error on mi flash - Redmi K20 Pro / Xiaomi Mi 9T Pro Questions & Answe

hi!
i need to flash rom on my mi9t pro in edl mode.
in device manager its called com(03)
but on mi flash its say "
Input string was not in a correct format"
what can i do???
thanks,ariel.​

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I tried two point test in my Mi a2 and flash with mi flash tool, so, i receive this message of application: "can not read from port com8", what is it? How i do resolve?

[HELP] How to return MI A2 to factory system

Well, friends ... this is it.
I converted my Mi A2 to Mi 6x and everything was working fine. One day I decided to return my smartphone to the factory system, but unintentionally deleted all files within TWRP. Now I have the following dilemma:
I can get into TWRP and fastboot, but when trying to install any ROM by MI Flash (Jasmine_Spout or Wayne) the program says "Can not read from port COM *).
Can someone help me?
PS: Forgive me, I'm from Brazil and I'm using the translator to write this text.
Hi there, you can revert back to Mi A2 using Qfill or mi flash 2016 64 bit in edl mode, see this thread for details:
https://forum.xda-developers.com/mi-a2/how-to/guide-convert-mi-a2-to-mi-6x-t3896802

Mi A2 to 6X converted issue

I had converted my Mi A2 into 6x but i forgot to delete Firmware Update folder. Now i'm using Pixel Experience Rom based on 6X.
Is it possible to go back Mi A2? (Without Opening Phone Backpart
Oline1032 said:
I had converted my Mi A2 into 6x but i forgot to delete Firmware Update folder. Now i'm using Pixel Experience Rom based on 6X.
Is it possible to go back Mi A2? (Without Opening Phone Backpart
Click to expand...
Click to collapse
open fastboot :
fastboot getvar all
there will be a bunch of info ...if the ARB number is higher than 4 the answer is NO
fyi: you can enter edl from fastboot or twrp custom recovery if your phone is in working order .. shorting the pins ( test point) by opening phone physically only becomes necessary if your phone is bricked
open fastboot :
fastboot oem edl
***something to consider is you can't just flash an android 1 rom ...you need to download the repartition script to repartition your partition layout or all attempts will fail

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Hello all!
I have Xiaomi mi9t pro from chine. By MiFlash i installed newest global rom on phone. I chosen "flash_all_lock" script. After successful install (communicate in MiFlash) phone won't boot up. There is a message "MiUI version can't be installed on this device". I can't unlock boot-loader for install new rom again because Mi Unlock give me a message "Please add your account in MIUI's settings > developer option > Mi unlock status"
Before this, i successfully installed same rom file but with option "flash_all.bat" and it worked.
How i can fix this?
For any help thanks

Help Mi tools error flash timeout

I tried to make flash rom for xiaomi mi 9 lite but I could not do it I get an error on Mi tool flash ERROR FLASH TIMEOUT can you help me what this error means
Cewe91 said:
I tried to make flash rom for xiaomi mi 9 lite but I could not do it I get an error on Mi tool flash ERROR FLASH TIMEOUT can you help me what this error means
Click to expand...
Click to collapse
It's happening to me right now. Did you solve it?

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