calls do not enter to the Smartphone

ZF Model: ZC520KL
RAM: 2G
Firmware/APP Version: WW_15.2016.19.01.506
Frequency of Occurrence: 50%
Rooted: No
APP Name:
In many occasions the calls do not enter to the Smartphone, in spite of having all the signal
RAM: 2G
Firmware/APP Version: WW_15.2016.19.01.506
Frequency of Occurrence: 50%
Rooted: No
APP Name:
In many occasions the calls do not enter to the Smartphone, in spite of having all the signal
0
This discussion has been closed.
Comments
Good day.
Have you checked this matter with another different operator SIM card?
Please kindly help me disable SIM and enable again.
I would also suggest you can update the firmware to the latest WW-15.2016.1903.511 for a check.
(settings> system > system update)
If this problem still appears, please kindly try to backup phone files and factory reset.
Sorry for any inconvenience.