Problem loading rom. No fastboot detected and twrp reboots - Xiaomi Mi 10 Questions & Answers

Hello:
I have Xiaomi Mi10 5g with xiaomi.eu that works fine but I wanted to put an original stock rom. The pc does not recognize it in fastboot, it only happens with this phone, we have three more xiaomi in the family and the pc recognizes all of them, the custom twrp restarts and does not start, it does not let me reset to factory, that is, I cannot do nothing to change the rom.
Can someone tell me what can I do?
Thanks. Regards.

Finally, the problem was dirt in the charging connector.
I cleaned it very well with isopropyl alcohol and the PC recognized the phone.
I was able to load the stock rom and close the bootloader by fastboot.
Regards.

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Lenovo A916- usb working only when plugged during phone reboot

Hello all!
I'm new there but I'm not capable of finding any solution to my problem. I tried on my phone customRom named MysitcOS v6 (for Xaomi redmi note) ported to my device. I got only booting phone without IMEI and baseband unknown. Flashing NVRAM.bin (from stock) using flash tool didnt help. On this rom usb is working fine. When I flashed whole stock rom using sp flash tool including nvram. Almost everything is working well. When I plug usb to phone it charges only and in device manager there are no changes. I must reboot phone wuth usb plugged every time I want establish usb connection. When I flash back Mystic os from recovery USB is working fine again and after every stock rom flash usb doesnt work well. Do you ave any ideas why this happens and maybe how to get rid of this problem? Thanks in advance.

[HELP] Dead Usb Data connection (kenzo)

Hi guys, i'm Claudio. I'm new to this xda community and before i start i want to thank you in advice for your help and i want to sorry for my bad english ^^.
Two days ago my Redmi note 3 pro had a random reboot during charging and it stops booting up, with AC adapter it shows only a blinking red light. I tried everything and finally manage to boot into fastboot mode by removing the case and disconnect battery pins and reconnect them. Now every time my phone accidentaly or not reboots with the AC adapter attached, it dies and i need to open case again and disconnect battery pins.
P.S. I can charge my phone without any problems.
This i not the only problem i have now:
- OTG does not work anymore, system do not detects any kind of usb device, Pendrive, Mouse, Keyboards, Gamepads etc.
- In Settings USB options are not present anymore (MTP for exemple), tried any kind of programs and drivers.
- I cannot disable VoLTE.
- My PC shows "Device not recognized" when i connect my phone. It acts like my PC did not manage to read phone firmware and don't know what kind of device i connect.
Strage thing is that i manage to manually install Marshall Bootloader ADB drivers and now i can flash roms with fastboot method.
As you can see is not a problem caused by damaged data usb pins because i can flash ROM's, Recovery mods etc. It may be a problem caused by a damaged partition, maybe a locked one witch i cannot flash using Miflash tool but here guys i need your help because i don't have any experience with nandroid backups, partitions.
Actual configuration:
Miui Stable 7.3.7.0 (also tried miui 8 global developer, nothing changes)
Radon 2.3 kernel (even with stock kernel nothing changes)
Bootloader officially unlocked
I will give you any kind of information you want, and i will try everything. No problem if i lose my data. Thank you guys! :good:

Xiaomi Redmi Note 3 Bricked not responding at all

Hi,
I got my new phone a couple of days back, installed CM13 (officially unlocked, did that with TWRP + install ROM) probably incorrectly because i couldn't get the fingerprint sensor and other stuff to work at all.
Today my phone turned off by itself with around 70% of battery left and it's not responding anymore. Cannot go into Recovery mode, not even to Fastboot. Connected it to the charger and have the red light of the devil blinking... Tried to do everything i found online but i couldn't get into EDL mode (and then Flash through MiFlash), since fastboot is not working at all.
I really don't wanna have to open the back of the phone and. What can i do to save the phone? Is there any proven solution and a comprehensive guide to this (for a total idiot like me)?
Yes there is deep flash cable method search on xda/youtube it works like a charm,😉, this method saved me once
Try this (http://forum.xda-developers.com/redmi-note-3/how-to/guide-how-to-flash-hard-bricked-redmi-t3490055) works 100%
Try to disconnect and reconnect the battery.
This has kicked me into EDL mode once and after flashing it was fine
Both methods are sound, but if you decide to remove the back cover, remember to eject the SIM card tray first
Thanks for the replies, i was hoping i wouldn't have to have to open the back cover and disconnect the battery but it seems to be the only option at this point.
The deep flash cable doesn't seem that difficult tho, why don't you give it a shot? It seems like that's what they use at MI service centres after all.
So i have managed successfully to have the pc recognise the device as Qualcomm Hs USB Qdloader 9008, opened the MiFlash tool and recognised the device, but when i try to flash a stable MIUI rom i get an error: "Write timed out" as many times i tried to do it.
Does anybody have a suggestion?
My device was unlocked officially and i have no recovery no fastboot nothing at all.
alphax_ said:
So i have managed successfully to have the pc recognise the device as Qualcomm Hs USB Qdloader 9008, opened the MiFlash tool and recognised the device,
Click to expand...
Click to collapse
Which method you used - Deep Flash cable or Battery disconnect?
Yeah sorry i did not mention it, disconnected the battery.
i tried the battery removing method but the phone is not responding
now need to try cable method
Ryan Raghendh said:
i tried the battery removing method but the phone is not responding
now need to try cable method
Click to expand...
Click to collapse
Get into EDL

USB not recognised, only fastboot

Hi folks,
I bought a used X820. Beside camera, which I need to replace, the phone worked well.
I have a fresh clean install of LOS15.1 (I also used AOSIP with same behavior), S30 firmware, mindthegapps, magisk, TWRP3.2.3-1
Since this morning the USB port isn't recognized by any device. No computer, no otg, no car.... The device charges as it should. Not even TWRP sees it.
It is not just "unknown". It's simply not there.
Edit: lsusb doesn't show a device.
I don't think it is a hardware problem. Fastboot mode works.
Edit2:
I can connect the device in fastboot mode and flash (what I did). PC (lsusb) shows the device. Fastboot mode works as it should.
I flashed a totally new system from scratch using Qfil image (from somewhere in the ROM/kernel section) ->Qualcomm Modem works too.
Maybe kernel-related? any ideas how to fix or test?
Thanks for your help.
Jo

TWRP killed my phone redmi 4. #mymistake

So after updating the phone to miui 11, the file transfer mtp using USB was not working...
Tried everything, installing drivers, changing pc, cable. lit every possible thing...
Finally decided to flash an older version of rom.
it was successful, but still, usb file transfer was not working.
So, thought to install custom rom, and for that, i installed twrp, and by mistake, i cleaned everything including the system.
now, my phone got dead. but still, fastboot bootloader mode was working, So, I tried a different bunch of commands that I found over internet. but nothing worked.
So, again I flashed the stock rom using mi tool, and it broke the last working thing also(fastboot screen).. and my phone stuck in a loop. it just vibrates and turns on-off without any indication on-screen(no Mi logo, no charging light, nothing)...
at last, tried EDL mode, but still no luck, i tried different version of stock rom using EDL mode also. nothing working....
Need help to fix this phone.

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