Sony Ericsson Z750i Cellular Phone Logo
Posted on Aug 20, 2011
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Phone Z750i error message insert USIM . I have tried inserting SIM cards several times but phone will not work. I have tried sim on another phone and it works. Any suggestions to get phone to work

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  • Posted on Aug 20, 2011
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Joined: Aug 12, 2011
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If your phone displays the 'Insert correct simcard' then your phone is currently locked to particular network. You need to unlock to use it with other network.
There can be many ways to Unlock your phone. As far as i know unlocking by codes is the simple and safe way. I will suggest the website
Unlock-zone.com which is doing good service and they were recommended highly in the cell phone forums.
I used them to unlock my cell phone. contacted them and within 30 mins i had my unlock code and my phone was unlocked.
Hope this helps.

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