No network connection. - Galaxy A3, A5, A7, A8, A9 Q&A, Help & Troubleshoot

Hi there , im having troubles with my a5 2017 i bought it 13 months ago , so its out of factory warranty.
Well , thats the problem, i cant use it with SIM i tried to flash a official stock rom , i made it well but it still not working.
Its working with official imei , its not corrupt or something like that. its the same on the box and the backside sticker.
When i try to search for mobile networks it searches for some minutes with no results.
Help!

Aliwu said:
Hi there , im having troubles with my a5 2017 i bought it 13 months ago , so its out of factory warranty.
Well , thats the problem, i cant use it with SIM i tried to flash a official stock rom , i made it well but it still not working.
Its working with official imei , its not corrupt or something like that. its the same on the box and the backside sticker.
When i try to search for mobile networks it searches for some minutes with no results.
Help!
Click to expand...
Click to collapse
Its most likely a hardware issue as you tried flashing stock firmware. Did you try flash stock modem?

Related

[q] help emergancy calls only site doesnt have information needed

Hey ive had a rooted s3 for a while now it was already done when i bought it months ago..... i decided to put 4.3 on it i thought i did it all right but obviously ive done something wrong since it now says emergancy calls only, i have tried;
taking the battery and sim out
wiping all user data and cache via the up, power and home button
I have reinstalled numerous software BTU and international and past firmwares, tried using the csc changer cause at one point it was KOR not BTU, ALL ROMS BEING STOCKS....
I have recently tried installing a Custom rom..... CYANOAGEN 4.3 (stable) which im under the impression is a custom mod anyways?????
Now i am completly puzzled ive searched numerous sites including this one but noone ever seems to have quite the same information i have on the device status or situation explanations so i thought id put this out there... erm im in the uk if that matters... and a fast response will be most helpful i will be attaching me device info screen shots OH AND BTW I HAVE A SIGNAL AND IT ASKS ME WHEN I TURN THE PHONE ON 02 MONTHLY, 02 PAY AND GO AND TESCO WHICH I AM ON GIFFGAFF (GIFFGAFF WORKS ON THE O2 NETWORK FOR THOSE OF YOU THAT DONT KNOW)
carlgallagher said:
Hey ive had a rooted s3 for a while now it was already done when i bought it months ago..... i decided to put 4.3 on it i thought i did it all right but obviously ive done something wrong since it now says emergancy calls only, i have tried;
taking the battery and sim out
wiping all user data and cache via the up, power and home button
I have reinstalled numerous software BTU and international and past firmwares, tried using the csc changer cause at one point it was KOR not BTU, ALL ROMS BEING STOCKS....
I have recently tried installing a Custom rom..... CYANOAGEN 4.3 (stable) which im under the impression is a custom mod anyways?????
Now i am completly puzzled ive searched numerous sites including this one but noone ever seems to have quite the same information i have on the device status or situation explanations so i thought id put this out there... erm im in the uk if that matters... and a fast response will be most helpful i will be attaching me device info screen shots OH AND BTW I HAVE A SIGNAL AND IT ASKS ME WHEN I TURN THE PHONE ON 02 MONTHLY, 02 PAY AND GO AND TESCO WHICH I AM ON GIFFGAFF (GIFFGAFF WORKS ON THE O2 NETWORK FOR THOSE OF YOU THAT DONT KNOW)
Click to expand...
Click to collapse
neck in a forum first you must leave your full imei better image shows where your imei appears. second if you are still with this problem and you still have CM flashea this recovery https://www.dropbox.com/s/1aj3lvxc3l4yepa/Ariza_patch_06_BoRoU.zip
Thankyouoooooouuuuuuu!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!
THANK YOU SO MUCH YOUCVE SAVED ME AHA ITS WORKING PERFECT AGAIN I READ ABOUT THE ARIZA PATCH BUT DIDNT REALISE IT HAD TO BE INSTALLED WITH CM THANYOU OS MUCH!!!!!!
P.S IS THERE AWAY OF ME GOING BACK TO ANDROID IF I ANTED TO OR IM A STAYING WITH CM FOR GOOD NOW?
THANKYOU ABSOLUTE LEGEND:good::good::good::good::good::good::good::good::good::good::good::good::good::good::good:
carlgallagher said:
THANK YOU SO MUCH YOUCVE SAVED ME AHA ITS WORKING PERFECT AGAIN I READ ABOUT THE ARIZA PATCH BUT DIDNT REALISE IT HAD TO BE INSTALLED WITH CM THANYOU OS MUCH!!!!!!
P.S IS THERE AWAY OF ME GOING BACK TO ANDROID IF I ANTED TO OR IM A STAYING WITH CM FOR GOOD NOW?
THANKYOU ABSOLUTE LEGEND:good::good::good::good::good::good::good::good::good::good::good::good::good::good::good:
Click to expand...
Click to collapse
Assuming by going to 4.3, your IMEI changed to EFS v2. If you ever want to go back to stock just flash XXEMG4 (4.1.2) or any 4.3 stock firmware

