AC adapter MOD ?

[primoz1]

I got HP AC power for laptop and work on DELL ok, but not charge battery and when I try to upgrade BIOS got notice like "change for DELL AC power" and stop BIOS upgrade program, for this dell i cant find USB version BIOS file, and maybe there will be the same problem.

I see one time "dont remeber which web site" how guy make modification on HP AC power to charge DELL battery.

Is anyone know more about this ?

Thank you.

[spidey]

Re: AC adapter MOD ?

i work with lab type power supply, and if i connect it directly to dell or hp i have similar problems. But, i use around 120-180k resistor connecting between middle pin and +19v and it works. But also in dell laptops bios, you can bypass ac adapter type errors.