Can I go back to version 5.0.1 Safely? - Galaxy S6 Q&A, Help & Troubleshooting

Hi All,
I have galaxy S6 SM-G920F running Marshmallow. Can I go back to previous version 5.0.2 safely? I want to root the phone without tripping knox counter.

Philadelphia said:
Hi All,
I have galaxy S6 SM-G920F running Marshmallow. Can I go back to previous version 5.0.2 safely? I want to root the phone without tripping knox counter.
Click to expand...
Click to collapse
You'll have to root the phone to go back a version, which of course trips KNOX
(or perhaps you won't have to root per se, but any methods will still trip KNOX. Even 'factory reset' doesn't put you back to the version you had out-the-box from my experience)

2ZE said:
You'll have to root the phone to go back a version, which of course trips KNOX
(or perhaps you won't have to root per se, but any methods will still trip KNOX. Even 'factory reset' doesn't put you back to the version you had out-the-box from my experience)
Click to expand...
Click to collapse
Did anyone try this method
http://justforprogrammers.blogspot.com/2015/12/downgrade-from-marshmallow-to-lollipop.html

Philadelphia said:
Did anyone try this method
http://justforprogrammers.blogspot.com/2015/12/downgrade-from-marshmallow-to-lollipop.html
Click to expand...
Click to collapse
That will trip KNOX

Yes. I went from rooted 5.1.1 ti 6.0.1 and back to 5.1.1 now back again on 6.0.1 on my personal s6. My wife's phone was flashed around a few times too from 6.0 back down to 5.1.1 and back to 6.0.1.. Both us cellular Smg920r4

There's no way to downgrade to 5.0.2, you can downgrade it only one of latest 5.1.1 ROM.

Related

Canadian Note 3 (N900W8) Knox Thread (0x0 can be maintained)

