TP-Link M7450 How To Upgrade

How to upgrade TP-Link MiFi product?
Notice:
1. Before upgrading:
 Please verify the hardware version of your device for the firmware version.
Wrong firmware upgrading may damage your device and void the warranty.
How to check over the hardware version of a TP-Link device?
 It’s recommended that users stop all Internet Applications on the computer.
 Please unzip the firmware file you have downloaded, and use the sub-zipped file
named as XXXX_user.zip to upgrade.
 Please make sure the device is fully charged.
2. During upgrading:
 DO NOT upgrade the firmware through wireless connection unless there is no
LAN/Ethernet port on your TP-Link device.
 DO NOT turn off the device during upgrade process.

TP-Link M7450 Specifications

General

Device type	Cellular wireless network equipment
Certification	CE, RoHS
Product color	Black, Grey
Card reader integrated	Yes
Compatible memory cards	SD
Data network	EDGE, GPRS, GSM, HSPA, LTE, UMTS
GSM bands supported	850, 900, 1800, 1900 MHz
UMTS bands supported	900, 2100 MHz
Number of simultaneous SIM cards	1
Battery capacity	3000 mAh
Power source type	Battery
Wi-Fi standards	802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
WLAN data transfer rates supported	300 Mbit/s
Display diagonal	1.44 \
Operating frequency	2400 & 5000 MHz
Storage temperature (T-T)	-20 - 60 °C
Operating temperature (T-T)	0 - 35 °C
Storage relative humidity (H-H)	5 - 90 %
Operating relative humidity (H-H)	10 - 90 %
Security algorithms	WPA-PSK, WPA2-PSK
Antenna type	Internal
Maximum memory card size	32 GB
4G standard	LTE-TDD & LTE-FDD
2G standards	EDGE, GPRS
3G standards	DC-HSDPA, HSPA, HSPA+, UMTS
4G bands supported	800, 900, 1800, 2100, 2600 MHz
Display type	TFT
Market positioning	Portable
Windows operating systems supported	Windows 10, Windows 7, Windows 8, Windows 8.1, Windows Vista, Windows XP
Ethernet LAN	No
Package depth	101 mm
Package width	149 mm
Package height	60 mm
Package weight	250 g
Cables included	Micro-USB
Harmonized System (HS) code	85176990

Weight and Dimensions

Depth	66.5 mm
Width	112.5 mm
Height	16 mm