I am still a bit of a noob, but I figured someone else could find this useful... The following instructions are a mix of directions from Sprint plus a bit of my current knowledge. I have confirmed this to work on the Hero and EVO 4G.
!!BE AWARE!! From what Sprint indicated this will take you back to an "out of the box" factory condition. It will also attempt to install any OTA updates upon booting. If this is an issue make sure to cancel them.
Note: I did notice the Radio version stayed on the most recent version, not sure if this is because it automatically updated it or if it just didn't revert... should be ok either way.
TO UNROOT (RESTORE) STOCK ROM
From a dialpad press "##786#" - This will take you to EPST mode.
Then press your "Menu" key on the phone and select "Reset".
It will then ask for the password, this is your 6 digit MSL. - you can usually obtain this from Sprint Tech Support.
After you press Ok it should reboot and begin the reset (restore).
TO RESTORE FROM A CUSTOM ROM - I have only loaded a custom ROM on my EVO, so the following only applies for it. I'm sure you can translate accordingly to fit for the Hero and possibly others.
Give the step above a try first and if it works for you go for it, otherwise please do the following.
Restore to the stock rooted ROM (PC36IMG.zip or whichever applies for you) before performing the steps above. Either by restoring from a previous NAND backup or by repeating the steps in "[TUTORIAL] How To Root The HTC EVO ~ Part-1 \0/" (Too new to post link sorry)
After restore go ahead and do a wipe to be safe.
Then complete the steps above to reset stock ROM.
Hope this helps and happy hacking!!!
Noob here also. I bought my phone from a friend and I want to restore it the original settings then install the new rom myself. The phone came with the Damage Control rom...do I uninstall it through the 1st or 2nd option you listed above? Thanks
handsdown said:
Noob here also. I bought my phone from a friend and I want to restore it the original settings then install the new rom myself. The phone came with the Damage Control rom...do I uninstall it through the 1st or 2nd option you listed above? Thanks
Click to expand...
Click to collapse
You should be good with option 1
When I dial ##768# and press menu nothing happens. Can you help please?
its ##786# not 768
Ok I made a mistake I tried to install the OTA update that fixes the fps but when I held the power button and the volume button I made a mistake and reseted my whole phone and now it won't let me update my phone
Sent from my PC36100 using XDA App
what am i supposed to do after i put ##786#? call it?
A while back, I lost my IMEI flashing CM10. I restored that back, and got my phone working again, but every time I leave the local area code, my phone says that I am roaming. Being that I recently moved out of state, this means that my phone now says that I am roaming all the time. While this doesn't greatly affect anything, I would like to fix it. The problem seems to stem from my ERI (ERI version: none). Is there any way to repair this?
I too have this problem now. I recently flashed a few cm10 nightlys one after another using the built in updater and I lost my imei. After using the nv-item_reader_writer program and the nv generator I was able to restore my imei but am still without an erI
This is what I did to get my eri back after losing my imei and restoring it. There may be some steps you don't need to do but it worked for me.
1) I flashed a stock rooted TW rom.
2) Next I flashed the VRLF2 modem found here (Click spoiler to see them) : http://rootzwiki.com/topic/34053-firmware-vrbmf1-modemrpmtzsbl-verizon-sgs3-sch-i535/
3) Next, I got my eri back using the forbidden software in this thread(You're going to have to search the thread some but you're on the right page): http://rootzwiki.com/topic/32397-tu...ants/page__pid__1218913__st__220#entry1218913
4) Follow directions in OP of same thread.
5) Once you have you ERI back to 5 and your phone shows verizon network I highly recommend going to Synergy rom thread and looking for the HW keys back up zip. It can be found if you look through the attachments in that thread. Make a flashable copy of your keys with that zip and place on your sd card and in multiple other places for safe keeping.
:victory::victory::victory::victory:
djwalter said:
This is what I did to get my eri back after losing my imei and restoring it. There may be some steps you don't need to do but it worked for me.
1) I flashed a stock rooted TW rom.
2) Next I flashed the VRLF2 modem found here (Click spoiler to see them) : http://rootzwiki.com/topic/34053-firmware-vrbmf1-modemrpmtzsbl-verizon-sgs3-sch-i535/
3) Next, I got my eri back using the forbidden software in this thread(You're going to have to search the thread some but you're on the right page): http://rootzwiki.com/topic/32397-tu...ants/page__pid__1218913__st__220#entry1218913
4) Follow directions in OP of same thread.
