hello, i flashed the lightrom in twrp today and started having some issues, when setting up the phone i can no longer setup my fingerprint scanner also when setting up a pin it will accept it then keeps saying try again when entering the pin. i've had a good look online as to see what the problem is but cannot find anything about the problem i am having. would be great if someone can help me out with this problem. thanks
well after a couple of days i have now managed to fix my problem. my /efs must of been corrupted, after looking online i found out no working pin or fingerprint and many other problems can be caused by /efs corruption, also i could ring out but my mobile data was no longer working either. all this because of /efs corrpution. luckly i had my efs backed up. after again installing light rom both my pin and fingerprint and mobile data or now fully working.
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I bought the N910F a few weeks ago. I'm traveling so I had it unlocked in Bangkok to use other Sim cards. That's when my problems began.
They rooted the phone and changed my IMEI number. The result is: Knox flag tripped, fingerprint sensor not working anymore (error), losing WiFi passwords (had to do ro.securestorage.support=false to fix it) and worst of all lag and bad battery life. I can't even watch a HD movie without lag. AnTuTu score 36000.
The efs folder is empty (not mounted). I have no backup of the folder. The phone functionality works fine. I got no problems with any Sim card. I have a valid imei, just the wrong one. I tried firmware installation and initialization with Kies, but it didn't change anything.
I'm traveling through Asia for many months so I can not get a replacement or send it in for repair at home in Europe.
Do you have an idea how I could get my original imei back? or how to mitigate the issues?
I had a very similar problem, I thought I was sunk. But then I found THIS post, I used the Edit 2 method and it worked a treat, hope you have similar luck. If you don't have TWRP, then I'd recommend you install it, can be a real lifesaver.
thanks for the link. it worked partially. I managed to mount the efs folder. the partition for n910f is mmcblk0p13! I used the terminal emulator on my rooted phone with busybox. no need to use recovery.
the bad thing thing is, I still don't have my original imei. the good thing is, my fingerprint sensor works again, I don't need the Wi-Fi fix with ro.securestorage. support=false and the phone feels much faster, less laggy now.
kinda happy with that. If I had the efs backup now....
would a initialization with Kies restore my original imei?
Sorry, I really can't say, I've never used Kies. Glad it seems to be running better now.
Should have mentioned the partition on a N910 is /dev/block/mmcblk0p13, getting old and forgetful, LOL.
That's a bummer OP - a non-factory unlock on newer Samsung phones involves writing another phone's hacked EFS data.
If the store didn't do a backup of your old modem data, your original IMEI is gone.
DO NOT attempt to use Qualcomm NV Tools to change your IMEI back to stock. (Guess how I wrecked my Note 3 the first time around!) - you need a valid IMEI Certificate to access 3G/LTE networks so you'll be stuck in 2G mode.
Samsung service centers have the tools to write any IMEI they want and generate the valid certificate, though it'll be expensive. I'd just advise OP to Odin to stock and wipe data, then root and disable ro.securestorage.support.
Having a wrong IMEI's not too bad, although a big no-no in terms of the GSM standard.
1) I think I have a valid certificate for my 'new' imei. Mobile data connections work fine and fast (H+). I prefer my original imei though.
2)why should I disable securestorage.support? It works fine enabled.
gattacus said:
1) I think I have a valid certificate for my 'new' imei. Mobile data connections work fine and fast (H+). I prefer my original imei though.
2)why should I disable securestorage.support? It works fine enabled.
Click to expand...
Click to collapse
As part of the unlocking process, they wrote a new (rather, copied from another phone) IMEI to your Note 4. It'll work just fine. However, the IMEI may be shared with other phones, and may one day be blacklisted. When/If that happens, you'll need to write a new IMEI again.
I think I didn't come across right the last time - don't try to change your IMEI to your original one with Qualcomm NV Tools without a matching, proper certificate for it. It's a world of hurt.
As for ro.securestorage.support, it _might_ be needed for keeping WiFi passwords saved on reboot. Or not. IIRC, my rooted Note 3 needed it set for WiFi and S-Health to work right. I'm staying unrooted on my Note 4, so I don't know if you'll still have to do that.
I will go to a service center and ask if they can restore my imei but it doesn't seem to be urgent now. I just hope that a kies install of lollipop doesn't bring back the problems (unmounted efs).
WiFi passwords survive a reboot without the fix. So far so good.
Thanks for your help.
rastus.rob said:
I had a very similar problem, I thought I was sunk. But then I found THIS post, I used the Edit 2 method and it worked a treat, hope you have similar luck. If you don't have TWRP, then I'd recommend you install it, can be a real lifesaver.
Click to expand...
Click to collapse
Your post helped me a lot. I just wanted to say that you made my day. THANK YOU!!!!!
you can use darkmed repair tools
gattacus said:
I bought the N910F a few weeks ago. I'm traveling so I had it unlocked in Bangkok to use other Sim cards. That's when my problems began.
They rooted the phone and changed my IMEI number. The result is: Knox flag tripped, fingerprint sensor not working anymore (error), losing WiFi passwords (had to do ro.securestorage.support=false to fix it) and worst of all lag and bad battery life. I can't even watch a HD movie without lag. AnTuTu score 36000.
The efs folder is empty (not mounted). I have no backup of the folder. The phone functionality works fine. I got no problems with any Sim card. I have a valid imei, just the wrong one. I tried firmware installation and initialization with Kies, but it didn't change anything.
I'm traveling through Asia for many months so I can not get a replacement or send it in for repair at home in Europe.
