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N910H 5.1.1 BL and modem request + 6.0.1 to 5.1.1 downgrade Q

Hi
i want to downgrade from 6.0.1 (official via OTA) to 5.1.1 so i downloaded an official firmware from sammobile for 5.1.1 to flash with Odin but i need a BL and a modem to flash with Odin too if someone can provide
by the way i have a N910H and i am not rooted
some steps to follow will be appreciated
thanks

How To Update Lolipop Bootloader to Marshmallow SM-G900F?

I am trying to update my bootloader from Lollipop G900FXXUU1BOD3 on my galaxy s5 using ODIN V3.12.3, to MARSHMALLOW Bootloader so I can flash a MM rom - Where do I find a bootloader and modem that will work with my device on mm in the UK?

sammobile will have the Marshmallow firmware which includes bootloader and modem. Flash that to be on stock unrooted marshmallow. You will lose your custom recovery if you had one before and will need to flash a new one.
If for whatever reason you want only the bootloader and modem - they can be extracted from the zip file via winrar.

Which firmware i can downgrade from 930u lastest firmware ?

I'm on 930u lastest firmware, now i want to downgrade to official firmware to get nougat update,
i'm new user and don't know which firmware i can downgrade, pls help me
thank first

L21C432B160 root and upgrade

Hi!
I have L21C432B160 stock android 6.0 but are thinking to upgrade 7.0. Should I root first with this toolkit or upgrade to 7.0 first with firmware finder? Also what firmware do I have to install to not brick my phone?
Thanks!

SM-G950F Downgrade Bootloader U5 to U1 (9 pie to 7 Nougat stock)

Hi to all, i have S8 G950F, updated with odin with G950FXXU5DSFB_G950FOXM5DSFB_ITV (U5 bootloader).
So i must return to Nougat ( 7.0) : G950FXXU1AQK7_G950FOXM1AQK7_ITV U1 bootloader
but odin failed because samsung blocked downgrade firmware.
So now what i can do for install Nougat 7.0 ? it 's possibile install tswrp with no root and flash with odin 7.0 ? which version i can use?
thanks

farohp said:
Hi to all, i have S8 G950F, updated with odin with G950FXXU5DSFB_G950FOXM5DSFB_ITV (U5 bootloader).
So i must return to Nougat ( 7.0) : G950FXXU1AQK7_G950FOXM1AQK7_ITV U1 bootloader
but odin failed because samsung blocked downgrade firmware.
So now what i can do for install Nougat 7.0 ? it 's possibile install tswrp with no root and flash with odin 7.0 ? which version i can use?
thanks
Click to expand...
Click to collapse
Some people say downgrading bootloader can be possible through combination file ect but if u never use that file then don't, u can do more harm then good.
Otherwise no bootloader can't be downgraded and your stuck with pie

Search Search Search! Don't be stupid, Samsung bootloader nowaday cannot be downgrade (e.g from U5->U4)...the security check will not pass nor flashing is not possible!