Samsung Clone poor cellular signal

[Enrique.gf]

Hello Guys

I have a samsung galaxy S5 clone (MTK6582), it has very poor cellular signal reception (from -99 to - 110db) and sometime it says "only Emergency", I know its not the sim card because when I put it on another phone it works correctly and has good signal intensity (-70, -80 db).
I found some repair manual for similar smartphones (MT6582) and it says that to correct poor IQ signal, it has to be calibrated with META tools and RF mode.
I ve got the MAUI Meta tool but I cant connect my smartphone with it.
I am also not sure if this is the real solution to my problem.

Can some one help me with this?

Best Regards,
Enrique

[Enrique.gf]

So far I have not been able to fix this problem I tryied to replace RF PA which is an AHORIA AP6693, my next guess is the transiever IC which is an MT6616V.

any sugetions are welcome

[WuddaWaste]

Sorry to hear about the problems. The first thing I would do is try to identify where the physical antenna is and firmly press against any contact points to make sure it's properly attached.

I hope you get it figured out. Good luck!