Help With Antenna Or Motherboard Problem With 3g Reception

Discussion in 'Xiaomi Mi 4' started by kirev, Nov 25, 2017.

  1. kirev

    kirevMembers

    Oct 28, 2014
    11
    0
    11
    Male
    Skopje, MACEDONIA
    #1kirev,Nov 25, 2017
    Last edited: Nov 26, 2017
    Year and a half ago my wife dropped her Mi 4 (3G) in water. It worked until like two months ago and it stopped charging. In a service they replaced the connector and battery (i had a replacement ready). It works good, BUT, on Macedonian Telekom (Deutsche Telekom owned) 3G network it does not work any good any more (it worked just fine for two years). If I put a VIP SIM card it works good, but my wife's SIM is on Macedonian Telekom network and cannot change it :(

    So, I have a theory that either the motherboard is faulty (water, corrosion, time...) OR the repairman that replaced the connector and battery did something to the antenna and it is disconnected or something.

    How to check both?

    Thanks upfront guys :)

    EDIT: IT'S THE SAME WITH THE PHONE CALLS AND INTERNET. Forgot to mention :(
     
  2. dogiex

    dogiexFinnish language.Translator

    Aug 24, 2015
    1,089
    372
    142
    Male
    Finland
    Have you checked that the APN settings are 100% correct?
     
  3. kirev

    kirevMembers

    Oct 28, 2014
    11
    0
    11
    Male
    Skopje, MACEDONIA
    #3kirev,Nov 26, 2017
    Last edited: Nov 26, 2017
    Totally. But the problem is with the phone calls, too