Yeelight LED lightstrip 1s Turkey white light

I purchased my Yeelight LED lightstrip 1s from Xiaomi store on AliExpress. I reside in Turkey and would like to have the white light option. Also I am having issues where I joined a couple strips together one side is sometimes displaying one colour while the other side another. Mi ID: 6296591733

The 1S color lamp belt itself does not support white light. The reason why the color of the extension side is not uniform is that the connection of the extension part is not secure. The connection should be fixed with a buckle.