5) Once you have you ERI back to 5 and your phone shows verizon network I highly recommend going to Synergy rom thread and looking for the HW keys back up zip. It can be found if you look through the attachments in that thread. Make a flashable copy of your keys with that zip and place on your sd card and in multiple other places for safe keeping.
:victory::victory::victory::victory:
Click to expand...
Click to collapse
Thank you for this. I do not need iut currently and I do have a proper NVBackup but you never know . I have it on my Box account just in case and besides I could always help someone that didnt do a proper NVbackup. Quick question. What happens if you flash a 16 GB PIT on a 32 GB Model? Would it brick you or just give you a 16 GB S3? I have a 16 GB model but just curious. I need to read up on this stuff.
Sandman-007 said:
Thank you for this. I do not need iut currently and I do have a proper NVBackup but you never know . I have it on my Box account just in case and besides I could always help someone that didnt do a proper NVbackup. Quick question. What happens if you flash a 16 GB PIT on a 32 GB Model? Would it brick you or just give you a 16 GB S3? I have a 16 GB model but just curious. I need to read up on this stuff.
Click to expand...
Click to collapse
Since I had restored my imei with qpst all I did was use the tool to restore my eri. From what I've read it won't work unless you downgrade your modem. I didn't have to mess with the PIT files listed. I don't think it would be good to mess with those without talking to someone who knows more than I do. JMO, I don't think it would end well mixing those up. I also forgot a step, once you're back up with your eri you can upgrade your modem back to whatever is best for you. A lessoned learned the hard way for me. I haven't had to worry about losing stuff like this since the original EVO 4G.
I am at a loss.... I rooted my phone and it was awesome! So I followed the instructions by lumin on how to flash a custom kernel and rom....didn't work...so with the help of one of the members here, I reverted back to kj6 stock gb with heimdally one-click. rooted the phone with super-one-click....and the phone will not connect to tmobile's network. I restored the original efs backup, which then gave me the correct imei, but I have no signal...wifi calling won't work now, and now I cannot do anything...but receive texts... I tried the method given to me by another member through pm, and it is as follows:
From what I've read, this will delete your IMEI information and replace it with generic info, which will allow you to use the network, but might bar you from high data speeds.
In the dialer, type this exactly: *#*#197328640#*#*
This will put you in factory debug mode. Perform the following steps exactly:
Click 6) Common
Click 6) NV Rebuild
Click 1) NV Rebuild
If there are any more options just continue through them until the phone completes this process (I can't go any further on my phone for fear of changing my currently good IMEI. Then reboot the phone.
I did all this, and it did nothing... I don't know what to do! I've never been more desperate to have a phone because I am away from home and a poor college student...so I'm just really needing some help. I'm at the end of my rope. Please help!:crying:
I really need help! Will SOMEONE help me please?!!!!
Use this to return to Root GB
https://www.dropbox.com/s/hupsicn666cq18h/1-ClickSGS4GOdin.zip
Hi, guys I'm new to android phones...but I'd love to know more about them and about these custom roms...so the point is that I read this thread http://forum.xda-developers.com/showthread.php?t=2519448 and I don't know how to start ... I have a LG L5 E610 and the default ROM is a little slow...I need to mention that my phone isn't rooted...is brand new...so pls can you help me...I searched the Internet but I founded so many things and I'm kind of mix up...
Go to this subforum for your phone and read up on what's needed.
http://forum.xda-developers.com/optimus-l3-l5-l7
The procedure varies slightly from phone to phone but you first need to unlock your bootloader (the first unlock will wipe any data you have stored on the phone, make sure you backup first)
And most importantly don't be afraid to ask as many questions as you need, we were all noobs once
Also, once you got a custom recovery installed, make sure you do a full backup before experimenting, that way you always can get back to a working device no matter what happens.
Good luck and enjoy.
Nexus 7 LTE
SlimKat KOT49H
Bricked Kernel
Thank u...
Raverbunny said:
Go to this subforum for your phone and read up on what's needed.
http://forum.xda-developers.com/optimus-l3-l5-l7
The procedure varies slightly from phone to phone but you first need to unlock your bootloader (the first unlock will wipe any data you have stored on the phone, make sure you backup first)
And most importantly don't be afraid to ask as many questions as you need, we were all noobs once
Also, once you got a custom recovery installed, make sure you do a full backup before experimenting, that way you always can get back to a working device no matter what happens.
