[SOLVED] How to downgrade S7 Edge SM-G935FD from android 8.0 Oreo to Official 7.x? - Samsung Galaxy S7 Edge Questions and Answers

Hello, I have recently installed Android 8.0 (Unofficial) on my S7 edge as mentioned in this thread by ProtoDeVNan0. And also installed TWRP recovery as explained here to upgrade it. After installation figured that it has some issues with some features.
So now I am trying to downgrade to the latest official firmware.
But every time I download and install the official firmware zip file using TWRP, it says the zip file is corrupt. So I tried downloading from different sources and still it says it is corrupt in TWRP.
And then I tried using Odin after extracting the Zip file. Using the tar.md5 files inside it. It fails as well.
And also found no way to install the official recovery.
Is there any way I can downgrade from 8.0 to official 7.0? And also I would like to remove TWRP and install official recovery. Basically returning it to its original state.
Searched a lot and found no possible ways to do so.
Please help. Thank you
SOLUTION:
I have found the solution to the issue.
I previously tried using odin to load all the packages in the zip file all together which was the reason i was getting the error.
The solution is to tick and select AP file only in odin and start.
(in case stuck at meta-data unplug)
Then reset odin and re-start the phone into download mode again.
Now tick and select the CSC file (not HOME_CSC), and then start.
After the phone reboots, a factory data reset will occur and phone boots up.

Why are you using TWRP to attempt to install Official samsung firmware?
You do it all through ODIN, it'll put your device back to basically original setup state with stock firmware. Flash with CSC and not home_CSC, I assume you have no data you will need to backup before hand.
More info here:
http://updato.com/how-to/how-to-install-an-official-samsung-stock-firmware-using-odin

Which Version you use odin? I try your solution but dont work on my g935f?

BL not downgraded!
khan0412 said:
Hello, I have recently installed Android 8.0 (Unofficial) on my S7 edge as mentioned in this thread by ProtoDeVNan0. And also installed TWRP recovery as explained here to upgrade it. After installation figured that it has some issues with some features.
So now I am trying to downgrade to the latest official firmware.
But every time I download and install the official firmware zip file using TWRP, it says the zip file is corrupt. So I tried downloading from different sources and still it says it is corrupt in TWRP.
And then I tried using Odin after extracting the Zip file. Using the tar.md5 files inside it. It fails as well.
And also found no way to install the official recovery.
Is there any way I can downgrade from 8.0 to official 7.0? And also I would like to remove TWRP and install official recovery. Basically returning it to its original state.
Searched a lot and found no possible ways to do so.
Please help. Thank you
SOLUTION:
I have found the solution to the issue.
I previously tried using odin to load all the packages in the zip file all together which was the reason i was getting the error.
The solution is to tick and select AP file only in odin and start.
(in case stuck at meta-data unplug)
Then reset odin and re-start the phone into download mode again.
Now tick and select the CSC file (not HOME_CSC), and then start.
After the phone reboots, a factory data reset will occur and phone boots up.
Click to expand...
Click to collapse
STILL NOT DOWNGRADED!!
You can apply the solution described above (using ODIN to flash AP, CP and CSC with a previous version of firmware). However, the Boot-loader will remain under the latest version (since January 2018 update).
The problem is drastically worst for those who used to patch certificates before the January 2018. For those users, I will advise to not install the update from January 2018 because, they will not find any tools currently available to patch certificates and get the phone work a new. They can try but it will not be successful and the phone will keep saying "Emergency call only" or "not registered on network".
Anyone having successful experience to inform others please!
Thank you.
M. T. Coulibaly

Yes it Solved. You Need to have Stock Firmware of March , and extract PIT File, then flash Firmware with PIT File.
In Options tab check "F. Reset Time", "Auto Reboot", "Nand Erase", "Re-Partition" and "Phone Bootloader Update". Rest options must be UNCHECKED!!!
If anyone need Firmware of March for G935F and the PIT , then let me know.

HELP Corrupt Zip Stock ROM TWRP
..

therealchris said:
..
Click to expand...
Click to collapse
You must Flash it with Odin, with PIT , you must do it how i sad it in my last Post. I Upload Firmware and PIT now to Mega.

Please, someone help me
Sorry if my english is not good, i'm confused where to go for help.
I also experienced the same problem. I just tried installing android 8.0 (from the same link and way as you explained) and it works. but after I tried several times, a lot of bug that makes me uncomfortable.
So I plan to restore it to the official/original firmware version as before. I've tried using odin and also the same as you experienced, always fail when installing BL. And AP, CP, CSC works well.
Then, what should i do?
Can someone please help explain to me more clearly? with more easily understood words. My English is not very good, I still have to use translator for sentences that I do not understand. I would appreciate your help.
Thank you

Help me
Serbian_Andro said:
Yes it Solved. You Need to have Stock Firmware of March , and extract PIT File, then flash Firmware with PIT File.
In Options tab check "F. Reset Time", "Auto Reboot", "Nand Erase", "Re-Partition" and "Phone Bootloader Update". Rest options must be UNCHECKED!!!
If anyone need Firmware of March for G935F and the PIT , then let me know.
Click to expand...
Click to collapse
Please, someone help me
Sorry if my english is not good, i'm confused where to go for help.
I also experienced the same problem. I just tried installing android 8.0 (from the same link and way as you explained) and it works. but after I tried several times, a lot of bug that makes me uncomfortable.
So I plan to restore it to the official/original firmware version as before. I've tried using odin and also the same as you experienced, always fail when installing BL. And AP, CP, CSC works well.
Then, what should i do?
Can someone please help explain to me more clearly? with more easily understood words. My English is not very good, I still have to use translator for sentences that I do not understand. I would appreciate your help.
Thank you

