Asus Zenfone Max Signal Problem

[clashofclansgen]

ZF Model: ZE554KL
RAM: 2G
Firmware/APP Version: gjbhh
Frequency of Occurrence: xfxfxf
Rooted: No
APP Name: xfx

Signal not working properly... Clash of Clans Gems Generator

[ServiceH_ASUS]

Hi clashofclansgenerator1o1 What's your phone’s firmware version (Settings > About phone> Build number) Please check it in safe mode. (https://www.asus.com/support/faq/1005163) Does this problem appear when you in other different location? Please help to confirm, thank you:)