The puff counter function helps users track device usage more accurately.Different models and firmware versions may apply different reset methods. This guide summarizes the puff counter reset procedures across devices and chipsets for easy reference. • SXmini SL Class V2 Enter Menu → Select “Puff Reset”. • SXmini G Class V2 Enter Menu → Select “Puff Reset”. • YiHi SX600J Chipset Charging the device automatically resets the puff counter. • YiHi SX735J Chipset Enter Menu → Select “Puff Reset”. • SXmini Puremax 2 • Firmware before 20250227: Charging resets the puff counter.• Firmware 20250227 and later: Long press the fire button for 5 seconds without pod installed. • SXmini MQ Class • Version V49 and earlier: Charging resets the puff counter.• Version V50: Long press the fire button for 5 seconds without atomizer attached. • SXmini Tinder Wave Enter Menu → Select “Puff Reset”. • SXmini MQ Plus Long press the fire button for 5 seconds without atomizer attached. • SXmini Nex I Long press the fire button for 3 seconds without pod installed. Firmware Version Information Firmware version details may appear in different locations depending on the device model: • Inside the system menu under version information• Briefly displayed on the boot screen when powering on If you are unsure about your firmware version, please refer to the product manual or contact official support.

When people search for better vape performance, they often ask: • Why does my vape feel weaker when battery is low?• Why is flavor not consistent from full charge to empty?• What is voltage control in vaping? These problems are directly related to voltage regulation inside the device. Many users focus on wattage numbers or battery size.But in reality, stable voltage output is the key to consistent flavor. This is where SXmini devices powered by YiHi chips make a real difference. 1. Battery Voltage and Puff Performance In any vape device, battery voltage naturally drops during use: • Full battery: around 4.2V• Mid battery: around 3.7V• Low battery: around 3.3V Without proper voltage control: • Full battery → stronger hits• Lower battery → weaker vapor and flavor This is why many users feel their vape performance changes over time. SXmini devices use advanced YiHi chip technology to keep output stable, even when battery voltage drops. 2. What Is DC-DC Voltage Regulation? DC-DC voltage regulation is the core of modern vape power management systems. It converts battery voltage into a stable output voltage. There are three main types: • Buck (Step-Down)• Lowers voltage when battery is too high • Boost (Step-Up)• Increases voltage when battery is too low • Buck-Boost (Full Range Regulation)• Adjusts voltage both up and down 👉 This is the most important technology for consistent vape performance. Most SXmini devices use true Buck-Boost regulation, allowing stable output across the entire battery range. 3. PWM Vaping Explained (Why It Feels Different) PWM (Pulse Width Modulation) is commonly used in…