Question about Sony Ericsson C510 - Pay Monthly Cell Phone
I have this too, it just turns off what ever you are doing and it claims inactive sim, then goes to demo mode. i turn it on and off and on and off multiple time to fix it it may for for 5 days or 5minutes and breaks again.
Posted on Aug 10, 2010
Your SIM might be inactive (if not used for certain time , usually 3-6 months operator will shut it down. If your SIM is working with different phone then your SE is blacklisted due to reported lost/stolen or unpaid bills.
Posted on Oct 29, 2009
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Posted on Jan 02, 2017
hi there.... i faced the same problem. i was thinking that it was a problem of my mobile. but when i inserted a new sim, my mobile started working properly. u may try this... gud luck.
Posted on Nov 02, 2009
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