You can't, even with the battery.
definitely no the best u can downgrade without a Pandora battery is 3.03.... what you can do is use the Pandora battery to downgrade and the results will be great I've done it on my psp and when i downgraded my psp i got to download as many games that can fit into my psp(full games of course) so downgrade your psp using a Pandora battery:)
You can't.
You can only get cfw without a Pandora if your psp is firmware 5.03 or lower and you use the program chickHen to do so.
No, you must have at least 3.52 M33 Actually you can, assuming you have Official firmware 1.50 on your Psp and have installed Devhook. Even if you have devhook you can only play ISO's that devhook can support (up to 3.03).
No. You must restore to Downgrade the Firmware!
You can't, even with the battery.
To downgrade Samsung Galaxy S2 without rooting, simply download the appropriate ICS 4.0.3 firmware, preferably from sammobile.com, and flash the gadget using Odin.
you cant, you need 3.03 or below to downgrade without Pandora stuff.
definitely no the best u can downgrade without a Pandora battery is 3.03.... what you can do is use the Pandora battery to downgrade and the results will be great I've done it on my psp and when i downgraded my psp i got to download as many games that can fit into my psp(full games of course) so downgrade your psp using a Pandora battery:)
No, you can't. And even with a Pandora Battery, you cannot downgrade the 3000 or the late 2000 model.
You can't. You couldn't even if you did have a Pandora's battery.
Nope, but I would look into getting a Pandora's Battery anyway - it's dang useful, and if you own a bunch of old SNES games, you can play them on the go. As for your original question, however, I'm afraid it's not possible.
It is not possible for a PSP 3000 series to be downgraded. However without the latest updates, the newest games will not work on it, nor will you be able to connect to the PSN.
Well it can't be done without shsh which needs a jailbreak to do it. But besides jailbreaking doesn't hurt your iPod and the only reason you would need to Downgrade is if the jailbreak isn't untethered but so far almOst ever firmware has an untethered jailbreak. Good luck~Jake
No, you must use a Pandora's Battery. Only PSP firmware 3.50 or below can have custom firmware flashed over it without using a Pandora's Battery and Magic Memory Stick. With 3.50 and below you can use a Lumines UMD. With 3.03 and below you can use an unpatched GTA: Liberty City UMD. With 2.81 and below you can use HEN. ---- I wrote a guide here for downgrading without a Pandora Battery: http://honorshard.com/blog/2009/03/01/downgrade-psp-with-official-firmware-without-a-pandora-battery/ Feel free to check it out and if you like it please share it. I had OFW 4.05 and successfully downgraded to 4.01 M33-2 without a Pandora Battery!
There is no way to downgrade from iOS 7 without disobeying the Terms.