Hello guys,
I'm a bit confused now from reading through different posts, each describing different methods.
Why can't we just Flash the IMG of Oreo like we would do with Stock Nougat?
Is this because it's still soak and hasn't really been released yet or am I missing something?
Also, where's the difference to just flash Stock Nougat and update to Oreo via the System Update button in the settings (that's called OTA, right?)?
Also I read "Flashing bootloader of equal or minor version will hardbrick your device"
Does that mean if I Flash that 2 times I Flash the same bl Version and I hardbrick my device?
I'm from Germany btw.
NPPS25.137.7 2.4 (I read, I have to be on 137.93.2.5 but I can just either flash it directly or flash an earlier stock and update until I'm there I guess?)
XT1676
Boot loader: B8.23
Note: I thought it would be better to post that in q&a instead of the reply section of the stock Oreo fastboot update post, since this are kind of general questions to the Oreo update topic.
Greetings,
7080
Flashing an oero stock rom firmware image is exactly the same as flashing a nougat stock rom firmware image (although there's a few more img_sparsechunks to flash)
You won't brick your phone if the firmware you are flashing the the same or newer
You will brick your phone if you try and flash a gpt & bootloader that is lower than the version currently on your phone
You can downgrade by flashing everything except these parts
There's no difference to flashing an ota via stock recovery to doing it via system update - however you must be on a fully unmodified stock rom else it will fail and potentially brick your phone
Don't confuse flashing an ota with flashing a complete stock rom firmware image
And ota must meet certain requirements - eg must be on a certain stock firmware version
A stock firmware image (complete stock firmware) can be flashed on any device (to which the image is for) that has the same or older bootloader version
TheFixItMan said:
Don't confuse flashing an ota with flashing a complete stock rom firmware image
And ota must meet certain requirements - eg must be on a certain stock firmware version
A stock firmware image (complete stock firmware) can be flashed on any device (to which the image is for) that has the same or older bootloader version
Click to expand...
Click to collapse
Thank you!
It took me some time to find out that OTA's only apply from one specific version to an other (the post from "tfwboredom" with all OTA's he was able to catch was a big help) and when i didnt get any OTA's (after flashing stock Nougat) i did an OTA update via adb. After that, my phone offered me OTA's again and i could upgrade until Oreo --.13 i guess. I rediscovered a thread with the full fastboot stock Oreo firmware --.16 then (forgot i already had downloaded it with my phone to my sd ^^) and flashed this then with the computer.
My Problem right now is the thing with the auto encryption.
Im on OPP28.85-16 now with TWRP64bit installed and was also able to get root by flashing newest Magisk (18.0) and the f2fs-loopback-bug-workaround (I dont really know for what that is) and installing MagiskManager v6.1 after booting system.
However, when i return to twrp after booting into system it asks me for a password to disable encryption and also wont flash things properly until i format data or do a factory reset. But after booting into system this encryption will be applied again. Flashing no-verity-encrypt didnt solve the problem.
What i want to find out now is:
1. Why is it automatically encrypting again and how can i disable that?
2. When i disabled that, can i encrypt my phone in the settings and use that password then to unlock twrp?
3. Where is the difference between this auto encryption and when i click in system settings on encrypt phone?
As far as i understood, in Nougat no-verity-encrypt was to prevent the dm-verity...thing to encrypt your phone but i could still enable encryption in the system settings.
(4. what is the purpose of f2fs bug fix?) - and has it enything to do with encryption?
G5-User7080 said:
Thank you!
It took me some time to find out that OTA's only apply from one specific version to an other (the post from "tfwboredom" with all OTA's he was able to catch was a big help) and when i didnt get any OTA's (after flashing stock Nougat) i did an OTA update via adb. After that, my phone offered me OTA's again and i could upgrade until Oreo --.13 i guess. I rediscovered a thread with the full fastboot stock Oreo firmware --.16 then (forgot i already had downloaded it with my phone to my sd ^^) and flashed this then with the computer.
