Repair manual

Inspiron 3500
Short circuit the 24c164 chip during booting. If this doesn’t work, desolder the backup battery and
waited 30 min and it erased the chip password.
Inspiron 1100/5100
24c168 or 24c164 Chip is on the bottom of the board near the B ram connector. Short circuit the red
marked legs during booting.
When Password is cleared, and it´s back again after starting again,
Try it again and again. If this don´t work, bridge must be left on the Chip.
Some I tested work without bridge, and some need it.
Inspiron 510m
location of the 24c04 eeprom is under a piece of black sheet under the pcmcia socket
next to the actual bios flash chip. Press power on then quickly short pins 3 and 6.