I've bought a phone Nokia 6300 locked in Orange network. I went to a GSM shop and they unlocked my phone.
On the net I read that based on IMEI code they find the unlocking code but instead they have opened my phone and "read" something with a device. What kind of method is that ? Is it better ?
How can I check if it's completly unlocked ?
Also, if the software from the phone will be erased and written a new one, a newer firmware version, there the phone will be still locked ? Where is that locking feature ? Isn't like the motheboard bios when you flash a new one everything is changed ?
I saw on Nokia web site that I can update the firmware. The phone camed with 5.00 firmware customized by Orange, if I'll update to 5.50 which is on Nokia website, the customized Orange software will be erased ? Or should I go again to that GSM shop to erase the phone and write the new software with that devices ?
That's all for now,
Thanks if anyone can answer my questions.