Can i flash an older stock ROM version? - Samsung Galaxy S7 Edge Questions and Answers

I have currently the stock APD1 (April security patch) but want to flash stock APB4 (which is older, February security patch) becasue I want to compare battery life on both (I've read better results on the original firmware from the S7 Edge)
ARe there any concerns/warnings about flashing an older firmware version through ODIN?
Thank you very much!!

The only concern is when you flash to an Old Stock firmware is that you loose your Data so i would suggest to backup everything and After that youre Good to go.

Related

how do i update my firmware if its not yet available for my region?

hi there i am using the dual sim version of the s7 edge from singapore but i am still waiting for the latest firmware update. been itching to see if it makes a difference to the battery life i am current experiencing on my phone. still stuck on PB3 and wishing i had the PD1 firmware.
i have done a bit of reading around and all i found was that there are other countries with the newest firmware
http://www.sammobile.com/firmwares/database/SM-G935FD/
the CSCs all read the same G935FODD1APBA so i am unsure if it will be safe for me to install it. will it affect my modem?
also i am quite confused between using ODIN to flash vs flashfire, are they both the same and will allow me to update the firmware without a wipe?

XT1622 Nougat Stock ROM?

Everywhere I've been looking for the stock ROM for my phone (Moto G4 XT1622 RETEU channel), but I just find links to some sketchy file hosting sites with old versions. Is there any official way to get the latest stock ROM?
I was on LineageOS for the longest time but decided to go back to Stock because a game got updated and doesn't work on any custom ROM anymore.
The ROMs provided by Motorola are old - 6.0.1 (Build MPJ24.139-64) to be precise. As far as I know the update to Nougat has long been released. But I installed the old version anyways, thinking that I'll get the new one via OTA. But every time I check for an update it tells me I'm on the latest version.
Is it because I have an unlocked bootloader? I already tried to relock, but if I understand correctly, I need a newer version of the stock ROM to lock it. ("preflash validation failed / security version downgrade"). But I don't have or can find a newer version xD Am I screwed?
Look on MOTO G4 Plus forum on XDA. Both are Athene and should work for both devices. Revivor2, CreamPie Nougat, and stock by DroidPhil are roms that can be flashed via TWRP. You can download official stock roms and flash via FASTBOOT also. March Security Update is the safest official 7.0 stock rom to flash. June Security Update is an OTA addition to March's one and can cause brick on some devices if you want to roll back to an older rom like March Security Update.
https://forum.xda-developers.com/moto-g4-plus/how-to/stock-rom-npjs25-93-14-4-march-1-t3608138

