Related
This Guide works on both the S7 and S7 Edge.
This also works on other Samsung device including Snapdragon variants as long as you have the correct files for your device.
FIll out my form if you require assistance
S8 users go HERE
This guide is for those of you with EFS issues. This can cause your IMEI and/or Baseband to show Unknown or a bunch of zeros. The guide can also be used to fix DRK errors, but if your Device Root Key (DRK) is corrupt or missing, this guide will fix your IMEI/Baseband but will not fix your DRK error.
The guide gives instructions on how to flash the combination firmware. This installs the factory binary which allows your phone to read your IMEI and DRK. This should then restore your IMEI and DRK and then when you flash stock, the phone will be working as normal. If the Device Root Key (DRK) is corrupt or missing, this guide will only fix the IMEI, the DRK errors will still remain.
I take no responsibility for any issues that arise from following this guide. Do so at your own risk. The smallest mistake can cause a much bigger issue so make sure you know what you are doing and follow every step word for word!
Please note that this will not work for everyone
Some people will still face getting stuck at boot when flashing the combination firmware.
This means you have at some point flashed firmware that is later than the latest combination firmware and unfortunately, it is not possible to fix this by downgrading the firmware to an earlier version.
Before you proceed, you're going to need the following:
A copy of your phones stock firmware saved to your computer. If you do not already have these available on your computer, you can go HERE or you can use this tool to download the latest firmware for your device. Alternatively, you can find your firmware on SamMobile but this can take forever to download with a free account.
[IMPORTANT!] Switch off Factory Reset Protection (FRP) by going into Developer options and turning on 'OEM Unlock'. If you do not see 'Developer Options' under settings, then go to Settings > About Device > Software Info and keep tapping 'Build Number' until it confirms "You are now a developer" then go back to the main Settings screen and you will see Developer options.
if you skip this step, you only have yourself to blame if something goes wrong.
Odin. If you do not have it, download it from here
The Combination Firmware (Factory Binary). Download the combination firmware relevant to your phone (links below) and extract the .rar archive somewhere you will remember.
S7 International [G930F/FD] - (Mirror) [UPDATED 03/11/2017]
S7 Edge International [G935F/FD] - (Mirror) [UPDATED 03/11/2017]
S7 Canada [G930W8] - (Mirror)
S7 Edge Canada [G935W8] - (Mirror)
S7 Edge AT&T [G935A] - (Mirror)
Files for other models available on request via my form
Now you have all the files you need, follow the guide below to repair your S7.
There are 2 methods.
The first method (Method 1) is quick and can solve most issues. Especially DRK errors.
The second method (Method 2) is to use if Method 1 does not work. This guide requires more work and therefore takes a little longer.
Method 1
Boot into recovery and wipe data.
Put your phone straight into Download Mode (do not reboot or boot up the system between wiping data and booting to download mode). To do this, you can use recovery to reboot to Download mode. Alternatively, switch off your phone and hold 'Power' + 'Volume Down' + 'Home' until it boots to download mode. Then connect the phone to your computer with your USB cable.
Open Odin, press the 'AP' button and select the Combination tar/md5 file you downloaded/extracted earlier. Then press the 'Start' button. (If you have any errors while flashing, first make sure you are using the correct firmware for your phone. If it is still throwing errors, remove the ".md5" from the end of the file name and try again).
When Odin has completed flashing the combination file, it should boot into the Factory Binary. You may get a message asking you to reboot. Click reboot (If you do not get prompted to reboot, do a reboot manually).
When it has booted back up. Press the 'IME' button at the bottom of the screen and type *#06#. You should now see your IMEI has restored.
Now restore the stock firmware using the firmware you downloaded earlier. (If you're not sure how, follow this guide)
You should now have a restored IMEI. If not, this means your efs is damaged. Therefore, you will need to follow Method 2 below.
Method 2
You will need to start on a rooted device. If you are not rooted, follow this guide to root your phone or flash CF Auto Root in Odin.
Before you continue, it is extremely important that you backup your EFS partition, even if it is corrupt. You can backup the EFS partition using THIS APP. If you skip this step, you only have yourself to blame if something goes wrong and you have no backup to restore.
Download Root Explorer (Paid) or Root Browser (Free). Open 'Root Explorer' or 'Root Browser' (whichever you installed) and browse to the /efs folder located in the root of the device.
Inside the /efs folder, delete everything EXCEPT the 'FactoryApp' and 'prov_data' folders.
Reboot. Make sure it does a full reboot. When the phone boots back up, you may some errors or unusual settings, this is normal and nothing to worry about.
Boot into recovery and wipe data.
Put your phone straight into Download Mode (do not reboot or boot up the system between wiping data and booting to download mode). To do this, you can use recovery to reboot to Download mode. Alternatively, switch off your phone and hold 'Power' + 'Volume Down' + 'Home' until it boots to download mode. Then connect the phone to your computer with your USB cable.
Open Odin, press the 'AP' button and select the Combination tar/md5 file you downloaded/extracted earlier. Then press the 'Start' button. (If you have any errors while flashing, first make sure you are using the correct firmware for your phone. If it is still throwing errors, remove the ".md5" from the end of the file name and try again).
When Odin has completed flashing the combination file, it should boot into the Factory Binary. You may get a message asking you to reboot. Click reboot (If you do not get prompted to reboot, do a reboot manually).
When it has booted back up. Press the 'IME' button at the bottom of the screen and type *#06#. You should now see your IMEI has restored.
Now restore the stock firmware using the firmware you downloaded earlier. (If you're not sure how, follow this guide)
You should now have a restored IMEI.
