Oldschool297 wrote:
How many W needs to get it done? And how long should i heat it up without damaging?
What tool did you get then? You don't set wattage, you aim for a
temperature that melts the solder. Now what best temperature is, seems to be topic of debate in some places and depends how fragile the chip is you're trying to remove. Basically debate is either high temps and short heating times vs. moderate temps but potentially longer heating times.
Assume around 220 Celsius melting temp for leaded solder, some of the heat you apply will dissipate into the board so you need more than that, ideally you preheat the board using a pre-heater I suppose. TBH I don't do hard drives so I have no idea how fragile this chip is. I'd say use somewhere between 350-400 degrees Celsius, low-moderate airflow so you do not blow away nearby components.
You might want to practice on some piece of crap board first.
Someone more experienced with this, PLEASE correct me if I'm wrong!
https://youtu.be/slpSo4fND98
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Joep -
http://www.disktuna.com - video & photo repair & recovery service