[Q] [URGENT SITUATION ] SM-N9150 China version not receiving signal "no service"
HELLO, I got Note edge china version Model SM-N9150 not receiving signal and sim card doesn't show in notification toggle, it was working good after I update "nv item" I lost the signal from the phone, the IMEI is normal and baseband also there but the phone cannot receive any signal , PLEASE HELP ME, I just bought. How to solve this problem??????????
take it to the service centre
Flash stock firmware package with Odin. DL from Sammobile.com or samsung-updates.com . If you don't know, many guides "how to" by simple search. Best of luck.
sanacit said:
HELLO, I got Note edge china version Model SM-N9150 not receiving signal and sim card doesn't show in notification toggle, it was working good after I update "nv item" I lost the signal from the phone, the IMEI is normal and baseband also there but the phone cannot receive any signal , PLEASE HELP ME, I just bought. How to solve this problem??????????
Click to expand...
Click to collapse
The last zero 0 was until now FOR Demo phones. If samsung has not change the rule with note edge i think you bought an Demo phone.... For that to work you need to replace the mainboard and to buy antenna cable)
Hope I'm wrong....
Thanks, I did it but I still have the same problem nothing happened
UpInTheAir said:
Flash stock firmware package with Odin. DL from Sammobile.com or samsung-updates.com . If you don't know, many guides "how to" by simple search. Best of luck.
Click to expand...
Click to collapse
Thanks for help, how to replace the mainboard? and what's "antenna cable"?
calinormy said:
The last zero 0 was until now FOR Demo phones. If samsung has not change the rule with note edge i think you bought an Demo phone.... For that to work you need to replace the mainboard and to buy antenna cable)
Hope I'm wrong....
Click to expand...
Click to collapse
As you wrote - signal lost after update "nv item" - do you remember what you change? back to previous version should help
did you make back up of changed datas?
did you try factory reset?
try other simcard - maybe simcard died?
Related
The provider specific SIM menu is available, but the tablet shows no signal. Even when it shows one, the signal disappears the moment I try to make a call or am about to receive one. The caller can still hear ringing while the tablet lists the call as missed call.
My father's Galaxy Tab 2 7" automatically tried updating through wifi but failed (I presume), and the SIM functions stopped working.
After many attempts I updated it through OTA to the latest firmware, shown as PDA:NA3 / PHONE:LK1 / CSC:NB1 (INU) in Kies, and the Android version was listed as 4.1.2., but the problem persisted.
I tried to wipe cache. It didn't sort the problem.
Then I Installed CWM 6.0.7 and Cyanogenmod 10.1 (JB 4.2.2) using this tutorial: wiki.cyanogenmod.org/w/Install_CM_for_p3100
Still it can't make or receive calls.
Baseband version is listed as p3100ddclk1
What to do?
Is this a hardware or firmware problem?
Hey brother,
Even I am facing the same order on my tab but in a different way. I can recieve signal for the carrier Tata Docomo but other carrier are showing any sign of life
But sometimes while on tata docomo , I lost signals while using data or when I got a call. And one more thing, I was on a trip to a hill station and there I was getting signals from Vodafone perfectly (my main service provider). But when I came back from there I ain't receiving any peice of signals from vodafone and Docomo is working as usual with few network losses during the day.
PS.- I ain't received any solution yet, still sticking up with that problem.
PPS.- The tab I brought is in used condition with the fact that the tab has that problem in it. (I need not to pay much lol)
Btw I think if we can flash new firmware (official) with odin with modem file, It may sokve our problem. TRY FLASHING FIRMWARE, I cant as I am low on speed
xanubhavx said:
Hey brother,
Even I am facing the same order on my tab but in a different way. I can recieve signal for the carrier Tata Docomo but other carrier are showing any sign of life
But sometimes while on tata docomo , I lost signals while using data or when I got a call. And one more thing, I was on a trip to a hill station and there I was getting signals from Vodafone perfectly (my main service provider). But when I came back from there I ain't receiving any peice of signals from vodafone and Docomo is working as usual with few network losses during the day.
PS.- I ain't received any solution yet, still sticking up with that problem.
PPS.- The tab I brought is in used condition with the fact that the tab has that problem in it. (I need not to pay much lol)
Btw I think if we can flash new firmware (official) with odin with modem file, It may sokve our problem. TRY FLASHING FIRMWARE, I cant as I am low on speed
Click to expand...
Click to collapse
@xanubhavx Where can I download the modem file for P3100?
asraf5285 said:
@xanubhavx Where can I download the modem file for P3100?
