if the flashlight mode have problem. how to repair it?

if the flashlight mode have problem. how to repair it?

what brand and model of flashlight is it and what exactly is the problem you are having with the modes?

Welcome to the forum. We would like to help you, but it will require more information to really be able to help you in your particular situation.

Typically speaking: Mode issues are usually caused by one or more of these factors: dirty threads, dirty switch, battery, battery contact, the LED Driver or a loose wire.

If you are having trouble translating to English, try posting in your native language too. We have members here who can speak just about all the major languages. Maybe they can assist too?

Have a great day.