There are users here in Canada with Note 3's that have "Custom" in "Current Bianary" and "System Status".
This information has not been posted, I have NO idea why. I am guessing these people could care less about us (the people still in the dark).
I have only just obtained a Note 3 (Week ago) and I am trying to figure this stuff out.
We have a special Note 3 in our N900W8's. Apparently we can:
- Downgrade from 4.4.2 to 4.3 via Odin 3.09 without tripping Knox (not sure if this requires the Mexican bootloader first or if we can do it with our Canadian bootloaders)
- Keep Knox at 0x0 with Custom Everything else. From what I see, our bootloaders are unlocked allowing us to flash our phones in Odin with multiple files (not 1 file mode as this contains a bootloader) as long as we dont include the bootloader (theory from what I have seen, and read a few times, no confirmation).
However I can not get an answer out of anyone who knows anything. I cannot just blindly flash and see if Knox is tripped, I'll only get one shot. Not worth it IMO.
Can anyone chime in on this? Is it acceptable to call members out? I know exactly who the 2 people are that have Custom everything and Knox at 0x0. 2 Torontonians, younger guys, doesn't seem like they want to talk though. Can I call them in here, is that acceptable behavior? Never done that before. Hehe.
I can confirm. I used this method:
http://forum.xda-developers.com/showthread.php?t=2614772
I have a Rogers Note 3 with CWM installed and rooted with Knox at 0x0. My friend just updated his Note 3 to kit Kat (through kies) and rooted using cf-autoroot and his knox is 0x0. I haven't tried downgrading so I cannot comment on that.
I am planning to flash the official Rogers rom shortly and then root (not sure about installing a custom recovery yet) I will report back when completed.
I PM'd you but yeah, I'm Knox 0x0 on X-Note 12 right now. Sorry about that, wasn't home.
kiru said:
I can confirm. I used this method:
http://forum.xda-developers.com/showthread.php?t=2614772
I have a Rogers Note 3 with CWM installed and rooted with Knox at 0x0. My friend just updated his Note 3 to kit Kat (through kies) and rooted using cf-autoroot and his knox is 0x0. I haven't tried downgrading so I cannot comment on that.
I am planning to flash the official Rogers rom shortly and then root (not sure about installing a custom recovery yet) I will report back when completed.
Click to expand...
Click to collapse
That link notes that installing a custom recovery will trip knox. Could you please verify what you did to install custom recovery and still maintain knox 0x0? Will be very interested in your follow-up.
kiru said:
I can confirm. I used this method:
http://forum.xda-developers.com/showthread.php?t=2614772
I have a Rogers Note 3 with CWM installed and rooted with Knox at 0x0. My friend just updated his Note 3 to kit Kat (through kies) and rooted using cf-autoroot and his knox is 0x0. I haven't tried downgrading so I cannot comment on that.
I am planning to flash the official Rogers rom shortly and then root (not sure about installing a custom recovery yet) I will report back when completed.
Click to expand...
Click to collapse
Could you also PM me the procedure? Knox is really bugging me and TW is bloated with too many craps. X-Note looks awesome! Thanks !
bingbinghaha said:
Could you also PM me the procedure? Knox is really bugging me and TW is bloated with too many craps. X-Note looks awesome! Thanks !
Click to expand...
Click to collapse
Actually, I would be interested too. Any chance of posting the procedue instead of PM to multiple users? If not, please PM me as well
I followed the guide in the link I posted as it is pretty detailed already. I have root and cwm recovery installed with Knox at 0x0.
kiru said:
I followed the guide in the link I posted as it is pretty detailed already. I have root and cwm recovery installed with Knox at 0x0.
Click to expand...
Click to collapse
Second that.
---------- Post added at 12:55 AM ---------- Previous post was at 12:38 AM ----------
Okay here. https://www.youtube.com/watch?v=Tks73wZH3qg&list=UU2FLZg9YNAr4YAd0VEDDKGQ
You have to pause to see it at the beginning, and in hindsight, I probably have should of started in CWM, then booted into recovery, but whatever.
Set it to HD and pause it at the beginning, you can see my Knox 0x0. Then watch the video and I boot into the ROM, then back into CWM, all in one cut.
Cheers.
Same here
Knox 0x0 here, after a few good reasons to trip it
Android newcomer here.
I have a Bell Canada SM-N900W8, and it came with 4.3. Rooted 4.3 with Kingo (noob style) and that was just perfect to start out. Then the OTA came out. I unrooted the device, reseted with Kies 3 update to 4.4.2 and then Kingo wasn't working anymore of course.
At that point I decided I didn't care about tripping knox and installed TWRP to start trying roms... Tried like 2-3 1+gb complete packed roms (bootloops, probably cauz im a noob) then I wiped from TWRP, restored my OTA backup, flashed with CF-Auto-Root international version (canadian is another bootloop) and then flashed a CivZ kernel +stock-modification rom that I now simply keep clean with Titanium Backup and some apps y'all know about.
Some more info :
My version is VLUCNB7
My current kernel [email protected]
My current SE state is Permissive
Again, Knox is 0x0. Even after bootloops of custom crap that was crashing and I'm custom-rom, custom-kernel.
Two facts to finish that off
1) That's weird
2) I'm a lucky *****
Have a great day
What if I want to use a custom 4.3 ROM (just to get BT Tethering) without tripping KNOX?
The guides seems to push you to install the 4.4 ROMs.
I have the Bell version of N900W8.
Started at MI5, rooted de la vega, then wanted to upgrade to 4.4.2.
Used polishpats way of upgrading with the leaked 4.4.2, flashed all the AP,CSC,CP,PIT, then installed TWRP and autorooted, both with Odin 3.09 - no knox trip
Wanted to try X-note, installed it using TWRP, and no knox trip
Upgraded the kernel using TWRP, no knox trip
Did not like X-note, wanted to go back to 4.4.2, and reflashed it - no knox trip
Downgraded back to 4.3, no knox trip
upgraded to offical 4.4.2, no knox trip
rooted via chainfire and odin - no knox trip
now sitting at rooted 4.4.2 with 0x0 still
Are you basically saying Bell's N900W8 is KNOX untripable?
I'm on MJ4 (UDLV Rooted) with remaining with MJ1 Bootloader
Since I don't want a KITKAT rom, can I just install a custom recovery (TWRP) without doing all that Mexican instruction stuff?
I really just want a 4.3 ROM with BT Tethering.
klau1 said:
Are you basically saying Bell's N900W8 is KNOX untripable?
I'm on MJ4 (UDLV Rooted) with remaining with MJ1 Bootloader
Since I don't want a KITKAT rom, can I just install a custom recovery (TWRP) without doing all that Mexican instruction stuff?
I really just want a 4.3 ROM with BT Tethering.
Click to expand...
Click to collapse
Hello,
My friend has just the same phone as me, he bought it a few weeks before me, and he used his own techniques and got 0x1 knox tripped, so I just can't warn you enough : not all N900W8 are "untrippable"
...but...I didn't trip mine and I'm not alone.
Without more information you can't just say canadian w8's are untrippable, cauz they are.
Well, are older the better?
I got mine the first week it came out.
klau1 said:
Well, are older the better?
I got mine the first week it came out.
Click to expand...
Click to collapse
I doubt it.
Will look into this. I am positive all N900W8's are the same.
Surely your friend missed something or did something improperly to trip Knox.
Taking this all in. Thanks for the posts guys!
@nexxusty
in your opinion, do you have to go thru installing KITKAT rom from Mexico if you just want to install another 4.3 ROM that has BT Tethering without tripping KNOX?
klau1 said:
@nexxusty
in your opinion, do you have to go thru installing KITKAT rom from Mexico if you just want to install another 4.3 ROM that has BT Tethering without tripping KNOX?
Click to expand...
Click to collapse
Klau you took the question right out of my head brother. LOL.
I am not sure... this also pains me as I want to try CF-auto Root right now on 4.4.2 Rogers.
From my knowledge of technology, I dont think it will. Not positive though. I am hoping you do not need to flash this.
I will test for us. Here is hoping I wont lose my warranty. Will report back.
nexxusty said:
Klau you took the question right out of my head brother. LOL.
I am not sure... this also pains me as I want to try CF-auto Root right now on 4.4.2 Rogers.
From my knowledge of technology, I dont think it will. Not positive though. I am hoping you do not need to flash this.
I will test for us. Here is hoping I wont lose my warranty. Will report back.
Click to expand...
Click to collapse
Flashed CF-Auto-Root, flashed TWRP 2.6.3.0, 0x0 still!
Now for the info on my phone.
I have done as follows.
Phone came with 4.3 stock --> Root De La Vega --> Flashed 4.4.2 Stock (Rogers) with Odin 3.09 --> CF Auto-Root --> TWRP 2.6.3.0 = Rooted 4.4.2 with TWRP 2.6.3.0 Recovery and Knox @ 0x0.
I'm not stopping here. Will flash everything DrawntoLife has.
Appreciated my man. Thanks again! Easy to Follow Step By Step Tutorial **WILL** be written tonight after I am done at a LAN I am already late for figuring this out.
Talk soon everyone! Happy flashing!
did you consider extracting the ODIN package and leave out the Bootloader?
Remember we had to do that upgrading from MJ1 to MJ4. Reportedly, it was the newer bootloaders that trip KNOX.
klau1 said:
did you consider extracting the ODIN package and leave out the Bootloader?
Remember we had to do that upgrading from MJ1 to MJ4. Reportedly, it was the newer bootloaders that trip KNOX.
Click to expand...
Click to collapse
When I updated to 4.4.2? I did, but I was not sure if that would trip Knox so I left it in the package.
It's irrelevant now anyway, the bootloader in 4.4.2 Rogers is the one I am on now and allowing me to do all this still.
I suggest you update to it. Use the package labeled "N900W8VLUCNB7_N900W8OYACNB7_RWC". That is 4.4.2 for a Rogers Note 3.
I can safely assume you can flash this at any point and be fine. Even if you are already on a hacked 4.4.2 or something. There would be no issue updating the bootloader to the same version, would just overwrite it.

