How to get the Radio Silence achievement in Genshin Impact

Radio Silence is a Genshin Impact Challenger: Series V Achievement that can be obtained by getting locked on by the Thunder Manifestation before attacking it. It's an easy achievement that you can only get by patiently waiting at the start of the boss battle.

How to get locked on by the Thunder Manifestation in Genshin Impact

Start by heading to the Thunder Manifestation's area on Seirai Island. It's located at the center of Amakumo Peak. To get to the boss, head to the Teleport Waypoint directly below it, then interact with the Thunder Sakura Bough to summon an Electrogranum. This will allow you to travel with the Thunder Spheres, which will take you to the boss area.

Related: Who is Kabukimono in Genshin Impact?

At the start of the battle, do not attack the boss. Don't trigger summons that can do off-field attacks either, such as Guoba, Zhongli's pillar, and more. Instead, wait for the boss to complete a series of movements that will place a target symbol on your on-field character, pictured above. The target symbol is purple, so it might be a little hard to spot. But once it appears, the Thunder Manifestation has "locked on" you. After that, attack the boss to immediately get the Challenger: Series V achievement called Radio Silence.

To complete more Challenger: Series V Achievement, check out our guide on How to get the Moment of Destruction Achievement in Genshin Impact here on Pro Game Guides.