| Button | Single Press | Long Press (3 seconds) | | :--- | :--- | :--- | | | Cycle display modes (SPD → DST → ODO → MXS → AVS → TM → CLK) | Reset current trip data (DST, TM, AVS, MXS) | | Right (B) | Turn backlight on (if equipped; some variants) | Enter setting mode (wheel size, clock, unit) |
: Tracks total lifetime distance traveled across all rides. This cannot be reset unless you remove the battery.
Before setup, ensure you have:
Roll the bike forward in a perfectly straight line until the valve stem completes exactly one full rotation and returns to the bottom. Mark the floor at this second location.
Lost your Echo J7 manual? Learn how to set up, calibrate, and use your Echo J7 bike computer. Complete guide for speed, odometer, time, and troubleshooting. echo j7 cycle computer manual
| Problem | Likely Cause & Fix | |---------|---------------------| | No speed reading | Magnet misaligned / battery dead in sensor / distance >70 cm | | Jumpy speed | Magnet passes too slowly or sensor gap too wide | | Screen dim | Replace CR2032 in computer | | Data resets randomly | Battery not seated firmly or vibration loosens contact | | Wrong speed | Wheel circumference set incorrectly |
Press the to confirm each digit and move to the next. Choose your preferred speed metric: KM/H or M/H . | Button | Single Press | Long Press
Press the to cycle through the primary data screens: DST →right arrow MXS →right arrow AVS →right arrow TM →right arrow CLK . Resetting Trip Data