Cannot call nor send sms after installing nugat - Samsung Galaxy S7 Questions and Answers

Hi,
(I'm quite new to all of this.)
I installed android nugat on my Samsung Galaxy S7 SM-G930F using this guide: https://forum.xda-developers.com/galaxy-s7/development/rom-superstoc-rom-v1-0-aroma-t3496520.
And I currently my sim card is not able to connect to network, after insertion of the sim card, I pass through sim pin. Sim is loaded by phone. On the locked screen it says 'Just emergency calls'. When I try to call anyone, it says 'Not registered in network'.
Already tried two different roms, even Samsung Switch Emergency Software Recovery and Initialization.. nothing happened, the problem is still there, not able to use any mobile services.
Did find that my IMEI is not the same as on the back side of the phone.
Samsung Serial Number is equal with back of the phone.
CSC CODE INFO:
PRODUCT CODE: SM-G930FZKABTU
ORIGINAL CSC CODE: BTU
FIRMWARES CSC CODE: BTU
ACTIVE CSC CODE: BTU
AVAILABLE CSC CODES: BTU, CPW, DBT, ITV, KOR, NEE, XEF, XEO, XEU
CSC COUNTRY: UK & IRE /GB
MOBILE OPERATOR: 23002
I also find that the android says that it is G930FD (dual sim version), even though that on the back of the phone there is written G930F, and obviously there is no way to put second sim inside.
I'm in Czech Republic and I've Vodafone. Everything worked perfectly fine before I started messing up with the roms. Do not know whether the IMEI was different when it was working.
Could anyone give me some advice how to fix it?

josef55 said:
Hi,
(I'm quite new to all of this.)
I installed android nugat on my Samsung Galaxy S7 SM-G930F using this guide: https://forum.xda-developers.com/galaxy-s7/development/rom-superstoc-rom-v1-0-aroma-t3496520.
And I currently my sim card is not able to connect to network, after insertion of the sim card, I pass through sim pin. Sim is loaded by phone. On the locked screen it says 'Just emergency calls'. When I try to call anyone, it says 'Not registered in network'.
Already tried two different roms, even Samsung Switch Emergency Software Recovery and Initialization.. nothing happened, the problem is still there, not able to use any mobile services.
Did find that my IMEI is not the same as on the back side of the phone.
IMEI INFO:
IMEI (slot 1):
IMEISV (slot 1): 01
IMEI (slot 2): 000000000000000
IMEISV (slot 2): 01
IMEI on the back side of the phone:
Samsung Serial Number is equal with back of the phone.
CSC CODE INFO:
PRODUCT CODE: SM-G930FZKABTU
ORIGINAL CSC CODE: BTU
FIRMWARES CSC CODE: BTU
ACTIVE CSC CODE: BTU
AVAILABLE CSC CODES: BTU, CPW, DBT, ITV, KOR, NEE, XEF, XEO, XEU
CSC COUNTRY: UK & IRE /GB
MOBILE OPERATOR: 23002
I also find that the android says that it is G930FD (dual sim version), even though that on the back of the phone there is written G930F, and obviously there is no way to put second sim inside.
I'm in Czech Republic and I've Vodafone. Everything worked perfectly fine before I started messing up with the roms. Do not know whether the IMEI was different when it was working.
Could anyone give me some advice how to fix it?
Click to expand...
Click to collapse
Hi mate
Where did you get this phone from??
The imei is not right and the change for sure is not caused by flashing the custom rom , flashing the custom rom probably caused that the original Imei resurface , first imei belongs to a totally different phone:
Model: DIAMOND
Brand: XTOUCH
IMEI: TAC: 359007 FAC: 07 SNR: 042596 CD: 4
The second one it does belongs to an S7
Somebody changed the Imei ...usually this is done when the phone is stolen.......maybe that is why is banned
Take the phone back , the phone was working fine because you had an Imei from and old phone ....the original imei is probably reported stolen

