BlackBerry/TCL has disabled the described method of gaining access to the advanced features of the Updates app in the firmware versions of October 2017 and later. However, there's a way to still get access using the Janus vulnerability and installing an older or patched version of the updater. But this, too, will be gone after the December 2017 update.
Entries tagged as blackberry
android apple apps aptoide comparison display google iphone keyone lcd messenger nexusone passion resolution ringtones secrets tones wireshark engineering hidden mmi mode testmode firmware 50g allsound asus audiomate calculator features fenix flash galaxy-nexus garmin hp instar ip-camera oscilloscope ota patching rom samsung scope smarteye software tektronix touch touch&go touch2 toyota unlocking updates upgrade wansview wifi hotel hotelmode menu television tv
USE THESE AT YOUR OWN RISK! Especially the Engineering Mode has a few options which can trigger DTEK (showing your OS as compromised) and probably do worse.