Baseband "unknown" / cant access cellular network. - Galaxy Note 4 Q&A, Help & Troubleshooting

I just recently flashed CM13 to my phone and since then i haven't been able to use my network. After looking about i got told to check my baseband number which turned out to be "unknown". I then checked my IMEI number which also turns out to be "unknown". Iv looked at countless posts on all websites to find a fix for this but i still cant seem to find one.
Update:
I have tried to backup my EFS files from my working backup and then restore them on CM13 but havent had any luck.
Iv also been told to update my modem to a 6.0.1 version but i havent been able to find one after searching everywhere.
If anyone can give me link to somewhere that i can download an updated modem or give me clear instructions on how to restore EFS partitions that would be much appreciated.

Is anyone able to help me at all with this? I will provide any screenshots necessary to fix this problem if i need to. I have also continued to look at more posts about how to fix this and still cant seem to find a working fix.

Sorry I don't know the answer but didn't you make full Backup before flash rom. Including esf partition.
If you make backup try to restore.

Chamaka said:
Sorry I don't know the answer but didn't you make full Backup before flash rom. Including esf partition.
If you make backup try to restore.
Click to expand...
Click to collapse
i made a full back up but i have no idea what esf partitions are. If i didnt back them up does that mean i cant fix this?

I have restored my stock rom and the network services work again BUT i still cant get them to work with CM13 or CM12.1

-JoshF said:
I have restored my stock rom and the network services work again BUT i still cant get them to work with CM13 or CM12.1
Click to expand...
Click to collapse
It's always a risk flashing a custom Rom. You must have a Nandroid backup or at least a backup of your EFS.

GrippingSphere said:
It's always a risk flashing a custom Rom. You must have a Nandroid backup or at least a backup of your EFS.
Click to expand...
Click to collapse
i have a nandroid backup of my stock rom and CM13 rom which includes my EFS. i would really like to use CM13 but i still cant get it to work. If anyone knows how to fix this issue on the newest nightly version please tell me.

-JoshF said:
i have a nandroid backup of my stock rom and CM13 rom which includes my EFS. i would really like to use CM13 but i still cant get it to work. If anyone knows how to fix this issue on the newest nightly version please tell me.
Click to expand...
Click to collapse
I haven't flashed a CM Rom since my Galaxy S1 days 6 years ago. I did experience then what you experienced now, getting a corrupted IMEI. I'm not in a good position now to help you as I don't have much experience in CM Roms. Best to ask help from the CM thread.
Alternatively, you can try some EFS backup and restore apps from Playstore to restore your EFS (one of which is Flashfire by Chainfire), or you can search in Xda how to restore a backup of your EFS.

i have updated the post with a little more information if anyone could please help me with this issue that would be great.

anyone willing to help me with this?

