my redmi note 4 does not connect to PC - Xiaomi Redmi Note 4 Questions & Answers

I am having this problem connecting to any PC or using different mi datacables. My phone charges but there is no option for mtp file transfer. I had recently rooted my phone using supersu and i read that this might be the problem.
But now my phone is not rooted and i cant make changes to build.prop file as well. And even bootloader unlocking doesnt work due to the connection problem. Please can anyone suggest how to solve this problem?

maybe cable is have bad quality or your mido have some issue in usb prt hadrware

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root without USB Connection???

usb connection and charging isn't possible.
So i opened the phone and replaced the charger port flex cable.
Still no connection to PC but charging is after a few tries on disabling usb debugging and reactivating is now possible. But connecting to the PC is even now impossible Maybe a firmware update solves the issue.
Is it possible to root via w-lan, bluetooth or SD-card?
i did nowhere find any solution
colbad said:
usb connection and charging isn't possible.
So i opened the phone and replaced the charger port flex cable.
Still no connection to PC but charging is after a few tries on disabling usb debugging and reactivating is now possible. But connecting to the PC is even now impossible Maybe a firmware update solves the issue.
Is it possible to root via w-lan, bluetooth or SD-card?
i did nowhere find any solution
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No.
Make sure you've installed all of the necessary drivers. (Kies or the standalone driver pack)
i had 2 of this smartphones. Both factory reset. I know exactly how to root!
With the first one root was no problem. But the second one seems to be defective!
Didn't you read my message properly? there must be any solution how to root without usb!
Try something like this and push the su files manually.
https://market.android.com/details?id=com.ttxapps.wifiadb
Sent from my GT-I9100 using xda premium
i need for wifi adb root permission but i don't have root and my usb is broken as i mentioned above
No one any idea?

USB Connection impossible.. how to flash now?

Hello people,
i got a small problem. I just bought a sm-g925F and be very happy with it so far. Well the problem is, that i can't connect to the phone via USB to flash another FW because 6.0 isnt aviable for switzerland (AUT) now. For those who think they maybe got a solution: impossible. I already tried everything in every forum. I tried different cables, different PCs, download mode, usb debugging, different drivers, manual set drivers, exit silent mode, wipe device, apply a new usb port on the device (im not that shure if they really did it).
Win 10 gave me a message, that its unable to get informations about the connected hardware. For me there are two solutions: 1. Hardware device of the device core PCB, 2. the Firmware is broken somehow.
ANYWAY i dont want a solution for that. Im just ask if its possible to flash another firmware for example via Wireless Lan oder an SD Card, connected to the S6 via USB adapter.
I am thankful for every reply
Kind regards
Same problem here, USB was working 100% then I got the 6.0.1 beta and now I can't get USB at all.. Are you on the beta?
Sent from my SM-G925F using XDA Free mobile app
Nope, i did a usual update to 5.1.1 when i got my phone.
if the device is still working...dial *#0808# and select MTP+ADB and try if u can flash the new FW you want to flash.
Mtp+adb was already selected
May i change these settings?
Get usb otg cable, and push firmware as adb or put zip rom on usb and browse the connected usb via otg in twrp
Sent from my LG-H815 using Tapatalk
I thoght on this, too... the Problem is that i only have stock recovery
Hey guys i just got my S6 back!
I gave it to a samsung partner after some phones with the samsung service. They wasnt able to fix this problem. So i decided to give it away to repair it. It took 6 days(!!) whats amazingly fast and they installed a new main pcb, usb slot and another thing (dont know the part name) and it works fine now!
Thanks for all your help.

[Help] Redmi Note 3 Pro cannot charge or connect to PC as USB, only FASTBOOT work

Hello. My Redmi Note 3 SD run CM14.1 with kernel Radon 3.5. It run smoothly for a month until 3 days ago. It cannot be charged as well as cannot connect to PC as USB (PC cannot recognize it). For half a day after that, the phone suddenly returned to be normal as nothing happened. And today, the same error happened again. I tried plugging it in through fastboot mode and it worked. So I thought It would be software error, I used Miflash to flash MIUI Global stable 7.1.5 with the hope that it can fix it. But not. It successfully flashed to MIUI but the problem is still here
Is there anybody got the same problem? Can anybody help me? Please!!!
p/s: Sorry for my weird English, I'm not a native speaker.
Try this:
The problem might be with your USB cable and/or your phone's micro USB port (worst case, your phone's motherboard/IC - let's hope that isn't the case). Try using different Mi USB cable or different device with the same model to find the fault. Make sure you have the required drivers installed. Hope this helps.

Samsung S9+ USB Connection not working

Hi, There I have a Samsung S9+ Exynos SM-G965F Dual Sim. Yesterday I had changed my firmware to G965FXXS2BRJ6.zip after that errors started to pop up
that
android.process.acore.has.stopped
android.process.acore.keeps.stopping
after resetting my phone now it's working but I am not able to connect my phone to pc via USB connection. It's not appearing in My Computer/Device Manager.
Please help.
I have the exact same issue, however I have a SM-G965U that can't be detected on PC (it is not even detected on device manager). I already tried connecting using ODIN however it isn't detected either.
I also tried to connect it to to other PC and it wasn't detected either.
It has build version G965USQU3BRK1.
Any news regarding this issue ?
-I have same problem with recognize USB by PC ....

poco f1 fastboot not recognized when trying to unlock bootloader

Hello everyone i"m trying to unlock my pocof1 boot-loader, i just get it and tried to get recognized by 3 computers.
it look like xiaomi ****s everything on them last upgrade. im on miui 11.0.8.
i have tried on linux and windows and the result is the same.
i successfully see the device at adb and mtp and file transfer... the only thing that i counlt reconzied is fastboot.
i have tried different cables and different ports USB2 and 3 , also upgrade and install manually drivers and mi suite.
noting works
someone has an idea???
thanks a lot
Same problem happened with me..my computer didn't work. I unlocked my boot loader with my frnds computer. You need to try to unlock your bootloader by any other computer..
Doronmak said:
Hello everyone i"m trying to unlock my pocof1 boot-loader,
noting works
someone has an idea???
thanks a lot
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Intel PC, USB 2 4 port hub between PC & fone.
Sent from my SM-T720 using XDA Labs
guhvanoh said:
Intel PC, USB 2 4 port hub between PC & fone.
Sent from my SM-T720 using XDA Labs
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i have tried in more 2 pcs and no diffrent , and i also try with other poco and the pc can recognized fastboot...
update
I tried on other phone and it recognized it.
it looks somthing on my phone and i cant understand why
also tried factory reset
Please someone?
Doronmak said:
Please someone?
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If you still have issues pls follow this video. I got results in my similar case,
praveen4u13 said:
If you still have issues pls follow this video. I got results in my similar case,
Hi All, I am facing the same problem, I have 2 poco F1 phones. One gets detected in pc and the other one doesn't but it still recognises usb pen drives using otg cable. I have tried multiple cables. It cannot be driver issue as one phone is detected and both are on miui 12.0.3, do you think it is usb port of this phone that has issues and if it is then how come the usb otg is detected. This problem started when I did a backup of the phone to unlock it.The developer option is enabled and usb debugging is on. The service center tried replacing the usb port and still I have the same issue. They said the motherboard of the phone could have problem, but how come the phone works if motherboard has issues. Can someone please help me.
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