How to downgrade from Official Oreo to Nougat
khan0412 said:
Hello, I have recently installed Android 8.0 (Unofficial) on my S7 edge as mentioned in this thread by ProtoDeVNan0. And also installed TWRP recovery as explained here to upgrade it. After installation figured that it has some issues with some features.
So now I am trying to downgrade to the latest official firmware.
But every time I download and install the official firmware zip file using TWRP, it says the zip file is corrupt. So I tried downloading from different sources and still it says it is corrupt in TWRP.
And then I tried using Odin after extracting the Zip file. Using the tar.md5 files inside it. It fails as well.
And also found no way to install the official recovery.
Is there any way I can downgrade from 8.0 to official 7.0? And also I would like to remove TWRP and install official recovery. Basically returning it to its original state.
Searched a lot and found no possible ways to do so.
Please help. Thank you
SOLUTION:
I have found the solution to the issue.
I previously tried using odin to load all the packages in the zip file all together which was the reason i was getting the error.
The solution is to tick and select AP file only in odin and start.
(in case stuck at meta-data unplug)
Then reset odin and re-start the phone into download mode again.
Now tick and select the CSC file (not HOME_CSC), and then start.
After the phone reboots, a factory data reset will occur and phone boots up.
Click to expand...
Click to collapse
after trying for many days got this Solution.
The baseband should be same or higher of the firmware to downgrade.
Example: G935FXXU2DRAG Oreo
G935FXXU1DRAG Nougat ( will not happen.)
Both should be same I mean the U2 in the middle.
Or u can downgrade upgrade from U1 oero to U2 Naugat. But not from U2 to U1 Baseband.
Hope it helps.

Just download last nougat release and flash it using latest odin simply guys,
I have tested, no one needs to use pit file or nand erase etc. Use samfirm to download latest firmware for your model. Then use latest odin to flash. Be sure to use normal csc file, NOT the home csc. You don't need pit file when using normal csc, its included with it.
If you used twrp recovery etc to flash unofficial oreo releases, you need to first confirm if oem unlock is enabled, don't tick on auto reboot option, just tick F.reset from odin options, then first flash latest nougat for your region through odin, then flash twrp through odin. Then when odin says pass, force reboot into twrp recovery from download mode, then format data in twrp and flash super SU/magisk and no verity opt encrypt. Then reboot and you will be good.
Sent from my S7 Edge using XDA Labs

Serbian_Andro said:
Yes it Solved. You Need to have Stock Firmware of March , and extract PIT File, then flash Firmware with PIT File.
In Options tab check "F. Reset Time", "Auto Reboot", "Nand Erase", "Re-Partition" and "Phone Bootloader Update". Rest options must be UNCHECKED!!!
If anyone need Firmware of March for G935F and the PIT , then let me know.
Click to expand...
Click to collapse
I need the link for march firmware please. Thanks a lot

can't downgrade
odin gives "FAIL" when starting the procedure.
i have the U1 nougat version and the U2 oreo version.
can't seem to find U2 nougat ( if any) and I guess upon upgrading to OREO sonething had changed and can't downgrade anymore.
I managed to get into android recovery and did a factory reset and total wipe but nothing, through ODIN flashing doesn't work.
Any ideas anybody ? I really want to downgrade so I will be able to install stock nougat, and flash an oreo custom ROM with magisk in order to get around the KNOX triger thing.
tks
doron

doronwin said:
odin gives "FAIL" when starting the procedure.
i have the U1 nougat version and the U2 oreo version.
can't seem to find U2 nougat ( if any) and I guess upon upgrading to OREO sonething had changed and can't downgrade anymore.
I managed to get into android recovery and did a factory reset and total wipe but nothing, through ODIN flashing doesn't work.
Any ideas anybody ? I really want to downgrade so I will be able to install stock nougat, and flash an oreo custom ROM with magisk in order to get around the KNOX triger thing.
tks
doron
Click to expand...
Click to collapse
You can't flash U1 nougat on U2 oreo firmware. It has been all over xda that U2 firmwares has Version 2 bootloader which can't be downgraded to Version 1 bootloader of U1 firmwares. Nougat has many U2 firmwares, you simply need to search..
Sent from my S7 Edge using XDA Labs

bluetooth start works but need switch off battery optimization
Hello everyone
I found it!!!
Problem with your bluetooh connection after upgrade can be solved in one of the way follow previous post or "disable battery optimization.
I try before swichng off and on all networks, emergency mode etc. and nothing happen.
Disable battery optimization
Sometimes battery optimization also messes up with Bluetooth connections. I suggest you check battery optimization settings and remove Bluetooth from it. To do so, follow the steps:
Open device Settings and go to Battery. There is few ways to go there:
first can be: open settings go to "device maintenance">>>clik on "battery">>>clik on "batterry usage">>>clik on 3 dots right top corner>>>then clik "optimise battery usage">>> and u are there - swich off “Bluetooth MIDI service” and apps that you use with Bluetooth such as Play Music, Phone, youtube, maps etc.
2nd
open settings Tap the 3-dot menu present at the top right corner and select “Battery Optimization”.
Turn off Battery Optimization for “Bluetooth MIDI service” and the apps that you use with Bluetooth such as Play Music, Phone, youtube, maps etc.
therealchris said:
..
Click to expand...
Click to collapse

Serbian_Andro said:
Yes it Solved. You Need to have Stock Firmware of March , and extract PIT File, then flash Firmware with PIT File.
In Options tab check "F. Reset Time", "Auto Reboot", "Nand Erase", "Re-Partition" and "Phone Bootloader Update". Rest options must be UNCHECKED!!!
If anyone need Firmware of March for G935F and the PIT , then let me know.
Click to expand...
Click to collapse
hello...have problem to downgrade from u3 to u2 ...can you help me please ??

