[Q] Galaxy S3 recieving no mobile signal - Galaxy S III Q&A, Help & Troubleshooting

Hey guys,
I've been having a problem recently that i'm rather stumped about, i've been trying to fix it for the past few days, looking pretty much everywhere on the net for a fix but this is pretty much a last resort before i take it to a random shop and have them attempt to fix it.
So basically i had a galaxy S3, it broke and a close friend of mine had one sitting around gathering dust so he gave it to me to use. The problem is that for some reason this phone refuses to get any mobile signal. It connects to my WiFi without issue however it always has no service and says it can only perform emergency calls. At first i figured it may have just been my SIM card so i've tried it with 3 different SIM cards with 3 different network carriers (I've been informed that the phone is definitely network unlocked too) i've tried to manually connect to the network through the mobile network settings but that seems to bring me no luck either. The phone was rooted and whatnot but i've attempted to flash a stock ROM onto it to see if it was a ROM issue but that seems to have done nothing to help. Now i'd consider myself rather tech savvy but i'm a novice when it comes to tinkering with mobiles so any help or advice you guys could give to possibly resolve my issue would be greatly appreciated.
After writing this and performing one last search so that i don't make a complete fool of myself i've stumbled upon modem flashing so this may be something that i attempt but i'm currently trying to figure out how it all works. If you need any more information i'll happily get back to you as quickly as i can.
Quick things to close up to save time: It's running 4.3. It has an IMEI number matching that on the box. Everything else on the phone working 100% just not able to get mobile signal. Not currently rooted.

EFS folder corruption is the usual cause of network issues, baring hardware problems.
Hundreds of similar posts, sticky in general forum.
Sent from my GT-I9300 using Tapatalk

boomboomer said:
EFS folder corruption is the usual cause of network issues, baring hardware problems.
Hundreds of similar posts, sticky in general forum.
Sent from my GT-I9300 using Tapatalk
Click to expand...
Click to collapse
After looking into it the EFS folder seems more related to IMEI issues which i do not have. As for the hundreds of other posts i've looked through plenty but many of them are unresolved, the problem is unrelated to mine or i've tried the proposed solutions inside. I've been told the phone worked perfectly, he just switched it out because he had a note to use instead. So i'm not sure if it'd be a hardware issue and i'm not exactly sure of how to diagnose that either. However, if you know of a post that has a lot of proposed solutions i'd be more than happy to read through it.

Related

No signal problem?

Hello, recently I've been getting a no signal problem with my S2 running SuperNexus ROM. Basically, I have no signal. I have a IMEI (I checked online, and it's legit) and I have a efs folder backed up from when the signal was working.
This happened to me already, and It was fixed by reflashing SuperNexus. Not this time.
How can I get signal back? The phone is unlocked. Shall I restore my old efs? Also, when I search for networks it says "Error while searching for networks".
Please help Any help is appreciated.
THE SOLUTION WAS:
Install https://play.google.com/store/apps/details?id=com.helroz.GSII_Repair&hl=en
Do step 1, and step 2. After step 2, reboot. Problem is fixed.
Either you factory reset & restore or you flash stock.
Are you sure it happened overnight?
Check the supernexus thread to see if this is a known issue.
Sent from the little guy
I checked the supernexus thread, and I didn't find anything. Also, I'm pretty sure it happened overnight. It happened like that the last time too. Also, I kinda want to avoid flashing more stuff. I flashed enough already. Can't be bothered to waste 30+ minutes getting everything configured again in settings.
I put my SIM into another phone, and a different SIM into my phone. On the other phone, I can call and I have signal, so not a SIM problem. Now, this is the stupid part: the other SIM works well on my phone! I get signal and I can call etc. so its not a phone problem.
What is this? So is it just my SIM can't work on my phone? I never saw anything like this! Anyone can help?
Network locked.
Sent from the little guy
gastonw said:
Network locked.
Sent from the little guy
Click to expand...
Click to collapse
What does that mean? And what can I do about it? I tried other SIMs from other networks on my phone, all work fine, and from my network, orange too.
Maybe your SIM is f#@$/d up.
I dunno, if you don't wanna come across these issues flash stock.
Sent from the little guy
I'm gonna try my luck with stock and then flash SuperNexus again. Also, how can my SIM works with other phones, but not with mine anymore? I don't really want to flash stock and then SuperNexus again, because I'm pretty sure it's just gonna come back again, like last time. Last time the solution was simple. I want this to be done and over with. My SIM is 4 years old, so maybe I should go to EE (as that's what orange is called now) and ask for a new SIM? I don't know :/ Also, what did you mean by network lock?
Try galaxy sim unlock just for kicks.
You could also ask for a new SIM, yeah.
Sent from the little guy
I tried Galaxy S2 ulock by chainfire, and it said that the unlock code is a few 0's. Does that mean anything?
I installed a few more unlocking things, and stuff related to it. I installd SGII_Repair, and after r/w mounting efs, I got signal back Such a weird solution! I kinda want to keep this thread going, as I don't know why that happened.... twice. I want to avoid this kind of problem, so I would like to find the source of it. If anyone can say something, that would be awesome.
Your EFS folder was kind of messed up then.
And you're right, it's weird because EFS don't get fu&*%%* up overnight.
Sent from the little guy
The problem is that I don't know how it got messed up xD Might do a totally clean flash, from stock ICS when I get some spare time. And I don't think that it actually was messed up. The first step of the app was to back up current efs. The second one was "force rw mounting on efs folder". I tried the app last time, the time I temporarily lost my IMEI, and it didn't work. So glad it's finally fixed, but I'm scared it will come again