Good luck and enjoy.
Nexus 7 LTE
SlimKat KOT49H
Bricked Kernel
Click to expand...
Click to collapse
Ok...first I rooted my phone with this http://androidteen.com/lg-optimus-l5-e610612-android-4-1-2-how-to-root-and-install-custom-recovery/ and then I followed this guide http://forum.xda-developers.com/showthread.php?t=2519448
first I wiped data ..and after that I installed the ROM and after that Gapps...and now the phone is working but when I am on 3G, apps like youtube, exhange mail stop working..."unfortunately YouTube has stopped working"...what to do...is this problem related to Gapps or my Internet Acces VODAFONE RO or this UNOFFICIAL ROM from cm...and I wanna ask you another question if you don't mind HOW CAN I UNINSTALL GAPPS...?..maybe is from the .zip file ...you know better...sorry for my english
Edited in 2022 to make it look a bit better!
*WARNING* *TAKE A NANDROID BACKUP OF EFS AND BASEBAND BEFORE STARTING*
Hello people, first I want to say that this is my first guide so it doesn't really look professional but I am doing my best to be clear as possible.
In this guide I will be showing you how to repair your IMEI for free/without Z3X box
So lets get into it.
Its better to start fresh in stock rom
So flash the stock rom first
Now we are really starting,
Step 1) flash TWRP and flash Magisk (if you weren't rooted yet)
Step 2) now search for a custom rom for your phone download it before doing something or just download on pc and move it later
Step 3) now go to mount and select efs or else your efs will be empty at the next step
Step 4) now go to file manager and goto /EFS
Just delete everything in it OR YOU CAN LEAVE Privo data and factory app, you have a backup anyways. *WARNING: DO NOT DELETE THE EFS PARTITION IT SELF, IT WILL MAKE YOUR PHONE NOT BOOTING ANYMORE ONLY DELETE THE FILES INSIDE OF IT SO DELETE ALL FILES*
Step 5) now flash the custom rom for s7 edge i would recommend kingrom, do full wipe at the aroma. You may try to skip this step. There have been comments saying that this guide also works without this step.
Step 6) now reboot your phone, first reboot may take 5-10/15 minutes please be patient and make sure you put your phone in the charger if your battery is low now when your phone is in the welcome screen look or your signal is returned if not just setup your phone sometimes it may take a while for the signal to appear. If your signal is returned then go to phone app and dial *#06# and look or the IMEI matches the IMEI of the box of your phone (make sure you have the original box if you don't have this then open the back of your phone (if you can), there is a sticker label with your s/n and IMEI. If you cannot open the back of your phone, then you will have to trust that the IMEI is right. If everything is functional then you're done with this guide. The next steps are more ''checking'' if everything is alright.
Step 7) If your s/n is ok skip to step 8 if its not right then download a root explorer and go to /efs/factoryapp and edit the serial no file with a text editor and enter your s/n there now save it and IMEI and s/n should be alright
Step 8) Now, for IF the IMEI is correct and everything is fully functional, then delete the earlier made backup of EFS and baseband and make a new one with the working partition, then save it somewhere safe on an external drive, the cloud or on an USB, or just a pc that you will never reset or wipe its data.
Congratulations on getting past step 8. I hope this guide has helped you and that it worked for you. If not then I'm sorry for not being able to assist you. This guide is just me sharing what I did to solve this issue. Good luck on solving your problem if this guide did not work.
If the IMEI is not correct or this guide doesn't work then I can't help you any further except for if you have any questions, however I found a guide for the Samsung galaxy s7/Edge (if you have s8 then click same link because the thread has a link to s8) by Cubz (thanks to Cubz for his guide)
Link: https://www.google.com/amp/s/forum....ow-to-fix-check-drk-imei-issues-t3379516/amp/
S7/E/8 only and some other models as long its an s7 (edge) or s8/+
******* Some tips when you follow the guide*******
1) When you flash combination firmware and it gives you errors then dial *#1234# and look at the cp it should have UX in it (X could be 1,2 or 3 download the correct firmware with the correct bootloader version. You can upgrade from u1 to u2 and u2 to u3 but not downgrade from 3 to 2 or 2 to 1
2) If it didn't work then flash back to stock and fully delete everything in efs folder then retry (this is actually just guide B) its better to follow the guide above
3) If you got bootloader exception error then keep tapping the home button fast until it reboots then just manually reboot and enter download mode
The first method was tested and worked on SAMSUNG GALAXY S7 EDGE SM-935F it may work on other Samsung devices and maybe other android devices but I cannot guarantee that it works on your device
** I take no responsibility for any damaged device, make sure you take a back up so you can go back to the state before you started following this guide!**
If the device gets bricked then always flash back to stock, if you cant enter download mode then just wait until your battery drains and then when you put it in the charger it may start up automatically so enter download mode fast or if you got bootloader exception error then keep tapping the home button fast until it reboots then just manually reboot and enter download mode
----------------------------------------------------------------------------------------------------------------------------------------------------------------
Happy flashing and please confirm in the comments below if it worked for your device or not
Guys please comment or it works on your device or not!
