Hello i am wondering if and when we are getting marlin 2.1 on the sv03, the sv03 seems a little underapreciated and i think it needs the update, also the firmware download google drive is blocked and says i need permision, can you please make it public 
Sorry for causing you trouble. 
There is a problem with our website, we are dealing with it. Could you PM Sovol3d on FB or email info@sovol3d.com to ask for the firmware? My colleague will help you. 