If any issues occur during the update, please contact Zyxel Support: Tel. +358 9 4780 8411 1 / 4
www.zyxel.fi
Update instructions for Zyxel P-660HN-T1A v2 modem (for Sonera subscribers)
This update fixes a vulnerability found in TR-064/TR-069 remote management protocols,
which is a potential security risk and might cause the internet connection to become
slow. During this update procedure, any user made changes to the settings will be
removed. This, for example, includes the wireless network name (SSID) and the wireless
password. This update and these instructions are only for devices used under Sonera
subscriptions.
Note: The pictures in these instructions might differ from your device.
Update procedure:
1. Connect a PC to the modem either wirelessly or by using an Ethernet cable.
2. Download the update to the PC from the following link:
http://support.zyxel.fi/P-660HN-T1Av2/200AAFW4D0.bin
(Alternative link: goo.gl/pDScmC)
The download location/folder does not matter.
3. Unplug the telephone cable (RJ-11) from the modem (DSL-port)
4. Turn off the modem by pressing the on/off button. Wait for 5 seconds and turn the
power back on by pressing the on/off button again. Wait for the modem to start.
If any issues occur during the update, please contact Zyxel Support: Tel. +358 9 4780 8411 2 / 4
www.zyxel.fi
5. Reset the modem back to factory default settings by pressing the reset-button on
the back panel of the device. The button is in a small hole, you will need a small
sharp object to press it, for example a paperclip or a toothpick.
Press the reset button until the lights on the front panel flash together briefly. This
will take about 10 seconds. Release the button and wait for the modem to start.
Note: If you had previously changed the wireless network name and/or
password, they will be set back to default settings at this point. This might break
the PCs connection to the modem. Reconnect the PC to the modem either by
using an Ethernet cable, or by joining the default wireless network in the modem.
The default wireless network name (SSID) and the password (Wi-Fi key) are written
on the bottom of the device.
6. When the modem has restarted, open a web browser (e.g. Internet Explorer,
Chrome or Firefox) and go to address 192.168.1.1
7. Login to the management interface with the following credentials:
Username: admin
Password: 1234
Click Login
If any issues occur during the update, please contact Zyxel Support: Tel. +358 9 4780 8411 3 / 4
www.zyxel.fi
8. The next window will ask you to change the password. Change the password by
typing and confirming it to the fields shown and click Apply.
Note: This will only change the device management password, not the WLAN
password.
9. When the device management opens, go to Maintenance > Firmware Upgrade.
10. Click on Choose File (or Browse…, depending on the browser)
Find the update file (.bin-extension) you downloaded in step 2, select it and click
Open.
If any issues occur during the update, please contact Zyxel Support: Tel. +358 9 4780 8411 4 / 4
www.zyxel.fi
11. When the update file has been chosen, click the Upload button
12. The modem will now update itself and restart automatically.
13. When the modem has restarted, reconnect the telephone cable (RJ-11) to the
modems DSL-port.
14. Wait for a couple of minutes.
a. If the internet light stays red, reset the device back to factory default
settings as shown in step 5. Wait a couple of minutes again and the light
should turn green.
b. If the internet light is green, the update is complete and the device is ready
for use.
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