[Q] G900F Network registration problem after flashing

Hi I have international version of S5 G900F. I flashed the phone with UK BTU stock rom. Now the problem is I cannot connect to the Network.
I tried going to Settings->More Networks -> Network Operators -> Select automatically . It took 5-10 mins to search but cannot connect.
Sim is not locked as it was working before I flashed the stock rom. also I read somewhere in internet that once the phone is region unlocked, it is permanently unlocked to use any other country sim. I don't know the original region of my phone but I bought it in Uk from 3rd party dealer not from any carrier.
I can think of two thing at the moment. It should be either regional locked again, but it does not prompt any thing to activate or enter pin or anything like that. or it should be wrong modem.
Is there a way to find if the phone is region locked ?
and is there a way to find correct region of the phone ?
the label on the box was removed so I cannot find from the box as well.
Thanks in advance.
I still haven't fixed this problem. Could someone suggest how to fix?
I've attached some screenshots with my phone info.
first image shows NETWORK:UNBLOCKED and IMEI Certi: PASS
-> I think this means, the phone is not blocked by network, and IMEI certificate has passed so it's not stolen or lost claimed phone.
another screenshot is the Firmware and CSC code/country information,
-> this means, this phone is build to sell in UK, so UK sim should unlock the regional lock.
Also the phone was working fine before I installed stock rom which I dowloaded from sammobile.
in the sceenshot, one of the network is connected but it says emergency call only because it cannot register to the network.
It is not sim lock also, because when I put T-mobile sim it does not ask for pin to unlock also.
what is wrong here. any idea guys? xda supposed to be the biggest android forum and samsung s5 is one of the most popular phone at the moment, isn't there anyone who have similar problem and solved? or atleast give some reason this cannot be fixed at all.
does the TMobile sim work? does it register with the network? If yes, then call the provider (of the other sim) and ask what's going on. Maybe you have a broken sim?
blesio said:
does the TMobile sim work? does it register with the network? If yes, then call the provider (of the other sim) and ask what's going on. Maybe you have a broken sim?
Click to expand...
Click to collapse
I've tried with Orange sim, and it still cannot register to the network. When I put the orange sim, it pop up a dialogbox asking to choose a network provider, there was two options, T-mobile and orange. So it is detecting the sim, but it cannot register.
And also, I tried my sim in another phone, and my sim works in another phone without any problem.
Did you try to flash the firmware again, and then after that restore factory defaults?
blesio said:
Did you try to flash the firmware again, and then after that restore factory defaults?
Click to expand...
Click to collapse
Yes I did, still it didn't work. I emailed samsung customer service with the problem, and they asked me to restore factory defaults.
I did that again but didn't work.
I tried one custom ROM as well. same problem in that rom.
You're rooted? If yes then there might be problem with the modem part of the ROM, can you install the official one part ROM and try with that?
blesio said:
You're rooted? If yes then there might be problem with the modem part of the ROM, can you install the official one part ROM and try with that?
Click to expand...
Click to collapse
