Something interesting?

[njking25]

So after flashing the new lollipop update I found myself stuck in a bootloop unable to get into the android operating system at all. I used flashboot and the intel flash tool to try and restore to an older ROM. It forze at 91% with an "error:unable to mount /data" I then used the root tool to try and sideload and install the update.zip from adb shell. No luck. When I rebooted I got to a strange efi menu. Looked around, and it gives me the option to install with with windows?

Anyone have any ideas. I'm waiting for radio shack to open, its the only local place that sells USB otg cables locally.

 

[njking25]

Here are the photos

 

[workdowg]

Here are the photos

So after flashing the new lollipop update I found myself stuck in a bootloop unable to get into the android operating system at all. I used flashboot and the intel flash tool to try and restore to an older ROM. It forze at 91% with an "error:unable to mount /data" I then used the root tool to try and sideload and install the update.zip from adb shell. No luck. When I rebooted I got to a strange efi menu. Looked around, and it gives me the option to install with with windows?

Anyone have any ideas. I'm waiting for radio shack to open, its the only local place that sells USB otg cables locally.

That is something interesting. It is asking which os to boot to, not install.
I'd like to know how you got into the bios? I am looking for a way to install Linux....

Sent from my YOGA Tablet 2-1050F using Tapatalk

 

[workdowg]

Here are the photos

Did you get this figured out?

 

[dreamnewbie]

I can see "fast boot" enabled. Have You tried to switch it off? any other menu is displayed?
Have You tried to "power+vol down" on it?

 

[zach181]

I've tried a few ways to get into the BIOS shown... all failed.

Maybe the only way to trigger the BIOS to show is to fully wipe/format the internal storage so the BIOS can't pick up droidboot or anything else. Quite risky though if it isn't the way.

I'm in no way telling anyone to do this and I have not tried it myself. I'd be curious to hear from any advanced users if they have ever completely wiped the internal memory and what options would be available to restore if things did go wrong.

 

[workdowg]

I've tried a few ways to get into the BIOS shown... all failed.

Maybe the only way to trigger the BIOS to show is to fully wipe/format the internal storage so the BIOS can't pick up droidboot or anything else. Quite risky though if it isn't the way.

I'm in no way telling anyone to do this and I have not tried it myself. I'd be curious to hear from any advanced users if they have ever completely wiped the internal memory and what options would be available to restore if things did go wrong.

This guy seems to have stumbled on it also. I flashed the stock kk firmware and I am trying to do it but can't get Lollipop update to work. But it won't boot after it fails so I am reflashing KK again.
http://xdaforums.com/showpost.php?p=60490907&postcount=578

 

[zach181]

Thanks for the link workdowg,

I'm still trying to work out how they did it. Could do with a step by step and whatever files needed uploaded and linked to. Also the bit about not using windows startup programs.

 

[workdowg]

Thanks for the link workdowg,

I'm still trying to work out how they did it. Could do with a step by step and whatever files needed uploaded and linked to. Also the bit about not using windows startup programs.

If you try it do let me know. I need to get into the bios to get started on a dual boot to Linux on this bad boy...

 

[zach181]

I will let you know.

I just asked for the OP to clarify a few things before I go ahead. I may try Linux first with Windows 8/10 being the final install.

 

[dreamnewbie]

So... conclusion. we have to damage firmware to boot efi...

If we could swap img file before upload to tab (during this 25 second wait) we could make windows installation possible. Am i right?

 

[workdowg]

I will let you know.

I just asked for the OP to clarify a few things before I go ahead. I may try Linux first with Windows 8/10 being the final install.

@social-design-concepts suggested we should try to change the boot order using efibootmgr. I've been communicating with him. Here is the post in the Venue thread... http://xdaforums.com/show...postcount=2083

 

[zach181]

Links giving 404

 

[workdowg]

Links giving 404

here it is again... http://xdaforums.com/showpost.php?p=61108700&postcount=2083 it got truncated.

 

[zach181]

Thanks workdowg.

It seems it's not as clear cut as first thought. Mind you, I didn't expect it to be. I did try a HP keyboard with OTG in Android and that got picked up ok (No lights on keyboard)

I'm a bit in the same mind as Social-Design. I'd rather have a definite way to restore Android from a totally blank internal drive before I have a go. Just up to page 214 in the thread so it may be covered later.

