Xiaomi 9t/K20 fastboot - General Questions and Answers

Hey XDA,
I was trying to flash twrp onto my Xiaomi 9t and it came up with "permission denied" ,i was using powershell. How can i fix this ? if not then is there a way to flash TWRP without root or adb?
BTW bootloader is unlocked

Related

Soft brick my mi note 3 device

my phone recently update miui 10 latest official global beta rom with android oreo 8.1.. and its already unlocked bootloader. then i'm going to install twrp with droid toolkit on fastboot mode then my phone suck and till now suck only showing mi logo.... then i trying to flash same rom i present used fastboot rom with mi flash tool but its Error Flash XBL Error..
so what can i do?:crying:
Use fastboot and flash the original xiaomi rom or the dev rom at xiaomi website
HeartEngineer said:
my phone recently update miui 10 latest official global beta rom with android oreo 8.1.. and its already unlocked bootloader. then i'm going to install twrp with droid toolkit on fastboot mode then my phone suck and till now suck only showing mi logo.... then i trying to flash same rom i present used fastboot rom with mi flash tool but its Error Flash XBL Error..
so what can i do?:crying:
Click to expand...
Click to collapse
Doid you unlock bootloader? maybe you has fake custom rom, and to fke custom rom with locked bootlaoder you try to install TWRP?

relock bootloader but no OS help please

hello,
i did unlock the bootloader for my zenfone 7 pro
and installed twrp recovery then rooted via magisk
cuz I wanted voLTE but it didn't work for me so I wanted to be back to stock
I relock the phone using fastboot command
fastboot oem asus-lock
it did relock my phone
but there is no OS nor Recovery !
when I power my phone on the fastboot UI appears. even if I select recovery nothing changes. opens fastboot only
how to re install the firmware ? help plz
in case anyone has the same problem.
i did solve it by flashing the (raw) firmware via fastboot ( Flash_AFT method )
M-772007 said:
hello,
i did unlock the bootloader for my zenfone 7 pro
and installed twrp recovery then rooted via magisk
cuz I wanted voLTE but it didn't work for me so I wanted to be back to stock
I relock the phone using fastboot command
fastboot oem asus-lock
it did relock my phone
but there is no OS nor Recovery !
when I power my phone on the fastboot UI appears. even if I select recovery nothing changes. opens fastboot only
how to re install the firmware ? help plz
Click to expand...
Click to collapse
There are new guides on how to get volte if you want to try again.
[Guide] Easy method to Enable Volte (with root) on Tmobile and maybe other networks on Android 11 and maybe 10
So first you have to root. I used twrp and magisk. There are guides on how to do that you can find by searching around. Then once you do that, follow these directions, What I did was manually entered all of these setprop commands below, on the...
forum.xda-developers.com
This is one but there are others if you need the help.
After relock bootloader i can send phone to warranty?
I tried to relock the phone with the command "fastboot oem asus-lock", but it shows "waitting for any device" and my phone just sit there and do nothing..
Any other method to relock the Zenfone 7 pro?
M-772007 said:
hello,
i did unlock the bootloader for my zenfone 7 pro
and installed twrp recovery then rooted via magisk
cuz I wanted voLTE but it didn't work for me so I wanted to be back to stock
I relock the phone using fastboot command
fastboot oem asus-lock
it did relock my phone
but there is no OS nor Recovery !
when I power my phone on the fastboot UI appears. even if I select recovery nothing changes. opens fastboot only
how to re install the firmware ? help plz
Click to expand...
Click to collapse
I believe that relock is impossible and but to make the device recovery to installed status of stock rom keeping with unlock bootloader.
Please see my post. May make it help or not.
When I try to burn rom with TWRP, img burns but it doesn't start and zip gives an error and cannot burn.
When I first burned custom ROM (unofficial AEX), it did not start, so when I deleted the data from TWRP, it seems that I deleted things that should not be erased, so even if I burn it from the zip file, with the error message in the image below I...
forum.xda-developers.com

