go here for the cfw and to learn about them You must login or register to view this content. then download qa and install before updating firmwares

Just install Rebug 4.41.2 from XMB on top of kmeaw by following the guide below:

1- Dump your NOR/NAND Flash (optional):
Install latest version of You must login or register to view this content., plug in a FAT32 formatted USB flash drive into the right USB port, launch multiMAN under the Game column and go to mmOS > Press [O] on any file > Open in HEX viewer > Press [SELECT] > Press [START] > Export GameOS LV2: Select No > Export HV LV1: Select No > Export FLASH: Select Yes

2- Install Rebug 4.41.2 from XMB:
Download Rebug 4.41.2 from Rebug's website, verify the md5 hash, rename the PUP to PS3UPDAT.PUP, put it on your FAT32 formatted flash drive in PS3\UPDATE, go to System Update and Update via Storage Media. Make sure there's NO original game disk in the drive and that you DON'T Update via Internet or else you would risk installing OFW higher than 3.55!

3- Enable QA:
Go to Package Manager > Install Package Files > PS3 Hard Disk and install Rebug Toolbox. Launch it under the Game column, go to Utilities and change Toggle QA Flag to Enabled. This is to ensure easier and safer downgrading.