Dell Inspiron 17R 5737 dead after reverse polarity

[khalil305]

hello,

i broke my AC adopter and used a similar one with 19.5 V and lower Amp than what was on the original adopter. unfortunately it had reverse polarity and as i plugged it in, my laptop died immediately. 

there was no smell or any thing but it wont turn on anymore. i have replaced the battery and also got a new AC adopter  but nothing works. it's completely dead

will replacing the power supply fix the issue or is the motherboard fried?

i'v searched the internet for a solution, some say just replace the power supply some suggest motherboard components need to be replaced. i'm not sure what to do.

thank you for your assistance.

[JOcean]

Without a doubt a component or components on the motherboard have been damaged. Possibly a diode or fuse (they look like solid state components). The following links will explain more.

https://forums.tomsguide.com/threads/i-used-the-wrong-ac-adapter-for-my-laptop-y470p-now-its-dead-an...

https://www.dslreports.com/forum/r9797618-Help-Plugged-in-my-laptop-with-reverse-polarity

https://www.ifixit.com/Answers/View/417805/Reversed+Polarity+on+DC+Power+Supply.+Can+I+replace+Fuse-...