Bricked Xiaomi 12X Locked Bootloader Only Fastboot

Hi guys, my friend got a new Xiaomi 12X and while trying to flash a global rom he bricked the phone into fastboot mode only.
We can't flash a new rom through MiFlash because it says that the device is locked. We can't boot into the system anymore to do the unlock process. No access to recovery mode, FASTBOOT ONLY.
How can we proceed? I know that there's probably some way to do this without unlocking, china sellers from AliExpress and stores like that do this every day to change from china to global ROMs.
I found this tool, but it's paid, anyone knows if it works? Mod Edit: Link Removed
You're looking for the fastboot rom, specifically, available on the offical website and on one of these forums. That's the one you can push from fastboot on your PC
the other methods won't work while its stuck in fastboot
https://forum.xda-developers.com/f/xiaomi-poco-f3-xiaomi-mi-11x-redmi-k40.12161
you need patched firehose for the Poco F3. so go in that forum and search for "firehose"

Question Allow oem unlocking option missing in developer options

So, i recently flashed arrow os 12.1 on my poco x4 pro (veux) using twrp. Flashing the rom removed twrp and now i cant flash it back because fastboot says that my bootloader is locked...
Of course, it isn't and the problem is that allow oem unlocking isn't on... I really would appreciate some help because i've been stuck on this rom for a day.
Gonna wait for some answers, thank you.
In the first place, flashing the rom shouldn't relock your bootloader. Can you please reboot to fastboot mode and use mi unlock tool with the same account you used to unlock bootloader first time.
Soma Das said:
In the first place, flashing the rom shouldn't relock your bootloader. Can you please reboot to fastboot mode and use mi unlock tool with the same account you used to unlock bootloader first time.
Click to expand...
Click to collapse
Thank you for your response. Sadly i already tried that and the tool says that the phone is unlocked.
I'm trying to reflash stock rom via EDL mode, but i always get some error.
By the way, when using fastboot getvar command, it says that my bootloader is locked.
So, i recently bought a poco x4 pro (veux) and flashed a custom rom using twrp. Sadly, the rom's recovery managed to overwrite twrp and when i tried to flash twrp back, i could not flash it because fastboot said my bootloader wasn't unlocked. When i tried to unlock the phone again the xiaomi tool said that the bootloader was already unlocked. So, i used the getvar command which said that my bootloader was locked. So, i remembered that i didnt turn on allow oem unlocking in developer options. Sadly, when i looked for it the setting wasn't there. I tried using Edl mode to go back to stock but with no success. I always get some failed to read hello packet error. Can someone give me any help? Im kinda getting desperate...
WhyisAethertaken said:
So, i recently bought a poco x4 pro (veux) and flashed a custom rom using twrp. Sadly, the rom's recovery managed to overwrite twrp and when i tried to flash twrp back, i could not flash it because fastboot said my bootloader wasn't unlocked. When i tried to unlock the phone again the xiaomi tool said that the bootloader was already unlocked. So, i used the getvar command which said that my bootloader was locked. So, i remembered that i didnt turn on allow oem unlocking in developer options. Sadly, when i looked for it the setting wasn't there. I tried using Edl mode to go back to stock but with no success. I always get some failed to read hello packet error. Can someone give me any help? Im kinda getting desperate...
Click to expand...
Click to collapse
Go to service centre if it is critical. I have never seen such case so i couldn't help. I am afraid that you would have to pay the service centre people money for reflashing your device.
Also have you tried flashing fastboot ROM (MIUI) through fastboot? Also try to flash stock recovery rom via the recovery you have now currently.
Another thing you could try is using the Xiaomi official flashing utility (which is not unlock tool) to flash stock rom which does not require OEM unlock.
Soma Das said:
Go to service centre if it is critical. I have never seen such case so i couldn't help. I am afraid that you would have to pay the service centre people money for reflashing your device.
Also have you tried flashing fastboot ROM (MIUI) through fastboot? Also try to flash stock recovery rom via the recovery you have now currently.
Another thing you could try is using the Xiaomi official flashing utility (which is not unlock tool) to flash stock rom which does not require OEM unlock.
Click to expand...
Click to collapse
Thanks for the reply, i will try what you said.

How to install TWRP without Bootloader unlocking?

Is there any way to install TWRP without unlocking the bootloader?
I found a thread here for Poco https://forum.xda-developers.com/t/how-to-install-twrp-without-bootloader-unlocking.3862454/
when I did this to my pixel 3, whenever I'm trying the command adb reboot edl my phone keep switching off.
can anyone find me a solution for this??
Thanks in advance

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