The software on the V15 is essentially "embedded firmware." It is hard-coded into the machine’s main body to manage the second-by-second countdown on the LCD screen and the reactive suction of the Piezo sensor.
The LCD screen "updates" in real-time as you clean, showing particle counts and remaining run time based on the current power mode.
Interestingly, some reports suggest that the newer V15s Submarine and the original V15 share identical hardware. However, the V15s has specialized firmware that allows it to recognize and power the wet roller head. Because the original V15 cannot be updated, it remains unable to support the Submarine head. Why You Might See "Update" Prompts
You may receive notifications to update the MyDyson™ app on your phone. This adds new support guides, how-to videos, and troubleshooting tools for your V15, but it does not change the vacuum's internal software.
Dyson V15 Firmware Update: Everything You Need to Know While Dyson's smart air purifiers and robotic vacuums frequently receive over-the-air (OTA) enhancements, the operates differently. Because the V15 lacks built-in Wi-Fi or Bluetooth connectivity, it does not support standard firmware updates through the MyDyson™ app .
Sometimes, "renewing" a V15 involves physical cleaning or battery replacement rather than a software patch. Troubleshooting "Software-Like" Issues