I`m working on SOM-RK3399 devkit for prototyping. And I'm considering to use eflasher for cloning eMMc image of dev-board to another board's one. So, I try to burn eflasher image ( rk3399-eflasher-lubuntu-desktop-xenial-4.4-armhf-20200916.img ) to 64GB class 10 micro sdxc card. I used dd command on ...