If TN-B offers downgrade, why not a 6.2+ CFW?

[cryophil]

I'm a little confused by what TN-B is able to do that allows permanent (reset resistant) downgrading to other firmwares, but does not allow a CFW for 6.2 or 6.35.

If it can access root/lower levels to displace the firmware to lower versions, why can't a CFW for 6.20/6.35 be developed and loaded by TN-B in the same manner?

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[MaX_SLayeR]

I'm a little confused by what TN-B is able to do that allows permanent (reset resistant) downgrading to other firmwares, but does not allow a CFW for 6.2 or 6.35.

If it can access root/lower levels to displace the firmware to lower versions, why can't a CFW for 6.20/6.35 be developed and loaded by TN-B in the same manner?

It's possible on 1000s/older 2000s. It's not possible on newer 2000s/3000s/Gos because there's a new chipset in them that can detect if you've tried installing CFW and it bricks your PSP. The reason we can downgrade is because even though you are downgrading, the FWs are still official Sony FWs. They aren't modified in any way like CFWs are.

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[cryophil]

The reason we can downgrade is because even though you are downgrading, the FWs are still official Sony FWs. They aren't modified in any way like CFWs are.

Ah. So what would be the point of downgrading if you can't get a CFW and get reset resistant operation?

Sorry, I'm a noob.

[Fabianxx13]

The reason we can downgrade is because even though you are downgrading, the FWs are still official Sony FWs. They aren't modified in any way like CFWs are.

Ah. So what would be the point of downgrading if you can't get a CFW and get reset resistant operation?

Sorry, I'm a noob.

For older PSPs that can be downgraded to use a custom firmware. For example, my friend Ben has a PSP1000 on 6.20, if he wanted to, he could downgrade and use CFW because he can. The downgrader, as I look at it, is AIMed for users who are able to use it. Hope this helps.

[thedicemaster]

downgrading can be used for 5.03HEN based "CFW's" which have higher pugin and homebrew compatibility, as well as PSX support.
TN and the psp community here are doing a lot to make downgrading pointless.

[muneeb_nawaz]

i have downgraded my PSP 3000 3g from FW 6.20 to 5.03 successfully. there is no risk of a brick if u do it as it is told on PSP GEN

[need4speed]

The downgrade Is not possible on the psp 3003 4g then?

[Nymphaea]

It is, but the earliest possible version on a 04G PSP is 5.70, and since that was never released as a download, 6.00 is the best you can do, which gets you nothing.