Hi @Fixinpcs303 !
Sorry to hear about your experience with the Libre Computer Alta. It’s been a while but would you be willing to move your post to the Libre Computer Alta A311D upgrade thread so we don’t fill up this thread with posts not relevant to the RK3399 upgrade?
Or if you prefer, I could perhaps do so for you?
I realise I haven’t done a great job on this myself but it is the reason why I created the A311D thread…