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
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.
Updated my RiCE to 11.1 from 10.1, managed to get everything done however noticed my wifi calling had gone.
I ended up flashing a CSC file for H3G UK i downloaded from her, which has now got me stuck in the samsung bootloop, the CSC I should have used I didn't.
Tried to flash BL, using the spam start method then flashing TWRP via AP, but still cannot get into TWRP.
Anyone know if I have any other options?
I can not get out of the bootloop, all I can access is download mode.
Thanks
Daf123 said:
Updated my RiCE to 11.1 from 10.1, managed to get everything done however noticed my wifi calling had gone.
I ended up flashing a CSC file for H3G UK i downloaded from her, which has now got me stuck in the samsung bootloop, the CSC I should have used I didn't.
Tried to flash BL, using the spam start method then flashing TWRP via AP, but still cannot get into TWRP.
Anyone know if I have any other options?
I can not get out of the bootloop, all I can access is download mode.
Thanks
Click to expand...
Click to collapse
its better to write your post on their thread.
https://forum.xda-developers.com/ga...ovate-ice-g950-g955-android-7-0-aqdg-t3598040
Hello, I purchase a SM-G935F from a pawnshop today that was flashed with a custom ROM however it does not boot. The phone goes into download mode just fine and want to flash stock firmware but cannot find the USA version. The box came the phone and appears to be a USA version, the UPC code on the box is 8806088275123 and I check the IMEI on a website service and it came back with this model number SM-G935FZKLTTT and says it was sold in the USA. Any help from members would be greatly appreciated, thank you in advance for your help.
Mark
You can flash any region firmware on the SM-G930F phone, try this one:
https://www.sammobile.com/firmwares/galaxy-s7-edge/SM-G935F/BTU/
How to install Samsung Firmware: http://updato.com/how-to/how-to-install-an-official-samsung-stock-firmware-using-odin
benjamen50 said:
You can flash any region firmware on the SM-G930F phone, try this one:
https://www.sammobile.com/firmwares/galaxy-s7-edge/SM-G935F/BTU/
How to install Samsung Firmware: http://updato.com/how-to/how-to-install-an-official-samsung-stock-firmware-using-odin
Click to expand...
Click to collapse
Thank you my friend, trying now.
I forgot to tell you that factory reset is required when switching from custom rom to stock rom so make sure you flash the non home CSC file and not the home_csc file.
benjamen50 said:
I forgot to tell you that factory reset is required when switching from custom rom to stock rom so make sure you flash the non home CSC file and not the home_csc file.
Click to expand...
Click to collapse
Thank you for your time but not sure I understand what a home and non home CSC file is? it is in the download?
markh61133 said:
Thank you for your time but not sure I understand what a home and non home CSC file is? it is in the download?
Click to expand...
Click to collapse
Yes, it is in the download. When you download Samsung firmware from Sammobile or Updato website they come in a zipped file. You'll need to extract the zipped folder which will give you multiple files labelled AP, BL, CP, CSC and lastly HOME_CSC.
This is an example of what the files look like when the files are extracted from the downloaded firmware zip file:
http://prntscr.com/k07am0
The non_home csc file is used to tell the phone to wipe the user data on the phone when flashed, the home CSC is used if you don't want to wipe the user data on the phone when flashing firmware.
markh61133 said:
Thank you for your time but not sure I understand what a home and non home CSC file is? it is in the download?
Click to expand...
Click to collapse
Right now the phone will not boot, it shows the title of the phone but then just loops back to a black screen.
benjamen50 said:
Yes, it is in the download. When you download Samsung firmware from Sammobile or Updato website they come in a zipped file. You'll need to extract the zipped folder which will give you multiple files labelled AP, BL, CP, CSC and lastly HOME_CSC.
This is an example of what the files look like when the files are extracted from the downloaded firmware zip file:
http://prntscr.com/k07am0
The non_home csc file is used to tell the phone to wipe the user data on the phone when flashed, the home CSC is used if you don't want to wipe the user data on the phone when flashing firmware.
Click to expand...
Click to collapse
Got it, thank you so much for all your help, I really appreciate it.
benjamen50 said:
Yes, it is in the download. When you download Samsung firmware from Sammobile or Updato website they come in a zipped file. You'll need to extract the zipped folder which will give you multiple files labelled AP, BL, CP, CSC and lastly HOME_CSC.
This is an example of what the files look like when the files are extracted from the downloaded firmware zip file:
http://prntscr.com/k07am0
The non_home csc file is used to tell the phone to wipe the user data on the phone when flashed, the home CSC is used if you don't want to wipe the user data on the phone when flashing firmware.
Click to expand...
Click to collapse
Hello again Benjamen50, it failed on the first try, do I need to check re-partition? or Nand Erase? What about a Pit file? sorry to keep bothering you but I appreciate your help.
Mark
If you are flashing Oreo firmware which is 8.0 you need to use Odin 3.13 or newer as the older Odin software does not support flashing Oreo firmware.
The only buttons you need to click are BL, AP, CP, CSC then start and nothing else.
The default check boxes under options tab will be auto reboot and f reset time. Others should be left untouched and not checked.
You'll need to reboot download mode again which can be done by holding the download mode keys until you get that blue screen again or that it says that something ran into a problem with the blue screen which allows flashing as well.
benjamen50 said:
If you are flashing Oreo firmware which is 8.0 you need to use Odin 3.13 or newer as the older Odin software does not support flashing Oreo firmware.
The only buttons you need to click are BL, AP, CP, CSC then start and nothing else.
The default check boxes under options tab will be auto reboot and f reset time. Others should be left untouched and not checked.
You'll need to reboot download mode again which can be done by holding the download mode keys until you get that blue screen again or that it says that something ran into a problem with the blue screen which allows flashing as well.
Click to expand...
Click to collapse
Thank you my friend, you are the best. I flashed a older version and it worked perfect. I cant thank you enough for all your help and patience!
benjamen50 said:
If you are flashing Oreo firmware which is 8.0 you need to use Odin 3.13 or newer as the older Odin software does not support flashing Oreo firmware.
The only buttons you need to click are BL, AP, CP, CSC then start and nothing else.
The default check boxes under options tab will be auto reboot and f reset time. Others should be left untouched and not checked.
You'll need to reboot download mode again which can be done by holding the download mode keys until you get that blue screen again or that it says that something ran into a problem with the blue screen which allows flashing as well.
Click to expand...
Click to collapse
Hello again, well I thought it worked because I got a PASS in Odin however, when the phone boots, I get a Black screen saying Samsung Galaxy S7 Edge then it goes to a blue screen with the android logo and it says erasing at the bottom for a few seconds then the screen goes black. The phone still goes into download mode however, it will not go into recover mode. Before flashing this I could get into recovery mode but would see a custom page with loading and rebooting options. Am I missing the stock boot loader? So sorry to keep bothering you about this.
Mark
try using octoplus samsung tool if you dont know how look it up on youtube first best of luck to you