Good afternoon, I apologize if an answer or another question like this has already been posted. 

I have a user with a Dell Latitude 5430 Rugged that’s showing Alert! Tpm device not detected. 
enabling TPM 2.0 just disables itself after I apply changes and exit. 

So far I’ve tried 

• Updating the bios to current (1.20.0)
• downgrading to 1.19.0
• disconnected the battery and power and held power button for 60+ seconds
• Restored bios to factory default
• TPM.msc shows compatible TMP cannot be found 
• attempted to download the 1.2 and 2.0 firmware from Dell just to be told it’s incompatible 
• get-tpm in powershell shows false on the first 6 lines
• ran windows updates/checked optional updates for tpm. None found. 
  
  
• checked in device manager and it doesn’t even have a security tab. 
  
  

is there anything I can try that I haven’t yet? This isn’t a major deal to me, but it’ll bug me if I don’t find a solution primarily because I’m curious. Thank you