Restore Factory Default Setting - Grandstream Networks 286 User Manual

Restore Factory Default Setting

WARNING! Restoring the Factory Default Setting will DELETE all configuration information of the
phone. Please BACKUP or PRINT out all the settings before you approach to following steps.
Grandstream will not take any responsibility if you lose all the parameters of setting and cannot
connect to your VoIP service provider.
Step 1:
Find the MAC Address of the device. It is a 12 digits HEX number located on the bottom of the
unit.
Step 2:
Encode the MAC address. Please use the following mapping:
0-9: 0-9
A: 22
B: 222
C: 2222
D: 33
E: 333
F: 3333
For example,
"0002228200333395".
Step 3:
To perform factory reset:
- Pick up the headset. Dial "***" or press the LED button for voice prompt.
- Enter "99" and get the voice prompt "Reset".
- Enter the encoded MAC address of the device.
- Wait for 15 seconds. The device will reboot automatically and restore to factory default setting.
NOTE: Factory Reset will be disabled if the "Lock keypad update" is set to "Yes".
Grandstream Networks, Inc.
if the MAC address
HT–286 User Manual
Firmware 1.1.0.31
is 000b8200e395, it should be encoded
Page 28 of 28
Last Updated: 1/2009
as