Hello every S9 user,It is so hard to find the replacement tips/cups/earbuds(same thing but different name), here is some solutions I found buy it:www.msgdigital.com/productdetail.asp?productid=46188, but only...
Here we introducing 2 easy ways to DIY the PCB by fans. The most important work is how to cover the copper by the requirement of circuit on the copper clad board, then etch off the unwanted copper. Step 1:...