Today i connected my laptop to its power adapter (which has been down for past few weeks due to hdd failure) to charge it before i could change the drive.
When i turn on the AC power, the power light on the front panel goes solid bright for a few seconds then starts blinking. I know my battery was 63% damaged before laptop crashed but it worked fine.
I read a hard reset after detaching the battery would solve it but to no avail.
I have HP DV4-2126TX