Database Users

SM-N916S Roaming

Hi Guys,
I have this annoying problem and I'll ll be glad if someone can help me.
I have the Korean Samsung Galaxy Note 4 SM-N916S, Rooted android version 5.1.1
I live in the Philippine and I'm using local SIM Card. I can make out/in phone calls.
The problems are:
1. Many times I get the message "network not register" restart the phone fix the problem, sometime I need to restart the phone twice
2. when I switch on the phone I get warning message "Data mobile off/on"
3. Can't send SMS to UK
4. The Sim Tool Kit can run and I need to use some substitute app, which not work so well
After I dig deep the Internet I got to understand the problem came because the phone is Korean version and It will fix only by Change the CSC Code from 'KOR' to International version
no matter what I did I can't change it to any other CSC code, from the error messages I understand to change the CSC Code I should have Multi CSC firmware, which I don't have.
I will appreciate any help

hi
i have same problem whit my note 4 sm-n916s.
its worked well, but after 6 mounts i can' t to call or to get incoming
only this problem, every things working well.
do u fix it

no signals even after fastboot rom

hi guys... i urgently need help..here is my problem..
im not getting signals on redmi 2 (1gb indian )
i flashed lolipop rom of redmi 2 prime than i installed custom recovery to flash cm14.1
i used that rom for few days
after than
today
i flashed back miui 8 via fastboot (4.4.4)
everything was fine but when i tried to change sim cards
i got no signals
i mean i cant swap sim cards i get this kind of error
and if i use single sim..it works
device id null
and all that error
i checked baseband version . it is showing unknown there .
device name shown is hm2 lte in
.
i tried fastboot method
please suggest

Hi there, You are not alone
I am also Redmi 2 (both 1gb and 2gb ram variant) user. I was using MIUI Kitkat, then switched to Lollipop using fastboot. Later I also used CM14 (Lineage OS - N). Few hours Iater after using it I felt buggy so finally I came back to MIUI 8 (Kitkat).
I also got Baseband unknown error, I will explain how it came and what to do next..
I basically have two Jio sims. so what I did what tried using the mobile (Redmi 2 1GB) with two JIO sims at the same time, I finished the DATA from sim 1 so I tried to swap Mobile DATA from sim 1 to sim 2. And that's it.!!
My Baseband became "UNKNOWN" and phone started to reboot.
How did I fixed this ? :
First of all, I have MIUI Lollipop (LP) Fastboot (FB) Rom as well as MIUI Kitkat (KK) Fastboot Rom (MIUI versions doesn't matter).
Next what I did was, Remove the SIM cards and Memory Card from my phone and Flashed the MIUI LP FB Rom. After successfully getting into MIUI welcome screen, I turned off the phone and again fastbooted it and flashed the MIUI KK rom. Now I dont get Unknown Baseband Error, If suppose you are a Jio user.! For your kind information use the JIO sim only on Sim 1 slot and also do not use two JIO sims like me. Redmi OS hasn't got developed much to switch sims with 4G higher band LTE simultaneously . If you need you can exchange the JIO sims manually by removing the previous sim from Slot 1.
NOTE : I have flashed with "FLASH ALL" option in MiFLash software.
Good luck, I hope my essay like reply will help you.!

ok...let me try this...

If still the problem persists , Here is my Detailed Solution :
ajayNvats said:
ok...let me try this...
Click to expand...
Click to collapse
Kindly try and tell me, If still the problem persists then I'll give another advanced brief solution.
Cause it needs your mobile to be rooted and also needs PC + few softwares to restore your IMEI (Bandbase) :good:

Problem with SIM Card

Hi guys!
I'm from Venezuela, I recently acquired a Nexus 6p (h1511), so yes, I'm a noob. When the cell phone arrived in Venezuela, I connected it to the Wi-Fi network without placing a SIM card, and there was an update notification, I executed it, anyway it already came with Oreo 8.1, the update was December, the one that had It was November. After updating the SIM of the operator Movistar, recognizes it since it says "Without service - Movistar", when trying to call it shows the error "Mobile network not available", when trying to do a network search, it gives error, sometimes to one side of the signal bar, appears an R (Roaming I guess) ... I've been doing a lot of research, believe me I would not be creating this post if I was not so desperate, I have many doubts
I took it to a technician, he looked at it and said it was CDMA that there was nothing to do, he wanted to sell me a GSM motherboard, I told him I would think about it, it was strange for me to be just CDMA, I investigate more and I realize that it's dual, and it changes from MEID to IMEI when I put the SIM card ... I did a factory reset and it did not work. I used the options in *#*#4636#*#* the default is LTE/CDMA/UMTS Auto (PRL) ... I tried to put GSM Only or Auto or any option that included GSM. Without apparent results, I think that it did not even change the default option, the radio bands are few, all from the USA (logical being the USA version of the cell phone) ...
Investigating further, I understood that the problem persists in Android Oreo ... Under the official firmware of Google 7.1.2, I follow the steps, I do the unlocking bootloader, flash vendor / radio, flashing system, in the end there is an error , something about user, I really do not remember, something like that could not erase the user partition or had no permissions ... The issue is that I turn on the cell phone, start to do an erasure, then start asking for google account, etc. ... I configure it, but I see everything the same, I enter the configuration and details of the team, it keeps dialing android 8.1.0, but I see that the base band has changed, some apps have changed, like the application of calls ...
Does anyone know what happened? (And no, the SIM problem was not fixed) :crying:
I want to install this ROM
https://forum.xda-developers.com/nexus-6p/development/rom-chroma-11-08-2015-lockscreen-navbar-t3244444
According to many sites and here in XDA comment that it solves the problem, but this is 6.0.1 ... It means that I must flash 6.0 stock? To install the custom? Or can I install on 8.1?
Any other more updated custom rom that solves this problem?
Thank you! :fingers-crossed:

[HELP] Problem with network, no service sim 2, can't receive calls sim 1

Hi guys I have a problem
I try install RR V.7 with Android 9 on my mi A1, but after install don't have a signal in my phone, sim 1 and sim 2 say " no service" then I flash the last firmware with Android 9 ( V10.4) original and stock downloaded of MIUI page, when install firmware whit miflash, only have signal in sim 1 but don't have received call because the reject, I try everything, try flash modem by flashboot, try change IMEI by qfil, try install another firmware, try install MIUI ROM and nothing work.... I need help please!.

No calls after flashing rom

Hi,
I recently bought a new galaxy s5 SM-G900F from an amazon marketplace seller and immediately flashed it with lineageOS 16 following the instructions at lineage os wiki -> /devices/klte/install. Everything seemed great until I put my 3 UK sim card in - it recognizes it and shows that I am on the 3 network but with pretty poor / variable signal and phone calls don't work: incoming calls just don't show up at all and with outgoing calls it says it is calling but I don't get any ringing tones and the other side doesn't get anything.
Interestingly for someone calling this phone they get the normal ring tone once and then it changes to the ring tone I would expect if I were calling abroad.
Sadly I didn't take a backup of the software that was already on it and I didn't try it before flashing lineageOS.
Lineage OS showed the baseband firmware as G900FXXS1CQA3. I have since tried flashing new modem firmware to G900FXXU1CQK3 and even full samsung images (latest samsung stock UK BTU) using heimdall - again, everything seeems to work except calls.
Any ideas what I can do?

I would try some other ROM to see if you still face the same issue.