Hi,
I have the Android SDK installed and have also enabled USB debugging and allowing unlocking of bootloader option in developer options. When my phone is on and I connect it via USB cable, and then run adb devices command, I can see it shows the device. However, when I switch off and enter fastboot mode (volume up + plug usb cable) and then run fastboot devices command, it displays nothing. Can someone please help?
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Dear all,
Please Help me. My One plus one is on CM12 official rom (rooted). Problem is when I connect my phone to computer and use ADB it is detected (adb devices: number & devices detected) but when in fastboot (fastboot devices : nothing is detected) I check in my device manager (yellow triangle on android ) My problem is why CAN it be detected when my phone is on but NOT during fastboot.
Necessary checks done : USB debugging, Universal driver, SDK installed, USB driver reinstalled again, tried changing usb ports on computer, tried on 2 laptops)
I am helpless, tried checking on forums can not find the answer.
CalvinVeez said:
Dear all,
Please Help me. My One plus one is on CM12 official rom (rooted). Problem is when I connect my phone to computer and use ADB it is detected (adb devices: number & devices detected) but when in fastboot (fastboot devices : nothing is detected) I check in my device manager (yellow triangle on android ) My problem is why CAN it be detected when my phone is on but NOT during fastboot.
Necessary checks done : USB debugging, Universal driver, SDK installed, USB driver reinstalled again, tried changing usb ports on computer, tried on 2 laptops)
I am helpless, tried checking on forums can not find the answer.
Click to expand...
Click to collapse
Have test to fastboot commands?
In fastboot be unplugged
Write
fastboot reboot
for test
Will answer wait for device
Plug device to test
My pc also does not recognise but work fine
with commands
geowolf1000 said:
Have test to fastboot commands?
In fastboot be unplugged
Write
fastboot reboot
for test
Will answer wait for device
Plug device to test
My pc also does not recognise but work fine
with commands
Click to expand...
Click to collapse
Tried adb reboot bootloader then phone boots into fastboot mode but from here..
is total no connection. Tried checking fastboot devices (nothing), fastboot reboot (waiting)
then i tried as u said unplug & plug in (not recognize) from here adb cannot be written anymore. (no more commands can be typed). Tried others like down loading Pdanet ,force install driver..Nothing works. Thinking ,did I corupt the bootloader while I was rooting it last time.?
I think if something was wrong with bootloader you could not either boot .
Do you use antivirus to pc?
Try without antivirus
What happening the false is from computer
Mine is reverse issue. When in fastboot mode, pc recognizes OPO, but when OPO is normally connected to pc, adb is not working. Its charging and can transfer data through USB, but OPO is not recognized through adb commands. Device Manager too recognizes my OPO only when it is in fastboot mode and not when normally connected via USB for data transfer.
I have a software, through which I can REVERSE TETHER my PC's internet to my mobile via USB. Because my OPO is not recognized via USB in normal mode, I can't do that. Any idea, what's wrong with my OPO.
(I have installed Android SDK and google usb drivers, for my OPO to work in fastboot. I have rooted. My pc runs on win7)
mrsureshisha said:
Mine is reverse issue. When in fastboot mode, pc recognizes OPO, but when OPO is normally connected to pc, adb is not working. Its charging and can transfer data through USB, but OPO is not recognized through adb commands. Device Manager too recognizes my OPO only when it is in fastboot mode and not when normally connected via USB for data transfer.
I have a software, through which I can REVERSE TETHER my PC's internet to my mobile via USB. Because my OPO is not recognized via USB in normal mode, I can't do that. Any idea, what's wrong with my OPO.
(I have installed Android SDK and google usb drivers, for my OPO to work in fastboot. I have rooted. My pc runs on win7)
Click to expand...
