Can't root in any way, out of ideas - Redmi K20 Pro / Xiaomi Mi 9T Pro Questions & Answe

Lovely community,
I'm trying to instal a custom recovery (TWRP) for my mi 9t pro.
However, although it does charge and fastcharge, it doesn't get recognized by my computer (or any other computer I've tried).
It only shows "unrecognized usb device".
I figured this would be a driver problem, so I reinstalled drivers, even forced a driver instal through device manager for this device but somehow it still doesn't show. Unfortunately, without a pc connection, rooting my phone gets really hard.
Ofcourse USB debugging, etc. are enabled.
I'm out of hope or ideas, maybe you guys could help me out here? I've been struggling for over 7 hours so far ahha so I figured I should ask for help.
Thanks in advance!!

Xarxy said:
Lovely community,
I'm trying to instal a custom recovery (TWRP) for my mi 9t pro.
However, although it does charge and fastcharge, it doesn't get recognized by my computer (or any other computer I've tried).
It only shows "unrecognized usb device".
I figured this would be a driver problem, so I reinstalled drivers, even forced a driver instal through device manager for this device but somehow it still doesn't show. Unfortunately, without a pc connection, rooting my phone gets really hard.
Ofcourse USB debugging, etc. are enabled.
I'm out of hope or ideas, maybe you guys could help me out here? I've been struggling for over 7 hours so far ahha so I figured I should ask for help.
Thanks in advance!!
Click to expand...
Click to collapse
Obvious things to try at first are changing the USB cable, trying different USB ports on the computer and, if possible, trying a different computer.
A poor quality or damaged USB cable is often the problem with these types of issues. Followed by a dodgy USB port, that's had a lot of use, on an older computer.

Robbo.5000 said:
Obvious things to try at first are changing the USB cable, trying different USB ports on the computer and, if possible, trying a different computer.
A poor quality or damaged USB cable is often the problem with these types of issues. Followed by a dodgy USB port, that's had a lot of use, on an older computer.
Click to expand...
Click to collapse
Hi Robbo,
Thank you for the reply! I've tried multiple computers, ports, cables and the usb port has been replaced so that shouldn't be the problem either... any other clues?

Xarxy said:
Hi Robbo,
Thank you for the reply! I've tried multiple computers, ports, cables and the usb port has been replaced so that shouldn't be the problem either... any other clues?
Click to expand...
Click to collapse
Show me what is showing in device manager

Xarxy said:
Hi Robbo,
Thank you for the reply! I've tried multiple computers, ports, cables and the usb port has been replaced so that shouldn't be the problem either... any other clues?
Click to expand...
Click to collapse
I assume you are using Windows 10?
Normally, connecting the phone to the PC, with the standard USB cable, Windows will automatically recognise the phone and install the required drivers without you needing to do anything? After this adb and fastboot should recognise the device without any further input.
Try removing the phone from Windows device manager and then plugging it in to the PC and see if it can automaticallyinstall it's drivers successfully.

Related

[Q] USB device not recognized

Hi, I've been transferring some stuff to my galaxy s and now i'm getting this error everytime i attach the USB (USB Device not being recognized). I already reinstalled the samsung USB drivers, uninstalled and reinstalled USB root hub drivers, used a different USB port and restarted both PC and galaxy. Anyone have any idea how i can get my device to get recognized by my pc?
no one's encountered this problem before?
I get this on and off - i'm on Win 7. I tried all 4 ports and my hub and sometimes it plays ball - sometimes not.
I often find if I change the phone from 'mass storage' to 'ask on connection' it seems to improve its chances.
Worth a try.
Homer
I tried this as well including turning USB debugging on and off.. no luck though. Only thing i haven't done is format the internal SD, but I dont want to go there unless there really is no chance of fixing this. Any help you be greatly appreciated!
psionicmatrix said:
Hi, I've been transferring some stuff to my galaxy s and now i'm getting this error everytime i attach the USB (USB Device not being recognized). I already reinstalled the samsung USB drivers, uninstalled and reinstalled USB root hub drivers, used a different USB port and restarted both PC and galaxy. Anyone have any idea how i can get my device to get recognized by my pc?
Click to expand...
Click to collapse
i recently just bought a captivate from a seller and found out mines is doing the same thing havent had no luck getting it connected to pc to mount but does charge on data cable after seeing it has been modded to froyo 2.2 rom but trying to see if any one know away to fix this.

