R3-471T at first takes too long to booth or show light and logo, took about 10 - 15 min.

mountain_jammer
mountain_jammer Member Posts: 5 New User
edited September 2023 in 2019 Archives
my R3-471T at first took 10 to 15 min to show light and logo in the screen, flashing black screen before it booth up. Works fine if just put it on sleep. But now totally just flashing black for 3 days. no luck. anyone encountered this and solved?

Answers

  • JackE
    JackE ACE Posts: 45,098 Trailblazer
    Shut the laptop completely off. Then turn it back on and immediately press and hold the ALT key while tapping the F10. A recovery screen should appear as in the video below to reset the machine, Jack E/NJ


    Jack E/NJ

  • mountain_jammer
    mountain_jammer Member Posts: 5 New User
    already did, disconnected the battery, removed the cmos battery, can't get to light up the screen or to start the BIOS work.
  • JackE
    JackE ACE Posts: 45,098 Trailblazer
    Re-connect the CMOS coin cell & battery pack. Put the cover back on including all the screws. Re-connect the charger. Try to turn it back on and re-do the ALT+F10 cold boot reset. Jack E/NJ

    Jack E/NJ

  • mountain_jammer
    mountain_jammer Member Posts: 5 New User
    JackE said:
    Re-connect the CMOS coin cell & battery pack. Put the cover back on including all the screws. Re-connect the charger. Try to turn it back on and re-do the ALT+F10 cold boot reset. Jack E/NJ
    Still black screen...
    JackE said:
    Re-connect the CMOS coin cell & battery pack. Put the cover back on including all the screws. Re-connect the charger. Try to turn it back on and re-do the ALT+F10 cold boot reset. Jack E/NJ


  • JackE
    JackE ACE Posts: 45,098 Trailblazer
    Can you see the recovery screen to go through the reset procedure. Or is that just a black screen too? Jack E/NJ

    Jack E/NJ

  • mountain_jammer
    mountain_jammer Member Posts: 5 New User
    still no recovery screen, just a black screen..
  • topcat7736
    topcat7736 Member Posts: 98 Fixer WiFi Icon
    Try disconnecting it from the charger, remove the battery and remove the memory cards. Connect the charger and see if it powers up or if you can do a F2 into the BIOS.
  • JackE
    JackE ACE Posts: 45,098 Trailblazer
    >>>still no recovery screen, just a black screen>>>

    Do you see an HDMI TV screen? Jack E/NJ

    Jack E/NJ