If your friend bought an adapter at BB and it was not a genuine Dell, then it probably would not be detected and not charge properly. If you know someone with a Dell, see if you can try their adapter. The only other possibilities would either be a bad DC jack on the laptop which would cause the same problem or a bad motherboard. Have a look at the DC jack. There is a pin in the middle and if it is bent or broken then the adapter would not be recognized. Now I assume you ran diagnostics to confirm the battery integrity. That is at boot when you see the Dell splash screen, start tapping F12. Choose diagnostics paying attention to the battery and adapter results.
One other thing to try. Disconnect the battery and unplug the adapter. Now press and hold the power button for 30 seconds. Then reconnect everything and try again.
JOcean
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October 21st, 2019 13:00
If your friend bought an adapter at BB and it was not a genuine Dell, then it probably would not be detected and not charge properly. If you know someone with a Dell, see if you can try their adapter. The only other possibilities would either be a bad DC jack on the laptop which would cause the same problem or a bad motherboard. Have a look at the DC jack. There is a pin in the middle and if it is bent or broken then the adapter would not be recognized. Now I assume you ran diagnostics to confirm the battery integrity. That is at boot when you see the Dell splash screen, start tapping F12. Choose diagnostics paying attention to the battery and adapter results.
One other thing to try. Disconnect the battery and unplug the adapter. Now press and hold the power button for 30 seconds. Then reconnect everything and try again.