IMO with many of these 'upgrades', there is ONE shop- usually a chinese name you cannot read- that makes the part. Then there are several vendors that sells them into various markets- Asia, EU, Russia, US.


Like AVIN Usa...they dont make it, stuff is engineered and made in China (Shenzhen Kinylywin Electronics Co., Ltd). Different companies sell it in the EU.




Point is that shopping carefully, comparing product offerings between vendors, may in many cases be pointless- since it is the same. Only the 'wrapper' is different. (Which is not without value...)