SIM/Network Lock

[Anonymous]

Hello, I am O2 pay Monthly costumer and I would like to use different SIM card in my phone. I am not from UK so when I am travelling to my country I would like to use my home SIM card.

I have "network unlock code" provided by O2 but it does not work. After few online research I found that it does not work because my phone is "hardlocked" as they call it.

Phone: Sony Xperia U or Sony Xperia ST25i

When you press *#*#7378423#*#* and access the service menu > simlock

I am seeing this menu:

[X] Network 0

[ ] Network Subset 5
[ ] Service Provider 5
[ ] Corporate 5

Does anyone know how to reset the network counter so I can use my "Network unlock code" or if there is anything else I can do to fix that?

Thank

Christos

[MI5]

If this is due to too many failed attempts at entering the wrong code it will be locked forever, however, my phone shows the same is is not locked out, so I think you are entering the code wrong or have the wrong code.

[Anonymous]

A sim free / unlocked Sony Xperia should show something like this in the SIM lock section:

[ ] Network 0

[ ] Network subset 0

[ ] Service provider 0

[ ] Corporate 0

[ ] Sim 0

[MI5]

It should but as mine is locked to O2 it has the x in the network box too.