Downgrading - is this possible? - T-Mobile Samsung Galaxy S6 Edge

Hi, I just updated my S6 to G925TUVU5EQC2 and want to go back to G925TUVU3EPD1 to root it. I tried flashing the stock EPD1 rom but it doesn't work (binaries not compatible). How do I go back a version?

Not possible when binaries aren't same

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Reverting to stock for lollipop?

Do we have to revert to stock Rom to upgrade to lollipop? Was wondering if it's the same with the htc eye update wherein you have to go back to stock and update manually before flashing the custom rom. I am having an extremely difficult time going back to stock for some weird reason.
For every major update on this device so far (AFAIK) HTC has updated the firmware. So yes, my guess will be that you will need to update firmware to run Sense Lollipop custom ROMs And unless you s-off and therefore able to update the firmware manually; your alternative will be to return to stock ROM and recovery and OTA to Lollipop.
Ohhh, Been trying to revert to stock but it just doesnt work. thanks
If I'm just rooted and not s off stock Rom and all that anything I need to do to get the lollipop update or just wait for it to hit my ota on my phone?
SOEBOMB said:
If I'm just rooted and not s off stock Rom and all that anything I need to do to get the lollipop update or just wait for it to hit my ota on my phone?
Click to expand...
Click to collapse
Just wait for it. If you're stock then you shouldn't have a problem. The only real headache will be how long you have to wait to get the OTA.
Stock: Stock ROM, Stock Recovery, No changes to system i.e no xposed framework. No deleted pre-installed apps(Facebook etc) no changes to files like platform.xml, build.prop etc.
Being rooted on the other hand shouldn't cause any problems.

[Q] Need help! Steps on installing lollipop with custom recovery + root

Hi guys,
I'm not sure exactly where to look for the steps because I'm in a unique situation or atleast I think I am. I need help on installing the LOLLIPOP firmware (N900TUVUFOB6) with a custom recovery and root. I am currently on a rooted note 3 v4.3 with the N900TUVUBMI7 baseband version.do I need to update my bootloader to a newer version? Should I atleast do a stock update to 4.4? Should I be using which custom recovery?
If I'm correct, I can't just flash the latest custom recovery and then flash the newest lollipop (for example the newest TEKHD like this link http://forum.xda-developers.com/showthread.php?t=2672393
Or can I? What If I just did a normal software update to upgrade me to lollipop, will the bootloader be blocked, disabling me from installing a custom recovery since I would want to root as well. And then would I be able to resume the steps from TEKHD instruction?
Thanks!

Does installing a TWRP Backup also affect phone Firmware?

Hello guys,
following situation:
Long time I had a 4.4.something Rom installed. Before I flashed a custom Lollipop rom, I followed the advice to just go back to stock and let it update to Lollipop so that the firmware will be updated accordingly and I won't run into problems when flashing a Lollipop Custom Rom. Everything worked fine. Now I had to send my phone to HTC for display repair and just to make sure they won't nag about the custom Rom I reflashed some older stock rom via TWRP backup I found here, I think it was a 4.0 or so. The question is, does this also affect my phones firmware or is it still on the current newest level? So when I get it back, would I need to update to stock Lollipop again before flashing a custom rom or can I go for it straight away?
fBx said:
Hello guys,
following situation:
Long time I had a 4.4.something Rom installed. Before I flashed a custom Lollipop rom, I followed the advice to just go back to stock and let it update to Lollipop so that the firmware will be updated accordingly and I won't run into problems when flashing a Lollipop Custom Rom. Everything worked fine. Now I had to send my phone to HTC for display repair and just to make sure they won't nag about the custom Rom I reflashed some older stock rom via TWRP backup I found here, I think it was a 4.0 or so. The question is, does this also affect my phones firmware or is it still on the current newest level? So when I get it back, would I need to update to stock Lollipop again before flashing a custom rom or can I go for it straight away?
Click to expand...
Click to collapse
It won't affect your firmware.
Okay thanks, so Firmware should still be up to date and I can flash a Lollipop Custom Rom. I don't know what they do at HTC repair, if they only reset it or if they also update it, well I'll see.

[SMP600] on 4.4.2 custom - want to upgrade, I'm on ND1 do I need to upgrade firmware?

The title almost says it all.
I am on a custom 4.4.2 ROM (using ND1 firmware) and want to look into upgrading to 5.1.1 or higher. Obviously rooted with TWRP recovery.
I know I'll need to upgrade my TWRP from 2.6.0.3 or whatever it is on right now to 3 or better - but I need to know if I will have to flash official stock 5.1 to upgrade to the newest firmware, if there is a newest firmware, to get the install clean with minimal errors or can I just flash a custom TW ROM and hope that upgrades the firmware, if there is new firmware, or is there a thread I can be directed to so I can read up on what I need to do to upgrade?
Or since I am already rooted with TWRP, can I just upgrade or flash my twrp to a known good version and flash a rom then be on my way?
Thanks in advance!
Dear Friend , It's all clear that if if you want to install any TW Lollipop ROMs, you need to first install a Lollipop firmware ( Using Odin ) to install a Lollipop bootloader ( do not even think of ticking the update bootloader in Odin because then you wouldn't be able to revert into KK firmware and then you can't run any KK ROM on Lollipop bootloader ) and then install a TWRP ( I recommend ShevT's one which is less glitchie and faster than the official ones because of the F2FS support !! ) and then you're free to go the way you like
... Hope it helps ... With Best Wishes - Hitman1376

Downgrade from Oreo to Nougat - no root - stock recovery

Hello ,
i have upgraded using OTA to Oreo but some of the critical apps related to my work are not compatible with Oreo yet so i want to downgrade to Nougat,
I have non rooted phone with stock recovery,
i have also searched for this but couldn't find a answer for stock recovery.
Kindly please help.
Go to the below link and download the special build they have provided there and flash it via recovery. You'll be booted back to nougat though you'll loose partial data. You can find more info there.
Link : https://forums.oneplus.net/threads/...e-oneplus-3-and-19-for-the-oneplus-3t.700432/

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