Six icons

[eddiecoyle]

I've been wondering what the fourth and fifth button toggle (between GPS and brightness), and I haven't been able to find an answer. Thanks in advance!

 

[chanchan05]

From left to right i think thats wifi, bluetooth, gps, data, sync and brightness.

 

[Fanjita]

Just going on the symbol, although I've never seen it before, the 4th from left looks like read/write to SD card?

I agree on 5th being sync though.

 

[El Presidente]

The 4th icon is the definitely the data switch (used for turning your mobile network on/off).