I've installed stock rom several times, and several different versions( from here: http://www.sammobile.com/firmwares/1/?model=SM-G900F&pcode=0 ). Rooted several times, installed modem.bin files several times from many custom rom/ stock rom. None of them worked. I tried installing modem.bin when not rooted as well. And all the attempt failed.
I did everything I could possibly think of , Then I posted the question in the forum.
You have the IMEI ??!? Or it is lost?? Then only per efs-backup…
Or sim is broken…
Gesendet von meinem SM-G900F
lwiss said:
You have the IMEI ??!? Or it is lost?? Then only per efs-backup…
Or sim is broken…
Gesendet von meinem SM-G900F
Click to expand...
Click to collapse
I have imei , and sim is working fine, as I tested my sim in another phone.
uktel3315 said:
I have imei , and sim is working fine, as I tested my sim in another phone.
Click to expand...
Click to collapse
I'm having the same problem, but with G900H. I have stock firmware, rooted and everything's working fine until suddenly, I have no network. I restart the phone and get network again but only for a couple of minutes.
Sent from my SM-G900H using XDA Free mobile app
Any update?
XanoZuke said:
Any update?
Click to expand...
Click to collapse
Sry XanoZuke, I could not do anything to fix this, so I returned the phone and got another handset. I now have Exynos Octa-core version. Found snapdragon version is more power efficient. My phone gets heated very quickly.
uktel3315 said:
Sry XanoZuke, I could not do anything to fix this, so I returned the phone and got another handset. I now have Exynos Octa-core version. Found snapdragon version is more power efficient. My phone gets heated very quickly.
Click to expand...
Click to collapse
Don't worry, I found out that the motherboard was water damaged (the irony of life....), so a bought an LG G3.
Regarding the Exynos chip, I'm never buying anything exynos ever again. The performance is not as solid as Snapdragon and it gets heated really fast. Still, thanks for your reply! ?
Sent from my LG-D855 using XDA Free mobile app
uktel3315
Click to expand...
Click to collapse
So sad case remain unsolved, Got almost the same issue, Flashed 1st and last official firmware and custom rom without success NO NETWORK SIGNAL. No IMEI - Null regitered 15 zeros no efs backup etc.
Model : SM-G900S
ROM: XtrStoLite
edreab86 said:
So sad case remain unsolved, Got almost the same issue, Flashed 1st and last official firmware and custom rom without success NO NETWORK SIGNAL. No IMEI - Null regitered 15 zeros no efs backup etc.
Model : SM-G900S
ROM: XtrStoLite
Click to expand...
Click to collapse
have you found a solution yet? i have the exact same problem and have tried the same solutions as you listed...
have you found a solution yet? i have the exact same problem and have tried the same solutions as you listed...
Sorry i end up selling the phone as is..
Same deal
My g900f has no mobile services sims fine
I have the same problem.
Cannot connect to network after flashing new ROM. Since then I tried about 10 different original roms and couple custom roms. Number of different MODEMs and BOOTLOADERs but with no joy. SIM card works fine in different phone.
Also I tried to load different CERT files and QCN with Z3X Box but that didn't help either.
I've tried *#0011# command here are results:
with LTE/WCDMA/GSM auto-connect:
imgur.com/i69HCBM
with WCDMA only:
imgur.com/QPbvKHG
and GSM only:
imgur.com/8InhQWQ
It seems that GSM is not working at all.
At this stage I run out of ideas and probably gonna get rid of the phone as it is or use it as pimped-out ipod touch
(sorry for messed up links but I can't post to outside sites yet)

