It has been replied before on your other post: Lt1 Mini lantern Cheat sheet
There is a link posted by Sofirn : ** BLF LT1M-Mini Project - The little Lantern! ( PM's sent today June 21, 2022)** - #1576 by Sofirn
And in there, there is this link for the manual: Sofirn LT1-Mini English Manual.pdf - Google Drive