I applied 4.31.7 CFW to a K01 and it seemed fine rebooted two times. I then took the 80GB HDD out and put in a 1TB virgin HDD. I got a black screen prompting me to install the file system I followed the instructions and the machine went to a solid blue screen. after about four hour i got impatient and powered the machine down.
It would not boot so I went into recovery mode and used the system restore option and it formatted the HDD asked for the firmware on a USB stick and after a minute or two went to the same solid blue screen.
I have allowed it to stay in that state for about 12 hours, it is doing something because one in a while the HDD light will flash for a few seconds & the USB stick is flashing very very slowly. Will this system come out of this state or does it need to be reflashed by a pro?
Yes. and it does the same thing. at this point i'm thinking of trying to force the OFW 4.31 onto the machine and pay someone to downgrade for me. I have never had such a bad experience with a HDD swap. I own 3 PS3s and this one was bought to mod. I didn't think a HDD swap could cause so much trouble.
Yeah some CFW out there cannot be re-installed when swapping the HDD, like the earlier Rogero 4.xx CFWs. It seems like SGK CFW has this problem as well. That's why you should only trust Rebug with CFW.
Before you try forcing OFW 4.31, try putting Rebug's 999 downgrader on the stick when it asks you to install the file system and see if that installs.
Verify the md5 hash after you download, it should give you 06aa0e07af7ead6e7e4bddf18ea3281f
Do you know if you're QA'd? If you know you're QA'd, you can try putting Rebug's 4.30.2 on the stick when it asks you to install the system software and see if this works before you try the 999 Downgrader.
Here's a link to Rebug's 4.30.2: scmods.com/rebug/firmware/REBUG_4.30.2_REX_PS3UPDAT.PUP