I know there are other posts similar to this one, however they seem to be outdated (at least somewhat) for the reason below.
I have a Note 3 (N900A) I've been preparing to rollback to 4.4 following instructions found here.
However apparently AT&T has pushed out a new OTA that updated the baseband to N900AUCUE0C2.
I haven't been able to find any information on this update online in my searches. I was wondering if anyone knew if this update made it any more difficult to roll back or locked the bootloader in anyway.
Thank you in advance.
I'm on 5.0 currently with root. Just checking if it's currently possible to keep root, and upgrade to a newer version.
Maybe. If you have the G900A, you can try here. I don't know about the G870A, though.
I think the last upgrade that was able to keep root was 5.0 build OF3. http://forum.xda-developers.com/att...w-to-update-to-g900aof2-5-0-keeproot-t3149146
Everything else after that have been unrooted stock roms that at least maintained the ability to rollback. The stock OTA updates of the newer version block you from rolling back to old versions.
I have a tab s2 sm-t710 on nougat T710XXU2DQCL that was installed OTA and would like to know if i am able to downgrade to 6.0.1. The device is 100% stock and was wondering if ODIN would give me any grief about downgrading. The PDA number of the 6.0.1 file is T710XXU2CPK1 (Cellular South).
Thanks
On paper, I think you should be fine. :angel:
I'd also like to know this as battery life seemed much better on 6.0.1 for me.
i did downgrade my T 815 from 7.0m to 6.01 using odin. didnt face any difficulties. i did a complete wipe/format after i downgraded .
Can you not downgrade with TWRP as well?
Anyone knows how can I downgrade this tablet? It's in stock
Kyrat said:
Anyone knows how can I downgrade this tablet? It's in stock
Click to expand...
Click to collapse
I used Odin and firmware downloaded from sammobile and it worked flawlessly. I've performed downgrades on over 100 tablets so far and they have all worked good.
Downgrded my t713 long time ago and didn't have a single problem, you just need to download a compaitable firmware from sammobile!
Kyrat said:
Anyone knows how can I downgrade this tablet? It's in stock
Click to expand...
Click to collapse
You're safe to downgrade as long as it's allowed. Older builds will fail immediately so there is no harm to downgrade.
I've seen a few people asking about downgrading. Whats the reason behind this? Is N glitchy?
Need help downgrading SM-T719Y
Hawkhell said:
I've seen a few people asking about downgrading. Whats the reason behind this? Is N glitchy?
Click to expand...
Click to collapse
N does not work at all well with DJI drone remote controllers. I foolishly updated my brand new SM-T719Y 8" and Now I cannot connect to my drone at all. I have an pre 2016 Tab S2 on Android 6.01 and bingo works.
This size pad is the preferred size for drones and has enough grunt to provide stutter free vision. Cannot comment on anything else about N as this pad will only be used for my drone...
Yt2...
Beut said:
You're safe to downgrade as long as it's allowed. Older builds will fail immediately so there is no harm to downgrade.
Click to expand...
Click to collapse
Hi Beut,
I have been trying yo downgrade my Tab S2 SM-T719Y LTE from Nougat to 6.01 and have correct downgrade and Odin. Every time I try to downgrade it fails straight away, so I was wondering what you ment by "as long as it is allowed" & "older builds" will fail immediately.
I need to get this happening as I cant fly my drone.
Cheers Yts...
I don't have your model so it cannot verify. However, other models I can downgrade to older builds close to the Nougat.
Like SM-T580 or SM-P580, both are Android 7, QF1 and QE4 respectively. I can downgrade them to PL4 or PL2, Android 6 but not the PG1.
Q: 17 or 2017
P: 16 or 2016.
The second letter is the month it's released.
You also need the right bootloader, different OS has different bootloader. Many just flash the AP file only without bootloader, it'll failed when downgrade.
Is it possible that you cannot downgrade Nougat to 6.01 as every time I try on my SM-T719Y Tab S2 LTE, it fails straight away. I have tried 3 different downloads and all failed, but Odin will let me overwrite my Nougat with a downloaded version of Nougat from the same web location as I got one of the 6.01 firmwares from.
Here are my fail messages.
View attachment 4242043 View attachment 4242046
Is it me or is it this model of the Tab S2 SM-T719Y????
When downgrade to MM you need the BL ( Bootloader ) goes with the AP . Boot loader of Nougat is not the same as MM , however bootloader of LTE version is locked
Sammy doesn't want you to downgrade.. nougat is planned obsolescence, I'd say.
Beut said:
When downgrade to MM you need the BL ( Bootloader ) goes with the AP . Boot loader of Nougat is not the same as MM , however bootloader of LTE version is locked
Click to expand...
Click to collapse
Hey I've been trying to downgrade my T719Y for days now. Constantly failing and googling everything I can to find where I'm going wrong.
How would I know if I have the LTE version? And if I do and the bootloader is locked, does that mean I can't downgrade?
If I don't have the LTE version, you're saying I need the bootloader and AP to downgrade? Where can I find the bootloader?
I'll keep searching and trying but this is wearing me down. Any assistance would be greatly appreciated. My surveyors can't do a damn thing with our giant UAV until I fix this
LTE version is the one that has SIM, usually it's next to SD slot. Most LTE versions have locked bootloader, that's why you cannot downgrade firmware.
I just kept an older phone for apps available only for 6.0. Like scr recorder. Otherwise there are no reasons to downgrade
So i have a 950U1(XAA) and after dabbling around with the root (samfail rev3) I decided to go back to stock. I did somehow get back to stock but I installed the wrong version which was android 7.1.1 for a 950U (USC). I've been trying to flash in the correct model 950U1 (XAA) but to no avail I can't get odin to flash it. I keep getting an error "sha256".
Despite all of this rooting the phone via samfail rev 3 still works
The version of odin i was using during all of this was the PrinceComsy version found in the snapdragon note 8 root thread
EDIT: just stumbled across this after posting https://forum.xda-developers.com/galaxy-note-8/how-to/guide-sm-n950u-u1-t3685884
o boy do i feel dumb.
I'm fairly certain that thread holds all I need
Hello,
If this is in the wrong area, please forgive me. I tried my best to make sure it is in the right area, and I'm not super familiar with this site (though I've read here from time to time!)
A long time ago, my S8 Active upgraded to Pie, and I downgraded because I didn't like it at all. Well, I hard-reset my phone last week and I forgot to disable the update feature, and I have Pie again. So I want to downgrade again. However, using the firmware from sammobile.com and the latest Oreo firmware, Odin3 gives me a generic "failed" error. I suspect it's a bootloader version issue, but I really don't know enough about this to know for sure. My current firmware is G892USQU7CTG2 (T-Mobile). Is that bootloader version 7? If so, I think I'm screwed because, as I understand, you can't downgrade to a firmware with an older bootloader version... is that correct? The newest version of Oreo is G892USQS5BSG4, which I think is bootloader 5. If my understanding is correct, then... is there any way to downgrade the bootloader on my phone? I really really don't want Pie.
Thanks for your time and (hopefully) good news!