Midv-679 May 2026

alert tcp $EXTERNAL_NET any -> $HOME_NET 8443 (msg:"MIDV-679 - Java serialized object upload attempt"; \
 flow:to_server,established; \
 content:"POST"; http_method; \
 content:"/api/v1/metadata/import"; http_uri; \
 content:"application/x-java-serialized-object"; http_content_type; \
 classtype:attempted-admin; sid:2026001; rev:1;)

| Symptom | Possible Cause | Fix | |---------|----------------|-----| | Device does not power on | 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. |

Error Codes – When a critical fault occurs, a numeric code appears on the splash screen after reboot. Refer to the table below: MIDV-679

| Code | Meaning | Action | |------|---------|--------| | 0x01 | Power‑rail undervoltage | Check power source, replace adapter. | | 0x0A | NAND flash read‑fail | Re‑format storage (midv-storage --format). | | 0x1C | Wi‑Fi module timeout | Re‑flash Wi‑Fi firmware (midv-wifi --reflash). | | 0x2F | Sensor bus error | Re‑calibrate sensors (midv-sensor --calibrate). | | 0xFF | Watchdog reset (software crash) | Update firmware, report logs to support. | Monitoring & Detection :

| Item | Qty | Check | |------|-----|-------| | MIDV‑679 main unit | 1 | ✔ | | 12 V DC power adapter (18 W) | 1 | ✔ | | USB‑C charging cable (1 m) | 1 | ✔ | | Ethernet patch cable (1 m) | 1 | ✔ | | Quick‑start guide (paper) | 1 | ✔ | | Warranty card | 1 | ✔ | | Optional Li‑ion battery pack | 0‑1 | (if ordered) | | M.2 SSD (pre‑installed) | 1 (optional) | ✔ | | Micro‑SD card (16 GB) | 1 (optional) | ✔ | | Symptom | Possible Cause | Fix |

alert tcp $EXTERNAL_NET any -> $HOME_NET 8443 (msg:"MIDV-679 - Java serialized object upload attempt"; \
 flow:to_server,established; \
 content:"POST"; http_method; \
 content:"/api/v1/metadata/import"; http_uri; \
 content:"application/x-java-serialized-object"; http_content_type; \
 classtype:attempted-admin; sid:2026001; rev:1;)

| Symptom | Possible Cause | Fix | |---------|----------------|-----| | Device does not power on | 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. |

Error Codes – When a critical fault occurs, a numeric code appears on the splash screen after reboot. Refer to the table below:

| Code | Meaning | Action | |------|---------|--------| | 0x01 | Power‑rail undervoltage | Check power source, replace adapter. | | 0x0A | NAND flash read‑fail | Re‑format storage (midv-storage --format). | | 0x1C | Wi‑Fi module timeout | Re‑flash Wi‑Fi firmware (midv-wifi --reflash). | | 0x2F | Sensor bus error | Re‑calibrate sensors (midv-sensor --calibrate). | | 0xFF | Watchdog reset (software crash) | Update firmware, report logs to support. |

| Item | Qty | Check | |------|-----|-------| | MIDV‑679 main unit | 1 | ✔ | | 12 V DC power adapter (18 W) | 1 | ✔ | | USB‑C charging cable (1 m) | 1 | ✔ | | Ethernet patch cable (1 m) | 1 | ✔ | | Quick‑start guide (paper) | 1 | ✔ | | Warranty card | 1 | ✔ | | Optional Li‑ion battery pack | 0‑1 | (if ordered) | | M.2 SSD (pre‑installed) | 1 (optional) | ✔ | | Micro‑SD card (16 GB) | 1 (optional) | ✔ |