I've been saying this for years, ever since I got into modding, back in the PS1 era.
If you want to mod your device, which ever device it is, you should always go straight to the source of the information and follow a guide from the people that made the mod possible.
Or at least follow a guide on the site the mod originated from.
If you don't know where the mod originated from, then it's best to get all the information you can from different sources, Google is your best friend when it comes to modding.
I've always said to read written guides first, make sure you know what to do, step by step, before you even begin. If your not sure about a step, or get stuck, then you can ask for help on the Guide Thread. That's why these forums exist.
If you follow a video guide, and need help, it can take hours, days, even weeks for someone to reply to your video comment. And even then, it might just be someone that watched the same video, and has no real idea if his suggestion will help you. Because video guides rarely ever tell you what each step does, or what your actually doing in each step.
They tell you to do this, then do that, but never explain why "Do this" or why "Do that". So you never learn anything. Your just blindly following someone, hoping that everything works out well. Then when you end up with a paperweight, you wonder what went wrong.
But if you knew what each step does, how it effects the device, and how to take steps to prevent issues, you might be able to recover from the problem. Or at least you will be able to post on the forum and give a nice detailed post on what you did, so people can point you in the right direction to help you.