Method2: Update Keyboard Driver. 1. Right-click on the Start icon and select Device Manager. 2. Expand Keyboard. 3. Right-click on the Keyboard driver and select Update Driver Software. 4. Restart your system. Method 3: Confirm whether its a hardware or a software issue. I would suggest you to go to the safe mode and see if the issue persists. AcerSwitch Alpha 12 Convertible 2-in-1 Laptop: The Aspire Switch 12 is a versatile 12.5" 5-in-1 product with a detachable wireless keyboard that can be used as a laptop, tablet with or without keyboard, or desktop PC via its 5 modes (notebook, pad, display, tent and desktop). Ingeneral, the performance difference is about 10 to 30% between the Core m models and the two Switch Alpha 12 models. An exception is the work score of the HP Spectre x2 12, which it achieves FAQ& Answers. Mine does not but a universal one might work. Only about $20 with free shipping. I haven't ordered one yet. Jack E/NJ. The Targus 45W USB Type-C Laptop AC Wall Charger works so that or something with the same specs. Thanks @Vortech for the info. WorkingFor Notebookcheck HP Elite x2 1012 G1 Acer Aspire Switch Alpha 12 SA5-271-70EQ Acer Switch 5 SW512-52-5819 Dell Latitude 12 5285 2-in-1 Acer has treated the keyboard to a new TheSwitch Alpha 12 has a 12-inch touchscreen that's really quite nice. The resolution is 2160 x 1440, slightly less than the Surface Pro 4's, but not enough to make a huge difference. More November2016. Try unplugging the AC adapter and holding the power button down for about 30 seconds. This is a power reset and should bring it back up. If not and it still will not power on when using AC power, we recommend the system be checked by our repair depot. hello i have an acer alpha 12 switch, SA5-271. I did a recent Windows update, and from that it didn't work anymore when I press the on/off button it starts up, but it's on the black screen with the acer logo and the loading balls, but it doesn't turn on, it's for a time like that and it shuts down and immediately starts the reboot with the same black screen with the logo and loading balls. plRnq.