Downgrading from U3 Oreo to Naugat
justmemike said:
hello...have problem to downgrade from u3 to u2 ...can you help me please ??
Click to expand...
Click to collapse
Hello. I 've read all the topics and youtube comments about downgrading from oreo.
My oreo is U3,and everyone know that nougat is U2.
So that means we can't downgrade from u3 oreo to nougat u2.
Anyone if knows something,please,pleeeease tell me.
I really need nougat...

nar3k said:
Hello. I 've read all the topics and youtube comments about downgrading from oreo.
My oreo is U3,and everyone know that nougat is U2.
So that means we can't downgrade from u3 oreo to nougat u2.
Anyone if knows something,please,pleeeease tell me.
I really need nougat...
Click to expand...
Click to collapse
I think i've already tried anything to make downgrading possible but no luck,

Serbian_Andro said:
Yes it Solved. You Need to have Stock Firmware of March , and extract PIT File, then flash Firmware with PIT File.
In Options tab check "F. Reset Time", "Auto Reboot", "Nand Erase", "Re-Partition" and "Phone Bootloader Update". Rest options must be UNCHECKED!!!
If anyone need Firmware of March for G935F and the PIT , then let me know.
Click to expand...
Click to collapse
--------------------
My Samsung S7 edge upgraded to Oreo with Binary U3. I would like to downgrade to Nougat. If your PIT file can help me with this then please share with me.

awaism81 said:
--------------------
My Samsung S7 edge upgraded to Oreo with Binary U3. I would like to downgrade to Nougat. If your PIT file can help me with this then please share with me.
Click to expand...
Click to collapse
it ain't possible man, I've already tried that

Related

SM-A310F Downgrade from 6.0.1 to 5.1.1

Hi XDA community, i want try to downgrade in my A310f from Android 6.0.1 to 5.1.1. It's possible? I try to download the 5.1.1 from Sammobile, but when i flash the firmware with odin i get the error "SW Rev Check Fail" in my phone and "md5 error" from odin.. there are some method?
MMBB29K.A310FXXU3BQC2 is my model. Tell me please here
allenbtc said:
MMBB29K.A310FXXU3BQC2 is my model. Tell me please here
Click to expand...
Click to collapse
If your bootloader also is upgraded to A310FXXU3 then it won't be possible to downgrade to 5.1.1 through odin.
Maybe with a modified package without cm.bin, modem.bin, sboot.bin. Otherwise, make it flashable and use twrp.
With Odin you'll only be able to downgrade to the latest 6.0.1 which is also A310FXXU3.
how i can flash with twrp?
---------- Post added at 02:02 PM ---------- Previous post was at 01:57 PM ----------
tys0n said:
If your bootloader also is upgraded to A310FXXU3 then it won't be possible to downgrade to 5.1.1 through odin.
Maybe with a modified package without cm.bin, modem.bin, sboot.bin. Otherwise, make it flashable and use twrp.
With Odin you'll only be able to downgrade to the latest 6.0.1 which is also A310FXXU3.
Click to expand...
Click to collapse
how i can flash with twrp?
tys0n said:
If your bootloader also is upgraded to A310FXXU3 then it won't be possible to downgrade to 5.1.1 through odin.
Maybe with a modified package without cm.bin, modem.bin, sboot.bin. Otherwise, make it flashable and use twrp.
With Odin you'll only be able to downgrade to the latest 6.0.1 which is also A310FXXU3.
Click to expand...
Click to collapse
I can confirm this method is working, I have successfully downgraded an A3 2016 from A310FXXU3BQD2 to A310FXXU2BQA3.
I used the Tar tool from this thread with all the files from the update I wanted to downgrade to, except sboot.bin, cm.bin and modem.bin. It's very important to NOT copy those files to the tool folder because otherwise your phone will be laggy and SIM unusable (if you use the old modem) or you will not be able to flash like with the original tar (if you use old sboot or cm).
So after I ran the batch file, I did a wipe data/factory reset using original recovery and then I flashed the "all files" tar the tool created using Odin in AP (only Auto Reboot and F. reset time checked) and the phone in download mode, and It worked like a charm.
With this method you can likely have any old update flashed while keeping the latest secure bootloader, cm and modem. (Notice that after the downgrade, the phone cannot find any new updates, maybe it's related to the bootloader being the latest or the fact I only downgraded to the previous update...)
dealth645 said:
I can confirm this method is working, I have successfully downgraded an A3 2016 from A310FXXU3BQD2 to A310FXXU2BQA3.
I used the Tar tool from this thread with all the files from the update I wanted to downgrade to, except sboot.bin, cm.bin and modem.bin. It's very important to NOT copy those files to the tool folder because otherwise your phone will be laggy and SIM unusable (if you use the old modem) or you will not be able to flash like with the original tar (if you use old sboot or cm).
So after I ran the batch file, I did a wipe data/factory reset using original recovery and then I flashed the "all files" tar the tool created using Odin in AP (only Auto Reboot and F. reset time checked) and the phone in download mode, and It worked like a charm.
With this method you can likely have any old update flashed while keeping the latest secure bootloader, cm and modem. (Notice that after the downgrade, the phone cannot find any new updates, maybe it's related to the bootloader being the latest or the fact I only downgraded to the previous update...)
Click to expand...
Click to collapse
Thanks for confirming. I've never tried it myself but I figured those bins are the U1/U2/U3 binary files that are protected for downgrade, so it should probably work without them
Now we know how to easily downgrade without errors.
Downgrade
Hello,
With my sm-a310f I downgraded from Nougat to Marchmallow but could not get back to Lollipop.
I used TWRP and Odin.
I saw that there were solutions but they are not universal. Can someone point me?
Thank you
menuisier3 said:
Hello,
With my sm-a310f I downgraded from Nougat to Marchmallow but could not get back to Lollipop.
I used TWRP and Odin.
I saw that there were solutions but they are not universal. Can someone point me?
Thank you
Click to expand...
Click to collapse
https://forum.xda-developers.com/samsung-a-series/general/rom-t3614602
flash combination rom before flash full 4 file stock rom 5.1 , u can downgrade your phone.
Tanle11 said:
flash combination rom before flash full 4 file stock rom 5.1 , u can downgrade your phone.
Click to expand...
Click to collapse
No! You can't downgrade bootloader even if you use a 4 file repair firmware.
As far as I am aware of, this is the only possible way to downgrade to 5.1.1 if you are on new bootloader/modem (tested by me - works fine, I am on the newer bootloader/modem combo) :
https://forum.xda-developers.com/samsung-a-series/general/rom-t3614602
(consider this however ONLY if you are willing to trade 5.1.1 for the warranty as you would need to flash TWRP in the process first)

