LYWSD03MMC back from Zigbee to Bluetooth

Via Telink Flasher v7.4
I loaded the software onto the thermometer with one click.
Unfortunately, after a week the battery dropped to 0%. The firmware version of this thermometer is: 3001-0114.
How can I go back to the BT version?

I noticed that thermometers with firmware version:
3001-1006 hold the battery better. I would like to upload this software to that thermometer.