Related

Please help me! my phone is screwed

Hey I'm from india and own an i9500
bought 5 months ago
I was using my phone normally and flashed a stock rom with ODIb
the phone booted up.
The problem is that I have emergency calls only and my IMEI has been changed to Fake IMEI
1) my phone is out of warranty as some moisture traces have gone into iy and samsung asks for 200$ for every small problem they need to change the board
2) I don't think so I have the EFS backup
Please Oh please someone guide me what to do?
usama492 said:
Hey I'm from india and own an i9500
bought 5 months ago
I was using my phone normally and flashed a stock rom with ODIb
the phone booted up.
The problem is that I have emergency calls only and my IMEI has been changed to Fake IMEI
1) my phone is out of warranty as some moisture traces have gone into iy and samsung asks for 200$ for every small problem they need to change the board
2) I don't think so I have the EFS backup
Please Oh please someone guide me what to do?
Click to expand...
Click to collapse
There's a thread on that here. You could try that, but I think that without a backup, it's going to be pretty hard to get it back up. First thing I do when I get a new phone is to backup the EFS.
http://forum.xda-developers.com/showthread.php?t=2346136
no help man.
any other help please anyone?
Flashing a different stock rom did not help?
usama492 said:
no help man.
any other help please anyone?
Click to expand...
Click to collapse
Did you actually tried to flash your original Stock ROM with Odin? If not, try other stock ROMs.
There's another ref link here: http://forum.xda-developers.com/showthread.php?t=2393289
I recommend you read through that thoroughly.
Cloxed said:
Did you actually tried to flash your original Stock ROM with Odin? If not, try other stock ROMs.
There's another ref link here: http://forum.xda-developers.com/showthread.php?t=2393289
I recommend you read through that thoroughly.
Click to expand...
Click to collapse
Yes I did flash the stock rom with ODIN which I successively used before
I read it but this is actually getting impossible for me.
After the phone shows generic IMEI.
will backing up the efs help now?
Also I flashed CM 10.
that also didn't give me back my IMEI.
really appreciate your help
and would be really grateful if someone guides me through this catastrophe.
Also I forgot to mention that I update to stock MJ5 4.3
I read that it changes the directory of efs?
Please someone help me!
usama492 said:
Also I forgot to mention that I update to stock MJ5 4.3
I read that it changes the directory of efs?
Please someone help me!
Click to expand...
Click to collapse
Since you updated to mj5 you'll have to use that firmware version in odin.
maybe
Maybe you could wipe Dalvik and cache memory, then do a factory reset through the recovery menu. This will reset everything of your phone, so your IMEI should go back to it's real number(you'll lose all your data so make a backup before doing it).
Have you also tested if it's not the SIM that doesn't work by putting it into another cell-phone?
Eastkap said:
Maybe you could wipe Dalvik and cache memory, then do a factory reset through the recovery menu. This will reset everything of your phone, so your IMEI should go back to it's real number(you'll lose all your data so make a backup before doing it).
Have you also tested if it's not the SIM that doesn't work by putting it into another cell-phone?
Click to expand...
Click to collapse
Sim isn't the problem.
Also wipin dalvik Cache might now fix the problem. But I will try it
thanks
any more suggestion?
A factory reset/wipe Dalvik ain't magically fixing this. If you've gone back to stock (a rom released by your carrier) & your IMEI hasn't returned & you have no backup, you're boned. Service centre (more expensive option), or ask around local mobile repair shops; they might be able to help more cheaply.

