See here:

• https://forum.fairphone.com/t/pencil2-installing-fairphone-open-os-using-fastboot-step-by-step-guide/17522
• https://forum.fairphone.com/t/pencil2-living-without-google-2-0-a-google-free-fp2/11587 F-Droid
• https://forum.fairphone.com/t/pencil2-f-droid-apps-for-fairphone/8671?u=paulkreuzer
• https://code.fairphone.com/projects/fp-osos/user/fairphone-open-source-os-installation-instructions.html - Official page

From N900 to Fairphone

1. Backup all settings from N900
2. Copy with ssh to pc
3. extract with script csv: https://blog.tersmitten.nl/how-to-export-your-contacts-from-a-n900-backup-directory.html
4. Todo

• Click multiple times on settings→about→Build etc., then activate developer mode
• New menu item appears: developer mode. Activate here root (ADB and Application)
• copy with scp item to home directory

scp ysaye.mp3 fp2@/data/data/com.arachnoid.sshelper/home/ysaye.mp3
 
/system/media/audio/ringtones/ysaye.mp3
 
su
 
mount -o remount,rw /system
 
mv /system/media/audio/notifications/ysaye.ogg /system/media/audio/ringtones/.
 
mount -o remount ro /system

or something similar.