My Problem right now is the thing with the auto encryption.
Im on OPP28.85-16 now with TWRP64bit installed and was also able to get root by flashing newest Magisk (18.0) and the f2fs-loopback-bug-workaround (I dont really know for what that is) and installing MagiskManager v6.1 after booting system.
However, when i return to twrp after booting into system it asks me for a password to disable encryption and also wont flash things properly until i format data or do a factory reset. But after booting into system this encryption will be applied again. Flashing no-verity-encrypt didnt solve the problem.
What i want to find out now is:
1. Why is it automatically encrypting again and how can i disable that?
2. When i disabled that, can i encrypt my phone in the settings and use that password then to unlock twrp?
3. Where is the difference between this auto encryption and when i click in system settings on encrypt phone?
As far as i understood, in Nougat no-verity-encrypt was to prevent the dm-verity...thing to encrypt your phone but i could still enable encryption in the system settings.
(4. what is the purpose of f2fs bug fix?) - and has it enything to do with encryption?
Click to expand...
Click to collapse
You need to format data to remove encryption
Wipe - option on the right
If you encrypt again once booted you need to use a twrp that supports encryption - the 64bit version posted in most rom threads don't support encryption but I did post the source code to my test version which someone compiled which may have encryption support
You can try it
https://drive.google.com/file/d/1kgFyYfjEyqAEXOGjg_UfeedlQwaLVF1F/view
All you should need to do is flash magisk - try version 17
You probably will need to change the device fingerprint to pass CtsProfile
Use this module
https://forum.xda-developers.com/apps/magisk/module-magiskhide-props-config-t3789228
TheFixItMan said:
You need to format data to remove encryption
Wipe - option on the right
Click to expand...
Click to collapse
- Yes, i did that, but when i boot system after it and return to twrp its again encrypted, but ill try a clean stock oreo flash -> twrp -> format data -> reboot -> return to twrp
If you encrypt again once booted you need to use a twrp that supports encryption - the 64bit version posted in most rom threads don't support encryption but I did post the source code to my test version which someone compiled which may have encryption support
You can try it
https://drive.google.com/file/d/1kgFyYfjEyqAEXOGjg_UfeedlQwaLVF1F/view
Click to expand...
Click to collapse
- Oh ok, i switched to 64bit version because of efs backup when still on Nougat, but i read somewhere that the 32bit version has that now, too, so could i also go just back to 32bit twrp?
As far as i remember, i never had a Problem with encryption on Nougat with 64bit.
- What does that mean that twrp supports encryption, when data gets encrypted every time, how should twrp be able to read that then?
All you should need to do is flash magisk - try version 17
Click to expand...
Click to collapse
- why 17 and not 18? i mean 18 worked when i tried it?
You probably will need to change the device fingerprint to pass CtsProfile
Use this module
https://forum.xda-developers.com/apps/magisk/module-magiskhide-props-config-t3789228
Click to expand...
Click to collapse
- I have currently no lock enabled, because i want to do a twrp backup after everything is done, what is the problem with fingerprint and what is CtsProfile?
I'll try that things out, thank you, and edit this when i find some things out
What i want at the end is a rooted Oreo (done) with a working twrp, where i can still flash and backup and restore without wiping data every time and if possible i want to use the normal encryption (the one when i boot system and set it up in settings).
I still dont really get what this auto encryption is.
As far I was aware the 64bit twrp cannot decrypt data apart from the test one I posted
If you don't have a twrp that supports data encryption your phone will still work, you just won't be able to use/flash zips to the data partition or backup/restore that partition
If you get a decrypt data when you boot your phone normally and it doesn't decrypt then you must remove encryption and boot the rom first before applying encryption again
My official 32bit twrp does support data encryption and will work on any 32bit rom including stock oero
Use any version of Magisk that works for you - I no longer own this device & only tested with magisk 17
Everything worked pretty well until i wanted to restore an older backup, I tried to format data before doing the restore but it failed.