[GUIDE] How to restore EFS on I9300

It started when I was trying Swapper 2 from the Play Store. Will, I guess I should read the comment, but I didn't. And yes, it corrupted my EFS and my phone was stuck at the Samsung boot logo. I have tried many method I can search over XDA, but non works. (I'm not sure about this one, which I only find while writing this guide.)
This is by far the easiest method for me, and it doesn't involve Linux, which was a pain since I haven't use Linux in years. I had to VM one for some of the XDA method, which didn't work at end of the day.
1. Flash the firmware with ODIN (original firmware) with original version that you had before. Not the custom ROM, but the original firmware version.
2. Recover with EFS with the EFS image attached in the thread. I used kTool as it faster and easier than any other tool. (Yes, I tried them all...)
3. Download Chimera Tool and buy their cheapest license (or whatever you want) which is €12.90.
That it. Yes you pay, but it the easiest, and most time saving. I spent a week Googling, trying all this various method over ADB, and no, non works. And for Samsung to repair, which they refuse and simply want to change a board and charge me US$ 200 for it, I rather pay €12.90 and do it myself. If you still have problem connection to the network after restoring IMEI, please read post 3.
FAQ
If you need the ODIN, you can find theme over here. Myself I've always used version 3.07. And as always under options you only need the 'Auto Reboot' and 'F. Reset Time' checked. Whether it a modem or stock ROM, click on 'PDA' choose the correct file and than click on start.
Q: Won't flash the EFS image I provide means I'm getting your IMEI?
A: I've wondered this as well. If it were so simple, there wouldn't be so many thread on recovering and so may people cry for help... (I'm included). As my last resort before I buy Chimera Tool's license, I flashed over my bro's S3 EFS, which I didn't want to, as I said it was a last resort. And as it turned out, I didn't get his IMEI. Instead I got his phones' Update S3 product code and serial number. And that was it. IMEI has changed from my previous 'NULL' to the infamous generic 004999010640000.
Q: Why do I still need to do EFS recovery if Chimera Tool can restore it.
A: I've experiment this myself, as I also absolutely did not want my bro's EFS. But unfortunately Chimera can only restore the IMEI and serial number, not rest of the missing files in the EFS folder. If I repartition the EFS folder and using Chimera to restore my IMEI, it would show the correct IMEI but still refuse to connect to the network. And it will have the annoy overly showing my CSC and other bunch of info on my homescreen, as if my EFS is still corrupt.
Q: Does Chimera need some special box?
A: No, a normal USB cable will work. That pretty much means standard ADB command would work, but unfortunately I can't find any info on that. I wish I did, so I don't need to get the Chimera Tool but there was no other way for me. I was also sceptical at first, as I read over many forums and they say it impossible with some sort of service box/tool. I gambled, and luckily it worked out.
Q: Where does the EFS image go for kTool?
A: Sorry, don't remember. Google it, or use the backup option first than overwrite the EFS.IMG file. That what I did.
Q: Now that I got my IMEI back, how do I back it up?
A. Use kTool again? Personally I use TWRP, as I think it the easiest. Since you can do it at a recovery level. No trying of ODIN the OS for corrupt OS before restoring the EFS. In any case, Chimera would still be function for the next couple of month and you can still mess around until than.
Q: Why the need of ODIN the original firmware?
A: I was on a custom TW ROM and Chimera didn't work. Maybe CM and other custom ROM will will work, you can give it a try. But this is how I did it and I know it works.
EFS / Baseband(modem)
It easy to criticize a member and simply tell him use the 'search function', but without realize sometimes the article will help you the most, simply just doesn't come up. Murphy's law. I was on stock 4.1.2 and after restore IMEI and EFS, the phone indicate it register on the network, but I couldn't make calls or connect to the net. This is a vary good article regarding EFS, and sadly it didn't come up easily on my search result. I came across it after I fixed the issue with tones of Googling and was searching for a different topic. But I understand people that desperate need to solve the problem quick (like I was) simply spent hour reading over hundreds of post under that article is just testing a persons sanity. So I'm going to summarised some of the stuff along with my experience. First thing you need to know:
- EFS v2 Basebands (modem) was introduced at Android 4.3 and can read EFS partition v2 and EFS v1
- EFS v1 Basebands (modem) CANNOT read EFS v2, ONLY EFS v1
If you phone is still under warranty and cannot connect to network, the best way is to stay on stock firmware and use TriangleAway to reset the flash counter and sent back to Samsung. With your IMEI number correctly showing, Samsung has absolutely no excuse on not fixing it. If you are no longer warranty, read on.
Q: My IMEI is now showing correctly but I still cannot make calls!
A: This is where the Ariza Patch kicks in. If you are on stock fimware 4.1.2, you need the Ariza Patch to fix the baseband. But after long reading over plenty post, it seems once this patch has been done, it irreversible. So beware. Before you try this patch, you may want to try update to the stock 4.3 firmware and see if it solves the problem before applying the patch.
Q: I'm on stock 4.3, now what?
A: If you still have problem connecting to the network, you need a patched modem (baseband) file. You can find them here. I think this is from the original author who did it. Instead of searching over the forums and files scatter all over the place, I'm pretty sure I dug the link out of XDA while reading through. Someone please tell me if it isn't and provide the the proper link. I'll fix it.
Q: I was on stock 4.1.2 and went to a custom 4.3 ROM, what fix shall I apply?
