Apple has acknowledged an issue affecting some iPad Pro units making the tablets unresponsive after charging. The company advises users facing a similar issue to try force restarting the device to make it functional again. Not long after the iPad Pro was launched, several users took it to Reddit, and Apple Support Communities forum to report that their iPad Pro unit is becoming completely frozen after charging, rejecting any touch input and other interactions. "I got my iPad Wednesday, spent the evening getting it all setup. Restored from back up, ensured everything was there, wiped my iPad air 2 (sold it), deleted its back up and went on with my normal routine," a user wrote. "At night it was down to 40 percent so I charged it and went to bed. When I woke up it was "dead". It wouldn't wake up. I needed to perform a hard reset to get it to come to life. Worked on it for a couple of hours and had to run an errand. Plugged it back in as I was going to need a full charge later that day. Came back to it, same thing. Dead. I needed to perform a hard reset to get it to turn on." The Cupertino-based company has responded to such complaints with a support document. The company says that it's investigating the issue, but in the meanwhile, users can hard restart their iPad if they face this issue. For those unfamiliar, you can force restart your iPad or iPhone by pressing and holding both the Sleep/Wake and Home buttons for at least ten seconds until the Apple logo is seen. This is the first issue to have been reported about Apple's iPad Pro. The company unveiled the iPad Pro, its largest tablet to date, at its September event alongside the launch of iPhone 6s and iPhone 6s Plus.