Hi thank’s for your help. I rollback two custom modification ans it’s working again :

• reduce #define HOLD_TIMEOUT from24 to 20 & reduce #define RELEASE_TIMEOUT from 18 to 16
• Apply #2027884 & #2027883 correction suggestion from https://bugs.launchpad.net/flashlight-firmware/+bugs?orderby=importance&start=0

I will investigate which of this two changes cut my turbo off

Thank you, I fix it. Does Momentary Turbo 3H/4H work four you?