A: This was my scenario. And I was kind of desperate as well since I just fix my IMEI and was expect the phone to work. I wish I could come across the article on top earlier. I would've tried stock 4.3 first instead of applying the Ariza patch. Any ways, I was on stock 4.1.2 and it didn't work, so I tried a modified 4.3 TW ROM. I wish the OP would mention the EFS thing, which he didn't. I'm not blaming him or anything, but seriously not everyone keep in track of what happening with Android. The OP should mention about the EFS thing or simply post a link such as the topic above and just let people know instead of wasting hours on figuring out why it wasn't working. What I did was, after using the mod 4.3 TW ROM, the IMEI went crazy. So I thought it was corrupt again, so I ODIN back the stock 4.1.2 TW. Than I applied the Ariza patch, wolla, I could call and browse again. So I decide to give the mod 4.3 TW ROM another try. To my surprise, the IMEI still went crazy. So after more Googling only I found out because I wasn't on stock 4.3, my baseband would still 4.1.x. I tried the modem (baseband) patch which for some reason still did not work for me. So I decide to keep the stock 4.1.2 baseband and simply use a custom kernel that could read EFS v1 and v2 - Boeffla Kernel. Remember to download the 4.3 kernel not the 4.1.x! That it, you should now have a working phone.
I just use SA manager .It will backup EFS & MODEM .store it in Ext SD .If EFS corrrrupted just install SA mgr back & restore .
Most important is backup and its very simple process
u need HKCtool to backup efs both img and tar files first of all.
if this is not possible u need a stock rom and odin .after installing stock rom the efs will be repaired.
nainaabd said:
I just use SA manager .It will backup EFS & MODEM .store it in Ext SD .If EFS corrrrupted just install SA mgr back & restore .
Most important is backup and its very simple process
Click to expand...
Click to collapse
Didn't try SA manager as I was in a rush and looking specifically for Samsung phones only. But it definately somehting I want to try if I get a Sony phone. Though I still prefer at a recover level. It just so simple.
keenimo said:
u need HKCtool to backup efs both img and tar files first of all.
if this is not possible u need a stock rom and odin .after installing stock rom the efs will be repaired.
Click to expand...
Click to collapse
TAR file is just a compressed version of IMG file.
im in nairobi kenya, unfortunately i can not buy the chimera tool because we dont have the necessary paying methods. anyone who can lend me theirs please? my S3 has the generic imei, repair would cost 15k here, which is too much. anybody that can help will be highly appreciated.
TNCS said:
It started when I was trying Swapper 2 from the Play Store. Will, I guess I should read the comment, but I didn't. And yes, it corrupted my EFS and my phone was stuck at the Samsung boot logo. I have tried many method I can search over XDA, but non works. (I'm not sure about this one, which I only find while writing this guide.)
This is by far the easiest method for me, and it doesn't involve Linux, which was a pain since I haven't use Linux in years. I had to VM one for some of the XDA method, which didn't work at end of the day.
1. Flash the firmware with ODIN (original firmware) with original version that you had before. Not the custom ROM, but the original firmware version.
2. Recover with EFS with the EFS image attached in the thread. I used kTool as it faster and easier than any other tool. (Yes, I tried them all...)
3. Download Chimera Tool and buy their cheapest license (or whatever you want) which is €12.90.
That it. Yes you pay, but it the easiest, and most time saving. I spent a week Googling, trying all this various method over ADB, and no, non works. And for Samsung to repair, which they refuse and simply want to change a board and charge me US$ 200 for it, I rather pay €12.90 and do it myself. If you still have problem connection to the network after restoring IMEI, please read post 3.
Click to expand...
Click to collapse
you can also downgrade to 4.0.4 and do flash i9300 efs.tar via odin 3.07 but first backup your EFS with helroz's app from here https://market.android.com/details?id=com.boiteoutilssgshelroz&feature=search_result or use any other efs backup maker
But YOU NEVER NEED TO RESTORE EFS after a flash or whenever, just in case you have an issue with it.
if u have 0049xxxx or 00xxxx imei just flash I9300XXUNA7 or any latest android 4.3 and that's it you have your unknown baseband and null imei fixed aka efs corrupt issue.
Warning!!!!
i am not responsible if you get any damage to your device as per my experience i have fixed many i9300's efs and didn't get any problem .
Good luck!
(CHANGE THE ATTACHED FILE'S EXTENSION TO .md5)
Xubair91 said:
you can also downgrade to 4.0.4 and do flash i9300 efs.tar via odin 3.07 but first backup your EFS with helroz's app from here https://market.android.com/details?id=com.boiteoutilssgshelroz&feature=search_result or use any other efs backup maker
But YOU NEVER NEED TO RESTORE EFS after a flash or whenever, just in case you have an issue with it.
if u have 0049xxxx or 00xxxx imei just flash I9300XXUNA7 or any latest android 4.3 and that's it you have your unknown baseband and null imei fixed aka efs corrupt issue.
Warning!!!!
i am not responsible if you get any damage to your device as per my experience i have fixed many i9300's efs and didn't get any problem .
Good luck!
(CHANGE THE ATTACHED FILE'S EXTENSION TO .md5)
Click to expand...
Click to collapse
From what I understand, that still under the condition of prior having an EFS back-up first, right? My guide is for people who doesn't. Like in my situation, where the app screwed up the EFS partition and I had no back-ups.
If you really want in details - Swapper 2 moved the EFS partation on to my ext SD card and format the EFS partition. I was in a flat panic with the soft-brick froze at the Samsung boot logo, assume the SWAP was on the ext SD and screwed it up than format the ext SD. Well, boom, without expectation the app would do something like that and had no prior experience with EFS - no back-ups of EFS at all. And no, full nandroid back-up from CWM does not contain EFS, I've tried that. This isn't some normal scenario of incompatibility between kernel/ROM and EFS/Modem. This is recovery guild for corruption of EFS with NO back-ups.
trying ....
mezo_mmm said:
trying ....
Click to expand...
Click to collapse
And how did it go? The suspense it killing me .