Samsung Galaxy S4 Wi-Fi is ‘Stuck On’ Turning On

Please Anyone Help Me ... To Solve This Problem ... Wifi And Bluetooth Not Working ....
What Can I Do For This ... Any Hardware Issues ? Or Software Issues ?
jack_ssl said:
Please Anyone Help Me ... To Solve This Problem ... Wifi And Bluetooth Not Working ....
What Can I Do For This ... Any Hardware Issues ? Or Software Issues ?
Click to expand...
Click to collapse
Maybe a wrong modem version, or damaged wifi config files.
Workaround for Wifi (need root):
With a File Explorer.
Navigate to /data/misc/wifi
Rename wpa_supplicant.conf to wpa_supplicant.conf.old
Delete wpa_supplicant.bak.conf
Reboot device.
If you need restore the saved networks, check this after reboot.
You will have three wpa_supplicant's.
Enable and disable your wifi for recreate files.
Open the wpa_supplicant.conf.old file, and copy the lines between network and the end of file.
Example:
Code:
network={
ssid="MY_WIFI"
psk=aaaaaaaaaaaaaaaaaaaaaa
key_mgmt=WPA-PSK
priority=662
autojoin=1
usable_internet=0
skip_internet_check=0
}
And past in end of new wpa_supplicant.conf.
The same thing happened to my wifes gt-i9500 a few months ago. Her phone had to have the wifi and blue tooth hardware parts replaced.
Sent from my GT-I9500 using Tapatalk
reverendhtc said:
The same thing happened to my wifes gt-i9500 a few months ago. Her phone had to have the wifi and blue tooth hardware parts replaced.
Sent from my GT-I9500 using Tapatalk
Click to expand...
Click to collapse
Then It Works ? After Replace Wifi And Bluetooth ? Works
Yes, I originally took it to a Samsung service centre who wanted to replace the motherboard for an expensive price. I then took it to a normal phone repair shop who replaced the wifi and bluetooth hardware components for a fraction of the price. They did not use original samsung parts but her phone is now working fine for both wifi and bluetooth.
Please Help Me
reverendhtc said:
Yes, I originally took it to a Samsung service centre who wanted to replace the motherboard for an expensive price. I then took it to a normal phone repair shop who replaced the wifi and bluetooth hardware components for a fraction of the price. They did not use original samsung parts but her phone is now working fine for both wifi and bluetooth.
Click to expand...
Click to collapse
So You Are Say : Trying To Change Hardware ....So , No Software Problem .... What Next ?
jack_ssl said:
Please Anyone Help Me ... To Solve This Problem ... Wifi And Bluetooth Not Working ....
What Can I Do For This ... Any Hardware Issues ? Or Software Issues ?
Click to expand...
Click to collapse
Wipe cache/data
Flash recomended and stable Lollipop versions (DBT, UK, Hong Kong)
Wipe cache/data
Done!!!
Same happend to one of my devices and that how i managed the problem!
No need root for that issue!
Thank You So Much
vforvlive said:
Wipe cache/data
Flash recomended and stable Lollipop versions (DBT, UK, Hong Kong)
Wipe cache/data
Done!!!
Same happend to one of my devices and that how i managed the problem!
No need root for that issue!
Click to expand...
Click to collapse
Already I Did Cache / Data
Flash My Data ... Everything i Did ... But Except stable Lollipop versions (DBT, UK, Hong Kong)
Now I Will Try ..... But Already I Am IN Indian Version ... Anyway Can I Overwrite INdian Version ...
Reply Me .... Thanks For Reply ....
jack_ssl said:
Already I Did Cache / Data
Flash My Data ... Everything i Did ... But Except stable Lollipop versions (DBT, UK, Hong Kong)
Now I Will Try ..... But Already I Am IN Indian Version ... Anyway Can I Overwrite INdian Version ...
Reply Me .... Thanks For Reply ....
Click to expand...
Click to collapse
Yes, you can
I forgot to mention, on my wifes phone it was getting very hot when charging. Basically there was a lot wrong with her phone. So as other members have mentioned, try the software first you may be lucky.
Sent from my GT-I9500 using Tapatalk
Hey man I had the same problema I got a Galaxy s4 i9500 on friday from a friend it was almost new, but wifi wasn't working and bluetooth he didn't notice, I flashed russian lollipop, indian and honk Kong, some módems nothing worked even downgraded to kitkat and rooted to edit the wifi file mentioned before in this thread and build.prop too,
I fixed it, it was kindda silly for me the bluetooth and wifi antenna were kindda loosy, I took apart the pone a Little, on the back I removed all the screws, and with a tool opened it, the back part the one with the screws has the antenna and the bluetooth they are encased in that plastic part if you're looking the phone from the back it would be left top part almost, and you can try squeezing the phone a lil bit in that part, after putting it back togheter I just squeezed it a lil bit and the problem was fixed so it might be a hardware issue in this case it was kindda loosy
If this is your first time flashing lollipop..just flash it twice and ur problem is gone..dont forget to wipe after first flash..
wifi issues
Hi everyone!
When i flash the rom detects the wifi but the next day was no longer detected. Turn off and turn on the wifi and nothing it stays searching and shows no network. I tried with the official rom, cyanogenmod, GE but no luck.
I tried that said in post # 2, but nothing.
Any ideas? i'm using S4 GT-i9505