 

[Yosha1]

UEFI soft brick?

Hi guys,

I accidentely tried to use the firmware on my 1050 as described in this thread. I can indeed load the UEFI BIOS with all its settings (even though most don't do anything). But unfortunately, I cannot load any OS. I always get the error "EFI Harddrive failed" - meaning it cannot boot fomr hardrive.

I have used an externally powered USB-HUB with mouse, keyboard and USB-Stick and connected to the 1050 via OTG-cable. If the stick is bootabnle with GPT x64 then it will boot from that stick. All 64bit windows versions that I tried failed to install with "ACPI_BIOS_ERROR". 32bit windows would not start, because the GPT is 32bit and the BIOS does not recognise it.

The best success I had so far was to copy a ISO from android-x86 on the usb stick. It will boot in live-mode from the USB. Not so suprisignly, mouse and keyboard are working, touch isn't. WiFI is working and the SD card is detected. I tried to install this version of android on the harddrive which works, but it installs the EFI GRUB bootloader which is not recognised by the BIOS.

I can also access the UEFI shell.

Unfortunately, I am running a bit out of ideas of what to do in order to get a normal system (or firmware) back. ADB-drivers obviously don't work (the Intel SoC driver is installed as well), so I cannot use the Phone Flash Tool.

Any ideas would be greatly appreciated.

 

[social-design-concepts]

Hi guys,

I accidentely tried to use the firmware on my 1050 as described in this thread. I can indeed load the UEFI BIOS with all its settings (even though most don't do anything). But unfortunately, I cannot load any OS. I always get the error "EFI Harddrive failed" - meaning it cannot boot fomr hardrive.

I have used an externally powered USB-HUB with mouse, keyboard and USB-Stick and connected to the 1050 via OTG-cable. If the stick is bootabnle with GPT x64 then it will boot from that stick. All 64bit windows versions that I tried failed to install with "ACPI_BIOS_ERROR". 32bit windows would not start, because the GPT is 32bit and the BIOS does not recognise it.

The best success I had so far was to copy a ISO from android-x86 on the usb stick. It will boot in live-mode from the USB. Not so suprisignly, mouse and keyboard are working, touch isn't. WiFI is working and the SD card is detected. I tried to install this version of android on the harddrive which works, but it installs the EFI GRUB bootloader which is not recognised by the BIOS.

I can also access the UEFI shell.

Unfortunately, I am running a bit out of ideas of what to do in order to get a normal system (or firmware) back. ADB-drivers obviously don't work (the Intel SoC driver is installed as well), so I cannot use the Phone Flash Tool.

Any ideas would be greatly appreciated.

You can get it to boot from USB? Get someone with to use tethered twrp and get a backup of the esp and fastboot partitions.

I have 2 things you can try if the goal is getting back to booting stock Android.

 

[dreamnewbie]

The best success I had so far was to copy a ISO from android-x86 on the usb stick. It will boot in live-mode from the USB. Not so suprisignly, mouse and keyboard are working, touch isn't. WiFI is working and the SD card is detected. I tried to install this version of android on the harddrive which works, but it installs the EFI GRUB bootloader which is not recognised by the BIOS.

I can also access the UEFI shell.

Any ideas would be greatly appreciated.

Have You tried booting any x64 linux iso from flash drive?

 

[Yosha1]

Have You tried booting any x64 linux iso from flash drive?

Thank you for your fast reply.

I just tried that with an Ubuntu Desktop Distro. It boots up from teh USB drive, keyboard and mouse are present. Wifi, sound, touch don't work but I can see the internal Harddrive and the sdcard in the file exsplorer.

 

[social-design-concepts]

Thank you for your fast reply.

I just tried that with an Ubuntu Desktop Distro. It boots up from teh USB drive, keyboard and mouse are present. Wifi, sound, touch don't work but I can see the internal Harddrive and the sdcard in the file exsplorer.

extract and dd this to a usb drive and see if it is able to boot it View attachment 3415895 if it successfully boots replace the fastboot.img thats on the thumbrive with one for your devices and see if it boots. if your fastboot.img is named droidboot.img rename it to fastboot.img.

If you can successfully get your devices droidboot/fastboot.img to load you can then disconnect the usb-otg cable and reconnect it to your PC and use the phone flash tools to restore your device completely.