Not glad to here that. I bought it from some guy, there is no way for me to put the phone back.
Is there any way to make it work? Next time I'll rather buy brand new, but once I have it, and money are gone...

josef55 said:
Not glad to here that. I bought it from some guy, there is no way for me to put the phone back.
Is there any way to make it work? Next time I'll rather buy brand new, but once I have it, and money are gone...
Click to expand...
Click to collapse
unfort we dont talk about how to change imeis here most countries its illeagal
also for future refrance please dont post imeis on here either in the off even some one does try to take ure info and use it for there own even if it is banned
i though i was in a similar situation i thought my s7 was hot because of a old text i found on it. and i later found out another phone the girl had was stolen not my s7 so i got lucky. basicly without equip like octoplus box changing its not gonna happen.

josef55 said:
Not glad to here that. I bought it from some guy, there is no way for me to put the phone back.
Is there any way to make it work? Next time I'll rather buy brand new, but once I have it, and money are gone...
Click to expand...
Click to collapse
If you have any form of receipt / chat with your seller, your best bet would be to print everything and go to local authorities. It's a slim chance, but a chance nontheless.
It might be the case that the seller banked on you not changing your rom etc.
It's most likely a stolen device and yes there are ways to make it work again, which won't be discussed, since it's illegal and also any IMEI should not be posted here as mentioned by the previous poster. As you found out, you can easily backtrack IMEI information. This time it worked out for you, but usually it just get's you into trouble.
And even if you don't have anything at all, still go to the local authorities and explain it to them. If the original owner of the device tracks the IMEI, which you accidentially reset, you might get accused of being the thief, even if you did not do it.
Next time you buy something used, ask for an ID copy (depending on country) and make a receipt with price, IMEI and you and your sellers data (Name adress etc).
If **** like this happens again, atleast you will be on the safe side. And even then.. sometimes it's better to save some more money to get a new device from a store (full warranty etc.).
It`s the only tips, i can give you now. But i do wish you the best of luck.

Thanks for answers!
I'm just wondering, if the imei, would be marked as stolen, and I would restore the original one by flashing the rom, wouldn't be the imei displayed in android, the same as is on the back of the phone?

Just installing rom wont change IMEI!
Sent from my SM-G930F using XDA-Developers Legacy app

I basically tried to install APP, BL, CP, CSC using Odin couple of times (have tried: Czech Vodafone 6.0.1, Czech O2 7, Germany Vodafone 7, SuperStock-Rom_SM-G93XF_V2.4, that what I remember). Once also tried to clear data using twrp and root it. Also once I messed up the installation, so I did Emergency software recovery and initialization using Smart Switch.

Since updating to Android 7.0 on SAMSUNG S7, the SAMSUNG call/phone icon no longer notifies or display for me missed calls. I've to rely on a third party truecaller for the notifications. I'm not used to this and as a result I've missed to respond to very important calls.

Related

Galaxy S6 region lock

I have read basically all the region lock threads so far......
My phone says "no sim card | emergency call only"....so i'm pretty sure mines is region locked (UAE Galaxy S6, used in the US now)
I tried contacting the country specific Samsung customer support. Here are a few responses from the UAE agent:
aeagent012 said:
Unfortunately in this case you will be in need to send the device to one of the service centres in UAE to remove the region lock.
and
If the device covered under warranty, we can unlock it for free.
and
We apologize for the inconvenience, you can send the device and provide us with the number that you will receive from the service centre and we can file complaint to unlock for free.
Click to expand...
Click to collapse
So basically....My response was....#1 I need to send/ship it over to UAE service center #2 Under warranty its a free unlock #3 I told them I wasn't under warranty and basically didn't want to pay......and the agent reasoned with me and said they will basically do the unlock for free if I send it.
At last, Now the agent told me to send my IMEI to their R&D department. I will try that
@saar17
Question: Without sending the phone in.....how is the region unlocked achieved? It is an actual code, if so where would I enter the code anyway, no pop-up menu says enter any code.....Or is it a dialpad code? The only indication of the lock is my phone saying "no sim card".....With card inserted and full signal. No type of "enter code" menu.
Secondly..........Has anyone tried to odin flash stock firmware from country you want the phone to work in? (Example: Flash North American firmware to my UAE region locked phone)
Can anyone disprove the theory of buying the original country specific sim to put in.....even in different country. Or does the call absolutely have to be made with region sim in that actual region?
I got a UAE S6 and when I first put my SIM card in it said the same no sevice thing. Then it updated to 5.1.1 and it was fine. Guess I dodged a bullet.
Sent from my SM-T710 using Tapatalk
I also have a UAE S6 but I never had SIM lock issues when travelling. Worked fine in Egypt and Lebanon as well as the UAE.
I got it in Canada so it would have been a real problem if I had to send it away.