[Q&A] [IMEI][efs] SAMSUNG NOTE 3 EFS BACKUP/RESTORE

Q&A for [IMEI][efs] SAMSUNG NOTE 3 EFS BACKUP/RESTORE
Some developers prefer that questions remain separate from their main development thread to help keep things organized. Placing your question within this thread will increase its chances of being answered by a member of the community or by the developer. Thanks for understanding and for helping to keep XDA neat and tidy! :smile:
cassinni said:
Doesnt work for me and i am rooted on 4.3
"The system cannot find the path specified...."
USB Debugging enabled aswell..
any help?
thanks
Click to expand...
Click to collapse
Same problem here.
Fixing IMEI After Downgrading to 4.3 from 4.4.2
I need to know how to install my original or a working IMEI onto my AT&T Note 3 SM-N900A any info is helpful thanks hopefully someone knows the answer and can reply fast.
Same here.. is this method is works with sm-n900a at&t?????? after updating to NCUC2 4.4.2 my efs folder get damaged.. now unknown baseband and also IMEI is null/null
Please help me out
explanations
call out of the explanations and some easier. Thank you.
I've always found the easiest way to backup/restore EFS is via TWRP. Just select backup then just tick EFS. That particular backup will then contain only your EFS partition which you can restore at any point, even if your phone doesn't boot. As long as you can get into your recovery you're good to go.
Sent from my SM-N9005 using Tapatalk
SM-N900
Hi guys, i have SM-N900 and i have backup of EFS.img and efs.tar. How can i restore it? TAR file can't flashed by odin. Can't extract EFS.img. now my phone is Not registered on network
Hi guys need help
Can u send me efs img file and all efs files i m using sm-n9005, i dont have efs backup and now imei null and baseband unknown
LOST EFS Files... PLEASE HELP
Hi
i have a galaxy note 3 (sm-n900). Suddenly, Last week it just lost the coverage of the network and it is not able to connect to any network (mobile network, wifi, Bluetooth) anymore.
I searched over the Internet and found that such problem is related to EFS files.
My dedevice is not rooted so i have not flashed any rom.
How can i fix it???
efs
hi ive corrupted my efs and didnt back it up befroe root.
however unusual to see my sm-n900 picks up its original imei for some time and then it shows null0null or imei with 0049 .
efs wont repair after restore to stock firmware . could you developers please build me an efs if I gave you my IMEI????
efs is corrupted wont repair
is there anyone who could help me building an efs for sm-n900
i got my efs corrupted .dont have the backup , and the correct IMEI shows up for an hour or two and then goes away showing null/null or 0049
i got an advice that developers on xda would help me out
pplease tell me if anyone could help me out
imei Null
Hello everyone, can anyone help ; i have a Note 3 sm-N9005 and i messed up and didn't back up my efs files and now i have IMEI null and baseband unknown how cani fix that !! please help!!
Hello,
the backup system does not work!
finally falsh via odin pass, but reboot as the freeze remains on the samsung logo.
instead of bin \ adb shell su -c "-s -l make_ext4fs /sdcard/temp2/system.img.ext4 2304M / system"
* I've used it "dd"
xbillou360 said:
Hello,
the backup system does not work!
finally falsh via odin pass, but reboot as the freeze remains on the samsung logo.
instead of bin \ adb shell su -c "-s -l make_ext4fs /sdcard/temp2/system.img.ext4 2304M / system"
* I've used it "dd"
Click to expand...
Click to collapse
Did you fix it? how?
Can you be more specific
no imei, no baseband, no working efs.img
hey guys,
im new here and my english is no the best, but i try to explain my problem.
i tried to flash the cyanogenmod 12 on my n-9005 and first i thought it works fine. but then i saw there was no emei and baseband anymore. so flashed 4.4.2 again and tried some things and, i dont know exactly why, everything was fine. so i made a efs backup with the terminal emulator (dd /.......) and got a file named efs.img (14mb). then i tried to flash cyanogenmod 12 one more time and again there was imei 0/0 and no baseband. so i made the recovery with the efs.img , but it didnt work. again i flashed it back to 4.4.2, but still the same problem. now its the third day without sleeping and i dont know what to do. can someone help me?
