Unfortunately my X200s did not had any WWAN card so I had connection problem if there wasn't any wifi network.
Also my X200s wasn't WWAN ready so it didn't had any antennas installed. On the other hand there was already installed a SIM card reader.

So the only way to operate was to install both antennas and WWAN card.
For this retrofit project I purchased:
1. Ericsson F3507g HSDPA WWAN + 7.2M GPS Card, FRU# : 43Y6513
2. 3G WWAN Antenna Kit (Blue and Red)
3. X200s Clear Plate with WWAN Icon
Total Cost 45 Euros delivered from Singapore.
http://4.bp.blogspot.com/-u1ekJNN5dyw/U ... -00381.jpg
For the installation and access we need to remove the following parts:
1. Battery pack
2. Keyboard
3. Palm rest with fingerprint reader
4. Keyboard bezel
5. LCD
6. LCD front bezel
7. Inverter card
8. Bluetooth daughter card
9. Integrated camera
10. LCD panel