How to unlock sim network code on Galaxy S6 - G920F variant

Hello everyone. I recently bought a Galaxy S6 SM-G920F 64Gb whose origin is from Spain and bought through the PhoneHouse store and is supposed to be unlocked for use on several carriers, but is not my case.
The Galaxy S6 is currently running Android 5.1.1 and i´ve made root using ODIN and Chainfire, so, this cause to increase the counter KNOX from zero to 1.
Here are some data from the Stock ROM Non Carrier Bloatware-Free (but is not SIM unlocked ROM)
5.1.1 lollipop
Product code PHE
PDA G920FXXU3COI9
CSC G920FPHE3COI6
So, the Stock ROM is not tied to any operator in Spain, also G920F variant is a almost Global, but is not able to use it in Colombia, does not work with any operator that exist in this country, and that is because it is always requesting an "unlock Network PIN code" for SIM.
I have understood that this variant S6 is Global, so it will work on all 2G / 3G / LTE (AWS) networks in my country, as well as I did the verifación in WillMyPhoneWork website.
In this regard, I have read that phone can be unlocked in several ways:
1. Editing -with prior backup- nv_data.bin file located in EFS file, but I cant find the hexadecimal lines to be modified (in Galaxys S3 and S4 this worked but apparently is not in S6)
2. Some websites suggest use of boxes like Z3X or Octopus box, but they constantly ask for a card that clearly I do not have, also, I dont want to wait for shipping if i buy that box, and i cant get that bokes easily in my country.
3.Lastly but not least, Unlock online services, theres many of them!! but I do not want to use services that unlock, because they are scams and never send codes to the email.
In short here are my two questions:
1. How can I unlock the SIM restriction for use my phone with the carrier/s of my choice?
2. How can i Reset KNOX counter reset to zero? This is because warranty issues and if something goes wrong i need that for claim.
Thanks in advance.
I bought my unlock code from CellUnlocker.Net last July. They do their codes pretty cheap and you can pay through PayPal so there's a guarantee that you get your money back if they don't send you a code. They got back to me within just a day. As for the KNOX, not sure if I'm right but I think there's no way to reset it once you've tripped it already.
You can try to unlock your Galaxy S6 with unlockradar.com , they have an 20% off offer.