[Q] Help, Please? Galaxy S3 Phone Will Not Acknowledge Sim Card

Hi!
I have come to this forum many times for solutions to problems with my cell phones. And I did check for other similar issues to this, but since my situation is not exactly the same as the other posting I found on this topic, I wanted to ask for help with my specific issue.
Anyway, after going through a year of problems with my HTC Desire my b/f got me a Galaxy S3 for my birthday, (GT19300). It takes a micro-Sim which my old phone didn't so I cut down my old Sim and tried it in the Galaxy. All I could get was a message "No Sim card-Insert Sim Card." Naturally I figured an easy solution would be get a new Sim. My carrier is AT$T. I didn't want to go through the hassle of going to an AT$T store for a new micro-Sim and get bullied into a data plan etc. So I got a new regular sim from AT$T and cut it down, it fits perfectly. (I know the Sim card is fine because I tried it in another OLD crappy phone I have that takes a micro-Sim). However, in the Galaxy it just keeps having the same problem: "No Sim card/Insert Sim."
I've tried clearing the cache, I've tried updating, done factory restores, I've tried removing the batt and Sim etc, all the "easy" solutions, nothing has worked. I've tried the solutions posted on various threads here, nothing.
My b/f assures me the phone is unlocked since he did that himself before he gave it to me. I don't know if he tried using the phone or not, but I presume he did. So i don't see how the phone could still be locked.. And from what I've read IF the phone were still locked there would be a different message in regards to the Sim. Everything works on the phone just fine, EXCEPT it will not recognize a Sim card at all.
I read on another forum that Galaxy S3 users were having a lot of issues with their rooted phones that disappeared after they unrooted, soooo, if this is happening because my phone is still rooted, than obviously I don't really have a choice if I want to actually use this phone for something other than taking nice photos. Could the fact it's still a rooted phone be why it will not recognize a Sim??
Does anyone have any suggestions I can try to solve this problem? I have a feeling it's either a very easy fix or a major pain in the *bleep*. But either way, this is driving me crazy trying to solve the problem. I'd LOVE to be able to use this phone especially after my b/f paid good money for it, not to mention I've made-do with the HTC I had and all the issues it had for over a year.
Any ideas, tips, or suggestions would be most appreciated!
Thank you to anyone who replies!!!!!
*I originally posted posted this in the wrong forum, thanks Audit!
First try a full wipe and flash latest stock with odin. Next replace the sim reader.
Sent from my GT-I9300 using Tapatalk
boomboomer said:
First try a full wipe and flash latest stock with odin. Next replace the sim reader.
Sent from my GT-I9300 using Tapatalk
Click to expand...
Click to collapse
Boom,
Thank you for the reply. I will try your suggestions. I take it this is a very common problem from what I've been reading. Though I cannot find a precise answer to what it could be. So I'll try your ideas for sure.
* I certainly hope your "signature" isn't referring to my post. I DID indeed look through the questions/threads/posts here before I posted. I spent probably 5 hours checking around for an answer... IF you are referring to my question, dude you just offended me terribly...I get where you're coming from though, but people just won't take the time to read through and look for answers before posting, it's that way on pretty much all forums, at least all the ones I've been on and that's A LOT. And if you read my post thoroughly you would have seen that I did mention searching through threads here and elsewhere before I posted.
No, my signature is not aimed at you -the words are from another user, but describe around 80% of the threads created here.
Sent from my GT-I9300 using Tapatalk

