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Re: IDXFFFFFFFF error downgrading from 6.60 to 6.20
Posted: Thu Mar 01, 2012 2:39 am
by cameraguy256
PsPsiR1 wrote:Set your CPU CLOCK GAME to 222/111 or Default to work.
I did that already and nothing has changed, it still crashes...
Re: IDXFFFFFFFF error downgrading from 6.60 to 6.20
Posted: Thu Mar 01, 2012 6:20 am
by stingray1059
i have a 0x00002A00 then i tried cronoswitch v5 then it gives me a idxfffffff error.
then i used 6.20 pre -downgrader. then it gives me some error messages but i think it was installed successfully.
then afterwards i used cronoswitch downgrader again the error idxffffff error is gone but there is now a error SGT90000001
Re: IDXFFFFFFFF error downgrading from 6.60 to 6.20
Posted: Thu Mar 01, 2012 7:01 am
by PsPsiR1
Did you use this
6.20Downgrader after using pre-downgrader [FIXED].
please try again.
Re: IDXFFFFFFFF error downgrading from 6.60 to 6.20
Posted: Wed Mar 07, 2012 10:14 pm
by lavkian
I can't get the sleep mode fix to work either.
I've tried with CPU CLOCK GAME on 222/111 and Default and my PSP crashes either way after downgrading to 6.20 on TA-095v2 motherboard...
Re: IDXFFFFFFFF error downgrading from 6.60 to 6.20
Posted: Wed Mar 28, 2012 9:49 am
by stingray1059
the sleep mode fix sometimes work then sometimes it does not work especially when running ps1 games.
can i revert it back to 6.60 official?
Re: IDXFFFFFFFF error downgrading from 6.60 to 6.20
Posted: Mon Feb 17, 2014 8:36 pm
by jcpantola
thank you for the help PsPsiR1. it worked for me. this should be made stickied.
Re: IDXFFFFFFFF error downgrading from 6.60 to 6.20
Posted: Sat Jul 12, 2014 4:01 am
by chronoss
PsPsiR1 wrote:cameraguy256 wrote:
Hmm , I have the same issue, and the file that you gave did not help, the error still persists... :\
Use this.
PSPident 0.75
to check you FUSE CFG. if it is 0x00002A00
you can downgrader using this
6.20 Downgrader
and If your FuseCFG 0×00003300, 0x00003B00 or other
must use this
6.20 Pre-downgrader before the 6.20 downgrader
here's your OFW
Firmware 6.20
and this is the
6.20 Sleepfix Plugin to fix your sleep mode bug.
goodluck!
I have the same problem but the X does not work to start the Pre-6.20 downgrade

IDXFFFFFFFF error downgrading from 6.60 to 6.20
Posted: Wed Aug 30, 2017 2:49 pm
by IshiPT
Could anyone please reupload the 6.20 pre-downgrader please ?
how should i use it ?
Thanks
Re: IDXFFFFFFFF error downgrading from 6.60 to 6.20
Posted: Wed Aug 30, 2017 9:30 pm
by Butcher
http://psp.scenebeta.com/noticia/pre-downgrader-fix
Use translate google to translate to English and need no email check registration .