Hello fanatics,
I thought it would be helpful for people to exchange their experience with the Siemens MSS5x Flash Tool.
This way you can talk about operating system compatibility and functions, etc. and we keep the MS43 thread clean.
Please contribute some information about your tested hardware, that we can get it to work for everyone
Compatible Operating Systems:
Every x86 and x64 Windows should work. Make yure .NET 4.0 and the driver is installed
Requirements:
Registration process
FAQ:
Q: Where can I get it?
A: Look for the download in the first section on www.ms43wiki.com
Q: It asks for a registration key?
A2: Yes, that's true, just create your licence here: https://www.ms4x.net/licence/
Q: The flasher crashes after activation.
A: Most propably you need this FTDI chipset driver
Q: Is the tool compatible with my ECU?
A: It is compatible with Siemens MS41, MS42, MS43, MSS50 and MSS54.
Q: Can it do full 256 KByte / 512 KByte flash?
A: Yes, it can read and write both, partial and full file.
Q: Is bootmode required for flashing full files?
A: On MS41 you have to supply +12V to ECU pin 60 or when it has full round OBD plug it's OBD pin 18. On other supported ECUs bootmode is NOT required, even for full flash.
Q: Can it to MS41.0 to MS41.(1/2) conversion?
A: No, you need MS41 Flash Tool V1.05d for that task.
I thought it would be helpful for people to exchange their experience with the Siemens MSS5x Flash Tool.
This way you can talk about operating system compatibility and functions, etc. and we keep the MS43 thread clean.
Please contribute some information about your tested hardware, that we can get it to work for everyone
Compatible Operating Systems:
Every x86 and x64 Windows should work. Make yure .NET 4.0 and the driver is installed
Requirements:
- .NET Framework 4.0
- USB K-Line Adapter with FTDI chipset
Registration process

FAQ:
Q: Where can I get it?
A: Look for the download in the first section on www.ms43wiki.com
Q: It asks for a registration key?
A2: Yes, that's true, just create your licence here: https://www.ms4x.net/licence/
Q: The flasher crashes after activation.
A: Most propably you need this FTDI chipset driver
Q: Is the tool compatible with my ECU?
A: It is compatible with Siemens MS41, MS42, MS43, MSS50 and MSS54.
Q: Can it do full 256 KByte / 512 KByte flash?
A: Yes, it can read and write both, partial and full file.
Q: Is bootmode required for flashing full files?
A: On MS41 you have to supply +12V to ECU pin 60 or when it has full round OBD plug it's OBD pin 18. On other supported ECUs bootmode is NOT required, even for full flash.
Q: Can it to MS41.0 to MS41.(1/2) conversion?
A: No, you need MS41 Flash Tool V1.05d for that task.