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I used Rebug 999 3.55 Downgrader to create the dump & get the key.

My Question is can I now goto 4.46-4.53 Rex or D-Rex firmwares & add both these Nand Dumps after I rename them. on the root of USB & use Rebug Toolbox to switch to CEX or DEX using these 3.55 Dumps? or do I have to Dump 4.46 or 4.53 firmwares & do the cex2dex to use with 4.46 & 4.53 updates.

if im thinking correctly this is the reason we dump 3.55 & use these dumps? as we need 3.55 firmwares to debug on non retail Debug units? or am I all wrong here. Just looking for a understanding in this Process & what is going on.

Also any info what the difference is between - Pro's-Con's using cex & switching from cex qa to dex & comparing using LV2 Kernel Swap cex2dex switching option in Rebug.

Thanks for any detailed info, just wanted to learn the real Differences between cex qa vs LV2 Kernel swapping...