A:AnswerThe HP spectre has its own pen that can be purchased on HP and amazon I believe. Some of the hp specters include the pen with the laptop purchase. Just put your model number in to make sure you get the correct hp pen.
A:AnswerThe Bamboo Ink pen is made to work with Windows Ink which is only for Windows 10. I believe the Lenovo C540 is only equipped with Windows 8. If your computer meets the Windows 10 requirements, I suppose you can try upgrading the OS and see if you can use Ink, but the ultimate answer is no. Not compatible.
A:AnswerYes. The Bamboo Ink stylus is fairly unique in that it works on both Wacom and MSs ink technology. You do have to switch it between modes, if you have both types of tablets. With just one, you set it and forget it.
A:AnswerI would make sure it is connected with the envy x360. There were instructions with the device on how to connect it to the laptop and I would start there. Also does your envy support stylus? I know some of the models don't support it, and most of the envys that do came with a stylus. So you might need to check with HP. Since it has to have the right panel to be able to use the stylus.