What firmware for XT1681

Hey there !
I have a Moto G5 Plus International edition (XT1681) with firmware NPNS25.137-92-4 (latest January Patch).
I want to know what firmware to download from here (https://firmware.center/firmware/Motorola/Moto G5 Plus/Stock/) for factory flash not to get bricked like an idiot.
I don't know which one is good
Thanks
The last 2 ROMs are for your device, if you have a custom recovery I recommend to install the flashable version from this link .
https://forum.xda-developers.com/g5-plus/development/rom-twrp-flashable-stock-builds-t3675616
Here are the same version of your device NPNS25.137-92-4 (20180101 security patch)
Oh nice !
Is it OK to OTA update on these flashable .zip ? As I have also modified the kernel which is not stock anymore :/
CobraBoyFR said:
Oh nice !
Is it OK to OTA update on these flashable .zip ? As I have also modified the kernel which is not stock anymore :/
Click to expand...
Click to collapse
i didnt try to flash over a fastboot rom, maybe you cant do that.
Thanks
But basically, what I need is flashing full stock firmware (with recovery and kernel), no matter if it's january update or not. Just the factory images I had when I bought the phone. And I don't know what version is OK for my phone (XT1681 with NPNS25.137-92-4 now) 'cause I don't want to hard brick it when OTA updating (to Oreo for example)
From your link the last 2 ROMs are the same so you can use both.
You are on stock right? Do you planning on flashing custom ROMs? If you flash Oreo ROMs and you want to downgrade flashing fastboot rom maybe you lost volte.
RokCruz said:
From your link the last 2 ROMs are the same so you can use both.
You are on stock right? Do you planning on flashing custom ROMs? If you flash Oreo ROMs and you want to downgrade flashing fastboot rom maybe you lost volte.
Click to expand...
Click to collapse
Right now I'm on stock NPNS25.137-92-4, with TWRP recovery + Magisk root + ElementalX kernel
I'm not planning to flash any custom ROM for the moment. When the official Oreo update comes out, I want to update. But I know it won't go well if I OTA update it with my current configuration. That's why I want to be able to flash stock with fastboot (rough clean install), no matter what version I get : All i want is to be able to update to Oreo when it's out. Problem is, I don't know which image I need to download from here : https://firmware.center/firmware/Motorola/Moto G5 Plus/Stock/
I know it's there, but don't know exactly the good version.
This is for our device xt1681
https://firmware.center/firmware/Mo...ubsidy-DEFAULT_regulatory-DEFAULT_CFC.xml.zip
I'm on flashable stock with ex kernel and magisk, when the Oreo ota start rolling out I'll wait for flashable rom so I'll can upgrade (dirty flash) so I don't loose anything.
RokCruz said:
This is for our device xt1681
https://firmware.center/firmware/Mo...ubsidy-DEFAULT_regulatory-DEFAULT_CFC.xml.zip
I'm on flashable stock with ex kernel and magisk, when the Oreo ota start rolling out I'll wait for flashable rom so I'll can upgrade (dirty flash) so I don't loose anything.
Click to expand...
Click to collapse
If your device was flashed with stock firmware newer than NPN25.137-15, I would strongly advise against flashing the NPN25.137-15 stock firmware.
The reason is that downgrading stock firmware downgrades your system, but not usually your bootloader (your bootloader will likely report a security downgrade/pre-flash validation error). As such, you'll have a newer bootloader but older system (in terms of patch levels). For example, you have the NPNS25.137-92-4 stock firmware (before flashing TWRP), so your bootloader is the Jan 2018 patch level. You flash this NPN25.137-15 firmware - you have a Jan 2017 system, but still a Jan 2018 bootloader.
The downgrade generally goes okay. However, taking OTA updates with this mismatch in bootloader and system is generally what results in hard bricks; the OTA update checks for your system patch level - in the above example, you'll probably get the OTA update to upgrade from NPN25.137-15... However, your bootloader is not the NPN25.137-15 patch level bootloader, as such your bootloader may get overwritten by the OTA and gets corrupted in the process, leading to hard bricks. This scenario isn't just applicable for the NPN25.137-15 update, this potentially applies if you flash a stock firmware older than what was on your device and then attempt to use OTA updates (unless you could flash the stock firmware directly preceding the firmware you had).
Easiest way is to re-flash the same stock ROM build you had before flashing TWRP. I don't see any NPNS25.137-92-4 stock ROMs leaked yet from the Motorola Firmware Team page https://androidfilehost.com/?a=show&w=files&flid=171014 or firmware.mirror but hopefully they'll be along soon.
If you're on stock NPNS25.137-92-4, in theory you could flash NPN25.137-92 (the build directly before the NPNS25.137-92-4 Jan 2018 security update), so the next OTA update would update your device to NPNS25.137-92-4 - the OTA would be simply patching your device to the same build it's currently on and in theory that should work. NPN25.137-92 is one of the firmwares currently available so may be worth thinking about. Best thing though is to flash the NPNS25.137-92-4 firmware or newer firmware that is the correct build for XT1681 devices.
echo92 said:
If your device was flashed with stock firmware newer than NPN25.137-15, I would strongly advise against flashing the NPN25.137-15 stock firmware.
The reason is that downgrading stock firmware downgrades your system, but not usually your bootloader (your bootloader will likely report a security downgrade/pre-flash validation error). As such, you'll have a newer bootloader but older system (in terms of patch levels). For example, you have the NPNS25.137-92-4 stock firmware (before flashing TWRP), so your bootloader is the Jan 2018 patch level. You flash this NPN25.137-15 firmware - you have a Jan 2017 system, but still a Jan 2018 bootloader.
