I guess your best chance to fix your phone and get to your data is to have a repair shop solder a new power button on your motherboard.
See e.g. here. You could probably use one of your Frankenphones for spareparts.
I guess your best chance to fix your phone and get to your data is to have a repair shop solder a new power button on your motherboard.
See e.g. here. You could probably use one of your Frankenphones for spareparts.