@Jey-Cee okay, thank you

Re: Steinel L600 CAM
I've bought Steinel Cam light L600. After installing the app for Android on my smartphone and connecting with the cam, the app ask me to update the firmware to the latest version. Unfortunately the proccess of updating was interrupted (I don't know why). Now I can't connect with the app with cam. The app says that device is offline. The reset button doesn't work.
Is it possible to fix it by my own? tell me how to do it ,please