Hello,
Can Someone Check and please help me recover from this ROM ,If i install this ROM on donor board No busy light ,Same issue if used on native board

_________________
Regards
Amarbir S Dhillon , Chandigarh Data Recovery Labs [India]
Logical,Semi Physical And Physical Data Recovery
Website-> http://www.chandigarhdatarecovery.com

You appear to have selected the wrong ROM capacity. Your dump is 16MB, but the actual ROM appears to be only 256KB (0 - 0x3FFFF).

The embedded NVRAM (0x28000 - 0x28FFF) has an XOR16 checksum of 0x0000. I don't know how to check its CRC, but the NVRAM would appear to be OK. At least all 5 copies are identical.

The first 16 bytes of the ROM are all 0x00, so this looks wrong to me.

_________________
A backup a day keeps DR away.

Here is a ROM from the HDD Guru files area:

https://files.hddguru.com/index.php?action=downloadfile&filename=Hitachi%20HDS721050CLA362-JP2OA3EA-JPB521HF0PN8ZH.rar&directory=PC-3000-UDMA%20Support/HITACHI-IBM-ARM/7210CLA&


Here is yours:


It would appear that offsets 0 - 0x11 have been sabotaged.

Note that your ROM version is JP2NB3MA whereas the one in the files area is different, JP2NB3EA.

_________________
A backup a day keeps DR away.

Fzabkar,
This is the programmer i used to read EPROM -> https://phyton.com/categories/product/ChipProg-40 . The ROM is Question is 25FU206 ,Today i Updated to Latest version ver 2.60.00 ,Typing 25FU206 in the device list gets me 4 results Sanyo LE25FU206TT and LE25FU206MA " Both of them have ISP modes Also ,The Tool says its 4,194,304 Bytes ,The chip is actually 2MBit [ 256KB x8 Bit] , So i should Read Code From 0 To 0x3FFFF "Which i will do and add to this reply " , I also do see that top row is all ZEROS ,Its a pain to see people doing this ,I also have two more programmers from Elnec that i will fire up and report back here .Frank did you note at offset 0x40000 we do see the stuff thats missing in starting line and second line after that also has 0x02 Missing ,Something is wrong with this programmer possibly they have wrong size and messed up algorithm To read chip .Serial No of This HDD is HK0W700R , FW is Indeed 3MA .

PS : The programmer keeps reading the way it wants i will try it on my ELNEC .

_________________
Regards
Amarbir S Dhillon , Chandigarh Data Recovery Labs [India]
Logical,Semi Physical And Physical Data Recovery
Website-> http://www.chandigarhdatarecovery.com

Hello,
Indeed Phython Programmer is messing up everything ,I will send them a email ,Using Elnec BeeProg+ Software Ver 3.69 "Damn 69 " I have the proper ROM code now ,Its attached please check this .

PS : Email was sent to phython and this thread was told to be referred

_________________
Regards
Amarbir S Dhillon , Chandigarh Data Recovery Labs [India]
Logical,Semi Physical And Physical Data Recovery
Website-> http://www.chandigarhdatarecovery.com

Hi,
The file i attached in the post up is of a DONOR ,The Correct ROM for the case is here ,attached to this post

_________________
Regards
Amarbir S Dhillon , Chandigarh Data Recovery Labs [India]
Logical,Semi Physical And Physical Data Recovery
Website-> http://www.chandigarhdatarecovery.com

Your donor and patient appear to have identical boot blocks. I would patch the sabotaged bytes and try the patched ROM. Hopefully there is no other sabotage.

_________________
A backup a day keeps DR away.