It works for me. But I have to manually change CSC on my phone after original rom flash to fix Network. TGP rom have that option.
I followed your guide and my model name changed from G930F to G930FD and my IMEI is just bunch of zeroes wtv
SOLVED AT LAST - MISSING IMEI and EFS DAMAGED SOLUTION
Hi Guys,
First off, please take GOOD note - I am NOT a techy, just an old boring flashaholic who works in an office and likes pyjamas more than partying. This is my account of me fecking up my phone and finally reaching a solution after three days and most of two nights to a missing IMEI, messed up EFS and non-working phone - hoping that it might help anyone as desperate as I was. You do what you do with your phone and that's your business and I'm not responsible if you mess it up, but my hope is that you have have a brain (that's all I have) and you get some helpful piece of info here as I did from a whole ton of posts I read that finally led me to this.
Next - I am not sure what landed me in this mess. I've seen Superman Rom mentioned a couple of times..I didn't use that but I did use Batman Rom which is by the same Dev. It was great to use, too, so I'm not faulting the Dev by any means. What did happen, though, is that when I flashed other ROMS, maybe 3 or 4 of them following, the Batman splash screen was always there before the new ROM's boot sequence, so there were clearly some residual things of it in there ...so perhaps the same coding is in there and could have had something to do with it, I don't know. The breaking point came when I flashed Sac23 Rom hoping to get Pie on my phone. It was cool but I decided to revert to Resurrection Remix - always my favourite overall - and all of a sudden I get errors.
What should have been a routine "Restore" of my backed up RR ROM via TWRP gave "Error mounting EFS". Reboot, wipe, retry. No joy, same again. A couple of tries to restore the EFS from the backup in TWRP didn't work either.
Next go to is flash "original firmware" (more on this wording later). I had that on my PC (not a phone backup, just the firmware so it's clean copy with no data).
Get Odin out, download mode, correct files in correct boxes, all that standard stuff you can find guides on most places - no joy.
Error showing was "Fail at pm.bin" or something like that. Install aborted.
Try again. This time "Fail at cm.bin" Install aborted. Reboot from recovery also fails. Oh sh1t.
Several more attempts made. I have five different Odin vers. I have seven different firmware vers. I have two USB ports and about 8 Samsung cables. Not a single combination I tried worked.
The XDA heroes will know what to do, I thought. I read and read. And read. And CubZ (who is a hero even if he IS from Lancashire ), says MAKE SURE YOUR PHONE IS RUNNING ORIGINAL SOFTWARE. Well...I kinda did that mostly already...but maybe I need to go RIGHT back to the rubbishy 6.0.1 version that came actually ON my phone when I got it....almost 2 years ago? Who remembers that stuff?? I'm about 18 ROMS down the line now. I was desperate. I'm telling you...I even got out my bank statements to trace when my first payment to my current provider was...I read about firmware numbers and country codes, and I chose one from Sammobile with a build date, country code, unbranded code (which my phone always was) and correct phone model (of course!) as I needed. And it WAS .."the ORIGINAL" firmware.
This time I swear Odin failed me a second BEFORE I pressed the start button! No joy.
Have a flask of coffee and a few valium sandwiches and off I go back to XDA again. I read a loooong series of "Missing IMEI" stuff and there's CubZ again with an IMEI/EFS fix guide guide...brilliant! And it WAS brilliant, and clearly he helped tons of people (kudos, man). But I had messed up MY phone in the time-honoured "right royal" way - worse than his guide could help me. My IMEI was Unknown, my EFS was empty, My SIM wasn't being recognised, no network info or signal...nothing. But genius that he is, he CubZ DID post a Combination file that gave me a base to keep trying on when firmware after firmware had failed almost immediately with errors either of pm.bin/abort or cm.bin/abort.
