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== Nanostation M5 ==
 
=== Firmware check failure ===
If you attempt to flash the extender and receive a 'Firmware check failed' error, then you have a version of the NSM5 that is protected from being flashed via the TFTP method. You will need to obtain a serial to USB interface (USB to UART TTL Module Serial Converter, 5 pin) and use it to flash the firmware.
Sending openwrt-ar71xx-generic-ubnt-nano-m-squashfs-factory.bin to 192.168.1.20 using tftp put
[Error: (Server) Firmware check failed]
 
==== TFTP Serial Output ====
 
When booting with the reset button held down on a Ubiquity NSM5, the following output is displayed.
 
U-Boot 1.1.4-s958 (Jun 10 2015 - 10:56:20)
DRAM: 64 MB
Flash: 8 MB (0xc2, 0x20, 0x17)
Net: AR8236
eth0, eth1
Board: Ubiquiti Networks AR9342 board (e855-22585.1122.0030)
Radio: 0777:e855
Reset: Normal
Hit any key to stop autoboot: 0
Setting default IP 192.168.1.20
Starting TFTP server...
Using eth0 (192.168.1.20), address: 0x81000000
Will reset device configuration (Reset button active after 10 seconds).
Erasing sector 123..126
First 0x7b last 0x7e sector size 0x10000
.... done
Waiting for connection: \
Receiving file from 192.168.1.10:49763
Received 4325788 bytes
Firmware check failed! (1)
=== USB to Serial Connection ===
128

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