Ryan is quite likely correct. What I have done in years past to tell if a phone is really unrecoverable or is instead just stuck in a post-factory-reset loop where it's looking for firmware is to packet capture the phone's port. I plug it into a switch and setup a port monitor/span to a machine running Wireshark. If the phone is asking for an IP address, or better yet has been given an IP address with a value for DHCP option 150, you may sometimes see what file(s) the phone is looking for and at what IP. If you have a phone in this state and obtain the file(s) the phone is looking for, you may find you are able to resurrect a phone that otherwise appears visually dead - even where the screen doesn't seem to come up. I have done this successfully several times over the years. But it does take some time (it may not be worth it to you versus just replacing a phone), and you may just find in the end the phone isn't even transmitting any packets and really is kaput.
On Mon, Feb 12, 2018 at 12:48 PM, Ryan Ratliff (rratliff) < rratl...@cisco.com> wrote: > For what it’s worth the symptom you describe matches the Field Notice that > was provided earlier. This means one of the memory modules has died and the > phone cannot be recovered (that I know of). > > -Ryan > > On Feb 12, 2018, at 12:44 PM, Terry Oakley <terry.oak...@rdc.ab.ca> wrote: > > Vinnie do you have the # button pressed before or after you plug in the > POE cable? You need to have the # button pressed before. > > Terry > > > *From:* cisco-voip [mailto:cisco-voip-boun...@puck.nether.net > <cisco-voip-boun...@puck.nether.net>] *On Behalf Of *Vinnie Dao > *Sent:* Monday, February 12, 2018 10:25 AM > *To:* 'Ryan Ratliff (rratliff)' <rratl...@cisco.com>; 'Anthony Holloway' < > avholloway+cisco-v...@gmail.com> > *Cc:* cisco-voip@puck.nether.net > *Subject:* Re: [cisco-voip] Cisco 7975 or 7965 stuck at speaker button > Red LED, sorry if this is a repost > > That was awesome guys, however, I tried many times what you said but the > phone can’t pass Green LED light on Speaker phone. > Here is what I have done, > Plug in POE cable to power up the phone, > Press # button, and get to the green light on speaker phone and stay > there like forever. I can’t even across that point and can’t even get to > the flashing line 1 to 8 of CP-7975 LED of the phone. > Any other suggestion before I give up on these? > > Thank you very much in advance to all. > > > *From:* cisco-voip [mailto:cisco-voip-boun...@puck.nether.net > <cisco-voip-boun...@puck.nether.net>] *On Behalf Of *Ryan Ratliff > (rratliff) > *Sent:* Monday, February 12, 2018 8:11 AM > *To:* Anthony Holloway > *Cc:* cisco-voip@puck.nether.net > *Subject:* Re: [cisco-voip] Cisco 7975 or 7965 stuck at speaker button > Red LED, sorry if this is a repost > > There are 3 I can find documented internally. > 1. Soft Reset (documented publicly) > 2. Hard Reset (see below) > 3. Hard Reset but keep network settings (Terry’s) > > The hard reset is: > 3491672850*# - the “nuke it from orbit” option which is a total format the > flash, hard reset but does not preserve the network. > > Prior to version 8.3.3 only the first 2 existed, but number 2 > unintentionally kept the network preferences, acting like number 3 does > today (see CSCsi60439). > > -Ryan > > On Feb 12, 2018, at 10:39 AM, Anthony Holloway < > avholloway+cisco-v...@gmail.com> wrote: > > *"The code for the network preservation hard reset is: *7412369#085"* > > And then there were three. > > Wes, Ryan, Brian, how many are there really? > > On Mon, Feb 12, 2018 at 9:31 AM Terry Oakley <terry.oak...