Midv-679 Jun 2026

| Symptom | Possible Cause | Fix | |---------|----------------|-----| | | Power cable not seated, adapter fault, internal fuse blown | 1. Verify power adapter output (12 V, ≥ 1 A). 2. Try a different adapter. 3. If still dead, contact support – the internal fuse may need replacement (service only). | | Touchscreen unresponsive | Screen protector interfering, firmware glitch | 1. Remove any screen protector. 2. Reboot (hold power for 5 s). 3. If persists, re‑flash UI ( midv-fw-update -u ). | | Wi‑Fi never connects | Wrong password, SSID hidden, MAC filter | 1. Double‑check password. 2. Ensure SSID broadcast is enabled. 3. Add the device’s MAC ( Settings → Network → MAC ) to the allowed list on the router. | | Log files stop after 10 min | Storage full, auto‑rotate limit reached | 1. Delete old logs ( Settings → Storage → Manage ). 2. Increase log size limit under Log Capture → Advanced . | | USB‑C device not recognized | Insufficient power, incompatible class | 1. Use a powered USB hub. 2. Verify the peripheral is USB 2.0/3.0 class‑compliant. | | Battery drains quickly | Battery aging, high screen brightness | 1. Lower brightness to ≤ 50 %. 2. Disable Bluetooth if not needed. 3. Replace battery after 500 cycles. |