Do you have an idea how I could get my original imei back? or how to mitigate the issues?
Click to expand...
Click to collapse
you can use Darkmed S7 S7 Edge Imei Cert Repair Tool v.1.1.7 and I am sure, they will solve your problem.
allan maanson said:
you can use Darkmed S7 S7 Edge Imei Cert Repair Tool v.1.1.7 and I am sure, they will solve your problem.
Click to expand...
Click to collapse
This post is really old bruh ?
Sent from my SM-N910G using Tapatalk
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
Hello everyone,
As this is my first thread, and I have been reading previous assists based on IMEI fixing and couldn't find the answer I am looking for, I really hope that the XDA community can help me fix my Galaxy S4 I9500. I will try to explain the problem the best I can, and I will create a list of every solution I have tried in the 3 week phone fixing saga I have.
1. The problem :
My friend decided he does not need this phone anymore, everything was fine with it except the battery was swollen(but I bought a new one so it doesn't matter). The day before he gave it to me, he accidentaly dropped it in the toilet and it couldn't boot. I opened the phone, cleaned it with alchohol and the phone booted up normally. The thing I noticed was that in the status bar the network symbol was replaced with No signal symbol. I tried 3 SIM cards and none worked. I decided to downgrade to 4.4.2 KitKat version and this is where everything went even worse. I used Odin to downgrade a firmware downloaded from sammobile.com, but I didn't create an /efs backup because I have flashed an Alcatel Idol 2 before and there were no problems with the IMEI or so. It turns out that Samsung devices are different and I am left with NO EFS BACKUP. I know, I should have checked what to do before flashing the device, but what's done is done. The device is doing everything great, there are no problems with Wi-Fi or Bluetooth either, except I cant connect to a network because IMEI is null/null and the Baseband is unknown. The thing is, I am not sure if the IMEI is wiped completely because of a hardware problem, or it's software related because of the /efs folder, because I am not a developer, but a civil engineer...
2. Solutions I've tried so far :
- Flashed many different Android versions;
- Flashed a Lollypop with adonis.pit with Re-partition checked on Odin;
- Tried writing an IMEI and repairing the EFS with Octoplus box;
- Tried flashing an EFS backup from my friend's Galaxy S4 I9500 ( IT IS ILLEGAL IN MANY COUNTRIES, NOT IN MINE, BUT I WANTED TO TRY AND CHANGE THE IMEI LATER SO IT WOULD NOT BE A PROBLEM );
- Tried flashing with a IMEI_null_fix.tar.md5 file which i found on a forum and that didn't fix it either;
- Tried KIES to return the stock ROM but either it does not recognize my device, or it says that my device could not be initialized or so;
- Took the phone to service, but in my town the only service we have is not very professional and they didn't even know the IMEI null does not mean that I will have no wireless connection/bluetooth connection, so they didn't fix it either;
- Tried with EFS Pro, Terminal Emulator and programs similar to those, 3rd party and PlayStore ones;
- Maybe other things but I could not remember because I think I tried everything...
I don't know if the problem can be fixed, but deep inside me I hope that there is a solution, and I think this is the best place to search for help, because it is a great phone and I don't want to throw it away just like that.
Thanks in advance everyone, hope you can come up with a solution.
Hello, i need some help...
I've already searched and tried a lot of ways to fix my problem but nothing worked.
Suddenly the Wi-Fi of my Op5 stopped working, i cant even turn on... And also the phone doesn't recognize sim cards. The phone isn't rooted.
I've already made factory reset, flashed another rom, cleared cache, etc...
Thanks in advance.
Check if Your both sim's IMEI and WLAN MAC address are displayed correctly.
Sounds like corrupted EFS partition to me. Try to restore backup (if You have one). I think You can't fix this issue without a backup. So only way is to send it to OP for repair (i guess on warranty it should be free).
hello,
so I bought a oneplus 7tpro ME (HD1925) online, the guy said it had glitchy settings menu (settings works fine but wifi closes) and thought a simple flash to stock would fix it.
got the phone and it shows no imei, doesn't connect to wifi or bluetooth, and shows unknown baseband. everything else works fines
I have searched and seems to be a corrupted efs or what ever. any suggestions? i have done a flash to stock using msm, updated via reverse tethering and nothing has worked.
Any Suggestions?
thanks in advance
tqsinc said:
hello,
so I bought a oneplus 7tpro ME (HD1925) online, the guy said it had glitchy settings menu (settings works fine but wifi closes) and thought a simple flash to stock would fix it.
got the phone and it shows no imei, doesn't connect to wifi or bluetooth, and shows unknown baseband. everything else works fines
I have searched and seems to be a corrupted efs or what ever. any suggestions? i have done a flash to stock using msm, updated via reverse tethering and nothing has worked.
Any Suggestions?
thanks in advance
Click to expand...
Click to collapse
The persist partition is corrupt. You can find a link to one floating around this forum somewhere; it should fix everything except your fingerprint scanner. That is toast without RMA. The instructions to fix the FP scanner won't work for you since your persist is entirely corrupt (not just the fingerprint sensor part).
starcms said:
The persist partition is corrupt. You can find a link to one floating around this forum somewhere; it should fix everything except your fingerprint scanner. That is toast without RMA. The instructions to fix the FP scanner won't work for you since your persist is entirely corrupt (not just the fingerprint sensor part).
Click to expand...
Click to collapse
my fingerprint scanner works but seems i am out of luck