Yealink MP56 Recovery Guide

Recovery Mode on Yealink IP phones
1
Overview
This guide shows how to use recovery mode to get your phone ready when it fails to start up.
There are four recovery modes:
1. Using HTTP server
2. Using TFTP server (not applicable to CP960 IP phones)
3. Using USB flash drive (only applicable to MP54/MP56/MP58/VP59/SIP-T58A/T57W/T54W/
T53W/T53/T53C/T48U/T48S/T46U/T46S/T43U/T42U/T42S/T41S/CP920/CP960 IP phones)
4. Running backup system
Generally, when a Yealink IP phone is powered and connected to the network properly, it will start up
successfully and get ready for you to use. In case, the IP phone is accidentally powered off when
upgrading, the system data in the flash may be damaged and this makes the IP phone fail to start up.
Therefore, we strongly recommend that do not unplug or remove the power when the phone is
updating firmware or configurations.
Getting Started
Before using recovery mode to get the IP phone ready, the following steps are required:
1. Preparing the Firmware and other Resource Files
2. Configuring the HTTP Server, Configuring the TFTP Server or Connecting the USB Flash Drive to the
IP Phone
Preparing the Firmware and other Resource Files
For the firmware and other resource files, you can ask your Yealink reseller.
Different phone models require different resource files to be used for recovery mode. Some just need the
firmware, while others need extra files like “.bin” or “.rfs” in addition to the firmware.
The filename of the firmware used for recovery mode is strictly required. For example, to use recovery
mode on SIP-T46G IP phones, you must rename the firmware file as T46.rom.
For more details about the firmware name and required resource files, refer to the following table:
Phone Model
The Resource Files Required
Description
SIP-T19(P) E2
T19P_E2.rom, T19P_E2.bin, and T19P_E2.rfs
SIP-T21(P) E2
T21P_E2.rom, T21P_E2.bin, and T21P_E2.rfs
SIP-T23P/G
T2x.rom, T2X.bin, and T2X.rfs

Yealink MP56 Specifications

General

Device lock	Yes
Handset type	Wired handset
Product type	IP Phone
Product color	Gray
Compatible products	Microsoft Teams
Operating system version	9.0
Operating system installed	Android
Caller ID	-
Lines quantity	- lines
Phonebook capacity	- entries
Display diagonal	7 \
Touchscreen type	Capacitive
Display resolution	800 x 480 pixels
Number of simultaneous touchpoints	5
Graphical user interface (GUI) language	Multi
Voice codecs	AGC, AJB, CNG, PLC, VAD
Bluetooth version	4.2
Security algorithms	HTTPS, TLS
Networking standards	IEEE 802.1x, IEEE 802.3af
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	IPv4/IPv6, SNTP
RJ-9 ports quantity	2
USB 2.0 ports quantity	1
USB output current	0.5 A
AC adapter input voltage	100 - 240 V
AC adapter output current	2 A
AC adapter output voltage	5 V
Power consumption (typical)	4.5 W
Power consumption (Power over Ethernet (PoE))	6 W
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Master (outer) case width	523 mm
Master (outer) case height	293 mm
Master (outer) case length	247 mm
Master (outer) case weight	8000 g
Harmonized System (HS) code	85171800
Master (outer) case net weight	7300 g
Quantity per master (outer) case	5 pc(s)

Weight and Dimensions

Depth	168.7 mm
Width	250.4 mm
Height	174.4 mm
Package depth	238 mm
Package width	278 mm
Package height	103 mm