[Q] Upgrade from 5.0.2 (rooted) to 5.1.1 without tripping KNOX possibility?

Hello everybody
I want to upgrade to Android 5.1.1 without tripping KNOX. Is there a way to upgrade via FlashFire? I heard that is not possible because the new bootloader has a write protection (only downgrade is not possible anymore).
My current rom is G920FXXU1AOE3 rooted with PingPong-root.
Thanks in advance
Saafir said:
You can unroot and upgrade without tripping knox. Although the only working root method for 5.1 is a slightly modified stock kernel (to my knowledge) which in turn will trip your knox. And yes, you're correct, once upgraded to 5.1 you cannot downgrade without special equipment.
Click to expand...
Click to collapse
I thought so. Hmm what if I try to flash the full stock firmware G920FXXU2BOFJ (DBT) over FlashFire with the EverRoot option and flash the bootloader via Odin?
Saafir said:
I can't answer that with certainty but sounds good in theory. Awfully risky shot in the dark though ;(
Click to expand...
Click to collapse
Unfortunately it doesn't work. I'm stuck now on Android 5.1.1 unrooted ??
A downgrade doesn't work even if I repackaged the firmware file (with 5.1.1 bootloader and 5.0.2 system, kernel and modem etc). It stops while flashing kernel... ?
For those who failed to root, have a look at this one: https://www.youtube.com/watch?v=5qL9qKbQa54 It helped me rooted my S6 with Android 5.1.1 and Knox is still OK
molanjami said:
For those who failed to root, have a look at this one: https://www.youtube.com/watch?v=5qL9qKbQa54 It helped me rooted my S6 with Android 5.1.1 and Knox is still OK
Click to expand...
Click to collapse
Your link is broken and i highly doubt it was legit.
There are still no known way to root in 5.1.1 without tripping the knox counter, sorry.
- Renolz
renolz said:
Your link is broken and i highly doubt it was legit.
There are still no known way to root in 5.1.1 without tripping the knox counter, sorry.
- Renolz
Click to expand...
Click to collapse
Yes i also checked the video is no more on youtube . sorry folks

