Mobile Networks missing - Galaxy S6 Q&A, Help & Troubleshooting

it is my uncle's phone
SM-G920F Galaxy S6 (G20FXXU5DQA2)
flashed back to stock and everything is 100% stock but the mobile networks in settings is missing and the sim cards wont work, it detects them being inserted but doesnt seem to connect.
Please help, couldn't find anything
Messing around with mobile data gives "insert sim card"

tried to factory reset from recovery, clearing the cache and reset from the Smart Switch desktop software.

Could possibly be an issue with the sim card slot, does the phone show a valid imei number?

nabilbek said:
it is my uncle's phone
SM-G920F Galaxy S6 (G20FXXU5DQA2)
flashed back to stock and everything is 100% stock but the mobile networks in settings is missing and the sim cards wont work, it detects them being inserted but doesnt seem to connect.
Please help, couldn't find anything
Messing around with mobile data gives "insert sim card"
Click to expand...
Click to collapse
100% hw, faulty SIM reader, cold solder, or something else on motherboard.
Try to ask in Samsung authorised repair center, maybe if you are lucky like me, factory warranty would be accepted.
I just told them I bought the phone second hand and it does not recognize SIM, did not go into details

force stop stuck on s6

nabilbek said:
it is my uncle's phone
SM-G920F Galaxy S6 (G20FXXU5DQA2)
flashed back to stock and everything is 100% stock but the mobile networks in settings is missing and the sim cards wont work, it detects them being inserted but doesnt seem to connect.
Please help, couldn't find anything
Messing around with mobile data gives "insert sim card"
Click to expand...
Click to collapse
The same thing happened to my G920P and I was stressing out looking for a solution. Finally, I figured it out myself.... I used idonne apps unlocking service awhile ago and still had their unlock app installed on my device. After trying repeatedly to no avail to unlock again I finally started looking thru the 3 dot settings and manuvered to the IOT HIDDEN SETTINGS TAB. From there I went to the "test mode menu" setting. Then to HW Test setting, down to #7 NV Rebuild All. Clicked that and let it do it's thing and all settings returned, no more stressing. Hope it works for you.

Related

Resco tools and broken IMEI

Got my brand new HTC Touch Cruise the other week and it was working great. I then decided to try and Geotag my photos which apparently is as simple as changing a registery value. So off I go and download the trial of Resco Explorer 2007 and reg editor from their website and change HKLM\Software\HTC\Camera\P9 »Enable« to 1
Soft reset the phone and then the phone no longer connects to the network.
(The geotagging feature of the camera worked fine too.....)
I uninstalled the tools, did a hard reset and reloaded the original ROM to no avail - the phone still refuses to connect to the network (Telstra NextG - Australia) which it was working fine with before. I have also noticed that when there is no Sim in the phone the IMEI does not agree with the one on the back and when the Sim is in it says the IMEI is "Not Support"
Any help would be appreciated, I'm missing my new toy already!
Do a Hard reset and your problems should be gone. Easiest way is "Settings > System > Clear Storage > 1234". Remember to sync your contacts before you do it and good luck
I'd already tried a hard reset and loading the latest ROM (Which was the same as the one it shipped with) but that did not work.
Just tried doing it again the way you suggested and it's still broken.
Also on further inspection my IMEI when it doesn't have a SIM in to is almost the same as the one of the back but just has an extra 01 on the end. It still says "Not support" when I have the SIM in it though....
All sorted out.... It seems it was an issue with Telstra(They said they had a brief outage, and for some reason my SIM didn't reconnect to the network until they gave it a "Kick"), not the phone that just happened at the same time as I was editing the registery. Talk about bad luck......
TMBomber said:
All sorted out.... It seems it was an issue with Telstra(They said they had a brief outage, and for some reason my SIM didn't reconnect to the network until they gave it a "Kick"), not the phone that just happened at the same time as I was editing the registery. Talk about bad luck......
Click to expand...
Click to collapse
Yes so next time your Polaris not working so blame always your operator if the device dont connect, The imei cant NEVER chance with a registry chance what ever you do with the device the imei never changes, with that numbers you cant mess with
you said the imei changed when you have the sim card inside and evidently you couldn't connect to the network because of that... so deosn't that implys there's a 'possibility' that bypass the hardware imei by doing something to the sim? we might be on to something here guys..

Suddenly No service some time after root

So got this shiny new phone and decide to root it for adblock etc.
The root went fine, I used the Xperia-L root zip not the chop--- something. So a while after that, maybe a day or two suddenly I get a No Service.
I went into Settings-Mobile Networks and try to choose the network manually, I couldn't, I can move through Auto and Manual but when I select Manual it always goes back to Automatic. Can you guys confirm that that settings doesn't work? Can you choose Manual instead of Automatic?
Then the phone scanned for available networks and it found my home network relatively easy...
NOW selecting my home network gives me the error "Could not join network right now. Please try again later"(or something like that). A minute after that a toast message pops up "Registered on Network" but I still get no service...
Anyone have any idea? I thought Sony phones are root friendly with them sponsoring CM and all....
I have tried everything. Unlock, relock bootloader, restored TA...flashed stock firmware....taking the sim card out while power is still on and inserting it again.....
So frustrating, thanks for any insight....:fingers-crossed:
It happened with me..
What I did is,
Switched off the phone
Removed SIM card
Restarted phone
Again switch it off
Inserted the SIM card
Restarted the phone..
It worked!

