How to enable USB debugging on Android
Before we start, though, let’s just clarify what USB debugging is. A feature aimed mostly at developers, USB debugging opens up direct access to the Android system for the Android SDK (Software Development Kit). You can have the Android SDK downloaded on your computer, but unless you have USB debugging enabled, it won't work with your device. With all this in mind - whether you are a developer or someone who has decided to flash a custom ROM, or simply root your phone - here is how to enable USB debugging on different versions of Android:
How to enable USB debugging on Android KitKat and Jelly Bean (4.2 and later)
1. Navigate to Settings > About Phone > scroll to the bottom > tap Build number seven (7) times. You'll get a short pop-up in the lower area of your display saying that you're now a developer.
2. Go back and now access the Developer options menu, check ‘USB debugging’ and click OK on the prompt.
That’s it, you’re done!
You can now enable and disable it whenever you want by going into Settings > Developer Options > Debugging > USB debugging
How to enable USB debugging on Android 4.1 and 4.0
2. Once you have enabled developer options, you will be able to check the USB Debugging field. Simply scroll down to it and check it - a pop-up window will notify you that you’re now a developer. That’s all it takes!
How to enable USB debugging on Android 2.3 Gingerbread and earlier
Enable it - as simple as that!
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2. PapaSmurf (Posts: 8839; Member since: 14 May 2012)
This. Only turn it on when you're going to need it.
6. jroc74 (Posts: 5192; Member since: 30 Dec 2010)
I'm curious too. I've been rooting, running ROMs since the Droid 1 days...I have been out of the loop over the past few years....is there any issues with leaving it enabled?
9. andynaija (Posts: 485; Member since: 08 Sep 2012)
I think (might actually be another reason) it's turned off so apps or a computer (if USB connected) cannot randomly have permissions to the system.
Not an android wiz but I have a little basic knowledge.
3. Jovan (Posts: 3; Member since: 14 Mar 2014)
As an idiot, I have a question. My Phone (Xperia ray) constantly shows low memory messages. I have noticed that the updated apps are installed as well as the ones embedded into the ROM. e.g. Google Play (20Mb) is installed as well as Android Market, The Facebook update install takes another 40MB of space. Would enabling USB Debugging mode allow the updates to install over the original ROM program?
7. fbermudez86 (Posts: 6; Member since: 01 Sep 2012)
Intregrate update into ROM using Titanium Backup xD
8. skymitch89 (Posts: 1098; Member since: 05 Nov 2010)
I see no issues with leaving USB Debugging on after enabling it. I usually leave it on so that if & when I go to use my tethering app I don't need to hassle with my phone.
10. roscuthiii (Posts: 1863; Member since: 18 Jul 2010)
PhoneArena. what is with these bottom of the barrell Android beginner articles lately?
It is understandable that not every user is going to have more advanced knowledge and could certainly use the information provided, but an actual Android: How To section would probably work better than these sporadic posts which can be overlooked. I say overlooked because even though there is filter with clearly defined tabs of which Android is one, it seems not to actually work. So, anyone that does come to PA looking for this info is going to have to go on a hunt to find it.
Maybe in another browser the filter works properly? Perhaps some settings changes to my current? Either way... ain't working now.