Still Getting a DRK error?
If you are still getting a DRK error then you probably have a corrupt or missing Device Root Key (DRK). Unfortunately, this cannot be fixed without a JTag box (which aren't cheap). However, you can continue to use the phone as normal by flashing the no-verity zip in TWRP. You can then go ahead and use your phone as normal. Unfortunately, you will no longer be able to receive OTA updates. All updates will need to be made through ODIN and the no verity zip will need to be flashed every time a new firmware is flashed. However, you can still use custom roms as normal. Other than OTA updates, the DRK issue will have no effect on the use of the phone. You can still update via Smart Switch but will need to install TWRP and flash the no verity zip after every update.
If you would like any assistance in fixing your issue such as Method 1 & 2 do not work for you or if you have a different model than what is listed in this guide, please complete THIS FORM and I will try to get back to you ASAP (unfortunately I cannot always respond)
Many thanks to everyone that has donated!!
If you would like to donate, you can do so by clicking here
As you can imagine, finding fixes and assisting people takes a lot of my time so it's always great to receive a donation. Thank you.
Goooooooooooooooood,tnx
Very well detailed and clear guide bro. Thanks for posting this.
Tapped on my Echoe'd out G935F
Very good guide. Cubz helped me get my IMEI back so he knows his stuff. Thanks again.
Sent from my SM-G935F using XDA-Developers mobile app
ecera said:
Very good guide. Cubz helped me get my IMEI back so he knows his stuff. Thanks again.
Sent from my SM-G935F using XDA-Developers mobile app
Click to expand...
Click to collapse
No problem. Was happy to help
What else can this factory binary do? Can it restore the original CSC? I had an AFG CSC phone and after playing around with different roms, when I go back to the original firmware (although it is a multi CSC), it chooses XSG rather than AFG no matter what I do.
onurd said:
What else can this factory binary do? Can it restore the original CSC? I had an AFG CSC phone and after playing around with different roms, when I go back to the original firmware (although it is a multi CSC), it chooses XSG rather than AFG no matter what I do.
Click to expand...
Click to collapse
No it doesn't. Where are you seeing the CSC?
Sent from my SM-G935F using Tapatalk
CuBz90 said:
No it doesn't. Where are you seeing the CSC?
Sent from my SM-G935F using Tapatalk
Click to expand...
Click to collapse
I haven't seen CSC. anywhere. I was just wondering what this firmware had up its sleeves to "fix" things.
onurd said:
I haven't seen CSC. anywhere. I was just wondering what this firmware had up its sleeves to "fix" things.
Click to expand...
Click to collapse
What I meant is that when you say you now have a different CSC, how did you know this.
This firmware basically just feels the phone where to read the imei, baseband, and other info. This does not include the CSC.
PM me for my email address and then if you email me a backup of your EFS, I will have a look and restore your CSC for you.
Sent from my SM-G935F using Tapatalk
The original firmware of the phone was AFG for csc. Now even after using odin to get the same firmware, it defaults to xsg. Not a big deal but I don't know where the csc information is stored.
Sent from my SM-G935F using XDA Premium 4 mobile app
That's what I mean by the original csc having disappeared.
sent a PM about getting an EFS file, I hope you get it
onurd said:
That's what I mean by the original csc having disappeared.
Click to expand...
Click to collapse
Read this
Code:
http://forum.xda-developers.com/showpost.php?p=49425630&postcount=3
hiepgia said:
Read this
Code:
http://forum.xda-developers.com/showpost.php?p=49425630&postcount=3
Click to expand...
Click to collapse
I see. Phone info won't show the original csc without root.
But how do you explain that despite using the appropriate firmware with odin, it always defaults to xsg rather than the original afg from the multi csc firmware?
Hey so I tried flashing the G935_Factory_Binary.tar file on a galaxy s7 edge, and the thing is stuck on splash screen. any idea why?
onurd said:
I see. Phone info won't show the original csc without root.
But how do you explain that despite using the appropriate firmware with odin, it always defaults to xsg rather than the original afg from the multi csc firmware?
Click to expand...
Click to collapse
Because you flashed another region firmware, wipe data -> All original csc will get remove. You flash back and will only get default csc. If you rooted, you can change to afg csc
Thank you CuBz90 for your great work.
I flashed the superman rom but selected the wrong CSC.
I always backup my EFS in internal storage, but today I accidently wiped my entire internal storage. LOL
I have tried your method but unfortunately my imei is still missing, I'm totally frustrating. I will follow your thread. hope some expert can figure this out.
To everyone that has PM'd me, please bare with me. I have received a hell of a lot of PM's and I am trying to get through them all. Don't worry, I will definately reply and help you as best as I can.
Please make sure you are on your original stock firmware before trying this method. I notice a lot of people have PM'ed about CSC, I will PM you with info on how to revert this but please follow my steps exactly how I write them, a lot of people have PM'ed me to say "it's not working" but I have later found they are not following my steps exactly how I say and instead are taking shortcuts. If you take shortcuts then it's not going to work. I want to help you but you need to follow my exact instructions.
How to backup Efs without root?
Wanam app only works with root.
Sent from my SM-G935F using XDA-Developers mobile app
Help me?
Who can tell me efs file? Thank
Gửi từ SM-G930F của tôi bằng cách sử dụng Tapatalk
Ok, here goes.
Have a SM-G930W8 (Canada, Rogers, S7). Was running a 7.0 ROM from XDA (ambassadii? sp?). I disabled developer options to check a possible issue transferring files from my PC to the S7's SD Card. I restarted the device.
