Many customers ask me about wifi and Bluetooth problem of s6, So finally i got it and share with you.
Symptoms: When your phone ask password again and again, means problem in wifi module.
if your phone can’t find the wifi and not show the signals of wifi then you use this solution for remove the problem.
Because phone’s wifi or Bluetooth module is damage.
Solution: Just replace the highlighted ic named (u4000), i hope your problem will be solved.