Help Needed Please

Hi
I have managed to F*** up my Samsung S7 Edge.
I am currently stuck on Samsung Logo , I have twrp 3.1.0.1 installed and can enter bootloader without issue.
I cannot however install stock rom through Odin, it states pit file needed, I have tried several with no results.
In twrp unable to Wipe data as unable to mount storage. Not able to install from zip as pc does not see storage.
I have tried the following stock firmware
G935FXXU1DQC4_G935FOXA1DQB1_BTU
I have tried installing new CSC which i believe has pit file inbedded.
I have tried installing each part separately BL,AP,CSC, etc
Any suggestions would be gratefully received.
Rlumby said:
Hi
I have managed to F*** up my Samsung S7 Edge.
I am currently stuck on Samsung Logo , I have twrp 3.1.0.1 installed and can enter bootloader without issue.
I cannot however install stock rom through Odin, it states pit file needed, I have tried several with no results.
In twrp unable to Wipe data as unable to mount storage. Not able to install from zip as pc does not see storage.
I have tried the following stock firmware
G935FXXU1DQC4_G935FOXA1DQB1_BTU
I have tried installing new CSC which i believe has pit file inbedded.
I have tried installing each part separately BL,AP,CSC, etc
Any suggestions would be gratefully received.
Click to expand...
Click to collapse
Did you uncheck "repartition" in Odin? Do NOT repartition.
dynospectrum said:
Did you uncheck "repartition" in Odin? Do NOT repartition.
Click to expand...
Click to collapse
Hi Yes I did.
Hi All
Update after 18hrs i have managed to rectify the above problem.
I downloaded a Marshmallow firmware and installed CSC file. This flashed the missing pit file and then got stuck on Nand Write Start. I tried installing full firmware but same issue. I then attempted Nougat full firmware which installed!!!!!
That was slightly more stressful than it should of been. Never happened before. Some seriously dodgy looks from the Mrs.

[GUIDE]: Flash Oreo (G955FXXU1CRB7) using new Odin (3.13.1)