[Q] Any rom- any modem - shows I have signal, but intermittently no calls or texts

Firstly, I'm not a noob.
Secondly, I've even opened the phone to see if there is anything loose.. I used to repair phones, and hardware wise everything looks fine. Plus, the issue can happen while the phone is just sitting there, it isn't caused by the phone being moved that I can tell.
So I might suddenly have a voicemail show up, because my phone didn't have signal. Or if I call out, it never gives an error of any kind, it just doesn't ring.. same idea with text, sometimes they just come in all at once.
But the whole time, it SHOWS I have signal. If I search for networks(Settings>more>networks>available networks) when I have no issues, it searches, and shows US or AT&T(which is odd since I have tmobile, but whatever).. if I do this while I AM having the issue - it doesn't search, and nothing shows. Hitting search doesn't do anything.
If I put into airplane mode and take it back out, it will show no signal until the problem goes away. Restarting the phone doesn't appear to solve the issue.
I'm at a total loss here. I've searched - a LOT. This is kind of a hard issue to search for, haven't seen anyone else describe something similar.. so I am just throwing this out here, hoping someone might have some thoughts?
Silentbtdeadly said:
Firstly, I'm not a noob.
Secondly, I've even opened the phone to see if there is anything loose.. I used to repair phones, and hardware wise everything looks fine. Plus, the issue can happen while the phone is just sitting there, it isn't caused by the phone being moved that I can tell.
So I might suddenly have a voicemail show up, because my phone didn't have signal. Or if I call out, it never gives an error of any kind, it just doesn't ring.. same idea with text, sometimes they just come in all at once.
But the whole time, it SHOWS I have signal. If I search for networks(Settings>more>networks>available networks) when I have no issues, it searches, and shows US or AT&T(which is odd since I have tmobile, but whatever).. if I do this while I AM having the issue - it doesn't search, and nothing shows. Hitting search doesn't do anything.
If I put into airplane mode and take it back out, it will show no signal until the problem goes away. Restarting the phone doesn't appear to solve the issue.
I'm at a total loss here. I've searched - a LOT. This is kind of a hard issue to search for, haven't seen anyone else describe something similar.. so I am just throwing this out here, hoping someone might have some thoughts?
Click to expand...
Click to collapse
did your efs changed?
cause if you have generic imei that should be the problem
MrAlez said:
did your efs changed?
cause if you have generic imei that should be the problem
Click to expand...
Click to collapse
I clearly said that I can receive calls and texts.. just not all the time. I had a problem with my EFS a long time ago, but was able to fix it, my IMEI is good, and I can't see any issue in my phone information(including serial, etc). As I said, this is an intermittent problem- right now I would say the issue only happens 20% of the time, maybe less.
It isn't often, but I have had multi-hour phone calls, and none have ever been disconnected by this issue, tho I feel like if I wasn't on the phone the issue would have happened at some point..
Let me point out that this has been going on over two months - in that time I have used stock roms, slim roms, every rom and android version from 4.1-4.4 and many kernels - none seemed to remotely effect the issue.
Is there a possibility of some strange modem thing? My friend has the us variant of the s3, and he has read that he can't downgrade his modem.. so I've avoided using any early modems just in case.. our phone seems to have less and less updated threads for things like modems.
Silentbtdeadly said:
I clearly said that I can receive calls and texts.. just not all the time. I had a problem with my EFS a long time ago, but was able to fix it, my IMEI is good, and I can't see any issue in my phone information(including serial, etc). As I said, this is an intermittent problem- right now I would say the issue only happens 20% of the time, maybe less.
It isn't often, but I have had multi-hour phone calls, and none have ever been disconnected by this issue, tho I feel like if I wasn't on the phone the issue would have happened at some point..
Let me point out that this has been going on over two months - in that time I have used stock roms, slim roms, every rom and android version from 4.1-4.4 and many kernels - none seemed to remotely effect the issue.
Is there a possibility of some strange modem thing? My friend has the us variant of the s3, and he has read that he can't downgrade his modem.. so I've avoided using any early modems just in case.. our phone seems to have less and less updated threads for things like modems.
Click to expand...
Click to collapse
Actually, you can change your modem, but if you went to the 4.3 version of touchwiz, try using other modem from another 4.3 tw, you can give a try, but dont use a 4.1 or 4.2 modem, just a 4.3 modem, (efs2)
MrAlez said:
Actually, you can change your modem, but if you went to the 4.3 version of touchwiz, try using other modem from another 4.3 tw, you can give a try, but dont use a 4.1 or 4.2 modem, just a 4.3 modem, (efs2)
Click to expand...
Click to collapse
I think that was when I had my original efs issue - I was unaware about not going down below 4.3 again- but like I said, that was fixed. Or at least I think it was.
Is there a process to going to efs1 type partition? Perhaps if I properly go back to the original type.. and then upgrade properly(all after backing up my EFS of course..)
