Galaxy S5 stock browser user agent I have a problem with a site not detecting a stock S5 browser as mobile. I don't own a galaxy S5 so I asked the person who found this issue to send me the complete user agent string, this is what I got:

Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/28.0.1500.94 Safari/537.36

does the S5 browser really not identify itself as running on an android device? Might this be the result of some custom setting (which I'm told never happened)? How else can I identify the S5 browser as being a mobile device?
After some poking around it would appear that in this case the browser is not identifying itself as running on an Android device. I put the useragentstring you supplied into useragentstring.com and in the operating system details field it tells me;

Operating System: 
Linux
running on a Intel CPU
running on a 64 bit processor


If I enter the useragentstring for the stock browser on my HTC One I get:

Operating System: 
Android
version 4.4.2


and on Chrome mobile browser I also get:

Operating System: 
Android
version 4.4.2


I would suggest asking the user of the device to clear data/cache and see if the problem persists. I can't imagine Samsung would have their browser setup like this by default.

EDIT: Also just found here that the useragentstring for the S4 should be something along the lines of;

Mozilla/5.0 (Linux; U; Android 4.2.2; nl-nl; GT-I9505 Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30

which is nothing like what you posted. If anyone on AE with an S5 could post their useragentstring (can get it from here) that would be useful, unless you know anyone else with an S5 where you could check against.

EDIT2: FYI, the useragentstring for my stock browser on my HTC is;

Mozilla/5.0 (Linux; U; Android 4.4.2; en-gb; HTC_One Build/KOT49H) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30

and for Chrome;

Mozilla/5.0 (Lunix; U; Android 4.4.2; HTC One Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.141 Mobile Safari/537.36