How to Install 1.50 Kernel Add-on for 5.00 M33 Custom Firmware
Good news for all fat PSP a.k.a. PSP-1000 owners out there. Dark Alex has just released the latest 1.50 add-on for the latest custom firmware. Now, what does this add-on really do? The 1.50 kernel add-on brings out the full homebrew capability of your PSP. It lets you run lots of cool programs created by great hackers and programmers out there. One application is the infrared remote application which lets you control any TV, VCR and even the tiny havoc helicopter.

5.00 M33 + 1.50 Kernel = Killing Machine, illustration by DL
Enough with the introduction. Read the guide after the jump.
Below are notes from Dark Alex himself.
because even deleting LFTV and korean font there was not enough space this time, this version will delete also flash0:/dic/apotp.dic
I’m unsure about what this file is for (maybe for japanese text predicition?) but system works fine with it.
IF you want to keep some of the things deleted by the 150k_installer do following things.
- Install DC7. Use the Format flash options in nand operations menu. Make flash1 size like around 1 MB smaller, make flash3 the smallest possible, and make flash2 a bit smaller (not too much, or you won’t be able to download games and demos from psstore). Then, make flash0 as big as possible and continue.
- Install 4.01 M33, update to 5.00 M33.
- Install 1.50 addon. Dump 5.00 using the latest psardumper, and flash the deleted files you want back.
Warning: You must do the following at your own risk. I won’t be held responsible for any damage it may do to your device.
The Requirements
- A Fat PSP (a.k.a. PSP-1000) installed with the latest custom firmware 5.00 M33.
- Enough battery so your PSP wouldn’t accidentally turn off in the middle of the flashing.
- USB Cable
The Guide
- Connect your PSP to your computer and put it in USB mode.
- Download the official 1.50 firmware and copy it to the root of your PSP’s memory stick. You can get the 1.50 firmware here.
- Download the 1.50 Kernel Add-on for 5.00 M33 installer, extract it anywhere on your computer and copy it to /PSP/GAME5XX.
- Go to your XMB and scroll to GAME>Memory Stick then run the 1.50 Kernel Add on update. Follow the onscreen instructions and wait. The PSP will restart automatically after the update has been installed.
- Congratulations, you now have a full homebrew enabled PSP.
Let us Prep you up for cisco ccda exam, an unrivaled a+ certification or a hard-hitting security+ task.
Again, thanks to Dark Alex for providing us homebrew goodness.
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Distributed by Smashing Magazine
43 Responses
[...] UPDATE: For PSP-1000 a.k.a Fat PSP owners out there, 1.50 kernel add-on is already out. Read the installation guide here. [...]
Thanks for the great guide!
hai stylemo, i need ur help….
can i create a pandora battery and magic memory stick with slim psp??????? plis help me coz i brick my friend’s psp
i know about despertar del cementerio 7 but i just not sure about homebrew capable psp. is it means a fat psp or slim psp???? plis help me…..
and is it means the psp need 1.50 kernel add on to use despertar del cementerio???
@yan: how did you brick your PSP?
i’d just give my screenies instead.
@kurnia : i brick it when i want to upgrade to 5.00m33
@yan: borrow someone’s pandora. That’ll fix it.
sory not possible to create a pandora baterry on the slim tried many times, try to buy one u can create a mms though
@yan: If you are not sure of what you are doing, always ask here in teh comments or other PSP forums out there.
Is this New cfw worth upgrade now? s it have poploader( I am play old ps1 games). By the way, @kurnia, Is the bricked PSP in CFW before the brick, If so, give this a try:
First of all take out the psp battery and put it back in.Then hold the R key and keep holding it and turn on your psp and you should get the recovery menu and then press on toggle usb and have your memory card already in it and download this link
http://www.sendspace.com/file/heru4e
extract the files and then copy the RECOVERY folder to PSP and then Game
Into GAME folder then donload the 4.01 update
http://www.psp-hacks.com/file/1506
and rename it 401
and paste it in the RCOEVERY folder and press toggle usb again and then choose the option that says this PSP/GAME/RECOVERY and try that.
Or go to congirations and then choose some option like that.
I have a psp slim. Can/should I put this in my psp?
@Ryan: Obviously, no.
Does any one know how to put custom fonts and sounds on the fat psp?
@jeff: That involves flashing and it’s dangerous if you don’t know what you’re doin. If you want I’ll write you a guide/walkthrough. Let me know
hey i did it all right but when it started flashing it got to savegame_data.prx (i think thats the name) and then it sayed error. any ideas of a fix?
will this work on 5.00 M33-3?
if i dont have the “GAME5XX” folder do i just add the files to the “GAME” folder or do i add the “GAME5XX” folder to my PSP?
can u send me a guide/walkthrough please???
Hey admin plz reply to us will this work on [5.00 m33-3]and is it really safe doing this update ???? Can this update lead to a bricked psp??Cm on plzzzzzzzzzzz reply thnx
hey, i did the same mistake as you did. eventually i gave it a shot and nothing bad. in matter a fact, it’s workin excellent, so give it a try… it should work perfectly…..
by: ANTONIO VEGA JR.
hey admin,
first, thank you for this
second, in the “root” folder there are two folders inside, so in wich one or where do I put the file of the kernel I just downloaded?
thanks
Hey admin
thanks 4 this guide and i wanna ask
do i have to create a GAME5XX folder…and does this work for 5.00 M33-3
lol i got a weird pic
These instruction tutorials were amazing. I had been using 3.40 OE-A on my PSP phat for two years now, as I could never get these M33 versions to work. I’m now up to 5.00 M33-4 and can now play LocoRoco 2. Thanks for the help.
err…how can i use the remote app
oh yeah… can you please do a tutorial on psp tube
wow amazing,now my psp have been 5.00 version thanks to stylemo woaaaaaaaaaaaaaaaa
I’ve just installed this as outlined above on my PSP1000 running 5.00 M33-4. Thanks!
In the guide on 2nd step where should i put the 1.50 firmware?
can i install this when i have 5.00 M33-4?
Dark Alex is like the GOD of PSPs
hai stylemo, i need ur help….
how do we use the remote control pls help thx in advance
hey featbase just open the memorystick and paste it. The place where u paste it is the root of the psp
how do i get the infrared remote
dear Dark aLex
when are u going to do an update for psp 5.00m33-6 to 6.00?
Ur updates help me a lot…tnx for all of it….i’ve been to this website long and now i’m thanking u for ur updates..plx post a message immediately when u have the 6.00 update…tnx thats all…
Have a fat psp wit the 3.51 M33 custom firmware, would like to upgrade it to 5.50 M33-6, how to proceed… i am afraid to brick my psp, want the correct instruction about that !!!!
Thx !!
Error is the 3.71 M33-2 custom firmware want to upgrade to 5.50 M33-6 !!!
Plizzzzzzzzzz!!!
Статья оставила сложное, даже в какой-то степени неоднозначное, впечатление… Даже не знаю, что сказать… Нужно время, чтобы обдумать прочитанное.
Да, похоже что в действительности – так оно и есть. P.S. Сайт, кстати, у вас прикольно сверстан
Вообще я люблю написать какую-нибудь скабрезную критику, но тут ни к чему не придраться!