PCF7941 Unlock, used remote key unlock, which tool OK?

Which tool can unlock or renew a second-hand used remote key, to unlock PCF7941 or other remote keys like Toyota Chrysler? I know some expensive tools maybe do it, but I need it within my budget, please!


To answer these kind of "Remote key unlock" questions which came up recently, uobdii.com engineers summarize a recommended tool list for you. Hope it helps!

Which tool to unlock PCF7941?

1. Xhorse VVDI PROG Programmer

Not only you can use VVDI PROG to read, write, unlock PCF7941 chip key, but also many other chips are supported like PCF7953, PCF7937...









Already tested:

Opel Astra H PCF7941reset OK

Opel Insignia PCF7937 reset OK

BMW F series PCF7953 reset OK

Updating...

Before VVDI PROG unlock PCFxx chip, chip status is "Locked".






After VVDI PROG unlock PCFxx chip, chip status is "Unlocked".






Note: This function need additional adapter: PCF79XX Adapter for VVDI PROG

Check this to know more:

http://www.uobdii.com/wholesale/pcf79xx-adapter-for-vvdi-prog.html

2. Orange 5 Programmer can unlock PCF7941 as well, but only for Chrysler, other car brands maybe not work.

Orange 5 can restore Chrysler remote key PCF7941 to factory settings.

Note: The PCF7941 adapter needed is already in this full package.

http://www.uobdii.com/wholesale/oem-orange5-professional-programming-device.html



Other remote unlock tips and tool recommended:
New tool VVDI Key Tool support renew parts of NXP keyless go keys & normal keys.

It will soon be available at uobdii.com! Pre-order VVDI Key Tool price $249.99

VVDI MB Tool: How to program Mercedes BGA key ML250 W166?

Are you searching for a full guide for VVDI MB Tool Mercedes BGA key programming?
Below you will know: How to program a new BGA key for Mercedes ML250 W166 by VVDI MB Tool step by step!

All you need:
A Mercedes new BGA key blank
Xhorse VVDI MB BAG Tool or VVDI MB Tool with VVDI MB Tool Power Adapter (Save much time for data acquisition)

Step 1
Connect VVDI MB Tool Mercedes key programmer with car via OBD line.
Open VVDI MB Tool software, go to "EIS Tools", choose chassis "W166,197,212,218,246" then click "Read EIS data".

After reading complete, click "Save EIS data". (Save both the bin file and the HC05 format)

Step 2
Go to "Password Calculation", select chassis "W166,197,212,218,246" then click "Data Acquisition".

Follow the instruction:
Insert the original working key into car EIS then press "OK".
Insert the original working key into VVDI MB Tool IR reader (the coil) then press "OK".
Then wait about 5 minutes.
Insert the key into car EIS and wait 30 seconds.
Insert the key back into IR reader then press "OK".
After that, save data file.

Step 3
Click "Upload Data" and choose the data file to open.

Upload success, wait 1 minute to finish.
Check "Auto reflash" and "Stop acquisite after success" boxes.
Click "Query result" then it calculate the key password, click "Copy".

Step 4
Back to "EIS Tools" and click "Read EIS data" again.
Paste the key password.

Click "Save EIS data" and choose to overwrite the original EIS file.

Step 5
Go to "Prepare Key File", click "Load EIS file" and load the new EIS file with key password.
On the Step 2 area, uncheck the "v041" and "v011" boxes.
Click "Prepare key file".

After that, select position to save the key file.
Then it will prepare all keys and complete.

Step 6
Go to "Read Write Key".
Put the new blank Mercedes BGA key into VVDI MB Tool IR reader (the coil) and click "Identification key".
You can see the key status is blank and unused.

Click "Load key file" and select the key 3 bin file to open. (Since the key 1 and key 2 are already used)

Click "Write" to start write new key.

Step 7
After writing success, click "Identification key" to check the new key status.
New Mercedes BGA key status 04FC, key number turn to 3.

Now the last thing is to synchronize the new key to car.
Insert the new key to turn on car ignition.
Key being initialized, wait the process complete.

VVDI MB Tool successfully program Mercedes W166 BAG key! New key remote control OK!

Xhorse CGW adapter for W164/251 or W169,211 and 245 EZS type

Tested now Xhorse CGW adapter for connecting EZS/EIS from W164/251 or W169,245 and 211 type on the bench
working like charm
only need wait some seconds, because VVDI MB unit test about what EZS/EIS type is connected....take 5-15 secs time, after reading success.