No phone calls?

Hey guys, I come here very often and now I'm going to have to open this thread because I've seen absolutely no posts about my problem..
My S6 Edge+ is currently unable to make any calls and I don't know why..:crying: the strange part is that I can still send text messages and use my SIM's mobile data... Another weird thing is that whenever I reboot the phone, my WiFi passwords are forgotten..
Can any one help me? I'm currently running android 6.0.1 and I am considering downgrading it to 5.0.1 to see if it solves the issue...
Still needing help..
No one?? I really need some help since I've tried 4 different roms and modems ano nothing seems to work....
Have you wiped everything and then flashed a stock rom?
/CK
CyberDrag0n said:
Hey guys, I come here very often and now I'm going to have to open this thread because I've seen absolutely no posts about my problem..
My S6 Edge+ is currently unable to make any calls and I don't know why..:crying: the strange part is that I can still send text messages and use my SIM's mobile data... Another weird thing is that whenever I reboot the phone, my WiFi passwords are forgotten..
Can any one help me? I'm currently running android 6.0.1 and I am considering downgrading it to 5.0.1 to see if it solves the issue...
Click to expand...
Click to collapse
Which variant do you have and which MM firmware did you flash? Check your modem, imei, network operator etc and provide that info here.
Also wifi password IMO related with
Code:
ro.securestorage.support=true
this line in build.prop. I would suggest you to add this line under 'ADDITIONAL_BUILD_PROPERTIES' in build.prop but assume you havent rooted your device. If have, add it.
Powered by Elektrik
I've downgraded to 5.1.1 and it didn't work, I have the international version of the s6 edge plus and now I'm looking for a new ROM to test to see if I can solve it.. I've checked my imei in two different websites and on imei.info it comes clear, but the other site gives me a blacklisted warning, which makes me think since I bought it online second hand... it probably was reported stolen or lost and now it's blocked... which ise rather inconvenient. .
If I go to SIM Card Status it says "Not Available" everywhere, but on imei information it says my imei and on IMEISV the value is 01. It's network unlocked and right now I'm about to flash a new ROM, probably stock..
Hello, I have the same problem at boot after I receive the call when making a call nothing remains of numbering you have a solution? thank you cordially guillaume
Hi guys, I know this is a really old thread but I'm here just to say that the problem was with the IMEI, it was blacklisted..
I changed it with a friend and then everything worked fine..
Thanks for you help mates!
CyberDrag0n said:
Hi guys, I know this is a really old thread but I'm here just to say that the problem was with the IMEI, it was blacklisted..
I changed it with a friend and then everything worked fine..
Thanks for you help mates!
Click to expand...
Click to collapse
how to check for imei blacklisted ?
natrajshekarj said:
how to check for imei blacklisted ?
Click to expand...
Click to collapse
You can go to imei.info and there's a paid check.