One M7 no connect to usb only charge

Hi i have HTC One M7 801n and cant connect to PC, i try whith other cables, other computers, different usb ports and drivers, nothing works, the micro usb conector seems to be ok, no message apears in the phone and only charge, fastboot says "fastboot ac" when conect to pc. i have the bootloader unlocked but i whant at least root the phone, any ideas pls ?
Or some way to root the phone whitout connect to pc ? Adb over WiFi ? Please help !!!
PITA22 said:
Or some way to root the phone whitout connect to pc ? Adb over WiFi ? Please help !!!
Click to expand...
Click to collapse
Please ! any one ?
PITA22 said:
Please ! any one ?
Click to expand...
Click to collapse
unlocking the bootloader requires a PC how did you do it ?
clsA said:
unlocking the bootloader requires a PC how did you do it ?
Click to expand...
Click to collapse
I did before, when the usb worked
PITA22 said:
I did before, when the usb worked
Click to expand...
Click to collapse
does device manager see your phone
have you tried different usb ports and cables.
have you installed the HTC drivers
do you have usb debugging enabled in developer options ?
clsA said:
does device manager see your phone
have you tried different usb ports and cables.
have you installed the HTC drivers
do you have usb debugging enabled in developer options ?
Click to expand...
Click to collapse
device manager see it "unknow device"
different ports cables and PCs not work.
usb debugging or not its the same, not recognize and "unknow device"
PITA22 said:
device manager see it "unknow device"
different ports cables and PCs not work.
usb debugging or not its the same, not recognize and "unknow device"
Click to expand...
Click to collapse
Reboot your phone and computer then try to connect it again. If the same issue, then look at this post and see if it will help. I have also uninstalled the drivers, rebooted the computer and then install the drivers again but not HTC Sync Mgr.
majmoz said:
Reboot your phone and computer then try to connect it again. If the same issue, then look at this post and see if it will help. I have also uninstalled the drivers, rebooted the computer and then install the drivers again but not HTC Sync Mgr.
Click to expand...
Click to collapse
nothing works like i said before already try in other computers win 7, winxp etc, always "unknow device" already try whith the las versions of HTC Drivers, in win7 and other computer whith xp, always apears like unknow device in device manager, like i said before in fasboot mode says only "fastboot ac".
Before stop working in one chance, connects and disconnects constantly without me touch the cable and and suddenly stop working
PITA22 said:
nothing works like i said before already try in other computers win 7, winxp etc, always "unknow device" already try whith the las versions of HTC Drivers, in win7 and other computer whith xp, always apears like unknow device in device manager, like i said before in fasboot mode says only "fastboot ac".
Before stop working in one chance, connects and disconnects constantly without me touch the cable and and suddenly stop working
Click to expand...
Click to collapse
If you have not done it already, try wiggling the mini-usb cable to see if it improves anything. Is the phone charging? It might be a hardware problem, I have read in some other post that it is the motherboard. Sorry, I can not think of anything else.
majmoz said:
If you have not done it already, try wiggling the mini-usb cable to see if it improves anything. Is the phone charging? It might be a hardware problem, I have read in some other post that it is the motherboard. Sorry, I can not think of anything else.
Click to expand...
Click to collapse
Yes i try to move the cable in the side of the micro usb, and 5 Or 6 diferents cables, and yes, the phone only charge.
Its very strange because I bought the phone used and only works one day and the second day lost the connection to pc when in try to unlock the bootloader, the first time no connected and suddenly work, I can only unlock the bootloader and stop working.
PITA22 said:
Yes i try to move the cable in the side of the micro usb, and 5 Or 6 diferents cables, and yes, the phone only charge.
Its very strange because I bought the phone used and only works one day and the second day lost the connection to pc when in try to unlock the bootloader, the first time no connected and suddenly work, I can only unlock the bootloader and stop working.
Click to expand...
Click to collapse
Try to clean the phone's contacts with a little rubbing alcohol and/or compressed air. There maybe lint or dirt on the contacts preventing a good connection.
maybe this shud work for u , it worked for me
http://canvas2update.blogspot.nl/2014/11/not-connecting-as-usb-storage-only.html
go to your battery manager, disable fast reboot. then turn off the phone and start it back up. It worked for me
punit_pandya said:
http://canvas2update.blogspot.nl/2014/11/not-connecting-as-usb-storage-only.html
Click to expand...
Click to collapse
Unfortunately that link does not work anymore. What was on it?
Asking because I got an m7 here where USB works just fine and reliably in both fastboot and recovery. But when the system (any ROM, tried more than 10 now), there's only charging. No MTP, no nothing.
Laptop's `dmesg` says:
Code:
[150266.816544] usb 2-1.5: new high-speed USB device number 16 using ehci-pci
[150266.935189] usb 2-1.5: New USB device found, idVendor=0bb4, idProduct=0c02
[150266.935193] usb 2-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[150266.935195] usb 2-1.5: Product: Android
[150266.935196] usb 2-1.5: Manufacturer: HTC
[150266.935197] usb 2-1.5: SerialNumber: XXXXXXXXXXXX
(1-2 seconds...)
Code:
[150359.023745] usb 2-1.5: USB disconnect, device number 16