[Q] Nexus 5 not reading ANY Sim cards.

Hey folks, i tried searching here for my issue. I found many similar threads, but nothing that solves my issue.
Two days ago i started having issues sending picture messages, today i start losing network signal until it cut out alltogether.
I tried multiple sims from different carriers and got nothing. Ive tried the following:
Factory reset.
Rebooting and reinserting sim
Resetting apn settings, custom apn settings.
I have WiFi, and the symbol says "no service" nothing about emergency calls only.
The new information i have, which i didnt find on other threads here is this; i found a sim card app and tried it, its able to pull my sim card information off the card, (phone number etc.) yet i get no cell service. Any ideas?
Nexus 5
Stock lollipop
Hey @kimsgrim
Hmm so u already did a factory reset? And didn't restore anything before test?
Really stock or u changed anything (Rom or Kernel)?
But ur phone doesn't say "No Simcard found, please insert and reboot" or kind of that?
If no the simcard is fine and the phone also seeing it. The sims u tested where card which definitly work on other phones?
So two things possible in my opinion:
1) System problem: Anything is reset or not working, which should be done with a factory reset or maybe flashing another stock firmware over
2) Hardware defect of antenna. Would be sad, but no other point for be atm.
Much success
CHEERS
Sounds like the sim card reader is messed

N5 has No service, No data and SIM card sometimes not recognized

Heres whats going on
I have reset the N5, and flashed the July MM image. Everything flashed fine.
I insert SIM before booting, Android doesnt see SIM... so i pulled out the SIM and reinsert while on, and it sees it.
The Signal goes into an empty triangle... It says you have voicemail. And nothing else happens.
No data, no service. *#*#4636#*#* shows the right selection, it gives me the option to turn on the radio, but if i click it, nothing ever happens.
Under phone info, it sees my phone number, the IMEI is fine, and its not blacklisted when i check multiple carrier's websites.
I just cant seem to figure out why it wont just acquire service signal even when APN settings are right.
Anyone got any tips, tricks or solutions to this?
Possibly damaged sim card or sim card reader?
audit13 said:
Possibly damaged sim card or sim card reader?
Click to expand...
Click to collapse
dont think so, i think its software maybe.... When i do *#*#4636#*#* it will show my phone number on the top... if i remove SIM, the number becomes "unknown"... so i dunno
If it happens with all SIM cards, it could be a damaged sim reader as different areas of the SIM card contains different information? Not sure.
I have similar problem with MOB30P on T-Mobile network. The 4G LTE would work just fine (I can browse web etc), but the voice is where it is failing hard. I would have dropped calls along with calls not coming through (both calling out and receiving calls).
I downgraded to MOB30M and everything appears to working fine now. I have not opened any bug against Android yet, because I am not sure if I am the only one experiencing this problem.
Hi, I was googling for a problem like your one. My N5 does not recognise the sim at boot, but only if it is "hot". If I put it in the fridge for ten minutes and then reboot, all works fine until the next shutdown. I'm sure it's an hardware problem (already tried different sim) so I disassembled all the phone, and it looks perfect. With some cleaner for electrical contacts it can survive for some days, and then starts again. So sad, I don't want to change phone just for this stupid problem XD
I'm getting exact same issue with my Nexus 5 since CM13 0803 update, which brings MOB30Y to my phone I believe.
At first my phone could still recognize my carrier (China Unicom), but there is no signal.
Then I flash radio image from MOB30Y and the phone now cannot find SIM card completely.
Even reflashing factory image doesn't help.
I'm now trying to reflashing MOB30P to see if it helps.
Update to latest August security update radio and bootloader

Can incorrect firmware stop the SIM card from working?

I have a Samsung Galaxy A5 2017 SM-A520W, which I recently bootlooped and had to reinstall the firmware using Odin. However, when I restored my nandroid backup, the SIM card refuses to be recognized. It works in my other phone however (which I temporarily switched it while I fixed the samsung). So I tried resetting network settings, clearing the cache and other suggestions, until I finally decided to just factory reset the rom and see if it recognizes it from a clean OS, and it didn't. I can't see any reason why the hardware would be broken, since all I did was take the SIM card out and put it back in.
So then I thought about the firmware. I got it from here, which has a ton of different product codes for different carriers and countries. I'm in Canada on the Fido network, so that's what I chose (FMC). But Fido is owned by Rogers, which is a different product code (RWC)... So I'm wondering if choosing the wrong firmware will actually prevent the SIM card from being recognized? I can't understand why it's not recognizing it. >.<
Any ideas?
Thanks!
Have you checked the APN name and settings?
Hmm, I'm not sure I understand, can you explain further?
Tab_Triggerhappy said:
Have you checked the APN name and settings?
Click to expand...
Click to collapse
I mean the settings for the carrier like mmsproxy and ipv4, etc...
It's a longshot but it's in settings and network settings - mobile data.
I do not know exact english words used... Accesspointname if directly translated.
Describe more about phone behaviour.
Do you get same notifications as when no sim in phone?

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