New Odin version was leaked!
Odin 3.13.1
This version of Odin allows you to flash newer firmwares with compressed binaries (lz4).
How to flash G955FXXU1CRB7
Download G955FXXU1CRB7 firmware using SamFirm (Model: SM-G955F; Region: DBT; Auto; Check CRC32; Decrypt Automatically; then press "Check Update" and "Download")
Extract downloaded ZIP file
Open Odin and load corresponding package to each slot (BL, AP, CP, CSC)
Put your phone into Download Mode, connect it to the computer using USB cable and press "Start"
There is no need to repack the firmware anymore.
Attached files:
Odin3_v3.13.1.zip
SHA256: 5855ed03a02b03ffcf28ba691236dbffc2e429841f952e904048378dd1bec265
MD5: e52ec5982122f73449f63e8e2b2c9cda
Credits:
Thanks to @bazylek78 for sharing a link to 4pda.ru forum
i was on att firmware,now i am on 2AQL1 csc:XAA,bloatware free,if i flash this i remain bloatware free?
fredo9509 said:
i was on att firmware,now i am on 2AQL1 csc:XAA,bloatware free,if i flash this i remain bloatware free?
Click to expand...
Click to collapse
This firmware is for Exynos S8+ (SM-G955F)
is it modified or samsung updated?
kernel.killer said:
New Odin version was leaked!
Odin 3.13.1
This version of Odin allows you to flash newer firmwares with compressed binaries (lz4).
How to flash G955FXXU1CRB7
Download G955FXXU1CRB7 firmware using SamFirm (Model: SM-G955F; Region: DBT; Auto; Check CRC32; Decrypt Automatically; then press "Check Update" and "Download")
Extract downloaded ZIP file
Open Odin and load corresponding package to each slot (BL, AP, CP, CSC)
Put your phone into Download Mode, connect it to the computer using USB cable and press "Start"
There is no need to repack the firmware anymore.
Attached files:
Odin3_v3.13.1.zip
SHA256: 5855ed03a02b03ffcf28ba691236dbffc2e429841f952e904048378dd1bec265
MD5: e52ec5982122f73449f63e8e2b2c9cda
Credits:
Thanks to @bazylek78 for sharing a link to 4pda.ru forum
Click to expand...
Click to collapse
Do you know if this new version of ODIN will read the OLD Firmware files as well as the new ones with the new compression? I know the OP says it will read the new files - but I didn't know if we needed to have two different versions of ODIN if we had phones running older firmware and other phones on new Oreo firmware. ??
Geekser said:
Do you know if this new version of ODIN will read the OLD Firmware files as well as the new ones with the new compression? I know the OP says it will read the new files - but I didn't know if we needed to have two different versions of ODIN if we had phones running older firmware and other phones on new Oreo firmware. ??
Click to expand...
Click to collapse
Yes, you can use this Odin to flash older firmwares, too. This update just adds support for flashing compressed binaries.
valiii 007 said:
is it modified or samsung updated?
Click to expand...
Click to collapse
This is Odin by Samsung, without any modifications.
I'm on Nougat AQL5 with my Exynos SM-G955FD. Will this tutorial work? Will it wipe my data and apps?
kernel.killer said:
Yes, you can use this Odin to flash older firmwares, too. This update just adds support for flashing compressed binaries.
Click to expand...
Click to collapse
thanks!
Im here now in Saudi arabia, can i flash Android OREO from Germany via Odin? there will be no problem in SIM NETWORK or it will be a problem?
Sent from my SM-G955F using xda premium
do i need to be on the latest version of nougat or can i flash this right away
Hello,
After doing the update for Android Oreo 8, through Odin, my Google Pay (Old Android Pay) no longer works. Is this expected? What can be done? Thank you!
KilimIG said:
do i need to be on the latest version of nougat or can i flash this right away
Click to expand...
Click to collapse
No, you can flash this over any nougat FW.
Will this reset my device when i flash it or it will keep data, photos and apps?
will it work with sm g950F
I flashed Oreo CRB7 final build from Germany and everything is great. But notifications for viber doesnt work as supposed. When i snooze them for only 15 minutes they never appear again and even after 2 hours when i open viber app i have new messages for which i didnt get notification neither sound and stays like that. But when i restart phone everything becomes normal untill i snooze some notification again. I did clean install, clear cash twice and factory reset the phone before Oreo.
Followed the instructions from this site step by step (it was flashing with extracting .lz4 extensions). Help?
BalkanPeninsula said:
will it work with sm g950F
I flashed Oreo CRB7 final build from Germany and everything is great. But notifications for viber doesnt work as supposed. When i snooze them for only 15 minutes they never appear again and even after 2 hours when i open viber app i have new messages for which i didnt get notification neither sound and stays like that. But when i restart phone everything becomes normal untill i snooze some notification again. I did clean install, clear cash twice and factory reset the phone before Oreo.
Followed the instructions from this site step by step (it was flashing with extracting .lz4 extensions). Help?
Click to expand...
Click to collapse
That sound like a viber issue not oreo or Odin.
Send a ticket to viber.
rhewins2268 said:
That sound like a viber issue not oreo or Odin.
Send a ticket to viber.
Click to expand...
Click to collapse
Maybe ill try to clean flash it with new odin i have all backups on cloud. Also i get few wifi disconnections from time to time, on my other devices is working great.
For the snooze option-should i have UNDO button in the notification bar when i snooze some apps? Because i have none and i saw it is part of oreo snooze options.
@kernel.killer; hey man, I'm on 8.0 CRAP with custom kernel and other staff I don´t want to lose. If I flashed CRB7 with CSC_Home, will I keep TWRP, root and my custom kernel with my data? or just will I keep my data? Thanks.
josegon30 said:
@kernel.killer; hey man, I'm on 8.0 CRAP with custom kernel and other staff I don´t want to lose. If I flashed CRB7 with CSC_Home, will I keep TWRP, root and my custom kernel with my data? or just will I keep my data? Thanks.
Click to expand...
Click to collapse
Only keep your data.
im getting secure check fail (bootloader) trying to flash the Spanish firmware ..
currently on uk (3) version 7
any advice

S8 SM-G950F Stock firmware help!

Hi,
I cant seem to find anything related directly to the S8 and not sure if all mobiles are the same..
I had Android 8 on my S8 and needed to downgrade to 7 to try something, I did that but after it completed I had a messy settings menu where parts were duplicated or showing the wrong sub-heading.
I've read on the forums about this and it says re-flash with CSC and AP to fix.
When I try to re-flash it gets stuck on "Set Partition" in Odin.
I read to fix this you need to enable the "re-partition" option in Odin, I have tried this and it still does not work.
I have also tried full flash or AP, CSC, BL and CP and it's still getting stuck.
Tried on two different PC's (just in case) - same result on both.
The phone still boots and works, but it feels like something is wrong.
Can someone advise on how to completely re-flash the phone? The videos I've watched so far don't seem to run into this issue.
Any help would be awesome
Update: Using odin 3.13 gives this error: <ID:0/005> Can't open the specified file. (Line: 1892)
I've tried it with SamFirm and Sammobile FW.
EDIT - Finally fixed it, flashed G950FXXU1AQDG to the handset, wiping and re-partitioning the phone, after setup an OTA update was pushed for 8.0.
In case anyone else has the same issue, I used Sammobile for the FW and Odin 3.12 to flash.