Downgrade from 5.1.1 to 5.0.2 - SMG920F

hy people.
its my first time on galaxy s6 here. for months i had the 5.0.2 firmware original, nothing changed, perfect. it was really fastest.
but when it comes out the 5.1.1 update, problems started. really bad battery life (i never had this problem), more lags un the transition animations, i can confirm this because for four moths i never had lag where now there are prominently.
so now i decide to come back to a rom/firmware with the 5.0.2 (0 problems in that firmware).
is there a possibility now?.
let me know, thanks. I'm on "G920FXXU2POFJ" (vodafone italy).
It's not possible to downgrade from 5.1.1
Nope. Not possible. Im getting a worse battery life than i had in 5.0.2 since now i don't root to greenefy a lot of apps. Still it is usable. When a root without tripping knox is available everything will be fine again.
tntgdh said:
Nope. Not possible. Im getting a worse battery life than i had in 5.0.2 since now i don't root to greenefy a lot of apps. Still it is usable. When a root without tripping knox is available everything will be fine again.
Click to expand...
Click to collapse
i hope so, thank you guys
tntgdh said:
When a root without tripping knox is available everything will be fine again.
Click to expand...
Click to collapse
There is a good chance that root without tripping KNOX may not ever happen again. Then people will have to choose if they still want root or not tripping KNOX.
krelvinaz said:
There is a good chance that root without tripping KNOX may not ever happen again. Then people will have to choose if they still want root or not tripping KNOX.
Click to expand...
Click to collapse
I thought about that. In that case i would choose root. I giving some time to see if anyone can do it first. If not i will root it anyway
guys. I'm thinking. since there is on way to downgrade now, I'm on the 5.1.1 vodafone brand, can i install a ITV 5.1.1 NO-BRAND?
Anyone knows which post should I follow in order to get updates about 5.1.1 rooting? I've flashed manually (stock 5.1.1 on G920I) and I really regret that I can't root and install Xtrestolite right now.

Will it trip KNOX?

Hello! I bought a S6 (G920F) two months ago and it came with 5.1.1 android installed. I want to root it but without tripping KNOX because I have two year warranty. I know that pingpong root does this but on 5.0.2. Can I flash the official build for 5.0.2 via Odin and don't get KNOX tripped? Thanks!
Nedrozak said:
Hello! I bought a S6 (G920F) two months ago and it came with 5.1.1 android installed. I want to root it but without tripping KNOX because I have two year warranty. I know that pingpong root does this but on 5.0.2. Can I flash the official build for 5.0.2 via Odin and don't get KNOX tripped? Thanks!
Click to expand...
Click to collapse
Once on 5.1.1 you can't go back to 5.0.2. I can't remember the outcome of trying but it may result in a brick.
I think you could flash an engineering bootloader for the F variant and root it without tripping knox
Nedrozak said:
Hello! I bought a S6 (G920F) two months ago and it came with 5.1.1 android installed. I want to root it but without tripping KNOX because I have two year warranty. I know that pingpong root does this but on 5.0.2. Can I flash the official build for 5.0.2 via Odin and don't get KNOX tripped? Thanks!
Click to expand...
Click to collapse
if your firmware is COI9 or newer, you can do root without tripping knox.
erghetto said:
if your firmware is COI9 or newer, you can do root without tripping knox.
Click to expand...
Click to collapse
Yes, my firmware is COI9. How can I do this?
Nedrozak said:
Yes, my firmware is COI9. How can I do this?
Click to expand...
Click to collapse
sorry, my mistake in writing.. i wrote can instead of can't.
if you're on COI9 or later you CAN'T obtain root without tripping knox..
sorry

Galaxy s6 SM-G920V

Is there a currently working root for G920VVRU4CPF4 or a way to downgrade to a lower baseband version? I am not worried about tripping knox.
Syrax87 said:
Is there a currently working root for G920VVRU4CPF4 or a way to downgrade to a lower baseband version? I am not worried about tripping knox.
Click to expand...
Click to collapse
No, I believe no root exploits since firmware OF1 (5.0.2). Not positive but to trip Knox you would need to flash a custom recovery which isn't available to Verizon S6 since you need to unlock bootloader.

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