ZyXEL P660RT2 EE firmware versions

ZyXEL P660RT2 EE is an old ADSL[2+] router that has been quite common in post-USSR/CIS countries.

Known FW versions

Version	Archive URL	Info URL
3.40(AXN.0)D0	http://download.from.zyxel.ru/download/525e69ec-341d-46be-b594-484ec4378dbb/340AXN0D0.zip	http://download.from.zyxel.ru/download/525e69ec-341d-46be-b594-484ec4378dbb/file_id.diz
3.40(AXN.1)D0	http://download.from.zyxel.ru/download/2d13f8d6-241e-4cf9-b7f9-6a9974836d0a/340AXN1D0.zip	http://download.from.zyxel.ru/download/2d13f8d6-241e-4cf9-b7f9-6a9974836d0a/file_id.diz
3.40(AXN.2)D0	http://download.from.zyxel.ru/download/0c061795-afb5-4859-bade-80ccfbfef831/340AXN2D0.zip	http://download.from.zyxel.ru/download/0c061795-afb5-4859-bade-80ccfbfef831/file_id.diz
3.40(AXN.3)D0	http://download.from.zyxel.ru/download/a17310da-b9c7-402f-ab46-64a43ba09fc6/340AXN3D0.zip	http://download.from.zyxel.ru/download/a17310da-b9c7-402f-ab46-64a43ba09fc6/file_id.diz
3.40(AXN.3)D0_20100617	http://download.from.zyxel.ru/download/8b436301-004a-42c0-b698-563080eab1e2/340AXN3D0_20100617.zip	http://download.from.zyxel.ru/download/8b436301-004a-42c0-b698-563080eab1e2/file_id.diz

Notes:

1. the latest firmware version is 3.40(AXN.3)D0_20100617;
2. file_id.diz files contain the SHA256 hashes of the ZIP archives (and also some old and new download URLs);
3. usually, it's recommended to reset the router configuration after the firmware upgrade (you can find the "RESET" button hole at the back of the router).

Reference:

• download.from.zyxel.ru (CAUTION: heavy web page: > 2 MiB).