Click to collapse
Install pdanet+ for win
i got the bootloader unlock key from huawei and saved it in case i will need it, i want to unlock it now so i downloaded the latest android platform tools. i tried unlocking it using fastboot but fastboot devices didnt return anything (i used adb reboot bootloader to enter the fastboot mode) when the phone was in the fastboot mode (it said phone locked frp unlocked) i tried fastboot oem unlock [key] but it didnt find any device so i typed fastboot devices but it didnt return anything. i searched for almost an hour in xda and the internet and couldn't find anything helpful so i created an account and posted the question here (it didnt allow me to post on the root forum)
Have you put your phone in fastboot mode first. (Turn off phone and while holding down the volume down button plug in the usb cable to your pc) or download the Multi Tool application from https://pro-teammt.ru/huawei-multi-tool-eng/ and use the unlock bootloader with own key. Note that unlocking the bootloader will factory wipe your phone so make a backup first.
rex91 said:
Have you put your phone in fastboot mode first. (Turn off phone and while holding down the volume down button plug in the usb cable to your pc) or download the Multi Tool application from [link that xda didnt allow me to add] and use the unlock bootloader with own key. Note that unlocking the bootloader will factory wipe your phone so make a backup first.
Click to expand...
Click to collapse
i tried it but it has the same problem, it sends the phone into the fastboot mode and then it cant find it, i connected the phone with usb cable and enabled all necessary options from the developer options in the settings
When you connect your phone to your pc and go into device manager is your device recognised. If not then either it might be a driver issue (reinstall all Huawei drivers), a usb cable problem (try another cable) or a usb port problem (try another usb port)
Hi Guys , Have pixel 3 I cannot connect my device to PC as MTP but it can do bootloader mode when tap out the battery and put it back that strap and then plug on USB so it will work I found this solution after few months, but when I boot twrp I cannot access otg,and mtp enables unable to mount storage USB it not detected simply ,
I cannot make sideload or adb push anything my PC only detected on bootloadee mode after recovery it get ejected no recognized ,
I tried to install custom ROM manually like using only fastboot mode but flashing images like system,product,vendor everything needs to be " fastboot d" mode when I get this mode my device get disconnected why this happens to me I changed cables ,
Ports ,latest platform tools but I cannot access userspace or adb please help me I didn't sleep for 2 days its my mom phone.
i already updated both adb devices and qualcom,
i downloaded most updated fastboot
it doesn't show more than charging - like i can't access the storage.
oem unlocking it ticked, usb debugging is ticked.
only one thing could be the cable but i've it a week ago..
you approved the usb authorization prompt on the phone when you connected your device to the pc?
Device is stuck in EDB mode
Fastboot will pickup
ADB & charge mode fail
fix
Removing the back cover disconnecting the battery and reconnecting it
Hey guys,
I am Currently attempting to unlock the bootloader on my Pixel 6a, but when I attempt to connect via fastboot in the bootloader my PC shows nothing connected? I can push commands through ADB while the device is booted and have full functionality, but as soon as I reboot the device into the bootloader I lose connection to my PC. OEM Unlocking is enabled in the settings and I have toyed with updating it to the latest update and factory resetting the device. It shows correctly in device manager as 'Pixel 6a' while USB Debugging is disabled and as 'android composite ADB interface' while it is enabled.
To clarify as I am sure many have seen this issue before I do not believe it do be a driver issue as the device will not show up at all in device manager, not even showing with the incorrect driver (No ding to indicate a device has been connected). I have tried using 2 different USB C -> A cables in all slots of two entirely seperate PC's (Both running Windows 10). When I enter fastboot with OEM Unlocking disabled it acts no different to when it is enabled.
I appreciate any help or insight any of you folks can give me.
Device is currently running Android 13 Build number TQ2A.230505.002 if you need anymore info please let me know.
The OEM Unlocking toggle does not affect whether USB function works. It is only a "safety" that allows unlocking the bootloader.
Have you ensured you've installed the correct drivers? Google USB Drivers
I have spent a long time looking at drivers, but I have no device to install the drivers to as the connection drops out once I eneter the bootloader. I have used Zadig in the past to install the correct drivers for devices but when I reconnect the device while I have it open it cannot even detect a new device being connected to the PC. (Also no audible tone which would be heard even with incorrect drivers) I actually only recently used Zadig to install the correct WinUSB drivers for my S10e in which I connected it to my PC in download mode (Queue audible ding) and used Zadig to overwrite the incorrect driver with the correct one. It's almost as if the device will not communicate while it is in Bootloader mode?
I assume you have checked with the 'fastboot devices' command to see if your device is connected when in fastboot mode?