The latest IQOS firmware improves the stability of IQOS electronics for a better performance over time. 
We want to ensure you always get the best heated tobacco experience. Like other electronic devices, IQOS regularly provides firmware update to support your experience. 
For example, the latest firmware upgrade for IQOS 3 DUO will extend the device lifespan. 
From time to time you should upgrade the firmware to keep your IQOS always up to date.

You can visit one of our IQOS stores, where our team will make the upgrade for you.