A detailed guide on how to enable the full Android Market access on your Nokia N900 or other NitDroid supported device follows:
NOTE - The process of installing Android on your Nokia N900 is not official supported by Nokia. Please do not proceed unless you understand the risks of modifying the general operation of your device.
DISCLAIMER - This site nor the NITDroid developers will not be responsible for any loss of data or malfunctioning of your device which may occur from using this guide. Please proceed at your own risk.
NOTE - You will first need to install Android 2.3 Gingerbread on your Nokia 900 or other supported NitDroid device. You can find a guide on how to install Android 2.3 on your N900 here.
NOTE - Before proceeding please make sure you have backed up up your data on your device.
- enable a wifi connection ('Settings' app > 'Wireless & networks' > 'Wi-Fi settings')
- set up your Google account in settings ('Settings app' > 'Accounts & sync' > 'Add Account')
- Open the 'Market' app (from the Home screen or app launcher)
- Leaving the Market app running, return to the Home screen and open the 'Settings' app again
- Within Settings select 'Applications' > 'Manage applications' > 'Running' (from Tab at top)
- Scroll to select the 'Market' app > press the 'Clear Cache' button > then press the 'Force Stop' button (Do not press the 'Clear Data' button)
- Press the back button (to go back to the list of running apps)
- Scroll to select 'Google Services Framework' > press the 'Clear Data' button > 'OK' (to confirm) > then press the 'Force Stop' button
- Return to the Home screen
- Launch the 'Market' app again, which will give an error "Attention an error has occurred..." > 'OK' button
- Shutdown by holding power button > 'Power Off' > 'OK'
- Restart, wait for wi-fi to reconnect, open 'Market' again
- (You may have to reboot several times and check 'Market')
- The opening 'Market' screen should no longer be blank, and many more apps (free & paid) should now be available
NOTE - While you should be able to download almost any Android 2.3 supported application onto your device, you won't necessarily be able to install and run them properly.
If you prefer you can also use the following video guide by GAT Guy