Hi
I bought a second hand Sony Xperia M4 Aqua E2303 and I'm having trouble making and receiving calls. I'm hoping someone can shed some light on what may be the problem.
The phone recognises each of the different sims ive tried (showing the network name in the top info bar) but none of them are able to make calls, the call just times out and ends without any dial tones.
The signal strength is always very low for each network so I wondered if there was a hardware issue with the antenna. While searching for some information I ended up on the Service Menu > Sim Lock screen. As each of the sims I've tried have been recognised, I assumed the phone was unlocked. However, the SIM Lock screen details are confusing me. This is what is displayed -
[X] Network: 0
[X] Network Subset: 0
[X] Service provider: 0
[X] Corporate: 0
]X] SIM: 0
From what I've read so far, when an "X" is next to either Network or Service provider, along with a number, the phone is locked with a certain amount of tries left to unlock it with a network unlock code. If Network or Service provider is marked with an "X" and has a "0" after it, the phone is hardlocked to a network.
What is confusing me is that every sim I've tried in the phone has not asked for any network codes, so again I am assuming the phone is already unlocked to all networks, but why is every line of the above info marked with an "X" and a "0"? Every screenshot I've seen of the SIM lock screen only shows an "X" next to Network, but why does every line of my phone show an "X"?
Thanks for any info you can provide.
I bought a second hand Sony Xperia M4 Aqua E2303 and I'm having trouble making and receiving calls. I'm hoping someone can shed some light on what may be the problem.
The phone recognises each of the different sims ive tried (showing the network name in the top info bar) but none of them are able to make calls, the call just times out and ends without any dial tones.
The signal strength is always very low for each network so I wondered if there was a hardware issue with the antenna. While searching for some information I ended up on the Service Menu > Sim Lock screen. As each of the sims I've tried have been recognised, I assumed the phone was unlocked. However, the SIM Lock screen details are confusing me. This is what is displayed -
[X] Network: 0
[X] Network Subset: 0
[X] Service provider: 0
[X] Corporate: 0
]X] SIM: 0
From what I've read so far, when an "X" is next to either Network or Service provider, along with a number, the phone is locked with a certain amount of tries left to unlock it with a network unlock code. If Network or Service provider is marked with an "X" and has a "0" after it, the phone is hardlocked to a network.
What is confusing me is that every sim I've tried in the phone has not asked for any network codes, so again I am assuming the phone is already unlocked to all networks, but why is every line of the above info marked with an "X" and a "0"? Every screenshot I've seen of the SIM lock screen only shows an "X" next to Network, but why does every line of my phone show an "X"?
Thanks for any info you can provide.
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