How to remove region locking

I bought a Galaxy A9 Pro in Thailand. (In an original Samsung shop, not operator locked. I still keep the receipts.) First time I used it with SIM-card was in Africa. Now, in Sweden, it will not work with Swedish SIM. But it works with Thai and African SIM, in Sweden. (And in Turkey it worked with African SIM but not with Turkish SIM.)
I sent it to Thailand where it worked with Thai and Swedish SIM. But back in Sweden it still does not work with Swedish SIM.
(According to some information, making a call longer than 5 min on a network in the country to where the phone was distributed, will remove region unlocking. Some Samsung retailers claim this but do not take responsibility if it doesn't work. Samsung does not verify this information. But it did not work on this phone.)
Flashed Brazilian ROM into it. (KNOX still 0x0) Same problem.
Samsung Sweden, Thailand and Korea can not solve this. They only sent "unlocking codes" that don't work. Samsung does not admit to region locking.
Samsung Sweden basically says "Not our problem, the phone is bought in Thailand." But they used two weeks to bring unlocking codes from Korea. But the codes did not work.
Samsung Thailand says "You must flash new ROM and void warranty."! (The phone was bought in March 2017 and is still under 2 years warranty from the factory.)
Edit: This has nothing to do with connectivity. The phone works with both Thai and African SIM-cards in Sweden. But it will not recognize a Swedish SIM-card in Sweden. (Several SIM from two different operators have been tested.) But my friends in Thailand said it worked with Swedish (and Thai) SIM-cards in Thailand.
Edit 2: I now rooted it to try "region lock away apps". But to no avail. My guess is many such apps and sites ask money for codes that not are guaranteed to work. The codes I got for free from Samsung did not work. (In fact you can enter any number and the phone will always respond "region lock removed"!)
Rooting does not seem to make it possible to remove the lock. At least I haven't found out how.
How can I make the phone work world wide, like my previous Samsung phone always did?

A simple question about csc code....

I've been searched for few days and try my best not to ask this stupid question. But seems like nobody cares about it or everyone know the answer except me....
So, here is the question:
The CSC code you talk about, looks like have three different "status" at least. The csc code found in download mode, the csc code found in recovery mode and the three codes found in "SETTINGS>ABOUT PHONE>Software information>Service provider", what EXACTLY did they mean?
I know there is active csc, firmware csc, original csc. For example the three CSC codes found in Settings, XAS/XAS/SPR, which is active csc? which is firmware csc? which is original csc?
Additional, I can't change the last csc code XXX/XXX/SPR, right? And in recently firmware, the active csc code seems like could change with SIM card inserted. If this is true, can I assume that there is no difference among USA's Carrier versions whether in hardware and in software?
PQWSaying said:
I've been searched for few days and try my best not to ask this stupid question. But seems like nobody cares about it or everyone know the answer except me....
So, here is the question:
The CSC code you talk about, looks like have three different "status" at least. The csc code found in download mode, the csc code found in recovery mode and the three codes found in "SETTINGS>ABOUT PHONE>Software information>Service provider", what EXACTLY did they mean?
I know there is active csc, firmware csc, original csc. For example the three CSC codes found in Settings, XAS/XAS/SPR, which is active csc? which is firmware csc? which is original csc?
Additional, I can't change the last csc code XXX/XXX/SPR, right? And in recently firmware, the active csc code seems like could change with SIM card inserted. If this is true, can I assume that there is no difference among USA's Carrier versions whether in hardware and in software?
Click to expand...
Click to collapse
From what I recall, when I initially got an S7 was that the phone had been made in Korea and the CSC region code was for China (first CSC), and the carrier (second CSC) was for I can't recall the phone companies name in China.
Even with the CSC described above, the phone worked just fine in the US. Never the less I changed the CSC by flashing. I chose the first CSC to be XAA (USA), for the second CSC I had the option for ATT, Sprint, etc so I could have used a specific CSC for a specific carrier, right? (yes)
But instead I wanted my phone to be more generic, because I wanted an easy method to allow for any US or European/other national region GSM sim, somewhat like an international phone yes?, so I chose XAA (generic sorta carrier) for the second CSC.
The original phones CSC can show up in an app which shows the phones origination, etc, but since the 'active' CSC is XAA/XAA, the original birth CSCs don't really matter any longer.
If I put in an ATT sim, remember I'm using a generic carrier CSC of XAA, the CSC will not change, though my phone will still work ok. If I put in a T-Mobile sim, it's the same, the phone still works but the XAA CSC stays the same.
I could flash the ATT CSC, and because my phone is a GSM phone, it would still work with a T-Mobile sim, but I might not get any special T-Mobile abilities, since the ATT provisioning may has some enabled extra services that T-Mobile might not have. I could flash the T-Mobile CSC and the same would apply if I inserted an ATT sim.
I'm not aware of the phone companies in the US yet making all their GSM phone compatible with each other by a simple sim switch (is that called e-sim or something like that?, though I understand that the hardware may be in many newer phones, but software disable. I believe there is a current law suit and or an FCC complaint regarding the issue or collusion by several phone companies, as with the phone companies 'disabling' a simple sim switch to change companies, makes is more difficult for users to easily change phone service providers.
As usual, most US companies do what they can to make things more difficult for their customers, and our government does little to stop them. We sure could use Europes more friendly citizen advocacy and better pricing, increased privacy and control of our personal info, as well better service for public utility, internet and phone services. Europeans just don't put up with the s**t like US citizens do.
So going back to your original post, the active CSC is what you need to pay attention to in order to mate that with your current region and service provider. The original CSC info, from my perspective, might only be useful if you wish to return a phone back to it's stock birth status.
Anyway, I hope this helps answer your question.
I know this is a really old post, but I was digging in to know about the Service Provider... I have XAA/XAA/SPR on my SM-N960U (Note 9), I'm outside of the US I'm living at Central America, so when I just came here I bought a Sim-Card from here and All works fine, now. I'm trying to Update by Odin to Android Pie, but I don't want to mess up with this important part because I will still live here during the following year. so, you think there is a possibility of messing this "sim-Unlock" by upgrading? hope you can answer this post I know it's being a while since the OP.
so did anyone find out how to the change the 3rd CSC code. eg i can convert a VZW/VZW/VZW to VTR/VTR/VZW. But how i change that last VZW to VTR also. Some say it cannot be changed, but others say i can be.
im coming from a s8+, where you could flash the combination files etc.. and end up with all three same csc codes on the phone eventually.

