I took my laptop motherboard to a technician to replace the cmos battery holder because for some reason it had been broken by the previous owner. As he desoldered the old holder, he removed the solder from the motherboard itself of the positive pole of the battery holder, leaving no place to re-solder the new holder. Is there a fix for this? When I reproached the technician he told me to go look for a another place on the motherboard where 3 volts enter and make a bypass. Does this make any sense?