no antena after lcd replace

[nanobano]

hello .my z2 lcd cracked i change my only lcd (no frame ) when i test its have signal 

after instal i feel its have no weak signal in home i tested antena cable with multimetere its seems works corectly i cheeked connections they seems correct  

what percentage problem may be from antenna module ? 

or other 

please help me 

thanx

[Uliwooly]

@nanobano

Did you replaced the screen or did you get it done somewhere else or by Sony?

[nanobano]

i replaced its lcd .(only lcd) its frame is its original .

after replace for a short period charging drain was fast 

now charging drain is normal and  signal is poor iner of bulding 

may be signal antena mudule be spoiled ?

[Uliwooly]

@nanobano

That's a possibility, check the antenna