Custom binary blocked by FRP lock. No problem, thought I. I'll boot into Download Mode, fire up Odin and flash the stock rom back to the device (also what I've read in most every thread I've come across). Launch ODIN as admin, see the device is connected, select the proper AP(also BL, CSC and CP...I'm thorough) file to flash (from Sammobile I think it was), make sure repartition is unchecked and hit Start.
Here's the result...wait I can't post them but I have the screen shots! The phone shows Secure Check Fail (PIT). Odin gives an error at that step as well.
I've tried Kies (there's no SN anywhere on my device or on the box) so that doesn't work. Smart Switch, same issue.
Does ANYONE out there have any clue what I can attempt next? Sending it in for service will likely cost as much as a new device, with the warranty void. Thank you very much in advance.
chewtoy0 said:
Ok, here goes.
Have a SM-G930W8 (Canada, Rogers, S7). Was running a 7.0 ROM from XDA (ambassadii? sp?). I disabled developer options to check a possible issue transferring files from my PC to the S7's SD Card. I restarted the device.
Custom binary blocked by FRP lock. No problem, thought I. I'll boot into Download Mode, fire up Odin and flash the stock rom back to the device (also what I've read in most every thread I've come across). Launch ODIN as admin, see the device is connected, select the proper AP(also BL, CSC and CP...I'm thorough) file to flash (from Sammobile I think it was), make sure repartition is unchecked and hit Start.
Here's the result...wait I can't post them but I have the screen shots! The phone shows Secure Check Fail (PIT). Odin gives an error at that step as well.
I've tried Kies (there's no SN anywhere on my device or on the box) so that doesn't work. Smart Switch, same issue.
Does ANYONE out there have any clue what I can attempt next? Sending it in for service will likely cost as much as a new device, with the warranty void. Thank you very much in advance.
Click to expand...
Click to collapse
Are you able to boot into recovery?
If not you could try to ONLY flash the stock recovery>boot recovery>wipe everything then boot to download mode and flash complete stock firmware via odin.
or flash stock firmware with the same CSC as your custom rom has/ flash "HOME_CSC" instead of "CSC..."
good luck
mrd0pe said:
Are you able to boot into recovery?
If not you could try to ONLY flash the stock recovery>boot recovery>wipe everything then boot to download mode and flash complete stock firmware via odin.
or flash stock firmware with the same CSC as your custom rom has/ flash "HOME_CSC" instead of "CSC..."
good luck
Click to expand...
Click to collapse
Can't get into Recovery no. Which file of the lot has the stock recovery in it?
chewtoy0 said:
Can't get into Recovery no. Which file of the lot has the stock recovery in it?
Click to expand...
Click to collapse
Try to only flash AP, I did have the same problem as you describe but I cant remember how I resolved it, I'm on G930F tho
Your S/N is on the rear of the phone it can be a pain to see but it is there. Use smart switch to restore the firmware. Just click emergency firmware restore.
It is? The IMEI is there but I didn't see the SN. Also my phone is black so that doesn't help.
I will have another look.
mrd0pe said:
Try to only flash AP, I did have the same problem as you describe but I cant remember how I resolved it, I'm on G930F tho
Click to expand...
Click to collapse
I did that. No dice.
I had the same issue as you. Used the same rom and disabled developer options. I downloaded stock firmware.. flashed it with odin. It actually took 2 tries. The first time I could see only 1/4 of the screen. The second time i flashed stock firmware from another country and it worked. You might actually have to do a hard factory reset if you cant unlock your phone.. for some reason. Then I let kies do its magic because I could then see my S/N. Right now I still feel my phone slightly different. Messenger is unstable for some reason also.
Ok.
Checked the back of the device for a SN#. Mine's black so I used a flashlight. It's not there. The Model #, IMEI, FCC ID# and IC# are all there. Does someone have a blurred out screeny of where THEY found their SN# on the back of the device?
Tried flashing with Odin the CSC(home) and AP files (stock MM from my region). Got: Custom Binary (Boot) blocked by FRP Lock.
Tried flashing TWRP again, to TRY to enter into recovery...same message.
With just the AP selected, ODIN seems to hang at "Get PIT for mapping" and fails. I'm running it again to make sure it's not a bad connection with the device.
Same result, hangs at "Get PIT for mapping".
chewtoy0 said:
Ok.
Checked the back of the device for a SN#. Mine's black so I used a flashlight. It's not there. The Model #, IMEI, FCC ID# and IC# are all there. Does someone have a blurred out screeny of where THEY found their SN# on the back of the device?
Tried flashing with Odin the CSC(home) and AP files (stock MM from my region). Got: Custom Binary (Boot) blocked by FRP Lock.
Tried flashing TWRP again, to TRY to enter into recovery...same message.
With just the AP selected, ODIN seems to hang at "Get PIT for mapping" and fails. I'm running it again to make sure it's not a bad connection with the device.
Same result, hangs at "Get PIT for mapping".
Click to expand...
Click to collapse
Try to flash Nougat firmware, as that was what your custom rom was on right? I dont think it really matters though as I downgraded from stock 7.0 to stock 6.0.1 via odin without errors... But you can try
As an absolute last resort I would try to check the "re-partition"-tab and provide odin with a .pit file, then load everything (BL, AP, CP...) with stock firmware <<<< do this at your own risk, if you are not careful, your phone will be bricked
I am trying to flash MM back to it .
I'm not sure I want to mess with the re partition table...But it's already soft bricked.
Mine is also black. The S/N Is immediately next to the imei number I had to use a flash light to see it but it's deffinatly there.
