I finally figured it out! you have to tell bob you want to order something (I chose nuclear device) and while he is looking for it you go and open the toolbox and get the tools to open the panel, then you talk to granps again and select plan C and he will go to drink some water, you have to use the taser with the control panel so the water sends him flying and then you go to the bank and save him, and he will give you the money for the hacking machine
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