Factory reset a Yealink phone — even without the admin password (2026)
You picked up a used Yealink desk phone, or inherited one with an unknown admin password. Here's how to factory reset it three ways — from the keypad, from the web UI, and (the important one) with a hardware key-hold that doesn't need the admin password at all. Plus what changed about Yealink's default password: 'admin/admin' on older firmware, a unique per-device password on newer units.