Click to expand...
Click to collapse
I am not sure about the Model file alone but you can download whole firmware from sammobile.com, they have firmware of all Samsung devices region wise, just login to enjoy better speed.
Hope this helps.
xanubhavx said:
I am not sure about the Model file alone but you can download whole firmware from sammobile.com, they have firmware of all Samsung devices region wise, just login to enjoy better speed.
Hope this helps.
Click to expand...
Click to collapse
i already download the firmware for Malaysia and how to get the modem file from it? Should I extract it and search in?
Hi i hope someone can help. My phone has been working fine for 2 weeks, and today it just cut off the network. There is no network problems in my area and I've tried another sim card the problem is it says emergency calls only and won't connect to a network it just says try again later with multiple sims. However with one sim the Internet works but the cell won't make a call or text? Please advise also non rooted g920f
Quinnaay said:
Hi i hope someone can help. My phone has been working fine for 2 weeks, and today it just cut off the network. There is no network problems in my area and I've tried another sim card the problem is it says emergency calls only and won't connect to a network it just says try again later with multiple sims. However with one sim the Internet works but the cell won't make a call or text? Please advise also non rooted g920f
Click to expand...
Click to collapse
me too its happened to me on 18-July-2015 and my
- non rooted g920f
- IMEI changed to 350000000000004
- simcards not working ( not registered on network )
- i have signal bars without simcard !
- and when i reainstalled rom i found updates about 66mb i dont know because of updates or e have big prob here
any solution plz
Maybe a defective SIM card.
Perhaps a temporary network fault.
Your IMEI is corrupted then you are cut off the network!
If you have EFS (IMEI) partition backup try to restore it , for example by this app and you are done!
If you don't have backup of EFS partition you need to send phone to samusng service. (only samsung can't restore your original IMEI number)
regards!
Correct the phone was blocked and i've returned it to the seller. Ebay sucks.
Quinnaay said:
Correct the phone was blocked and i've returned it to the seller. Ebay sucks.
Click to expand...
Click to collapse
this is my screen now all day
samsungrumors.net/wp-content/uploads/2015/05/s6.jpg
i will return this crap to be fixed
if not i will rob the seller............................. or kill him
Any help ?
My Samsung s6 sometimes picks up my carrier but when i make a call it goes to emergency calls only ? i am sometimes able to send a text but again it says emergency calls only after the text sends. I have tried many other sim cards and the same problem, I have also checked my IMEI and its fine.
Any help here guys ? Thanks
s6 emergency call only
imei ok ... baseband ok .... but mobile is emergency call only ... please give me solution ???????????/////
S6 g920p
Hello i fixed s6 sprint g920p i install 5.1.1 modem.bin
On marshmallow and now no emergency call this is the only solution:laugh::good:
Numan1122 said:
Hello i fixed s6 sprint g920p i install 5.1.1 modem.bin
On marshmallow and now no emergency call this is the only solution:laugh::good:
Click to expand...
Click to collapse
So can you make calls and imei fixed ?
Numan1122 said:
Hello i fixed s6 sprint g920p i install 5.1.1 modem.bin
On marshmallow and now no emergency call this is the only solution:laugh::good:
Click to expand...
Click to collapse
i tested many modem but not worked, do you have another solution??
Is it giving a message when you remove your SIM card from running S6 ? asking for reboot or something like that I can't remember correctly ? If it's not giving the message seems like something wrong with your SIM bay ?
hello please can someone help me with my snmsung s6 I have problem with the network shows emergency calls only
Use z3x or chimera try to reset network or reset efs ..
if u want chimera login then inbox
Hello, in december, one day suddenly i was in the car and i was driving through a zone with a low signal, from that moment, my S6, losed the signal, and died (?). Today, are 2 months that i don't have signal. I have also tried different sim cards, but nothing. After i had this problem, i did a factory reset from the phone, i put a different sim card in the phone and it worked, i saw the carrier, and i received the sms with the internet configuration, after 1 minute i lose the signal, after that, again, the phone didn't wanted to receive signal. i also tried with a romanian SIM (i am from Italy), but nothing, i see the R near the signal bars. if i go in settings and i search the network operators, the phone finds all, but i can't connect (the SIMs in another S6 works). my phone originally had a brand ROM (WIND Italy), so first through Odin i re-flashed it, but nothing. i also tried to flash the fw with no-brand, but nothing. I've tried absolutely all, i did reboot, flight mode, factory reset, Odin, changed sim, i don't know what to do. my model it's the SM-G920F, i have the 5.1.1, i never did root or flashed custom ROMs, the IMEI it's okay. if i go in ''SIM card status'', in Signal strength, the signal moves, but in Service state it displays "Out of service". The curious fact is that, before this happens, the phone worked for 6/7 months normal, without network problems, after i started using this operator (WIND), after a few weeks, it started that crazy story. what can i do? :crying::crying:
Check your imei *#06#
and whats your model
and knox is it still 0x0 or 0x1
tazaga said:
Check your imei *#06#
and whats your model
and knox is it still 0x0 or 0x1
Click to expand...