Matty39856 said:
Mine is also black. The S/N Is immediately next to the imei number I had to use a flash light to see it but it's deffinatly there.
Click to expand...
Click to collapse
I'd show you a photo if I could. The IMEI is by itself on a third line of stuff. There's nothing else around it.
chewtoy0 said:
I'd show you a photo if I could. The IMEI is by itself on a third line of stuff. There's nothing else around it.
Click to expand...
Click to collapse
I'm not sure then. Have you tried flashing the latest unlocked version for your region? I remember on my s6 I had a similar problem that was caused because I was trying to flash a lower version of Android than what I previously had. So ended up flashing the latest unlocked version BTU for my region and it worked. Sorry I can't be of more help. It looks like the latest firmware is still 6.0.1 that's why it's blocking it from downgrading.
Was sent a PM by a person. Was skeptical at first, but in 10 minutes using TeamViewer, they fixed the issue by reflashing the device (as well as repartitioning it properly). I can't thank them enough.
This is the person on Facebook...
Unlock Network FRP Lock Remote Service
I recently purchased the Metropcs version of this device. The Google, Metro and Samsung apps constantly want to update after a reboot although I've updated them several times. Other apps I've installed and setup to my preferences reset as if I just installed them. I've factory reset and also reinstalled via Smart Switch using PC. Still the same issues persist. I've been unable to enjoy my device. Any suggestions would be appreciated. Also, where can I find the latest Odin flashable firmware ending in APK6. None of the suggested links/sites in this forum have it. Thank you.
imakulate said:
I recently purchased the Metropcs version of this device. The Google, Metro and Samsung apps constantly want to update after a reboot although I've updated them several times. Other apps I've installed and setup to my preferences reset as if I just installed them. I've factory reset and also reinstalled via Smart Switch using PC. Still the same issues persist. I've been unable to enjoy my device. Any suggestions would be appreciated. Also, where can I find the latest Odin flashable firmware ending in APK6. None of the suggested links/sites in this forum have it. Thank you.
Click to expand...
Click to collapse
You have a Nandroid problem brother. Go to sammobile.com and look up your model, SM-J700T1 (you can also flash the SM-J700T firmware the devices are identical) and download the APK6 firmware update. You can find a download for Odin here at xda. Now, before you flash anything at anytime ever, make sure you have USB debugging and OEM unlock ticked in developer options or you're screwed. After you download the zip extract it with 7z or Winrar on your computer and put the file in the AP slot in Odin. Once it confirms the md5 go to options (the second tab) in Odin and click Nandroid erase all, bootloader update and factory reset time. Make sure auto reboot is NOT clicked. Flash your phone, once finished unplug your phone and drop the battery for about thirty seconds. Power your phone on holding the recovery buttons so the update can erase your system, data and files and install it's system. You should see this screen twice. Once recovery runs twice you're good to go bro. Let me know how it goes.
Metabolic12 said:
You have a Nandroid problem brother. Go to sammobile.com and look up your model, SM-J700T1 (you can also flash the SM-J700T firmware the devices are identical) and download the APK6 firmware update. You can find a download for Odin here at xda. Now, before you flash anything at anytime ever, make sure you have USB debugging and OEM unlock ticked in developer options or you're screwed. After you download the zip extract it with 7z or Winrar on your computer and put the file in the AP slot in Odin. Once it confirms the md5 go to options (the second tab) in Odin and click Nandroid erase all, bootloader update and factory reset time. Make sure auto reboot is NOT clicked. Flash your phone, once finished unplug your phone and drop the battery for about thirty seconds. Power your phone on holding the recovery buttons so the update can erase your system, data and files and install it's system. You should see this screen twice. Once recovery runs twice you're good to go bro. Let me know how it goes.
Click to expand...
Click to collapse
Thank you so much for the reply. Believe me I searched for the answers using the Xda Google Advanced search as I've been around the forum for a minute and understand the dangers of being flamed. If there is a Xda link to the latest firmware for Metropcs please link me to it. At this moment I'm downloading the SM-J700T firmware. I never could find a straight answer as if it was compatible with Metropcs. As far as USB debugging, OEM unlock and unknown sources, I enable those on any phone/rom. Anyway, as soon as the download is finished I will follow your instructions and get back to you. Btw, are you using Titanium Backup and have you had good results restoring backups?
Yeah I only use and trust TB! Works great most of the time, I've only had a few issues with restoring data. That could be related to switching ROMS though. I haven't seen any APK6 firmware downloads on xda yet, unfortunately. I trust sammobile though, I've never had a problem with their firmwares.
Metabolic12 said:
Yeah I only use and trust TB! Works great most of the time, I've only had a few issues with restoring data. That could be related to switching ROMS though. I haven't seen any APK6 firmware downloads on xda yet, unfortunately. I trust sammobile though, I've never had a problem with their firmwares.
Click to expand...
Click to collapse
I did everything as instructed and everything went well, but I still encountered the same problem. Maybe that's why the phone is selling for $100 with a $60 rebate..bad batch or something. Never had this problem..highly annoyed.
imakulate said:
I did everything as instructed and everything went well, but I still encountered the same problem. Maybe that's why the phone is selling for $100 with a $60 rebate..bad batch or something. Never had this problem..highly annoyed.
Click to expand...
Click to collapse
Was the phone used when you bought it from metro?
Metabolic12 said:
Was the phone used when you bought it from metro?
Click to expand...
