Tap More networks (under Connections tab, or More, Wireless & networks, Wireless Controls, Wireless Manager, Phone Information).In 'About Device' go to the next menu and choose 'System Updates' option and. How to use dr.fone toolkit - Android SIM Unlock to unlock Samsung Galaxy. Does anyone know what it is? Im on Sprint if it makes any difference. Under 'System Updates' there is the usual(Profile, Prl, software, and firmware update buttons) but I've never seen the last option, which is UICC Unlock. Before beginning these directions, insert your activated Ting GSM X1 SIM card. For a number of these updates you'll need your Master Subsidy Lock or MSL-this is a six-digit code provided to you by Ting in your activation email you can also find this information in Device Settings. To do this, a Carrier Wipe, and Profile & PRL update are required. The first thing you will need to do is ensure that 3G/LTE (if you have an LTE device), voice, and text messaging are all working properly on your device. The following steps are intending for the majority of CDMA LG devices running Android software.