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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.
I'm new to XDA and not very expert at Android. I used to use a T-Mobile Samsung Galaxy S6 with T-Mobile as the carrier. I recently bought a used AT&T Samsung Galaxy S7 Edge, and have succeeded so far in getting it unlocked so it recognizes my SIM card. So my phone is up and running. However, it is still an AT&T phone. I don't know all of the ways it is undesirable to use an AT&T phone on the T-Mobile network. I do know that updating software is problematic. I want to make this phone into a T-Mobile phone, so that when software updates are available it asks me if I want to install them and so on.
Now I'm getting into unfamiliar territory. I believe my CSC is G935AUCU1APB4. (This is called my 'baseband version' in the settings menu.) From 'PB4' I get that this firmware is from February 2016, version 4. My model is G935-A and what's in between tells me something about my country and original Android version, maybe. So when I go looking for a late version of T-Mobile's firmware for my phone, would it still start with G935A, or would it perhaps look like G935T (for T-mobile)? Or perhaps G935U (for unlocked?) Anyway, my first big question is what firmware package should I look for and how do I know that is the right one?
After that, well, I have never manually flashed firmware into a phone. I see references to Odin and SmartSwitch and sammobile. Well, shoot. I figure I can learn any of these packages. Which should I use and why?
That's enough for now, thanks for reading!
metalmagpie
metalmagpie said:
I'm new to XDA and not very expert at Android. I used to use a T-Mobile Samsung Galaxy S6 with T-Mobile as the carrier. I recently bought a used AT&T Samsung Galaxy S7 Edge, and have succeeded so far in getting it unlocked so it recognizes my SIM card. So my phone is up and running. However, it is still an AT&T phone. I don't know all of the ways it is undesirable to use an AT&T phone on the T-Mobile network. I do know that updating software is problematic. I want to make this phone into a T-Mobile phone, so that when software updates are available it asks me if I want to install them and so on.
Now I'm getting into unfamiliar territory. I believe my CSC is G935AUCU1APB4. (This is called my 'baseband version' in the settings menu.) From 'PB4' I get that this firmware is from February 2016, version 4. My model is G935-A and what's in between tells me something about my country and original Android version, maybe. So when I go looking for a late version of T-Mobile's firmware for my phone, would it still start with G935A, or would it perhaps look like G935T (for T-mobile)? Or perhaps G935U (for unlocked?) Anyway, my first big question is what firmware package should I look for and how do I know that is the right one?
After that, well, I have never manually flashed firmware into a phone. I see references to Odin and SmartSwitch and sammobile. Well, shoot. I figure I can learn any of these packages. Which should I use and why?
That's enough for now, thanks for reading!
metalmagpie
Click to expand...
Click to collapse
OK, I have learned a ton in the last couple of days. Bottom line is the easiest way to update OS on an AT&T Samsung is to take it to Best Buy and ask the person at the Samsung counter to do it. I see no reason to believe that it is possible in software to make an AT&T phone look like a T-Mobile phone. And as far as flashing with Odin? What a totally buggy tool! I was NEVER able to make it get past "analyzing files" or maybe "file analysis". When you get down to switching cords from one USB port to another I figure you might just as well change your socks. Finally, there is a TON of crap advice out on the Web.
metalmagpie
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.
I've recently gotten my new Note 20 Ultra from T-Mobile, which will become eligible for unlock in a few weeks or so.
At this point, I would like to debrand the phone, however possible, to where it becomes no different than a stock Note 20 Ultra I could have bought from Samsung.
I've done a bit of reading, but as this is a new phone, I'm largely looking at older posts, and posts about models different than mine. Specifically I have a SM-N986U with what I believe to be the TMB CSC
(Provider software version is SAOMC_SM-N986U_OYN_TMB_QQ_0019) This is the US Snapdragon phone
In my reading, I've found I can get download a stock ROM from Samsung using Frija, and flash it using Odin on a Windows machine, presumably with ADB, fastboot, and the appropriate drivers for the phone.
There are things I am hazy on, which is why I am asking for help here.
What CSC would I need to supply Frija in order to get a stock unbranded Note 20 Ultra ROM
What are the risks of me blowing the Knox fuse? I've seen reports of people having tested flashes to Exynos, and as it's a from-Samsung image, and having their fuse be intact. Ultimately it's not the largest loss if the fuse blows, as the only feature it would take from me is Samsung Pay, which I do happen to use.
Presumably, there are settings I'd need to tick for Odin in order to not disturb the Knox fuse, I'd need to know what those are.
Ultimately, I'm primarily looking to use stock implementations of things like cellular networking and specifically VoWIFI, which seem to have really really lazy implementations by T-Mobile (I can't use VoWIFI unless I am within usable range of a cell tower, for example)
Anything anyone can tell me would be excellent, and I thank all for reading carefully and providing any useful information.
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