Delphi Ds150e Firmware Update Failed May 2026

If you can’t recover it via the USB boot pins, the FTDI chip (or the STM32) might actually be fried. At that point, buy a new one—they cost less than a pizza these days.

We all know the feeling. You plug in your trusty (or cheap, Chinese clone) Delphi DS150E, fire up the software, and that little pop-up appears: “New firmware available.” delphi ds150e firmware update failed

Don’t panic. I just went through this, and I managed to resurrect my DS150E from the dead. Here is exactly what happened and how I fixed it. Let’s be honest: 99% of the DS150E units out there are clones (Chinese copies). If you bought yours for under $150, it’s a clone. If you can’t recover it via the USB