Downgrading possible - Samsung Galaxy J7 Questions & Answers

i using j701f it works well on custom rom but you now every custom rom have bugs and after some time you need to move to official rom but i want to to downgrade my j701f from u10 to u9 or later.
i have idea if work in anyone Mind!
is this possible to flashing CSC, CP, AP files in Custom recovery (Twrp/OrangeFox)
if possible then we can make zip of specific file from stock rom and then flash in recovery and easily downgrade our system without having trouble !
please help if anyone have idea.

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[REQUEST] 4.3 EU firmware

Hey Guys,
Me and others do really want the 4.3 firmware, but we can't flash it anymore because of the 4.4.4 firmware update. I tried everything to downgrade but no luck.
So I'm looking for a person who do have the 4.3 firmware, with CWM recovery touch, there is an option inside the recovery to create a image zip. So if you guys know someone running XT1032 with 4.3 firmware, ask him to create zip file please We need it...
I have a zip but Stock 4.3 Kernel will not boot with a newer bootloader and there is no way to downgrade it. I posted a request here for a custom kernel which might work:
http://forum.xda-developers.com/showthread.php?p=55307806​

soft brick Gm 920f

Hi i wanted to flash a custom marshmallow rom i was rooted and custom rom already but when i flashed the rom it didnt opened so i tried to flash a stock rom GR from sammyfirmware but it dosnt pass it fail in the start i read somewhere about a fix with the sammy roms that dont pass that you must rename the hidden.img to hidden.img.tar does anyone can help me or has anyone rom with seperate files of csc , modem and etc ...
manouvras said:
Hi i wanted to flash a custom marshmallow rom i was rooted and custom rom already but when i flashed the rom it didnt opened so i tried to flash a stock rom GR from sammyfirmware but it dosnt pass it fail in the start i read somewhere about a fix with the sammy roms that dont pass that you must rename the hidden.img to hidden.img.tar does anyone can help me or has anyone rom with seperate files of csc , modem and etc ...
Click to expand...
Click to collapse
Hi,
What is the exact error you get? Which firmware version you tried from sammobile?
manouvras said:
Hi i wanted to flash a custom marshmallow rom i was rooted and custom rom already but when i flashed the rom it didnt opened so i tried to flash a stock rom GR from sammyfirmware but it dosnt pass it fail in the start i read somewhere about a fix with the sammy roms that dont pass that you must rename the hidden.img to hidden.img.tar does anyone can help me or has anyone rom with seperate files of csc , modem and etc ...
Click to expand...
Click to collapse
ROM didn't opened because it might have got corrupted while downloading try redownloading it, By the way ROM isn't opened its flashed by any custom recovery.......
In case of stock ROM did you tried Odin and flashed the full zip (tar) file ?

Oreo Custom ROMs on Canadian W8 variant - Anyone successful?

Given that the Oreo S7 update has now been delayed, I've been trying to flash a variety of the custom BTU and Note 8 ported ROMs on my Canadian W8 variant. Every single one I've tried will put me into a bootloop or hang at the S7 logo. I feel like I must be doing something wrong and would appreciate any help if possible.
I'm currently using the Superman Nougat ROM v2.5.0
I've tried the following steps:
Doing a full wipe - Reboot to TWRP - Wiping everything except SD - Reboot to TWRP
Installing each ROM either using AROMA or flashing no-verity-opt-encrypt-6.0.zip then installing the zip for the ROM and/or flashing Magisk-v16.4(1642) and/or SuperSUv2.82
I've chosen both updating the bootloader and modem and NOT updating the bootloader and modem, but no difference. I've tried all different combinations above and I've tried flashing stock via ODIN beforehand.
If anyone has had any success with flashing any of the Oreo ROMS out there on the W8, please let me know which ROM you are using and what steps you've taken to flash successfully. It would be greatly appreciated!
Thanks so much!
Updates?
I am running W8 on Alex DevBase ROM 5.8 (WAS running)
I Odin flashed back to Oreo stock tho recently.
Best of luck.
You need to update to oreo with odin first
Just flash stock oreo, install twrp.
After that you gonna be able to use oreo rom.
I'm on superman 3.0.1 right now.
I'm using Resurrection Remix on the W8 S7 right now.
plarouche_78 said:
You need to update to oreo with odin first
Just flash stock oreo, install twrp.
After that you gonna be able to use oreo rom.
I'm on superman 3.0.1 right now.
Click to expand...
Click to collapse
I did flash stock Oreo via Odin (lost root)
I CAN flash TWRP but getting root is where I run into problems. What am I doing wrong?
I did find that Dev OP from Superman posted an updated TWRP specific for Oreo S7 maybe I should try that one?

About "Rom firmware required"

So, this might be a total noob question, but I want to install miui port for my sm-g360h,it says that the "ROM firmware required is stock 4.4 KK" , but I've a lineage 14.1 N installed, will that be a problem?
Also one more thing, is there a difference between "port" and "ROM" ?
20Holmes20 said:
So, this might be a total noob question, but I want to install miui port for my sm-g360h,it says that the "ROM firmware required is stock 4.4 KK" , but I've a lineage 14.1 N installed, will that be a problem?
Also one more thing, is there a difference between "port" and "ROM" ?
Click to expand...
Click to collapse
They are referring to the stock firmware that is still on the device(i.e. modem, bootloader, etc..)
You have LOS 14.1 installed, but that is only the system partition. When you flash a custom ROM, it only flashes the system.img to replace the stock system.img, all of the other parts of your stock firmware are still there "under" the custom ROM.
In your case, the firmware that you have is everything that you had when it was stock, before you flashed a custom ROM. Do you know what stock firmware version you had before you modified the device? If your stock firmware was older than 4.4 then you need to update the firmware to 4.4 then flash TWRP again then your ROM again.
Or, if someone has converted the necessary parts of the 4.4 firmware into a recovery flushable .zip file, you can flash that zip via TWRP then flash your custom ROM.
Sent from my LGL84VL using Tapatalk

Can I unroot my Galaxy S7

Hello guys, I wanna ask can I unroot my Galaxy S7 and bring it back to the original version of Android. I use now Lineage Custom ROM and I am not that satiisfied with it. Thanks everyone.
If you download the stock firmware files from somewhere like sammobile, and flash all 4 files (AP, CSC, CP, BL) that'll be a full stock flash and remove any custom recover or root.
But please note by flashing custom firmware you have tripped Knox, so even after a clean stock flash some Samsung apps will refuse to run.
I also recommend in future that if using custom ROM's you do a TWRP backup before flashing. Which you can restore if you don't like the ROM, or if something goes wrong.

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