viktor
knox trip?
Hi guys!
Sorry if the question has already been asked but couldn't find the answer, so please bear with me ... My question is: does the backup procedure (and later restore) as described in the thread trip knox and voids your warranty?
Thanks in advance!
Hello everyone. I hope you could help me with flashing Lollipop on my Galaxy Note 3. I haven't received it OTA so I am planning to download the official rom and flash it using Odin. I have used Odin in the past to flash roms and from my own experience I know that every time I flashed - the phone also got factory reset and I lost all the data and the apps already installed. I would like to flash without factory resetting my phone. also, I don't want to root my phone. Please help. Thank you.
Sent from my SM-N9005 using Tapatalk
monitorix said:
Hello everyone. I hope you could help me with flashing Lollipop on my Galaxy Note 3. I haven't received it OTA so I am planning to download the official rom and flash it using Odin. I have used Odin in the past to flash roms and from my own experience I know that every time I flashed - the phone also got factory reset and I lost all the data and the apps already installed. I would like to flash without factory resetting my phone. also, I don't want to root my phone. Please help. Thank you.
Sent from my SM-N9005 using Tapatalk
Click to expand...
Click to collapse
Odin WILL overwrite the phone. Without Root you can't do a nandroid (full phone backup) and about your only option is to get something like ES File Explorer and try to copy out all your media files, docs etc.
All the best ways to save stuff require root access.
You could also try SMS Backup & Restore and Call Logs Backup & Restore to save those out to your extSD. Also you can export your Contacts to extSD and import them back once the flashing is done.
---------- Post added at 03:14 PM ---------- Previous post was at 03:08 PM ----------
viktorno5 said:
hey guys,
im new here and my english is no the best, but i try to explain my problem.
i tried to flash the cyanogenmod 12 on my n-9005 and first i thought it works fine. but then i saw there was no emei and baseband anymore. so flashed 4.4.2 again and tried some things and, i dont know exactly why, everything was fine. so i made a efs backup with the terminal emulator (dd /.......) and got a file named efs.img (14mb). then i tried to flash cyanogenmod 12 one more time and again there was imei 0/0 and no baseband. so i made the recovery with the efs.img , but it didnt work. again i flashed it back to 4.4.2, but still the same problem. now its the third day without sleeping and i dont know what to do. can someone help me?
viktor
Click to expand...
Click to collapse
There are things you can do if you search for IMEI lost or similar words. But simplest is probably to DL the Stock version for your phone & use Odin to flash it. That will lose all your data and apps etc on the intSD so you might want to look for other ways first.
I'm guess here but I think maybe you have a problem trying to downgrade your modem/bootloader. CM12 is (if I remember right) v5.0.x of Android, and since Kitkat there have been issues going BACK to previous versions. I think maybe you upgraded your BL to the LP version then it failed when you tried to go back to KK version.
You do not say which 4.4.2 you flashed but you could look for a v5 of that ROM and try that first.
sabirthe1 said:
is there anyone who could help me building an efs for sm-n900
i got my efs corrupted .dont have the backup , and the correct IMEI shows up for an hour or two and then goes away showing null/null or 0049
i got an advice that developers on xda would help me out
pplease tell me if anyone could help me out
Click to expand...
Click to collapse
have you solved it yet? I met this problem but dont know how to handle it.
can you give me a hint?

