# Edl-1 bt module

**URL:** <https://community.ecumaster.com/t/edl-1-bt-module/2293>\
**Category:** GENERAL\
**Tags:** how-to\
**Created:** [September 13, 2024, 9:54am UTC](https://community.ecumaster.com/t/edl-1-bt-module/2293 "2024-09-13T09:54:21Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![konstas21](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/konstas21/32/1829_2.png) [@konstas21](https://community.ecumaster.com/u/konstas21)\
**Post date:** [September 13, 2024, 9:54am UTC](https://community.ecumaster.com/t/edl-1-bt-module/2293/1 "2024-09-13T09:54:21Z")

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hello,i have a problem with my edl the blue light flashing always.I tried to upgrade software but where is the root folder?I drag the firmware to the main folder when the sd open and still nothing happed ? can you please give me some advice ?