I'm looking for the correct steps/software patches needed to get an MSR5500-100R working with a MC55A0 in OTG mode.  There are a number of patches available, and I'm not sure what is supposed to be used. On, the MC55A, I am running OEM version 02.41.003 (I started with a freshly clean-booted and blanked unit).  So far, about the best I can do is to get it working with "USB Host Mode".  To do that, I install SPR 18231 (msr5500_rev_0.2.CAB) on a fresh device.  And, then I have to change the USBConfig to "USB Host Mode".   If I put it in USB OTG Mode, I get "MSR3000_ERR_OPENFAILURE" when I run MSRSAMP2.  I've tried SPR18233_MSRMC55xx.reg after installing SPR_18231 (and warm booting), but this doesn't seem to help.  So, anyone know how to get this to work in USB OTG mode?