With the new series of ThinkPads IBM introduced the Active Protection System (APS) in 2003. The APS is a protection system for the ThinkPad’s internal harddrive. A sensor inside the ThinkPad recognizes when the notebook is accelerated. A software applet then is triggered to park the harddisk. This way the risk of data loss in case of when the notebook is dropped is significantly reduced since the read/write head of the harddrive is parked and hence can’t crash onto the platter when the notebook drops onto the floor.
The hardware sensor is capable of not only recognizing acceleration of the notebook, but also (to a certain degree) of its whole orientation in space, relative to gravity’s axis. Furthermore, having the actual control put into software, its functionality is extendable and it gives chance to implement features like the “ignore minor shocks” feature which is present in the Windows based control applet. (This feature prevents the harddrive from parking in case of minor regular shocks such as occur when in a train or car.)
I’ve created a public Google Drive folder for the Lenovo S205 Drivers. The main advantage is that now you will be able download all the drivers as a single .zip archive. Also, the download speed should be better than the official Lenovo site’s.
I can’t garantee that I’ll update the drivers as soon as they are released (I don’t have enough time and bandwith) but I’d be glad to give edit rights to anyone willing to contribute to this project.
Attention: this tip is only for devices with a Ralink RT3090 WiFi adapter. If you are unsure whether you have a Ralink card, you can check it via Lenovo’s Product Configuration. If it doesn’t show a ‘Cbt RT3090 MOW M PCIE NB HMC WLAN’ entry, then this tutorial is not for you. UPDATE: you can use this small piece of software (modified from Lenovo installer) instead 🙂
The obvious way of installing the WiFi driver would be getting it from the official Lenovo support, but since it isn’t available there (WTF Lenovo?), the only place you can download it from is themanufacturer’s support page. If the provided link wouldn’t work navigate to Ralinktech.com > Support > Windows and look for RT309x. The latest version is 188.8.131.52 (04/12/2012).
Make sure that you tick the ‘install driver only’ option when you run the setup file.
Go to Device Manager >Network adapters and double click Ralink RT3090 802.11n WiFi Adapter. Switch to the Advanced tab and select ‘Continuously Aware Mode (CAM)‘ as Power Save mode. Go to the Energy management tab and untick ‘Allow computer to turn off this device to save energy’.
Save the settings and restart your computer. These options will ensure the maximum performance and connectivity for your Ralink wireless card.