Telephone 7970

[rtdados]

I have made a factory reset to the phone but after that the phone doesn't start anymore. It stays on the boot process.

[eddieshanley]

we need to have more information. have u recently done a CCM upgrade?

[rtdados]

I have CM4.0 and i instal a the new service release on it. I have other 7970 phones working well.

[CCampbell_2]

I recently upgraded to 7.1 on a couple of 7970s and one came back the other did not. The difference is the working 7970 was connected to a 3550, the broken phone connected to a 4506. When I moved the broken phone to the 3550 it came up. It would appear there is a bug in the interaction of the 7970 and 4506 switches. This may be your problem.

[rtdados]

My phones are connected to a catalys 3750 switch.

[rtdados]

My phones are connected to a catalyst 3750 switch.

[rboyce]

There was a bug in certain 3550 and maybe 3750 (not sure) IOS versions which allowed the phones to broadcast to the data vlan for an IP. Do a show cdp neighbor entry * and see if the phone is getting an IP on the correct network.

[rtdados]

My phones are connected to a catalyst 3750 switch.

[gogasca]

If you happen to find a 7970 where the screen will not turn on after a reboot, and the line lights blink green in sequence with the Headset

button illuminated, then your CTL file system is corrupt. Here are the steps you need to take to format the flash, recover to the default

configuration and reload the default load:

1) Power off 7970

2) Power on 7970 (with a power-brick) while holding the # key

3) The lines lamp should blink amber in sequence, let go of the # key

4) Press 123456789*0#

5) The lamps should blink green in sequence

6) The phone will obtain IP information via DHCP

7) The TERM70.default load will be loaded on the phone

8) The phone should recover the configuration file from CallManager, if

not reset with **#** and your confriguration will be restored

If you do not have a power-brick connected, while doing the 'Factory Restore' then this process will fail because the 7970 cannot TFTP the

TERM70.default load from itself with inline power. If you have a console connected you will see:

CDP: power TLV's not detected - assume low power mode - pwr src = 1

Gonz-

[rustomhind]

Hi,

I actually tried something stupid. Maybe I did not realise it while i did it but later on knew that both phones are now useless. I tried factory resetting my 7970 phones without a power brick. Now i just have 2 phones which just wont boot up. I tried everything I found on teh internet. tired using uploading load files using cme4.3 and cucm 4.3. tried upgrading firmware with the latest firware but it is just stuck and after about 3 months i now feel that i've lost my phones for good. all that happens is the line buttons keep blinking and the headset button is green and the mute button is red. When i tried using call manager express, i used a debug on the router and i can see phone asking for an ip address and also for teh firmware and my tftp providing it. after all that is finished i see no outputs and the phone still wont start. the screen is blank and i cant see anything on it. tried teh factory reset and all other possible things but still stuck. COULD SOMEONE PLEEASE HELP ME OUT.!!!

[paolo bevilacqua]

Already replied in another thread, please do not post duplicates.