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md20

When my phone is in sleep mode, I do not receive calls or text. I have a unlocked Z3 (model D6603). I have tested the problem with stamina mode on and off. No difference. In my testing, the phone works 100% of the time when awake, but when sleeping, in the same location, the calls are never received. I asked sony about this, and as always, they suggest run through pc repair, which won't work on unlocked phone. This wont work on unlocked phone. I have done factory resets and it has not helped.

So, has anyone else seen this behavior? Any suggestions on what to look at?

md20

Hi shlunky11.

Your problem sounds very much the same as what Im experiencing. I have seen a few other similar post about the same type of issue with the Z3 series, but no answers. Im am very curious as to what sony finds on your phone. Please do let me know.

Not sure about flashing the radio, seems tricky.

Thanks for the post.

Uliwooly

@md20

Settings > about phone > status > signal strength do this with both phones

also

which android version and build number does your phone has?

I have seen the missed calls with a Z3, Z1 and T2 Ultra with AT&T but not texts.

md20

Andriod version 5.1.1

Build 23.4.A.1.200

4G signal -85dBm to 95dBm on my Sony phone. The work phone is a Windows phone. No easy way to check signal strength.

Dont think it is a matter of signal strength. The phone works fine when awake. I think something causes a disconnect when the phone goes to sleep and it is in 4G.