Partners HTC Sensation (normal stock handset from Telecom running Android 4 after recent OTA update) won't start up. Powers up ok but stays on the attached screen - no Android starting up. He says he did a NeoReader app update this morning, then the screen never really started up properly after that. When booting up (after battery and SIM out) it says Android Is Upgrading - Optimizing Applications 1-28 (which it goes through ok), then says Starting Applications - then nothing but the attached pic.
Any way to get this up and running again???