Click to collapse
No, not apparently so..I saw the guy cut the seal. I may return it for another one. Thank you for your help.:good:
Hi OP, not sure if this will still help or not but last night I downloaded the APK6 software from this site:
http://updato.com/firmware-archive-select-model?record=B165AF8AC6E611E69215FA163EE8F90B
Once downloaded, all I did is flash it in Odin via AP. I did not delete any data, and just let Odin reset the phone after it was done. Not only did it get me back to stock completely, but I also am now able to check for official updates. I am on Metro PCS as well, and it works great so far. Hopefully this helps, and hopefully you don't have just a bad lemon. All the best of luck to you.
EDIT: Forgot to mention that once I flashed ROM, I did have to factory reset due to apps that were on the custom ROM I flashed from not being present in the official build. After that, everything was golden.
TurtlePwr82 said:
Hi OP, not sure if this will still help or not but last night I downloaded the APK6 software from this site:
http://updato.com/firmware-archive-select-model?record=B165AF8AC6E611E69215FA163EE8F90B
Once downloaded, all I did is flash it in Odin via AP. I did not delete any data, and just let Odin reset the phone after it was done. Not only did it get me back to stock completely, but I also am now able to check for official updates. I am on Metro PCS as well, and it works great so far. Hopefully this helps, and hopefully you don't have just a bad lemon. All the best of luck to you.
EDIT: Forgot to mention that once I flashed ROM, I did have to factory reset due to apps that were on the custom ROM I flashed from not being present in the official build. After that, everything was golden.
Click to expand...
Click to collapse
Thanks for the direct link! Downloading now..if the problem persists after flashing this, it's back to Metro it goes.
imakulate said:
Thanks for the direct link! Downloading now..if the problem persists after flashing this, it's back to Metro it goes.
Click to expand...
Click to collapse
I've never seen anything like this man. I've had to delete all data and system before but once Odin ran nandroid I didn't have any problems. Good luck bro.
Hey guys, just an update. I have not returned the phone, but this is what's going on. I believe Google Play Services is the culprit. I can't get it to be stable. I've tried uninstalling updates and installing a update via a downloaded apk, wiping chache and data..all to no avail. But I discovered multiple copies of various files duplicated over and over. I was wondering why my nandroid backup was over 9 GB. I want to try to flash a custom rom to see if it remedies the issue. I see that there are only 2 in this particular forum and they both seem to have issues. Are there any others that are compatible from the other variants. Again I've searched, but there seems to be no straight answers. Here a screenshot of what I found in data/app. These files are multiple copies of Google Play Services. There were many more copies of maps and other apps.
where can i find a list of stock firmwares for this phone my is metropcs j700t1,im trying to remove frp
To make things clear, my S7 stopped working properly and kept freezing after a minute of it being turned on. I decided to quickly install an update I postponed because I thought it would work. Now I am stuck at the installing system update screen and it keeps getting stuck at 31%. I want to reflash it but not lose any data. Is this possible with Odin? Thanks in advance.
If you can get into Download Mode it should work
Volume Down & Home & Power
ODIN 3.12.3 or newer
Load all 4 firmware sections into ODIN
CSC = Wipe (Might be best to use this if HOME_CSC doesn't work because it's bricked)
HOME_CSC = No wipe
Boot Loop?
*Detection* said:
If you can get into Download Mode it should work
Volume Down & Home & Power
ODIN 3.12.3 or newer
Load all 4 firmware sections into ODIN
CSC = Wipe (Might be best to use this if HOME_CSC doesn't work because it's bricked)
HOME_CSC = No wipe
Click to expand...
Click to collapse
I have successfully done what you said after doing massive amounts of research and carefully completed the software reflash. I still have the same problem as it keeps freezing and turning off and back on again but this time the update screen is gone and I cannot enter my phone at all. I heard something of a stock rom or something. Can you please give me more incite of what to do?
**EDIT**: I am using sammobile.com to download the firmware for my S7, is there a specific one I should be downloading or all of them are the same?
Nashme Al-Hadid said:
I have successfully done what you said after doing massive amounts of research and carefully completed the software reflash. I still have the same problem as it keeps freezing and turning off and back on again but this time the update screen is gone and I cannot enter my phone at all. I heard something of a stock rom or something. Can you please give me more incite of what to do?
Click to expand...
Click to collapse
You just flashed the stock ROM with ODIN if you added AP, CP, BL and CSC to ODIN
You could try booting into recovery (Volume Up & Home & Power) and wiping the Cache partition, see if that helps
But you might find you need to factory reset the phone if that won't work, which will result in complete loss of all data on the phone
*Detection* said:
You just flashed the stock ROM with ODIN if you added AP, CP, BL and CSC to ODIN
You could try booting into recovery (Volume Up & Home & Power) and wiping the Cache partition, see if that helps
But you might find you need to factory reset the phone if that won't work, which will result in complete loss of all data on the phone
Click to expand...
Click to collapse
I tried that, still did not work. Again, I downloaded the firmware from sammobile.com with the same product number SM-G930F but there are a lot of them, do I need a specific one or any one of them should work?
*Detection* said:
You just flashed the stock ROM with ODIN if you added AP, CP, BL and CSC to ODIN
You could try booting into recovery (Volume Up & Home & Power) and wiping the Cache partition, see if that helps
But you might find you need to factory reset the phone if that won't work, which will result in complete loss of all data on the phone
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Click to collapse
I am seeing a lot of countries on the website, my phone says "UK" from the back but I downloaded firmware from Colombia. Did I mess up or do I need one from the UK as well? This is confusing and I am sorry for taking time off of your day. Thanks in advance.
Nashme Al-Hadid said:
I am seeing a lot of countries on the website, my phone says "UK" from the back but I downloaded firmware from Colombia. Did I mess up or do I need one from the UK as well? This is confusing and I am sorry for taking time off of your day. Thanks in advance.