After i flashed twrp (official 32bit this time) i did a factory reset to remove decryption and rebooted recovery to prevent the system fromr eplacing it. But when i use format data after that (or already in first place, could be that i tried that, too) it fails, it sais data successfully decrypted and continues and then theres an error. And when i try then a factory reset, too it fails, too.
However, after changing file system to ext4 and than formatting again (i dont remember exactly) i endet up with a working f2fs data partition and was able to use format data and restore backup,...
I am very confused now, because i dont get at all what the heck is the problem, should i not format data and do factory reset or does this happen when i flash the f2fs bug workaround before or is it because i booted the system and begun to change the settings, i have no idea,.. but ill try out and write you when i find something out!
EDIT:
Ok i found some things out, still dont understand at all, but it seems that
format data fails after booting into system
but works after rebooting twrp again
factory reset fails after format data fails
but works after format data works
works not after rebooting twrp, only if format data was successfull before (bec that works again after rebooting twrp)
rebooting system after format data failed will result into a bootloop into recovery with error when trying to enter recovery after manually going to bootloader -> recovery it works
It may help to see it in a table:
After flashing Oreo(boots up) and then twrp:
format data failed
factory reset failed
After flashing Oreo(boots up) and twrp and rebooting twrp:
format data successfull
factory reset successfull
reboot system
reboot twrp
format data failed
factory reset failed
reboot system results in bootloop into recovery with error
reboot twrp
factory reset failed
format data successull
reboot system
reboot twrp
factory reset successull
format data failed
factory reset failed
reboot twrp
factory reset failed
format data successull
factory reset successull
Output when format data fails:
Code:
[CODE]Data successfully decrypted, new block device: '/dev/block/dm-0'
Updating partition details...
...done
Successfully decrypted with default password.
Updating partition details...
...done
Full SELinux support is present.
MTP Enabled
I guess thats the log from twrp start and what followes is the one for format data
Code:
Formatting Data using mkfs.f2fs...
mkfs.f2fs -t 0 /dev/block/mmcblk0p54 process ended with ERROR: 255
Unable to wipe Data.
Unable to format to remove encryption.
Updating partition details...
Failed to mount '/data' (Device or resource busy)
...done
Unable to mount Storage
[/CODE]
And for factory reset after it:
Code:
Failed to mount '/data' (Device or resource busy)
Formatting Cache using make_ext4fs...
Updating partition details...
Failed to mount '/data' (Device or resource busy)
...done
Unable to mount storage
Try a
fastboot erase userdata
Type this in cmd on pc with phone connected via USB in bootloader mode
This will erase everything on internal
TheFixItMan said:
Try a
fastboot erase userdata
Type this in cmd on pc with phone connected via USB in bootloader mode
This will erase everything on internal
Click to expand...
Click to collapse
when should i do that?
Instead of using frmat data?
So when i flash twrp and boot into it first thing i should do is format data right? So i should just after flashing erase userdata and THEN enter twrp or what?
I'll copy in my reply from an other thread where 2 ppl tried to help me.
G5-User7080 said:
hmm, i did as follows:
flash stock (oreo) be sure sparsechunk 0-8 are ALL flashed
let phone start and turn it off again
flash twrp
boot recovery and factory reset
reboot recovery
flash magisk 18
reboot system
install magisk 6.1 apk
The thing is, when i dont reboot recovery after its installation the system will overwrite it with stock recovery and as far as i understood i need to reboot twrp for that.
I just did as i did for Nougat there regarding the post from 'Johny Cipeli':
6. In the Decrypt /data screen, press cancel, then "Swipe to Allow Modifications"
7. Go to WIPE, then "Swipe to Factory Reset"
8. Come back to TWRP main menu, go to REBOOT, then RECOVERY, then DO NOT INSTALL
So should i do then:
flash stock (oreo) be sure sparsechunk 0-8 are ALL flashed
let phone start and turn it off again
flash twrp
boot recovery
reboot recovery
format data
flash magisk 18
reboot system
install magisk 6.1 apk
or is this irrelevant if i first format data, then reboot twrp and then flash magisk?
