Hacking Any help appreciated with semi-brick

[Wanted]

I tried to update my brothers phat 1000 from 3.51 m33-7 last night. I don't know much about the scene anymore and everything I tried to update to failed until I eventually tried a 3.52 m33 upgrade and now I can't get into the XMB. It just stays on a black screen for 20 seconds or so then powers off.

I can get into the m33 recovery menu and run the hellcats recovery flasher but it says I need to be at least 2.71 to work. Is there ANYTHING I can do to recover with such and old firmware?

I don't have a pandora battery but I have another PSP phat 1000 with Promethius loaded. Can I make a pandora battery to recover the other one then get it back to normal for my PSP? Or is the pandora mod one way? If I need to I will just have to buy a pandora battery and stick.

 

[Magmorph]

You can softmod a battery into a pandora. It is easy to switch back and fourth. When you hit select on the xmb there should be an option to convert your battery.

 

[xist]

Recovery Flasher 1.65 should work fine on 3.52. Are you sure you're using the latest release?

 

[Wanted]

Yeah I tried 1.65 and it just gives that sorry 2.71 required message and exits. I think the 3.52 stuffed it up so maybe the recovery menu is the 3.51 m33-7 one.

I got PSPGrader and I have that other PSP and stick so I can try modding the working stick and battery for pandora as long as I can go back after. I'm just not sure Pandora will work when I can't really boot other than to recovery menu.

 

[xist]

A Pandora makes the PSP boot from the MS so yes it should work fine.

 

[Wanted]

Awesome. Thanks for the help. I'll try and make a pandora battery then. A lot of guides say MMS needs to be less than 4Gb and I only have 4Gb but I'll try anyway.

 

[xist]

4GB is fine for a MMS.

 

[Wanted]

I used pspgrader to make the stick but if I boot with L it stays black then powers off. If I use select in xmb and choose make pandora battery it doesn't do anything. vsh menu is enabled in the gen recovery settings too...

 

[obito]

Did you use the Pandora and MMS correctly? Like insert mms with power off, hold L then insert pandora?

Was the MMS made correctly? Did you format while making it, and did the IPL inject properly?

Also, are you sure the pandora was made correctly? I think if the psp managed to automatically power on while you held L and put the battery in, the pandora is fine, and there must be something wrong with the MMS..

 

[Wanted]

My MMS didn't like the IPL. Must be a clone which i suspected with the