I have this CompactLogix L18-ERM-BB1B with version 20.001.36 and I am not able to upload or download to it. Logix5000 tells me the offline version file is not compatible with the controller revision. So I try ControlFlash to bring it up to 20.12 or 21.11 and it fails telling me it received an unknown error code. Here's the error in the log file: 12/17/14 14:22:24 [FAILURE] Transfer: Error #11001: Unknown General Status error code received. GS=0x1E 12/17/14 14:22:24 [FAILURE] Transfer: File = C:\Program Files (x86)\ControlFLASH\0001\000E\009B\PN-156514.der, Block = 1.
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