yashsingh1/xdaforums huggingface dataset:
[Galaxy S6 Q&A, Help & Troubleshooting] brenner650:
[MENTION=4143130]lummujaj[/MENTION]

Well, I have been at some 3rd party Russian guy with Z3X box when i had IMEI issues, been asking him some questions about EFS partition, he said he doesn`t know what that is lol, and that he is only using Z3x box + another hw device to flash fw and unlock phones (he was calling me to ask how to fix stuck on logo issue lol)

Unfortunately in Prague where I am, I don`t know any "PAKISTANI , INDIAN" guy who has a 3rd party store :D

But, I went to buy external disk with my gf today, and they had G920F on the display so i quickly entered *#0011# just to check it out, and there was stack 1 and stack 2 option, like on my phone, so I am guessing G360F has slightly different info there.

Unfortunately my gf wasnt happy that I am messing around phones again, (spend too much time playing with my G920F) so I did not have a chance to take a photo serving cell info to compare the data with my sc info.

[MENTION=6836059]tazaga[/MENTION]

I found some guy`s efs backup online and download it, and restored to my phone, but that led me to reseted IMEI, so i restored backup I made before trying that.

It would be great if it would work with your efs :)

As for sn, it was also changed, but I wrote it in a sn file I found in EFS folder, and it appears correctly in IMEI info in settings/about the phone.

Anyway I am anxious to try your method, and hope it will work, at least to have SIM recognized, and basic things like phone calls and sms operational, until I found someone who can actually restore the phone to its original functions.
[Galaxy S6 Q&A, Help & Troubleshooting] tazaga:
Which app do you use to make backup ? In order to make you backup on my phone...
[Galaxy S6 Q&A, Help & Troubleshooting] brenner650:
I did it with twrp recovery, but if you are doing it with some app, I can download it.
[Galaxy S6 Q&A, Help & Troubleshooting] tazaga:
here is efs backup with how to get back original imei inside use apps inside https://www.mediafire.com/?loh80547x1k5cg8
[Galaxy S6 Q&A, Help & Troubleshooting] lummujaj:
They call me here if they stuck sonewhere ... I own plenty of cert files. Almost for all new Samsung devices. Ive a friend who gives me them. We corporate .. He stuck at bootlogo bcoze he didnt know to root. Always happens with s6 ... Im 99% sure your phone need just to flash a cert file ... Im sorry you had bad luck eith that Russian guy ... Root the phone yourself and go to him. Also he must have z3x pro ... Its very simple procedure. If he dont know ask him to do it yourself. Or say you will teach him if he let you finish the phone

---------- Post added at 02:20 PM ---------- Previous post was at 02:18 PM ----------

This is not a problen of IMEI cert. I guarantee it ... I had s6 with factory imei and at my home didt get more than 2bars LTE eith it... Now i own OPT and i have full bars... S6 has so bad signal reception
[Galaxy S6 Q&A, Help & Troubleshooting] tazaga:
no you didnt understand what is the problem

the problem is i got new 920f working awsome with updates from samsung and Knox working but in few days i got emergency call only when i checked imei i found it 350000000000000 and it i didnt made backup

and i flashed stock evrything...nothing changed then i took it to repair place he fixed it with octoplus or zex box (i did buy 920F because its Global and for roms i didnt wanna buy my country version because it sucks and no one make roms for it....so i didt get him fixed with difrent imei and difrent Sasung serial number but i managed to set back original IMEI and S/N info ...just in case wanna sell it later...but the problem is when i switched to LTE time time the signal drops in split sec but when i switched to gprs it never drops....i think i need some optimized radio.img or some stuff...if you can hook me with old radio.img version ill flash it

and this is the case for all who got this problem
[Galaxy S6 Q&A, Help & Troubleshooting] lummujaj:
I understand bcoze i had g920fd ... I had problems and sometimes i just recieved sms from operator for missed calls. I was in the 4G connected but when i left the area of 4g my ohone didnt switch fast to wcdma or gprs it took some time. 15/20 min . sometimes more. Its a common problem of samsung galaxy series . ive faced this in all

Edit : ofc its drops in bars in lte its heavier radio interference...i always switch to 2g when i get back hope to save battery
[Galaxy S6 Q&A, Help & Troubleshooting] brenner650:
[MENTION=6836059]tazaga[/MENTION]

Thanks for efs backup, I restored it to the phone yesterday, IMEI turned to unknown, and sn changed, probably to yours, and tried to change it with apps you provided.

