Develop Bugs

USB Problem

I have formatted my desktop computer few days back and since then I cant connect my One X to my PC
I have searched all the thread but cant find a solution to my problem therefor I am creating this new thread..
Here are the points
1) Installed latest HTC drivers
2) My other phone gets connected without any problem that means only my one x is having the problem
3) I am using kitkat aosp rom maybe thats why my computer cant detect the phone
4) When I connect my phone to computer, it starts to install the drivers. All drivers get installed successfully except "Android Phone" and device manager shows Android Phone with a yellow exclamation mark.
5) adb commands dont show any device connected.
6) I tried to enable and disable usb debugging
7) I tried to boot into bootloader and then fastboot commands work (I tried erase cache and devices commands)
8) So is there any way I can use adb commands from my computer while my phone is booted ?

try this
1)disable debug mode then connect your phone and mount sd card
2)if above step doesnt work,enable debug mode,connect your phone,mount sd card then disable debug mode.
or
3)mount sd card from recovery
or
4)use sense rom

since I flashed kitkat rom, i have to disable usb debugging before clicking 'turn on usb storage'. Only then my pc will detect my phone

mr93 said:
since I flashed kitkat rom, i have to disable usb debugging before clicking 'turn on usb storage'. Only then my pc will detect my phone
Click to expand...
Click to collapse
Poojan Patel said:
try this
1)disable debug mode then connect your phone and mount sd card
2)if above step doesnt work,enable debug mode,connect your phone,mount sd card then disable debug mode.
or
3)mount sd card from recovery
or
4)use sense rom
Click to expand...
Click to collapse
Actually USB mass storage works without any problem. I disable usb debugging and usb mass storage works.. I am not having any problem with that. My problem is that I cant use adb commands on my phone since adb cant detect my phone...

a.broken.star said:
Actually USB mass storage works without any problem. I disable usb debugging and usb mass storage works.. I am not having any problem with that. My problem is that I cant use adb commands on my phone since adb cant detect my phone...
Click to expand...
Click to collapse
Me too. adb doesn't detect my phone after kitkat. But I don't use adb that much. Do let me know anyways if there's any solution

mr93 said:
Me too. adb doesn't detect my phone after kitkat. But I don't use adb that much. Do let me know anyways if there's any solution
Click to expand...
Click to collapse
okies.. i am trying to find a solution....

a.broken.star said:
okies.. i am trying to find a solution....
Click to expand...
Click to collapse
Try look for latest adb/fastboot driver. Or install android sdk tools if it help.
Reference : http://forum.xda-developers.com/showthread.php?t=2529803
Sent from my HTC One X using Tapatalk

audahadi said:
Try look for latest adb/fastboot driver. Or install android sdk tools if it help.
Reference : http://forum.xda-developers.com/showthread.php?t=2529803
Sent from my HTC One X using Tapatalk
Click to expand...
Click to collapse
It looks like it will work.. i'll try this today..

WOW !! It worked... Thanx a lot @audahadi
I dont know how to thank you.. You are genius bro !!

a.broken.star said:
WOW !! It worked... Thanx a lot @audahadi
I dont know how to thank you.. You are genius bro !!
Click to expand...
Click to collapse
Gotta try that, I have the same problem. ADB over wifi works fine, and so does fastboot with the cable connected.
Sent from my One X using Tapatalk

And for those who google here and want another run for a solution to ADB troubles: http://adbdriver.com/. Thanks to @and313 and this post in the General section:
http://forum.xda-developers.com/showpost.php?p=50303554&postcount=1

Can t connect watch to pc via adb

Please someone make a tutorial how to conect huawei watch to pc via adb. Thanks!
Sent from my SM-N910F using Tapatalk

oprescutoma4 said:
Please someone make a tutorial how to conect huawei watch to pc via adb. Thanks!
Sent from my SM-N910F using Tapatalk
Click to expand...
Click to collapse
Enable ADB on the watch (settings/about/tap build# 10 times then developer options, ADB enable)
Download PDANet ADB Drivers: http://www.topnotchtablets.com/installADBdriver
connect to computer. (Using the magnetic USB charging cable)
reboot into fastboot using: adb reboot-bootloader
then issue command: fastboot oem unlock
accept the prompt on the watch. (Hold the watch button)
then reboot the watch...
You should be good
Sent from my SM-N920T

