How do I reset emmc? I am having a very hard problem

Banana Pi Amlogic design
1

I am using BPI-M5. I burned an image on emmc without much thought. But I made a mistake and I want to delete the emmc image. I read on the wiki that I need Uboot for that, but do I need such an adapter for that? If so, please give me another link or a substitute because the product link is broken. If so, please let me know if there is another link or substitute.I’m a beginner and don’t understand English, so sorry if I’m irritating you…

2

I also can’t connect the CS8822 wifi module, does it only work with the latest os of ubunth? I don’t know how to reconfigure DTBoverlay in the first place. How do you do it? There are so many things I don’t understand that I am about to cry, I would be happy if you could help me with just one thing.

3

Can this link be substituted for the USB2Serial-Adapter in the above link? I am concerned and would like to do the same work as the link. can i use the same driver if i am using cp2102?