IMEI changer force closes, and device ID changer does not seem to change IMEI after reboot.

Mobile networks menu is still missing from settings menu, and SIM is still not recognized :(

But i managed to flash official fw, through Smart Switch, and now it boots without unikernel. (before it was stuck to Samsung logo)

Been rather busy yeserday, so I did not have much time to play with phone, this moring battery is empty, so I will recharge it and give it a try again later.
[Galaxy S6 Q&A, Help & Troubleshooting] tazaga:
1 install root

2 install xposed installer

3 install busy-box pro

4 install device id changer pro 1.5.1 app (activate it on xposed installer)

5 restart phone

6 change imei with device id changer 1.5.1 pro app

7 restart

8 check imei dial *#06#

9 if the app didn't work use ( imei changer pro 1.2 app "activate it on xposed installer" ) but don't uninstall device id changer..

10 restart phone

11 change imei with imei changer pro 1.2 app

11 restart

( it works for me i can change my imei to whatever i want to....S/N is easy only modify serial_no file inside \efs\FactoryApp )
[Galaxy S6 Q&A, Help & Troubleshooting] NKRGS:
to install xposed correctly take a look at this thread http://xdaforums.com/xposed/unofficial-xposed-samsung-lollipop-t3180960

download xposed installer 3.0 then for 5.1.1 you need xposed-v80.0-sdk22-arm64-custom-build-by-wanam-20160211.zip.after installing both follow tazaga's instructions :)
[Galaxy S6 Q&A, Help & Troubleshooting] batuzai04123:
Naah, you may bring it to Samsung service center or to any 3rd party repair centers, mine was fixed using octopus box :)

It will cost you more time and effort trying to find fix on your damaged NVRAM issue (IMEI,SN, etc). Once you had your phone back from service, just backup your efs once again, and make sure you do the safest way on flashing/modifying your phone :)

---------- Post added at 11:48 AM ---------- Previous post was at 11:45 AM ----------

LMAO, I haven't updated that post since my S6 was stolen :(
[Galaxy S6 Q&A, Help & Troubleshooting] brenner650:
update:

after half a day at work on Monday, phone went bootlooping with stock fw and kernel, so on my way home i stop by to a repair shop, guy took phone and told me to call tomorrow.

Tomorrow when I called, he told me to call again tomorrow, so I called him yesterday, he said that they cannot fix the phone, but if I want he can take it to some other guy, who might be able to fix it, but he did not know for sure, so we agreed that he will call me back today with some info.

I am starting to loose all hope of fixing that phone in Prague.

This is 3rd time i gave it to a 3rd party repair shop and they couldnt repair it.

In most cases, when I tell them what I tried, they look at me like I am from Mars. :D

In 1st, when I asked guy about EFS, he said that he does not know what is that. XD

In 2nd, guy was selling me the story about how the phone does not have CZ fw on it so they cant repair it...ffs

I wonder, ....where do I find those guys...
[Galaxy S6 Q&A, Help & Troubleshooting] tazaga:
Just flash it again stock from there try to flash custom rom like arter rom...and kernel...look as long you can enter download mode you can fix it...people tell you take it to Samsung right but not everybody buy samsung smartphones from the Samsung ( we buy it from other guy with cheap price ) as I said try stock then download arter97 rom arter97 kernel philz recovery...you will be fine

---------- Post added at 11:03 AM ---------- Previous post was at 10:56 AM ----------

Yeah man the most retarded people I ever seen is those people work in repair place some times Samsung themselves they just tell you we going to replace this hardware instead of just put back the phone in he's factory settings...it's...slavery world we live in this day's everybody try to suck your blood somehow....
[Galaxy S6 Q&A, Help & Troubleshooting] brenner650:
Phone is back from 3rd party repair shop, and guess what, they could not fix it :D

Offcourse not to make things easy for them, I left it with [MENTION=6836059]tazaga[/MENTION] efs backup, that means different IMEI and a bootloop, stock ITV fw, recovery and kernel, fresh from a Smart Switch.

What did they do?

Flash Unikernel, and said they cannot repair it LOL XD

Offcourse when I brought the phone to shop, guy there wouldnt even try to listen to me when I tried to explain him the issue, keep interrupting me and telling me to call tomorrow.