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G930F?
BTU and XEU are United Kingdom unbranded ROMs, go for one of them
No problems, that's what the forums are for
*Detection* said:
G930F?
BTU and XEU are United Kingdom unbranded ROMs, go for one of them
No problems, that's what the forums are for
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Click to collapse
I tried that, still no hope. It just keeps freezing every 20 seconds and now I cannot even access the phone at all. I don't get it. Is it something with the hardware? I don't think so because it does not freeze on the download mode screen. Do I have to delete all my files or use CSC? Because I used HOME_CSC. If losing my files is the only option, is there a way to back them up now or is it too late?
Nashme Al-Hadid said:
I tried that, still no hope. It just keeps freezing every 20 seconds and now I cannot even access the phone at all. I don't get it. Is it something with the hardware? I don't think so because it does not freeze on the download mode screen. Do I have to delete all my files or use CSC? Because I used HOME_CSC. If losing my files is the only option, is there a way to back them up now or is it too late?
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It could be hardware, if the storage has failed it could cause those symptoms, download mode is not on the storage, think of it as CMOS vs HDD
There is Samsung Smart Switch which has an emergency firmware recovery tool, but pretty sure that will also wipe the phone
Not many options tbh, I mean apps you can reinstall, but if you had photos/videos that were not stored on a MicroSD card / backed up to PC, then yea you're gonna lose them
CSC or Boot to Recovery and factory reset will do the reset for you
Alternatively send it in for repair and ask them to recover the data if it is mission critical
Maybe someone else can think of another method to get your data back, but atm I can't think of anything else you could try
I haven't flashed TWRP on mine so not sure what functions you can use without wiping data (Which is necessary for certain features of TWRP to work) but TWRP can create a full Nandroid backup of the current system, and you can also restore sections of it using Titanium Backup once your phone is working again
TWRP will trip KNOX though so warranty will be void and certain apps will no longer work, such as Pay and Health etc
*Detection* said:
It could be hardware, if the storage has failed it could cause those symptoms, download mode is not on the storage, think of it as CMOS vs HDD
There is Samsung Smart Switch which has an emergency firmware recovery tool, but pretty sure that will also wipe the phone
Not many options tbh, I mean apps you can reinstall, but if you had photos/videos that were not stored on a MicroSD card / backed up to PC, then yea you're gonna lose them
CSC or Boot to Recovery and factory reset will do the reset for you
Alternatively send it in for repair and ask them to recover the data if it is mission critical
Maybe someone else can think of another method to get your data back, but atm I can't think of anything else you could try
I haven't flashed TWRP on mine so not sure what functions you can use without wiping data (Which is necessary for certain features of TWRP to work) but TWRP can create a full Nandroid backup of the current system, and you can also restore sections of it using Titanium Backup once your phone is working again
TWRP will trip KNOX though so warranty will be void and certain apps will no longer work, such as Pay and Health etc
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Click to collapse
I don't mind the apps, photos and videos since they are all backed up. But what about WhatsApp chats and contacts, will I lose those too? Because other than that, I would 100% do a factory reset.
*Detection* said:
It could be hardware, if the storage has failed it could cause those symptoms, download mode is not on the storage, think of it as CMOS vs HDD
There is Samsung Smart Switch which has an emergency firmware recovery tool, but pretty sure that will also wipe the phone
Not many options tbh, I mean apps you can reinstall, but if you had photos/videos that were not stored on a MicroSD card / backed up to PC, then yea you're gonna lose them
CSC or Boot to Recovery and factory reset will do the reset for you
Alternatively send it in for repair and ask them to recover the data if it is mission critical
Maybe someone else can think of another method to get your data back, but atm I can't think of anything else you could try
I haven't flashed TWRP on mine so not sure what functions you can use without wiping data (Which is necessary for certain features of TWRP to work) but TWRP can create a full Nandroid backup of the current system, and you can also restore sections of it using Titanium Backup once your phone is working again
TWRP will trip KNOX though so warranty will be void and certain apps will no longer work, such as Pay and Health etc
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Click to collapse
I also had some notes I wish to keep, they are not that important but would be very useful if there was a way to back them up or save them in a way.
Nashme Al-Hadid said:
I don't mind the apps, photos and videos since they are all backed up. But what about WhatsApp chats and contacts, will I lose those too? Because other than that, I would 100% do a factory reset.
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If you had WhatsApp backup enabled, the chats will be restored when you reinstall WhatsApp, if not then they'll be lost
Notes will be lost unless you used the Samsung memo app and have your Samsung Cloud Sync enabled to backup memos, which I'm pretty sure is enabled by default and requires you to disable it if you don't want it backing things up automatically
*Detection* said:
If you had WhatsApp backup enabled, the chats will be restored when you reinstall WhatsApp, if not then they'll be lost
Notes will be lost unless you used the Samsung memo app and have your Samsung Cloud Sync enabled to backup memos, which I'm pretty sure is enabled by default and requires you to disable it if you don't want it backing things up automatically
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I think I might do a factory reset. How do I go about doing that?
Nashme Al-Hadid said:
I think I might do a factory reset. How do I go about doing that?