Making this Galaxy S7 useful

I have a teenage son who has taken initiative to figure out how to replace a motherboard in what was his sister's broken Galaxy S7 (model: SM-G930U). All seemed to work successfully until he tried to activate the phone on the network our family uses (US Mobile). The company rep said that the phone is not voLTE compatible and cannot be used. The rep also said that the phone appeared to be an AT&T phone, which must be due to the motherboard my son installed into the phone because I have always tried to buy phones for my kids that will work universally across all networks. Researching a bit, I'm seeing that many Galaxy S7s are voLTE compatible (even my wife's older phone--an S5--is voLTE compatible). It seems strange to me that this phone is not voLTE compatible and now appears to be quite useless to connect to a carrier. My guess is that this must be a software/firmware configuration issue, and I would like to help my son be successful in his endeavor to have a working phone.
Can anyone guide us through the process of making this phone voLTE compatible? Some high-level background information about how cell phones are structured and what might be causing this problem (hardware vs. software/firmware) might also be useful to help us get the technological lay of the land. I have a lot of desktop/laptop tech knowledge from back in the day (e.g., CompTIA A+/Network +; MCSE; Novell CNE), but not so much when it comes to cell phones (so analogies might be helpful). I have installed Phone Info and can provide other information as requested.
Hey, my first guess would be, that the csc file flashed on this mainboard does not match your country or region or carrier. Download an official firmware with the carrier-free csc variant from your country and clean flash it with ODIN (aswell as every other partition) this will wipe your phones data so be caucious!
Setings>About Phone as well as Phone INFO say that the model # is "SM-G930U". However, when I enter the IMEI number at IMEI.info, it tells me that the model number is "G930F Galaxy S7 (SM-G930A)". So, what model number should I use when searching for the correct firmware to download? Before my son replaced the motherboard, I'm sure the model of the phone was SM-G930U.
Try running this
Update/Flash/Unbrick your device via Odin
Hello everyone! I made a tutorial regarding flashing the latest update when not available in your region: Video tutorial: Steps: 1. Download and extract both Frija and Odin. 2. Launch Frija. 3. Check the "Auto" button. Write your device's...
forum.xda-developers.com

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