Is it possible to downgrade the security version? - Moto G5 Plus Questions & Answers

hello, is it possible to install the ROM -15, when I already have the -92? When flashing it by fastboot, it does not allow me.

Nope.

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running latest bootloader/modem question

Hi guys
searched the forums but cannot find the answer.
I have a 935f and its running the latest bootloader and modem from november. i just got this phone and have rooted and installed TWRP, when i am looking at custom roms like superman and renovate, it tells me to "update" my bootloader and modem to octobers version for superman or septembers version for renovate.
obviously i a running a later version than both of these, am i ok to flash the rom without doing anything or do i need to downgrade my bootloader then flash?
if i downgrade will i have to root and install TERP again plase?
thanks in advance for the help

[Q] Re-lock the bootloader with OTA?

Hi, i have a xt1621 non plus, i've unlocked for rooting Marshmallow, but now i have the Nougat Stock rom 25.93.14-4 via stock recovery. I've read in other threads that i need the latest stock rom for my device to re-lock the bootloader. I can't find the rom.
Now, when i downgrade to Marshmallow, the update to Nougat 25.93.14-14 appears, but is possible to re-lock with the OTA update?
Regards.
3Rick99 said:
Hi, i have a xt1621 non plus, i've unlocked for rooting Marshmallow, but now i have the Nougat Stock rom 25.93.14-4 via stock recovery. I've read in other threads that i need the latest stock rom for my device to re-lock the bootloader. I can't find the rom.
Now, when i downgrade to Marshmallow, the update to Nougat 25.93.14-14 appears, but is possible to re-lock with the OTA update?
Regards.
Click to expand...
Click to collapse
No, you need to flash the images via fastboot and then run the lock command. There are explicit instructions on this forum.
negusp said:
No, you need to flash the images via fastboot and then run the lock command. There are explicit instructions on this forum.
Click to expand...
Click to collapse
Thanks for the reply, I'll have to wait for the stock rom release. :good:

Bootloader and modem question

How do I know which bootloader do I have? I'm currently running build B35.
Can someone direct me to a thread how to flash universal bootloader and modem?
If I use bkores flash toolkit, it said you have to flash universal bootloader, modem along with Rom and Gapps but in which order?
If using twrp for future flash do I need to flash universal bootloader and modem every time I switch ROM?
I'm not an expert but here's what I understand.
1. You don't have to worry which version you have unless you're flashing a custom ROM, usually for Nougat you want the B15 and for Oreo you want the B35.
2.Universal Bootloader>Modem>ROM>GApps>Magisk/SuperSU
3.You only need to flash it once if you're switching ROMs with the same android version.
Nicz14 said:
I'm not an expert but here's what I understand.
1. You don't have to worry which version you have unless you're flashing a custom ROM, usually for Nougat you want the B15 and for Oreo you want the B35.
2.Universal Bootloader>Modem>ROM>GApps>Magisk/SuperSU
3.You only need to flash it once if you're switching ROMs with the same android version.
Click to expand...
Click to collapse
Thank you for the reply.
I'm on Android 7.1.1 with build B35.
I want to flash a custom ROM.
vic_singh said:
Thank you for the reply.
I'm on Android 7.1.1 with build B35.
I want to flash a custom ROM.
Click to expand...
Click to collapse
If you haven't you need to unlock your bootloader before you can start flashing custom ROM. You can find a guide on how to do it here.

Custom rom downgrade

Hello,
I wonder if it's possible to flash a marshmallow Rom directly from Oreo with twrp? Is it possible or the boot loader will create some issue?
Thank
Flashby said:
Hello,
I wonder if it's possible to flash a marshmallow Rom directly from Oreo with twrp? Is it possible or the boot loader will create some issue?
Thank
Click to expand...
Click to collapse
bootloader will create an issue. marshmallow is long gone my friend unless you have some older devices that were rooted and had TWRP installed prior to the bootloader upgrade was issued
Ok sad

Changing bootloader without PC

Hello, is there a way to change bootloader on Galaxy J5 without PC?
Do you have a custom recovery installed?
yes
What do you mean by change?
Do you want to lock/unlock it, reflash it or just update it?
downgrade it to 5.1.1
Get the official stock ROM for that Android version for your phone or get a custom ROM with the same android version.
You can change the bootloader with the computer
Or use custom ROMs

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