrieve it of course.
Most of the times at network settings it gets and shows the correct apn but it doesn't let to choose network manually, it turns back to automatically and says no networks available. Some times I get a rare relation with wifi connection, if wifi is on and connected it shows carrier name as if ti was connected to network but no calls in or out, as soon as wifi is turned off or disconnects, carrier goes back to No Service.
Maybe someone knowing this has some idea of why phone has this strange behavior which makes it useless as a phone.
rodmat said:
I'm kind of in the same boat, essential phone openus variant with no service. I've tried different things and have been able to get it to work but just for some time before it gets no service again or some odd behavior. I don't get invalid sim or no sim notification, it is a no service notification, apparently it recognizes SIM and accepts it but is not able to find a network, as if it were out of coverage or mobile radio off. SIM card has been tested in another essential phone at same location and works flawlessly.
So far I've found that if I downgrade software to nougat and then update to oreo or pie, and then insert SIM, phone is able to get LTE connection, receive or make calls, it works fine. But then after a couple of hours or even half a day, it gets no service again. Network or factory resetting doesn't do anything, changing network settings neither,then after If phone is restarted with sim in or if sim is inserted while on, it immediately shows voicemail notification but there is no way to retrieve it of course.
Most of the times at network settings it gets and shows the correct apn but it doesn't let to choose network manually, it turns back to automatically and says no networks available. Some times I get a rare relation with wifi connection, if wifi is on and connected it shows carrier name as if ti was connected to network but no calls in or out, as soon as wifi is turned off or disconnects, carrier goes back to No Service.
Maybe someone knowing this has some idea of why phone has this strange behavior which makes it useless as a phone.
Click to expand...
Click to collapse
I think your phone locked for Sprint like mine , call them to unlock it .
mine is unlocked From Sprint now , but i sill need a Sprint Sim to complete the unlock process which i didn't get yet , I don't know where i can get one (I LIVE IN MOROCCO)
I guess it's possible but I really don't think that phone could be locked to sprint. I understand although sprint variant is supposed to be locked, most users are able to use other carrier sim, and only the pie update has shown invalid sim, which is not this case by the way.
rodmat said:
I guess it's possible but I really don't think that phone could be locked to sprint. I understand although sprint variant is supposed to be locked, most users are able to use other carrier sim, and only the pie update has shown invalid sim, which is not this case by the way.
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Click to collapse
mine is not a Sprint variant , and somehow is locked to Sprint , it was previously purchased From Best Buy . but after installing Pie on it , it shows no service , i called Sprint and they said it's locked to them
than i made an unlock request and they unlocked it
ok, so maybe flashing modemst images for openus variant could solve the problem, I don't mind trying if they come available but haven't found them yet.
rodmat said:
ok, so maybe flashing modemst images for openus variant could solve the problem, I don't mind trying if they come available but haven't found them yet.
Click to expand...
Click to collapse
if you found them , let me know , i wanna try them as well

network problem

Anybody facing network issues in a51? Sometimes i lost the internet completely. I have tried different sim cards, edited APN, formatted same problem. I can't sort out the issue is from phone or network provider. How can sort out the issue with phone or sim card? Pls help, so that i can return my phone.
nithambu said:
network issues
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Hello. I have the problem occurred when there were two SIM cards in the phone and the Internet was from the second SIM card. if leave one SIM card in the first slot and the second remove the problem disappeared. It was found out that this depended not on the phone but on the specific SIM card and its firmware. what may have a you problem can not tell. im said that he knew. thx.
Apparently from the tests performed, it is a problem in the LTE mode, since I switched to UMTS (3G), I no longer had connectivity problems. I hope that the problem can be corrected by Samsung, in a next update.
PS: Needless to say, I stopped having 4G communications !!!
Is or was your problem in any way similar to mine?
https://forum.xda-developers.com/galaxy-a51/help/samsung-a51-disconnects-cellular-network-t4160527

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