Hi, Newbie here.  I have just replaced the battery in my Samsung Note 10.1 for the first time.  I followed a video on You Tube.  Now when I switch it on I just get the first Samsung logo and it won't boot. Also it won't charge up.  I just get the grey battery logo.  Can anyone offer any help please, the simple version please.  I fear I will have to take it somewhere for repair!  Thanks in advance
				
			 
	