SELF-SERVICE KNOWLEDGE & TROUBLESHOOTING CENTER
Authoritative engineering solutions for common server deployment and operational scenarios
WI-FI CONNECTIVITY & RECOVERY HOTSPOT
NETWORKING & RECOVERY
Instructions for router migration, lost Wi-Fi uplinks, or locating appliance IP:
01
• Connect to Fallback Hotspot PreCores_
When the primary Wi-Fi uplink drops for more than 90 seconds, the appliance autonomously broadcasts a recovery SoftAP without rebooting active workloads.
02
• Access Recovery Portal at 192.168.43.1:8080
Connect your laptop or mobile to the hotspot (password on bottom label) and navigate to http://192.168.43.1:8080 to rescan and join a new Wi-Fi network.
03
• Wireless Emergency SSH Recovery
Once connected to the recovery hotspot, connect directly to 192.168.43.1 port 22 using your Master account without requiring physical Ethernet LAN cabling.
Recovery SoftAP automatically shuts down once primary Wi-Fi uplink is re-established
ACCESS CONTROL & PORTAL PASSWORD RECOVERY
AUTHENTICATION & ACCESS
Convenient password administration and secure access recovery without interrupting running workloads:
01
• Change Password via Web Portal Settings
Easily update your Web Portal administrative credentials at any time directly in System Settings on Web Portal (:8080).
02
• Emergency Recovery via Master SSH
If locked out of the Web Portal, connect via Master SSH (ssh @ -p 22) over LAN or recovery SoftAP and use the precore-env internal utility to restore access.
03
• 100% Preservation of Docker Containers
Credential rotation only refreshes the authentication vault, guaranteeing zero formatting or data destruction of your running containers and databases.
Master SSH accounts are strictly provisioned during Setup Wizard to guarantee your ultimate root control
SYSTEM RESCUE & SERVICE RESTORATION
RESTORE & MAINTENANCE
Rescue workflow when container conflicts occur or an appliance requires clean restoration:
01
• Sealed Firmware OTA Flashing via Web Portal
Operating system firmware is proprietary, sealed, cryptographically verified, and applied exclusively inside Web Portal (:8080); raw ROM images are never distributed externally.
02
• 1-Click Offline Backup Restore (.pcl-bak)
Use the built-in Backup & Restore feature in Web Portal to restore your encrypted .pcl-bak backup archive, returning all services to pristine state.
03
• Official Engineering Rescue for Deep Partition Faults
If deep filesystem errors prevent Web Portal access, dispatch an RMA/rescue ticket for laboratory engineers to inspect and restore the appliance within 7 working days.
PreCores OS firmware is proprietary and strictly verified via cryptographic signatures
DIRECT DC POWER & THERMAL VITALS
HARDWARE STANDARDS
Critical hardware standards to ensure maximum longevity and 24/7 edge uptime:
01
• Direct DC Power Standards (9V - 24V ≥ 2A)
The appliance operates battery-less directly via a 5.5x2.1mm DC barrel jack. Never use 5V USB chargers or under-current adapters that cause brownouts.
02
• CPU Thermal Headroom & Active Cooling Fan
Monitor real-time temperatures on the Web Portal Dashboard. Ensure ventilation intakes remain clear and cooling keeps operating thermals below 65°C.
03
• Hardware Diagnostics via Web Portal & dmesg
Inspect system journals in Web Portal :8080 or run dmesg to catch early PMIC voltage drops or flash wear indicators before failures occur.
100% lithium battery-free design ensures absolute thermal safety for 24/7/365 edge uptime