These are all parts of one cell phone brand to fall into the scene in fire conditions, scorch. Ignite explosive methods used with mobile phones, to make fire come up the same way as Patong.
Found a piece of mobile phones fall at the scene of the fire was burnt down. Using a bomb detonated with cell phones. To fire up the same kind of Patong.
We also found mobile parts, one brand in the scene in the picture is the fire scorched. Expected approach to detonate with mobile phones. In order to fire up come up with the same Patong.