Hello, i'm repairing an Asus N550L laptop from a friend of mine. Now, the battery was dead, i bought a known good and brand new laptop Battery. I have experience with circuit boards and IC's, and i found out that the BMS (battery management circuit) from the dead battery is broken. And the trigger pin wasn't working so it couldn't process the signal from the laptop in order to supply voltage and turn it on. So i was only able to turn it on WHILE the charger was plugged in. Now, with the new battery, i'm able to turn it on without charger connected.
Its not the DCIN jack. I checked that and resoldered just to make sure the connections are solid, no improvements where made.
But here is the problem, it says its charging, but technically, it isn't. How is this possible? The charging brick is known good btw, the battery too. Could this be software? If not, what component on the circuit board should i be looking for, the SMC? I really need help as this laptop is pretty expensive and we already wasted good money on it. So any help is welcome.
I tried the 60 sec button press without battery trick, did not help and i expected that as most basic things doesn't work infortunately.
I'm capable if doing board repair and trouble shoot but can't find any info about this computer so i need help.
Thanks
Edit: do i need to update BIOS? It doesn't charge even when turned OFF. The charging LED stays steady orange.
And i really need help.
Its not the DCIN jack. I checked that and resoldered just to make sure the connections are solid, no improvements where made.
But here is the problem, it says its charging, but technically, it isn't. How is this possible? The charging brick is known good btw, the battery too. Could this be software? If not, what component on the circuit board should i be looking for, the SMC? I really need help as this laptop is pretty expensive and we already wasted good money on it. So any help is welcome.
I tried the 60 sec button press without battery trick, did not help and i expected that as most basic things doesn't work infortunately.
I'm capable if doing board repair and trouble shoot but can't find any info about this computer so i need help.
Thanks
Edit: do i need to update BIOS? It doesn't charge even when turned OFF. The charging LED stays steady orange.
And i really need help.