Click to collapse
checking the IMEI in the keypad, it's the same of the box, my model it's the SM-G920F, my Knox counter it's 0x0
alex3105_ said:
checking the IMEI in the keypad, it's the same of the box, my model it's the SM-G920F, my Knox counter it's 0x0
Click to expand...
Click to collapse
All i see is updating to official marshmallow and hope for the best or visite samsung for fix dont root keep your knox alive...i recommand to visite samsung to fix it because if you try something you can loose knox and you may not fix it after all...viste samsung they will fix it
tazaga said:
All i see is updating to official marshmallow and hope for the best or visite samsung for fix dont root keep your knox alive...i recommand to visite samsung to fix it because if you try something you can loose knox and you may not fix it after all...viste samsung they will fix it
Click to expand...
Click to collapse
thanks, should i wait for the italy Marshmallow update or install the other already existing? because here in Italy, Vodafone has released the update, should i install this one, or maybe the UK or another? i am on the no brand fw.
Flash any stock 6.0.1 from Sammobile(it won't change Your knox counter) and if it doesn't work take it to Your carrier seller or samsung service repair center. They both will either fix it for free of give You a new one. Mostly odin reflash fixes all problems.
ProtoDeVNan0 said:
Flash any stock 6.0.1 from Sammobile(it won't change Your knox counter) and if it doesn't work take it to Your carrier seller or samsung service repair center. They both will either fix it for free of give You a new one. Mostly odin reflash fixes all problems.
Click to expand...
Click to collapse
okay, in past, the flashes i did, i just flashed on Odin without doing factory reset (from system or recovery), or deep clean, should i this time? because updating the fw, it updates the modem part, so i think that i don't have to reset it (?), i don't know, also after i did the update, if the network doesn't works, can i downgrade back to 5.1.1 simply flashing again the fw?
Just make sure you are updating the right rom for your model...dont use another rom for another model...this can get you problems after some times...lets say you flashed vod rom on XEF this will give you ptoblems later mybe loosing imei or signal....and if update ota you get updates for VOD not XEF...its just not right...my advice update right rom for you model look sammobile
tazaga said:
Just make sure you are updating the right rom for your model...dont use another rom for another model...this can get you problems after some times...lets say you flashed vod rom on XEF this will give you ptoblems later mybe loosing imei or signal....and if update ota you get updates for VOD not XEF...its just not right...my advice update right rom for you model look sammobile
Click to expand...
Click to collapse
i chose the French unbranded one, i'm waiting the download to finish
alex3105_ said:
i chose the French unbranded one, i'm waiting the download to finish
Click to expand...
Click to collapse
Let us know how it goes...i have the same problem and didnt had any succes with MM XEF .... the phone works only on 2g and cant connect on 3g or 4g
vraciu4you said:
Let us know how it goes...i have the same problem and didnt had any succes with MM XEF .... the phone works only on 2g and cant connect on 3g or 4g
Click to expand...
Click to collapse
sorry man, it's the same, but at least you have 2G network, i don't have any, i can't connect, i have "only emergency calls". now i'm on the XtreStoLite 3.0 MM rom, but it's always the same. i'm so sad, i will use this phone as tablet
alex3105_ said:
sorry man, it's the same, but at least you have 2G network, i don't have any, i can't connect, i have "only emergency calls". now i'm on the XtreStoLite 3.0 MM rom, but it's always the same. i'm so sad, i will use this phone as tablet
Click to expand...
Click to collapse
i think the problem could be the antennas inside...but i guess the fix is to replace the entire motherboard and that is expensive
vraciu4you said:
i think the problem could be the antennas inside...but i guess the fix is to replace the entire motherboard and that is expensive
Click to expand...
Click to collapse
i don't know, but it's really strange, because when i updated to MM, i had signal for 1min, but i rebooted it immediatly thinking "if it works, works even after the reboot", but it doesn't. i'm sorry, i hope you will resolve your problem
Good morning XDA,
I'm in desperate needing help, sorry but English is not my first language.
