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 discussing vaping performance, many people focus on battery size or wattage numbers.However, the true foundation of consistent flavor is voltage control — and this is where SXmini devices powered by YiHi chips make a difference. Voltage control determines whether your device feels powerful at full battery but weak later — or smooth and consistent from the first puff to the last. 1. Battery Voltage and Puff Performance In every vape device, the battery voltage naturally drops as it discharges: • Full battery: approximately 4.2V• Mid battery: approximately 3.7V• Low battery: approximately 3.3V If the device does not regulate voltage properly, output power decreases as voltage drops. This is why many standard vape devices feel strong when fully charged but gradually become weaker during use. SXmini devices use advanced YiHi chip technology to manage this voltage change intelligently. 2. What Is DC-DC Voltage Regulation? DC-DC regulation converts one DC voltage level into another stable DC voltage. There are three primary types: • Buck (Step-Down): lowers voltage when battery voltage is higher than required• Boost (Step-Up): increases voltage when battery voltage is lower than required• Buck-Boost (Step-Up + Step-Down): adjusts voltage in both directions Buck-Boost is the most complete solution because it stabilizes output across the entire battery range. Most SXmini devices integrate true Buck-Boost DC-DC regulation developed by YiHi, ensuring stable output from full battery to low battery. 3. What Is PWM and Why Is It Different? PWM (Pulse Width Modulation) does not truly change voltage.Instead, it rapidly switches power on and off to simulate an average output. • Advantage:…