Depends what the error is
Retail or CFW

it is a CFW

Download 3.55 Downgrader.PUP. Load it on the USB like a normal CFW update.
Follow the instructions on the video. Once recovery menu is accessed go to System Update and select update from USB. This will downgrade your console but it will fix your Semi-Brick.

the problem is that i have the beeps, the beeps u get from bricking it it wont turn on so i cant do that i need e3 card reader or e3 flasher im not sure i want to buy that just to fix it

Jarwis wrote the problem is that i have the beeps, the beeps u get from bricking it it wont turn on so i cant do that i need e3 card reader or e3 flasher im not sure i want to buy that just to fix it

Either way you should be able to get to the recovery menu. Trust me I have bricked my PS3 many times.

Heli wrote

Jarwis wrote the problem is that i have the beeps, the beeps u get from bricking it it wont turn on so i cant do that i need e3 card reader or e3 flasher im not sure i want to buy that just to fix it

Either way you should be able to get to the recovery menu. Trust me I have bricked my PS3 many times.

uknow the beeps when u have bricked it? i have the e3 card readr. butt when i try to do what it is on the vidoe i cant get it to the recovery menu... and i change from dex to cex thats why its bricked any help would be appriciated if u can add me on skype jonas.vilnes that would be nice

There are other methods of accessing the Recovery Menu. its been a while so i don't remember but look on YT. You need to find a way to access that menu. You shouldn't even need any type of E3.

Sounds like a full brick if it doesn't power on.
Anyway Two methods to try.
Remove the Hdd and try to boot without it.
If a menu comes up it maybe fixable, Put in a new hdd (not your old HDD)and reboot.and put the 3.55 DEX downgrader on a usb.

Get the DEX 3.55 downgrader. and the lv2diag.self made by jaicrab.
Place them both on a usb ,so you should have on the root of a USB.
PS3UPDAT..PUP and Lv2diag.self.
Put the usb into the right usb port and power on and leave it till it powers off

justeve wrote Sounds like a full brick if it doesn't power on.
Anyway Two methods to try.
Remove the Hdd and try to boot without it.
If a menu comes up it maybe fixable, Put in a new hdd (not your old HDD)and reboot.and put the 3.55 DEX downgrader on a usb.

Get the DEX 3.55 downgrader. and the lv2diag.self made by jaicrab.
Place them both on a usb ,so you should have on the root of a USB.
PS3UPDAT..PUP and Lv2diag.self.
Put the usb into the right usb port and power on and leave it till it powers off

i will try that now, (The Signs of this brick is 5 double beeps which are very fast and turn off after 3 seconds with no video output. ) this is what happens to me, im glad you guys can help me out, rly want to have my jailbreak back up and running for the old time sake anyone that can contact me on skype for faster help? Skype = Jonas.vilnes