My brother bought a S7 G930F - Exynos that was GSM locked with one company here in Brazil, so he paid a guy to unlock it.
After getting the phone back I notice that the phone now shows G930FD, when I use *#06# to see the IMEI, shows two number, as if it was Dual SIM and both numbers are different that what is written in the back of the phone and the box and the rom seem to be 6.01 but with a lot of programs pre-installed.
So I downloaded the newest ZTO stock rom from SamMobile and flashed, now the phone is on 7.0 but can't connect to the network and still show the tow differents imei numbers.
Any tips or guidance and how can I Solve this?
Thanks, TggB!
TggB said:
Good morning XDA,
I'm in desperate needing help, sorry but English is not my first language.
My brother bought a S7 G930F - Exynos that was GSM locked with one company here in Brazil, so he paid a guy to unlock it.
After getting the phone back I notice that the phone now shows G930FD, when I use *#06# to see the IMEI, shows two number, as if it was Dual SIM and both numbers are different that what is written in the back of the phone and the box and the rom seem to be 6.01 but with a lot of programs pre-installed.
So I downloaded the newest ZTO stock rom from SamMobile and flashed, now the phone is on 7.0 but can't connect to the network and still show the tow differents imei numbers.
Any tips or guidance and how can I Solve this?
Thanks, TggB!
Click to expand...
Click to collapse
Hi
I would take it back to the guy and have it fix.......
He mess up your EFS partition and who know what else
Anyhow , check this thread
https://forum.xda-developers.com/s7-edge/how-to/guide-how-to-fix-check-drk-imei-issues-t3379516
Hi respected members, I'm new here and I need your valuable assistance .
I bought S8+ and when I checked the model version in software it is showing SM-G9550 which is Chinese version not Hong Kong, but on the back of phone G955U is mentioned. For more confirmation I compared the IMEI and serial number which are mentioned on the back of phone and also showing in software information in about phone. IMEI and SN are same in about phone and on back side of phone. I also checked the carrier in downloading mode (after pressing Volume down + Bixby + Power Buttons) and carrier is VZW which is Verizon if I'm not wrong.
I'm foreigner in China and current Chinese version is creating problem in phone that no any update (current is 7.0) for my S8+ software and the latest security patch is 2017, some APPs like Facebook and Whatsapp don't show any notification etc.
I already used Hong Kong firmware in my GalaxyS7 Edge which works perfect and also have Google APPs, but Chinese version don't have Google APPs, and there is no any play store library. To solve this problem, I tried to install Hong Kong based firmware (9.0) but Odin shows error that can't create partition, after reading about this problem it seems that firmware is not compatible with current hardware.
So I want to ask these questions!
1: How I can install Hong Kong firmware in current situation or if I install G955U then will it work in China? and from where I can get unlocked firmware because I'm unable to find unlocked firmware. Reference (https://firmwarex.net/samsung-s8-sm-g955u-9-0-official-firmware/), from this link which will work in my phone?
2: If I used PIT file to install Hong Kong version then is there any security problem or my phone will work well?
3: I'm unable to find PIT file for my current problem. I also need PIT file if first option will not work.
Sorry for too long explanation.
Need your kind suggestions. Thanking you in anticipation.
My problem is seems to be same as https://forum.xda-developers.com/galaxy-s8+/help/g955u-using-g9550-firmware-t3766862
Problem solved
I have solved my problem. As mentioned in my question G955U model is using G9550 because processor is same but RAM and storage is different.
I downloaded G955U1 from SamFirm and installed it. Working fine now.
I used this phone in China and Pakistan. The main problem in G9550 I was facing, it was 4G signals strength that were very weak in China and 3G was not working but in Pakistan 3G was working fine but no 4G signal on same phone. May be that was due to different bands. But now after installing G955U1 the LTE signal strength is very strong even better than iPhone X.
Still I'm searching about it that how anyone installed G9550 in G955U as I also tried latest G9550 on same phone but I was failed.
ahsan3803 said:
I have solved my problem. As mentioned in my question G955U model is using G9550 because processor is same but RAM and storage is different.
I downloaded G955U1 from SamFirm and installed it. Working fine now.
I used this phone in China and Pakistan. The main problem in G9550 I was facing, it was 4G signals strength that were very weak in China and 3G was not working but in Pakistan 3G was working fine but no 4G signal on same phone. May be that was due to different bands. But now after installing G955U1 the LTE signal strength is very strong even better than iPhone X.
