How flash Radio and HBOOT:
1. HOX+ with ROM 1.17.401.1 and (re)locked
2. File firmware.zip extracted from OTA_ENRC2B_U_JB_45_HTC_Europe_1.17.401.3-1.17.401.1_release_315713d616d00wmigw90o1.zip
3. AIOK -> Flash Factory RUU zip...
Another (perhaps a simpler) option: JMZ Notification Power Saver Disabler from Google Play here. The application works well on the international HOX+ with root - tested.
Option described here and here fail - option is grayed......
If you need it back, you have to flash a custom ROM like InsertCoin...No need to flash custom ROM. For dock mode on stock ROM just install two applications: DockMode.apk and HTC_Dock_Screen.apk. That is all. Tested on HOX + international with ROM...
Many thanks. Download from File Factory is horror. No free, no paid, no way.
I sent $ 10 to you for this upload.