To lockpick in Oblivion Remastered, you need to complete a timing-based minigame involving tumblers inside the lock:

• Approach a locked door or chest while holding a lockpick and interact to start the minigame.
• You will see a cross-section of the lock with several tumblers (pins).
• Use the left control stick (on consoles) or the appropriate keys (e.g., W on PC) to raise the inner metal piece under a tumbler.
• The key is to "set" each tumbler exactly when it reaches the top of the lock and moves at its slowest speed.
• When the tumbler is at the right position and speed, press the button (A on Xbox, X on PlayStation, or spacebar on PC) to lock it in place.
• If timed correctly, the tumbler will stay set and change color to indicate success.
• Repeat this for all tumblers in the lock.
• If you mistime and set the tumbler too early or late, your lockpick will break, and all previously set tumblers will reset (unless your Security skill is high enough to keep some tumblers set).
• Locks have different difficulty levels with varying numbers of tumblers and speeds.
• Patience is crucial: wait for the tumbler to move slowly before setting it to avoid breaking lockpicks.
• Increasing your Security skill improves how many tumblers remain set after a failed attempt, making lockpicking easier over time.

Alternatively, you can use Alteration magic spells like "Open Lock" to bypass lockpicking if you have a high enough magic skill, or obtain the Skeleton Key from the Nocturnal quest to unlock any lock without minigame frustration

. In summary, successful lockpicking in Oblivion Remastered requires careful timing to set tumblers at their slowest top position, patience to avoid breaking lockpicks, and improving your Security skill to reduce penalties from failure