Using https://atc1441.github.io/TelinkFlasher.html to flash firmware from https://github.com/atc1441/ATC_MiThermometer
Settings:
0xB1- enable battery display0xFF- display temperature in F0xA3- smiley as comfort indicator0xAE- custom advertising0xFE0x06- advertise every minute0xDF- save settings to flash
Script:
['B1','FF','A3','AE','FE06','DF'].forEach((c,i)=>setTimeout(()=>sendCustomSetting(c),i*1000))