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Advanced Programming

SW28 Lock50 HW04 OBD Tool JLR 2017 to 2024+

New RFA Programming (Locked BCM R8E2 + M8E2 Supported)

When the BCM is not locked, you can swap a New RFA and adapt it to work in the vehicle without needing a New or Virgin BCM using SW27. However, when the BCM is locked, you need to swap to a NEW RFA to erase old keys in both the RFA & BCM - and Lock50 lets you do this without changing the BCM.

View Compatible Models Get Support
HW04-B+
Required
15 Min
Avg Time
New RFA
Modules
2017+
Vehicles

How to Detect a Locked BCM

After swapping the RFA and updating Lock50 software, go to PEPS Options and run the "Replace RFA" command

BCM Not Locked

The vehicle will complete the Replace RFA process successfully without any errors

BCM Is Locked

Error messages: "2 Keys Required or Authentication Failed" or "Less than 2 Keys found"

Safe to Revert

If doing a spare key, you can swap back the Original RFA - the client's old key will still work and nothing is broken

3 Options for Locked RFA & Locked BCM

When you have a vehicle with both Locked RFA and Locked BCM, you have these options to make keys:

1

SW28 Function

Use the SW28 Paid function to bypass the locked BCM and still adapt a new RFA only - without needing a new BCM. Found in Special Functions.

Best when you need to erase lost keys
2

SW36 Duplicator

If the car has UWB, use the SW36 Paid Duplicator option to copy keys without changing RFA - even when BCM and RFA are locked. Faster method for new keys on Lock50 Keys.

Fastest option for UWB vehicles
3

SW30 Add OEM Keys

Use SW30 to add OEM Keys into the Locked RFA & BCM when you have 2 working keys to add the 3rd key - supply an OEM Key to your clients.

Best when client has 2 working keys
The SW28 Solution

Program New RFA Without Changing BCM

The SW28 function allows you to bypass locked BCM and adapt a new RFA - avoiding the need to swap or remove the BCM module

What SW28 Does

RFA Must Be Swapped

You MUST swap to a new RFA module when using SW28. This is required to erase old keys from the system.

BCM Never Needs Swapping

You NEVER need to swap the BCM - that's the whole advantage of SW28! Keep the original BCM in place.

For 2021+ cars which have been back to Dealerships for software updates, other tools cannot program keys without first putting a new BCM in the car. SW28 eliminates this requirement.

SW28 Solution:

  • Swap RFA ONLY - Avoid expensive and time-consuming BCM replacement
  • Program keys to the new RFA via OBD - no adapters needed
  • Erase lost keys and block emergency start on old keys
  • Works even when BCM is locked with mitigation updates

When to Use SW28 vs Other Options

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Use SW28

When you NEED to ERASE lost keys

  • Swap to new RFA
  • Block emergency start on old lost keys
  • Avoid changing BCM

Use SW36

Faster for making new keys

  • Key copy duplicator
  • No RFA change needed
  • Works with UWB vehicles
Learn about SW36

Use SW30

Add OEM keys to system

  • Requires 2 working keys
  • Add 3rd OEM key
  • EVA2 platform only
Learn about SW30

Supported BCM Types & Requirements

SW28 supports all models when RFA is locked and allows you to erase keys in the BCM to block emergency start on older lost keys at the same time.

Specifically Supports BCM Types:

L8B2 M8E2 R8E2 S8E2

Plus other BCM types - check compatibility

Remember: RFA Swap Required

  • Must swap to new RFA module

  • Never swap BCM - keep original in place

  • Works with BCM mitigation updates applied

Alternative: SW40 with C+ Package

If you have SW40 with C+ package, you can unlock the EVA2 RFA if you wish to erase or add keys without needing to swap the RFA.

C+ Advantage: Unlock locked RFA modules and manage keys without hardware replacement - the most advanced option available.

What You Need for SW28

New RFA Module

Required for this function

Lock50 HW04-B+

Required tool package

OBD Connection

Via OBD port only

SW28 License

One-time or anytime use

SW28 Licensing Options

One-Time Use License

Order a single-use license when you have a specific job. Requires activation before use.

Perfect for occasional use or testing the function

Anytime Use License

Order the license to use anytime yourself without requiring activation. Tied to your device serial number.

Best for regular use - no activation delays

Order SW28 License
SW28 Advanced Function

SW28 Solution for 21+ Vehicles

You need a new RFA to use this function for 21+ Cars which have been back to Dealerships for Software updates and cannot be programmed with other tools without first putting a new BCM in the Car. Lock50 allows you to avoid messing with BCM or having to remove it - and can program keys to a New RFA via OBD with HW04 Lock50 tools.

No BCM Swap Needed

When BCM mitigation update has been applied - you must swap to a new RFA, but BCM never needs swapping with SW28

Simpler Process

Adapt only new RFA without needing to remove the BCM and without swapping to any new ones

Erase Lost Keys

This function is only needed if you need to erase lost keys - otherwise use SW36 key copy or SW30 OEM key add options

SW28 Licence Available

You can order the Licence to do it yourself anytime for your device serial number. Supports all models when RFA is locked.

Lock50 SW28 RFA replacement special function when BCM is locked - also used to erase keys if RFA unlocked
SW28
Active
New RFA
BCM Locked
Verified
2017+
Models

OBD Connection

No module removal required

Automatic Backup

Original data preserved

Status Monitoring

Real-time progress tracking

Success Guarantee

Proven reliability

SW28 HW04-B Upgrade Software Licence

When RFA change does not work and a new BCM change is needed - this will let you program the keys without changing to a new BCM.

Supports All Models when RFA is Locked and allows you to erase keys in the BCM to block emergency start on the older lost keys at the same time.

Order Licence Contact Sales

Need Advanced RFA Programming?

Upgrade to HW04-B or higher for full capabilities with new RFA modules

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