I only get device not found.
Adb is install properly but the watch cant conect to computer. I dont know why. I try everithing. I installed the driver you recomand.
Sent from my SM-N910F using Tapatalk

oprescutoma4 said:
I only get device not found.
Sent from my SM-N910F using Tapatalk
Click to expand...
Click to collapse
Screen needs to be unlocked if you are not rooted. It's kind of a pain because of the rapid change to ambient/off. If you are rooted you can restart adb as root and it works with the screen off.
You can reboot to fastboot mode directly if you want fastboot. Power the watch off, then power it back on while holding the power button. After the first vibrate, rapidly release then press the power button again.
Edit: I also use the pdanet drivers. I have not installed an Android driver in like three years. They work with everything.

I think i managed to unlocked it but now the watch reset and delete all my data. Its this wright?
Sent from my SM-N910F using Tapatalk

Cannot unlock bootloader for H811 20o

I already enabled OEM Unlock and USB Debugging in Developer options.
then I connected my LG G4 H811 to PC and confirmed MTP.
adb devices just shows:
List of devices attached
If I select USB charge instead of MTP, the adb devices shows:
List of devices attached:
LGH811***** offline
Looks like MTP mode adb cannot connect to H811 at all.
Does anyone know the reason? Really need to unlock bootloader and then root my phone.
Thanks

eruisi said:
I already enabled OEM Unlock and USB Debugging in Developer options.
then I connected my LG G4 H811 to PC and confirmed MTP.
adb devices just shows:
List of devices attached
If I select USB charge instead of MTP, the adb devices shows:
List of devices attached:
LGH811***** offline
Looks like MTP mode adb cannot connect to H811 at all.
Does anyone know the reason? Really need to unlock bootloader and then root my phone.
Thanks
Click to expand...
Click to collapse
its beacause your mobile's Debugging didnt alowed that usb connection. when u type 'adb device' there should be a popup on your device asking to connect to pc. choose Allow. it will be online hen.

Thanks for the reply!
But there is no popup on the phone when I type "adb devices". The only popup I see is when I connect PC and phone with USB, a popup on phone asks me "Allow this computer to access your phone data?" I choose "Yes"
Any help will be much appreciated.

eruisi said:
Thanks for the reply!
But there is no popup on the phone when I type "adb devices". The only popup I see is when I connect PC and phone with USB, a popup on phone asks me "Allow this computer to access your phone data?" I choose "Yes"
Any help will be much appreciated.
Click to expand...
Click to collapse
You need to enable USB debugging in developers options.
Sent from my LG-D801 using Tapatalk

bxlegend said:
You need to enable USB debugging in developers options.
Sent from my LG-D801 using Tapatalk
Click to expand...
Click to collapse
I enabled OEM unlock and USB debugging both in Developer options.

eruisi said:
I enabled OEM unlock and USB debugging both in Developer options.
Click to expand...
Click to collapse
If all the checks boxes are ticked, try revoking USB debugging authorizations. Connect your device as MTP (try PTP as well) and try to adb devices again and see if you get the pop up on your phone. Last option would be to boot into recovery via button combo and reboot into the bootloader from there.
Sent from my LG-D801 using Tapatalk

I tried all of your suggestions, none of them work.
PTP/USB charging mode, adb devices shows:
List of devices attached:
LGH811***** offline
MTP shown no device attached...
I did get into download mode (bootloader mode I think) - screen says Firmware Update, do not unplug the USB connection until the process is complete
Then I tried to run fastboot oem unlock, it stucks at
< waiting for device >
and there is no change on phone screen.
Any other ideas? I really need to root my H811. Appreciate any suggestions!

