Hi!
First of all, sorry if this sounds stupid...
I'm trying to open the bootloader but I'm stuck. I don't know how to select "Confirm". I can't see any buttons and wireless controller doesn't work.
Any help? Thanks for your time.
Nvidia Shield TV Pro (2019)
EDIT: Ok, I found it.
Plugging an USB keyboard BEFORE entering bootloader mode.
Afterwards, unplugging it and using an USB mouse instead into TWRP recovery.
Related
I never thought I'd have to go as far as create a thread pleading for help, but after a lot of Google searching I still cannot find someone with the same problem.
I will explain:
I am trying to use fastboot, which I (don't think) I've any problems with in the past.
I can issue commands in normal use via adb from my PC fine.
I can adb reboot bootloader ok, and can get into the bootloader any other way just fine.
I can use the volume keys to navigate the options in the bootloader just fine.
The problem comes with I connect the USB to my PC whilst in fastboot.
Windows fails to recognise the device, and says it may have malfunctioned.
It won't allow me to reinstall the drivers successfully it seems, and seems to have a problem with the USB Host Controller too.
Fastboot immediately freezes, and I'm unable to even navigate using the volume keys, let alone issue commands from my PC.
My question then is twofold:
1. Is there likely to be a problem with the USB port on my device, or some sort of bootloader corruption?
2. Is it possible to return to stock Android without using fastboot?
Finally, I would like to stress that I've seen plenty of similar looking threads, but it seemed that the posters of those threads merely had problems getting in to the bootloader or recovery.
I haven't got that problem, the problem only arises when a USB is connected to the PC, the tablet becomes unresponsive only in bootloader mode.
If anyone has any advice to offer at all, I'd greatly appreciate it.
Additionally, if the problem is solved, I will post a detailed set of instructions in case anybody else should encounter a similar problem in the future.
__________________________________________________________
Update for anyone who happens to read this in the future:
[This guide](http://forums.androidcentral.com/ne...3923-guide-nexus-4-factory-image-restore.html) has a useful FAQ at the bottom which helped a little.
I think I managed to determine the problem was likely a duff usb connection, either on my Nexus or on my computer.
I was able to just about hobble through by keeping the cable in the same place.
In case it wasn't just this, this is what I did:
1. Flashed TWRP recovery from their app.
Went into bootloader and failed to do anything
2. Flashed CWM recovery.
Managed to be recognised in fastboot.
I still had problems with my Nexus 'malfunctioning' -- possible the USB.
I updated the drivers using the ones from [this thread](http://forum.xda-developers.com/showthread.php?t=2588979).
3. Flashed a new bootloader image immediately (there were rumours that a dodgy version had been released accidentally). [This](http://www.androidfilehost.com/?fid=23060877489996594) is the one I used.
Then I managed to get the stock ROM flashed, and the bootloader locked up again.
Fastboot freezes whenever USB plugged in
I'm having a problem with this step...
1. When booting to fastboot with any sort of USB plugged in, your buttons on the side may not respond. In this case, pull the cable and hold down power + Vol Down until it reboots. The buttons should now respond and you can plug USB back in if you wish.
the problem is that whenever the USB cable is plugged in, the buttons don't navigate through the options.
however, whenever the usb is NOT plugged in (and rebooted bootloader) the button work just fine.
I don't have a recovery currently installed.
The issue is not with drivers on the computer,
happens while usb plugged in both windows and linux or simply just plugged into a wall outlet to charge and with different USB cables.
I need to load fastboot but i'm having this issue. Is the device bricked without hope?
any help would be appreciated.
Nexus 7 2012 Model (grouper)
Boatloader version 3.34
Hello, I bought a tablet that had a broken windows. It just boots up to a screen asking for recovery media. Unfortunately when I plugged in a usb keyboard to access bios I decided to fiddle with the usb settings, and result, now usb devices are not recognized I was trying to find a way to make a usb hub to work in order to have a keyboard attached simultaneously with a usb stick, to install windows.
Now I am stuck with this, since I cant find a way to reset the bios, is there anything that can be done since no key combination will reset this and no reset button exists on this tab?
can anybody help out on this matter or is the device a lost cause? Somehow I can't believe, only things I need is a bios reset and a usb hub that allows me to use a bootable usb stick and keyboard for install?
I try update my nvidia shield tv 2017 but now the System bootloop on Android circles animation (dont start box).
- I try fastboot with Controller but dont work (many, many times)
- I try conect to pc but dont connect device with fastboot
bricked bootloader??
I dont have solutions.... please help.
Sorry my english
Try un plugging the power then plug a USB keyboard in and hold the A and B key and then plug the power back in.
same problem for 3 days, can not enter fastboot mode. my shield is in bootloop
Shot in the dark, but have you tried different USB ports on the computer? I know in my case, some otherwise working ports will not work with the shield. Seems to be very fussy when it comes to which ports I choose. None of my front ports work on this desktop, I have to plug into rear ports in order for my computer and shield to see each other.
Also be sure to use the original cable that came with the shield.
Also make sure USB debugging is on.
Any fix ? Same problem
Have you tried "adb reboot bootloader" in command prompt when the android logo is looping?
I have no Android logo i have no os just twrp and twrp with no access adb and fastboot command dont work on NVIDIA logo
If you put lineage os on a usb stick can twrp read the usb stick? If so, you can install the zip file of lineage with gapps...once that's installed and booted up, you can enable usb debugging in the developers options and fastboot and adb should work again.
After flash the OS downloaded for official website, the box stuck at the first screen, I think I should wipe data to enter into the system, but without bootloader interface, I can do nothing!
Then I check the forum, find some way like below:
(1) Unplug SHIELD TV.
(2) Connect SHIELD controller to SHIELD TV with a USB cable (use port closest to HDMI).
(3) While holding the A and B buttons at the same time, connect power to SHIELD TV.
I tried many times, and press A and B buttons at different moments, but it did not work at all!
How can I get into bootloader mode?
Would someone help me to save my Shield Brick and tell me what to do?
Thank you very much!
Hello!
Have a look here: https://nvidiashieldzone.com/shield-android-tv/android-7-nougat/shield-tv-2017-root/
And proceed Step 1, Step 2 and Step 3 to 3.1.4 (Type “adb reboot bootloader” and hit enter. The Shield TV should reboot into the bootloader screen.)
Hello!
I have an iiyama TV (43" (109,22cm) iiyama ProLite LH4370UHB-B1) with android 9.0 pie (TV OS) installed. Something went wrong and the TV is now booting on every reboot automatically in Recover Mode. The problem is I cannot move inside the recovery mode. I cannot go up and down either I cannot select something. There is only one Power button on the TV, I was sure that this button must be for selecting, but no, doesn’t work either, also a USB keyboard connected on the USB port of the TV won’t let me select or move. Anyone an idea? Thank you!!