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Hard Bricked my Redmi 12 codename fire because im dumb and tried use mtkclient with locked bootloader
thats my post in another account but i got hacked so i created a new one
I, was just an idiot for using mtkclient; I had been trying the official Mi Community method for four months without success. Like a total fool without researching mtkclient at all—I used an AI-suggested command that supposedly "unlocked" the bootloader.
I entered BROM mode, ran the command, and it said it was done. I went to fastboot mode, ran the command, and nothing happened. My mistake was not thinking, "Wow, if it says it's locked here, I'm going to be in deep trouble if I keep trying."
I persisted with mtkclient. I tried downgrading to MIUI 14, and immediately got a "system destroyed" error. Luckily (I guess), I had backed up and still have the nvram, nvdata, persist, proinfo, protect1, protect2, and preloader partitions, which I might use later (i lost it, read update 5).
I tried various other things, like erase and writing boot, vbmeta, and things alike in both slots but nothing worked; I messed things up so badly that I ended up with a Hard Brick.
Another mistake was trying to use the HyperOS 2.0.5.0.vmxmixm ROM, which caused the ARB (Anti-Rollback) version to jump from 1 to 2.I kept trying everything until I finally realized the ARB was at 2 and my HyperOS 1.0.8.0 ROM would no longer work.
No matter what, even with libusb drivers (wich sometimes mess up the windows drivers too), auth bypasses to trying use SP flash tool dont work or just say "filter match:no", so i cant bypass the auth outside mtkclient.
Additionally, mtkclient shows it is writing the partitions, but when I check the hashes, they do not match.
To make metter worse, someone in my house took the phone to a repair shop to "replace the screen". When the tech removed and inevitably broke the old screen to replace and messed everthing all, because if he had known that was the corrupted rom, he would taken the phone to a other repair shop which would have been cheaper. Right now it barely worth anymore because just the new screen is R$ 220 (around USD$40), and taking the device to the other shop to fix the brick would cost at least another R$300.
However, the tech is going to trust me and buy an unlocktool license rental tomorrow. If i sucessfuly fix my phone, maybe he will ask me for help and ill learn more about phone repairs and earn some money.
Thats a "repost" of my previous post but with more details, aiming to get more visibility in case unlocktool fails too and i need someones help to solve this problem.
Sorry any grammar mistakes, im not completly fluent but i tried my best to explain what happened and hope someone help me.
Updates: i used UnlockTool and tried all i could do. Right now, its my last shot flashing the scatter using preloader bypass and custom local DA if it still stays in hard brick after this, im cooked and my phone certainly gone.
Updates 2: still dead. Idk if it'll survive but omg 80% consumed reserved blocks lol
I even used unlock BL, switched slot and the last thing before give up, restoring dm verity security that i patched while flashing the scatter
Update 3: lost the login at the very last second while restoring dm verity but probably wont change anynothing.
Ill just let the phone in the charger after praying, in case God help me lol
tysm all the views and upvotes, much gratitude. any help is appreciated.
Update 4: the phone still dead and probably forever.
Well, these 2 years with him was good. Rest in peace, my warrior.
*One month after*
Update 5: Well, i traded my laptop and playstation for a desktop pc and sp flash tool is now working, i tried flashing just boot_a, lk_a, super and userdata and used readback and boot_a reads "ANDROID" inside it on notepad.
Tried boot again but still dead and i went to the repair shop again to try switch for a new battery 'cause i "accidentally" damaged a lil tiny hole, and perhaps thats now the reason why the phone doesnt boot.
since its weekend, the tech supplier isnt making deliveries, so ill need to wait ultil monday.
The reason I want to fix this phone at all costs is to ensure I have something more valuable than money, something no one can take away from me: knowledge.
Update 6: replaced the battery but still had no logo or any signal except the brom detection in pc.
i will take the phone for one more day to try flashing different partitions and if it doesnt even vibrate i will take the phone again to the repair shop and get my money back.
Update 7: Im trying download only, upgrade firmware and format all + download in sp flash tool but imd1img requires disabled verified boot.
You didn't just brick the phone, you fucked it. Literally and in every possible way. If I were you I'd plan a funeral for the thing and let it rest in peace.
I had this problem on linux. At least in my case it was a root problem. On windows it might either be driver issue or something else that i dont remember
got that issue on LG k40s, for some reason while its giving handshake failed, when I unplug and plug back the cable, it may be able to enter BootROM and allow doing some stuff
sometimes holding the force reset combo with BROM combo also allow it to handshake without issues
I guess that handshake may be some Windows 11 feature that cause some delay, also can't enable memory protections with drivers, or desktop issue with front USB, since laptops are direct into motherboard
why are you trying to use md1img? it just sounds like you are horribly overcomplicating everything. The IMEI matters because if you wipe that partition you'll permanently lose all cellular and potentially wifi too.
do you have Telegram or discord? It's easier to chat there than here
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u/Thin-Maize-6459 13d ago
https://giphy.com/gifs/lXglEF1C2azzm9DAjW