Change to PTP mode.
Gesendet von meinem LG-H815 mit Tapatalk

It sounds like your usb drivers ars not properly installed. I would try uninstalling and then reinstall. Did you happen to install LG Bridge?
Sent from my LG-H811 using Tapatalk

eruisi said:
I tried all of your suggestions, none of them work.
PTP/USB charging mode, adb devices shows:
List of devices attached:
LGH811***** offline
MTP shown no device attached...
I did get into download mode (bootloader mode I think) - screen says Firmware Update, do not unplug the USB connection until the process is complete
Then I tried to run fastboot oem unlock, it stucks at
< waiting for device >
and there is no change on phone screen.
Any other ideas? I really need to root my H811. Appreciate any suggestions!
Click to expand...
Click to collapse
Download mode is not the recovery. If you have TWRP installed as your recovery, power your phone off completely and disconnect it from the computer. Then press and hold volume down and power. Keep holding and when you see the LG screen, release only the power button and press and hold it quickly again (you should still be holding volume down). This'll take you to the factory reset screen, select yes twice and you should be taken to twrp. REMEMBER, ONLY DO THIS IF YOU HAVE TWRP INSTALLED!
Sent from my LG-D801 using Tapatalk

I dont have TWRP installed
The phone is in initial state from factory and has been upgraded to MM 20O

eruisi said:
I dont have TWRP installed
The phone is in initial state from factory and has been upgraded to MM 20O
Click to expand...
Click to collapse
Ohh...follow the op in this thread.
Sent from my LG-D801 using Tapatalk

I followed all steps in the thread you list. I am stuck at "adb devices" where I didn't see my phone is listed if I connect with MTP mode. For USB charge or PTP, I see devices but it is offline.
With this problem, I cannot get my phone reboot into bootloader mode and run oem unlock/twrp.

eruisi said:
I followed all steps in the thread you list. I am stuck at "adb devices" where I didn't see my phone is listed if I connect with MTP mode. For USB charge or PTP, I see devices but it is offline.
With this problem, I cannot get my phone reboot into bootloader mode and run oem unlock/twrp.
Click to expand...
Click to collapse
Did you tried revoking the usb auth?
http://forum.xda-developers.com/g4/development/unlock-bootloader-h811-20o-t3459285/post68630578
Do you receive a popup afterwards when connecting the usb cable?
PTP or usb charge should be fine.
What OS are you running?
.

I am using Window10 on my PC.
I made a tiny progress: I installed LG Bridge software and it updated LG driver on my PC. Now when I connect phone to PC with USB (of course I choose "ALLOW" for popup USB Connection Allow this computer to accept your phone data?). Now I see devices under MTP mode but it is still offline so I cannot boot it into bootloader mode. There is no popup when I run adb devices.
I tried revoke USB auth a couple of time, no luck

Finally I made it work!
The reason is adb I was using is too old
I changed to 1.0.31 then it works w/o any issue.
Thanks for the help all the way! I really appreciate your patience.

eruisi said:
Finally I made it work!
The reason is adb I was using is too old
I changed to 1.0.31 then it works w/o any issue.
Thanks for the help all the way! I really appreciate your patience.
Click to expand...
Click to collapse
flash tt36 uss enterprise rom ots fast.
http://forum.xda-developers.com/tmobile-g4/development/t-mobile-lg-g4-h-811-mm-20o-tt10-uss-t3411769

I am having a different problem, i get to all these step but when I type fastboot oem unlock it gets stuck at waiting for device no matter how long i let it sit. I know there is no problem with adb because it shows the device with the serial number, I just can't unlock the boot loader

eruisi said:
Finally I made it work!
The reason is adb I was using is too old
I changed to 1.0.31 then it works w/o any issue.
Thanks for the help all the way! I really appreciate your patience.
Click to expand...
Click to collapse
OP @eruisi
Dont you know that this doesn't belong to the Android Development section?
Please be sensible and post in the right section and create threads only when it is actually required.
By using SEARCH and PM to other members...many things get solved with less and accurate results
Thread moved

adb devices: no device found, why ?

