USB Debugging option greyed out

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I have an LG-E405 phone running Android 2.3.6.

I connected my phone with a USB cable and selected the mode as Charge Only.

Now when I try to turn on USB Debugging, I find that that the option is greyed out.

So, how can I enable USB debugging in this case.

Pratt answered 10/1, 2013 at 5:32 Comment(7)

This question appears to be off-topic because it is about using an Android and is more appropriate for android.stackexchange.com – Marlinemarlinespike 22/10, 2014 at 17:9

Is it possible to migrate it there? – Pratt 24/10, 2014 at 8:48

Yes, I have requested a moderator intervene to migrate the question. – Marlinemarlinespike 24/10, 2014 at 17:3

@DanS While this question may be good for android.se, it is not really off-topic here since it pertains directly to needs of a developer for testing/debugging. "software tools commonly used by programmers" from the help center which is linked to close the question. – Lechery 7/11, 2014 at 19:44

If you have 'My Knox' installed, disable or uninstall it and try to activate USB debugging again. – Leuctra 9/3, 2016 at 10:15

INDEED this is NOT off-topic. Solving this problem is crucial to getting to the point where one CAN ask a question about programming. See @Gene's Answer below, – Diaphoretic 22/7, 2016 at 12:34

In case you are using Samsung and have MyKnox installed, you cannot enable USB-Debugging until you uninstall MyKnox as stated in This Link – Flimsy 9/8, 2016 at 16:17

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Finally figured out the solution to the problem, with the help of this post.

When you connect your phone to your PC, using the USB cable, select the mode as PC Software.

Now you should be able to enable USB Debugging.

Pratt answered 10/1, 2013 at 10:13 Comment(2)

Equivalently, go to Settings -> Connectivity -> Default Mode -> PC Software. (Worked for me) – Flyblown 3/1, 2015 at 19:54

On Usb pc connection->Settings-> install pc drivers worked for me. – Electroacoustics 6/6, 2017 at 11:13

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You have to enable USB debugging before plugging your device in to the computer. Unplug device then try to enable USB debugging. This should work. If so, you can then plug it back into the computer and it should work

Lechery answered 10/1, 2013 at 5:46 Comment(12)

Thanks for the reply. I tried your suggestion. But still am facing the same problem – Pratt 10/1, 2013 at 5:59

That's strange, that should have worked. My next suggestion would simply be to restart the phone and see if that helps. It's not an AT&T phone by any chance, is it? I only ask because I know that they don't allow third party apps. They have to come from the Google Play store...I learned that the hard way. But I wouldn't think they would do anything with the debugging but you never know – Lechery 10/1, 2013 at 6:6

It's not an AT&T phone. And, restarting the phone did not help. – Pratt 10/1, 2013 at 6:11

I had to put it in PTP mode - crazy stuff :) – Declension 24/8, 2015 at 10:51

thanks @slott, after hours debugging (or not debugging) i found your comment :) – Woundwort 19/10, 2015 at 17:40

For a S7 Edge Disable My Knox =) – Alsace 2/4, 2016 at 13:9

AND, once USB Debugging checkbox is checked, hook up USB cable to computer. Then LOOK for dialog box on device with checkbox indicating that it is OK to debug when linked to the computer. Check it. – Diaphoretic 22/7, 2016 at 12:25

Correct answer. Key was to unplug from computer. – Trichloride 22/7, 2016 at 15:42

thanks @codeMagic. But I am a developer in customized BSP. Once i do Fullpackageupdate, i have to factory reset through adb. But problem is it will disable the USD debugging as soon as it flashed. – Caterina 17/6, 2017 at 6:49

Such a simple solution to a stupid problem. Worked for me! Thanks. It is also worth noting that I had to have my phone in MTP connection mode. I think PTP works as well as @Declension mentioned. – Abstractionism 12/2, 2018 at 17:42

And for the less detail oriented among us (me), this is selecting the actual USB debugging option within developer options, not enabling developer options themselves. :) – Misfire 10/4, 2018 at 17:8

@WilliamT.Mallard this is a good point. This answer was written before they started hiding Dev options. – Lechery 10/4, 2018 at 17:10

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38

Finally figured out the solution to the problem, with the help of this post.

When you connect your phone to your PC, using the USB cable, select the mode as PC Software.

Now you should be able to enable USB Debugging.

Pratt answered 10/1, 2013 at 10:13 Comment(2)

Equivalently, go to Settings -> Connectivity -> Default Mode -> PC Software. (Worked for me) – Flyblown 3/1, 2015 at 19:54

On Usb pc connection->Settings-> install pc drivers worked for me. – Electroacoustics 6/6, 2017 at 11:13

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How to Enable USB Debugging for LG Optimus (LGD415). Android version 4.4.2 (KitKat)
Go to this website and download the drivers to your phone:
http://www.lg.com/us/support/mobile-support
For example, mine would be:
http://www.lg.com/us/support-mobile/lg-LGD415RD. Then click on “Software Update & Drivers”

On your phone, you need to enable USB debugging. To do so,
Go to “Settings”.
Go to “About Phone”
Go to “Software Information”
Tap “Build number” five times.
A pop-up will appear saying “You are now a developer”. Your’re not done yet.

Go back to your phone’s home page by pushing the home button.
Go to “Settings”.
Go to “Developer options”
Click the “USB debugging- Turn on debug mode when USB is connected”. A blue checkmark will appear.

(EDIT: If USB Debugging is greyed out, unplug your phone. USB Debugging should no longer be greyed out. If it is not greyed out, check the box and plug your phone into your PC.)

Unplug your phone from your PC. Then plug it back in. On the pop-up, make sure you set it to “Media Sync (MTP)”.

Now your phone will show up on an option when you want to run your app in Eclipse.

