Question It 's no signal after I install the global rom into redmi note 9 5G(cn) - Redmi Note 9T

I install the global rom (code cannong) over twrp.
After that It work fine without signal. My phone code is cannon(cn version) ,as somebody suggeted (telegram) ,I flash the md1img.img over the fastboot ,it's loop rebooting. Then I flash the preloader.img ,it get brcik.It's black screen,and couldn't go into the fastboot.So I took it to MIHome...

twrp
the twrp

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Xiaomi Mi 9 SE - This MIUI version can't be installed on this device

I had this MIUI version MIUI Global 11.0.6 | stable 11.0.6.0 (QFBEUXM) received via OTA. But I flashed my phone because the battery draines when it's in standby mode.
I installed the follow rom V11.0.4.0.QFBMIXM (MIUI11) using fastboot Update.
The problem
After installation, I had a mistake when I flash my device using MiFlash, I forgot select clean all instead of clean all and lock.
Now, I get this message: This MIUI version cannot be installed on this device. I tried to reinstall the rom but cannot do it. Now my phone is in an infinite loop.
I bought my device new with bootloader unlocked from Amazon.
I tried to reinstall the rom grus_images_V11.0.3.0.QFBCNXM_20200426.0000.00_10.0_cn_da9b1a6100.tar using EDL Mode but also failed.
Is there any way to get my phone back?
Please, help me.
Thanks!

Urgent help please!!!!

I have whyred (Indian ver.) I was using orange fox recovery latest build. What i did was flashed redmi note 5 Russian recovery rom (whyred ru). The rom flashed correctly, after i set up the rom i went again to recovery to flash havoc os.
Before flashing havoc i flashed 20.6.18 china beta firmware and restarted to recovery again.
Then i selected havoc os it said some error like corrupt or something. then i selected pixel experience, same error popped. Every rom i flashed gave me error.
I was frightened so i rebooted the phone to fastboot and went to mi flash. I didn't noticed it was showing device as com7 instead of serial no.
When i clicked flash it said cannot receive hello packet error.
I've tried every guide available but no luck.
Please help ?.
Now phone is dead and is just showing as com port
Unbricked!!!!!

miflash

i have a note 8T EEA and i update to miui 12
Because batery drain very fast i try downgrade to android 9 miui 11
1-unlock the bootloader
2-flash miui V11.0.3.0.PCXEUXM
I put cable in usb 3.0
After 5minutes the logo fastboot is gone, display turn in black
In miflash connection is lost with phone
https://postimg.cc/yW0TnLJH
i use this tutorial
it was imposible to enter in fastboot again.
I fix the phone in service but they install a global version of firmware
What do you think is was the problems?
i dont think that they just flash the global firmware they changed the motherboard
I had the same problem and fixed it using EDL mode after reading this thread, someone also made a tutorial.

Redmi Note 8 Miui downgrade problem

I have a Redmi Note 8 with an unlocked bootloader. Yesterday l, I installed Xiaomi.eu miui 11 through twrp and my phone became hard bricked (no fastboot, no recovery, no system). I'm going to fix it in a week. Is there any way to install miui 11 after it is fixed without it breaking?
Check this, May it help.
What am I doing wrong?
I have a Redmi Note 8T (willow) - unlocked - TWRP installed - rooted with Magisk 25.2. When I try to flash a custom ROM, all seems to go well. However, after reboot, the telephone reboots in TWRP, and keeps rebooting in TWRP. The only possibility...
forum.xda-developers.com

Question A Stucked Phone

Good afternoon people. Yesterday I went back to stock on my note 11, but some things didn't change and I thought it was something in the installation. I thought about using twrp in fastboot. The little big mistake I made was that because I tried to "fake" to xaomi the bootloader unlock, I took away all the developer options. I forgot this when trying to connect in fastboot mode to try and failed to install twrp . Now my cell is in fastboot mode on the screen. Do I have to wait for it to lose all battery for the phone to go back to normal again?
Sorry about my english , I hope that you understood the history
I didn't think they made twrp for the note 11 because of the mediatek chip
I don't know if this will help you but this shows you how to install the stock firmware
Xiaomi Redmi Note 11 Stock ROM Firmware (Fastboot Flash File)
Download the official Xiaomi Redmi Note 11 Stock ROM Firmware (Flash File) for your Xiaomi Smartphone. We also provide Stock ROM for other Xiaomi devices.
xiaomistockrom.com

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