Just a quick question.
Im unable to access fastboot or bootloader mode through adb command line.
I turned on usb debugging, connected phone to usb cable with my pc, run command line in platform-tools - adb devices and nothing happens.
I think i know the answer, but i want to be sure. Is it because i dont have unlocked bootloaded (OEM Unlock, still 6 days to wait)

Do you have the proper drivers? Try downloading the universal ADB drivers.
Sent from my Lenovo P2a42 using Tapatalk

Switch USB mode to PTP instead of MTP. I don't know why, but it works like that after Android KitKat/Lollipop release. Used this trick on LG G2 mini and now on my P2

I dont know if i have correct drivers, but i think so
https://dl.google.com/android/installer_r24.4.1-windows.exe
http://download.oracle.com/otn-pub/...m=1498221676_80503fd7b283f64cfa8ae7825b0021e2
My Xiaomi Redmi phopne is detected correctly, but its rooted and OEM unlocked
edit:
It's fine now. Its unbelivable what a mess is with adb files/usb drivers and similar. There is so much that can go wrong.
I wiped everything and installed minimal adb and fastboot + lenovo usb/mtp drivers
Now pc detects my phone.

pc isnt detecting mobil in fastboot

My pc is not detecting Mobil in fastboot mode. I want to unlock bootloader and root it, is there any way to fix it? I'm using win 10

bisht ankur said:
My pc is not detecting Mobil in fastboot mode. I want to unlock bootloader and root it, is there any way to fix it? I'm using win 10
Click to expand...
Click to collapse
You need to download the correct drivers for Z2 Plus, search on google

visheshjain25 said:
You need to download the correct drivers for Z2 Plus, search on google
Click to expand...
Click to collapse
I tried universal adb drivers and Lenovo z2 adb drive but they didn't work.

bisht ankur said:
I tried universal adb drivers and Lenovo z2 adb drive but they didn't work.
Click to expand...
Click to collapse
Your drivers are not correct, that's why the pc is not detecting the phone, try downloading MI Flash Tool, it has all the necessary drivers for Z2 Plus, google it

visheshjain25 said:
Your drivers are not correct, that's why the pc is not detecting the phone, try downloading MI Flash Tool, it has all the necessary drivers for Z2 Plus, google it
Click to expand...
Click to collapse
Thanks for replying, I tried mi flash but it also didn't work.

this worked for me
bisht ankur said:
My pc is not detecting Mobil in fastboot mode. I want to unlock bootloader and root it, is there any way to fix it? I'm using win 10
Click to expand...
Click to collapse
Connect your smartphone to PC
Make sure the USB debugging is enabled and revoke all debugging history(the option below the enable debugging)
Now install the drivers that appear on the screen as ZUK z2 drivers or something like that.
Install it .
It should take some time.
Then try the following command line"adb devices"
Now a prompt should appear
Click always allow and then on allow.
Now you should be able to connect your phone to the PC.
I just unlocked my bootloader on a win 10 machine
Like this if this works for you.

emotionless161098 said:
Connect your smartphone to PC
Make sure the USB debugging is enabled and revoke all debugging history(the option below the enable debugging)
Now install the drivers that appear on the screen as ZUK z2 drivers or something like that.
Install it .
It should take some time.
Then try the following command line"adb devices"
Now a prompt should appear
Click always allow and then on allow.
Now you should be able to connect your phone to the PC.
I just unlocked my bootloader on a win 10 machine
Like this if this works for you.
Click to expand...
Click to collapse
wow, thanks mate it worked.:good::good:

bisht ankur said:
wow, thanks mate it worked.:good::good:
Click to expand...
Click to collapse
Glad I helped

bisht ankur said:
My pc is not detecting Mobil in fastboot mode. I want to unlock bootloader and root it, is there any way to fix it? I'm using win 10
Click to expand...
Click to collapse
Same here but I used adb wireless app and it worked

IAM also facing this problem 1)first of all you must install zuk drivers only next adb fastboot drivers install your PC and let's go

bisht ankur said:
My pc is not detecting Mobil in fastboot mode. I want to unlock bootloader and root it, is there any way to fix it? I'm using win 10
Click to expand...
Click to collapse
same issuue