Still I'm searching about it that how anyone installed G9550 in G955U as I also tried latest G9550 on same phone but I was failed.
Click to expand...
Click to collapse
These guys will cross match the csc files to include carrier features for other country's. You can't out right install the 9550 firmware but can add bits of the csc to it. I've seen a bunch of "mutt" frankensteined devices. But don't like to get involved because stuff can go wrong real quick
TheMadScientist said:
These guys will cross match the csc files to include carrier features for other country's. You can't out right install the 9550 firmware but can add bits of the csc to it. I've seen a bunch of "mutt" frankensteined devices. But don't like to get involved because stuff can go wrong real quick
Click to expand...
Click to collapse
Agree with you. I want to add bit more that G955U is 4GB RAM and 64GB Storage but G9550 is 6GB and 128GB. Obliviously firmware check the right configuration. As per my knowledge that we need to provide right BL (Boot loader) file. I mean BL file from G955U but other files from G9550. May be I'm wrong because I didn't try for it. This combination will work?
ahsan3803 said:
Agree with you. I want to add bit more that G955U is 4GB RAM and 64GB Storage but G9550 is 6GB and 128GB. Obliviously firmware check the right configuration. As per my knowledge that we need to provide right BL (Boot loader) file. I mean BL file from G955U but other files from G9550. May be I'm wrong because I didn't try for it. This combination will work?
Click to expand...
Click to collapse
Don't know never tried
ahsan3803 said:
Hi respected members, I'm new here and I need your valuable assistance .
I bought S8+ and when I checked the model version in software it is showing SM-G9550 which is Chinese version not Hong Kong, but on the back of phone G955U is mentioned. For more confirmation I compared the IMEI and serial number which are mentioned on the back of phone and also showing in software information in about phone. IMEI and SN are same in about phone and on back side of phone. I also checked the carrier in downloading mode (after pressing Volume down + Bixby + Power Buttons) and carrier is VZW which is Verizon if I'm not wrong.
I'm foreigner in China and current Chinese version is creating problem in phone that no any update (current is 7.0) for my S8+ software and the latest security patch is 2017, some APPs like Facebook and Whatsapp don't show any notification etc.
I already used Hong Kong firmware in my GalaxyS7 Edge which works perfect and also have Google APPs, but Chinese version don't have Google APPs, and there is no any play store library. To solve this problem, I tried to install Hong Kong based firmware (9.0) but Odin shows error that can't create partition, after reading about this problem it seems that firmware is not compatible with current hardware.
So I want to ask these questions!
1: How I can install Hong Kong firmware in current situation or if I install G955U then will it work in China? and from where I can get unlocked firmware because I'm unable to find unlocked firmware. Reference (https://firmwarex.net/samsung-s8-sm-g955u-9-0-official-firmware/), from this link which will work in my phone?
2: If I used PIT file to install Hong Kong version then is there any security problem or my phone will work well?
3: I'm unable to find PIT file for my current problem. I also need PIT file if first option will not work.
Sorry for too long explanation.
Need your kind suggestions. Thanking you in anticipation.
My problem is seems to be same as https://forum.xda-developers.com/galaxy-s8+/help/g955u-using-g9550-firmware-t3766862
Click to expand...
Click to collapse
i have a similar problem too. i have a sm-g995u, i know because it is written on the back of the phone and also in the software info menu. however when i get into the AP and CSC values it says my phone is sm-9550. im currently suffering from poor network and i've currently lost signal. i mean my phone has been displaying "no service" for the past 2 days. I'm currently considering flashing another firmware but scared not to brick my device since i am a newbie with all this stuff.
my device is originally a g995u, if i flash a g995u1 firmware would it work?
what g995u1 firmware did you flash? i need help asap, ive been offline for a while because of "no signal" problem.
kkins95 said:
i have a similar problem too. i have a sm-g995u, i know because it is written on the back of the phone and also in the software info menu. however when i get into the AP and CSC values it says my phone is sm-9550. im currently suffering from poor network and i've currently lost signal. i mean my phone has been displaying "no service" for the past 2 days. I'm currently considering flashing another firmware but scared not to brick my device since i am a newbie with all this stuff.
my device is originally a g995u, if i flash a g995u1 firmware would it work?
what g995u1 firmware did you flash? i need help asap, ive been offline for a while because of "no signal" problem.
Click to expand...
