Troubles with unlocking ZTE K88 (Trek 2 HD)
Have bought 1 month ago the tablet, today I ve tried to insert my SIM card and worked it but I ve seen that it requires PIN-code.
I live in the outside of USA and cannot find any At&t service, so I ve tried get my PIN unlocking code from here but there was showed:
Looks like you upgraded your device recently so we can't unlock it right now. Submit a new request after the 14-day waiting period ends.