What a bunch of noobs even bigger than me :D
[Galaxy S6 Q&A, Help & Troubleshooting] wilksy1:
The imei number has been blocked/blacklisted by the original phone company that sold the phone for either reported lost/stolen phone by previous owner, it doesn't matter what you do with the efs partition im sure the emei number is embedded in a hardware chip on motherboard and if it doesn't match the info in the efs partition it acts as a blacklisted imei phone, some cheaper chipset android phones from china can have imei rewritten, but i think more expensive phone it can't be done unless you replace the motherboard with the same model MB from a supplier from aliexpress website, the sm-g925f/i model MB is about $350.00 Australian dollars with EMS express postage included you get it in about 4 or 5 working days, its the only way i could get my sm-g925i s6 edge working after blacklisted emei, its expensive but its the only way to convert it from a paperweight, I wasted heaps of time trying other ways with people claiming all sorts of methods but was just wasting my time none of them work an i couldn't find any evidence that they did, if you cant afford a new motherboard just sell it in pieces on ebay to recover any lost money the screens are worth a $100.00 atleast secondhand, or just use it as media player, dont waste your time with other methods unless you really like fuking around with mobiles.
[Galaxy S6 Q&A, Help & Troubleshooting] brenner650:
I went to Samsung repair center yesterday, they told me that their company policy is to change motherboard in case of software modification of any kind (knox triped), and the price is 8800 CZK, which is roughly the price you mentioned (350 USD).

I still think that NO SIM issue has more to do with security/networking and IMSI, rather than IMEI block (correct me if I am wrong).
[Galaxy S6 Q&A, Help & Troubleshooting] brenner650:
...done some more flashing and screenshots of phone status, but still NO SIM :/

but will drop by that Russian guy with Z3X box otw home, from work.

One more thing is bothering me, should that android serial number have all capital letters like IMEI only or not, and ARFCN in service mode should be on which value?

[ATTACH]3676311._xfImport[/ATTACH]

[ATTACH]3676312._xfImport[/ATTACH]

[ATTACH]3676313._xfImport[/ATTACH]

[ATTACH]3676314._xfImport[/ATTACH]

[ATTACH]3676315._xfImport[/ATTACH]

[ATTACH]3676316._xfImport[/ATTACH]

[ATTACH]3676317._xfImport[/ATTACH]

[ATTACH]3676318._xfImport[/ATTACH]

[ATTACH]3676319._xfImport[/ATTACH]

[ATTACH]3676320._xfImport[/ATTACH]

[ATTACH]3676321._xfImport[/ATTACH]

[ATTACH]3676322._xfImport[/ATTACH]

[ATTACH]3676323._xfImport[/ATTACH]
[Galaxy S6 Q&A, Help & Troubleshooting] huzi7868:
I'm in the same boat as you I flashed 6.0.1 and came up with the issue emergency calls only
[Galaxy S6 Q&A, Help & Troubleshooting] brenner650:
phone is now at that Russian guy with Z3X, he said he has to test it (whatever that means), hopefully maybe he would manage to do something with SIM recognition issue.
[Galaxy S6 Q&A, Help & Troubleshooting] brenner650:
Got an sms from that Russian guy with Z3X today, he says that during flashing NV_ram partition got corrupted, and that there is no way he can fix it with Z3X without a backup. :(((

Is the motherboard repacing the only solution to this issue, or it can be fixed some other way?

Any advice would be welcome.
[Galaxy S6 Q&A, Help & Troubleshooting] wilksy1:
Unless you went into the phones settings and started changing the apn settings or fuking with the efs partition when flashing custom roms its a blacklisted/blocked/not going to work properly ever imei, i went and brought a heap of different prepaid sims and tried them all, the only problem is all the smaller phone companies are own by the 2 or 3 big companies in each country, i could get my phone to work with a brand on sim card called ''amaysim'' its for international use really so not that good for everyday use, and amaysim was a emaller company owned by optus the original issuer of the phone so i was shocked to see it worked, check your imei number on google search and it will tell you if its fuked or not, its located under the rear glass cover on battery.