Deleted everything No ADB No OS No USB

Hi all,
I know there are lots of similar topics but this is a little bit strange because I can't use adb and usb also.
Device rooted and TWRP 2.6.3.3 installed. I tried in different computers and cables but computers do not recognise phone. It just boots TWRP. Is there any way to copy files in the phone without usb and adb?
I have replaced usb port a couple months ago due to charging problem, now charging ok but pc doesn't recognise and says "unknown device".
hajimba said:
Hi all,
I know there are lots of similar topics but this is a little bit strange because I can't use adb and usb also.
Device rooted and TWRP 2.6.3.3 installed. I tried in different computers and cables but computers do not recognise phone. It just boots TWRP. Is there any way to copy files in the phone without usb and adb?
I have replaced usb port a couple months ago due to charging problem, now charging ok but pc doesn't recognise and says "unknown device".
Click to expand...
Click to collapse
USB OTG ?
USB-OTG doesn't work also.
hajimba said:
USB-OTG doesn't work also.
Click to expand...
Click to collapse
why not?
you could look here: http://forum.xda-developers.com/showpost.php?p=52135024&postcount=2
also here for usb-otg: http://forum.xda-developers.com/showpost.php?p=61449330&postcount=23
see if any of those work
or just flash a newer TWRP and use MTP transfer
twrp has usb mtp function
enable it
I changed usb socket. Now I'm able to connect phone but it only charges when phone off.

Question PC does not recognize the phone

Hi, I have a question. I upgraded to A12 and from then, when I connect my phone to the PC through USB it did not recognize it. I try different USB cables but still the same. Maybe samsung have new drivers?
I tried various USB cables, uninstalled and reinstalled the drivers, in the development options I have USB debugging enabled and the default USB connection option for file transfer and tried on several computers and still nothing. I have no ideas what to do to make the phone discoverable again.
hmmm mine works.. have you checked the USB settings? make sure Use USB for "Transferring files / Android Auto" is selected.
Dizzyrul3z said:
Hi, I have a question. I upgraded to A12 and from then, when I connect my phone to the PC through USB it did not recognize it. I try different USB cables but still the same. Maybe samsung have new drivers?
Click to expand...
Click to collapse
which PC do you have? any PC info?
are you in US? then, which carrier?
Thanks for the answer. I made wipe cache partition in recovery and now it's ok

Question HELP PLS

previously I installed miui 14 from twrp, i rebooted, and then my TWRP are gone.
And I tried to reinstall it.
but my laptop (win 7) cant detect my phone in fastboot mode.
i have enabled usb debugging and oem unlock, but still can't detect it.
help please (sorry for my bad english)
Try the basics. Different USB port on the PC, different cable, update USB drivers on the PC. Apologies for the accent in the video, but you can find others similarly on Youtube that show you about looking at your USB driver components.
Sheist! said:
Try the basics. Different USB port on the PC, different cable, update USB drivers on the PC. Apologies for the accent in the video, but you can find others similarly on Youtube that show you about looking at your USB driver components.
Click to expand...
Click to collapse
Thank you, it works

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