Problem with USB connection (only edl works) - Xiaomi Redmi Note 7 Questions & Answers

So I have this strange issue, when i connect my phone windows says "Usb device not recognized" and my phone is just charging without any notification for file transfer option. even tried usb debugging no results. When connected in fastboot mode windows doesnt even show usb device not recognized. no action in windows. I have tried almost all basic fixes and also have replaced the entire charging board. The bootloader is locked.... and i wanted to mod the phone but unfortunately it doesnt connect to pc.

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Problem with usb connection

Hi guys ,my problem is that when I connect my phone via USB cable at first there is no problem, data transfer , windows mobile device center, everything is OK. But when I want to flash the phone pressing vol-down + switch on/off keys the phone is not connected to the PC. And I can't flash it. Also the phone wouldn't like charge trough the charger ,only with the data cable. Is it possible to have any liaison between the problem with charging with charger and no-connection when try to flash.
Also my phone was to the service for touch-screen change ,is it possible the technician make any mistake ? Cause I think that if he make a mistake with the connector nothing gonna work ,but it works at different situations.
Regards!
check to be sure USB SYNC driver installed correctly and also try a different usb cable.
I'll try but there is no logic ,the cable works when charge the phone, works when is connected to device manager but doesn't works when flashing ?
exactly. the device requires different drivers.
1. there is internet sharing and disk mode (which works with all computers, because those drivers are in the operating system)
2. then there is one driver for syncing
3. and another one for flashing
it is not the same kind of data transfer, which is why you need a different driver. but the thread "[tut] updating htc sync drivers" should cover all your windows vista/7 driver needs and a tutorial on how to install them, which in case of a x64 system can be fairly complicated.
if you already have hspl installed (which you can determine by entering bootloader mode and looking whether it says 1.56Olinex), you can also flash using the sd car method. put a rom of your choice on the sd card, name in BLACIMG.nbh and enter bootloader mode, you will be presented with options to flash the rom.
Ok, but in instructions at the thread you give me is written that I have to start making the steps after I see "USB" on the flashing screen. But I don't see it, it's only "Serial". And now what ? I know that if on the screen i written "USB" the phone and the computer are connected and there is no problem to flash ,but now what ?
well, before you start, put your device into bootloader mode. it will show "serial", then connect it to the pc. test your connection using mtty 1.42 (you'll find several download options here in the forum).
the connection settings for mtty are USB 115200-8-1-No-NONE-None
if it works, connect and press enter, the command shell should show USB> then.
if usb is not present in the connection settings, your connection is not established yet. proceed with the tutorial then. during the entire procedure, the device should remain connected to the pc in bootloader mode, so you install the driver for the right device state.
Hello,
I've problem something like this. Few months ago when i was conecting my phone to computer was everything OK, activesync, disk drive, but now nothing, just charging the phone. I've tryed everything in USB to pc zone, but nothing. When i'm going to bootloader it's writen serial. What can be here?
since you already tried all the different connection methods and even bootloader mode does not connect, there are hardly any options left, where the trouble could be:
- the usb port on the blackstone
- the usb port on the pc
- the cable
you can try another port on the pc (or even better, another pc altogether) and/or another cable, like from a digital camera, an external hdd... (many devices have mini usb cables, you should be able to use either one of those)

usb problem

I can believe my luck, receive an update notification but cannot install, my phone is no longer recognize by my PC, mini usb is gone but the phone is still charging...
I have the same prob.
Zune says, i should connect a phone. but its connected, butnt recognized. Its charge though.
(Windows 7 x86)
Go into device manager and see if it shows up there. Might be a driver problem. If that doesn't work, boot the phone in download mode (hold home+volume down+power) and if your computer recognizes the phone now and starts installing drivers, it's you computer, not the phone.