[Q] Cant flash Stock rom anymore

Hello everybody,
I got a Samsung Galaxy S7 Edge (SM-G935F) DBT version and flashed a Custom ROM (Firmware? idk the difference).
I did that like this: youtube.com/watch?v=_1ofpLHMVvA
Unfortunately there were a few problems there, like the camera is awful now (Bad quality and other camera apps didnt made it better).
So now I want back my Stock ROM. (Yes, Unfortunately I didnt made a Backup)
But I cant get it back, neither with TWRP or with Odin.
At Odin its stops at system.img and fails than and at TWRP I guess I used the wrong Rom because is said Zip file is corrupt!.
The following Stock ROM did I use for Odin and TWRP: updato.com/firmware-archive-select-model?record=2A12F0CE03CD11E7963AFA163EE8F90B
At Odin I unziped it and added it the right way: (BL, AL, CP and CSC).
At TWRP I didnt unziped it and used it like it is.
I hope you can help me there.
I have already made the following:
Changed USB Port
Changed USB cabel
Used Smart Switch
And yes, I can still install custom roms like LineageOS and Resurrection easily via TWRP.
Greetings, Darkatzu.
bump
Darkatzu said:
bump
Click to expand...
Click to collapse
Which procedure you followed to root and install custom rom?
Sent from my S7 Edge using XDA Labs
shah22 said:
Which procedure you followed to root and install custom rom?
Sent from my S7 Edge using XDA Labs
Click to expand...
Click to collapse
Is that important? I dont think so...
Darkatzu said:
Is that important? I dont think so...
Click to expand...
Click to collapse
It is, because you will need no verity opt encrypt to flash too alongside official stock rom in order to use stock rom if you rooted by system modification method, with oreo 8.0 I think no verity zip is not working, so you need to flash latest nougat for your country/region alongside twrp , no verity zip and super su, you can download latest stock firmware for your region from samfirm application or updato, also download odin version 3.13.1, latest twrp recovery, super su and no verity opt encrypt from here on xda forums, first check and enable oem unlock, flash stock rom and then flash twrp through odin, then boot in twrp recovery and flash no verity and super su zips, to get detailed info on above steps search the forums. AND PLEASE TELL WHATS ASKED IF YOU WANT TO GET HELPED.
!! NOTE : IF YOU ROOTED FIRST TIME BY SYSTEM MODIFICATION METHOD, AND THEN INSTALLED CUSTOM ROM, THEN FLASHING STOCK ROM BACK WILL PUT YOU ON A DM VERITY ERROR. ALWAYS REMEMBER TO ENABLE OEM UNLOCK IN DEVELOPER OPTIONS BEFORE DOING ANYTHING!
HAVING OEM UNLOCK DISABLED AND THEN ROOTING VIA SYSTEM MODIFICATION METHOD, AND THEN FLASHING STOCK ROM WILL PUT YOU IN A HARD BRICK SITUATION WITH BOTH DM VERITY ERROR AND CUSTOM BINARY BLOCKED ERROR !!
As far as I know the above situation has no solution if you get into this mess and only a memory swap on board or some box can fix this. I know many users here on xda are stuck on this situation. Some users said they fixed this by using nand erase all and re partition using pit file options during flashing in odin, but I really doubt enabling these options will solve this if not making problems worse. Anyone is welcomed to correct me if the above situation has any solution. BUT THAT IS WHY SYSTEMLESS ROOT IS THERE TO AVOID ALL THIS...
Sent from my S7 Edge using XDA Labs
shah22 said:
It is, because you will need no verity opt encrypt to flash too alongside official stock rom in order to use stock rom if you rooted by system modification method, with oreo 8.0 I think no verity zip is not working, so you need to flash latest nougat for your country/region alongside twrp , no verity zip and super su, you can download latest stock firmware for your region from samfirm application or updato, also download odin version 3.13.1, latest twrp recovery, super su and no verity opt encrypt from here on xda forums, first check and enable oem unlock, flash stock rom and then flash twrp through odin, then boot in twrp recovery and flash no verity and super su zips, to get detailed info on above steps search the forums. AND PLEASE TELL WHATS ASKED IF YOU WANT TO GET HELPED.
!! NOTE : IF YOU ROOTED FIRST TIME BY SYSTEM MODIFICATION METHOD, AND THEN INSTALLED CUSTOM ROM, THEN FLASHING STOCK ROM BACK WILL PUT YOU ON A DM VERITY ERROR. ALWAYS REMEMBER TO ENABLE OEM UNLOCK IN DEVELOPER OPTIONS BEFORE DOING ANYTHING!
HAVING OEM UNLOCK DISABLED AND THEN ROOTING VIA SYSTEM MODIFICATION METHOD, AND THEN FLASHING STOCK ROM WILL PUT YOU IN A HARD BRICK SITUATION WITH BOTH DM VERITY ERROR AND CUSTOM BINARY BLOCKED ERROR !!
As far as I know the above situation has no solution if you get into this mess and only a memory swap on board or some box can fix this. I know many users here on xda are stuck on this situation. Some users said they fixed this by using nand erase all and re partition using pit file options during flashing in odin, but I really doubt enabling these options will solve this if not making problems worse. Anyone is welcomed to correct me if the above situation has any solution. BUT THAT IS WHY SYSTEMLESS ROOT IS THERE TO AVOID ALL THIS...
Sent from my S7 Edge using XDA Labs
Click to expand...
Click to collapse
I showed a Video Tutorial how I did that.
The reason why I did that, is for me: Not important.
And yes, I did OEM unlock.
shah22 said:
so you need to flash latest nougat for your country/region alongside twrp
Click to expand...
Click to collapse
So far so good.
shah22 said:
you can download latest stock firmware for your region from samfirm application or updato
Click to expand...
Click to collapse
As I did. (both)
shah22 said:
also download odin version 3.13.1, latest twrp recovery
Click to expand...
Click to collapse
Already done.
shah22 said:
super su and no verity opt encrypt from here on xda forums
Click to expand...
Click to collapse
Ok I didnt done that, but now I got I did.
shah22 said:
first check and enable oem unlock
Click to expand...
Click to collapse
Done.
shah22 said:
flash stock rom
Click to expand...
Click to collapse
Aaaand failed as I described already.
Darkatzu said:
I showed a Video Tutorial how I did that.
The reason why I did that, is for me: Not important.
And yes, I did OEM unlock.
So far so good.
As I did. (both)
Already done.
Ok I didnt done that, but now I got I did.
Done.
Aaaand failed as I described already.
Click to expand...
Click to collapse
