@Oystein: From the ML archive, I see you have a close version match, does EFR works on your nanoBTS ?
A little more infos for reference: The two nanoBTS are both 1800 round model (non-edge). Both 139 but one is 139_ and the other is 139U. I can't see any visible difference in the PCBs of both. I found what I think is the jtag port to the ppc, I might try to dump the flash ... As far as I can tell, the only non-volatile storage are the 4 flash chips next to the MPC855. 4 chips of 1Mx16, that's 8Mo of firmware.
The one where EFR doesn't work: - Marking on the side: nanoBTS model 139_ - ipaccess-find infos: Location 2='BTS_NBT131G' Equipment Version='111_029_23' Software Version='120a002_v149b42d0'
The one where EFR works: - Marking on the side: nanoBTS model 139U - ipaccess-find infos: Location 2='BTS_NBT131G' Equipment Version='139_029_41' Software Version='120a352_v267b22d0'
Sylvain