please help me

sreejith51 · #1 (**permalink**) 7th Jun 2006, 10:21 am

I have an mp4 player and i upgraded it with a wrong firmware. as result my display went dead.windows was not at all detecting my player.then i found a recovery guide in the link included in this site. as mentioned in it i diassembled my player and shorted the memory chip. now windows is
detecting my player as ADFU device and not as a flash device. i have tried to recover with several fws. even though fw upgrade was sucesses windows still detecteting it as ADFU& mp3 player utilities shows "NOW ON RECOVERY MODE,PLEASE SELECT FIRMWARE FOR RECOVERY". please help me. some one please. i am scared.
thank you.

[sreejith51]

arish_06 · #2 (**permalink**) 7th Jun 2006, 11:19 am

Sreejith51, how does your player look like?

You said the fw upgrade was successful after you shorted the chip. Does this mean your player works now...not a dead screen?

arish_06 · #3 (**permalink**) 7th Jun 2006, 11:27 am

sreejith51, I may be wrong but this could mean that your chip got damaged permanently from the shorting. As a result, your player may always be recognized as an ADFU device and the mp3 untilities would start up in recover mode even after you try to recover it with various firmwares.

But if your player is functioning properly after the recovery you said you did, then the problem may be something else...

Let me know if your player works and describe your player (what was the original firmware, etc.)

sreejith51 · #4 (**permalink**) 7th Jun 2006, 11:32 am

dear arish_06
my player is screen is blank now . but when i started to upgrade with firm ware its led screen was bright. after the completion of fw upgrade windows detecting it as an adfu device.

(almost like this). please help me.

arish_06 · #5 (**permalink**) 7th Jun 2006, 11:51 am

sreejith51, if you can, try shorting it again and then recover it with any firmware of similar version to your original (i.e. 3.2.16, 3.2.13, etc.).
Or if your mp3 utilities cd has a backup firmware on it as a .fw file, try using that.

Also, can you describe exactly how did you short the pins the first time. Maybe you accidently cross-touched the wrong pins or something...

arish_06 · #6 (**permalink**) 7th Jun 2006, 12:14 pm

sreejith51, the reason your player is detected as an "ADFU Server" is because short-circuiting is temporarily supposed to corrupt the firmware data in the memory chip.

Normally, once you recover it and format the memory, the player is no longer recognized as an ADFU server.

But yours keeps on being recognized as ADFU, which means that the errors that were supposed to be temporary in your memory chip don't get fixed completely...so my guess is something went wrong when you shorted the pins.

I can't guarantee you that this is the problem but most likely, your memory chip has been damaged.

I wonder if there's a way to fix that...maybe replacing the memory chip is the only solution.

arish_06 · #7 (**permalink**) 7th Jun 2006, 12:19 pm

...on second thoughts, maybe you are trying to recover your player with uncompatible firmwares.

What was your original firmware version if you know?

For instance, if your player was built for 3.5.35 firmware, upgrading with 3.2.16 can kill your player and maybe cause it to be recognized as an ADFU device again.

Make sure that the first two numbers of the firmware that you're trying to use to recover matches with the first two numbers of your original firmware version.

For example, if you have a 3.2.16, use 3.2.13, 3.2.16, etc. and don't use 3.5.35, 3.0.45, etc.

tadad1 · #8 (**permalink**) 7th Jun 2006, 3:31 pm

sreejith51, If your player is being seen as an ADFU device it is in recovery mode and waiting for you to upload the firmware. The firmware you upload need to be a full firmware not a backup dump.bin a backup dump is not a full version some files are not extracted.

arish_06 · #9 (**permalink**) 7th Jun 2006, 9:22 pm

sreejith51, I believe tadad1 is right...maybe you were using a dump firmware.

If yes, then you can go ahead and forget what I said about your memory being damaged and all.

Sorry if I scared ya even more...lol :lol:

Thanks Tadad1...by the way just to end my doubts, do you think short circuiting can damage the memory permanantly...don't know where I got this idea but heard it somewhere.

tadad1 · #10 (**permalink**) 7th Jun 2006, 11:08 pm

arish_06, Considering that you can fry a memory chip just by handling it while statically charged I would imagine that shorting it while current is flowing through it has good chance of sending it to heaven. That said if my player were dead and it was the only option to bring it back to life I would give it a go.