Can't update FP2

[Johannes]

See here:

Update gets stuck at "just a moment" after downloading

Avoid that your phones enter standby mode during the update. You can do so by: Taping on the screen from time to time or Set the “sleeping” time to the maximum (30 minutes) in Settings --> Display --> Sleep or Settings --> Developer options --> enable “Stay awake” (phone must be connected to charger)

For other tips and options, see here:

FP2 Update Problems - troubleshooting

This is a troubleshooting guide for updating the FP2. For the FP1(U) check this guide. Even though the updates are tested before they’re released, sometimes they don’t install smoothly on some of the phones. If you’re unlucky enough to experience issues, then there’s quite some information on how to get going again; both official information on the Fairphone Support pages and unofficial tips and tricks by other users on the forum. This wiki aims to provide an overview. If …