Question Downgrading the bootloader? - Redmi Note 11 (spes/spesn)

Hi! To cut a long story short, is it possible to downgrade the bootloader? I've heard that when you use the command
Code:
fastboot flashing unlock_critical
you can flash low-level firmware partitions like the bootloader, would anyone care to elaborate?​

Don't know much bout that, but I'd suggest you stay as far away if from it as possible.

What do you need it for?

Related

[Q] Rooting After S-off

All thanks to Revolutionary I have my One s-off. Now i want to install a custom Recovery and get root access. I would like to know the steps.
I have been trying to find out the procedures but looks like a lot of reading has confused me.
Pranay Kamdar said:
All thanks to Revolutionary I have my One s-off. Now i want to install a custom Recovery and get root access. I would like to know the steps.
I have been trying to find out the procedures but looks like a lot of reading has confused me.
Click to expand...
Click to collapse
Just follow the normal guides that are already on here...the process is the same. You might also have to use Revolutionary to unlock the bootloader to flash the recovery image, tho
EddyOS said:
Just follow the normal guides that are already on here...the process is the same. You might also have to use Revolutionary to unlock the bootloader to flash the recovery image, tho
Click to expand...
Click to collapse
Do i have to use any diff command for unlocking bootloader? I did -s O -u comand in ADB. Hope that unlocked my boot loader. or is there a way to know if its unlocked or not?
if its unlocked i flash recovery and it gets rooted?
Sorry m a bit too confused after reading so much. Just dont wanna lose my handset so being a bit safe.
Pranay Kamdar said:
Do i have to use any diff command for unlocking bootloader? I did -s O -u comand in ADB. Hope that unlocked my boot loader. or is there a way to know if its unlocked or not?
if its unlocked i flash recovery and it gets rooted?
Sorry m a bit too confused after reading so much. Just dont wanna lose my handset so being a bit safe.
Click to expand...
Click to collapse
To check just boot Hboot and if you see "UNLOCKED" at the toof the screen you should have root permissions. To flash a custom recovery you can use the Toolkit you find under Development section of the forum or simply through fastboot with " fastboot flash recovery (recoveryname)". Eg if your recovery is called " CWM5.img" the command is " fastboot flash recovery CWM5.img". Then from your custom recovery you can flash custom rims
Inviato dal mio HTC One con Tapatalk 2

[Q] Bootloader Unlock method(s)?

I doubt this will get a reply but what's the best method for unlocking the Bootloader on the G1, HTC's official method or flashing a new Bootloader? (read it somewhere)
If you use HTCs method you will need to fastboot flash a new kernel after any ROM change, really a big pain in the butt
I would say use the tried and true methods of downgrading, exploiting, and then flash away to hearts content

relock bootloader

anyone know how i can relock the bootloader and re-enable FRP?
is it basically flashing the stock firmware from HuRupdater.zip in twrp
then rebooting into bootloader and issue the relock command
then in boot disable OEM-Unlock?
Hey did you manage to do this?
Anyone manage to do this ? I just unlock my bootlader but havent done anything yet.
virtyx said:
anyone know how i can relock the bootloader and re-enable FRP?
is it basically flashing the stock firmware from HuRupdater.zip in twrp
then rebooting into bootloader and issue the relock command
then in boot disable OEM-Unlock?
Click to expand...
Click to collapse
Did you ever found this out? I want to unlock the bootloader, but only if I can relock it, because if it's unlocked, the sale value drops. Let me know please =D
Without knowing if it's possible I wouldn't risk it, who knows if Huawei doesn't allow it and you're going to end up with a bricked phone.

How to COMPLETELY unlock the Bootloader?

