▁these ▁issues . ▁ ▁x LO UD ▁audio ▁enh ancement , ▁which ▁boost s ▁the ▁volume ▁of ▁the ▁music ▁and ▁notifications ▁and ▁impro ves ▁speaker ▁performance . ▁ ▁Cy an ogen Mod ▁and ▁other ▁Oper ating ▁System ▁replacement ▁It ▁is ▁possible ▁for ▁the ▁user ▁to ▁install ▁replacement ▁firm ware ▁( including ▁Cy an ogen Mod ) ▁after ▁the ▁phone ▁has ▁been ▁un locked ▁using ▁Sony ' s ▁Boot loader ▁Un lock ▁Tool ▁( which ▁is ▁only ▁available ▁for ▁out - of - box ▁car rier - un locked ▁devices ). ▁After ▁un lock ing ▁the ▁phone ▁with ▁the ▁un lock ▁tool ▁and ▁Fast boot , ▁the ▁user ▁may ▁install ▁the ▁replacement ▁firm ware . ▁ ▁The ▁last ▁supported ▁official ▁Cy an ogen Mod ▁was ▁version ▁ 1 0 ▁( based ▁on ▁Android ▁ 4 . 1 ▁J elly ▁Be an ), ▁however , ▁night ly ▁builds ▁exist ▁for ▁newer ▁versions ▁( including ▁Cy an ogen Mod ▁ 1 0 . 1 , ▁ 1 0 . 2 , ▁ 1 1 , ▁and ▁ 1 2 ▁which ▁is ▁based ▁on ▁Android ▁ 5 . 0 ▁L ol lip op ). ▁ ▁See ▁also ▁ ▁List ▁of ▁Android ▁devices ▁ ▁Sony ▁Eric sson ▁X per ia ▁mini ▁ ▁References ▁ ▁External ▁links ▁ ▁Official ▁Website ▁ ▁Live ▁With ▁Walk man ▁Category : Android ▁( oper ating ▁system ) ▁devices ▁Category : Mobile ▁ph ones ▁introduced ▁in ▁ 2 0 1 1 ▁Category : Sm art ph ones <0x0A> </s> ▁Em ily ▁Anderson , ▁O