Why do you flash no-verity? I tried that out earlier but it made no difference on the standard encryption.
I tryed a bit around with the data errors and found some things out, would you mind switching to this thread for the following?
Thank you for helping me, I just get totally confused by the Oreo process,.. worked so easy on nougat
Click to expand...
Click to collapse
As I rooted the device it was on Oreo OPS28.85-13-3 by OTA and I did it like this:
flash latest official twrp 3.2.3.1
make a backup of EFS and persist
boot recovery (now it prompts you to give in a decryption code, just press skip)
format data (F2FS)
don't reboot now
flash magisk 18 (I flashed 17.2 and updated later, no clue why)
reboot to system
install magisk 6.1 apk (if it's missing, in my case it was present)
if you reboot to twrp now it shouldn't prompt you to give in a decryption key anymore
G5-User7080 said:
when should i do that?
Instead of using frmat data?
So when i flash twrp and boot into it first thing i should do is format data right? So i should just after flashing erase userdata and THEN enter twrp or what?
I'll copy in my reply from an other thread where 2 ppl tried to help me.
Click to expand...
Click to collapse
It's the same as format data in twrp
To have it all in one Thread:
Wolfcity said:
So if you can't decrypt your data partition by formatting it (F2FS) and flashing magisk right after it without a reboot in between it may be possible that the bug is still present.
In that case you can give it a try and flash the fix from TWRP, maybe one of the older versions because the latest ones doesn't work for everyone.
Click to expand...
Click to collapse
hmm, i did as follows:
flash stock (oreo) be sure sparsechunk 0-8 are ALL flashed
let phone start and turn it off again
flash twrp
boot recovery and factory reset
reboot recovery
flash magisk 18
reboot system
install magisk 6.1 apk
The thing is, when i dont reboot recovery after its installation the system will overwrite it with stock recovery and as far as i understood i need to reboot twrp for that.
I just did as i did for Nougat there regarding the post from 'Johny Cipeli':
6. In the Decrypt /data screen, press cancel, then "Swipe to Allow Modifications"
7. Go to WIPE, then "Swipe to Factory Reset"
8. Come back to TWRP main menu, go to REBOOT, then RECOVERY, then DO NOT INSTALL
So should i do then:
flash stock (oreo) be sure sparsechunk 0-8 are ALL flashed
let phone start and turn it off again
flash twrp
boot recovery
reboot recovery
format data
flash magisk 18
reboot system
install magisk 6.1 apk
or is this irrelevant if i first format data, then reboot twrp and then flash magisk?
woozie.2007 said:
i dont think so, I rooted in that method, after update to oreo 8.1 stock, i flash official terp, then I flashed no verity 6.0 adn then format data partition. After that i booted in android, it say is encrypted, i can't decrypt it, but it works very well. I rooted two moto g5 stock oreo in that mode. Good luck
Click to expand...
Click to collapse
Why do you flash no-verity? I tried that out earlier but it made no difference on the standard encryption.
woozie.2007 said:
i flashed no verity because i want to decrypt the phone, but i didnt do that, not works, but works twrp for flashing, backup and restore without any problems. I cant say because of no verity or not, but it works. My phone is encrypted, but rooted with magisk 18.0 and i can install any module i want
Click to expand...
Click to collapse
As far as i know from 'TheFixItMan', he said that the 32bit twrp is able to surpass the encryption somehow.
But i guess this is kind of a standard encryption and not the "real encryption" could that be?
Because, i thought encryption means, you have to enter a password on boot to decrypt it.
When you set up your password under security you can choose to enter it on boot and then it will ask you for this password everytime BEFORE booting your system, and this will also be your password to decrypt data for twrp then. But i dont know if thats the "real encryption" or that standatd thing is, too, but just decrypts automatically on boot.
Thank you for helping me, I just get totally confused by the Oreo process,.. worked so easy on nougat
in security option, the phone appear to be encrypted, in nougat after flash no verity the phone was decrypted. In oreo i dont know why is appear encrypted and i cant decrypt with no verity....
