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i wanted recovery a pendrive but i found a microSD

April 19th, 2012, 12:30

This is first time i open a pen-drive and i found a microSD, so before to judge it unrecoverable to customer i wanted to ask here if somebody have faced this before..
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Re: i wanted recovery a pendrive but i found a microSD

April 19th, 2012, 15:15

that is new to me. I would try and and unsolder the Microsd and see if it will read in a microsd reader. you may get lucky, but that is definitely odd

Re: i wanted recovery a pendrive but i found a microSD

April 19th, 2012, 15:17

in addition, if you do unsolder it, can you take a pick of how ti was soldered to the board, i am curious. Micro Sd has its own built in controller, plus there is the controller chip on the circuit board... soooo odd

Re: i wanted recovery a pendrive but i found a microSD

April 19th, 2012, 15:59

Hot air + looots of IR preheat from bottom is the way to go. Just check if it is superglued or epoxied there first
I guess it was soldered as any other SMD component - other guess is - it was bridged with wires, then bent down and glued - the third one is with push-up pins that got soldered to both sides.

Re: i wanted recovery a pendrive but i found a microSD

April 19th, 2012, 16:01

AzureSky wrote:Just check if it is superglued or epoxied there first


sure it is superglued or epoxied from all sides.

Re: i wanted recovery a pendrive but i found a microSD

April 19th, 2012, 16:39

Well - some SMD components are glued there by heat resistant compound - that is to prevent them from falling off during pre-heat and re-flow. That can be pain if you find it out when you are applying more heat to the chip, thinking it is an issue of too low-temperature to melt the solder and instead you are just burning the chip.

Re: i wanted recovery a pendrive but i found a microSD

April 20th, 2012, 3:30

:shock: :shock:

First time I see this too.

Can you update us on details when you de-solder it?

Re: i wanted recovery a pendrive but i found a microSD

April 20th, 2012, 3:47

northwind wrote::shock: :shock:

First time I see this too.

Can you update us on details when you de-solder it?


yes

Re: i wanted recovery a pendrive but i found a microSD

April 20th, 2012, 6:10

i removed the micro SD cleaned contacts but it's not recognized. also i noticed on pcb this microSD was soldered not by normal contacts as far see in picture.
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Re: i wanted recovery a pendrive but i found a microSD

April 20th, 2012, 11:17

Could you take a pic of the pcb with the microSD unsoldered?

Just curious.

Thanks!

Re: i wanted recovery a pendrive but i found a microSD

April 20th, 2012, 12:37

Here's a pic of one we had in a while ago...
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Re: i wanted recovery a pendrive but i found a microSD

April 20th, 2012, 12:57

Sean, do you unsolder these the usual way?

Re: i wanted recovery a pendrive but i found a microSD

April 20th, 2012, 13:48

Yeah.

Infrared preheater and a little hot air.

Re: i wanted recovery a pendrive but i found a microSD

April 20th, 2012, 13:50

did u read microSD & get data back? mine microSD is not readable, sad.

Re: i wanted recovery a pendrive but i found a microSD

April 21st, 2012, 4:01

Nope, micro SD is dead.

Could possibly use wire adaptor with Soft Center reader to connect to those contact points on the back (once the pinouts are found) but clients budget didn't stretch to that.

Re: i wanted recovery a pendrive but i found a microSD

April 21st, 2012, 5:15

same situation here, after my quote for a wire adaptor recovery, customer gave up.

Re: i wanted recovery a pendrive but i found a microSD

April 22nd, 2012, 0:18

pcimage wrote:Nope, micro SD is dead.

Could possibly use wire adaptor with Soft Center reader to connect to those contact points on the back (once the pinouts are found) but clients budget didn't stretch to that.



Sean ,
two controllers :?:

Re: i wanted recovery a pendrive but i found a microSD

May 5th, 2012, 4:32

Sean's case can you recovery if MSD is fine. do you double check it? make sure it's dead?
positivebit's case don't have solution now. had to take time and money to make it.
i am interesting in it. please feel free to contact me if some one have special controller working on.
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