[ Q ] efs folder fix

Hello. I was wondering if anyone knows how or could point me in the direction on how to fix my efs folder. It seems like it is only half corrupted. I can still dial #*06# and can still get my imei number but every reboot put me in safe mode and some of my apps don't work. I have root explore and I go into efs folder and nothing is there. It almost seems like I have a semi root. I am currently rooted and on a custom ROM. If anyone could help that would be great. Thanks and have a great holiday.
Taiweanthony said:
Hello. I was wondering if anyone knows how or could point me in the direction on how to fix my efs folder. It seems like it is only half corrupted. I can still dial #*06# and can still get my imei number but every reboot put me in safe mode and some of my apps don't work. I have root explore and I go into efs folder and nothing is there. It almost seems like I have a semi root. I am currently rooted and on a custom ROM. If anyone could help that would be great. Thanks and have a great holiday.
Click to expand...
Click to collapse
Reflashing the stock firmware for your CSC may help.
Thanks for your help. I will try it out.
efs
I flashed the stock firmware to csc and I still have the same problem. Anything else I could do?
EFS restore
Heeeeelp
I have no net, no wi-fi, no mobilnet. I wanted to restore EFS image file but it says I have to buy mannyvinny efs backup tool pro version. But without net it failed
I need help, how to restore img files in other way
Thanks for any help:crying:
Taiweanthony said:
I flashed the stock firmware to csc and I still have the same problem. Anything else I could do?
Click to expand...
Click to collapse
Try this post.

No GPS signal Note 4 SM-N910G

Hi there,
My note 4 gps is not working at all, tried different apps but always no fix,
Can anybody help me find if it's hardware or software issue
How can i check if it's hardware?
iffiscb said:
Hi there,
My note 4 gps is not working at all, tried different apps but always no fix,
Can anybody help me find if it's hardware or software issue
How can i check if it's hardware?
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Click to collapse
Mate, I have the same problem (australian SM-N910G) - not sure if it's possibly related to an EFS Folder problem?
I am a compulsive "flasher" and have been switching between Dr Ketan's and Nameless lately (both COH4).
I think I may have missed an EFS backup/restore in the past and corrupted something, I was using the mannyvinny note4 EFS backup tool, which now refuses to work for me at all - it recognises my phone as SM-N910G but will not restore my EFS backups.
I am going to flash stock COH4 ROM and BL/Modem to see if it fixes it, I will let you know.
Please let me know if you find a fix.
Cheers:good:
notese7en said:
Mate, I have the same problem (australian SM-N910G) - not sure if it's possibly related to an EFS Folder problem?
I am a compulsive "flasher" and have been switching between Dr Ketan's and Nameless lately (both COH4).
I think I may have missed an EFS backup/restore in the past and corrupted something, I was using the mannyvinny note4 EFS backup tool, which now refuses to work for me at all - it recognises my phone as SM-N910G but will not restore my EFS backups.
I am going to flash stock COH4 ROM and BL/Modem to see if it fixes it, I will let you know.
Please let me know if you find a fix.
Cheers:good:
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Click to collapse
Sure,
I guess there must be something wrong with efs folder, I've never backed up or restored it, but gps isn't working, i bought used my N910g,
Gps was never working, now have dr ketan's L12 running on my phone
Please do let me know if you find a solution, and is there anyway to restore the stock efs folder, or simply gps files or folders which i can copy paste in my efs folder?
iffiscb said:
Sure,
I guess there must be something wrong with efs folder, I've never backed up or restored it, but gps isn't working, i bought used my N910g,
Gps was never working, now have dr ketan's L12 running on my phone
Please do let me know if you find a solution, and is there anyway to restore the stock efs folder, or simply gps files or folders which i can copy paste in my efs folder?
Click to expand...
Click to collapse
Think I may be able to help,
I just flashed with odin
n910g-cwm-recovery-6.0.5.1(1101)new
then odin
N910GDTU1COH4_Bootloader_Modem.tar.zip
then with recovery flashed
[Rom][5.1.1][N910G]Nameless COH4 *Stock *Deodexed *PreRooted
now my gps is ok
also try "faster gps" from playstore to edit your NTP server.
hope this helps mate :fingers-crossed:
notese7en said:
Think I may be able to help,
I just flashed with odin
n910g-cwm-recovery-6.0.5.1(1101)new
then odin
N910GDTU1COH4_Bootloader_Modem.tar.zip
then with recovery flashed
[Rom][5.1.1][N910G]Nameless COH4 *Stock *Deodexed *PreRooted
now my gps is ok
also try "faster gps" from playstore to edit your NTP server.
hope this helps mate :fingers-crossed:
Click to expand...
Click to collapse
All this at the cost of this rom? I really like this rom by dr ketan.
If i simply flash bootloader modem will it work?
Because while flashing this rom i didn't flash bootloader or modem, everything is fine except the gps

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