---------- Post added at 02:20 AM ---------- Previous post was at 01:53 AM ----------

Its a blacklisted imei number, tryng anything else but buying a new motherboard from alliexpress that has had a new imei chip on it is just wasting your time , I spent weeks fuking around flashing this and fuking with that, and got nowhere and there's no evidence i could find that there's a way to fix it,$350.00 Australian dollars gets you a new MB, BUT BE WARNED THE GALAXY S6 EDGE G925F/I are awful pieces of **** phones, the network signal for 3g 4g is really bad drops out all the time ,it runs really hot to the point you can barely touch the front and back glass, and the battery lasts for a matter of hours at best if your using it, its really slippery to hold onto aswell, the signal problem but is the worst its so bad, my galaxy s3 ive had for years is on another level of better as a phone you can use i will never trust samsungs again its that bad they should be recalled, ive always defended galaxy's and owned heaps of them i keep swapping back every couple of days to my s3 and with its aosp custom rom and good design and signal it feels so much better than the slippery red hot s6 edge, after all the fuking around to get your s6 going you will be un happy with it .
[Galaxy S6 Q&A, Help & Troubleshooting] brenner650:
There is something that sounds prety much illogical in your reply [MENTION=4611529]wilksy1[/MENTION]

1) If IMEI is blocked, and lets say I go to Samsung offical repair store, and they provide me with a new motherboard on which they will write same IMEI that I allready have, wouldnt that IMEI allready be blocked. So how would that fix the issue (+ I get 6 months warranty on motherboard and everything would work as it shood, at least that is what they told me)

2) Who blocks IMEI? Operator? Samsung? And if I buy a new motherboard and Samsung write same IMEI to it, they will unblock it?

3) During my conversation with Samsung reprezentatives in their service centre (where they checked the phone and IMEI) wouldnt they told me if, for example, phone was stolen and IMEI blocked? (Or the phone can be stolen and IMEI blocked, but they don`t care if you are ready to pay 350$?)

All this sound a bit too surreal.

Now lets put OT aside, and go back to find the solution to this problem.

Colleague from work got same model, stock, unrooted.

Would it be possible for example to make a backup of his phone, copy it to pc/usb, and restore on my phone and after that restore my IMEI via Z3X or my EFS backup?

Theoretically if there is something corrupted that should fix it right?

I don`t even know if it is possible and how to make a full backup of fully stock phone, ADB maybe?

If so, with which commands?

It has been a rather busy day, so I didn`t have time to check his Android version, but if he has 5.0.1 and I 5.1.1 would it be still possible to restore his backup this way, and is there any chance that this could work?

Or he has to be rooted with custom recovery and same android version?

As for my phone I dont mind bricking it, but want to be shure that his phone will not be compromised.

Any advice would be wellcome.
[Galaxy S6 Q&A, Help & Troubleshooting] tazaga:
Dude that is bullsh***t the russian dont know sh***t i flashed 5.1.1 then my phone lost signal then i flashed 5.0.1 i stuck i flashed back 5.1.1 still no signal i deleted efs folder i installed stock 5.1.1 again no signal i took it to repair place with octoplus box he fixed it with difrent imei difrent s/n i can make calls and stuff but the signal drops time to time and back again

---------- Post added at 07:53 PM ---------- Previous post was at 07:47 PM ----------

