So I have a Samsung J3 (2018)(SM-J337A AT&T) I got from the US. I noticed that the WiFi doesn't work so I tried to factory reset it, thinking that would fix it. Nope, just made me stuck in the start. It just keeps me from moving past/skipping the WiFi connect because of the FRP and when I do try to connect, it doesn't connect even though it can detect. I tried multiple other WiFi connects like pocket wifis or mobile hotspots but no luck.
It gave a message at the start saying "Insert SIM Card to access network services." so I tried replacing the AT&T SIM Card with a local SIM Card but no luck either. It didn't detect either of the SIM cards.
Is there any way I can fix this?
Related
I have a tmobile exhibit 4g, that i got today and it keeps saying not registered on network, i have installed a new sim card(activated of course) and it still says "not registered on network". I also tried a known working sim card and it still says same thing, Here what i have tried so far
factory reset
reset vpn to defaults
Any help on this issue would be appreciated.
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
Hello
i changed phone operator two days ago, i put the new sim into my phone but it do not recognize the sim card. i went into network settings but some options like "access point name" is disabled ( i guess because it do not read the sim..). even if I try to connect to wifi..it does not work..it wont evene scan for network.
It was working just fine before i changed the sim...i also tried a factory reset....but nothing...i put different sims but it just wont recognize ( the new sim works fine on any other phone...)
Any suggestions??
is it something can be fixed via software?
Thanks
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
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.