inorder to claim warranty directly from sony, you will need to register warranty for your psp upon purchase in http://asia.playstation.com/eng_hk/. enclosed here is the sample of warranty registration

guys, i'm having a problem updating my psp.
my current firmware is 3.71 m33-4. so i download the 3.80 frm dark alex website, then i download the official 3.80 from sony website. i follow all the intructions already. when i run the update, verifying 3.80 ok, verifying 2...something ok,so i press x(i think so) to run the update. then after awhile this message popup.

the system configuration of this psp system does not appear to be correct. the update cannot be completed. contact technical support for assistance.(DRNFFFFFFCD).

PLS HELP!!

Hey dude, i havent tried it yet. I'm running 3.71 M33-3 at the moment. Did it brick your psp while you see that msg?

The upgrading process was problem-free. The trouble comes after the upgrading is complete. I can no longer find my games and saved games data on my PSP's menu even though the files are still on my Memory Stick.

After I did some reading online I found out that on firmware 3.80, Sony decreased the size of FAT driver for the Memory Stick from 185KB to 95KB (to make room for new features perhaps) and they might have screwed something up.

My Memory Stick is formatted to FAT, and it might explain why I can no longer see my games and saved games in the PSP's menu. After I reformatted my Memory Stick to FAT32, everything was back to normal. 

Also, you can't play PS1 games on 3.80. Current Popsloader (PS1 emulator) is not compatible with 3.80 yet, have to wait till Popsloader written for 3.80 released.

So, if you don't want to use FAT32 formatting for your Memory Stick (some people say that FAT is faster than FAT32, I didn't notice any difference) or play PS1 games, don't upgrade to firmware 3.80.

Dude,

just a suggestion because I havent look at 3.80 yet...try to go to recovery console and check your driver info - whether it is pointing to 3.71 or 1.50 kernel? In order to upgrade, i suspect your kernel needs to run 3.71 and not 1.50.

However, I could be wrong on this....

Good luck..

I sincerely thanks maxguy for the patience to teach me step-by-step to update to 3.80 m33-2. Thanks very much!

It is now installed in my PSP and now copying all my backed up files back to the PSP folders, hope everything can run smoothly.

hi mdinie, pls on your msn. hope able to assist you

on edi... waa..why everyone can ine cannot

actually u are wrong. i formated mine to FAT again and its still working. so its still not limited to FAT32...  just the file allocation is a bit diff.