In the Wuthering Waves Main Story Quest called Truthseeker's Pass, you must enter a hidden cave and turn off three Photonvaults by solving puzzles that utilize the Chronosorter to unblock paths. Here's how to solve them and turn off all the Photonvaults to complete the quest objective.
Turn off the Photonvaults and the Photon Barrier in Wuthering Waves
As soon as you receive the objective above, activate the Chronosorter and set it to the middle configuration, as illustrated in the image above. A lopsided platform with a Clang Bang challenge will appear in the center of the room.
The platform isn't very elevated, so you can easily jump on it with a tall character. Interact with the Echo Challenge: Clang Bang to begin. During the challenge, you will transform into a Clang Bang and must complete an objective. If you stray from the challenge route, it will automatically fail, but you can try again.
While in the Clang Bang form, head toward the leaping device up ahead. Make sure to go in a straight line and avoid going too far left or right, or the challenge will fail. Once you're on the leaping device, wait for it to propel you toward the ice wall. The impact of the Clang Bang will break the ice wall, opening a small hidden area.
In the small area, you'll immediately spot a Chronosorter. Activate it and move it to the leftmost section to prompt a bridge to appear.
Get out of the small area through the hole in the wall. You'll find yourself in the area where the bridge had spawned.
As soon as you go through the hole in the wall, you'll find the Tacetite Fulminate (yellow stone in a rock) in a corner. Use the Levitator to pick it up.
While the yellow rock is with you, cross the bridge and head in the direction of the Chronosorter. Then, turn left to find a brightly-lit area with a fissured boulder blocking the path. Throw the yellow rock you're levitating onto the boulder by using the Basic Attack button, which will cause the boulder to break, opening up another hidden path.
As soon as you enter the hidden path, you'll spot a Supply Chest, which I encourage you to loot as it will be hard to find the area later on. Once done, defeat the TD in the large clearing to unlock the Chronosorter beside it.
Once the Chronosorter is unlocked, activate it and switch to the leftmost configuration. Doing so will remove the rocks blocking the path pictured above. At this point, all of the blocked paths have been unlocked, so return to the first Chronosorter.
This time, change the configuration so that it's in the leftmost timeline, which will remove the floating platform and unlock all of the Photonvaults.
From here, simply switch to a ranged character and turn off the three Photonvaults by attacking them with a targeted shot. The two are right in front of you, while the third is in the last room that we had unlocked (the quest navigator will guide you there).
For more on WuWa, check out our Wuthering Waves Resonator (Character) Tier List here on Pro Game Guides.
