So looks like i get a picture but without any backlight. I Had the chance a second board with the case but still no backlight.
So do i have to change the display in this case?

Hi all,

sometimes i'm in need of a charger / tester for very small batteries and even if my multimeter doesn't show anything there is a chance that a smart charger helps to revieve. I'm happy with my Keenstone smartcharger and i made a small mod just to use it with smaller batteries like in smartwatches or even camera batteries with special contacts.

Soldering wires on the charger contacts and using needles as probes. I covered both with a shrink hose with integrated solder.
My first work was to bring my Samsung watch battery back to life with was not recognized...