Grandstream HandyTone-502 unlock

Grandstream HandyTone-502 unlock

DISCONNECT FROM THE INTERNET

Try this password 1st for locked Comwave VOIP box...
14ackhvy
then try factory reset if this does not work.

DISCONNECT FROM THE INTERNET

Follow these steps carefully...


1. Find the MAC address of the device. It is a 12 digits HEX number located on the bottom
of the unit.
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, if the MAC address is 000b8200e395, it should be encoded as
“0002228200333395”.
3. To perform factory reset:
- Pick up the headset and dial “***” 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.

At this point your new password will be "admin"

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