Unable to update to any firmware

[sakuraa]

I recently tried to update to 4.86 Rebug LE from 4.84.2 Rebug D-REX (I'm not sure if this is where the mistake lies, I was told to install this so just did) and I got an error (80029CCA). I attempted other updates (4.86 ofw, 4.84.2 rex, 3.55.4 rebug) to no avail. Does anyone have any possible fixes? Thanks in advance!

 

[sakuraa]

Please help!

 

[joekait]

convert back to cex using rebug toolbox and then update to 4.86 rebug lite from xmb