I almost wore the print out on CubZ guide, I read it so much and tried so many times. Then...I see people saying things about U1, U2 and U3 firmwares. Turns out you shouldn't mix the two. I got that snippet from CubZ too. More research and the little coffee-fuelled connections in my brain are like.....ok....
My ORIGINAL firmware has in its name "U1" and there are similar ones with "U2". Might that be it? My phone has been screaming "DEVICE 2 FIRMWARE 1" (or something like that) at every aborted 'original firmware' installation via Odin and download mode that I've tried, including the EXACT firmware that was on my phone the day it was unwrapped and I danced happily round the room with it.
So if DEVICE 2....FIRMWARE should be 2 maybe? Back to Sammobile. There are firmwares with the same model number, country code, branding info as mine..but with a "U2" where mine said "U1". But...they were Oreo and Nougat where mine was "originally" Marshmallow.
It's now day three in the Big Mother House. My valium and coffee and running out and my communication with the outside world has ceased. I've had about five hours sleep, my food is running low and I cannot call for takeaway cos I ficked my phone up good and proper. I even....get this....start looking up PAID services to fix this. I KNOW, right!!??
I pick up a Nougat firmware from Sammobile...careful to match model, country, branding AND U2 - wondering if I can match it up with CubZ's Combi file as a base to appease Odin......and then maybe revert to my 'original' stock from that to start another attempt at the IMEI/EFS thing.
It loaded. Odin was pleased with my sacrifice. And lo and behold, it had restored the whole lot WITHOUT me having to go any further with stock ROM reversions. It frickin' worked. I got my signal back. My SIM card was detected. My phone number was showing. My IMEI was showing. My E-Frickin-S was mended. I feel like Judd Nelson at the end of Breakfast Club.
So here's the semantic bit that I hadn't known and that is unclear in many many posts. My phone is now working 100% on stock firmware....but is is NOT REALLY the ORIGINAL software - it's the MODEL......COUNTRY......BRANDING.....LANGUAGE - specific firmware but it is Nougat where my original was Marshmallow, and it is a U2 firmware where my original FW was U1. THAT was the killer difference, it seems. Thanks to all of you who posted anything - many many of you - who helped me get this. It's a compatibility issue detail I've never seen or had issues with before.
I now have G930FXXS2DRDI_G930FXEU2DRB5_XEU
Where G930F is the model number, XEU is the country code for UK and Ireland (even though UK is a nation and not a country - just sayin' ) and the U2 sits there hiding in the middle of the second section of the name.
Which gives unzipped files as follows: NOTE - THESE ARE NOT LINKS.
AP_G930FXXS2DRDI_CL12365438_QB17789072_REV00_user_low_ship_meta.tar.md5
BL_G930FXXS2DRDI_CL12365438_QB17789072_REV00_user_low_ship.tar.md5
CP_G930FXXU2DRB6_CL648265_QB8952207_SIGNED.tar.md5
CSC_XEU_G930FXEU2DRB5_CL13061583_QB16917099_REV00_user_low_ship.tar.md5
HOME_CSC_XEU_G930FXEU2DRB5_CL13061583_QB16917099_REV00_user_low_ship.tar.md5
It's Nougat, but that's okay for now; I got my IMEI, EFS, SIM, BIN, probably ENT, RAC, SUV and BMX too, everything
And now, with my working phone, I am gonna phone the local Chinese Takeaway for food, answer all my emails that popped and binged and tinkled at me when it became resurrected, and leave CubZ with huge thanks and all of you guys with the hope that this helps somebody out there.
And maybe look at backing this sucker up and reverting to my Oreo RR ROM I love so much..... I HATE Touchwiz!!!!
Good luck!
