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Professional Key Unlocking Guide

How to Unlock JLR Keys

Complete step-by-step guide to unlocking Jaguar and Land Rover smart keys using Lock50 HW04 reader. Essential for key programming and RF remote synchronization.

2-5

Minutes

HW04

Reader Required

2010+

Key Models

100%

Success Rate

Why Do JLR Keys Need to Be Unlocked?

Understanding the lock/unlock status is essential for successful key programming and RF remote functionality

Locked Keys

Locked keys have security encryption enabled and cannot be:

Read for key data extraction
Copied to create duplicate keys
Used for RF remote synchronization
Modified or reprogrammed

Unlocked Keys

Unlocked keys allow full access and can be:

Read for complete key data
Copied via OBD or adapters
Synced for RF remote buttons
Programmed to vehicles

When You Need to Unlock Keys

Fix Existing Key Remote Buttons

• Remote buttons stopped working on existing keys
• Keys are already programmed to the vehicle
• Key ID is in vehicle's RFA/KVM memory
• Need to write new RF sync data to locked keys

Key Programming & Data Access

• Programming new keys to vehicles
• Reading key data for diagnostics
• Creating duplicate keys from donor keys
• Extracting key information for repairs

Most Common Scenario: When existing keys stop working for remote functions, they're often locked. Lock50 checks if the key ID matches what's stored in the vehicle's RFA/KVM module. If it matches, unlocking the key allows Lock50 to write new RF remote sync data, fixing the remote buttons without creating new keys.

How to Unlock JLR Keys

Step-by-step guide using Lock50 HW04 reader for both PCF7953 and NCF29A1 smart keys

Required Equipment

Lock50 HW04 Reader Hardware

The essential tool for unlocking JLR smart keys

Lock50 HW04 Reader

Essential hardware for unlocking

Lock50 Software

Latest version installed

USB Connection

Stable computer connection

1

Unlocking PCF7953 Keys (2010-2021)

Standard smart keys for most JLR vehicles

Unlock Process Visual Guide

Follow the on-screen prompts in Lock50 software to unlock PEPS keys (PCF7953 and NCF29A1 chips) using the HW04 reader.

Lock50 hw04 with peps uwb keys on reader

Lock50 HW04 with PEPS Keys

Position the PEPS/UWB smart key directly on the Lock50 HW04 reader surface. Ensure proper contact between the key and reader for successful detection and unlock operations.

⚠️ Important: Follow Steps in Order!

Do NOT unlock keys first! Unlocking erases all key data. Follow this troubleshooting order to avoid permanently damaging client keys.

✅ Recommended Troubleshooting Order:

Step 1: Try remote sync on Lock50 reader first (if key is unlocked). This is the fastest method.
Step 2: If Step 1 doesn't work, use BCM Rolling Code Sync via OBD. This is safe and doesn't erase key data.
Step 3: Only if you have Package C or higher, consider unlocking keys. Lower packages (A/B) cannot use SW36 key copy to restore erased keys!

BCM Rolling Code Sync When Remote Keyless Not Working

Step 2: BCM Rolling Code Sync via OBD (Safe Method)

This method syncs the remote without unlocking or erasing key data. Use this before attempting to unlock keys.

⚠️ Package A & B Users: DO NOT UNLOCK KEYS!

If you're on Package A or B, you cannot use SW36 key copy duplicator to restore erased unlocked keys. You will be stuck with non-working keys! Only Package C and higher can safely unlock and restore keys.

1

Connect Lock50 HW04 Reader

Connect Lock50 HW04 reader to your computer via USB
Launch Lock50 software
Verify HW04 reader is detected and ready

2

Place Key on Reader

Position the PCF7953 smart key on the HW04 reader surface
Ensure proper contact between key and reader
Wait for software to detect the key

3

Read Key Status

Click "Read Key" button in Lock50 software
Software will display current lock status
Check if key shows as "Locked" or "Unlocked"

4

Execute Unlock Function

Click "Unlock Key" button in the software
Wait for unlock process to complete (typically 30-60 seconds)
Software will confirm successful unlock
Key is now unlocked and ready for programming or RF sync

Success!

Your PCF7953 key is now unlocked and can be used for key programming, RF remote sync, or key copying procedures.

Remote Sync Completed for Key on Lock50 HW04 Reader

Next Step: Remote Sync Completed

After unlocking, you can perform RF remote synchronization on the Lock50 reader. The image above shows a successfully completed remote sync on an unlocked key.

Important: When Lock50 detects that a key ID matches the vehicle's RFA/KVM memory, it writes new sync data to fix remote button functions. The key must be unlocked first to receive this sync data update.