I guess the real issue is- could this be related to my problem AT ALL? I mean I get reception most of the time(guessing80%+), and it doesn't even show a signal loss when I can't find a network operator by manually searching!
I guess another thing that has me curious - it shows US or AT&T as the network operators, even tho I am on tmobile(not even pre-paid or anything).. if I select US it works, if I select automatic, it works, if I select AT&T it says your sim card doesn't allow you to register on this network..?
I'm just at a loss, because it doesn't seem like a hardware issue.. I'm actually on the phone with tmobile at the moment trying to see if MAYBE it is something on their side, how they have me registered on the network.. something!
Silentbtdeadly said:
I think that was when I had my original efs issue - I was unaware about not going down below 4.3 again- but like I said, that was fixed. Or at least I think it was.
Is there a process to going to efs1 type partition? Perhaps if I properly go back to the original type.. and then upgrade properly(all after backing up my EFS of course..)
I guess the real issue is- could this be related to my problem AT ALL? I mean I get reception most of the time(guessing80%+), and it doesn't even show a signal loss when I can't find a network operator by manually searching!
I guess another thing that has me curious - it shows US or AT&T as the network operators, even tho I am on tmobile(not even pre-paid or anything).. if I select US it works, if I select automatic, it works, if I select AT&T it says your sim card doesn't allow you to register on this network..?
I'm just at a loss, because it doesn't seem like a hardware issue.. I'm actually on the phone with tmobile at the moment trying to see if MAYBE it is something on their side, how they have me registered on the network.. something!
Click to expand...
Click to collapse
Bro like the said says "Once you go black, you never go back" lol jk, i read somewhere that once you go efs2 is difficult to go to efs1 you will face "UNKNOWN NETWORK", the only thing you left to do is, restore to stock tmobile, root, use triangle away, unroot, flash again stock, and go to your network operator and tell them what problem you have, i think it my be a problem with the network problem idk more, im out of ideas, you should try that. thanks for reading
Silentbtdeadly said:
...
I'm at a total loss here. I've searched - a LOT. This is kind of a hard issue to search for, haven't seen anyone else describe something similar.. so I am just throwing this out here, hoping someone might have some thoughts?
Click to expand...
Click to collapse
Had this issue when I installed KK rom after stock 4.3
Fixed it with patched mg4 modem.
RazorMC said:
Had this issue when I installed KK rom after stock 4.3
Fixed it with patched mg4 modem.
Click to expand...
Click to collapse
So you're sure you were having an issue just like mine? I've read dozens and dozens of threads for tons of samsung devices.. I recall one of them talking about patched modems - any chance you can post the link or even upload a flashable? If this turns out to be a fix.. you will be a god among men!
Silentbtdeadly said:
So you're sure you were having an issue just like mine? I've read dozens and dozens of threads for tons of samsung devices.. I recall one of them talking about patched modems - any chance you can post the link or even upload a flashable? If this turns out to be a fix.. you will be a god among men!
Click to expand...
Click to collapse
Yeah more or less what you were facing. Internittent network drops.
Dropbox link for patched MG4
Let me know if it worked out.
PS: If that doesn't work, then you can also try a modem for your region. Currently using NA8 right now and no issues shifting between stock 4.3 and KK Roms
RazorMC said:
Yeah more or less what you were facing. Internittent network drops.
Dropbox link for patched MG4
Currently using NA8 right now and no issues shifting between stock 4.3 and KK Roms
Let me know if it worked out.
Click to expand...
Click to collapse
I'll definitely give it a try.. where is the source you found it from, how did you figure it out? I found this emergency zip uploaded by justarchi that looks like a patched modem.. is this it? http://forum.xda-developers.com/showpost.php?p=43946365&postcount=15
Otherwise, for curiosities sake, if you figured this out(and it does fix my issue), I am QUITE curious how you figured it out!
Silentbtdeadly said:
I'll definitely give it a try.. where is the source you found it from, how did you figure it out? I found this emergency zip uploaded by justarchi that looks like a patched modem.. is this it? http://forum.xda-developers.com/showpost.php?p=43946365&postcount=15
Otherwise, for curiosities sake, if you figured this out(and it does fix my issue), I am QUITE curious how you figured it out!
Click to expand...
Click to collapse
I found it on xda long ago. But since it took ages to find the link, I bookmarked the link so I could post without having to spend hours scouring threads for it. It was originally in the modem/baseband thread.
AFAIK, JustArchi was referring to old modems no longer working with stock 4.3 firmwares and the resulting corrupted IMEIs when you use old modems or tried to go back to 4.1.2.
This post on my thread recommended patched MK6 kernel + patched MK6 modem.
But I went with just patched MG4 and worked. The issue at that time was no network, but I've been able to resolve network drops with patched modem.
This is just my experience though.
Before you flash the modem, make a backup in PhilZ Recovery first. Backup efs and modem both.