[Q] USB Port Does Not Work When I Hold Down Volume and Power on HTC HD2

Loaded Android on my HTC HD2. Had issues with android, so I went back to Windows. Used the following to load Android
SPL-2.08.HSPL
Radio that support 576 MB RAM
DFT MAGLDR Bootloader v1.13
ClockworkMod Recovery v1.3
Now want to load android ROM again, but USB port will not work when I power on phone holding down volume button. Goes into multi colored screen but I never get USB in the white field. USB works fine when phone is being charged. When plugged into USB port on computer when in Windows mobile, PC does not recognize phone. Searched forums and it seems like a lot of people are having this issue, but no one seems to have the solution to the problem. Was hoping someone could help with this. Thanks!
Are you sure you have Active Sync or Windows Mobile Device Center installed on your computer? You have to have the correct version of this to have the correct drivers on your computer.
T-Macgnolia said:
Are you sure you have Active Sync or Windows Mobile Device Center installed on your computer? You have to have the correct version of this to have the correct drivers on your computer.
Click to expand...
Click to collapse
Yes, I have WMDC installed. My bigger concern is why the connection will not change from serial to USB when I boot into the multi colored screen by holding down the volume button while powering on the phone. If I have the USB plugged in when I'm booting to the multi colored screen, it just displays a white screen where it should say serial or USB.
jnobles1973 said:
Yes, I have WMDC installed. My bigger concern is why the connection will not change from serial to USB when I boot into the multi colored screen by holding down the volume button while powering on the phone. If I have the USB plugged in when I'm booting to the multi colored screen, it just displays a white screen where it should say serial or USB.
Click to expand...
Click to collapse
If I am understanding you correct if you have the USB plugged in when you boot to bootloader(multicolor screen) it only displays a white screen. Does it x the Sam thing if you boot to bootloader and then connect your USB cable? Also I reread your first post and I see you also say your computer does not recognize the device when you are booted into a Windows Mobile ROM and you plug the device in via USB. Now this is really not good as it might mean your micro USB port on the device nolonger is functioning for data transfer. I suggest you connect your device via USB and then go to Control Panel and open Device Manager and seecwhat your device is listed as there, post it back here in this thread too pleased. I have a feeling though that you are just having a driver issue.
T-Macgnolia said:
If I am understanding you correct if you have the USB plugged in when you boot to bootloader(multicolor screen) it only displays a white screen. Does it x the Sam thing if you boot to bootloader and then connect your USB cable? Also I reread your first post and I see you also say your computer does not recognize the device when you are booted into a Windows Mobile ROM and you plug the device in via USB. Now this is really not good as it might mean your micro USB port on the device nolonger is functioning for data transfer. I suggest you connect your device via USB and then go to Control Panel and open Device Manager and seecwhat your device is listed as there, post it back here in this thread too pleased. I have a feeling though that you are just having a driver issue.
Click to expand...
Click to collapse
If I boot to bootloader and and then connect USB cable, it stays on serial and never changes to USB. When I plug it into my computer, the light comes on to show it is charging, but the computer never sees it. Even if I scan for HW changes, it never sees the device. Windows doesn't make the sound it normally does when you plug a device in via USB.
jnobles1973 said:
If I boot to bootloader and and then connect USB cable, it stays on serial and never changes to USB. When I plug it into my computer, the light comes on to show it is charging, but the computer never sees it. Even if I scan for HW changes, it never sees the device. Windows doesn't make the sound it normally does when you plug a device in via USB.
Click to expand...
Click to collapse
I definitely think you are having a driver issue, try this if you do not have a Windows Mobile ROM on your device and see if you can do any kind of data transfer via USB. Try doing some file transfer on your SD card, if you can do this then yes you most definitely have a driver issue. I would then re install WMDC and then boot to bootloader and see if you get the USB in the in the white bar of bootloader that shows you have the HTC Sync connection.
Unable to do any kind of transfer via USB because PC does not see phone as being plugged in when I connect it to the USB. Storage on the phone does not show up under My Computer as additional storage when connected. Attempted to reinstall WMDC and it gives an error saying that it can not install the device drivers. You mentioned Windows Rom, phone is running Windows Mobile, if that is what you meant. Thanks!
jnobles1973 said:
Unable to do any kind of transfer via USB because PC does not see phone as being plugged in when I connect it to the USB. Storage on the phone does not show up under My Computer as additional storage when connected. Attempted to reinstall WMDC and it gives an error saying that it can not install the device drivers. You mentioned Windows Rom, phone is running Windows Mobile, if that is what you meant. Thanks!
Click to expand...
Click to collapse
Try another USB cord, a bad cord could charge the phone but not connect S/W recognition
orangekid said:
Try another USB cord, a bad cord could charge the phone but not connect S/W recognition
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Click to collapse
Have tried 3 different cords, all with the same results.
jnobles1973 said:
Have tried 3 different cords, all with the same results.
Click to expand...
Click to collapse
Man in that case I hate to say it but it sounds like the two data pins in the micro USB have stopped working.
Have you tried another computer?

HELP-Serius issue USB DEVICE NOT RECOGNIZED IN Download Mode

Hi
my phone is running blisspop , cmw touch is installed . when i try to connect my phone to my PC , error message saying USB device not recognized , and saying device is malfunctioned.
i tried everything.
tried my phone with my friends laptop
changed usb cable
tried same usb with my friends G2 which is working fine. so this is not issue with USB cable.
so i tried to flash kdz to get rid of problem, i entered my phone "Download mode" my pc still displaying same error message.
is it hardware related issue?
It could be a hardware problem. I'm going through a similar case (but it's not a hardware issue though). By default you shold turn off the phone, connect the usb to the PC (not the phone) and then Hold Vol+ and Power, Until you see it entered download mode, THEN you plug the USB port to the phone.
install driver

Computer won't recognize device

I just got the 6P on Amazon, used-like new. It has 6.0.1 with TWRP installed. When I plug in the short USB-C cable into my W10 PC, it doesn't detect anything. So I go enable debugging mode, turn on USB-Debugging and go down to "Select USB Configuration" and it is set to Charging. The problem is that it won't let me select any other modes other than Charging. It does charge when it is plugged in so the cable is working in some aspect. W10 device manager doesn't show any new USB device or unknown devices when plugged in.
So I reboot into Bootloader and Windows still doesn't detect any device. I tried all the other USB ports. So I'm not quite sure how to get this device to connect to the computer or to just get it to factory stock.
And in TWRP, the log shows MTP enabled and Windows still doesn't recognize it.

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