2

Unlocking NCF29A1 Keys (2017-2025+)

Newer generation smart keys with advanced encryption

Same Process as PCF7953 Keys

The unlock process for NCF29A1 keys is identical to PCF7953 keys using the Lock50 HW04 reader. Follow the exact same 4 steps outlined above.

Key Differences to Note

Model Years

NCF29A1 keys are used in 2017 and newer JLR vehicles

Encryption

More advanced security, but same unlock procedure

Hardware

Requires HW13/HW14 readers for programming (but HW04 for unlocking)

Programming

Uses KVM/RFA adapters instead of OBD for key copy

Troubleshooting Common Issues

Key Not Detected

• Ensure key is properly positioned on HW04 reader
• Check USB connection is secure
• Try removing and replacing the key
• Restart Lock50 software if needed

Unlock Process Fails

• Verify you're using HW04 reader (not HW05, HW06, HW13, or HW14)
• Update Lock50 software to latest version
• Check that key battery has charge
• Try process again with key in different position

Wrong Reader Type

• HW04 is specifically required for unlocking keys
• HW05/HW06 are for programming PCF7953 keys (not unlocking)
• HW13/HW14 are for programming NCF29A1 keys (not unlocking)
• You must have HW04 reader to perform unlock function

Error: Key Cannot Be Learned via OBD

when see this mess key needs to be unlocked before can be learnt via obd or the RFA is not conencted back to normal and sill conencted via hw03c cables so obd add keys will not work till fixed

⚠️ When you see this error message...

This error indicates one of two problems:

1. Key is locked: The key needs to be unlocked before it can be learned via OBD. Follow the unlock steps above first.
2. RFA still connected via HW03C cables: The RFA (Remote Function Actuator) module is not connected back to normal position and is still connected via HW03C cables. OBD key learning will not work until the RFA is reconnected properly to the vehicle's BCM.

Solution: Either unlock the key first, or check that all RFA connections are restored to factory configuration before attempting OBD key programming.

What to Do After Unlocking

Once your JLR key is unlocked, you can proceed with various key programming operations

RF Remote Sync

Fix non-working remote buttons by performing rolling code synchronization with the vehicle's BCM module.

Learn RF Remote Fix

Key Programming (2 Types)

Type 1 - Key Copy: Clone existing keys onto HW05/HW06 or HW13/HW14 readers when KVM/RFA modules are locked.

Type 2 - Key Learning: When KVM/RFA are unlocked, buy used keys, unlock them with HW04, and learn them to vehicles with new IDs.

View Programming Guide

Fix Existing Keys

SW36 Key Copy function shown in Lock50 software

Unlock existing keys so Lock50 can write new RF remote sync data back to them. When the key ID matches the vehicle's RFA/KVM memory, sync data fixes the remote buttons.

RF Remote Fix Guide

Understanding Key Lock States After Programming

The lock/unlock state of keys after programming depends on which method you use:

Keys Stay UNLOCKED

When using Key Copy function:

Keys copied using SW36 or similar functions stay unlocked after the copy process
The ID remains unchanged during key copy
Keys can be immediately used for further operations

Keys Get LOCKED

When adding new key IDs to vehicle:

Keys learned with new IDs (when RFA unlocked or EVA2 locked) get automatically locked
Whenever you add a new key ID to the car, the key will be locked afterward
Keys must be unlocked again if you need to read/modify them

💡 Pro Tip: Reusing Keys

When RFA/KVM are unlocked, you can buy used keys from other vehicles, unlock those keys with Lock50 HW04, and then learn them back to different cars with new IDs. This allows you to reuse keys across multiple vehicles, but remember that after learning with a new ID, the key will be locked again.

KVM/RFA Module States & Key Compatibility

Understanding the difference between KVM (PCF7953 chip keys) and RFA (NCF29A1 chip keys) modules, and their locked/unlocked states is crucial for choosing the right programming method.

KVM Modules

Uses PCF7953 chip keys (2010-2021 vehicles)

Compatible with HW05 (433MHz) and HW06 (315MHz) Change ID keys
Used in older generation JLR vehicles

RFA Modules

Uses NCF29A1 chip keys (2017-2025+ vehicles)

Compatible with HW13 (433MHz) and HW14 (315MHz) Change ID keys
Used in newer generation JLR vehicles with advanced security
Common part numbers: JPLA, K8D2, M9R3, J9C3

When KVM/RFA is LOCKED

LOCKED KVM (PCF7953 Keys)

✓ What You CAN Do:

Key Copy via OBD with SW36 (C+ Packages): When KVM is locked, you can use SW36 key copy function to clone existing keys onto HW05 (433MHz) or HW06 (315MHz) Change ID keys. This requires Lock50 C package or higher (Master Kit).
Key Copy with HW03C: Clone existing key data onto HW05/HW06 keys using SW36 key copy duplicator with HW03C adapter

✗ Standard OBD Learning Not Supported:

When KVM is locked, you CANNOT use standard OBD key learning (A/B packages). Only SW36 key copy function works, which is available in C package or higher.