[Q] Galaxy S3 Cyanogenmod is not a fun experience for me

Hello, first off I would like to say I'm terribly sorry for posting in the wrong section, but there isn't a section for the US Cellular Galaxy S3 and I don't want to spend an hour trying to find the correct section. Anyway, I've had my S3 for 1.5 years now and I finally decided to ditch Touchwiz and install Cyanogemod. So I got TWRP recovery, installed the correct cyanogenmod 11 version and gapps. I was extremely happy with the smoothness that I decided to text a friend. Text wouldn't go through. Nor could I make phone calls. Anyway I went into settings and it claimed my phone number was something along the lines of '000-000-9356' (Not entirely sure on last 4 digits) So I tried restoring to the backup that I had made, which did not work. Data however did work after tinkering with settings. Fast forward 2 weeks and I decide to try and fix the sms and phone problem. I couldn't find any help and stumbled upon a list of modems for SCH-R530U. Flashed one of those and when the phone booted back up, I had no data connection at all. I tried flashing the rest of them in a panic to try and fix what I broke but none of them changed the broken connection. I went into settings, about phone, status, and the phone says unknown for my network type, phone number, MIN, PRL version, MEID, IMEI, and ICCID. I know realize that I most likely have broken this phone beyond repair and I can't seem to find any fix or any stock firmware for my phone. If anyone could provide some help, it would be greatly appreciated instead of comments telling me to go to iOS, stating that I ****ed it up, or anything similar that I have recently gotten on other forums I've tried to get help from.
SamsungMakesMeCry said:
Hello, first off I would like to say I'm terribly sorry for posting in the wrong section, but there isn't a section for the US Cellular Galaxy S3 and I don't want to spend an hour trying to find the correct section. Anyway, I've had my S3 for 1.5 years now and I finally decided to ditch Touchwiz and install Cyanogemod. So I got TWRP recovery, installed the correct cyanogenmod 11 version and gapps. I was extremely happy with the smoothness that I decided to text a friend. Text wouldn't go through. Nor could I make phone calls. Anyway I went into settings and it claimed my phone number was something along the lines of '000-000-9356' (Not entirely sure on last 4 digits) So I tried restoring to the backup that I had made, which did not work. Data however did work after tinkering with settings. Fast forward 2 weeks and I decide to try and fix the sms and phone problem. I couldn't find any help and stumbled upon a list of modems for SCH-R530U. Flashed one of those and when the phone booted back up, I had no data connection at all. I tried flashing the rest of them in a panic to try and fix what I broke but none of them changed the broken connection. I went into settings, about phone, status, and the phone says unknown for my network type, phone number, MIN, PRL version, MEID, IMEI, and ICCID. I know realize that I most likely have broken this phone beyond repair and I can't seem to find any fix or any stock firmware for my phone. If anyone could provide some help, it would be greatly appreciated instead of comments telling me to go to iOS, stating that I ****ed it up, or anything similar that I have recently gotten on other forums I've tried to get help from.
