Here's a link to a modified PUP with peek & poke. It's not mine but others have used it & it works. It was created by harryoke with MFW:
DEX 3.55 PUP with peek & poke added as requested this is DEX3.55 update pup with lv1 & lv2 peek and poke added... so you can now use multiMAN on you backups on DEX:
I used MFW builder and has been tested and works.... hope you enjoy, only install if you have converted your ps3 to DEX.
remember to use Multiman 4.01 and the DEX patch for 4.01 and it works... do not use any other multiman cos it doesn't work.
Also from haxxxen: I have made a patch for the PS3UPDAT.PUP.355.001.forDEX.release.20101126d update (you can find on wiki or 3.60 sdk) with lv1.self and lv2_kernel.self from Kmeaw/Rebug and added lv1checksoff patches.
This works great with old homebrew such as mm 2.09 bdemu2 or fselfs
Download Links: dextail.rar (13.37 MB)
Put the pup without rename in same directory and run patch.bat