12/10/2019 12:07 PM | |
Joined: 6/1/2018 Last visit: 7/14/2024 Posts: 1 Rating: (0) |
Hello dear all! I have a fault-tolerant system with CPU 414-4HM14-0AB0 and one of the CPUs is newer with a higher version of firmware.The firmware version of older CPU is v4.5.3 and the newer one has v4.5.6 As I understood yet, downgrading the firmware is possible just to the previous version. So I should go through v4.5.6 to v4.5.5, then to 4.5.4 and finally 4.5.3. The problem is that there is no file or link for v4.5.4 FW!! here it is the link of v4.5.x firmwares for the CPU: https://support.industry.siemens.com/cs/ww/en/view/109474703 Can anyone explain the reason or at least another method to downgrade??? In addition (if it is needed) I can turn off both CPUs and unfortunately I don't have flash memory. Thanks in advance! |
Last edited by: The Helping Hand at: 12/10/2019 12:10:30Optimized link |
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12/10/2019 2:19 PM | |
Joined: 12/10/2018 Last visit: 6/27/2024 Posts: 109 Rating: (11) |
Hello dear Behifarid At first, why don't you upgrade old version CPU (4.5.3) to the newest version (4.5.6)????. Or upgrade both CPUs Firmware to V4.5.7. This is better and more rational. Next, Who has said: downgrading the firmware is possible just to the previous version ?????? (You can Upgrade/Downgrade CPU to any version that you want ) Anyway, if you want to downgrade Firmware, you can find all versions of firmware in the following link. https://support.industry.siemens.com/cs/at/de/view/109474703 Best regards. |
Last edited by: The Helping Hand at: 12/10/2019 14:21:58Optimized Link Last edited by: fariborz M at: 12/10/2019 14:22:33Last edited by: Jen_Moderator at: 12/11/2019 09:12:16Optimized link. |
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