Sir i have problam in my deavice . modal m30s . in my phone show sum think purpal . thia ia screen bleading but my phone never be fall boun by why shude this think will happen

Sir i have problam in my deavice . modal m30s . in my phone show sum think purpal . thia ia screen bleading but my phone never be fall boun by why shude this think will happenSir plese tell me a solustion