At Wit's End

[jasonumd]

Hi everyone. Bought a PBP a couple of months ago that because useless out of the box. First it arrived with a broken screen. Was sent a replacement and got it booted. Performed updates and had the black screen issue. Failed at fixing that for some time. Recently tried to get Kali on it which would be extremely useful for me. I have it booting from the SD. But it looks like I deleted a partition from my eMMC and I can't figure anything out. I'm fairly tech savy but I just can't wrap my head around getting the eMMC built back up. Is there a guide available for zeroing out the eMMC and starting from scratch? I'd appreciate any help. I have scoured the forums and tried various things but haven't been successful and/or haven't found what I needed. It'll probably just go in a drawer until I decide to get rid of it unless I can find this help.

Thanks so much for any guidance you can provide.