On newer phones the manufacturer hide away the debug option, maybe to prevent regular users from enabling it without knowing what risk it could expose.
On the Samsung S5 you have to navigate to the System Settings / About and click 5 times on the About label.
Some things did not change since the early coding days with Linux and Android Phones , you still need to tinker with system files to allow USB access to the phone. Without the below steps you get “no permission” and offline errors in the Android Device Monitor.
Android Phone Settings
Out-of-the-box the phone does not allow debugging. You need to find the developer options under phone settings and specifically allow USB debugging.
I believe it makes no sense to buy a ~ 900.- SGD (3g, GPS), respectively a 500.- SGD (wifi only) device running Android 2.2 without any chance even to update to 2.3, such as the Galaxy Tab, the same time Galaxy is releasing already the new 3.0 based models. So how to find a cheap device that can compete with the Galaxy Tab ?
After buying one Android 10″ Tablet from DHGate.com without problems I decided to look for a second one, a 7″ device. Certainly not easy to find a good device among the many offers on the trading platform, but I was lucky enough to choose this PC-7006 1Ghz device for 223.- U$ (incl. shipping) from the dealer avatar2012:
As expected, at the Mobile World Congress 2011 hardware manufacturers launched their soon to be available Android 3.0 powered tablets. Samsung presents the Galaxy Tab Sucessor, not “2” but Galaxy Tab 10.1. Certainly it will hit Singapore before end of April as the usual lock-in package of the local telcos.
I am still puzzled by a couple of things:
Size goes up (even weight remains small)
While 7″ is just nice to carry and use, it fits in a side pocket, but is still bigger than the usual small size mobile phone and allows more or less serious usage. But 10.1″ is competing with a netbook, or you just try to be a little BIGGER than the iPad ? It does not fit in a side pocket.
No HDMI connector ?
Why was it removed ? The device is capable too run FullHD movies and you lat me look at it in 1280×800 ? Whats the point ?
No (mini) SD Card slot ?
Are you going the same way as Apple ? I cant extent the available memory and there is no way to just slot in a memory card to read files from a camera or a notebook ? I must use the USB port or wireless ? You want to play FullHD and how do I copy a DVD content to the device ?
Dual camera ?
What do you need that for ? Hold the tablet in front of you to make pictures ? How wired is that ? Can you run both at the same time ?
No standard USB port ?
Of course slim is nice, but at a time when more companies try t follow standards you also come up with your new private connector ? More wire junk per device in my pocket !
Competitive price ?
Sorry, around 1000.- SGD and beyond is not competitive.
I think it the presence of an upcoming Android 3.0 made Samsung jumped on the bandwagon and quickly push out a new device, just 6 months after the previous Galaxy Tab.
I see another problem for Android 3.0 and any devices, besides the split-up between 2.3/2.4 and 3.0, more apps will be available will soon that are hungry for CPU horsepower and resources leaving the regular mobile phone behind or even create unhappy app users know being aware of the lack of their devices power. A minimum hardware requirements like for PC games will soon be there, the app market will split up too.