VVDI MB Tool Power Adapter Tested Review: Work Like a charm

REAL review by a trusted experienced professional at forum:
Tested it's true VVDI MB Tool Power Adapter can shorten W204 W207 W216 W164 all key lost data acquisition 2.5 h to 18 mins! Check pictures below!

VVDI MB Tool Power Adapter Tested Review:
Tested this new Xhorse VVDI MB BGA tool POWER Adapter for faster reading data acquisition in case Mercedes W204 W207 W216 W164 ALL KEY LOST...
Working like charm!
By W164/251/221/216 from 2009 and up:
NO more need so much times insert-remove-insert-remove IR adapter to and from EIS. It's a great convenience for me!
By W204/207:
The data acquisition time shorted from 2.5 hours before to about 18-24 minutes now.
Really much time saved and time is money!

In a word, I would recommend to get this useful VVDI MB BGA tool POWER Adapter if you often need to program Benz keys and deal with anything concerned.

Who did this test and review?
An experienced Mercedes professional daxxer newly posted his review on DK forum.
Big thanks to daxxer! He let us know this new adapter better!

Bundle sale: VVDI MB BGA TooL Plus Power Adapter for Data Acquisition

Bundle sale:

VVDI MB BGA TooL Plus Power Adapter, $1,875 free shipping worldwide

VVDI MB BGA Tool for sale: $1,775

VVDI MB Tool Power Adapter for sale: $130

In total: $1905

So, save $30usd

Why buy VVDI MB BGA TooL Plus Power Adapter for Data Acquisition together

VVDI MB Tool Power Adapter features:

1.VVDI MB Tool power adapter only need 18 minutes to data acquisition for W204, W207 all key lost; without this adapter will cost 150 minutes for data acquisition, save much time nearly 2 hours

2. VVDI MB Tool power adapter for W216,W164 2009- all key lost data acquisition, no need to replug IR adapter many times, without this adapter need to replug IR adapter 500 times

3. VVDI MB Tool power adapter support gateway emulation function,

without real gateway you can use this adapter directly OBD communication with W164,164 2009-,W209,W211 (require special connection cables)

4. VVDI MB Tool power adapter will keep updating more features.

5. VVDI MB Tool power adapter contains all the features of Xhorse W164 Gateway Adapter for Mercedes, can totally replace it.

How to connect & use VVDI MB Tool Power Adapter:

 

YouTube Video:

<iframe width="560" height="315" src="https://www.youtube.com/embed/Hez3KesIFnk"

frameborder="0" allowfullscreen></iframe> 

Xhorse VVDI MB BGA tool Functions:

1. Support BE key, read password and prepare new key via IR.

2. NEC V051,V057 support on board get password

3. All NEC keys support on board write and erase

4. Password calculate: support BGA keys, NEC keys (include 51,57version)etc.,work fast.

5. Support renew EIS and ELV

6. Support write EIS and ELV

7. Support online generate key file

8. Unlock ELV function will be released soon.

9. Renew other control modules function will support soon

It Supports Password Calculator Function. Each time will cost 35USD.

Details here: http://www.uobdii.com/wholesale/xhorse-vvdi-mb-bga-tool.html  

BGA TOOL Video on YouTube:

VVDI Benz read EIS for w166 w197 w204 w218 w246 Video:

https://www.youtube.com/watch?v=Q1pfc2xUXWI 

How to do 212 AL KEY LOST with VVDI MB BGA Tool:

https://www.youtube.com/watch?v=Y4RTBj0JBcM 

How to use VVDI MB TOOL to calculate Mercedes BGA key password:

https://www.youtube.com/watch?v=160hJXiyLQ4 

Steps to add Benz bga key with Xhorse VVDI MB TOOL key programmer:

https://www.youtube.com/watch?v=Rq21U67XNOQ 

How to Update Xhorse VVDI MB Tool:

http://www.uobdii.com/service/how-to-update-xhorse-vvdi-mb-tool-6757.html 

VVDI MB BGA tool procedure, adapters, diagram, feedback, faq- all include:

http://blog.uobdii.com/xhorse-vvdi-mb-bga-tool-steps-adapter-diagram-feedback-faq-all-info-here/