i usually put my phone to airplane mode at night.
last night while in airplane mode, when i try to unlock the screen, i messed up the pattern, i tried all 20 times allowed and now it prompting me to sigin with my google account. since the phone is in airplane mode, i could not signin to google account. so now i am banging my head what to do. I installed sony pc companion and it is too telling screen locked and Please unlock.
i am running out of options. pls advise. i have no problem if you tell me a way to atleast format the phone.

Thank you.