In the previous article, we have introduced the MQB-RH850/V850 Adapter, for more detailed info please refer to Xhorse XDPGSOGL MQB-RH850/V850 Adapter Introduction.
In this post, we will show you how to use Xhorse Key Tool Plus and MQB-RH850/V850 adapter to read the R7F701401 dashboard.
Now we press “Immo programming” on the main screen of Key Tool Plus and find Volkswagen.
Select by type, choose “MQB instrument immo system” >> “Instrument-MQB48 (VDO/JCI-NEC35xx lock)”, then tap on “Start programming” to continue.
Check the statement, confirm that the device is connected to the network, and press OK.
Enter “Programmer reads files”>>”Read NEC35xx RH850 chip”>>”Wire bond”>>”R7F701401″.
Here you will see a connection diagram that shows us which components need to be removed.
After moving the components, we followed the connection diagram and soldered the cable.
Connect a thin conductor or enameled wire at the designated points, and then solder the remaining parts.
Fix with tape.
Now we have finished the soldering and next, we need to connect the adapter to Key Tool Plus.
Press “OK” to start reading and go on.
Please make sure the adapter and chip are in good connection.
After reading successfully, save the file.
Then tap on “Obtaining immo data” and load the chip file just read.
It will take a few minutes to calculate the IMMO data.
Now the calculation is successful, just save the IMMO data.
It can be used to generate dealer keys and learn keys.