Click to expand...
Click to collapse
I have done a quick search for you and it seems to the same as the one from verizon. Thats what google told me and this link leads to so don't quote me 100% and it also states "This device does not have dedicated subforums, you may be able to find assistance in the Verizon subforums. "
http://forum.xda-developers.com/wik.../SCH-R530#XDA-Developers_Forums_for_the_Phone
According to us cellular it is a SCH-R530U with baseband R530UVXUCNF3 and android 4.4.2.
Have done abit or search but I will not post links as Im not familiar with it and don't want to be the one to give you a link to brick it so im afraid that's as far as I can go and suggest you go to verizon section
SamsungMakesMeCry said:
Hello, first off I would like to say I'm terribly sorry for posting in the wrong section, but there isn't a section for the US Cellular Galaxy S3 and I don't want to spend an hour trying to find the correct section. Anyway, I've had my S3 for 1.5 years now and I finally decided to ditch Touchwiz and install Cyanogemod. So I got TWRP recovery, installed the correct cyanogenmod 11 version and gapps. I was extremely happy with the smoothness that I decided to text a friend. Text wouldn't go through. Nor could I make phone calls. Anyway I went into settings and it claimed my phone number was something along the lines of '000-000-9356' (Not entirely sure on last 4 digits) So I tried restoring to the backup that I had made, which did not work. Data however did work after tinkering with settings. Fast forward 2 weeks and I decide to try and fix the sms and phone problem. I couldn't find any help and stumbled upon a list of modems for SCH-R530U. Flashed one of those and when the phone booted back up, I had no data connection at all. I tried flashing the rest of them in a panic to try and fix what I broke but none of them changed the broken connection. I went into settings, about phone, status, and the phone says unknown for my network type, phone number, MIN, PRL version, MEID, IMEI, and ICCID. I know realize that I most likely have broken this phone beyond repair and I can't seem to find any fix or any stock firmware for my phone. If anyone could provide some help, it would be greatly appreciated instead of comments telling me to go to iOS, stating that I ****ed it up, or anything similar that I have recently gotten on other forums I've tried to get help from.
Click to expand...
Click to collapse
have that problem on a Korean SKTELECOM phone, and I fixed it with a restore of my efs partition. if you dont have a backup of your previous efs partition, you must have to go to a samsung service center and fix it using some money.
I have the same phone and I flashed the same ROM. i had a horrible experience doing it. let me say that the ROM is awesome. but As we know it is a pain on the butt. I just can't do calls. I dial the number and it won't call. the camera app don't have a flash yet I think. and if you have a bad signal it gets worst. using your post I would like someone or maybe you if you know any other ROM to install on this phone. what is the best?
Sent from my SCH-R530U using XDA Free mobile app

