How to downgrade(If on 3.55)

Here we’re downgrading from 3.55 to 3.41(3.56):

1. Download this (modified PUP + Lv2diag files) Attachment is down below

2. Get your Factory/Service Mode (downgrade) device ready

3. Get your USB storage device ready (FAT32 formatted)

4. Power down your PS3 console (toggle power switch on rear or unplug from wall)

5. Copy FILE1/Lv2diag.self (from Lv2diag_355.zip) to the root of your USB storage device

6. Copy PS3UPDAT.PUP (from Downgrade_355.rar) to the root of your USB storage device

7. Insert your downgrade device into the PS3 USB port nearest the Blu-ray drive

8. Reconnect the main PS3 power source and turn on your PS3

9. Your PS3 should boot into Factory/Service Mode

10. If you decide to chicken out, get out of Factory/Service Mode by using FILE2/Lv2diag.self — Copy that to your USB storage device, overwriting the other, and power on your PS3 with it connected. Otherwise proceed to the next step

11. Power down the PS3 using the controller

12. Remove your downgrade device and insert your USB storage device

13. Power on your PS3 and the downgrade should start

14. Your PS3 will automatically turn off upon success

15. Restart your PS3 and you should be back in Factory/Service Mode

The file is too big for any of the online virus scanners so i scanned it with my Kaspersky Anti Virus. (I have the full paid version so it's not lousy)
The PS3 update wouldn't upload so if you need it just PM me