A bug discovered accidentally by a G1 owner causes the mobile phone to restart when users type in the word "reboot" reports the BBC.
The phone, powered by Google's Android software, restarts when owners type in the word "reboot" soon after starting up the device.
"I was in the middle of a text conversation with my girl when she asked why I hadn't responded," said a user called jdhorvat in the description of his discovery that was posted to Google's problem reporting website.
"I had just rebooted my phone and the first thing I typed was a response to her text which simply stated "Reboot" - which, to my surprise, rebooted my phone."
Google acted swiftly to resolve the problem, which causes the phone to interpret any text entered just after the phone was turned on as a command.
Google has rushed out a software fix for the bug. Already available in the US, UK customers should receive the update today. The phones are sold by T-Mobile in the UK under the name "G1".