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Either boot into recovery (Volume Up & Home & Power) wait for it to bring up the recovery menu (Takes a little while watching a Droid first) then choose Factory reset from the menu
Volume keys to navigate, Power key for action
Or Flash the firmware with ODIN again but choose CSC instead of HOME_CSC, that will auto reset after the flash
If it still fails after a reset it looks like a hardware issue
*Detection* said:
Either boot into recovery (Volume Up & Home & Power) wait for it to bring up the recovery menu (Takes a little while watching a Droid first) then choose Factory reset from the menu
Volume keys to navigate, Power key for action
Or Flash the firmware with ODIN again but choose CSC instead of HOME_CSC, that will auto reset after the flash
If it still fails after a reset it looks like a hardware issue
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Before doing this, I am a bit confused about which firmware I installed. How can I know which one is the exact one I need for my phone because I cannot exactly determine which one it is. All I know that it says "UK" on the back of my phone. Can you please help me find which one it is and link me to the exact firmware I need?
Nashme Al-Hadid said:
Before doing this, I am a bit confused about which firmware I installed. How can I know which one is the exact one I need for my phone because I cannot exactly determine which one it is. All I know that it says "UK" on the back of my phone. Can you please help me find which one it is and link me to the exact firmware I need?
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Boot into Download mode and check the model number at the top
Should say G930F if the phone is from the UK
Then choose either the ROM from your carrier, or BTU/XEU for unbranded
You have already flashed a ROM though, so it would make sense to just flash that same one again but use CSC
Or try a factory reset from recovery first
*Detection* said:
Boot into Download mode and check the model number at the top
Should say G930F if the phone is from the UK
Then choose either the ROM from your carrier, or BTU/XEU for unbranded
You have already flashed a ROM though, so it would make sense to just flash that same one again but use CSC
Or try a factory reset from recovery first
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There are more than one G930F on the website from different countries. Can you please find one that matches mine? Do you need more info about my phone?
Nashme Al-Hadid said:
There are more than one G930F on the website from different countries. Can you please find one that matches mine? Do you need more info about my phone?
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That's what I'm telling you lol
Either pick one from your country (United Kingdom) which is either BTU or XEU code as shown in the dropdown on sammobile site, or choose one from your carrier, o2, Vodafone, EE, H3G (Three) etc
Updato.com is a faster site to download from
Code:
http://updato.com/firmware-archive-select-model?q=G930F&r=btu&order=date&dir=desc
Pick the latest dated ROM (August 9th) G930FXXU1DQG1
But you said you already flashed a ROM with ODIN, so why download another one?
*Detection* said:
That's what I'm telling you lol
Either pick one from your country (United Kingdom) which is either BTU or XEU code as shown in the dropdown on sammobile site, or choose one from your carrier, o2, Vodafone, EE, H3G (Three) etc
Updato.com is a faster site to download from
Code:
http://updato.com/firmware-archive-select-model?q=G930F&r=btu&order=date&dir=desc
Pick the latest dated ROM (August 9th) G930FXXU1DQG1
But you said you already flashed a ROM with ODIN, so why download another one?
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Okay, I am downloading it now and going to be attempting it again. Should I change any of the options on Odin or just keep them the same? Also, I am trying HOME_CSC again to see if that might work. And if it doesn't, I am going with CSC.
Nashme Al-Hadid said:
Okay, I am downloading it now and going to be attempting it again. Should I change any of the options on Odin or just keep them the same? Also, I am trying HOME_CSC again to see if that might work. And if it doesn't, I am going with CSC.
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No, leave ODIN as it is
I rooted last night using SamPwn and everything was working well until today... After one of the reboots I did today my phone stopped showing service, my sim card, network operators, and it wont hold an apn.
I have tried power cycling, removing the sim, resetting network settings, and wiping all cache.
Is there any way to only reflash the network portion? I have rooted and flashed quite a few things but havent bothered going into the intricacies and I feel as though this phone has less wiggle room for error. Hopefully you guys can get me a swift answer.
Thanks in advance!
BumpinPanda said:
I rooted last night using SamPwn and everything was working well until today... After one of the reboots I did today my phone stopped showing service, my sim card, network operators, and it wont hold an apn.
I have tried power cycling, removing the sim, resetting network settings, and wiping all cache.
Is there any way to only reflash the network portion? I have rooted and flashed quite a few things but havent bothered going into the intricacies and I feel as though this phone has less wiggle room for error. Hopefully you guys can get me a swift answer.
Thanks in advance!
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Click to collapse
Searching the SamPWND thread should net you a literal ton of solutions, but I'll try to sum it up for you.
Extract the stock firmware for whatever version you're running (QGL,QH3, ETC), and be sure to use 7zip for all of these extraction/archiving steps, then extract the modem.bin from the CP file and NON_HLOS.bin from the BL file. Now, highlight modem and non_hlos files and use 7zip to add to archive, you'll want to keep everything default, and the end result should be a tar file with whatever name you chose for the archive. Use Odin to flash this archive in the AP slot, it should work fine, but if not, you can try using the modified Odin (all default options for both). Once done, be sure to reboot to recovery and clear the cache and also a Network factory reset from settings if you're still unable to gain signal. If you're still not getting signal, you can try flashing the entire CP file and Home_CSC file (be sure to use the HOME_CSC, as regular CSC will overwrite root and start you over from scratch) using their respective slots in odin, though if modem and non_hlos doesn't get it up and running, that may be a redundant step.
Good luck!
instead you can flash combination file COMBINATION_FA70_G955USQU1AQD8 , just google for it. that will help to get Network Signal again
IJoxer said:
Searching the SamPWND thread should net you a literal ton of solutions, but I'll try to sum it up for you.