Look Watch "Samsung SM-G800H Write Certificate with Octoplus Box" on YouTube

https://youtu.be/ZX4DOvJr0fA
[Galaxy S6 Q&A, Help & Troubleshooting] wilksy1:
If you get a new motherboard it has a different imei number every motherboard has a different imei, thats why they told you the only way to fix it is to replace motherboard, although the imei number is stored on the efs partition its also stored on hardware chip on Mb, and when the phone checks to see if they match and they don't you get an error, otherwise you could just flash any old phones imei number in an edited efs partition zip to your phone and have a new imei whenever you wantedI purchased a motherboard off alli express for 350.00 Australian dollars for g925f or i model galaxy s6 edge and you can see where they have removed original chip and replaced it. Trust me man ,nothing you can do other than convince the original phone company that sold the phone to unblock imei or get new or secondhand MB, I went through weeks of fuking around trying to get it going and nothing worked, im not at an expertat all, but have been flashing and jailbreaking phones for as long as its been possible and never again since the iphone 2g have i been able to properly change an emei number on the phones ive owned, ive seen recently people are flashing emei's to there galaxy s3's but thats about it, I might be wrong but if there was a way to fix blacklisted emei's on s6's it would be all over these forums.
[Galaxy S6 Q&A, Help & Troubleshooting] wilksy1:
A new motherboard has its own emei number a new different emei ****, stop writing ****, NO one not samsumg not some phone repair place can just go rewriting your old emei number to a new motherboard that already has a hardware chip on it with an emei already on it, that cant be fuked with modified/changed, the only way is to remove the hardware chip and reflow a new programed chip to the motherboard, i purchased my g925f/i motherboard from aliexpress and you can clearly see were they have removed shielding and replaced the chip with a different one than on the stock pcb from samsumg , they obviously buy phones like yours or stolen phones and they have the mega expensive machines that can reflow such tiny parts, look if its just a eaay to fix efs partition problem which there is heaps of guides on the net to help you fix it whether you have a backup or not,so youve either got an easy to fix problem and just dont know much about fuking with phones, if you dont have any experience with phones i doubt your going to be able to sort the efs corrupt partition fix out, just read all the guides how to do it, OR you need a secondhand or new whatever you want to call the motherboards they sell online to fix your phone, I wasted weeks of fuking around man, for nothing, its not worth wasting your time , either sell it as parts or fix it or its a really nice paperweight.
[Galaxy S6 Q&A, Help & Troubleshooting] bahmonkeys:
Hi read some of this long winded thread. Is your phone blacklisted from the network? Why don't u sell it outside of your country cut your loses. I have corrupted the efs folder a few times I have back ups so I was OK. I have the efs folder backed up and the radio. If you want to try it out for testing purposes I would be willing to forward it on to you. What country are you from?
[Galaxy S6 Q&A, Help & Troubleshooting] tazaga:
Dude it's not blacklisted it's samsung problem the 920f is very bad I have new Samsung I tripped Knox for root when I installed new firmware I got sim network invalid..
[Galaxy S6 Q&A, Help & Troubleshooting] huzi7868:
i have a backup of the phone before i flashed stock 6.0.1 was wondering if i restore it would it fix it plus back up was made when i was on 5.1.1
[Galaxy S6 Q&A, Help & Troubleshooting] brenner650:
[MENTION=4611529]wilksy1[/MENTION] I wrote the information that I got in official Samsung repair center, not the one I made up, or got from a third party. When I asked them will I get a new IMEI after they replace the motherboard, they told me that they will rewrite IMEI on a new motherboard as it is on the back on the phone and I got warranty on motherboard for 6 more months.

[MENTION=4278736]bahmonkeys[/MENTION] I found no evidence of blacklisting of any kind, the issue is that phone does not recognize SIM anymore, after numerous fw flashing/service mode tampering. Also band selection in service mode does not work.

I am in located Czech Republic, few times a year I am visiting Croatia and phone original fw is from Italy.

Once again I am asking is there a way to make a full backup of stock unrooted phone (system/efs/modem/all but data)?
[Galaxy S6 Q&A, Help & Troubleshooting] brenner650:
OT:

I came back from week and a half holiday on sunday morning, look at the phone, it had above 80% battery, after almost two weeks off charger. Thought it would allready be off, because of empty battery. That sure was a surprise.

Then check it out in a minute or two, battery droped to 6% and phone turned off.

Isn`t that weird or what?
[Galaxy S6 Q&A, Help & Troubleshooting] brenner650:
6.0.1. + Space X kernel, still no SIM :(

also made a bug report from developer options, if anyone can figure out what is wrong, and how to fix it, ill buy him a beer :D

Link to bug report:

https://drive.google.com/file/d/0BxV-ew8ep7njZGh6VUZ6UE5tb28/view?usp=sharing
[Galaxy S6 Q&A, Help & Troubleshooting] Frankbrazillian:
no sim issue

Hi.... i don't know if you already find and solution, but i'm pretty sure, your problem with no sim or no service issue, is because of the dm-verity verification failed. I got an similar issue with the Galaxy S6 edge(model svc31). If i install an custom firmware, i got the dm-verity verification failed on recovery... The signal bars appear on status bar, the network connection work if i setup correctly the apn, but i got no service and can't make calls and send sms. Installing the stock firmware, everything works perfectly. You need to flash the correctly stock firmware(untouched), to your device, to get avoid this issues.
[Galaxy S6 Q&A, Help & Troubleshooting] brenner650:
No, I still haven`t found solution to the issue.

Tried emergency initialization via smart switch, which installs ITV csc, but without custom kernel stucks on logo.

Tried installing ITV fw, downloaded from sammobile, result is the same.

If I flash any custom kernel, no sim issue appears.

Cannot set up APN, since I dont have mobile networks menu in settings, and running it via code, asks me to insert the SIM.

Turning modem off and on, via shortcut explorer code, changes nothing, changing band does not work.

Everything else works well, wifi, apps, camera, etc.

I have abondoned all hope of finding a solution to this issue, and it appears that I will have to pay a significant amount of cash to get the motherboard replaced in order to make the phone works properly