Locking a mod prevents you from accidentally selling it. Find the mod in your inventory or on the unit it’s equipped on and tap on it to examine it. If you see a closed padlock symbol, you need to unlock it by tapping on the locked padlock icon before you can sell it.

You may also have set up filters that prevent you from seeing a mod you want to sell. Tap the Filter button to check which filters are active.

We recommend you keep the Only Unassigned Mods and the Only Mods Not In Loadouts boxes checked to prevent accidental sales.

It’s safer to remove a mod from a loadout from a unit before selling it than to uncheck those filter boxes.

If you’re looking to clean out your Mod inventory, tap the Sell button, and Sort by rarity. This will allow you to easily see and sell mods that have a lower rarity (dot level).