downgrade j730f - Samsung Galaxy J7 (2017) Questions & Answers

hello every body
i have a j730f with J730FXWU3BRJ2 Firwmware , which i updated it by myself , now i want to root my phone , as it seems its difficult to root android 8.1 , i decided to downgrade it again !!
so : is the firmware version J730FXWS3ARI7 have no problem for downgrade , my bootloader version is u3b now , can it turn into s3a ?? does these two are version 3 or they are diffrent ??
OR , how can i root my phone instead of downgrade ??
thanx

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Hi fellow J5'ers
I'd like to upgrade my J5 to Mashmallow for two reasons :
- All other devices I use are running that version already .....
- I saw the adoptable Storage Hack which sounds great to me
But I have to admit that I'm slightly lost with all the differen Versions of the J5 out there
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CP : J500FXWU1AOJ2
CSC : J500FOXX1AOJ1
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Garfield1970 said:
Hi fellow J5'ers
I'd like to upgrade my J5 to Mashmallow for two reasons :
- All other devices I use are running that version already .....
- I saw the adoptable Storage Hack which sounds great to me
But I have to admit that I'm slightly lost with all the differen Versions of the J5 out there
My phone is a J5 Duos ( 2015 Model )
AP : J500FXWU1AOJ2
CP : J500FXWU1AOJ2
CSC : J500FOXX1AOJ1
Model : SM-J500F/DS
Android Version 5.1.1 ( rooted )
TWRP Recovery 3.0.2-0
On Sammobiles , I find lots of different original 6.0.1 Images for the J500F and the F500FN , but I see no DS anywhere
I have have no clue ( and haven't found found the info here ) how I should proceed exactly to keep my device rooted and not brick it on the way
So please .... excuse my stupidity , any help is welcome !
Click to expand...
Click to collapse
Hello!
I think you'll be ok by flashing J500F firmware. The stock rom should have files included for dual sim.
A Google search doesn't bring any results for J500F/DS firmware.
You should be fine by flashing J500F firmware.

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