Acer Aspire E1-521 Acer Aspire E1-521 Notebook Service Guide - Page 73

3. Press and hold and , and then plug the AC adapter. Continue pressing and . Plug in! Figure 2:53. Hold Down + and Plug AC Adapter 4. As and keys are pressed, press the Power button to turn on the target machine. Wait for 3~5 seconds to make sure the system fan is on full speed before releasing and keys. Power On! Figure 2:54. Press the Power Button 5. Wait for 3~5 minutes for the system to complete the crisis operation. NOTE: If the waiting time takes more than 5 minutes, the system recovery might have failed. Please check the following: • BIOS filename (i.e. BIOS.fd) is correct on the USB flash disk. • Pull out the AC adapter and remove the battery to reset the embedded controller status • Repeat steps 1~5. System Utilities 2-32