I have a white one and had no problem doing the upgrade. However, the black one may be different hardware and require a different firmware. I have a Koboroot.tgz file for 1.9 at 60,748,205 bytes that I used to resurrect a broken unit (locked in initial load as yours now is) and I have a Kobroot.tgz.20.tgz at 62,043,413 that I could have used to upgrade my white unit later. I use the SD card approach and it went well. I may have done the upgrade from the Internet instead of the second file. I really can't remember for sure.
Last edited by DaleDe; 06-02-2012 at 07:12 PM.
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