@rdc.ab.ca> > wrote: > > I have used the below to reset 79xx series phones and load a new firmware > on them. Setup a laptop with a TFTP server on it and on most I have been > able to recover what looked like a bricked unit. > > Thanks > > Terry > > > *Terry Oakley* > Telecommunications Coordinator *| *Information Technology Services > *Red Deer College **|*100 College Blvd > <https://maps.google.com/?q=100%0D+College+Blvd&entry=gmail&source=g>. *|* > Box 5005 *| *Red Deer *|* Alberta *| *T4N 5H5 > work (403) 342-*3521 **| * FAX (403) 343-4034 <(403)%20343-4034> > > > > #Total Hard Reset > The code for the total hard reset is: 3491672850*# > A total hard reset formats /flash0 blowing away everything except CNU. > All settings and personalization of the phone is removed. > #Hard Reset with Network Setting Preservation > The code for the network preservation hard reset is: *7412369#085 > And it also does a complete format of /flash0 - yet it preserves the > network settings so that after the format, any static IP and other network > settings are preserved. The settings are stored in volatile RAM, so it is > important to not remove power to the phone during this process > #Prerequisites > There are a number of prerequsites that are necessary for a successful > factory reset. > 1. You must have a network environment in which DHCP is used to > provide the phone with an IP address and a TFTP server (i.e. DHCP option > 150). > 2. There must be an appropriate default load for your phone > model on that TFTP server: > o The default load name is: termxx.default.loads (where xx is > part of the model number, 41 for 7941, 62 for 7962, 70 for 7970, etc.) > o The version of the default load must be the same signing > type (dev or release) as the phone on which you wish to do a factory reset. > o This file (termxx.default.loads) is packaged with every > phoneload that is installed on the callmanager, but since the name is not > unique per phoneload version, the copy of termxx.default.loads is always > the one from the most recent load that was installed on the callmanager. It > may not be the type (dev or release) that you want. > > > *From:* cisco-voip [mailto:cisco-voip-boun...@puck.nether.net] *On Behalf > Of *Vinnie Dao > *Sent:* Sunday, February 11, 2018 11:07 AM > *To:* 'Anthony Holloway' <avholloway+cisco-v...@gmail.com> > > *Cc:* cisco-voip@puck.nether.net > *Subject:* Re: [cisco-voip] Cisco 7975 or 7965 stuck at speaker button > Red LED, sorry if this is a repost > > HI Anthony, > Appreciated your reply, > The link you sent requires login, > > I am not sure what version on them, since they are stand by units for a > while, from the last time they were working at one point. I tried to > reset, 1234567890*# but still the same issue. > > *From:* Anthony Holloway [mailto:avholloway+cisco-v...@gmail.com > <avholloway+cisco-v...@gmail.com>] > *Sent:* Sunday, February 11, 2018 9:53 AM > *To:* Vinnie Dao > *Cc:* cisco-voip@puck.nether.net > *Subject:* Re: [cisco-voip] Cisco 7975 or 7965 stuck at speaker button > Red LED, sorry if this is a repost > > Did you already look through the bug search tool? > > https://bst.cloudapps.cisco.com/bugsearch/search?kw=stuck% > 20boot&pf=prdNm&pfVal=269065653&sb=anfr > > What version of firmware is it, and what can you do to clear the problem? > I.e., Power cycle the phone? > > On Sun, Feb 11, 2018 at 11:49 AM Vinnie Dao <vin...@tdnetwork.com> wrote: > > Greeting to all, > > Lately, I have some CP-7965 and CP-7975 stuck at speaker button during > boot up as red LED and stay there for long time. Has anyone got this issue > and know how to fix it? > > Please advise where to go from here to resolve this issue, and thank you > very much for your time. > > _______________________________________________ > cisco-voip mailing list > cisco-voip@puck.nether.net > https://puck.nether.net/mailman/listinfo/cisco-voip > > _______________________________________________ > cisco-voip mailing list > cisco-voip@puck.nether.net > https://puck.nether.net/mailman/listinfo/cisco-voip > > > _______________________________________________ > cisco-voip mailing list > cisco-voip@puck.nether.net > https://puck.nether.net/mailman/listinfo/cisco-voip > >
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