| Please before read codes from server you have to make sure that device ask for network password, if not, dont order, trackfone dont ask for network password, same for sprint, t-mobile, verizon or metroPCS.
Blang what I need from you is to add new security read codes from server, I had to downgrade a SM-G935A from build QE or QF to QA6, only january and february security devices works |