BambuHelper v2.2 Release Notes

Settings backup & restore (NEW)

Export settings - download all configuration as a JSON file from the web UI
Import settings - upload a previously exported JSON file to restore configuration after reflashing
Cloud token is excluded from export for security - re-login required after import
Partial imports supported (missing fields keep current values)

Shimmer effect - a bright highlight sweeps across the progress bar during printing
Runs at ~40fps independently of the main display refresh
Optional - enable via checkbox in Display settings

Breakout-style animated clock - classic Arcanoid game plays on the clock screen
Colored bricks, bouncing ball, auto-tracking paddle
On minute change, digits break apart with fragment explosion effects and bounce back
Runs at ~50fps independently of the main display refresh
Optional - enable via checkbox in Display settings

Timezone regions replace the old UTC offset dropdown - select your region (e.g. "Central European (Poland, Germany)") and DST switches automatically
No more manual DST checkbox - POSIX timezone rules handle transitions
Existing settings migrate automatically on first boot after update
48 regions covering Europe, Americas, Asia-Pacific, Middle East & Africa

12h/24h time format - toggle between 24-hour and 12-hour (AM/PM) clock display

Timezone and clock format moved from WiFi section to Display section - changing these no longer requires a device restart
Show WiFi password - checkbox to reveal password when entering WiFi credentials
Diagnostics moved to the bottom of the page
Section order: Printer > Display > Multi-Printer > WiFi & System > Diagnostics

Connecting screen text alignment - connection info (mode, serial/IP, elapsed time) was rendered off-center due to a text datum bug; now properly centered with larger font
Gauge Colors card styling - Gauge Colors section in web UI was missing card border/padding due to a premature closing </div>; now renders inside the Display card correctly
Background color fix - custom background colors (e.g. pure black) now apply consistently across all UI elements; previously some areas used the default dark navy color creating visible gray bands
Firmware version in boot log - serial output now shows BambuHelper v2.x Starting for easier troubleshooting
Serial number validation - empty serial number is now caught before MQTT connection attempt, preventing silent subscription to wrong topic (device//report)
Printer configuration validation - web UI warns when required fields (serial, IP, access code) are missing
MQTT diagnostic tool (tools/mqtt_test.py) - standalone Python script for testing printer MQTT connectivity outside of BambuHelper