(Look for dialog box on phone and agree to allow debugging connection with your computer.)

(Also, go to Control Panel | Device Manager and make sure there are TWO entries for your phone, similar to those expanded below.)

Paz answered 15/6, 2014 at 16:11 Comment(0)

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Unplug your phone from the PC and go to develop options and now here you can enable USB debugging. if you connect USB and try to enable debugging it will not enable and follow TMacGyver is right it works for me using choose PC connection.

Winkle answered 29/1, 2014 at 19:45 Comment(1)

Yup. For LG X Screen, probably work on similar models, K5 etc – Jolty 12/3, 2017 at 15:56

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This worked for me:

Changing USB connection to File Transfer
Turn off developer options
Turn it back on
USB Debugging option came back to life

Glennglenna answered 3/10, 2017 at 10:0 Comment(1)

(samsung galaxy a53) Pull down status bar, change use usb for from charging phone only to transfering files, and the usb debugging toggle in developer options is available again. Works every time. It seems that this "feature" is implemented deliberately instead of begin a bug. – Hord 6/9, 2023 at 10:16

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Unplug your phone from the your computer, then choose PC Software as PC Connection Type. Then go into Developer Options and select USB Debugging

Cletis answered 28/1, 2014 at 2:57 Comment(0)

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Just ran into this on the LG Rebel LTE (LGL44VL). As other answers note, you need to change the USB connection mode to PTP. But my phone's control panels were different from stock Android and didn't have such an option.

The option was hiding in a notification that appeared when I plugged the phone in. I had to open the notification tray and tap a notification labeled

Media Device (MTP)
Tap here for more USB options

Puttergill answered 10/1, 2017 at 21:40 Comment(0)

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Try selecting the default mode as Internet connection.

Go to Settings -> Connectivity -> Default Mode -> Internet Connection.

Now enable the USB Debugging mode under Applications -> Development -> USB Debugging.

It worked for me.

Hoatzin answered 25/7, 2014 at 6:19 Comment(1)

Many solutions I've seen suggest setting the connection to "PC Software", but that was not an option. I tried everything, until I set it to Internet Connection (then Ethernet on the next screen) it just wouldn't recognize as a debuggable device. – Staggard 2/8, 2014 at 23:31

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After countless attempts, I found the following quote:

If you are using My KNOX, you cannot enable USB debugging mode while the container is installed. Unfortunately, you have to root your device ... - continue reading

Furthermore make sure:

your USB-cable works
your connection type is MTP (or PTP in some cases)
to enable USB debugging before pluging your device via USB-cable

I switched to another device without KNOX (not rooted as well) to save time. Maybe this quote will save someone some time. It was the only explanation to me in this case.

Cheers!

Euphemism answered 19/10, 2016 at 15:19 Comment(0)

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FYI My Motorola Xyboard had an "Off" icon at the top of developer options. Once I tapped that it worked.

Alane answered 24/12, 2013 at 19:40 Comment(0)

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Connect the phone to a PC, make sure your developer options are enabled. Then, connection type must be MTP or File Transfer. Charge only does not allow USB debugging(disables the option).

Mouthwash answered 28/9, 2016 at 8:10 Comment(0)

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I had an LG Android phone, and could not get USB to work with Windows, even after trying the following:

Settings > About phone > Software info
Tap 'Build number' 7x, and Activate Developer mode
Settings > Developer options > USB debugging [ON]
Settings > Developer options > Select USB Configuration > MTP
Plug into Windows PC with USB cable.

It DOES show the phone as charging via USB (so the plug must be OK), but it does not show up under 'This PC' in Windows File Explorer as a Device/Drive.. grrr.

Turns out that not all USB cables are the same — some USB cable manufacturers only make their cable with 2wires instead of 4wires, so that they will charge, but not pass data through the cable — so if software solutions do not appear to be working, try changing the USB cable (!).

im writing this here so that maybe someone else doesnt have to waste half an hour figuring out that some USB cable manufacturer doesnt include all 4 wires in their USB cables... grrr.

Crosslegged answered 8/5, 2017 at 6:30 Comment(0)

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I have a feeling that if you have a corporate phone, your corporation IT might also be blocking USB Debugging. I've tried all the different connection modes and the USB Debugging option remains firmly greyed out.

I'm trying to get in to enable the BATTERY_STATS for GSam Monitor Pro, but I think it's disable through the Airwatch MDM software my company makes me use. They pay for it so I guess I'm stuck.

Brahma answered 14/5, 2017 at 16:3 Comment(1)

I had this problem with Airwatch installed – Pemphigus 4/10, 2017 at 7:51

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To enable USB debbuging you have to enable developer option

Go to about device or tablet then
Click build number 7 times to enable developer option
Now go to developer option scroll down until you see USB debbuging option

Now if you have shaded usb debbuging and it is not turning on

Click on the search button on top right corner
Search USB
Click on USB computer connection
Check the MTP

Now you can enjoy your sharing ...

enter image description here

Electrotonus answered 25/11, 2016 at 6:31 Comment(0)

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Just ran into this issue on a current LG phone on a windows computer. Everything from developer options was enabled correctly, but wasn't able to see the device through ABD. Needed install drivers which I was able to do from the phone.

After connecting through USB and allowing the connection, I tapped the USB connection type notification and on the screen where you select the type of USB connection (MTP, PTP, etc..) I tapped the three dot icon in the top right hand corner of the screen and selected to install the PC drivers. After installing the drivers on my PC I was able to connect through ABD to debug.

Lozengy answered 10/6, 2019 at 18:58 Comment(0)

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Go to your settings, search for “Auto Blocker” and turn it off if it is on. Then try enabling USB debugging again.

Dari answered 27/4 at 6:7 Comment(0)

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