Extract the stock firmware for whatever version you're running (QGL,QH3, ETC), and be sure to use 7zip for all of these extraction/archiving steps, then extract the modem.bin from the CP file and NON_HLOS.bin from the BL file. Now, highlight modem and non_hlos files and use 7zip to add to archive, you'll want to keep everything default, and the end result should be a tar file with whatever name you chose for the archive. Use Odin to flash this archive in the AP slot, it should work fine, but if not, you can try using the modified Odin (all default options for both). Once done, be sure to reboot to recovery and clear the cache and also a Network factory reset from settings if you're still unable to gain signal. If you're still not getting signal, you can try flashing the entire CP file and Home_CSC file (be sure to use the HOME_CSC, as regular CSC will overwrite root and start you over from scratch) using their respective slots in odin, though if modem and non_hlos doesn't get it up and running, that may be a redundant step.
Good luck!
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Thank you for this. I did a few queries in there and didn't come up with much but that could be due to my lack of optimized searching.
I ended up reflashing the csc and it wiped all my data but restored my data. I was at work when this happened and, being that I work in a Verizon, I need my phone quite a lot. I have since backed up my EFS and noted the suggestions in this thread so it will not happen again.
Once again I appreciate the help and I am sure it will save me in the near future!
012345678 said:
instead you can flash combination file COMBINATION_FA70_G955USQU1AQD8 , just google for it. that will help to get Network Signal again
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I will try this next time this happens, thanks!
BumpinPanda said:
I will try this next time this happens, thanks!
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Just note that the combination firmware he referenced is a universal firmware, and if you use a vzw firmware (ie QGL), it tends to cause issues with data/connectivity. Mixing carrier firmware and universal firmware has always cause me to start fresh, after 20+ roots using SamPWND, we finally came to that consensus.
Just something to keep in mind, 955U1 and 955U do not mix, regardless of version.
IJoxer said:
Just note that the combination firmware he referenced is a universal firmware, and if you use a vzw firmware (ie QGL), it tends to cause issues with data/connectivity. Mixing carrier firmware and universal firmware has always cause me to start fresh, after 20+ roots using SamPWND, we finally came to that consensus.
Just something to keep in mind, 955U1 and 955U do not mix, regardless of version.
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Funnily enough, besides this issue, my service improved over stock with the root.
But even if that's the case doesn't the U1 simply signify an unlocked firmware version? Why does that cause an issue?
BumpinPanda said:
Funnily enough, besides this issue, my service improved over stock with the root.
But even if that's the case doesn't the U1 simply signify an unlocked firmware version? Why does that cause an issue?
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Well, technically, it stands for a universal firmware, but I knew what you meant. 955U firmware is carrier specific, while U1 is Universal, as in it should apply to whichever carrier you have, so long as your sim card is in working order and tells the firmware which CSC to use correctly.
For whatever reason, when rooted and flashing the U1 firmware, the csc doesn't quite stick as it should, at least in my observations. Obviously flashing the modem and non_hlos is supposed to cure this issue (no data/connectivity/modem crashes), but I find it doesn't do much but change it in prop settings. My theory is that it's something to do with the efs partition superceding the csc flashed to system after using Ufirmware for root.
Regardless, I'm still trying to find a way to alleviate this issue, but it's a known bug that should be noted when rooting and using a mixture of U and U1 firmware.
IJoxer said:
Well, technically, it stands for a universal firmware, but I knew what you meant. 955U firmware is carrier specific, while U1 is Universal, as in it should apply to whichever carrier you have, so long as your sim card is in working order and tells the firmware which CSC to use correctly.
For whatever reason, when rooted and flashing the U1 firmware, the csc doesn't quite stick as it should, at least in my observations. Obviously flashing the modem and non_hlos is supposed to cure this issue (no data/connectivity/modem crashes), but I find it doesn't do much but change it in prop settings. My theory is that it's something to do with the efs partition superceding the csc flashed to system after using Ufirmware for root.
Regardless, I'm still trying to find a way to alleviate this issue, but it's a known bug that should be noted when rooting and using a mixture of U and U1 firmware.
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Are you staying on root or stock? The root has helped my data issue slightly over stock and apparently the update for the stock firmware to fix my issue is in the works (but not yet released).
If you do find a stable solution let me know, it's working for now but I still drop to 1x frequently (which happened before root as well).
Thanks again for your help
BumpinPanda said:
Are you staying on root or stock? The root has helped my data issue slightly over stock and apparently the update for the stock firmware to fix my issue is in the works (but not yet released).
If you do find a stable solution let me know, it's working for now but I still drop to 1x frequently (which happened before root as well).
Thanks again for your help
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Root does seem to help if, like I said, you don't mix and match firmwares, I'm on stock at the moment but will be rerooting tonight. There is a new carrier firmware for vzw and TMO, I'll be using vzw to accomplish the second part of the root method and updating to it (QI6). I'll update with how it goes later tonight or tomorrow, but here the link for the newest vzw firmware.
http://updato.com/firmware-archive-select-model?record=E15BA006A8B211E7963AFA163EE8F90B
IJoxer said:
Root does seem to help if, like I said, you don't mix and match firmwares, I'm on stock at the moment but will be rerooting tonight. There is a new carrier firmware for vzw and TMO, I'll be using vzw to accomplish the second part of the root method and updating to it (QI6). I'll update with how it goes later tonight or tomorrow, but here the link for the newest vzw firmware.
http://updato.com/firmware-archive-select-model?record=E15BA006A8B211E7963AFA163EE8F90B
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Ah, I see. Root helped even though I used the universal firmware in the SamPWND thread (that could just be an individual issue regarding my area/device).
I'd love to see the results of the new firmware so I am looking forward to your update! Was that the main reason you chose to remove root? That and the 80% situation are the only things bothering me so far. Appreciate the link, you saved me a search