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 Post subject: Reballing BGA?
PostPosted: March 27th, 2018, 9:34 
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Joined: October 20th, 2014, 5:25
Posts: 87
Location: Sweden
This is most likely a stupid question, but since there's no manual anywhere, I have to ask: is it required to reball the BGA-chips prior using them in the adapters? (More specifically, the eMMC-adapters)

I got hold of two scrapped Android-phones, both using eMMC, but nothing shows up when I connect them to the adapter hooked up to the SD-port. There is ofcourse a possibility I damaged the chips whilst removing them using the IR-station, but other than that I fail hard to understand why nothing happens with the adapters.


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 Post subject: Re: Reballing BGA?
PostPosted: March 27th, 2018, 9:39 
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Joined: October 24th, 2009, 15:22
Posts: 569
Location: Poland
No need. Use without reball. Just clean the chip very good. If you not clean enough it could be not recognized. Also there is a chance that you damage the chip.

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 Post subject: Re: Reballing BGA?
PostPosted: March 27th, 2018, 9:46 
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Joined: October 20th, 2014, 5:25
Posts: 87
Location: Sweden
Thanks. I'm aware of that the chips could have been damaged, but I have to try everything I can before scrapping them.

It's way harder than I thought to get dead devices to practice on. People are very very unwilling to donate their dead phones / pen drives etc, even if I assure them I only want to practise and learn on them. I wish I had a truckload of dead devices. These two phones are the first one I got hold of since november last year. Too long time between the cases = I forget everything I learned last time, and have to start all over again.

And that sucks.


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 Post subject: Re: Reballing BGA?
PostPosted: March 28th, 2018, 15:48 
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Joined: December 29th, 2016, 18:13
Posts: 40
Location: Poland
What exactly eMMC you got (Raster/Pitch)

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 Post subject: Re: Reballing BGA?
PostPosted: March 29th, 2018, 13:27 
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Joined: August 15th, 2006, 3:01
Posts: 2524
Location: CDRLabs @ Chandigarh [ India ]
arvika wrote:
No need. Use without reball. Just clean the chip very good. If you not clean enough it could be not recognized. Also there is a chance that you damage the chip.


Agree And Disagree ,
Depends on The Emmc Reader The Guy Has ,Some Need The Balls Most Do Not

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 Post subject: Re: Reballing BGA?
PostPosted: March 29th, 2018, 17:16 
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Joined: October 24th, 2009, 15:22
Posts: 569
Location: Poland
Amarbir[CDR-Labs] wrote:
Agree And Disagree ,
Depends on The Emmc Reader The Guy Has ,Some Need The Balls Most Do Not


The good one no need.

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 Post subject: Re: Reballing BGA?
PostPosted: March 29th, 2018, 18:04 
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Joined: November 29th, 2006, 10:08
Posts: 7093
Location: UK
arvika wrote:
Amarbir[CDR-Labs] wrote:
Agree And Disagree ,
Depends on The Emmc Reader The Guy Has ,Some Need The Balls Most Do Not


The good one no need.


It’s true, good adapter/reader doesn’t need Re-balling

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