How to Unlock Endministrator’s Level 40 Cap in Arknights Endfield

What to know

• You’re hard-capped at level 20 until you complete Promotion I, which raises Endministrator’s cap to level 40.
• Promotion I commonly requires Protodisks, Pink Bolete, and T-Creds (currency).
• Protodisks are mainly farmed from promotion-focused combat content (Protocol Space: Promotions) and sometimes from exchange shops depending on your available currencies.
• Pink Bolete comes from open-world gathering nodes in The Hub and typically respawns on a real-time timer, so timing matters.

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If you’ve hit level 20 and the game won’t let you go higher, you’re not missing EXP—you’re missing the promotion. The goal is to farm the exact materials for Promotion I, trigger the promotion, then continue leveling as normal up to 40.

Promotion I requirements checklist (level 20 to unlock the level 40 cap)

The typical Promotion I requirements you’ll want ready before opening the promotion screen are:

Promotion goal	Result	Items you usually need
Promotion I at level 20	Raises Endministrator’s level cap to 40	Protodisks x8, Pink Bolete x3, T-Creds x1,600

Notes:

• If your numbers differ slightly, trust your in-game promotion screen (some builds/versions can vary).
• The currency requirement is usually the easiest part; the gathered and farmed materials are the usual blockers.

What “promote to level 40” actually means in Endfield

In Arknights: Endfield, “promoting to level 40” usually refers to unlocking the level 40 cap (not instantly jumping to 40). You level Endministrator to 20 first, then you promote, and only then can you gain levels up to 40.

This is why you’ll often see players say they’re “stuck at 20”—that’s the intended progression gate.

Where to farm Protodisks quickly

Protodisks are the “promotion material” you’re expected to farm through repeatable combat content.

Common efficient sources:

• Protocol Space: Promotions: This is typically the most direct farming loop for promotion mats early on.
• Exchange shops (when available): Some exchanges may let you trade certain currencies/tokens for Protodisks, which can be helpful if you already have surplus.

Practical tips:

• If you’re short by only 1–2 Protodisks, it’s still usually faster to run the promotion farm content than to hunt for alternate sources.
• If stamina/entries are limited, plan a couple of runs daily until you hit your target total.

Where to get Pink Bolete (and why respawns slow you down)

Pink Bolete is a gathered resource tied to open-world nodes.

What to know:

• It’s typically collected from “Rare Growth” gathering nodes in The Hub.
• These nodes often respawn on a real-time schedule (commonly around 24 hours), so you can’t always brute-force farm it in one session if you’ve already harvested recently.

How to avoid getting stuck:

• The moment you know you’ll need a promotion soon, start grabbing Pink Bolete whenever you pass through The Hub.
• If you need multiple units and the nodes are empty, come back later rather than wasting time circling.

How to earn T-Creds fast without grinding aimlessly

T-Creds are the basic currency cost attached to many upgrades, including promotions.

Reliable ways to build them up:

• Clear Daily Missions consistently.
• Finish side objectives during exploration instead of rushing only the main route.
• Claim rewards from activities you’re already doing to farm other materials (this often stacks naturally).

In practice, if you are only missing T-Creds, a short burst of dailies and quest clears usually fixes it.

How to promote Endministrator to level 40 (detailed step-by-step)

Step 1: Get Endministrator to level 20

Use your normal leveling loop (combat, missions, EXP items) until Endministrator reaches level 20. If the level stops increasing at 20, that’s expected.

Step 2: Open Endministrator’s promotion screen and confirm the exact materials

Before farming, check the promotion UI so you’re working toward the exact item names and quantities in your current version of the game.

Step 3: Farm Protodisks from promotion-focused content

Queue into Protocol Space: Promotions (or the equivalent promotion material activity in your build) and run it until you hit your required Protodisk count.

Efficiency checklist:

• Run the highest difficulty you can clear consistently.
• If auto/quick-clear is available, use it to save time.
• Don’t spend rare exchange currencies unless you’re sure you won’t need them for other progression.

Step 4: Gather Pink Bolete in The Hub (Rare Growth nodes)

Head to The Hub and check Rare Growth gathering nodes for Pink Bolete.

If you can’t find enough:

• You may have already harvested the nodes recently.
• Wait for the real-time respawn window, then check again.

Step 5: Top up T-Creds through dailies and quick quest clears

If you’re short on T-Creds:

• Do your dailies first (fastest “guaranteed” income).
• Clear short side quests or objectives that don’t require deep travel.

Step 6: Perform Promotion I

Once you have all materials and currency, confirm Promotion I in Endministrator’s promotion menu. This is the moment the level cap increases.

Step 7: Level Endministrator from 20 to 40

After promotion, go back to leveling and spend EXP items if you want to push quickly. The cap should now be 40, so you’ll see levels start increasing again.

Troubleshooting if you still can’t reach level 40

Here are the most common reasons you can’t progress even after “doing everything”:

• Still capped at 20: Promotion I didn’t complete (materials missing, not confirmed, or you upgraded something else by mistake).
• Missing Pink Bolete: The gather nodes are empty because they’re on a real-time respawn; you’ll need to return later.
• Missing Protodisks: You may be farming the wrong Protocol Space category; make sure it’s the one tied to promotions.
• Not enough T-Creds: Clear dailies and side objectives; currency usually isn’t the long pole unless you’ve upgraded many systems at once.

Unlocking the level 40 cap without wasting time

To “promote Endministrator to level 40,” you’re really unlocking the level 40 cap by promoting at level 20. Farm Protodisks in promotion content, gather Pink Bolete from The Hub’s rare nodes, pay the T-Cred cost, then keep leveling normally to 40.