I am trying to update a locked XO-1 to the latest stable release 10.1.2. I think I followed all the directions correctly. I tried to run the XO using the USB with the fs.zip and os852.zd files. I got an error message buffer@900000 :1: Image file is not a multiple of the NAND erase block size OLPC C2, 256 MiB memory installed, S/N SHC839003C2 OpenFirmware CL1 Q2E41 Q2E Use power button to power off Any suggestions what I should do? Thanks. Becky