Wolfcity said:
As I rooted the device it was on Oreo OPS28.85-13-3 by OTA and I did it like this:
flash latest official twrp 3.2.3.1
make a backup of EFS and persist
boot recovery (now it prompts you to give in a decryption code, just press skip)
format data (F2FS)
don't reboot now
flash magisk 18 (I flashed 17.2 and updated later, no clue why)
reboot to system
install magisk 6.1 apk (if it's missing, in my case it was present)
if you reboot to twrp now it shouldn't prompt you to give in a decryption key anymore
Click to expand...
Click to collapse
I dont have the option to backup efs,.. im using twrp 3.2.3-0 (the latest i could get from official twrp site) but i already did backup efs and persist in nougat, isnt that enough? DO i have to do that again on Oreo?
Also its not asking me for a decryption code, are you using 64bit twrp then?
And i remember that twrp got overwritten 2 or 3 times by stock recovery, and i thought that was because i didnt rebooted twrp again, since i rebooted twrp after formatting data it didnt happen again.
Also it did work for me using the 1. method i wrote earlier, i successfully rooted my phone, im just wondering now which is the "better" or "correct method to either
boot recovery, reboot recovery, format data and flash magisk
boot recovery, format data, reboot recovery, flash magisk
boot recovery, format data, flash magisk, boot system (but i guess next time you enter twrp it gets overwritten by stock recovery then)
boot recovery, format data, flash magisk, reboot recovery and boot system
or stay in bootloader (after flashing twrp) fastboot erase userdata, boot recovery, -data, -magisk, -system
or -recovery, -bootloader fastboot erase userdata, -recovery, -magisk, - system,.... you get the idea
woozie.2007 said:
in security option, the phone appear to be encrypted, in nougat after flash no verity the phone was decrypted. In oreo i dont know why is appear encrypted and i cant decrypt with no verity....
Click to expand...
Click to collapse
Because theres some sort of auto encryption which everytime reencrypts your phone.
I just dont get the sense of formatting data if it gets reencrypted anyway and twrp can surpass encryption.
G5-User7080 said:
After flashing Oreo(boots up) and then twrp:
format data failed
factory reset failed
After flashing Oreo(boots up) and twrp and rebooting twrp:
format data successfull
factory reset successfull
. . .
Click to expand...
Click to collapse
Had to correct that!
So in general after booting system, formatting data fails, maybe it works with fastboot erase userdata (didnt test it, cause i dont want to reflash Oreo again, i wanna go to bed.
But just rebooting recovery after booting first time in twrp works, so after that format data works. Works not..
Now im confused,.. after being in system and returning to twrp format data fails, but it seems when you fail it and then reboot recovery then it works...
So boot recovery, reboot recovery -> format data wont work BUT
boot recovery, format data fails, reboot recovery, format data will work WTF
So i guess either do factory reset instead of formatting data (thats also fine, or not?) or use fastboot erase userdata after flashing twrp in bootloader (i mean i do this while flashing oreo,.. so i dont really get why i have to do that again but i also dont really get why i have to format data a all)
Good night guys, thank you for your help,.. ill continue tomorrow.
G5-User7080 said:
Had to correct that!
So in general after booting system, formatting data fails, maybe it works with fastboot erase userdata (didnt test it, cause i dont want to reflash Oreo again, i wanna go to bed.
But just rebooting recovery after booting first time in twrp works, so after that format data works. Works not..
Now im confused,.. after being in system and returning to twrp format data fails, but it seems when you fail it and then reboot recovery then it works...
So boot recovery, reboot recovery -> format data wont work BUT
boot recovery, format data fails, reboot recovery, format data will work WTF
So i guess either do factory reset instead of formatting data (thats also fine, or not?) or use fastboot erase userdata after flashing twrp in bootloader (i mean i do this while flashing oreo,.. so i dont really get why i have to do that again but i also dont really get why i have to format data a all)
Good night guys, thank you for your help,.. ill continue tomorrow.
