Hi I need help plz . I have zgemma h7c. I want to flash open atv 6.5. I downloaded 6.5 nightly build. File name open atv 6.5 zgemma 20201123_recovery_emmc.zip. I extracted the download file and transfer in usb. I flashed and tried to use wooshbuild. I was using putty and after use box is stuck in 49%. I don't know where did I do mistake. I m uploading pic. Plz help me.