Automatic Upgrades/Updates

Yealink devices enrolled via our Management & Provisioning Platform will be automatically upgraded to the latest firmware release that the bvoip team deems STABLE. Follow the guide Activating the MPP Integration to start enrolling devices.

If your devices were manually provisioned, you can instead follow How to Manually Update Firmware for Yealink Phones.

Firmware Upgrade Behavior

When a device requests the latest firmware, the system enforces a staged upgrade path to ensure stability and compatibility. Devices may go through up to four upgrade stages, depending on their starting version. Each stage is designed to prevent downgrades and ensure a smooth transition to the latest supported firmware.

T5x Series

• ≤ 86.0.17 ➡️ Served 96.86.0.18
• = 96.86.0.18 ➡️ Served 96.86.0.70
• 96.86.0.70 - 96.87.0.14 ➡️ Served 96.87.0.15
• ≥ 96.87.0.15 ➡️ Served Latest STABLE Release

T4x Series

• < 66.85.0.5 ➡️ Served 66.85.0.5
• 66.85.0.5 - 66.86.0.14 ➡️ Served 66.86.0.15
• 66.86.0.15 - 66.86.0.159 ➡️ Served 66.86.0.160
• ≥ 66.86.0.160 ➡️ Served Latest STABLE Release

STABLE vs. Manual Override

STABLE

When bvoip marks a firmware version as STABLE, it means:

• The version has passed internal QA and field validation.
• It is safe for general deployment across supported devices.
• The upgrade logic will automatically guide devices to this version unless overridden.

Manual Overrides

If a partner manually sets a firmware version in the Management & Provisioning Portal:

• That version takes precedence over the STABLE designation.
• The system will serve the manually specified version, even if it bypasses the staged upgrade path.
• This can lead to skipped stages or unsupported downgrades, which may introduce instability.