Panasonic Lumix DC-G100 Operating Instructions Manual page 471

Flash
The flash does not fire.
• The flash becomes unavailable in the following cases.
– The flash is closed.
– Flash set to [
• The flash does not fire when using the following functions:
– [ ] mode
– Video recording (240), [4K PHOTO] (164), [Post Focus] (178)
– [ESHTR] (204)
– [Silent Mode] (203)
– [Filter Settings] (226)
] (Forced Flash Off). (231)
16. Materials
471