crwdns2933423:0crwdne2933423:0

Why my laptop restart itself and display cmos reset (502) continuousl?

My laptop keep restarting and display cmos reset 502, but it is refurbished and the cmos removed full but before it worked well in last 6 months, there is no place of cmos what can i do??

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0

crwdns2933313:01crwdne2933313:0

Turn it off, hold power button if necessary to force it off.

Turn it on while tapping F10 until you get into BIOS.

From there, try save and exit (usually also F10)

If still no good, repeat those steps to get into BIOS but select to restore defaults or restore BIOS defaults, in main or exit menu then save and exit - hope this helps

crwdns2934105:0crwdne2934105:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0

crwdns2934229:0crwdne2934229:0

Alcene crwdns2934231:0crwdne2934231:0
crwdns2936625:0crwdne2936625:0:

crwdns2936751:024crwdne2936751:0 0

crwdns2936753:07crwdne2936753:0 3

crwdns2936753:030crwdne2936753:0 21

crwdns2942667:0crwdne2942667:0 21