It looks like it is SIP FW. This is from the Admin guide:
Note: For Web Recovery Mode on 6970 IP Phone:
1. Tap Settings > Advanced > Reset and choose Factory Default.
2. Open Recovery mode by pressing Directory and End button during reboot.
I hope this helps.
Hi, thanks for your suggestion. I didn't came by this section in the documents I found, and it would have been very helpful.... If Mitel made it work.
I tried maintining those buttons pressed and then pluggin in the phone, but it just boots normally. I thought it was my particular unit, but I also tried on another 6970 that is "known working" and which is for sure on the latest SIP firmware, but it didn't work either on this one.
I went all in and even made a script designed to disable the POE on my switch, and then enable it again in a loop, hoping to trigger the "Web Recovery after 10 unsuccessful reboots" thing. I tried it on a 6867i, the phone did, in fact, get into recovery mode after 10 reboots. But this one doesn't. I'm guessing the crazy guy who configured it even disabled this fallback feature... Seems a bit crazy to me but I guess people do indeed do this.
I'm starting to get worried for this one, I also tried to open the phone to maybe find the eeprom and flash it with my good 6970, but I'm not an electronics expert... I discovered somewhere on the main board is written "Jumper Operation : pins 2 and 3 short = FLASH (DEFAULT). So I also tried to jump those pins, but even that didn't work. I guess they really went out of their way to make it complicated.