If you tell me the (e.g., router, flight controller, or LED driver), I can add specific technical specs or troubleshooting tips to this draft.
| Issue | Probable Cause | Solution | | :--- | :--- | :--- | | Device won't power on after flash | Wrong firmware variant | Re-enter DFU mode and flash the correct version. If unsuccessful, use a recovery image. | | Bluetooth keeps disconnecting | Cache conflict | Perform a second factory reset and re-pair your devices. | | Signal meter shows "0" on radio | PLL (Phase-Locked Loop) misalignment | Roll back to the previous stable firmware; this exclusive build may not support your region's frequency bands. | | Audio has static noise | Sample rate mismatch | Manually set the USB audio mode to "Exclusive" in your player app (e.g., UAPP or Neutron). | zxdz 01 latest firmware exclusive
: A "clean" dump used for full system recovery via SP Flash Tool. If you tell me the (e
