So i managed to get some new life out of mine, not 100% yet but progress anyway.
I took the entire speaker apart, top and bottom logic board and the main logic board out of the casing. Then i put these back together outside the casing so everything was gettin decent contact. After this i connected the charger but not yet put the battery in it, white light started flashing and after that i connected the battery to it.
After this i started getting more response: both white lights on top turned on, bluetooth light flashing quickly.
I noticed i could connect the speaker again to my phone but no sound and disconnected quickly, low battery style.
After leaving the speaker connected for a while it did show the battery is charging again…
Sound still not steady but will continue trying to get it stable tomorrow.
Hopefully this can help someone here…