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jeremyb
 Post subject: Trouble reading Micron BGA-152 Chips
PostPosted: April 15th, 2015, 21:57 
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Joined: July 30th, 2012, 3:37
Posts: 308
Location: Fairfield, CT USA
Is there some trick I don't know about for reading Micron BGA-152 chips with NR/FE?

I've tried reading @ 3.3v & 1.8v, also tried converting the 3.3v signals to 1.8v.
Donor PCB's all use 1.8v..

There are always random groupings of uncorrectable bit errors..

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arvika
 Post subject: Re: Trouble reading Micron BGA-152 Chips
PostPosted: April 16th, 2015, 3:31 
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Joined: October 24th, 2009, 15:22
Posts: 843
Location: Poland
NR is not so good for modern memory flash. Many many reading errors.

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wksk
 Post subject: Re: Trouble reading Micron BGA-152 Chips
PostPosted: April 24th, 2015, 14:46 
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Joined: March 14th, 2013, 19:15
Posts: 24
Location: Florida - USA
I get same thing with Micron BGA-152 chips. PC3k, FE, and i even tried on VNR where you can control the various voltages but i get same results no matter which power scheme used.
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arvika
 Post subject: Re: Trouble reading Micron BGA-152 Chips
PostPosted: April 24th, 2015, 16:46 
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Joined: October 24th, 2009, 15:22
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Location: Poland
@wksk - can I check this via TV? You can contact me on PM.

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HaQue
 Post subject: Re: Trouble reading Micron BGA-152 Chips
PostPosted: April 24th, 2015, 20:20 
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Joined: December 4th, 2012, 1:35
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Location: Adelaide, Australia
I am about to read one today - will report on how it went.
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Suitsof
 Post subject: Re: Trouble reading Micron BGA-152 Chips
PostPosted: May 7th, 2015, 7:34 
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Joined: May 6th, 2015, 6:31
Posts: 60
Location: Earth
jeremyb wrote:

There are always random groupings of uncorrectable bit errors..


Did you use ReadRetry?
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HaQue
 Post subject: Re: Trouble reading Micron BGA-152 Chips
PostPosted: May 7th, 2015, 8:20 
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Joined: December 4th, 2012, 1:35
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Location: Adelaide, Australia
The BGA I read - with 2 different tools, had bit errors as well, spread over the dump though.
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