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Sony Xperia Z3 Compact released in Sep. 2014.

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Can not find GSM / 3G / 4G signal

My Sony z3 compact can not find GSM / 3G / 4G signal. My SIM card works and it does not help to put another SIM card in the phone.

What could the problem be ? Can signal cable must be well resolved or broken ?

Hope there is someone who can help me with this problem .

Otto Sort

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Hi,

Read these two quotes online, regarding no signal problems on Xperia Z3 compact. It might be worth trying.

1."Go into the APN settings and change the APN protocol to iPv4 only (it was iPv6 before) seems to fix the problem.

How to find the setting: Menu -> Settings-> Wireless and Network- > more -> Mobile networks -> APN -> "your mobile network" -> APN protocol -> Set to IPv4.

2. "I had it on IP v4, and it worked by changing it to IPv4/IPv6"

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