The downgrade generally goes okay. However, taking OTA updates with this mismatch in bootloader and system is generally what results in hard bricks; the OTA update checks for your system patch level - in the above example, you'll probably get the OTA update to upgrade from NPN25.137-15... However, your bootloader is not the NPN25.137-15 patch level bootloader, as such your bootloader may get overwritten by the OTA and gets corrupted in the process, leading to hard bricks. This scenario isn't just applicable for the NPN25.137-15 update, this potentially applies if you flash a stock firmware older than what was on your device and then attempt to use OTA updates (unless you could flash the stock firmware directly preceding the firmware you had).
Easiest way is to re-flash the same stock ROM build you had before flashing TWRP. I don't see any NPNS25.137-92-4 stock ROMs leaked yet from the Motorola Firmware Team page https://androidfilehost.com/?a=show&w=files&flid=171014 or firmware.mirror but hopefully they'll be along soon.
If you're on stock NPNS25.137-92-4, in theory you could flash NPN25.137-92 (the build directly before the NPNS25.137-92-4 Jan 2018 security update), so the next OTA update would update your device to NPNS25.137-92-4 - the OTA would be simply patching your device to the same build it's currently on and in theory that should work. NPN25.137-92 is one of the firmwares currently available so may be worth thinking about. Best thing though is to flash the NPNS25.137-92-4 firmware or newer firmware that is the correct build for XT1681 devices.
Click to expand...
Click to collapse
In few words we only can flash ROMs with the same compilation number or higher to avoid hard brick right?
RokCruz said:
In few words we only can flash ROMs with the same compilation number or higher to avoid hard brick right?
Click to expand...
Click to collapse
Pretty much, yes (or at least it minimises the chances of a hard brick). If you really want to flash older stock ROMs, please do not use OTA updates at all. Ignore the OTA prompt or freeze the Motorola OTA updater if you downgraded your stock firmware. It's not fun seeing a £150-200 (or your regional equivalent) device hard bricked.
However, with Motorola's habit of releasing different builds to different regions, please ensure you flash the correct build for your device, else the Motorola servers may not issue OTAs if you're on the incorrect series of builds for your software channel. The latest available leaked firmware for your device appears to be NPN25.137-92 (we don't have access to NPNS25.137-92-4 yet).
echo92 said:
Pretty much, yes (or at least it minimises the chances of a hard brick). If you really want to flash older stock ROMs, please do not use OTA updates at all. Ignore the OTA prompt or freeze the Motorola OTA updater if you downgraded your stock firmware. It's not fun seeing a £150-200 (or your regional equivalent) device hard bricked.
However, with Motorola's habit of releasing different builds to different regions, please ensure you flash the correct build for your device, else the Motorola servers may not issue OTAs if you're on the incorrect series of builds for your software channel. The latest available leaked firmware for your device appears to be NPN25.137-92 (we don't have access to NPNS25.137-92-4 yet).
Click to expand...
Click to collapse
That was roughly what I figured out but damn, those explanations, thanks buddy :highfive:
The January update's bootloader is the same bootloader that the November security patch update has. You can flash the
POTTER_NPN25.137-83_cid50_subsidy-DEFAULT_regulatory-DEFAULT_CFC files from fastboot (skip gpt.bin) then OTA to 93 (November Patch), then OTA to 93-4 (January Patch)
The OTA will not brick the phone since the bootloader the OTA flashes is the same one it is currently on.
Also, this is what I did to get onto the January Patch so I can confirm my phone works fine and did not brick.
driverdis said:
The January update's bootloader is the same bootloader that the November security patch update has. You can flash the
POTTER_NPN25.137-83_cid50_subsidy-DEFAULT_regulatory-DEFAULT_CFC files from fastboot (skip gpt.bin) then OTA to 93 (November Patch), then OTA to 93-4 (January Patch)
The OTA will not brick the phone since the bootloader the OTA flashes is the same one it is currently on.
Also, this is what I did to get onto the January Patch so I can confirm my phone works fine and did not brick.
Click to expand...
Click to collapse
On xt1681 right?
Thanks for your feedback
echo92 said:
Pretty much, yes (or at least it minimises the chances of a hard brick). If you really want to flash older stock ROMs, please do not use OTA updates at all. Ignore the OTA prompt or freeze the Motorola OTA updater if you downgraded your stock firmware. It's not fun seeing a £150-200 (or your regional equivalent) device hard bricked.
However, with Motorola's habit of releasing different builds to different regions, please ensure you flash the correct build for your device, else the Motorola servers may not issue OTAs if you're on the incorrect series of builds for your software channel. The latest available leaked firmware for your device appears to be NPN25.137-92 (we don't have access to NPNS25.137-92-4 yet).
Click to expand...
Click to collapse
yeah i cant apply normal OTA over flashable rom. I was on NPN25.137-92(flashable) i download NPNS25.137-92-4(flashable too) i dirty flashed it and it works perfect without lose my stuff
I ordered XT1681 International version from Amazon.ca. I replaced the recovery with TWRP. I have two questions.
(1) I am prompted to install 137-92-8 via OTA. Where can I find this TWRP flashable ROM for this version ? I am on 137-92-4.
(2) Is there any other compatible stock ROM that I can install on it ? The OTA message is in Spanish. My preference is in English and as long as it supports the dual SIM and the NIC.
Thanks.
jkl555 said:
I ordered XT1681 International version from Amazon.ca. I replaced the recovery with TWRP. I have two questions.
(1) I am prompted to install 137-92-8 via OTA. Where can I find this TWRP flashable ROM for this version ? I am on 137-92-4.
(2) Is there any other compatible stock ROM that I can install on it ? The OTA message is in Spanish. My preference is in English and as long as it supports the dual SIM and the NIC.
Thanks.
Click to expand...
Click to collapse
Just to reply to myself for (2). I found the following link
https://www.stockrom.net/2017/05/st...g5-plus-xt1683-xt1681-android-7-0-nougat.html

