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i'm sorry for the long post, i really appreciate your help
i really need help to get this galaxy s3 GT-I9300 to regonize my sim card.
i bought it from ebay i've used it for a long time works fine,
but because it's an unlocked version and from ebay i'm not sure what region it is
i messed with rooting and stuff and decided to do "restore to stock".
i thought it'd be easy like the nexus or iphone, i followed this guide. it restored the system apps/firmware fine but still keeps all existing data instead of deleting them like it said.
and then when it boots it shows "LaFleur" which i never saw before
and now it's "emergency calls only" does not recognize sim (100% not the physcial sim card problem)
i tried this but did not work.
i also went to settings -> mobile networks-> search results were AT&T (correct carrier i'm using) but it says "your sim card does not allow a connection to this network"
i know i made something wrong with the software not hardware but i can't understand why official tool (Samsung Kies) broke my device.
Please help because i receive a lot of calls so i need to get this working again ASAP. Thanks a lot
I'm sorry i just realized that i posted in the wrong forum, it should be in Q&A
By using kies you've restored what ever firmware the phone was manufactured with, it doesn't sound like an unlocked handset.
Instead follow the guide in general forum, stickies, to flash your own countries generic rom, then factory reset.
Your network issue is likely to be a result of the handset not being properly unlocked. None of the free patches to unlock work with newer firmwares -by updating you've reinstated the network lock. If you made a backup of the efs folder before you started then you might be able to restore and go back to a firmware that can be patched.
Otherwise you've have to buy an unlock code.
Sent from my GT-I9300 using Tapatalk
I also have the feelings that this phone was not properly unlocked. So the eBay guy sold me not a factory unlocked version but a version he unlocked on his own?
Forgot to mention my IMEI is now 0049... My baseband now has "BELL" in it (Canada carrier?) Also it does show the phone number in About-Status. But network state is out of service.
I don't understand how an official program changed my IMEI to a generic one and I have no EFS backup.
Mod Edit
Please refer to the stickies in General before posting.
Thread closed
malybru
Forum Moderator
Long story short, a week ago I tried to encrypt a new rom and the rom did not show the encryption process, and after 3 hours I thought something went wrong and rebooted it. This is where the problems started. I obviously corrupted my EFS.
I tried installing stock firmware from sammobile, several different versions, and none worked. I looked through dozens and dozens of threads on here, and other sites, and found various solutions for EFS problems but everything entailed making a copy of the EFS and restoring it. Before I found these, I tried something else (I can't remember what), and apparently destroyed my EFS and was stuck at bootloader. After a lot of research I found a thread on here, for recreating the EFS partition, which allowed me to boot my phone into Android again, except it is stuck in factory mode. Network was still not working, IMEI was still wrong. After flashing a new modem, my phone detected my simcard, shows network detected, I can choose my APN and network, but network is still not working. No data, no sms, no calls. I've flashed several different stock firmwares again, and phone is still in factory mode, and IMEI is still on 0049. Factory reset and everything, wiped cache, flashed latest TWRP. I installed root browser, and it is showing the necessary files and folders in the EFS folder. Oh, and knox has been tripped, so no official firmware upgrade through Kies.
Before someone suggests sending phone in for repairs, or giving up hope, the fact that flashing the modem has gotten the phone to recognise the simcard and my carrier details, that must mean that there is some solution. Question is, what is the solution? I have gone through more threads than I can count with regards to EFS corruption and such, and I have searched for a solution to the problem but I have not found anything yet. There are no original EFS backups on my phone, and the only equipment I have are my laptop, Odin, and the internet. There aren't any service centres nearby either, which means my phone would need to be sent in for repairs, which can take anything from a week to a month. Does anyone have an idea on how to solve this problem? I can't imagine that I am doomed, considering the progress I have made.
Well, your main problem is this: The IMEI is NOT in the EFS folder, because the nv_data.bin file that used to be located in that folder was moved to a hidden partition on the device at some point during the lifetime of the S4. So even if you backed up the EFS folder you'd still be out of luck. A more comprehensive tool like Wanam's EFS Backup tool would have helped, since it not only does a backup of the EFS folder but the hidden partitions where the modem, its backup, and several other crucial pieces of information are stored, including the IMEI.
That said, there may still be hope for you. Attempt to flash your ROM through Odin, but also use a PIT file for your device, which can be found on the forums. It will recreate your partitions, and in doing so may resurrect your IMEI. However, if that does not work, you will have no choice but to send the device in for service.
