All Working Codes — July 2026 (Update 4)

Every Brainblast a Lucky Block code active after Update 4 in July 2026, explained. This guide is more than a list — it walks through what each reward does, the order you should redeem them, and how to spend Boost Potions so they pay for themselves within an hour.

The Three Live Codes (Update 4)

Code	Reward	Why It Matters
UPDATE4	1 Exclusive Lucky Block	Best chance at a Secret or higher pull.
LETSGOGUYS	Free Boost Potions	Covers your first 2-3 hours of training.
5MVISITS	Free Potions + 1 Exclusive Lucky Block	Milestone double dip — stack before opening.

The previous Update 3 pool (UPDATE3, ILOVEYALL, DONTEXPLOIT) is expired. See the Codes hub for the full expired table.

How to Redeem

1. Open Brainblast a Lucky Block and join a server.
2. Tap the Shop button on the left side of the screen.
3. Scroll down inside the Shop menu to the Codes section.
4. Type the code exactly as shown — capitals matter (5MVISITS, not 5mvisits with spaces).
5. Hit Redeem. The reward lands in your inventory.

How to Spend the Rewards

• Open Exclusive Lucky Blocks after a short Brain Power push. Higher power means a better rarity pool when you open.
• Use Boost Potions before training. Activate them on your best affordable weight and tap every x2 boost.
• Redeem all three before Rebirth. Rewards persist across Rebirths, so free potions still help the rebuild.

What If a Code Does Not Work?

• Exact capitalization, no spaces.
• Confirm the code is still on the live list — expired Update 3 codes always fail.
• Restart the Roblox client if a brand-new code fails once (15–30 minute rollout lag).

Related Pages

• Codes hub
• Update 4 notes
• Boost Potions guide
• Getting Started