Default [q] help:wifi cant on/tick

i need help guys i have xperia l here the problem is when im trying to open the wifi connection it freeze and restarts,then after boot it will hang on the lockscreen then start booting again and again ( bootloop ) this is happening in the ff firnwares i flashed :
15.0.A.2.1
15.3.A.1.12
15.3.A.1.14
15.1.A.1.17

please help me fix the wifi i dont care anymore on the android version just want to use the phone