Mineralman
Data Recovery Noob
Posts: 4
Joined: Tue Dec 29, 2020 2:15 pm

Data recovery from a GPS

Tue Dec 29, 2020 4:01 pm

Hello, I am new to this forum, I am an electronics technician and my problem is beyond my skills, a friend brought me a garmin GPS, model: GPSmap 76CSx he had the unfortunate idea of connecting his data cable to a charger and the smoke came out of the device, after checking, the terminals of the capacitor that goes to the microprossessor are short-circuited which suggests that the prossessor is burnt, I think there are two solutions left, the first is to remove the memory and put it back in another gps of the same model, or cover the data with a special tool, but I am listening to your advice in order to find a solution because the data is very important, thank you


Flash memory datasheet: http://www.datasheet.hk/search.php?part ... stype=part

some pictures:

https://drive.google.com/file/d/1F7up5M ... sp=sharing

https://drive.google.com/file/d/19YMNL4 ... sp=sharing

https://drive.google.com/file/d/1AB-Z3F ... sp=sharing

https://drive.google.com/file/d/1OUnN8c ... sp=sharing

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pclab
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Data recovery from a GPS

Sat Jan 02, 2021 10:22 am

Maybe it's possible to do a recovery of the NAND.
The pictures you posted are not visible though, no access to them.
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Mineralman
Data Recovery Noob
Posts: 4
Joined: Tue Dec 29, 2020 2:15 pm

Data recovery from a GPS

Tue Jan 05, 2021 1:25 pm

Oh sorry, the pictures are public now, you can see them.

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pclab
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Data recovery from a GPS

Thu Jan 07, 2021 3:09 am

Yeah that should be the one.
Attached is the datasheet.
You need a bga56 reader.
Attachments
GE28F128L18B85_to_RD48F4000L0ZTQ0.pdf
(1.29 MiB) Downloaded 19 times
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Mineralman
Data Recovery Noob
Posts: 4
Joined: Tue Dec 29, 2020 2:15 pm

Data recovery from a GPS

Tue Jan 12, 2021 10:51 am

Based on its rectangular shape and on the data sheet, it seems to me that it is a bga79, so the solution would be to unsolder it then put it in the bga79 socket and read it ? but which tool should I use?


BGA79 socket: https://www.sheetmfgr.com/index.php?mai ... _id=436597
555.jpg

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pclab
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Data recovery from a GPS

Wed Jan 13, 2021 5:39 pm

You need a flash tool: Flash Extractor, PC3000 Flash, VNR...
Or you can try to outsource it...
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Mineralman
Data Recovery Noob
Posts: 4
Joined: Tue Dec 29, 2020 2:15 pm

Data recovery from a GPS

Sat Jan 16, 2021 6:52 pm

Thank you Pclab for your help, i wil try the solutions, my friend will be happy to recover his data.

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