Memory and weapon progression
Weapon Upgrade Components
Farm the exact component listed by an Access Key upgrade screen and apply it to a planned weapon improvement.
WHERE & HOW TO FARM
Weapon Upgrade Components
Access Key upgrade screen for the shortage, then Resource > Supply on a stage whose reward preview lists the exact component.
Before you go
- An Access Key is available for upgrade.
- The weapon upgrade screen shows a specific component shortage.
- The matching Resource stage is unlocked.
Farming steps
- Open the intended Access Key’s upgrade screen and identify the next upgrade target.
- Record the missing component’s exact name and amount shown by the interface.
- Open Resource > Supply and inspect stage reward previews for that component.
- Select the highest matching difficulty your team can clear reliably.
- Spend Serum on the confirmed stage and collect its results.
- Return to the weapon screen and verify the component count before applying the upgrade.
- Review the next upgrade step only after the current one is complete.
- Upgrade a weapon that belongs to a Construct you actively use before investing broadly across unused Keys.
- Check event stock as an alternative only when the live shop lists the same component by name.
Repeat, collect and use
Repeat the matching stage while the current upgrade step lacks components. Weapon upgrades are one step at a time; a later step can request a different item, so recheck before repeating.
Common mistakes
- Farming a component based on weapon rarity alone; use the exact shortage shown in the upgrade screen.
- Assuming every Supply stage has the needed component; inspect previews.
- Continuing to farm after the upgrade step is satisfied; check the next requirement first.
When to stop or switch
Stop when the intended weapon step is funded and applied, or when another required item becomes the remaining blocker.
Sources & fact checks
What you can get here
Open a guide to find other locations and see what the item is used for.