Help needed! ADB issues(detected on phone but not in fastboot) - ONE Q&A, Help & Troubleshooting

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

Related

Stuck in fastboot - device not recognized

I can't seem to get the fastboot usb drivers to install....i tried:
a) downloaded the asus android usb drivers but can't install manually because they won't do it on x64?!
b) installed asus pc sync (should install drivers also right?)
now i'm in fastboot usb download and when i connect the cable, it says USB device not recognized.
what can be done?
installed the SDK and now i see the device recognized in ADB, but i can't get it to be recognized in fastboot mode ???!!!!!! same error about unrecognized device...
// EDIT: WELL ****ING HELL, it was the USB port!!! I tried 3 of them (front panel) and same result
Switched to a backpanel port and it flashed TWRP straight away....
**** this, pls close thread.

[Q] Nexus 5 sideload stopped, No USB anymore

Hello,
i tried to update my Nexus 5 to 5.1 by using adb sideload.
First i installed the driver which did not work, i removed them and used an another and the device was recognized after that on windows.
So I started the sideload and it stopped at about 60% and the USB Connection was lost. I can not see the device in the device manager and if i use my linux computer i can not see any new entry if i use 'dmesg'. I used an another USB cable to check if this is broken. I tried to format the cache and it now still boots to the recovery mode.
Can it be that the USB driver in the N5 is broken now?
I wanted to prevent a factory reset, but i dont think that a FR will help here if i can not connect even in the recovery mode
Any suggestions?
Thank you!
wwwiesel said:
Hello,
i tried to update my Nexus 5 to 5.1 by using adb sideload.
First i installed the driver which did not work, i removed them and used an another and the device was recognized after that on windows.
So I started the sideload and it stopped at about 60% and the USB Connection was lost. I can not see the device in the device manager and if i use my linux computer i can not see any new entry if i use 'dmesg'. I used an another USB cable to check if this is broken. I tried to format the cache and it now still boots to the recovery mode.
Can it be that the USB driver in the N5 is broken now?
I wanted to prevent a factory reset, but i dont think that a FR will help here if i can not connect even in the recovery mode
Any suggestions?
Thank you!
Click to expand...
Click to collapse
Hmmm, intermittent ADB occured before attempted sideload falure.
Boot to bootloader and see if you can
fastboot devices
If you can detect the device in fastboot, but still cant ABD, then maybe take a look here http://forum.xda-developers.com/showpost.php?p=59420668&postcount=322
After looking there, if you are absolutely certain that it is not a driver issue, you might be looking at a hardware failure of the charging port.
https://www.youtube.com/watch?v=qqCEXEmcj4Y
If it were me, I'd replace the port and re-attempt ADB sideload.

Oneplus 8T fastboot not recognized KB05AA

adb devices command works perfectly but when I'm in bootloader, computer does not recognize my phone. fastboot devices returns nothing. device manager show Android with a triangle under "Other Devices".
1. Tried updating the driver and manually choosing it as Android ADB Interface or Android Bootloader Interface with no luck.
2. Tried uninstalling/reinstalling the USB drivers and adb still works normal but fastboot still won't recognize my phone.
3. Tried revoking USB debugging and reallowing debug from my phone. Still same issue.
4. Tried using original Oneplus USB C-C cable, Pixel USB C-C cable, USB A-C cable, generic USB C-C cable (Oneplus was still not recognized on fastboot but Pixel was recognized so it is not the cable/PC)
4. Tried reformatting my PC. Doing a clean install on everything and still same issue.
My last resort is this thread. I would really like to unlock my Oneplus 8T bootloader and root but for some reason, fastboot does not recognize my phone. I just hooked up my Pixel phone after reformatting my PC and adb/fastboot worked normally like it should.
grimlust said:
adb devices command works perfectly but when I'm in bootloader, computer does not recognize my phone. fastboot devices returns nothing. device manager show Android with a triangle under "Other Devices".
1. Tried updating the driver and manually choosing it as Android ADB Interface or Android Bootloader Interface with no luck.
2. Tried uninstalling/reinstalling the USB drivers and adb still works normal but fastboot still won't recognize my phone.
3. Tried revoking USB debugging and reallowing debug from my phone. Still same issue.
4. Tried using original Oneplus USB C-C cable, Pixel USB C-C cable, USB A-C cable, generic USB C-C cable (Oneplus was still not recognized on fastboot but Pixel was recognized so it is not the cable/PC)
4. Tried reformatting my PC. Doing a clean install on everything and still same issue.
My last resort is this thread. I would really like to unlock my Oneplus 8T bootloader and root but for some reason, fastboot does not recognize my phone. I just hooked up my Pixel phone after reformatting my PC and adb/fastboot worked normally like it should.
Click to expand...
Click to collapse
try this https://forum.xda-developers.com/oneplus-8t/how-to/guide-fastbootd-to-recognized-computers-t4192449
---------- Post added at 01:00 PM ---------- Previous post was at 12:58 PM ----------
You can also try installing the oneplus drivers in the oneplus drive that pops up when you plug in your phone
Edit: Scratch that. I guess the 8T doesn't come with a driver partition. Try this https://oneplususbdrivers.com/oneplus-8t-usb-driver-download/
Install Universal ADB Drivers first and then boot Oneplus 8T to fastboot mode, repair oneplus device driver to "ClockworkMod Android ADB Interface" on Windows, you can use fastboot command for unlock bootloader now.
Universal ADB Drivers https://adb.clockworkmod.com/
I had the worst bloody time getting fastboot drivers installed for my 8T (KB2007, T-Mo).
I ended up having to find the device id for my device and manually patch and resign Google's USB drivers to get it working. If you can handle reading batch files and stuff, clone the repositories at https://github.com/fawazahmed0/Latest-adb-fastboot-installer-for-windows and https://github.com/fawazahmed0/windows-unsigned-driver-installer.
grimlust said:
adb devices command works perfectly but when I'm in bootloader, computer does not recognize my phone. fastboot devices returns nothing. device manager show Android with a triangle under "Other Devices".
1. Tried updating the driver and manually choosing it as Android ADB Interface or Android Bootloader Interface with no luck.
2. Tried uninstalling/reinstalling the USB drivers and adb still works normal but fastboot still won't recognize my phone.
3. Tried revoking USB debugging and reallowing debug from my phone. Still same issue.
4. Tried using original Oneplus USB C-C cable, Pixel USB C-C cable, USB A-C cable, generic USB C-C cable (Oneplus was still not recognized on fastboot but Pixel was recognized so it is not the cable/PC)
4. Tried reformatting my PC. Doing a clean install on everything and still same issue.
My last resort is this thread. I would really like to unlock my Oneplus 8T bootloader and root but for some reason, fastboot does not recognize my phone. I just hooked up my Pixel phone after reformatting my PC and adb/fastboot worked normally like it should.
Click to expand...
Click to collapse
Hi Grimlust i am in this exact scenario is it your device problem solved. If it has done can you walk me through the steps you went through to get that result. Please its my last chance to revive my one plus 8T
savio97 said:
Hi Grimlust i am in this exact scenario is it your device problem solved. If it has done can you walk me through the steps you went through to get that result. Please its my last chance to revive my one plus 8T
Click to expand...
Click to collapse
don't know if you still need it but today i was as desperate as you were and this helped me
How to Install Google's Android Bootloader Interface Drivers
In this comprehensive guide, we will show you how to download and install the Google's Android Bootloader Interface Drivers on your PC.
www.droidwin.com