:good::good::good:
I was also on similar problem and i lost my efc
Baseband unkwn
Imel null
No signal
I was on s9 port rom by teamexykings and when i update i did dirty flash and my phobe stuck on samsung logo somehow it was boot but it was keeps rebooting than i boot my phone in twrp
When i was trying to wipe system data and dalvic cache
In wipe menu i was shocked to see that it showed internal storage 0mb
I had this problem 1st time
And i have to format my phone to boot properly
U know my big mistake is that i haven't taken a back up of my all apps and my data
After 10-15 min latter it boots
But 2nd shocked was that
I lost my signal my imei my baseband vesrsion unknown
I was so scared to lost my imei
Than i searchon google and i have read lot of articals about restoring efc partition
And than i found similar thread like u have explained
It's really work for me
And this article will help most of device of samsung
And xda user
What i have done
In twrp i mount efc partition
Than in advance menu
File manager
Efc
And i have deleted all of file in efc
(Remember not efc partition it self)
Except privo
Privo data and factory app
Than reboot
After boot my phone i got signal back
I was so happy that it was very easy to do
Your guide will help for many device
shabbir143 said:
I was also on similar problem and i lost my efc
Baseband unkwn
Imel null
No signal
I was on s9 port rom by teamexykings and when i update i did dirty flash and my phobe stuck on samsung logo somehow it was boot but it was keeps rebooting than i boot my phone in twrp
When i was trying to wipe system data and dalvic cache
In wipe menu i was shocked to see that it showed internal storage 0mb
I had this problem 1st time
And i have to format my phone to boot properly
U know my big mistake is that i haven't taken a back up of my all apps and my data
After 10-15 min latter it boots
But 2nd shocked was that
I lost my signal my imei my baseband vesrsion unknown
I was so scared to lost my imei
Than i searchon google and i have read lot of articals about restoring efc partition
And than i found similar thread like u have explained
It's really work for me
And this article will help most of device of samsung
And xda user
What i have done
In twrp i mount efc partition
Than in advance menu
File manager
Efc
And i have deleted all of file in efc
(Remember not efc partition it self)
Except privo
Privo data and factory app
Than reboot
After boot my phone i got signal back
I was so happy that it was very easy to do
Your guide will help for many device
Click to expand...
Click to collapse
You deleted all files and folders from EFS Mounted partition? how is it possible working?
You are awesome man!
I just deleted the files in EFS, restarted without installing custom rom and my IMEI was fixed.
I'm definitely donating. How to donate to you?
Thanks for your great work!
cisekpro23 said:
You deleted all files and folders from EFS Mounted partition? how is it possible working?
Click to expand...
Click to collapse
I think samsung phones are capable of regnerating their efs. But its not working for me on samsung galaxy s6. Guess I am screwed.
Hey everyone, I'm sorry for not responding to anyone in this thread. I've been inactive for a long time. I want to thank everyone for trusting the guide and I hope it has worked for you if you tried following the steps. If you have any questions feel free to ask me.
Also I have edited my guide to improve the reading experience because I see my English was absolutely horrible at the time when I wrote the guide.
oh no. i accidentally deleted the efs partition and it can't mount anymore what im gonna do now. im fvcked up please somebody help me
vigilante said:
Edited in 2022 to make it look a bit better!
Hello people, first I want to say that this is my first guide so it doesn't really look professional but I am doing my best to be clear as possible.
In this guide I will be showing you how to repair your IMEI for free/without Z3X box
So lets get into it.
Its better to start fresh in stock rom
So flash the stock rom first
Now we are really starting,
*WARNING* *TAKE A NANDROID BACKUP OF EFS AND BASEBAND BEFORE STARTING*
Step 1) flash TWRP and flash Magisk (if you weren't rooted yet)
Step 2) now search for a custom rom for your phone download it before doing something or just download on pc and move it later
Step 3) now go to mount and select efs or else your efs will be empty at the next step
Step 4) now go to file manager and goto /EFS
Just delete everything in it, you have a backup anyway *WARNING: DO NOT DELETE THE EFS PARTITION IT SELF, IT WILL MAKE YOUR PHONE NOT BOOTING ANYMORE ONLY DELETE THE FILES INSIDE OF IT SO DELETE ALL FILES*
Step 5) now flash the custom rom for s7 edge i would recommend kingrom, do full wipe at the aroma
Step 6) now reboot your phone, first reboot may take 5-10/15 minutes please be patient and make sure you put your phone in the charger if your battery is low now when your phone is in the welcome screen look or your signal is returned if not just setup your phone sometimes it may take a while if your signal is returned then go to dialer and dial *#06# and look or the imei matches the imei of the box (make sure you have the origional box if you dont have this then open the back of your phone, there is a sticker label with your s/n and imei if imei is not good then skip to step 9
Step 7) now if your s/n is ok skip to step... if its not right then download a root explorer and go to /efs/factoryapp and edit the serial no file with a text editor and enter your s/n there now save it and imei and s/n should be alright
Step 8) Now, for IF the IMEI is correct and everything is fully functional, then delete the earlier made backup of EFS and baseband and make a new one with the working partition, then save it somewhere safe on an external drive, the cloud or on an USB, or just a pc that you will never reset or wipe its data.
