There's a reason major device updates tend to roll out in stages. Some of the earlier recipients of the OnePlus One's big July OTA were hit with a bug where the PIN unlock screen did not display properly. OnePlus hasn't wasted any time hopping on this issue, and they're now pushing out a hotfix to the limited people who received the first OTA already and those who have flashed manually.
OnePlus One Receives A 2nd OTA - A Hotfix That Addresses A Screen Unlock Bug Introduced By XNPH30O [Download] was written by the awesome team at Android Police.
