Originally posted by tanveerse:

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I tried everything in the troubleshooting section, nothing works.

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Originally posted by ScoobyJon:

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Hi Larrylje,
I'd like to start by say THANKS for this & all your previous guides, your a star...
I have previously made MMS & Pandora, from your old guide from December last year (now deleted) which I have used successfully a number of times to downgrade my son's (& his freinds etc)

I have just read the whole 7 pages of this thread & I have some questions that dont seem to have been previously answered. - Hope you can help

1) How can you tell if a slim is factory 4.05 with incompatible motherboad? or if it has been upgraded to 4.05?
It is a white slim model ser No. starts 03-2740****-*******-PSP2003

2) If I tried the MMS + Pandora in a new slim with non flashable board - what happens?
Does it brick it ? or
Does the downgrader just not work? ie. nothing happen & it just stays the same?

3) Finally if this model is possible to be down graded. Do i need your new Universal downgrader, or is the 1 i got from you before ok?
dated 02/10/2007 (sorry not sure which CFW it loads but its the downgrade which is most important, isnt it?)

4) I have seen many video's on you-tube claiming to downgrade slim 4.05's but ofcourse I can NOT tell whether they are just downgrading previously updated models or not? - Som even have links to make MMS

Many thanks again
(edited to try to get rid of spelling mistakes)

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Originally posted by quicka2Not larrylje but I think i can somewhat help you..

1. on ur PSP go to Settings\System Settings\System information and the window will display system software version, nick name and MAC address.
.[/quote:

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Its definately version 4.05 but as it belongs to the son of my girlfriend's boss, I'm not sure if he has upgraded it to 4.05 or not...

-I was'nt sure if this could be determind from the serial no or not, I know this was the case when chipping the old PS & PS2.

As for questions No.2 & 3 i was just hoping while Larrylje answered the other points if he could clarify if trying it could damge it.
also whether or not i needed the newer software for this specific case, as the MMS i created from his previous guide has always worked fine.

From other threads I have read, I think he deleted the older guides, as they had become too large with people asking the same questions over and over again.....
....unfortunately it looks like the same is happening again with this guide.

Thanks anyway

Originally posted by ScoobyJon:

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Originally posted by quicka2Not larrylje but I think i can somewhat help you..

1. on ur PSP go to Settings\System Settings\System information and the window will display system software version, nick name and MAC address.
.[/quote:

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Its definately version 4.05 but as it belongs to the son of my girlfriend's boss, I'm not sure if he has upgraded it to 4.05 or not...

-I was'nt sure if this could be determind from the serial no or not, I know this was the case when chipping the old PS & PS2.

As for questions No.2 & 3 i was just hoping while Larrylje answered the other points if he could clarify if trying it could damge it.
also whether or not i needed the newer software for this specific case, as the MMS i created from his previous guide has always worked fine.

From other threads I have read, I think he deleted the older guides, as they had become too large with people asking the same questions over and over again.....
....unfortunately it looks like the same is happening again with this guide.

Thanks anyway

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The only information I have read is SLIM PSP systems that have a 4.01+ (+ = above) stock firmware has the new motherboard.

As far as I know it will not brick the PSP if it is a SLIM PSP with new motherboard. It will block the IPL from loading the custom firmware.

The files are all the same in my previous thread. I just combined both Official and Custom firmware guides together and streamlined it to make it more clear.

Originally posted by larrylje:

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As far as I know it will not brick the PSP if it is a SLIM PSP with new motherboard. It will block the IPL from loading the custom firmware.

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Quote:

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The files are all the same in my previous thread. I just combined both Official and Custom firmware guides together and streamlined it to make it more clear.

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Originally posted by Kraker2k:

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Hi all, I have a PSP Slim and I had 3.71 M33-2 firmware on it. (I purchased it like this) I recently upgraded to the 5.00 m33 CFW but I want to downgrade back to the 3.71 as some of my saved games don't work.

I have followed this guide but I can't seem to get the Pandora menu to boot up. I have set the battery to Service mode using 2 different tools but the Pandora menu does not want to load up.

I power off the PSP, remove the battery. Re-insert the battery but after this the PSP just loads up back to the XMB. I have tried it with 2 different memory sticks, both do not work.

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Originally posted by Uruha_Hel:

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Hey Larry i hardmodded my battery and got the mms files from another source (they were the same thing as yours) and i got my psp to 3.71m33 but...when i tried to run the pandora battery creator (which actually started this time), it said the game could not be started...

so since i already had 3.71m33 i was like wth i have cfw lemme just upgrade to the recent one. So i went 2 5.00m33...

everything seems to be working fine but am i at risk for something happening to my psp because i didnt run the battery creator or am i all set?

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