Some users have reported a "glitch" where they could successfully trigger a permanent unlock through the official app specifically during a system update download.
The name "Vario" is historically significant. Between 2006 and 2012, T-Mobile (Germany and UK) sold a series of HTC Windows Mobile smartphones branded as the (Vario II, Vario III—also known as the HTC Kaiser/TyTN II). VARIO UNLOCK TOOL TMOBILE-MOBILE PHONE
Postpaid devices must be active on the T-Mobile network for at least 40 days . Some users have reported a "glitch" where they
Go to Settings > Connections > More Connection Settings > Network Unlock . VARIO UNLOCK TOOL TMOBILE-MOBILE PHONE
Go to Settings > Connections > More Connection Settings > Network Unlock .