Hi everyone,
My S4 has lost its IMEI, and here is my situation.
I was using Prism v14 (http://forum.xda-developers.com/showthread.php?t=2537515), and it was totally fine. Last night, I tried to flash a new S6 port rom, this http://forum.xda-developers.com/galaxy-s4/i9500-develop/rom-aurora-s6-port-t3063408, and my fone lost its signal. The signal icon is still full, but it was only available at emergency calls. When i check, IMEI and Serial number were still there. I tried flashing the Prism v14 again, didnt fix it.
Then I took my fone to the care center and left it there for a few hours. When i come back, they told me that, they flashed it back to stock, and when i ceck, the IMEI was gone. They explained that, when I flashed the S6 port rom, the real IMEI was gone, it was only the fake IMEI from the rom that I saw (didnt know if this was true).
So now im asking for any possible help/solution. I was bad to forget backing up my EFS. So i wonder if I can use someone else's EFS to restore? If yes, it would be great if any one can share with me the EFS backup.
Thank you for reading and please excuse my bad English.
The EFS folder doesn't store the IMEI, despite having an IMEI folder, thus it won't help you. nv_data.bin also will not be found there, if my S4 is any indicator, but will be found in the hidden partitions.
You'll need to try flashing the baseband for your device again, and to do that you're going to have to download a copy of the ROM, which should be found on the forums here. Sometimes the baseband needs to be flashed twice for everything to properly work. I can only speculate why that is, but I believe it to be due to having two hidden partitions for the baseband. When the baseband is copied into the first partition it isn't copied into the second, resulting in a mismatch. Flashing the baseband a second time writes the baseband to the second partition, and everything functions correctly.
If flashing the modem again does not work, getting your IMEI back will require using methods that cannot be discussed here on XDA.
I have a Note-4 T-Mobile variant(N910T), I have been using Xenon HD and then CM 12.1. After a while when I wanted to go back to stock, and when I flashed stock rom back, the phone was really laggy at first and during setup, there was a popup which said that Factory mode is enabled and I have to switch back to User mode before using it and after a few seconds it disappeared, this happens every time i reboot while in Stock Rom. Somehow after a few minutes, I get the WiFi on again but the keyboard gets stuck after a few presses and phone gets real laggy. After the setup I googled the problem and found out something regarding the EFS Folder, so I rooted it once again and installed ES File explorer and went into EFS and found that it was empty. I tried placing a phone call and it went through and I was also able to use LTE, but when I went to about phone to see IMEI, i saw that the IMEI was also correct, I even tried to setup fingerprints, but it kept saying me to reboot as something was wrong with the fingerprint sensor. Now the weird thing here is that when I am in a Non-touchwiz based Custom Rom, I do not find any lag or any of the problems mentioned above. I have tried these things already:
Going to EFS and switching Factory mode on, but as i told EFS folder is empty.
Backing up EFS from the custom and restoring when I'm in Stock(EFS is empty even in Custom too).
If anyone knows how to fix this, could you please help me?
Thanks!
Hi Sir,
I have the exact same issue as you on my Note 4... Did you manage to find a fix for this??
Please let me know..
Thanks
Hello Sir,
I managed to fix it... I used this guide...
http://forum.xda-developers.com/showthread.php?t=2471421
Try it out... Credits goes to Steve Lazarus for that article.
after factory data reset my Samsung note 4 sm-n910f showing international and no sim now on notification bar and if so I insert sim n power on it shows invalid sim
Hi there! this is my first thread. i bought a new mainboard for my s7 edge cuz my original one fried. i saw that the mainboard had its imei erased and it doesnt have a serial number. i did flash it with a custom one ui rom. right now i tried to edit the two svc files in the "sec_efs" folder by changing the device id with the imei from my original board and the serial number also from the original one and i still dont have imei or sim conectivity. any suggestions to what to do?
Whatever it is, it's not good...
smecherasu15 said:
Hi there! this is my first thread. i bought a new mainboard for my s7 edge cuz my original one fried. i saw that the mainboard had its imei erased and it doesnt have a serial number. i did flash it with a custom one ui rom. right now i tried to edit the two svc files in the "sec_efs" folder by changing the device id with the imei from my original board and the serial number also from the original one and i still dont have imei or sim conectivity. any suggestions to what to do?
Click to expand...
Click to collapse
Have you your first s7 edge efs backup..... Just flash it.... It's must necessary a twrp efs backup... After that everything will be done