The first step to open the door with a combo (HU92)
The second step to dismantle the CAS computer (below the steering wheel) to increase the key experience in the past that: 14 years x3 for the CAS4 +, throw all need to disassemble the engine computer, open the front cover, remove the engine top panel, remove the engine computer, Guard board on the convenient note that the computer for the N20
Remove this CAS computer and engine computer, get back to the store to do the key
(1)
open the CAS computer, that this CPU is 5M48H. Open the VVDIprog
programmer, select the anti-theft BMW CAS4-5M48H backup read, according
to the wiring diagram to read the data and save (the picture shows the
demolition of the map method)
(2) to read the engine computer data, select the launch BMW F-N20 wiring according to the wiring diagram (personal recommendations using 6.0 flat knife eye) do not break through!
With tweezers clip off the figure on the iron
BMW N20 engine computer to read the data, the engine in the lower left corner to drill, connect BOOTM line
In
accordance with the wiring diagram connected to the line, in the
screwdriver on the welding BOOTM line, and then use a screwdriver to
withstand BOOTM point, read the data
Read the success and save, the lower left corner of the programmer status bar shows the frame number and ISN code
(3) read and save the CAS and engine computer data, open VVDI2 start writing key selection BMW
Select the file generation key CAS4 + 5M48H, click OK
Load CAS data
Key state and remote control frequency, etc., select the key 4 to generate the dealer key
Note that the following three options, we choose the second load the engine computer data, click Next
The device prompts to generate the key about 30 seconds, put a new key in the VVDI2 coil, click OK
Prompt to generate a key success, just insert or paste into the induction area to learn
Recovery read the data during the removal of the device loading
BMW
x3 sensor area on the right side of the steering wheel (put the
generated key to the sensor area, has been pressed until the start)