Device not recognized in fastboot on Mac and not recognized at all on PC

I'm hoping someone can help me out here. I've rooted phones before and didn't have any trouble previously. I just bought a used Pixel 3 on eBay with the plan to root using Magisk. The only problem is I can't get the device to be recognized at all on my PC. I've tried all the usual things like different USB ports, different cables, cleaning out the port, etc. I have the latest drivers installed and I have a Pixel XL that is recognized by my PC immediately so I know I have the correct drivers installed. Pixel 3 does not show up in Device Manager at all. I have USB debugging enabled on the device, but it never prompts me to Allow USB debugging when I connect the Pixel 3 to my PC.
Now, here's the weird part. I know the cable is working fine because I use the same cable and plug it into my Mac. The Pixel 3 is recognized immediately and I'm prompted to enable USB debugging. ADB then works just fine on my Mac. 'adb devices' shows my phone. But I then try to use 'adb reboot bootloader' and my phone reboots to the bootloader as it should. At this point my phone says it's in FastBoot Mode, but the device isn't recognized using 'sudo fastboot devices' and if I try 'sudo fastboot flashing unlock' it just sits there saying 'waiting for any device'. I've also tried putting it into FastBoot mode manually by using the Power and Volume Down key, but run into the same issue with it not being recognized while in FastBoot mode.
Could the previous owner have done something to the bootloader to cause the device to not be recognized in FastBoot mode? And is there any way to fix it? Why would the phone be recognized on my Mac without issue, but using the same cable and multiple different ports on my PC, it never gets recognized?
Any help would be very much appreciated here as I'm at a loss as to what I can do and fear I just spent money on an expensive paperweight.
I tested the cable I'm using with my Pixel XL and it's immediately recognized by my PC and the notification for USB debugging shows on the phone, so I know the cable is working out. No device ever shows in the device manager when I have my Pixel 3 connected though. I've even uninstalled the drivers while my Pixel XL is connected to hopefully put Windows into a driverless state hoping my Pixel 3 would then show up as an unrecognized device, but no device. I can't get it to show up at all in Windows for some reason and it's not recognized while in fastboot mode on my Mac. Fastboot mode information all seems to match what a Pixel 3 should look like as well, so I don't think the previous owner installed the wrong software causing device id mismatch. Anyone have any other suggestions for what I can try?

ADB fastboot can't detect the phone

I'm already experienced in custom ROMs and root... However this time the adb tools can't detect my phone even if it's attached by the original cable, and also the drivers are installed correctly + i allowed the USB debugging.
Any suggestions?
Or Sdk platform tools alternatives
Btw i want to reinstall a custom recovery for the phone.
Does phone connect in MTP mode?
jwoegerbauer said:
Does phone connect in MTP mode?
Click to expand...
Click to collapse
No
My guess is you havent't installed the "Android USB Driver" suitable to your phone.
BTW: ADB Tools? I've never heard / read of them.

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