﻿Steps to perform MTE-LAT2, MTE-LAT6, MTE-LEU6 and MTE-L12G1 firmware upgrade:
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- Web into the MTE-xxx device and login
- Click on System Related -> System Tools -> Firmware Upgrade
- Click on Choose File button and select the firmware BIN file
- Click on the Upgrade button
 
- DO NOT INTERRUPT DURING THE FIRMWARE UPGRADE PROCESS.   IT WILL TAKE AT LEAST 5 MINUTES TO COMPLETE

 -   After firmware upgrade is successful, Web into the MTE-Lxx again and make sure it displays the correct firmware version number you just upgraded.
 -   Press and hold the reset button for minimum 15 seconds to reset the MTE-Lxx back to factory default settings in case there are any issues.

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February, 2022 (Version v2.10)
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Firmware file name, version and MD5 checksum: 
	MultiTech_MTE-Lxxx_v210.BIN (Version v2.10)
	MD5 checksum = eabcad17f2e3067a763413f7fa0dd213

- Fixed - IP passthrough mode when cellular IP address contain broadcast address
- Fixed - Integer overflow issue when setting large value for cellular Data usage monitor / Allowance

- Added - Web login UI warning message
- Added - set MTE-LAT6 LTE radio to data centric
- Added - use AT!RESET to reset CBRS radio for model MTE-L12G1 

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November, 2019 (Version v2.08)
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Firmware file name, version and MD5 checksum: 
	MultiTech_MTE-Lxxx_v208.BIN (Version v2.08)
	MD5 checksum = e542d4bc06b0bc70880e05db28fad98d

- Fixed - Web UI diagnostic page access without require login
- Fixed - SSH not allow access when Telnet access is disabled 

- Added - password must contain minimum 8 characters with minimum one upper case, one lower case and one numeric character
- Added - auto APN for canadian carriers 
- Added - new option to disable reset button so short hold and press will not factory default reset
- Added - new option to setup packet filter rules to control inbound / outbound traffics based on IP and port
- Added - support multiple AT commands in init string field.  each command seperated by ; character, i.e. AT+CSQ;AT+CGDCONT?;AT+CREG?
 
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July, 2019 (Version v2.07)
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Firmware file name, version and MD5 checksum: 
	MultiTech_MTE-Lxxx_v207.BIN (Version v2.07)
	MD5 checksum = 713975387713a1141b22113ba6b5b0fd

- Added - new mode for direct AT command access to Cellular Radio via raw TCP port
- Added - support new model MTE-L12G1 for CBRS private LTE network
- Added - improve displaying the proper network operator name in the cellular network status UI 

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March, 2019 (Version v2.06)
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Firmware file name, version and MD5 checksum: 
	MultiTech_MTE-Lxxx_v206.BIN (Version v2.06)
	MD5 checksum = 4cc9a888af3342cd93937fb52b0b7df3
	
v2.06
- Fixed - When performing cellular WAN DHCP IP renew, if new IP address same as previous do not perform any LAN reset to prevent packet lost.
- Fixed - in IP passthrough mode, prevent cellular link from disconnecting when time sync fail

- Added - in WAN internet setup, new UI options to allow extra AT commands to setup internal LTE radio before making connection

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December, 2018 (Version v2.05)
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Firmware file name, version and MD5 checksum: 
	MultiTech_MTE-Lxxx_v205.BIN (Version v2.05)
	MD5 checksum = debb02ef94164b915d21f8f34a8f0512

Fixed - NTP server time update issue
Fixed - DNS proxy issue in NAT mode
Fixed - modem resetting issue when using some particular AT&T broadband APN SIM
Fixed - report correct MTE LAN MAC address as device serial number to DeviceHQ.  
        previous registered device on deviceHQ will need to be removed.
Fixed - Memory read/write check to avoid corruption in bootloader

Added - support two new MTE-LAT6 and MTE-LEU6 models using new LTE CAT 4 radios
Added - user must change default password when login for the first time
Added - allow user to manually enter cellular static IP, netmask and default gateway
Added - Display cellular RSSI / RSCP / RSRP information in modem status detail UI

	
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October 16, 2017 (Version v2.04)
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Firmware file name, version and MD5 checksum: 
	MultiTech_MTE-LAT2_v204.BIN (Version v2.04)
	MD5 checksum = 2b6d12c01a7c667574972c10ae9ff6c4 
	
Fixed - minor UI fixes and cleanup
Fixed - using firebox browser

Added - DeviceHQ device managment (https://www.devicehq.com)
Added - show ICCID information in log file
Added - update default auto APN for AT&T and Tmobile
Added - enhance auto recover during SIM failure, module failure and cellular connection failure

 
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Jan 3, 2017 (Version v2.03)
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Firmware file name, version and MD5 checksum: 
	MultiTech_MTE-LAT2_v203.BIN (Version v2.03)
	MD5 checksum = 8be9b5d11b6784ffc94a964f48fc51b4

Fixed - incorrect time when default is “Central Time (U.S)”.
Fixed - in brdige mode, DHCP server stops assigning the IP address when cellular WAN is getting IP address ending with 0.
Fixed - 4G WAN lockup issue when 4G module power off and on.
Fixed - module time sync problem can cause cellular connection to stop working.
Fixed - it will auto reconnect cellular connection if it gets the 0.0.0.0 wrong ip address.
Fixed - cellular WAN keeps disconnecting and reconnecting when PC continuously sending data in NAT mode while cellular connection is obtaining IP address
Fixed – when LAN subnet change from default, LAN client is unable to ping out after cellular wan renew cellular IP address.
Fixed – DHCP server IP lease issue when in bridge mode and cellular link IP end with 0.
Fixed - DHCP server assign wrong DNS address when LAN IP change from default


Added - auto detect 4G radio and cellular connectivity lockup and automatically reboot in order to recover.
Added - cellular roaming configurable option in WAN setup UI, default is enabled.
Added - basic NAT, virtual server / port forwarding / DMZ and static routing. 
Added - auto reboot and auto recover when there are too many consecutive cellular connection failures.
        Failures consist of not able to obtain cellular IP address / internet connection / Network monitoring.
Added - add new APN profiles for USA and Canada.
Added - new SIM LED function:
		LED Flashing = System is doing power on initialization.  
		LED ON Solid = SIM card is detected and Ready.
		LED OFF = SIM card is not detected and perhaps not inserted properly.
Added - seperate "Firmware Upgrade" and "Configuration Restore" into two different UI options.  
		add "Configuration Restore" button in "Backup Configuration Setting".
Added - add more log to capture 4G Mobile WAN during connect and disconnect.
Added - improve firmware upgrade process in normal mode as well as recovery mode.
Added - when DHCP server configure with gateway 0.0.0.0, it will not pass out gateway IP address
Added - improve cellular connection time after initial power on.
Added - maintain log files history after auto reboot.
Added - improve speed during web UI access.

	