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We are small computer repair shop. We just replaced cracked screen on Acer Predator Helios 300, PH315-52-710B. After replacing screen, it would not power on, but the LED light at the A/C adapter port on laptop was orange and then turned blue.
I found some instruction to unplug internal battery (not CMOS) to do a power reset. After doing this, the LED light at the A/C adapter port does not come on at all.
We have tried all of the following, and still no power:
1. Put original cracked screen back in
2. Unplugged internal battery
3. Unplugged CMOS battery
4. Removed and re-seated memory
5. Unplugged Hard Drive
6. Tested power adapter
It seems that this is a common issue, loss of power, black screen on Acer Predator Helios 300. In all our years of replacing LCD screens, we have never lost power on a unit. Any ideas you have for us to try are much appreciated.