To a question asked about a Toshiba BIOS password reset problem I read this answer
From an electronic point-of-view, it is possible, but you will need to take the main board out. Locate the BIOS chip, turn the main board over. Pin one on the chip will have a square solder point. Remove the BIOS battery, connect pin 1 to the highest numbered pin with a wire. This should be the same type of wire used to connect a CPU fan, so that the resistance is low enough.
Connect the main board to the PSU. Plug it in and power it up. A few seconds should be enough. This will short out the BIOS chip and remove all settings from the COS, putting it back to factory settings and thus removing all passwords including TPM password security.
This is, of course, not for the faint hearted. My advice comes from experience. I have done this many times, but it carries no warranty.
If you can reach both sides of the battery, you can also drain it using a resistor or something, instead of desoldering anything. Standard practice learned from working as a tech since lots of people forget to leave their bios passwords, they are expecting tech guys to have magic fingers anyway - and we do.
If you can reach both sides of the battery, you can also drain it using a resistor or something, instead of desoldering anything. Standard practice learned from working as a tech since lots of people forget to leave their bios passwords, they are expecting tech guys to have magic fingers anyway - and we do.
I beg your pardon, but there was no mention of shorting the battery or desoldering anything in the given method/approach ? , does this mean that shorting the pins on the IC is meant to drain the smallish battery on the motherboard of the laptop?
But in the provided method the battery is removed beforehand …
… or maybe instead of removing the battery draining it will be the same?
On the specific model/series the battery seems easily removable
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