Yealink MP54 Recovery Guide

Recovery Mode on Yealink IP phones
17
For CP960 IP Phones
This section is only applicable to CP960 IP phones.
Procedures:
1. Reconnect the PoE adapter.
2. Long tap the Home touch key when the touch screen prompts “Initializing…” to trigger the recovery
mode.
The IP phone will read and upgrade the firmware from the USB flash drive, and the touch screen
prompts “Firmware Updating”.
When upgrading successfully, the touch screen prompts “Initializing”.
3. If the IP phone fails to upgrade, the LCD screen will indicate the failure. You need to check and make
sure:
 The file system of the USB flash drive should be FAT32.
 The USB flash drive has been successfully connected to the IP phone.
 The resource files are correctly renamed and placed on the USB flash drive.
 Repeat the recovery mode procedures to try again.
The LCD screen prompts “Update failed (-1)” when failing to upgrade:
4. Tap Settings->General to verify the current firmware version after upgrading successfully.
…. Update failed (-1) ….

Yealink MP54 Specifications

General

Operating System	Android 9.0
Headset Port	RJ9
Display	4-inch capacitive touch screen
Audio Features	HD Voice, Acoustic Shield, Noise Proof Technology
Connectivity	Dual Gigabit Ethernet ports
PoE Support	Yes (IEEE 802.3af Class 3)
Bluetooth	Yes, Bluetooth 4.2
USB Port	Yes (1x USB 2.0)
Power Supply	PoE or External AC adapter (optional)
Audio Codecs	G.722, G.711
Microsoft Teams	Native Microsoft Teams application
Lines	1
Supported Protocols	SIP
Wi-Fi	Yes, Dual-band Wi-Fi (802.11a/b/g/n/ac)