Cisco IP Phone 7945 Blank Screen

[Syed Mohammed]

Hi,

We have Cisco IP Phone 7945.  which is not registering in CME?

Phone Status: Speaker light ON, Blank Display and other button are not working.

Attached is the screenshot of phone.

Regards,

Syed

[Rajan]

Hi Syed,

Try factory resetting the phone using the below procedure but make sure that you have  a proper DHCP in the network before doing this.

https://www.youtube.com/watch?v=oVcWAmCKoCU

HTH

Rajan

[Syed Mohammed]

Thank you for your reply.

I did factory reset before.

But phone is showing upgrading on display every time.

Regards,

Syed

[Rajan]

Hi Syed,

Do you see any file names on phone display during upgrade. Also are you able to see the current firmware version on the phone ?

-- Rajan

[Syed Mohammed]

Thank you for your reply.

On phone display it is showing Upgrading only.

Attached is the phone screenshot.

Regards,

Syed

[Manish Gogna]

If you have tried the factory reset with the phone connected to a good known working port with dhcp enabled and access to tftp server and still facing this issue then the phone will most likely require a replacement.

Manish

[Syed Mohammed]

Thank you for your reply.

Okay.

Regards,

Syed