Step 9) now for if the IMEI is not correct or this guide doesn't work then I can't help you any further except for if you have any questions, however I found a guide for the Samsung galaxy s7/Edge (if you have s8 then click same link because the thread has a link to s8) by Cubz (thanks to Cubz for his guide)
Link: https://www.google.com/amp/s/forum....ow-to-fix-check-drk-imei-issues-t3379516/amp/
S7/E/8 only and some other models as long its an s7 (edge) or s8/+
******* Some tips when you follow the guide*******
1) when you flash combination firmware and it gives you errors then dial *#1234# and look at the cp it should have UX in it (X could be 1,2 or 3 download the correct firmware with the correct bootloader version you can upgrade from u1 to u2 and u2 to u3 but not downgrade from 3 to 2 or 2 to 1
2) if it didn't work then flash back to stock and fully delete everything in efs folder then retry (this is actually just guide B) its better to follow the guide above
3) if you got bootloader exception error then keep tapping the home button fast until it reboots then just manually reboot and enter download mode
The first method was tested and worked on SAMSUNG GALAXY S7 EDGE SM-935F it may work on other Samsung devices and maybe other android devices but I cannot guarantee that it works on your device
** I take no responsibility for any damaged device, make sure you take a back up so you can go back to the state before you started following this guide!**
If the device gets bricked then always flash back to stock, if you cant enter download mode then just wait until your battery drains and then when you put it in the charger it may start up automatically so enter download mode fast or if you got bootloader exception error then keep tapping the home button fast until it reboots then just manually reboot and enter download mode
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Please donate and like this thread if you found this helpful, I have experienced this problem my self and it costed me €60! I said NO its too expansive so then I found this solution and now I am sharing it to the world, I could have let this guide cost €61 but my guides and solutions are free a support would be great for finding this out
Happy flashing and please confirm in the comments below if it worked for your device or not
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oh no. i accidentally deleted the efs partition and it can't mount anymore what im gonna do now. im fvcked up please somebody help me
bamcarpio123 said:
oh no. i accidentally deleted the efs partition and it can't mount anymore what im gonna do now. im fvcked up please somebody help me
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Have you created a back up of your efs partition? I have clearly written it in the guide with all caps. If you haven't made a back up, please do so to avoid getting into this situation in the future.
*WARNING* *TAKE A NANDROID BACKUP OF EFS AND BASEBAND BEFORE STARTING*
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Anyways, I'm sorry to hear you got your self in this situation. Even though it has been a long time since I did this kind of stuff, I still remember that it's possible to fix this issue. I am sure that I have been in this situation before my self and that I somehow managed to get it back. Try to back up all your data, then flash stock rom with CSC file and not Home CSC
vigilante said:
Have you created a back up of your efs partition? I have clearly written it in the guide with all caps. If you haven't made a back up, please do so to avoid getting into this situation in the future.
Anyways, I'm sorry to hear you got your self in this situation. Even though it has been a long time since I did this kind of stuff, I still remember that it's possible to fix this issue. I am sure that I have been in this situation before my self and that I somehow managed to get it back. Try to back up all your data, then flash stock rom with CSC file and not Home CSC
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Click to collapse
I'm sorry for being so stupid because I continued without performing a backup in TWRP, I forgot to back up the EFS, and when I panicked because I was already screwed up, I deleted the efs folder—which is incorrect. I deleted the efs partition before I saw this thread. And now it always says, "failed to mount /efs (invalid argument)" and I've done everything, and it seems like everything is done, I have no idea what to do. I haven't slept for four days and there is still no hope. but my phone is still okay with the stock firmware, but it always restarts. I did almost everything but still nothing
My phone's current csc code is THL (Thailand), but the original is XTC (Philippines), which is my nation, thus I'm curious why THL? of course I flash the right firmware which is the csc is XTC but if I check the CSC the CSC is still THL. I tried to change the csc using tools, but it cannot be change. There may be no hope. I'm worried about losing my phone, yet I'm to blame.
If I lose my IMEI, it won't matter. But the thing is my phone is always restarting every minute.
(can someone know how to disable auto-reboot so i can still use my phone even the EFS is damaged?)
ALSO THANKYOU FOR YOUR REPLY! I APPRECIATE IT!