Click to expand...
Click to collapse
Latest official TWRP recovery is 3.2.3.1 for potter:
https://eu.dl.twrp.me/potter/
It has the ability to backup EFS and persist (see attached screenshot). I would make a backup just to be on the safe side.
To prevent the device from encrypting again the trick is to flash magisk after formatting data and before rebooting, it deactivates the "force encryption" flag (unless you tick the "keep force encryption" box in magisk manager).
Also I hadn't any problems to make TWRP stick.
Edit: A factory reset won't reformat data.
If you want your data partition decrypted or not depends on your needs. Encrypted is safe but you're not able to access it to make any changes unless you decrypt it again....
Wolfcity said:
Latest official TWRP recovery is 3.2.3.1 for potter:
https://eu.dl.twrp.me/potter/
It has the ability to backup EFS and persist (see attached screenshot). I would make a backup just to be on the safe side.
To prevent the device from encrypting again the trick is to flash magisk after formatting data and before rebooting, it deactivates the "force encryption" flag (unless you tick the "keep force encryption" box).
Also I hadn't any problems to make TWRP stick.
Edit: A factory reset won't reformat data.
If you want your data partition decrypted or not depends on your needs. Encrypted is safe but you're not able to access it to backup data or make any changes unless you decrypt it again....
Click to expand...
Click to collapse
I have the G5 not plus, theres no 3.2.3.1 yet. (Aber lustig, dass du auch aus deutschland bist (denk ich mal) ).
Ahh so i have to flash magisk right after decrypting by formatting data? But i cant successfully format data when i come from system as i wrote earlier so the question is if it works when i fastboot erase userdata to decrypt data and if data doesnt get reencrypted when i boot then twrp.
I guess if the force encryption reencrypts when i boot recovery, too it wont work, then i guess the only way is to enter recovery, do a failed attempt, reboot recovery, and successfully format data.
Edit:
It deactivates the "force encryption" flag (unless you tick the "keep force encryption" box).
Click to expand...
Click to collapse
Also after installing magisk and booting system it still says encrypted in settigns so i thought its not removing the force encrypt. And i dont have found that switch yet..
Wolfcity said:
To prevent the device from encrypting again the trick is to flash magisk after formatting data and before rebooting, it deactivates the "force encryption" flag (unless you tick the "keep force encryption" box in magisk manager).
Click to expand...
Click to collapse
Hi,
If i already have the phone encrypted and rooted with magisk, "keep force encryption" is tick, if I will untick the option will booting decrypted?
G5-User7080 said:
I have the G5 not plus, theres no 3.2.3.1 yet. (Aber lustig, dass du auch aus deutschland bist (denk ich mal) ).
Ahh so i have to flash magisk right after decrypting by formatting data? But i cant successfully format data when i come from system as i wrote earlier so the question is if it works when i fastboot erase userdata to decrypt data and if data doesnt get reencrypted when i boot then twrp.
I guess if the force encryption reencrypts when i boot recovery, too it wont work, then i guess the only way is to enter recovery, do a failed attempt, reboot recovery, and successfully format data.
Edit:
Also after installing magisk and booting system it still says encrypted in settigns so i thought its not removing the force encrypt. And i dont have found that switch yet..
Click to expand...
Click to collapse
Ah ok, I thought your device is a potter.
The checkbox is found inside magisk manager but it is unticked by default so the device should decrypt.
Have you tried the official twrp instead of the 64bit unofficial version?
Maybe try magisk 17.2 too as I did.
And yes, I'm from good old Germany too.
woozie.2007 said:
Hi,
If i already have the phone encrypted and rooted with magisk, "keep force encryption" is tick, if I will untick the option will booting decrypted?
Click to expand...
Click to collapse
I think you will have to decrypt data by formatting it, unticking the checkbox just prevents the device from encrypting itself again. You should find some additional informations:
https://www.didgeridoohan.com/magisk/MagiskInstallationIssues