ASUS UX390UA not starting
Hi all,
I have come across and issue I don’t seem to be able to figure out.
My laptop refuses to start, when the power button is pressed absolutely nothing happens. The issue appeared after I closed the lid to put it to sleep, when I tried to wake it.
The laptop has had it motherboard change under warranty twice but the the issue was caused by i the laptop would at least had LED flashing, which is not the case at the moment.
So far, I have tried:
-Battery disconnect and reconnect;
-Battery disconnected, power supply plugged in;
-Battery disconnected and power switch held for 30s+, then power supply plugged;
-New power supply.
None of the above has worked so far.
If anyone has an idea that could save this laptop, I am all ears.
Update (05/14/2020)
Hi ,
Thanks for the answers.
@aactech: that has been done with no success. No light at all and the fan doesn’t kick in.
@jayeff: -I have tried holding the power button with power connected for 10s+ a few time already and that doesn’t solve it.
-The battery was charged, not sure if it was charging though. As you mentionned the USB-C seems to be the weak point as on every laptop relying just on this. Unfortunately I don’t have a multimeter available at the moment, but I managed to find a spare battery that I should get this week end which will hopefully narrow the issue to a few possiblity, ie old battery dead and/or no charge going through the USB-C?
Update (05/16/2020)
So a quick update, I got a second battery and a voltmetre.
Both battery are at 7.6V for a 7.7B battery, so that’s pretty good.
I have checked continuity from the usb-c to the battery plug on the motherboard: there is continuity on the ground but nothing on the voltage ones.
When the power supply is pluged on the motherboard, there is 0.83V at the battery plug terminals
Es esta una buena pregunta?
7 comentarios
Hey!
im having the exact same isssue. I’ve also been trying what you did with no success. Did you solve it?
tjanks
- de Popinfresh
Does anyone know if there is a CMOS battery? i cant seem to find one, but i would like to remove it.
- de Popinfresh
Hi Popinfresh,
No I haven’t solved it, I don’t think the laptop was worth the effort. I had the motherboard failing 2 times under warranty and it feels like it was a similar issue again, so I just got another laptop. It might come back to it one day though.
For the CMOs battery I don’t think there is one on this laptop
- de Baptiste Wust
thanks
i took the whole thing apart, it didnt make a difference. no CMOs battery either. my best guess is that the usb-c port has failed / damaged. i cant get the multi-meter to show a voltage. i guess i'll keep it for parts?
thanks for your help
- de Popinfresh
I have the same issue. my solution was to press + hold the power for more than 40 seconds until the charging led indicator at the side disappear. I unplug the cable and turned the cable the other way around (maybe the charging wasn't right) and plug back in. I pressed + held the power again, then caps lock LIGHT turned on and wa-lah! it turned on. I hope this might help
- de myk
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