I had a tech try to flash this phone to SIP 8.11 from SCCP and they must have done something wrong, because the phone goes from configuring VLAN to TFTP error (0A in little letters next to it) and hangs. The tech said they did a restore default settings with wipe network info prior to it being in this state. Is there a relatively easy way to unbrick it to where the firmware could be reflashed? The phone does not allow any interaction with the menus. This may need to be treated as a failed firmware upgrade. Solutions and suggestions would be greatly appreciated.
The customer is using an Allworx 10x system. CM is not in use at this site. Are there any other alternatives for recovery? I tried initiating a factory reset via the handset, but I get the loader screen, configuring VLAN, configuring IP, no load specified, and then the hang on TFTP error.
Get PC and phone on an isolated network with tfptd32.exe, enable dhcp and tftp, add option 150 in the dhcp panel with PC's address. Depending by the tftpd32 version, you may need to enter this as "a x.x.x.x".
Do the factory reset sequence, phone will load the files.
When you use a router/CME all this is automatic, you never have to do manual recovery - I'm not trying to sell you anything, I just observe people struggling with third party solutions all the time.
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The short answer is that you don't.... That isn't entirely true while at
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Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...