// SUPPORT PORTAL — BATCH 01
Setup, error codes, and firmware — everything for your BX-09 telemetry module.
// 01 QUICK START & MOUNTING
STEP_01
Snap-on latching
Align the mount rail with the BX-09 spine and press until the latch clicks. No tools, no adhesive.
STEP_02
USB-C power
Charge with any USB-C cable. A breathing white LED means charging; solid means full.
STEP_03
BLE pairing
Hold SYNC for 2s. The display finds your BX-09 automatically — no phone or app required.
STEP_04
Real-time RPM
Launch. Live RPM streams instantly, with the last 8 shots stored in on-device history.
// 02 TROUBLESHOOTING MATRIX
Filtered live by the search bar above — try “BLE” or “FLASH”.
Display fails to pair with launcher
ERR_BLE_TIMEOUT
PROBABLE_CAUSE
BLE handshake exceeded 15s — launcher out of range, launcher battery low, or another device holds the connection.
STEP_BY_STEP_FIX
1. Power-cycle the BX.Display. 2. Close any Beyblade app holding the BLE link. 3. Hold the launcher within 30cm and re-pair. 4. If it persists, hold SYNC for 5s to clear the pairing cache.
LED_/_SCREEN_STATUS
LED blinks blue ×3, screen shows BLE SEARCHING
Firmware update fails mid-flash
ERR_FLASH_FAIL
PROBABLE_CAUSE
USB-C connection interrupted during write, or a low-quality charge-only cable was used.
STEP_BY_STEP_FIX
1. Use a data-capable USB-C cable. 2. Connect directly to the computer, not a hub. 3. Re-open the Web Flasher and retry — the bootloader is protected and cannot be bricked. 4. If the retry fails, hold BOOT while reconnecting.
LED_/_SCREEN_STATUS
LED solid red, screen shows FLASH ABORT 0x2E
RPM readout shows 0 or freezes
ERR_TELEMETRY_NULL
PROBABLE_CAUSE
Telemetry stream dropped — launcher moved out of range mid-session or launcher firmware is outdated (JP/HK versions differ).
STEP_BY_STEP_FIX
1. Keep the display within 5m of the launcher. 2. Verify the launcher is an authentic BX-09 (JP/HK). 3. Restart the session from the display menu. 4. Update BX.Display firmware to v1.0.4 or later.
LED_/_SCREEN_STATUS
Screen shows RPM --- with grey signal icon
Device not detected by Web Flasher
ERR_SERIAL_DENIED
PROBABLE_CAUSE
Browser lacks Web Serial support, or the serial port permission was dismissed.
STEP_BY_STEP_FIX
1. Use Chrome or Edge on desktop — Safari and Firefox do not support Web Serial. 2. Click CONNECT and select the BX.Display port in the browser prompt. 3. On Windows, install the CP210x driver if no port appears.
LED_/_SCREEN_STATUS
LED breathing white, screen shows USB IDLE
Display won’t power on
ERR_PWR_NONE
PROBABLE_CAUSE
Battery fully depleted, or the snap-on mount is not fully latched (power contact sits in the latch rail).
STEP_BY_STEP_FIX
1. Charge via USB-C for 15 minutes. 2. Remove and re-latch the mount until you hear a click. 3. Check the latch rail for debris. 4. If the LED still stays dark, contact support.
LED_/_SCREEN_STATUS
No LED, screen dark
Shot history missing entries
ERR_HIST_TRUNC
PROBABLE_CAUSE
The 8-shot buffer rolled over, or shots were fired during a BLE reconnect window.
STEP_BY_STEP_FIX
1. History stores the last 8 shots by design — export before long sessions. 2. Wait for the CONNECTED icon before launching. 3. Update to firmware v1.0.4 which shortens the reconnect window.
LED_/_SCREEN_STATUS
Screen shows HISTORY 6/8
// 04 WEB SERIAL FLASHER
No apps, no drivers on macOS — the flasher runs entirely in your browser via the Web Serial API. Interactive demo below.
FIRMWARE_FLASHER
v1.0.4-prod
> STATUS: USB_IDLE — waiting for device
> Connect BX.Display via USB-C, then press CONNECT. Requires Chrome / Edge (Web Serial).
[ OPEN FLASH PORTAL ➔ ]