Grandstream Networks GHP6 Series Administration Manual page 39

The factory reset will immediately start after you click OK.
Warning
Once the process of resetting to factory settings has started, it cannot be cancelled and all the configuration will be lost. To
avoid losing your configuration, please back it up first.
HANDLING METHOD FOR PHONE FAILURE STARTUP
State definition of the phone startup phase
Phone startup includes the following four stages.
1. The U-boot is started successfully, and MWI LED and MUTE LED are always red.
2. Linux system starts successfully, MUTE LED is off, and MWI LED is yellow constant.
3. The upper application is successfully started, MUTE LED and MWI LED are off, and the status of the follow-up lights is
controlled by the behavior of the phone itself.
4. Play startup music after a successful startup.
Introduction to the phone recovery process
1. The phone cannot be powered off during the upgrade process. If the upgrade fails due to power failure due to force
majeure or other reasons, the partition file of the phone will fail to read and write, and the phone cannot be started.
Therefore, a Recovery mechanism is provided to restore your phone to the maximum extent.
2. User needs to set up a TFTP server, set the address to 192.168.0.2, and store two files under the server address,
ghp610recovery.bin, and ghp610fw.bin. Please download these two files from the official website.
3. During the startup phase of U-boot, some recoverable partition files will be verified. If the verification of partition files fails,
the MWI LED will flash yellow for 3 seconds to enter the recovery process.
4. At this time, the device IP will be automatically set to 192.168.0.3, and a TFTP request will be sent to the fixed server
192.168.0.2, requesting the file ghp610recovery.bin.
– If there is no server, it will still request, and the yellow light stays always on.
– If the request fails, the yellow light is off, the MWI LED red light flashes for 3 seconds, and the Linux system is blocked and
cannot be recovered.
– If the request is successful and the loading operation continues, the yellow light goes out, the MWI LED green light flashes
for 3 seconds and the temporary Linux system starts to boot.
5. When the temporary Linux system starts up, the MWI light is always yellow. The system sets the IP address as fixed
192.168.0.3, and sends a TFTP request to the fixed server 192.168.0.2, requesting the file ghp610fw.bin for upgrading. The
upgrade process takes about 5 minutes, during which the MWI LED flashes red.
Factory Reset Confirmation