MCUmall EPROM BIOS Chip Burner Forum Active Users: / Visits Today:
Highest Active Users:
MCUmall EPROM BIOS Chip Burner Forum
Home | Profile | Register | Active Topics | Members | Search | FAQ
Username:
 Password:
Save Password
Forgot your Password?

 All Forums
 MCUmall Forums
 GQ-5X
 copying flash nand from tv board		  Forum Locked
 Printer Friendly
Author Previous Topic Topic Next Topic  

jpeters

USA
4 Posts
Posted - 03/10/2016 :  08:41:21  Show Profile
I am just now playing with my new gq5x. What I am trying to do is copy an existing chip from a good board and copy to a new chip. What I am finding out is my copies do not work. I have cleaned all the chip leads. Sometimes I do not get anything but all ffff. It looks like this is a bit more complicated that coping a serial eeprom. The chip that I am trying to get a bin from is a Samsung k9f1g08u0b pibo. I am new to this so please be patient.
Reply #1

ZLM

2945 Posts
Posted - 03/16/2016 :  07:00:46  Show Profile
The programmer has no problem.

The problem is the nature of the NAND flash chip.

The NAND flash chip works like a hard drive. It has many bad blocks. The OS will take care the bad blocks by formatting hard disc.

When doing exact chip copy, an original good block data way write on a bad blocks on an new chip. That causes the new chip does not work.

So, in this case, you may need to write another new chip. if the new chip has bad block location avoided data to write, then the copied new chip will work.

Always use original new chips.
Go to Top of Page
  Previous Topic Topic Next Topic  
 Forum Locked
 Printer Friendly
Jump To:
MCUmall EPROM BIOS Chip Burner Forum © Copyright 2003 - 2009 Mcumall Electronics Inc. Go To Top Of Page
Generated in 0.07 sec. Snitz Forums 2000