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SIP Phone

Download (USA)

If you need the old version firmware listed in this page,
please contact to Sales Company of your region.

Old version firmware for KX-TGP500B04/KX-TGP550T04

Model No. Firmware Size(KB) Date Version Remarks
KX-TGP500B04
KX-TGP550T04
    TGP5xx-USA-12.90_HW1.fw
3,635 Apr 14,2015 12.90
    TGP5xx-USA-12.84_HW1.fw
3,637 Sep 30, 2013 12.84
    TGP5xx-USA-12.81_HW1.fw
3,632 July 29, 2013 12.81
    TGP5xx-USA-12.73_HW1.fw
3,617 Dec 28, 2012 12.73
    TGP5xx-USA-12.58_HW1.fw
3,554 Jun 15, 2012 12.58
    TGP5xx-USA-12.53_HW1.fw
3,537 Apr 25, 2012 12.53
    TGP5xx-USA-12.35_HW1.fw
2,915 Jan 10, 2012 12.35
    TGP5xx-USA-12.17_HW1.fw
2,758 Jul 29, 2011 12.17
    TGP5xx-USA-12.12_HW1.fw
2,739 Apr 12, 2011 12.12

Note : Do not perform a firmware downgrade. If TGP500/550 will be downgraded ,it will not work.

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