Thx for the tip about this "manual" Denim update.
Worked like a charm for my 1520 HK (RM-937)

I uninstalled "Preview for developer" before doing the following steps
1. Backup your data
2. Install "Windows phone recovery tool" (first result on google)
3. Start the application
4. Plug the phone by USB
5. Confirm to install the update displayed. This will download about 1.7 GB from internet.
6. Wait.. and finish!
Some reboot are required after the first boot.
For sure, i'm not happy to set some "lost" settings again.. but i have Denim with a fresh install.
OTA version deploy expected for 2047