EDIT: OH I FIX THE EFS PARTITION. NOW MY PROBLEM IS HOW TO GET OUT FROM THIS DARKNESS. HOW CAN I FIX THE IMEI AND BASEBAND WHAT EVER? HMM. BUT I WON'T GIVE UP
bamcarpio123 said:
My phone's current csc code is THL (Thailand), but the original is XTC (Philippines), which is my nation, thus I'm curious why THL? of course I flash the right firmware which is the csc is XTC but if I check the CSC the CSC is still THL. I tried to change the csc using tools, but it cannot be change. There may be no hope. I'm worried about losing my phone, yet I'm to blame.
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Click to collapse
Try to download this tool if you haven't already: https://samfirmtool.com/
I like to use this tool when flashing stock rom because I can download specific versions of stock ROMS and also enter the correct region in it. And to top it off the download is really quick (depending on your download speed of course)
Enter your device model number and at region enter the csc you need. It should download the correct files with the right csc. However, I did find this thread saying it is impossible to change your csc to XTC, but it is always worth a try.
If the CSC is XTC then try to follow this guide again to fix your EFS.
If it is not XTC then try to install a custom rom for your phone that has an aroma installer that allows you to pick a CSC, it might also help with the EFS problem but I am not sure.
EDIT: OH I FIX THE EFS PARTITION. NOW MY PROBLEM IS HOW TO GET OUT FROM THIS DARKNESS. HOW CAN I FIX THE IMEI AND BASEBAND WHAT EVER?
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Since you have mentioned that your EFS partition is fixed, try to follow the guide again but correctly this time. Maybe it will work this time.
Can you tell me how you checked what your CSC is? And which phone do you have? In case this didn't work.
.
.
vigilante said:
Try to download this tool if you haven't already: https://samfirmtool.com/
I like to use this tool when flashing stock rom because I can download specific versions of stock ROMS and also enter the correct region in it. And to top it off the download is really quick (depending on your download speed of course)
Enter your device model number and at region enter the csc you need. It should download the correct files with the right csc. However, I did find this thread saying it is impossible to change your csc to XTC, but it is always worth a try.
If the CSC is XTC then try to follow this guide again to fix your EFS.
If it is not XTC then try to install a custom rom for your phone that has an aroma installer that allows you to pick a CSC, it might also help with the EFS problem but I am not sure.
Since you have mentioned that your EFS partition is fixed, try to follow the guide again but correctly this time. Maybe it will work this time.
Can you tell me how you checked what your CSC is? And which phone do you have? In case this didn't work.
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Click to collapse
My phone is Samsung Galaxy J8. Before i start to flash custom rom, I took a snapshot of the device's hardware information and discovered that the csc is really XTC. I have completed all the necessary steps. I did everything right, but nothing actually changed. I'm so exhausted that I might just give up. I appreciate your assistance.
If I can't retrieve the imei, it's fine, but unfortunately my phone is always restarting
EDIT: MY PHONE IS NOW FIXED. THE SIMS ARE NOW WORKING, THE SIGNAL IS BACK AND I FEEL SO HAPPY. HOW DO I FIX? WELL I USED THIS METHOD, I DELETE ALL THE FILES FROM EFS FOLDER (NOT THE PARTITION JUST THE FILE INSIDE OF IT) THEN I FLASH THE LATEST STOCK ROM WHICH IS ANDROID 10 BUT THE CSC FILE IS FROM ANDROID 9 AND AFTER THAT I USED TFT SAMSUNG MODULE WHICH IS VERY HELPFUL AND LEGIT TOOL AND ITS 100% FREE!. THEN I FIX THE IMEI AND BASEBAND USING THAT TOOL AND YES THAT SOFTWARE IS A BEAST. AND NOW ITS WORKING PROPERLY. IT TOOK ME 2 WEEKS TO SOLVE THE PROBLEM BUT IN REALITY ITS VERY SIMPLE HAHAHA! IT SAVES ME FROM SPENDING MONEY JUST TO SAVE MY PHONE BUT I DO NOT KNOW THAT I AM THE ONE WHO WILL FIX MY PHONE HAHA HOW COOL IS THAT. JUST DON'T GIVE UP NO MATTER WHAT HAPPENS!
#FVCKTHATZ3XBOX
THANKS TO THIS METHOD AND TO SIR VIGILANTE.
EVERYTHING IS POSSIBLE JUST DONT GIVE UP EVEN YOU'RE TIRED.