Cisco 7942 does not boot - only speaker LED is on

[mischm]

Hi,

I have a Cisco 7942 phone which is not booting.

After connecting the PoE network cable to the phone these buttons are on

- mailbox (at the handset), both line buttons, headset, mute, speaker

Then all these buttons goes off and only the speaker LED is on and in the display nothing is displayed.

I already tried to make a factory reset which is not working.

What can I do to make this Cisco 7942 working again?

BR

Michael

[mischm]

Hi Rudolf,

so you also don`t have any solution for this problem correct?

Or did you get any other suggestions from your frient working at Cisco?

BR

Michael

[rkwong]

Hello Michael,

My friend also suggest me to perform RMA with Cisco because he has same exprience before with 20+ new phone in problem. But in my case, because my phones were expired maintenance, I've no way to apply RMA.

BTW, I'm going to build up a CME for try another call manager for last chance. Will update you the result here and see if I'm luck.

Best regards,

Rudolf

[hnguyen02]

how to bypass speaker light.

1. Press the # key and plug the phone back in.
2. When you see the MUTE light turn on (RED) and soon Speaker turn on (GREEN) then you need Tap on Speaker light 3 times or more until you see the top lights Start flashing and key in the sequence 123456789*0# to reset the phone.

Hai Nguyen

[cflax]

Worked for me!

[jcher74]

Had the same issue and just found this Field Notice:

http://www.cisco.com/c/en/us/support/docs/field-notices/637/fn63772.html