Samsung Galaxy Note 8 Internet not working properly

Hello guys. I bought a second hand Note 8 from a classmate a week ago. It was at a good price so I went for it. The internet was not working properly in it, it would just stop working for around 20 seconds and then start working again, i thought it might be because of the rain or something but after using it for 4 days I thought something was fishy. I put my sim into another phone and Internet worked perfectly good and normal, i put in different sim cards into my note 8 but the internet issue remained. In the settings it showed N950F. I put in it Download mode and noticed that its not N950F, Its N950N, I googled it and it turned out to be a korean model. I did deeper digging and found out its been converted to dual sim N950F by flashing a Custom rom. I told him all this and asked my money back to which he told me he spent it all. Now i'm stuck with this phone. I feel like i have wasted my hard earned money. I searched online found videos on youtube but i did not try them fearing my note 8 may get hard bricked or worse. Now i am not sure if it is a hardware issue or a bug in the custom rom, I am just assuming it's because of the custom rom. Please help me out. It's a korean model Note 8 256gb. If there's a way where i can keep the dual sim funtionality and get my internet issues fixed, I would love that, if that's not possible, then just fixing the internet issues would be much appreciated too. Thank you very much.
mohdiqbal said:
Hello guys. I bought a second hand Note 8 from a classmate a week ago. It was at a good price so I went for it. The internet was not working properly in it, it would just stop working for around 20 seconds and then start working again, i thought it might be because of the rain or something but after using it for 4 days I thought something was fishy. I put my sim into another phone and Internet worked perfectly good and normal, i put in different sim cards into my note 8 but the internet issue remained. In the settings it showed N950F. I put in it Download mode and noticed that its not N950F, Its N950N, I googled it and it turned out to be a korean model. I did deeper digging and found out its been converted to dual sim N950F by flashing a Custom rom. I told him all this and asked my money back to which he told me he spent it all. Now i'm stuck with this phone. I feel like i have wasted my hard earned money. I searched online found videos on youtube but i did not try them fearing my note 8 may get hard bricked or worse. Now i am not sure if it is a hardware issue or a bug in the custom rom, I am just assuming it's because of the custom rom. Please help me out. It's a korean model Note 8 256gb. If there's a way where i can keep the dual sim funtionality and get my internet issues fixed, I would love that, if that's not possible, then just fixing the internet issues would be much appreciated too. Thank you very much.
Click to expand...
Click to collapse
Have you tried checking to see if the APN settings are correct for your sim? That could fix it.
You could just flash stock filmware for the device, which can be found on "Sammobile" or "Updato" but would obviously return it back to single sim.
stonedpsycho said:
Have you tried checking to see if the APN settings are correct for your sim? That could fix it.
You could just flash stock filmware for the device, which can be found on "Sammobile" or "Updato" but would obviously return it back to single sim.
Click to expand...
Click to collapse
Yes I tried the APN settings, there was nothing wrong there.
The problem is, flashing the original stock rom might restrict my network connections to Korea only. It might not have other languages as well. If you have any other suggestions please tell me, if you know someone who might, kindly mention him.
Thank you for replying.
mohdiqbal said:
Yes I tried the APN settings, there was nothing wrong there.
The problem is, flashing the original stock rom might restrict my network connections to Korea only. It might not have other languages as well. If you have any other suggestions please tell me, if you know someone who might, kindly mention him.
Thank you for replying.
Click to expand...
Click to collapse
I wish I knew other suggestions to offer, but I am limited in my knowledge, especially with issues like this. Not something I have encountered before. I can't find an answer on Google to see if you would be okay using your sim on the Korean variant.
Hopefully someone more knowledge will answer, if you don't get a reply, just keep bumping the thread.
stonedpsycho said:
I wish I knew other suggestions to offer, but I am limited in my knowledge, especially with issues like this. Not something I have encountered before. I can't find an answer on Google to see if you would be okay using your sim on the Korean variant.
Hopefully someone more knowledge will answer, if you don't get a reply, just keep bumping the thread.
Click to expand...
Click to collapse
Thank you. Yes I'll keep bumping it.
I had a problem with data and MMS not working. It's silly but make sure with your APN type is "default,dun,supl,mms". Mine was blank and wouldn't work without putting that in.
Good luck.
mikey199 said:
I had a problem with data and MMS not working. It's silly but make sure with your APN type is "default,dun,supl,mms". Mine was blank and wouldn't work without putting that in.
Good luck.
Click to expand...
Click to collapse
Thanks, I'll try that.
I would take your device to the high street branch of your Service Provider and let them take a look at it. It is probably the Network Settings which need to be configured on your device.
iceepyon said:
I would take your device to the high street branch of your Service Provider and let them take a look at it. It is probably the Network Settings which need to be configured on your device.
Click to expand...
Click to collapse
I tried that. It didn't work. I Flashed a different Custom ROM, the problem still remained. I'll flash stock ROM and see what happens.

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