I'm creating this thread to document the several different ways to reset this phone. I've seen in umpteen different places how to do a factory reset. What I''m looking for are lesser resets. Start with a simple reboot that doesn't clear out any data, and work our way up. Frequently one of these lesser resets will solve a problem.
I am updating this first post as I learn from the responses below. The early responses below (from 19-Jan-2010) were to my original post here that ask for various ways to do resets. Respond with your own if you know of any that I've missed.
Dealing with hung apps
If the phone is frozen, try holding the home key to see if the system can force the frozen application to the background. Also, try an app killer like Advanced Task Killer.
Clean shutdown and reboot of the phone -- aka power off
Press and hold the red call-end button. On the popup menu, select "power off". Confirm with "OK". Shut down should take just a couple seconds. Press the red button to power back up; it'll take about a minute to boot (with a few snappy graphics flourishes and loud sound effects at the end).
Remove and replace battery
The back cover slides up and off. You have to push pretty hard to get it to move. Recommend holding the front of the phone with your fingertips (thumb at bottom over USB jack and other fingers at top) and then press hard on the bottom two corners of the back cover, pushing in the "up" direction, towards the camera lens. It'll move a few millimeters up and come loose. Note that the tiny hole on the back above the USB jack is not a latch of any kind -- it's the hole through which you can hook a strap.
Soft Reset
I've seen reported that the following key combination does a "soft reset": hold down red and green buttons and press menu button. Not sure what this is yet, exactly. Different from reboot how?
Hard Reset
A factory default reset (aka "hard reset") removes all information from your device and returns it to a state just like it has never been used before. All contacts, messages, emails, third-party applications, etc. will need to be reinstalled after performing a hard reset.
Menu -> Settings -> Security -> Factory data reset
Follow the on-screen prompts to complete. This process will take 5-10 minutes. Again, this erases all data on your phone!
And just because I need to note it here until I find a better place, dialing ##786# on the phone gives you all sorts of interesting phone hardware info.
I am updating this first post as I learn from the responses below. The early responses below (from 19-Jan-2010) were to my original post here that ask for various ways to do resets. Respond with your own if you know of any that I've missed.
Dealing with hung apps
If the phone is frozen, try holding the home key to see if the system can force the frozen application to the background. Also, try an app killer like Advanced Task Killer.
Clean shutdown and reboot of the phone -- aka power off
Press and hold the red call-end button. On the popup menu, select "power off". Confirm with "OK". Shut down should take just a couple seconds. Press the red button to power back up; it'll take about a minute to boot (with a few snappy graphics flourishes and loud sound effects at the end).
Remove and replace battery
The back cover slides up and off. You have to push pretty hard to get it to move. Recommend holding the front of the phone with your fingertips (thumb at bottom over USB jack and other fingers at top) and then press hard on the bottom two corners of the back cover, pushing in the "up" direction, towards the camera lens. It'll move a few millimeters up and come loose. Note that the tiny hole on the back above the USB jack is not a latch of any kind -- it's the hole through which you can hook a strap.
Soft Reset
I've seen reported that the following key combination does a "soft reset": hold down red and green buttons and press menu button. Not sure what this is yet, exactly. Different from reboot how?
Hard Reset
A factory default reset (aka "hard reset") removes all information from your device and returns it to a state just like it has never been used before. All contacts, messages, emails, third-party applications, etc. will need to be reinstalled after performing a hard reset.
Menu -> Settings -> Security -> Factory data reset
Follow the on-screen prompts to complete. This process will take 5-10 minutes. Again, this erases all data on your phone!
And just because I need to note it here until I find a better place, dialing ##786# on the phone gives you all sorts of interesting phone hardware info.
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