Hi All. I sincerely hope someone can help. My husband has a disability. He just upgraded his Ipad to the latest ios 10.1 (I think thats it) and we have major problems. First he lost the wifi connection. So I restarted the device by force quit. Now it has come back on and it is asking for a passcode of 4 digits. We do not have a 4 digit passcode. His old passcode is about 8 characters but it asks for only 4. I checked his icloud account and the ipad device looks blank too. I cannot lose the data on his ipad, he has lots of photos and documents with his disability support group. I am worried if we erase the device the icloud back up will not work. Please can someone help urgently. he needs it everyday.