Hello, how do I completely unlock the bootloader?
When I try to do "fastboot erase recovery/boot/system" for example - it tells me that I am not allowed to.
I unlocked the bootloader so why did I get a partial unlock?
ThisIsRussia said:
Hello, how do I completely unlock the bootloader?
When I try to do "fastboot erase recovery/boot/system" for example - it tells me that I am not allowed to.
I unlocked the bootloader so why did I get a partial unlock?
Click to expand...
Click to collapse
Why would you want to erase any of those in fastboot? Are you trying to flash a custom ROM or something? Why not use TWRP instead? Unless you're trying to flash a GSI, in which case I've never seen anyone suggest erasing anything other than userdata, or maybe system, in fastboot.
Are you purposely trying to brick your device?
If you used an unlock code to unlock your bootloader, then it fully unlocked. However, there are still limitations. For instance, you cannot downgrade the bootloader after upgrading to Pie.
If you want another recovery, just flash another recovery. If you need to flash another boot.img, then just flash it. I can't think of any valid reason to do what you're trying to do.
---------- Post added at 11:56 AM ---------- Previous post was at 11:50 AM ----------
ThisIsRussia said:
Yeah, sorry I was a little upset because they are always responding with phrases like "soon it will be updated" etc.
Since February. Its May now.
I just don't use Motorola phones anymore and if someone asked me for opinion I didn't recommend Motorola/Lenovo.
They are a bunch of liars. period.
Click to expand...
Click to collapse
If you're not using Motorola phones anymore, then why are you worried about modifying one?
If you're so distraught over the experience, just get another phone and move on.
ThisIsRussia said:
Hello, how do I completely unlock the bootloader?
When I try to do "fastboot erase recovery/boot/system" for example - it tells me that I am not allowed to.
I unlocked the bootloader so why did I get a partial unlock?
Click to expand...
Click to collapse
It's either unlocked or not. There is no partial unlock. Why are you trying to erase recovery? Or boot? You simply flash over those. You're attempting things that will for sure brick that phone. Maybe that's why the bootloader doesn't allow it.

Impossible to re-lock bootloader?

Hi there,
I'm currently trying to re-lock the bootloader of my Xperia XZ1C. I already flashed to stock firmware.
Like some people have issues to unlock the bootloader (https://forum.xda-developers.com/t/sony-xperia-xz1-sov36-bootloader-unlock-issuae-issue.4182675/), FlashTool fails the same way for me to re-lock.
As soon as I start BLU, the tool fails with ERROR-Cannot invoke "String.split(String)" because the return value of "java.util.Properties.getProperty(String)" is null.
fastboot oem lock does not work either (unknown command).
Is there any known way how to re-lock the bootloader?
Thanks in advance!
Reinstall fastboot ADB, install a newer version
[TOOL][Windows][Script]Get & Install Latest Official ADB & Fastboot Drivers
Most ADB-FASTBOOT installers are provided in UPXed .EXE-file format hence it's not transparent what they are internally doing unless you decompile it. So I decided to write the whole thing as a Windows CMD script thus everyone should can read...
forum.xda-developers.com
You cannot re-lock the XZ1c bootloader.
All of the guides for unlocking emphasize that pretty clearly.
f000bar said:
You cannot re-lock the XZ1c bootloader.
All of the guides for unlocking emphasize that pretty clearly.
Click to expand...
Click to collapse
Someone will probably find a way later….
Keno_I said:
Someone will probably find a way later….
Click to expand...
Click to collapse
No, they won't. The phone has been out for many years, and a large number of very smart people have tried.
And if they used an eFuze or something then it's definitely irreversible.
Don't get the person's hopes up with "maybe one day".
For all intents and purposes, the answer is no.
f000bar said:
No, they won't. The phone has been out for many years, and a large number of very smart people have tried.
And if they used an eFuze or something then it's definitely irreversible.
Don't get the person's hopes up with "maybe one day".
For all intents and purposes, the answer is no.
Click to expand...
Click to collapse
So if I started development on finding a way?
Then what shall you say then?
Keno_I said:
So if I started development on finding a way?
Then what shall you say then?
Click to expand...
Click to collapse
You're kidding, right? If you started _exploring_ whether there was a way, then until you solve the problem, it's still not possible until you actually do it.
Your attempts don't change that, though we could potentially say "you can't right now, but some folks are working on trying."
if I tell you I'm trying to build a time machine, does that mean time travel is possible? Of course not. That only changes when it's successful.

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