X121e - How to enable WWAN/Bluetooth on Linux?

Question

Hello everyone,
does anyone know what the Lenovo Hotkey tool on Windows is doing technically behind the scenes to enable Bluetooth and the WWAN card?
Does it connect on serial COM4 to the WWAN card and enter some AT commands to enable it? I hope it is not some kind of secret sauce and Lenovo can share with us the details.
This notebook has no hardware switches to enable those devices, which means it has to be done somehow in software.
Unfortunately I want to run only Ubuntu Linux on this nice device. When I activate BT and WWAN on Windows 7, they stay enabled for 1 reboot on Ubuntu. After a second reboot, they are disabled and cannot be enabled via software on Linux. I have to boot Windows and launch the Hotkeys utility again.
After all what I have been through with this notebook regarding the wireless lan card [1], it would be nice to finally enjoy just working with it ;-)
ThinkPad x121e (3045)
Intel I3
BIOS Version 1.15
Ericsson F5521gw WWAN
I'm grateful for any hints.
Best regards,
Jochen
1) Broadcom BCM43224 - unstable latency: sudo iwconfig eth1 power off / http://ubuntuforums.org/showthread.php?t=1608989
Solved!
Go to Solution.

Answer 1

Hi,
Please refer the below details
Lenovo Hotkey tool on Windows -------- Technical information
The command line control for Wireless switching hot key (Fn+F5) feature. It is available to control the wireless radio using the following command;     C:\Program Files\Lenovo\HOTKEY\TpFnF5.exe [PARAMETER]
The following parameters are defined;
/WLON, /WLOFF Turn on/off internal 802.11.
/BTON, /BTOFF Turn on/off internal bluetooth.
/WANON, /WANOFF Turn on/off internal WAN.
/UWBON, /UWBOFF Turn on/off internal UWB.
/ALLON, /ALLOFF Turn on/off any radio at once.
Turning on the WWAN card :
Turning the card onFirst, check whenever the SIM is protected by PIN by sendin g
AT+CPIN?
to /dev/ttyACM1. You can do it with any terminal terminal program like cu or minicom. If the answer is
+CPIN: READY
then the SIM is unlocked. If the answer is
+CPIN: SIM PIN
you need first to unlock it by sending
AT+CPIN="YOUR-PIN"
to /dev/ttyACM1. Now the card can be turned on by sending
AT+CFUN=1
to /dev/ttyACM1. The answer should be
+PACSP0
Don't try to do anything until you see it. To force GSM-only connection, send
AT+CFUN=5
to /dev/ttyACM1. To force WCDMA-only connection, send
AT+CFUN=6
to /dev/ttyACM1.
Turning the card onFirst, check whenever the SIM is protected by PIN by sending
AT+CPIN?
to /dev/ttyACM1. You can do it with any terminal terminal program like cu or minicom. If the answer is
+CPIN: READY
then the SIM is unlocked. If the answer is
+CPIN: SIM PIN
you need first to unlock it by sending
AT+CPIN="YOUR-PIN"
to /dev/ttyACM1. Now the card can be turned on by sending
AT+CFUN=1
to /dev/ttyACM1. The answer should be
+PACSP0
Don't try to do anything until you see it. To force GSM-only connection, send
AT+CFUN=5
to /dev/ttyACM1. To force WCDMA-only connection, send
AT+CFUN=6
to /dev/ttyACM1.
Turning on the Bluetooth :
One can enable Bluetooth by pressing FnF5.
If this doesn't work, you can load the thinkpad-acpi kernel module and run the following command with root privileges:
# echo "enable" > /proc/acpi/ibm/bluetooth
When Bluetooth is enabled, the Bluetooth-logo LED will light up
Toggling the Bluetooth device on/off is very easy on Lenovo Thinkpads
 The following commands active and deactivate bluetooth.
$echo "enable" > /proc/acpi/ibm/bluetooth
$echo "disable" > /proc/acpi/ibm/bluetooth
This works for both Fedora and Ubuntu.
I hope this helps
Best Regards
Rakesh