A 6021 for work and Avery battered, old but faithful 6310 that kicks around for personal use.
Both have O2 contract SIM cards in them.
Both have call duration/counter facilities in them - not that I care that much about them.
One evening, with nothing better to do, I tried clearing these counters - with no success. They asked for a security code. Now, I have never set a code for these; but checking through the SIM card info and user guide for the 6310, I can't find what the default code is for this second tier security.
It looks as though there could be a code of up to 10 digits! Gulp. I know I didn't set one for my personal phone At least I'm pretty sure I didn't. The SIM card for my 'business' phone came after another user had used it and as the phone came with no other security features set, I assume that the unlock code hadn't been set there.
Sorry for the delay. The Chardonnay and dinner called.
Yup, I do mean just the counters. I needed the PUK once when a certain member of the family tried too many codes on the basic security code that I used and locked the phone out. And then again when I lost the phone, thought it had been stolen, reported it to O2, found the phone and needed to re-enable it.
Looks like I shall just have to put up with it; but I was just curious.