How VVDI PROG Unlock and Write Dump to PCF7937 Key?

 

In this article we are going to reset a PCF7937 key using VVDI PROG Software.

How Vvdi Prog Unlock And Write Dump To Pcf7937 Key 0

Original key is PCF7937 and locked in VVDI2 Software.

How Vvdi Prog Unlock And Write Dump To Pcf7937 Key 1

Direct connect VVDI PROG to key chip using PCF79XX Adapter.

How Vvdi Prog Unlock And Write Dump To Pcf7937 Key 2

Select 2-MCU>>NXP-PCF79XX>>PCF7941_IN-CIRCUIT

Read Chip.

Chip is encrypted.

How Vvdi Prog Unlock And Write Dump To Pcf7937 Key 3

Click "Reset Protect" to unlock data.

How Vvdi Prog Unlock And Write Dump To Pcf7937 Key 4

Read again.

How Vvdi Prog Unlock And Write Dump To Pcf7937 Key 5

Load new EEPROM data.

How Vvdi Prog Unlock And Write Dump To Pcf7937 Key 6

Set protect again.

How Vvdi Prog Unlock And Write Dump To Pcf7937 Key 7

Done! Key is unlocked.

How Vvdi Prog Unlock And Write Dump To Pcf7937 Key 8

http://blog.xhorsevvdi.com/how-vvdi-prog-unlock-and-write-dump-to-pcf7937-key/

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