Maybe you are using an older bootloader ? Can't say for sure whats causing it, the method you used above I think required system modifications, but you are using a march 2017 stock rom, so it looks updato don't has V2 bootloader firmwares for DBT, problems may happen when flashing an older bootloader on a newer one, it could also be your pc or other hardware problem, but in case try again and download samfirm from here : https://forum.xda-developers.com/attachment.php?attachmentid=3803841
Enter DBT as your region and model SM-G935F , it will download the latest stock available, be sure option for auto decrypt, check crc32 and binary nature are ticked.
After that check oem unlock and usb debugging is enabled and follow the steps :
1. Put phone in download mode, use original usb cable, and make sure pc usb port is working correctly. Also phone must be charged above 50%.
2. Download odin 3.13.1 from here https://forum.xda-developers.com/attachment.php?attachmentid=4431597&d=1519662712
Latest twrp available https://eu.dl.twrp.me/hero2lte/twrp-3.2.1-1-hero2lte.img.tar.html
Latest no verity opt encrypt https://build.nethunter.com/android-tools/no-verity-opt-encrypt/no-verity-opt-encrypt-6.0.zip
Latest stable super su https://s3-us-west-2.amazonaws.com/supersu/download/zip/SuperSU-v2.82-201705271822.zip
3. Put phone in download mode, extract the firmware downloaded above from samfirm tool and put the respective files in their boxes, use CSC and NOT HOME_CSC. Make sure no option other than F.reset time is ticked in odin options. Begin the flash procedure. After it is completed, don't reboot and place twrp zip downloaded from above in the AP tab of odin. After it is completed, stay in download mode and hold power+home+vol down to reboot from download mode and immediately switch to vol up button to boot in twrp recovery menu.
4. In twrp recovery menu, you need to swipe for system modifications or tick read only ( if you previously allowed for system modifications then you can do it again it doesn't matter, but if you previously didn't swipe for system modifications then tick read only and download systemless zip from https://forum.xda-developers.com/s7-edge/development/samsung-systemless-devbase-encryption-t3517178 )
I will recommend this as you won't need to flash dm verity.
5. Now, go to wipe> format data in twrp recovery, after its done, flash super su and system less zip through twrp to get system less root if you don't want to get dm verity error hassle when flashing stock roms OR flash super su and no verity opt encrypt if you already have allowed system modifications. After that reboot. It may take sometime.
Also to note if you never allowed system modifications before in twrp, and you don't want to root either, then you can safely flash stock without flashing twrp or going through further steps.
This is what I could best explain according to my limited knowledge, if you still fail to flash stock in odin, then I am not sure it may be your pc or other hardware problem and you may need a repair box, try checking on another pc or some expert user to help. Good Luck.
These steps are only for installing stock rom back on previously rooted S7 edge devices using custom roms and for rooting a stock rom.. and only applies to SM-G935F
Sent from my S7 Edge using XDA Labs
shah22 said:
Maybe you are using an older bootloader ? Can't say for sure whats causing it, the method you used above I think required system modifications, but you are using a march 2017 stock rom, so it looks updato don't has V2 bootloader firmwares for DBT, problems may happen when flashing an older bootloader on a newer one, it could also be your pc or other hardware problem, but in case try again and download samfirm from here : https://forum.xda-developers.com/attachment.php?attachmentid=3803841
Enter DBT as your region and model SM-G935F , it will download the latest stock available, be sure option for auto decrypt, check crc32 and binary nature are ticked.
After that check oem unlock and usb debugging is enabled and follow the steps :
1. Put phone in download mode, use original usb cable, and make sure pc usb port is working correctly. Also phone must be charged above 50%.
2. Download odin 3.13.1 from here https://forum.xda-developers.com/attachment.php?attachmentid=4431597&d=1519662712
Latest twrp available https://eu.dl.twrp.me/hero2lte/twrp-3.2.1-1-hero2lte.img.tar.html
Latest no verity opt encrypt https://build.nethunter.com/android-tools/no-verity-opt-encrypt/no-verity-opt-encrypt-6.0.zip
Latest stable super su https://s3-us-west-2.amazonaws.com/supersu/download/zip/SuperSU-v2.82-201705271822.zip
3. Put phone in download mode, extract the firmware downloaded above from samfirm tool and put the respective files in their boxes, use CSC and NOT HOME_CSC. Make sure no option other than F.reset time is ticked in odin options. Begin the flash procedure. After it is completed, don't reboot and place twrp zip downloaded from above in the AP tab of odin. After it is completed, stay in download mode and hold power+home+vol down to reboot from download mode and immediately switch to vol up button to boot in twrp recovery menu.
4. In twrp recovery menu, you need to swipe for system modifications or tick read only ( if you previously allowed for system modifications then you can do it again it doesn't matter, but if you previously didn't swipe for system modifications then tick read only and download systemless zip from https://forum.xda-developers.com/s7-edge/development/samsung-systemless-devbase-encryption-t3517178 )
I will recommend this as you won't need to flash dm verity.
5. Now, go to wipe> format data in twrp recovery, after its done, flash super su and system less zip through twrp to get system less root if you don't want to get dm verity error hassle when flashing stock roms OR flash super su and no verity opt encrypt if you already have allowed system modifications. After that reboot. It may take sometime.
Also to note if you never allowed system modifications before in twrp, and you don't want to root either, then you can safely flash stock without flashing twrp or going through further steps.
This is what I could best explain according to my limited knowledge, if you still fail to flash stock in odin, then I am not sure it may be your pc or other hardware problem and you may need a repair box, try checking on another pc or some expert user to help. Good Luck.
