HT4061: iOS: How to find the serial number, IMEI, MEID, CDN, and ICCID numberLearn about iOS: How to find the serial number, IMEI, MEID, CDN, and ICCID number
You may be able to connect the device to the computer and copy the pictures off, I'm not certain if the device being "disabled" will affect this or not.
Basically, stop trying random passcodes.
For what reason have you failed to regularly sync and backup your device? Had the device been lost or stolen you would be out of luck. Frankly, there is no excuse for not regularly backing up or syncing your device and you'll get no sympathy here because of your decision to not safeguard your data.
Restore the device from the most recent backup and consider this a lesson learned.
And stop letting "friends" put passcodes on YOUR devices.