I am a complete rookie and have stuck at updating firmware from 4.1 to 4.2, please help.
After hours and hours researching and reading, I guess my problem (Cannot update firmware from 4.1 to 4.2) is caused by not sufficient power supply (I use USB Client SP).
So I am thinking of buying a USB Client DP Module as someone suggested that it can supply more power and might be the problem will disappear.
Now my question is : since D means dual, then I suppose that I need to plug in USB cable AND the Power Jack in order to get the performance. But after searing for the power jack on GHI website, I haven’t found any products and do not know what size and voltage etc. I need to use.
So please point me the right direction