Help please!

[JtagyV2]

Okay I read my nand twice, and I am using jtag tools and now when I compare them two I get 1 non matching block found 195, do I compare it to a clean Xenon nand,

Is there a way to fix that one bad block, like using jtag tools and go in the repair tab and put the bad nand the one with the one bad block and I pick for the clean nand the one from the first read/dump I dont know how to do this could someone tell me? thanks!

 

[Krafter]

No, you need to read your nand twice and compare (some would say three). Even if you have a bad block they will be bad in the same spot on both dumps therefor 0 non matching blocks.

Read it again and do so until you get 0.

 

[JtagyV2]

Okay So basically, I read it once with no error's if I read it my 3rd time and get it to match my 1st read/dump I am fine?

 

[Krafter]

You may still show errors while dumping it but it should be the same block(s) every time. If not then you would probably have a soldering issue. Once you get 2 -3 good matching dumps then you can worry about fixing the bad blocks.

 

[JtagyV2]

Okay, So I read the nand/dump couple of times or maybe just one more and compare them what am I looking for okay so my first/second one got a 1 non matching block 195, what do I do about this, like do I do another dump/read how do I tell if I get a good nand?