Click to collapse
Yes you can install G995U1 in your phone. In my case I was also facing poor network issue, no phone call history and no live location for maps but after installing the G955U1, everything is working fine.
ahsan3803 said:
Yes you can install G995U1 in your phone. In my case I was also facing poor network issue, no phone call history and no live location for maps but after installing the G955U1, everything is working fine.
Click to expand...
Click to collapse
thanks man. i was able to flash the G995u1 firmware. However, my problem still remains, i still have no access to network. i cant seem to toggle or change network mode. its stuck on LTE/3G/2G, i suspect when i was on the road the connection to the lte was lost and failed to switch to the 3G. i see alot of people have similar issues.
i sincerely hope it is not a hardware issue like a roasted network chip...
sorry i cant use wechat because i have formated my phone. Kindly recommend any possible solutions please.
---------- Post added at 04:27 PM ---------- Previous post was at 04:24 PM ----------
TheMadScientist said:
These guys will cross match the csc files to include carrier features for other country's. You can't out right install the 9550 firmware but can add bits of the csc to it. I've seen a bunch of "mutt" frankensteined devices. But don't like to get involved because stuff can go wrong real quick
Click to expand...
Click to collapse
Any idea how i can get my network back on?? im loosing hope on the device..
:crying::crying:
kkins95 said:
thanks man. i was able to flash the G995u1 firmware. However, my problem still remains, i still have no access to network. i cant seem to toggle or change network mode. its stuck on LTE/3G/2G, i suspect when i was on the road the connection to the lte was lost and failed to switch to the 3G. i see alot of people have similar issues.
i sincerely hope it is not a hardware issue like a roasted network chip...
sorry i cant use wechat because i have formated my phone. Kindly recommend any possible solutions please.
---------- Post added at 04:27 PM ---------- Previous post was at 04:24 PM ----------
Any idea how i can get my network back on?? im loosing hope on the device..
:crying::crying:
Click to expand...
Click to collapse
I ended up just getting rid of mine in the end. Went to F model devices just to root
TheMadScientist said:
I ended up just getting rid of mine in the end. Went to F model devices just to root
Click to expand...
Click to collapse
you mean im technically screwed....:crying::crying::crying:
i just bought this device mehnnnn........ i cant believe im gonna have to sell my damn s8+ as some scrap phone.. Goddamnit
kkins95 said:
thanks man. i was able to flash the G995u1 firmware. However, my problem still remains, i still have no access to network. i cant seem to toggle or change network mode. its stuck on LTE/3G/2G, i suspect when i was on the road the connection to the lte was lost and failed to switch to the 3G. i see alot of people have similar issues.
i sincerely hope it is not a hardware issue like a roasted network chip...
sorry i cant use wechat because i have formated my phone. Kindly recommend any possible solutions please.
---------- Post added at 04:27 PM ---------- Previous post was at 04:24 PM ----------
Any idea how i can get my network back on?? im loosing hope on the device..
:crying::crying:
Click to expand...
Click to collapse
It seems that there is problem with your network chip but yeah you should make sure that your phone hardware is based on G955U. G955U (USA version) and G9550 (Chinese or HongKong version) have same processor. As I already told you that my phone hardware was G955U (Verizon version) but G9550 firmware was installed because I bought it from China. I was facing many problems like slow speed, no live tracking of location using any navigation app, no call history and poor network coverage. After checking the phone I came to know that originally phone is G955U, you should also double check your phone version especially in downloading mode. After all I installed G955U1 (unlocked version) then everything works well. If your problem is same then G955U1 should work well. I installed Android 9 version.
Furthermore if you will try to install other versions like F (Global version) then obviously you will face other problems too.
ahsan3803 said:
It seems that there is problem with your network chip but yeah you should make sure that your phone hardware is based on G955U. G955U (USA version) and G9550 (Chinese or HongKong version) have same processor. As I already told you that my phone hardware was G955U (Verizon version) but G9550 firmware was installed because I bought it from China. I was facing many problems like slow speed, no live tracking of location using any navigation app, no call history and poor network coverage. After checking the phone I came to know that originally phone is G955U, you should also double check your phone version especially in downloading mode. After all I installed G955U1 (unlocked version) then everything works well. If your problem is same then G955U1 should work well. I installed Android 9 version.
Furthermore if you will try to install other versions like F (Global version) then obviously you will face other problems too.
Click to expand...
Click to collapse
You can also read this thread on reddit
https://www.reddit.com/r/GalaxyS8/comments/fncwt5/g955u_is_using_g9550_model_version/