Purpose: This guide lists Yealink desk phones supported by Crexendo and the minimum firmware each model must be running.
Important: Devices should be on the listed version or newer unless directed otherwise by Crexendo Support.
Overview
- Supported scope: Yealink desk phones (models listed below)
- Minimum firmware: The lowest supported firmware per device model
- Best practice: Keep firmware current to improve stability, security, and provisioning compatibility
Supported Devices & Minimum Firmware
Before you update: If your phone is managed/provisioned by Crexendo, avoid manual firmware changes unless instructed. Manual updates can cause provisioning or feature issues if the incorrect firmware branch is used.
Tip: Use your browser’s Ctrl + F / Cmd + F to quickly find your model (example: “T46U”).
| Device Type | Minimum Firmware Version |
|---|---|
| Yealink T21P E2 | 52.84.0.125 |
| Yealink T22P | 7.70.1.20 |
| Yealink T23G | 44.84.0.140 |
| Yealink T26P | 6.60.200.240 |
| Yealink T28P | 2.60.200.242 |
| Yealink T29G | 46.83.0.120 |
| Yealink T31G | 124.86.0.40 |
| Yealink T32G | 32.70.0.168 |
| Yealink T33G | 124.86.0.40 |
| Yealink T38G | 38.70.0.185 |
| Yealink T40G | 76.84.0.125 |
| Yealink T41P | 36.83.0.120 |
| Yealink T41S | 66.86.0.160 |
| Yealink T42G | 29.83.0.120 |
| Yealink T42S | 66.86.0.160 |
| Yealink T42U | 108.86.0.70 |
| Yealink T43U | 108.86.0.70 |
| Yealink T46G | 28.83.0.120 |
| Yealink T46S | 66.86.0.160 |
| Yealink T46U | 108.86.0.70 |
| Yealink T48G | 35.83.0.120 |
| Yealink T48S | 66.86.0.160 |
| Yealink T48U | 108.86.0.70 |
| Yealink T52S | 70.84.0.70 |
| Yealink T53W | 96.86.0.70 |
| Yealink T54S | 70.84.0.70 |
| Yealink T54W | 96.86.0.70 |
| Yealink T56A | 58.83.0.15 |
| Yealink T57W | 96.86.0.70 |
| Yealink T58W / Pro / Camera | 150.86.0.50 |
| Yealink VP59 | 91.86.0.20 |
How to Check Your Phone’s Firmware
- On the Yealink phone, press OK (or go to Menu).
- Navigate to Status (wording may vary by model).
- Locate Firmware Version and compare it to the table above.
Pass criteria: If your phone’s firmware is equal to or higher than the minimum listed for your model, you meet the requirement.
Troubleshooting
My firmware is lower than the minimum
- If your device is provisioned by Crexendo, do not manually flash firmware unless instructed.
- Contact support and provide:
- Phone model (example: T46U)
- Current firmware version
- MAC address (if available)
My model is not listed
- The device may be unsupported or not approved for this environment.
- Contact Crexendo Support with the exact model number and current firmware version.
The phone won’t provision or behaves oddly after an update
- Power cycle the phone (unplug/replug).
- Confirm the device is running a supported firmware line for your model.
- Contact Crexendo Support for verification and next steps.
FAQ
Do I need the exact firmware listed?
No. The listed version is the minimum. Newer versions are typically acceptable unless Crexendo advises otherwise.
Why does firmware matter?
Firmware impacts security, stability, feature support, and provisioning compatibility.
If you need additional assistance, please contact Crexendo Support at 855-211-2255 or email us at support@crexendo.com — our team is happy to help!