How to Update BMW multi tool V7.0 ?
Open this window after connect to internet.You can see BMW multi tool latest software version, firmware version, dongle version. You can go to our website for further information. After succeeded update BMW multi tool firmware, must reconnect the hardware to computer.
1 Device Info: Get dongle and hardware SN and version.
2 Device Update: This function can update the dongle and device.
How to make BMW dealer key with BMW multi tool?
1 Choose CAS or EWS type.
2 Load the choose EEPROM file you will get the make dealer key window:
3 Choose key position and press "Make Dealer Key" button. Flow the given tips to prepare dealer key. After succeed you can save the new EEPROM dump file. For EWS1, EWS2, EWS3, EWS4, CAS1, CAS2, CAS3 type the prepared dealer key can start the engine directly. For some CA3+ type you need to write back the new dump file into car
4 CAS3 encrypt data, only can prepare dealer key with a working key data.
For more details, you can see BMW multi tool V2.3 English user manual.
How to use BMW multi tool to make keys for BMW EWS?
If you want to use BMW multi tool to make keys for BMW with EWS, you need to buy additionally CAS PLUS for BMW multi tool. CAS PLUG for BMW MULTI TOOL can be connected with the device via OBD2 port.
What cars models CAS PLUG for BMW MULTI TOOL can support?
With CAS PLUG for BMW MULTI TOOL, you can work on EWS, EWS 2, 7 Series CAS1/CAS2 plug and CAS3/CAS3+ plug. By using CAS Plug, you can connect CAN LINE manually, support 12V.
How to fix bmw multi tool V7.0 when error failed at the security access ?
add key obd;
cas3+ encrypt version -> no need to update CAS (no need for key cycling)
cas ISTAP4x version -> need to update cas (no need for key cycling)
lost key obd;
cas3+ encrypt version -> no need to update CAS (need to cycle key UPTO 16 times)
cas ISTAP4x version -> need to update CAS (need to cycle key UPTO 64 times)
add key dump method (lost or working key);
cas3+ encrypt version -> need to write back to CAS (needs either -working key / known ISN / ECU dump / or cycle UPTO 16 times)
cas ISTAP4x version -> no need to write back to cas (needs either -working key / known ISN / ECU dump / or cycle UPTO 64 times)
So the 64 cycle is really to save you having to downgrade the CAS but you still need to manually read the CAS for this option. For me this is still the best way as theres no way I would downgrade the CAS (unless you made it very clear what this meant to the client)
Check BMW Multi Tool Technical Support Files Attached: