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I have a problem with starting an Acer One 10 tablet that is running Windows 10. After powering on the tablet, Acer logo shows up and I am redirected to EFI Shell.
I am unable to type anything though, since the keyboard seems either not to respond or not to work at all. I plan to connect another external keyboard via MicroUSB and see if that works but I currently ave no access to USB OTG to make this happen.
I fail to get any reaction from touchscreen either. I have been able to enter BIOS by pressing volume buttons when powering on:
But since the keyboard is not responding, I have no way of selecting anything there and I am not sure whether it would help anyway.
My current course of action is to get USB OTG and try another external keyboard and if that does not work, boot the tablet from USB and reinstall Windows. Is there anything else I can do in this situation? If not, since I have no experience with Windows Tablets (this one belongs to my father) - is there a specific Windows image I should boot and how do I find out which?
Thanks.
Does your motherboard have the old PS/2 connectors? If so, you will need to use those. – LPChip – 2017-09-03T14:25:17.503
@LPChip Hmm, I don't think so. I did not even know these were used on tablets at all. From what I can see, there are only MIcroUSB and HDMI ports + the external keyboard dock. – Alexander Rossa – 2017-09-03T14:39:43.213
Ah, I missed that this is a tablet. :P – LPChip – 2017-09-03T16:16:20.570
The only reason it'd default to the EFI shell on boot would either be that something's stuck, triggering the event to launch the shell, or your OS/bootloader has been corrupted. Until you can connect a physical keyboard to the tablet, I'd say you're dead in the water. – Dooley_labs – 2017-09-07T21:11:10.717
You boot into the EFI shell when no other boot device is available, or if you BIOS is set to boot into it first (not possible on all tablets). Your problems are maybe worst than you think. – harrymc – 2017-09-08T16:42:38.037
@Dooley_labs Yes, I think the keyboard is quite a bottleneck. I am a bit worried that no keyboard will actually work in the end though. – Alexander Rossa – 2017-09-08T23:32:58.540
@harrymc Yes, I am aware that these problems are probably pretty serious. I am not very well versed into this OS stuff - could you expand a bit on what that would mean? Does that mean there is no version of Android at all in the tablet? How could that happen? Damaged hard-disk/ROM? – Alexander Rossa – 2017-09-08T23:33:01.383
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It's possible that the SSD was damaged, or maybe another less serious problem. Some SSDs are very fragile. The only way to be sure is to get a USB keyboard and try to enter the command
– harrymc – 2017-09-09T07:09:24.860exit
in the EFI shell, or to boot directly as explained in this link. Changing the boot order in the BIOS might show what is available and for that you only need a mouse. If the tablet is still under warranty - use it now.