The Tecno T526 comes with 1234 or 0000 as a default code, if you have not changed the same and entered a custom code in place. The phone gets a proprietary OS, making it difficult to change the code as it is possible to easily change the forgotten codes in android and iOS. The phone gets 64 MB RAM and 128 MB of internal storage, expandable up to 16 GB via MicroSD card.