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Date: Wed, 03 Dec 2014 15:29:22 -0600 From: Dan Williams <dcbw@...hat.com> To: Richard Yao <ryao@...too.org> Cc: netdev@...r.kernel.org Subject: Re: How do I update Ericsson F5521gw firmware from Linux? / Ericsson F5521gw Random Disconnect Issue On Wed, 2014-12-03 at 10:58 +0000, Richard Yao wrote: > I purchased an Ericsson F5521gw (Lenovo part 60Y3279) so that my Lenovo T520 > could connect to China Unicom for internet access during a stay in China. > Unfortunately, it tends to fail every 4 to 8 hours with the following printed > to the system log: Probably a better discussion for the ModemManager list (since that's what you're using) but here goes... As far as I know, there is no way to do this from Linux unless you install Windows into a VM and use USB passthrough to allow the VM direct access to the Ericsson device's USB interfaces. I'm not sure what version of NetworkManager you're running, but NM 0.9.10+ have WWAN autoconnect support which will reconnect periodically on failure. That coupled with setting your openvpn VPN connection as a "secondary connection" to the WWAN should ensure that the VPN is always up when the WWAN is up. That would be a good workaround if you cannot find a way to update the firmware. nmcli con mod "China Unicom" connection.autoconnect yes nmcli con <find your VPN connection's name or UUID> nmcli con mod "China Unicom" +connection.secondaries <VPN name or UUID> (this does require that your VPN passwords be stored in /etc/NetworkManager/system-connections/, but rest assured they are only accessible by root) Dan > Dec 3 04:28:27 t520 kernel: [85827.909187] cdc_ncm 2-1.4:1.6 wwan0: network connection: disconnected > Dec 3 04:28:27 t520 NetworkManager[4134]: <info> (ttyACM1): modem state changed, 'connected' --> 'registered' (reason: user-requested) > Dec 3 04:28:27 t520 NetworkManager[4134]: <info> (ttyACM1): device state change: activated -> failed (reason 'modem-no-carrier') [100 120 25] > Dec 3 04:28:27 t520 NetworkManager[4134]: <info> NetworkManager state is now CONNECTED_LOCAL > Dec 3 04:28:27 t520 NetworkManager[4134]: <info> NetworkManager state is now CONNECTED_GLOBAL > Dec 3 04:28:27 t520 NetworkManager[4134]: <info> Policy set 'tun0' (tun0) as default for IPv4 routing and DNS. > Dec 3 04:28:27 t520 dbus[3912]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper) > Dec 3 04:28:27 t520 nm-openvpn[4200]: MANAGEMENT: Client disconnected > Dec 3 04:28:27 t520 nm-openvpn[4200]: SIGTERM received, sending exit notification to peer > Dec 3 04:28:27 t520 NetworkManager[4134]: <info> (tun0): link disconnected (deferring action for 4 seconds) > Dec 3 04:28:27 t520 NetworkManager[4134]: <error> [1417598907.695056] [platform/nm-linux-platform.c:1714] add_object(): Netlink error adding 0.0.0.0/0 via 10.8.0.5 dev tun0 metric 1024 mss 0 src user: Unspecific failure > Dec 3 04:28:27 t520 NetworkManager[4134]: <error> [1417598907.695124] [platform/nm-linux-platform.c:1714] add_object(): Netlink error adding 10.8.0.5/32 via 0.0.0.0 dev tun0 metric 1024 mss 0 src user: Unspecific failure > Dec 3 04:28:27 t520 NetworkManager[4134]: <error> [1417598907.695165] [platform/nm-linux-platform.c:1714] add_object(): Netlink error adding 0.0.0.0/0 via 10.8.0.5 dev tun0 metric 1024 mss 0 src user: Unspecific failure > tail: /var/log/messages: file truncated > Dec 3 04:28:27 t520 NetworkManager[4134]: <error> [1417598907.695165] [platform/nm-linux-platform.c:1714] add_object(): Netlink error adding 0.0.0.0/0 via 10.8.0.5 dev tun0 metric 1024 mss 0 src user: Unspecific failure > Dec 3 04:28:27 t520 NetworkManager[4134]: <error> [1417598907.695187] [nm-policy.c:693] update_ip4_routing(): Failed to set default route. > Dec 3 04:28:27 t520 NetworkManager[4134]: <warn> Activation (ttyACM1) failed for connection 'China Unicom' > Dec 3 04:28:27 t520 NetworkManager[4134]: <info> (ttyACM1): device state change: failed -> disconnected (reason 'none') [120 30 0] > Dec 3 04:28:27 t520 NetworkManager[4134]: <info> (ttyACM1): deactivating device (reason 'none') [0] > Dec 3 04:28:27 t520 dbus[3912]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher' > Dec 3 04:28:27 t520 nm-dispatcher: Dispatching action 'vpn-down' for tun0 > Dec 3 04:28:27 t520 nm-dispatcher: Dispatching action 'down' for wwan0 > > Here is the modem's description of itself: > > mmcli -m 0 --command='AT*EEVINFO=99' > response: '*EEVINFO: > Model.................... F5521gw > IMEI Data................ <REDACTED> > SVN...................... 05 > Serial Number............ <REDACTED> > Product Number........... KRD 131 18/221 > Revision................. R1C > FW Product............... CXP 901 7640/1 > FW Version............... R2A07 > FW Build Date/Time....... 2010-12-03/12:17 > Cust. Product............ CXC 173 0424/22 > Cust. Version............ R1B02 > Customization Descr...... Lenovo > Format................... 1 > Base Product Number...... 1/KRD 131 18/1 > Base Product Revision.... R1N > SIMLock Deployment....... 0.0 > SIMLock Description...... Unlocked > SIMLock Product.......... CXC 173 0839/01 > SIMLock Revision......... R1F > Model Description........ F5521gw Mobile Broadband Module > Vendor Name.............. Lenovo > Config. Set Product...... CXP 901 7629/1 > Config. Set Revision..... R3A02 > Network Customization.... Default;46001 > Customization State...... 0 > Configuration Product.... CXP 901 7640/1 > Configuration Revision... R2A07 > Protocol FW Product...... CXC 173 0063/1 > Protocol FW Version...... R2A07 > Application FW Product... CXC 173 0064/1 > Application FW Version... R2A07 > Network List Product..... CXC 173 1116/1 > Network List Revision.... R1A > Individualization........ 189.191 > Domain................... 3.3 > Upgrade State............ 1 > Volume info.............. 66 MB total / 43.9% free' > > Posts on the Lenovo forums suggest that this can be resolved by updating the > firmware: > > http://forums.lenovo.com/t5/X-Series-Tablet-ThinkPad-Laptops/Ericsson-F5521gw-WWAN-disconnects-intermittently-and-cannot/td-p/565597 > > Unfortunately, the official firmware updater only runs on Windows and I am > unable to find a way to update the firmware from Linux. I also cannot find any > hardware documentation. Does anyone have any suggestions? > -- > To unsubscribe from this list: send the line "unsubscribe netdev" in > the body of a message to majordomo@...r.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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