In the first month, you'll likely encounter a couple of things that could worry you. Maybe the button feels sticky, or the pen doesn't fire every time. Before you panic, try cleaning the contacts. A cotton swab with a little rubbing alcohol can work wonders on the threading where the cartridge connects. Similarly, if the charge port feels loose, check if it's just debris or a cable issue. A different cable might solve it.

But here's the thing: if you're having to fiddle with it constantly, that's a sign of poor build quality. A good pen should work without thought. If it's acting up within the first week, that's a warranty issue. Contact the manufacturer or retailer. Don't try to open it up—you'll void the warranty and possibly damage it further.