Firmware Sets Explained: List and How to Transfer
★ 6 SHiFT Codes as of September 2025
☆ Black Market Location
★ Elemental Weakness Chart
☆ Legendary Weapons
★ Builds: Vex | Amon | Rafa | Harlowe
☆ How to Respec Skill Tree
This is a guide about Firmware set bonuses in Borderlands 4. Learn the mechanics of Firmware, how to transfer and how to farm Firmware, and see a list of all Firmware set bonuses by continuing below!
List of Contents
Firmware Explained
Provides Minor to Major Bonuses
Firmware set bonuses can provide minor to major bonuses depending on the number of equipment that share the same firmware. To maximize a firmware's effect, three equipment with the same bonus must be equipped on your character.
Sourced From Equipment
Firmware set bonuses will only appear for equipment. These include Repkits, Ordnance, Class Mods, Shields, and Enhancements. If you're looking to maximize set bonuses, you can equip a 3 piece bonus and a 2 piece bonus at the same time.
Weapons Do Not Have Firmware
Firmware set bonuses will not appear on weapons and are exclusive to the equipment mentioned above.
How to Transfer Firmware
Finish the First UVHM Mission
To unlock the Transfer Machine, you must first complete all main missions. After this, 4 missions that will unlock the Ultimate Vault Hunter Mode will be given to you. Completing the first out of the four missions will unlock the Transfer Machine, allowing you to transfer set bonuses.
What is Ultimate Vault Hunter?
Head to a Transfer Machine
The Transfer Machine can be found in all faction towns and in the Sanctuary where Amara resides. To complete the transfer process, you will have to pay 60,000 cash and 80 Eridium.
Firmware Transfer Guidelines
Firmware Can Only be Transferred to the Same Item Type
You can only transfer firmware to the same item type. This means that you can only transfer from Shield to Shield, Ordnance to Ordnance, Repkit to Repkit, and so on.
Original Item Will be Destroyed
If you're planning to transfer a firmware from your legendary shield, take note that this shield will be destroyed in the process.
Transferred Firmware Will Permanently Remain on the New Item
If you've transferred a firmware to a different item, this firmware will stay on that item permanently. Try to transfer set bonuses on a legendary item that compliments your build to avoid having problems!
How to Farm Firmware
Farm Drill Sites
Since items have a random chance to be accompanied with a set bonus, the best way to obtain these items would be to farm a location with sheer amounts of loot.
Drill Sites contain a lot of badass enemies that give greater amounts of loot along with multiple bosses that will further increase the loot quantity that you can get.
All Ripper Drill Site Locations
Look for a Distinct Glow While Looting
Items that emit a distinct glow contains a random firmware set bonus. Take note that you have to be near lootable items to see this distinct glow!
List of Firmware
| Set Bonus | 1 pc | 2 pc | 3 pc |
|---|---|---|---|
| Action Fist | Melee Damage is increased by 15% | Action Skill Damage is increased by 10% | On Melee kill, Action Skill Damage is increased by 25% for 8s |
| Airstrike | Splash Radius is increased by 20% | Splash Damage is increased by 20% | On kill, drop a missile strike on nearby enemies |
| Atlas EX | Gun Mode Switch Speed is increased by 20% | Gun Damage is increased by 10% while an Atlas Target Lock is active | When killing an Atlas Target Locked enemy, automatically Target Lock another nearby enemy |
| Atlas Infinum | Gun Fire Rate is increased by 5% while an Atlas Target Lock is active | Guns with Atlas-licensed parts gain 10% Damage | Atlas Target Locks are infinite, unless you swap Guns |
| Baker | Shield Capacity is increased by 10% | Repkit Cooldown Duration is reduced by 15% | Maximum Health is increased by 25% |
| Bullets To Spare | Fire Rate is increased by 5% | Gun Magazine Size is increased by 20% | Gun Fire Rate is increased by 50% of Gun Magazine Size |
| Daed-dy O' | Gun Mode Switch Speed is increased by 25% | Gun Magazine Size is increased by 15% | On Mode Switch, grants 20% Damage and 20% Fire Rate for 5s |
| Deadeye | Gun Accuracy is increased by 30% | Gun Critical Hit Damage is increased by 25% | Every Critical Hit grants 15% Critical Damage per Stack (5 max stacks) for 10s |
| Gadget Ahoy | Ordnance Cooldown Duration is reduced by 15% | Ordnance Damage is increased by 20% | Ordnance Kills grant 20% Damage for 15s |
| Get Throwin | Ordnance Damage is increased by 10% | Splash Radius is increased by 20% | Grenades and Tediore Thrown Guns have a 50% chance to spawn homing Missiles that home in on nearby enemies |
| God Killer | Damage Dealt to Badass enemies is increased by 10% | Damage Taken from Badass enemies is reduced by 10% | On killing a Badass Enemy, Damage Dealt is increased by 20% for 60s |
| GOOJFC | Action Skill Cooldown Rate is increased by 10% | Action Skill Damage is increased by 15% | Action Skill Cooldown Rate is increased by an additional 20% |
| Heating Up | Gun Reload Speed is increased by 20% | Amount of Overheated shots before breaking is increased by 50% with CoV-Licensed Gun Parts | Gun Damage is increased by 25% while Overheating with CoV-Licensed Gun Parts |
| High Caliber | Projectile Speed is increased by 25% | Gun Damage is increased by 10% | Bullets Pierce Enemies |
| Jacked | Zoom In Speed is increased by 20% | Hyperion Gun Shield Capacity is increased by 25% | Hyperion Gun Shields have a 30% chance to Ricochet Projectiles back to the enemy |
| Lifeblood | Repkit Healing is increased by 10% | Lifesteal is increased by 5% | On kill, regenerate 10% of Maximum Health |
| Oscar Mike | Gun Reload Speed is increased by 10% | Gun Damage is increased by up to 20% based on the emptiness of your Gun's Magazine | After Reloading, Gun Fire Rate is increased by 30% for 4s |
| Reel Big Fist | Melee Damage is increased by 15% | Melee Damage is increased by an additional 25% | Melee Kills trigger a Nova explosion for 200% Melee Damage |
| Risky Boots | When Health is less than 35%, Damage Taken is reduced by 30% | When Health is less than 35%, Movement Speed is increased by 35% | When Health is less than 35%, Damage Dealt is increased by 100% and Lifesteal is increased by 5% |
| Rubberband Man | Damage Reduction is increased by 5% | Lifesteal is increased by 5% | Bonuses granted by this Firmware are doubled |
| Trickshot | Gun Reload Speed is increased by 5% | Gun Critical Hit Damage is increased by 10% | Critical Hits have a 50% chance to refill 1 Ammo to the currently equipped Gun's Magazine |
Related Guides
Borderlands 4 Walkthrough Wiki
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