PCB rom toshiba hard drive

[DRforensic]

Hi All, anybody know which one is the actual rom chip on the pcb I`m uploading?
it is running 1,5 Tb drive MQ01ubb150

Attachments

usb 3

[fzabkar]

IC602 is the usual circuit reference for the "ROM".

The way to distinguish between IC602 and IC606 it follow their pins back to their respective controllers. IC602's signal pins trace back to the Marvell MCU, whereas IC606's pins go to the bridge IC. This means that IC602 contains HDD firmware while IC606 contains bridge firmware.

[pcimage]

It is IC602 as fzabkar says.

[northwind]

Be careful with IC602, they are heat sensitive.

[hhddrec]

As northwind said, head sensitive, and hard to exchange.

[michael chiklis]

I think is very easy to unsolder it, expecially if you use gel flux.
If you use gel flux you can unsolder chips with lower heat (and have better result)

[DRforensic]

do you have the name or producer for gel flux? I can only find in liquid. thanks

[michael chiklis]

I use Amtech RMA-223-UV Flux Paste 10cc:
http://www.drivestar.biz/amtech-rma223u ... fi5hon4r87

You can find it also on Aliexpress:
http://www.aliexpress.com/store/product ... 70617.html

[AesEbu]

More expensive, you have ChipQuik, incredible with nand chip.

http://fr.farnell.com/chip-quik/smd1/ki ... dp/1850214

You also can use heat-resistant scotch tape, to avoid 1mm resistors or condensators fly away with hot air.

http://www.drivestar.biz/bga-kapton-tap ... p-411.html