These steps are only for installing stock rom back on previously rooted S7 edge devices using custom roms and for rooting a stock rom.. and only applies to SM-G935F
Sent from my S7 Edge using XDA Labs
Click to expand...
Click to collapse
As I already said: As I did. (both)
I already tried with samfire.
Same error.
Sorry I couldn't be much help. Does it always stucks in odin at system.img? Looks like its a hardware problem in your pc/usb ports or phone's usb jack. Try getting your phone checked by a repairer, flashing from another pc or changing usb cable. Also try running odin as an admin or try with an older odin version. Good Luck
Sent from my S7 Edge using XDA Labs
shah22 said:
Sorry I couldn't be much help. Does it always stucks in odin at system.img? Looks like its a hardware problem in your pc/usb ports or phone's usb jack. Try getting your phone checked by a repairer, flashing from another pc or changing usb cable. Also try running odin as an admin or try with an older odin version. Good Luck
Sent from my S7 Edge using XDA Labs
Click to expand...
Click to collapse
Yes it suck always at system.img!
And I can easily flash custom roms via. TWRP.
And I can flash TWRP via Odin without any errors.
Do u even read my post?
Changed USB cabel
Click to expand...
Click to collapse
And yes, I changed PC 2 and yes tryed other versions of Odin LIKE where AP is named as PDA.
Strange thing if you could flash recovery but not the stock rom, looks like you need to get it checked by a tech. But as a last resort did you tried using pit file and repartition ticked? To get the pit file extract the CSC file and you will find .pit file there, open pit tab in latest odin and select that pit file, then tick repartition box and proceed to flash with all other files selected in their respective boxes. If its still the same then I guess I can be of no more help. Cheers !
!! Warning : Using pit file is never recommended and it could brick your phone permanently if there is any power outage/usb disconnection during flashing with pit, it is used to correct file system partitions if they are changed/corrupted. Its better to outweigh benefits with potential danger. Also a pit file will erase all partitions first, then write flash data from beginning and if you again stuck at system.img when using pit file, you will be left with a permanent brick. So I will recommend to get it checked by a tech if you want stock rom that bad and don't do any risky thing with your pricey phone
Sent from my S7 Edge using XDA Labs
shah22 said:
Strange thing if you could flash recovery but not the stock rom, looks like you need to get it checked by a tech. But as a last resort did you tried using pit file and repartition ticked? To get the pit file extract the CSC file and you will find .pit file there, open pit tab in latest odin and select that pit file, then tick repartition box and proceed to flash with all other files selected in their respective boxes. If its still the same then I guess I can be of no more help. Cheers !
!! Warning : Using pit file is never recommended and it could brick your phone permanently if there is any power outage/usb disconnection during flashing with pit, it is used to correct file system partitions if they are changed/corrupted. Its better to outweigh benefits with potential danger. Also a pit file will erase all partitions first, then write flash data from beginning and if you again stuck at system.img when using pit file, you will be left with a permanent brick. So I will recommend to get it checked by a tech if you want stock rom that bad and don't do any risky thing with your pricey phone
Sent from my S7 Edge using XDA Labs
Click to expand...
Click to collapse
A tech is 2 expensive for me.
And yes, I already did it with pit file and the whole CSC file.
#push
#push
#push
#push
Darkatzu said:
#push
Click to expand...
Click to collapse
try with chimeratool, it worked for me, l use a free license to download the firm from server and install it
#push
shah22 said:
It is, because you will need no verity opt encrypt to flash too alongside official stock rom in order to use stock rom if you rooted by system modification method, with oreo 8.0 I think no verity zip is not working, so you need to flash latest nougat for your country/region alongside twrp , no verity zip and super su, you can download latest stock firmware for your region from samfirm application or updato, also download odin version 3.13.1, latest twrp recovery, super su and no verity opt encrypt from here on xda forums, first check and enable oem unlock, flash stock rom and then flash twrp through odin, then boot in twrp recovery and flash no verity and super su zips, to get detailed info on above steps search the forums. AND PLEASE TELL WHATS ASKED IF YOU WANT TO GET HELPED.
!! NOTE : IF YOU ROOTED FIRST TIME BY SYSTEM MODIFICATION METHOD, AND THEN INSTALLED CUSTOM ROM, THEN FLASHING STOCK ROM BACK WILL PUT YOU ON A DM VERITY ERROR. ALWAYS REMEMBER TO ENABLE OEM UNLOCK IN DEVELOPER OPTIONS BEFORE DOING ANYTHING!
HAVING OEM UNLOCK DISABLED AND THEN ROOTING VIA SYSTEM MODIFICATION METHOD, AND THEN FLASHING STOCK ROM WILL PUT YOU IN A HARD BRICK SITUATION WITH BOTH DM VERITY ERROR AND CUSTOM BINARY BLOCKED ERROR !!
As far as I know the above situation has no solution if you get into this mess and only a memory swap on board or some box can fix this. I know many users here on xda are stuck on this situation. Some users said they fixed this by using nand erase all and re partition using pit file options during flashing in odin, but I really doubt enabling these options will solve this if not making problems worse. Anyone is welcomed to correct me if the above situation has any solution. BUT THAT IS WHY SYSTEMLESS ROOT IS THERE TO AVOID ALL THIS...
Sent from my S7 Edge using XDA Labs
Click to expand...
Click to collapse
hi, i used this thread to root my regular s7 from sprint, am i going to be able to just flash the latest firmware back to stock and be good to go or am i hosed?
thanks
hikouka71 said:
hi, i used this thread to root my regular s7 from sprint, am i going to be able to just flash the latest firmware back to stock and be good to go or am i hosed?
thanks
Click to expand...
Click to collapse
No, i don't think so as you already flashed engineering kernel, i won't recommend but if you already tried, do post your results ..
Sent from my S7 Edge using XDA Labs

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