ℹ️ KVM Unlock Not Currently Supported: Lock50 does not currently support unlocking KVM modules. To erase keys from a locked KVM, you would need to make it virgin using other methods (not Lock50), then relearn keys.

LOCKED RFA (NCF29A1 Keys - JPLA, J9C3, K8D2, M9R3)

✓ What You CAN Do:

Key Copy with HW03C Only: Clone existing keys onto HW13 (433MHz) or HW14 (315MHz) keys using SW36 key copy function
Maintains Original ID: Copied keys keep the same ID as the source key

✗ OBD Programming Limitation:

OBD key programming will ONLY work if the RFA was already unlocked at some point. If it's never been unlocked, OBD methods will fail on locked RFA modules.

🎯 EVA2 RFA Exception - Special Workaround for Locked RFA

Even when RFA (EVA2 models) is locked, you can still add OEM keys using these methods:

Method 1: Two Key Method

If you have 2 working OEM keys, you can add additional OEM keys to locked EVA2 RFA modules via OBD. This bypasses the lock requirement.

Method 2: Service Mode

Use the Client's App Service Mode feature to enable adding OEM keys even when the EVA2 RFA is locked. This is a dealer-level function.

📌 Note: These methods only work with genuine OEM keys. Lock50 Change ID keys (HW13/HW14) still require the RFA to be unlocked or use SW36 key copy method.

Learn more about EVA2 RFA unlock

When KVM/RFA is UNLOCKED

What You CAN Do:

Add Any PCF7953 Keys (for KVM):
Use any 7953 chip keys including OEM keys, aftermarket keys, or used keys from other vehicles. Program them directly via OBD with new IDs.
Add Keys to RFA (2017+ vehicles):
For unlocked RFA modules, you can add OEM UWB keys (HW21-HW26) or OEM Non-UWB keys (HW15-HW16, HW19-HW20)
Use Cheaper Aftermarket Keys (with UWB disabled):
For 2017+ RFA types (JPLA, K8D2, M9R3, J9C3), you can use affordable HW17/HW18 Fixed ID Non-OEM keys, BUT UWB must be disabled first!
Reuse Keys: Buy used keys, unlock them with HW04, and program them with new IDs
Full Flexibility: Add spare keys, all keys lost scenarios, change IDs as needed

⚠️ Critical: Using Non-OEM Keys with 2017+ RFA

If you want to use cheaper HW17 (433MHz) or HW18 (315MHz) Fixed ID Non-OEM keys on 2017+ vehicles with RFA modules (JPLA, K8D2, M9R3, J9C3), you MUST disable UWB functionality first!

Why UWB Must Be Disabled:

• HW17/HW18 keys do NOT support UWB (Ultra-Wideband) technology
• UWB-enabled vehicles expect UWB keys with NCF29A1 chips
• Non-UWB keys will not work unless UWB is disabled in the vehicle configuration

✓ Solution: Use Lock50 to disable UWB in the vehicle's configuration before programming HW17/HW18 keys. Once UWB is disabled, these affordable aftermarket keys will work perfectly.

Quick Reference: Module State vs Key Options

Module State	Module Type	Key Options	Method
LOCKED	KVM (7953)	HW05/HW06 Change ID keys	SW36 Key Copy Only (C+ packages)
LOCKED	RFA (29A1)	HW13/HW14 Change ID keys only	SW36 Key Copy with HW03C
LOCKED	RFA EVA2 (29A1)	OEM keys (with 2 keys or Service Mode)	OBD (Special Exception)
UNLOCKED	KVM (7953)	Any 7953 keys (OEM, aftermarket, used)	OBD Direct Programming (A/B packages)
UNLOCKED	RFA (29A1) UWB	OEM UWB keys (HW21-26) or Non-UWB (HW15-16,19-20)	OBD or Adapter Programming
UNLOCKED	RFA (29A1) Non-UWB	HW17/HW18 (UWB disabled required!)	OBD after UWB disable

📝 Important Notes:

Locked KVM: Only SW36 key copy works (C+ packages). Standard OBD learning (A/B packages) requires unlocked KVM. Lock50 cannot unlock KVM modules.
Locked RFA: OBD only works if RFA was previously unlocked. Otherwise, only SW36 key copy works.
EVA2 Exception: Can add OEM keys to locked EVA2 RFA if you have 2 keys or use Service Mode.