the empty set

Data visualisation

The geography oftweets95 thumb 1280 1280

Beautiful data visualisations. Almost organic, as geolocalised tweets follow roads and maritime routes.

Ori. « The geography of Tweets » by Miguel Rios

Sweet Sixteen

Bday Emma 2017

Happy birthday pussycat ❤️

It’s the journey that counts not the destination.
The sun is shining more brightly today :)

Twenty years today

David and Fabienne

, we were in Colva, Goa, about to start a wonderful journey sharing our lives together.

7305 days later my love for you is stronger than ever.

Happy ❤️ anniversary!

Currently playing in iTunes: I Skovens Dybe Stille Ro by Niels-Henning Ørsted Pedersen.

How I upgrade iOS devices

My Apple Watch and iPhone 7 on my bedside stand

Friends and family often call me out after an unsuccessful iPhone upgrade, to help them figure out why data is missing or to restore a missing feature. This happens when upgrading devices, or after an unexpected event such as a broken, lost or stolen iPhone.

I have taken the habit throughout the years, as our systems get more complex and more interlocked, to write up lists of things to do and check, before and after. Probably a sign of my growing age too...

What appears below is a Note I maintain and share regularly with regards to the iPhone upgrading process. It might not all apply to you, as you might use different apps, and not run all the same setting as me, but the process should apply to a majority of users.

I assume you have full access to your devices and know all your passwords.

Switching iPhones

This is a list of things to think about when upgrading your iOS device. Applies partly when setting up a new device from scratch (lost or stolen device).


  • I run with all iCloud settings on, so Safari, Contacts, Calendar, Notes, Photos etc... are automatically synced to my new device;
  • I use 1Password for password management and Authy for second factor authentication.


  • Remove all unnecessary apps from old device;
  • Update all apps and system on old device;
  • Create a playlist of downloaded songs in Apple Music (see note below);
  • Unpair Apple Watch (forces a complete backup);
  • Perform an iCloud backup;
  • Switch old device to airplane mode;
  • Perform an iTunes encrypted backup;
  • Remove SIM card from old device and insert into new device;
  • Setup new device as new iPhone to update system;
  • Reset all settings and data on new device.
  • Restore iTunes backup to new device;
  • Wait for all apps to download (e.g. do it over night);

Bootup new device and complete install

  • Setup Touch ID;
  • Add Credit cards to ApplePay;
  • Install Email certificates;
  • Pair Apple Watch;
  • Audible download;
  • Kindle download;
  • Music download (use playlist);
  • Unlock Authy backup (you will need to enter your backup password).


  • 1Password has synced;
  • Authy has synced;
  • iTunes list of devices and remove previous device authorisation;
  • Google Photos is working correctly;
  • Health is beeing fed the correct data;
  • Check social networks passwords (Twitter, Facebook, LinkedIn, etc...) in System Preferences > Internet Accounts.

A week later (or more)

  • Remove playlist of downloaded songs from Apple Music;
  • Delete previous iCloud backup;
  • Wipe clean previous device;
  • Hand down device.

Annoying things:

Apple Music doesn't remember what songs were downloaded to your device (neither does Books, Audible or Kindle for that matter). This might be for space reasons (e.g. in case you upgrade to a device with less space?) so it might be a good idea to create a playlist with your downloaded songs if that matters to you.

Flight From The City

I love this movie by Jóhann Jóhannsson.

older entries


Hello, my name is David Roessli. I am a freelance web designer and developer based in Geneva, Switzerland.

This weblog is an nth attempt to solve my multiple online personalities and weblog/rss feeds burnout issues. (more)


I have been contemplating the idea of upgrading my desktop Mac since this spring. The latest 27" iMac (Quad-Core) seemed the perfect candidate, but the release of Apple's 27" Monitor last September made me stick with the Mac Pro...


The autopsy of an iconic album cover picked up on A stacked graph of successive radio signals from pulsar CP 1919, in a 1977 astronomy encyclopedia that originated in a 1970 Ph.D. thesis. Fascinating <3...


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