N910TUVU2EQI2 - Anyone have TWRP-flashable modem/bootloader *only* files?

I believe the N910TUVU2EQI2 is latest (October 2017) firmware... I'd like to update my firmware but leave the custom Marshmallow version (ApocalypseX) I have on the phone. A TWRP-flashable of this update - onlly the firmware - would be great.
I don't know if you're still looking for them, but I think these are what you want?
https://forum.xda-developers.com/showpost.php?p=74271816&postcount=6
I was looking for the same thing, but T3.
Oh my bad. I haven't flashed anything in a long time, and didn't realize TWRP and Odin flashing are 2 different things.

Older G935V to newer G935U?

Ok so I rooted my Verizon phone 2 years ago and I'm still running 6.0.1 with G935VVRU2APE1, the security patch level is from June 1, 2016, yes I'm wayyy behind. I'd like to go to Nougat or Oreo if possible with a fresh start/data wipe. Not concerned with root atm.
Where do I start? I've read through a lot of forum pages but no one has a build as old as mine it seems. According to updato.com/firmware-archive-select-model?q=SM-G935v (can't post proper link) the latest build for 6.0.1 is G935VVRU4API3. Can I go from APE1 to API3 without issue following "{GUIDE} Flashing the SM-935U firmware onto your Verizon S7 Edge and Rooting" or does it have to be a certain prior version?
From there will an OTA update or an official stock odin file get me to Nougat/Oreo? Thank you in advance!
I did upgrade my 6.0.1 V to 7.0 U. From there I got the OTA updates/upgrades to Oreo. You can get them faster if you use SmartSwitch on PC and phone.
SoNic67 said:
I did upgrade my 6.0.1 V to 7.0 U. From there I got the OTA updates/upgrades to Oreo. You can get them faster if you use SmartSwitch on PC and phone.
Click to expand...
Click to collapse
Thanks for the reply. So do I go from my current build to the latest 6.0.1 (API3) or just go straight to the latest 7.0?
I would say you have to go to an official one first, using Odin.

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