I need a new adapter for my fujitsu tablet - Fujitsu Tablets & eReaders

(a) Ensure the Wireless Device Switch is On. Just throwing that out there. Your WiFi adapter is noting down some kind of signal strength as well, yes?
(b) Try uninstalling the WiFi Adapter (Intel Centrino Advanced-N 6205 (802.11abgn 2x2), or, Atheros XSPAN HB116 802.11abgn) in Device Manager, then rebooting and let Windows reinstall the device.
(c) Try updating the drivers from here.
http://support.fujitsupc.com/CS/Portal/support.do?srch=DOWNLOADS There are Windows 8.1 x86 and x64 driver packages there.
(d) If the device is working fine (according to Windows) but is still not receiving or sending, then it may be some antenna problem, and you'll have to contact Fujitsu Support for repair. Make sure you've registered your new tablet with Fujitsu.
Post back with how this goes.

check ur laptop battery and charger are okay. try to on it with direct adapter power if it will be on so replace ur battery

Amazon has them under 1.8 inch Hard Drives. That is what mine is, but it is expensive.

From Fujitsu's Support page for the ST5112 you need to install all of
these to get the App buttons working Properly

Button Driver
Button Utilities
Hotkey Utility
And you might also need the Hotkey Driver

That's how I got my St5032D app buttons to work.
If all fails you can also try the vista drivers.

Good Luck

Unfortunately with a tablet PC, the USB ports are all integrated into the motherboard itself. To upgrade that involves finding and then installing a new motherboard, and hooking up all the internal components again. This is generally well beyond the realm of what a typical PC user can accomplish, requiring a professional. To do this upgrade, the costs involved aren't much less than buying a new tablet altogether.

the internal wireless card is very likely to be soldered on the board and then you probably cannot swap it by yourself, you can buy an external one(like an expresscard one) ore have the one on-board swapped by Fujitsu(with or without warranty coverage.)
please rate.

dear

the consumption power ampere is symptom to your voltage of touchpad

trying installing driver touch pad again

and try to use FN + F9

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cropp

Please take the laptop to a repair shop for analysis. Possibly faulty motherboard or other parts. Repair price may be high.

Amber, blinking
AC adapter and battery are
available and waiting to charge
(battery is out of thermal range).

Amber
AC adapter and battery are
available and system is charging.

This is from the manual.

Good Luck.

THe manual for your specific model can be found here: http://support.fujitsu-siemens.com/Manuals/ShowDescription_KMT.asp?DokuID=202607 Documents for othe models and languages can be found here: http://support.fujitsu-siemens.com/com/support/manuals.html