SM-G935FD wont connect to network/carrier after routing to Nougat 7.0 with odin

Please someone help me, i was updating my s7 edge duos to 7.0 after that i cannot join network, wifi works well and got signal also but cant connect for some reason shows Emergency Calls Only i tried many roms and with every single i got no network, nothing helps.. when i check dial 06# my both imeis are OK and nothing is wrong with it..
maybe i flashed wrong modem or something and how can i repair it now? please help
Provide more details of your phone , are you using original stock rom ? Or rooted custom rom? You may try changing sim , or wiping cache partition in recovery , if that doesnt work only option is factory reset, also tell if your update was successful without errors ? And use the same firmware as your current region , and also check if your phone is carrier locked , then you need to unlock it to work or use the same carrier firmware.
bachimpek said:
Please someone help me, i was updating my s7 edge duos to 7.0 after that i cannot join network, wifi works well and got signal also but cant connect for some reason shows Emergency Calls Only i tried many roms and with every single i got no network, nothing helps.. when i check dial 06# my both imeis are OK and nothing is wrong with it..
maybe i flashed wrong modem or something and how can i repair it now? please help
Click to expand...
Click to collapse
Hi Bachimpek
Seems like you need to patch your certificate , try to downgrade to 6.0.1 and see if phone can connect to network if that doesnt work then you need to patch your certificate with a box like "z3x" or "octipus"
Sent from my SM-G930F using Tapatalk
shah22 said:
Provide more details of your phone , are you using original stock rom ? Or rooted custom rom? You may try changing sim , or wiping cache partition in recovery , if that doesnt work only option is factory reset, also tell if your update was successful without errors ? And use the same firmware as your current region , and also check if your phone is carrier locked , then you need to unlock it to work or use the same carrier firmware.
Click to expand...
Click to collapse
I have flashed to stock rom from sammobile, for region serbia, and after that i changed to many different countryies, nothing helps, i wiped cache and factory reset, nothing of that helped me , it was sucessfull without errors, my carrier is not locked because i used all carriers in previous android 6.0.1
ironman101 said:
Hi Bachimpek
Seems like you need to patch your certificate , try to downgrade to 6.0.1 and see if phone can connect to network if that doesnt work then you need to patch your certificate with a box like "z3x" or "octipus"
Sent from my SM-G930F using Tapatalk
Click to expand...
Click to collapse
already tried doesent helping downgrade, can you give me proper links to download that programs, or i need to go to service to be finished with jtag?
bachimpek said:
already tried doesent helping downgrade, can you give me proper links to download that programs, or i need to go to service to be finished with jtag?
Click to expand...
Click to collapse
So , you want to downgrade ? Just download a complete firmware file with all files included and flash it with odin, it will downgrade , if it solves the problem , maybe stay with it instead of nougat.
shah22 said:
So , you want to downgrade ? Just download a complete firmware file with all files included and flash it with odin, it will downgrade , if it solves the problem , maybe stay with it instead of nougat.
Click to expand...
Click to collapse
tried doesent help.. after that i set to custom rom.. problem still appears.. can it be fixed without BOX?
bachimpek said:
tried doesent help.. after that i set to custom rom.. problem still appears.. can it be fixed without BOX?
Click to expand...
Click to collapse
Don't seems so , you need to repair it in z3x or octoplus box , but if network was working well before update to nougat , it should work when you downgraded again to 6.0.1 , so i guess its some certificate issue , but you may check some setting and try to search networks manually and try changing network type to 3g/2g , 3g only , 2g only. Also try checking different sim cards. If it did'nt fix then you have to repair by box. Good luck
Sent from my S7 Edge using XDA Labs
Hello, same problem samsung s7 edge SM-G935FD. restarted my phone and no network. My region is Lithuania and i cant find firmware of my country, what to do ?

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