lenovo a6000 heating & bad battry backup 8h sh'down

My HTC mobile phone is work doing very slowely

my phone htc is under in warenty ..
the main problem is my earphone was damege .so how j get new earphone

Htc desire828.
Htc ka mobile sabse ghatiya mobile hai.
Mobile lene ke 10din baad hi mobile kharab ho gaya.
Iska service center v ghatiya hai.
Ham fas gaye le kar.