text: <s>[INST] PowerFlex 40P Downgrade Summary: downgrade from 3.01 to 2.01Hello, we want to downgrade a drive PowerFlex 40P from Firmware 3.01 to 2.01. Our machines are using drives with 2.01. Last Time a 40P was defect we installed a drive with 3.01. After that we had massive problems in cause of the mismatch from firmware. We tried to disable Keying-> didn't work. We are using ControlFlash. Is it possible to downgrade? [/INST] According to this knowledgebase article: https://rockwellautomation.custhelp.com/app/answers/detail/a_id/42454/page/1 Users like us cannot change the firmware of Powerflex 40P drives. You have to send the drive back to Rockwell to have it changed, or hire Rockwell to come on site to do it for you. Sorry, you're out of luck there. You're going to have to figure out ways around the changes caused by the firmware. What processor is choking on the changed firmware? \\n </s>