Hi I have a A1708 with function keys. After dead logic board I ordered a used one of eBay. Replaced and booting up. First completely erased disc and made full install of delivered high Sierra. Then I saw that no battery is detected (PPT001 in diagnose). Boots up and schows 100% and X in battery symbol. At a short moment it showed battery 0%. Made SMC reset…nothing. High chance of high discharged status of the battery but my usb c tool only shows 0,5A when running…so it’s definetely not charging.

what is the problem with “new” logic board and old battery ? Is there any workaround? Thx on advance

Looks like there is something wrong with dates?

Had the Problem with date at new installation of High Sierra with “CERT” failure because date was set to 19xx.