Anyone have a link to a video showing how to use the power button to put this thing into fastboot/recovery?
I have a unresponsive unit that I want to flash. Seems like I can't get it into recovery but I'm not sure if I'm doing it correctly.
Here are my steps:
- Unplug everything from shield and unplug power from wall
- Plug in USB OTG cable from computer to shield tv (no lights from shield at this point)
- Plug in power cable to shield tv (power still unplugged from wall, no change to shield)
- Hold power button on shield tv for 3 seconds (nothing happens on shield, no lights or indication)
- Let go of power button and plug in power adapter to wall (light on shield turns on at this point)
- Nothing happens, no HDMI output and no indication from PC that a device is connected.
Any help?
FYI from nVidia website:
Code:
HW method:
- Disconnect power cable
- Insert USB OTG cable and make sure to connect other end to a host PC
- Connect power cable to SHIELD
- Quickly start pressing power button for ~3 seconds
- Do not hold the button and connect power supply afterwards
- HDMI TV should be always connected to SHIELD
I've booted mine over 100 times and only got in to work once, and can't reproduce the results. I have posted a similar thread, and couldn't find anything, but I'm terrified of something causing an unbootable device again because of this reason. If I find anything else to help out, I'll let you know, but my best advice is just keep trying, a lot. Don't quote me here, bit I think when I got it to boot sucessfully, I wasn't holding the button, I was tapping it for 3 seconds. Fairly quickly, but not super fast tapping. Some users report holding it works, but that didn't seem to for me.
Its a ***** to do with the hardware buttons but I have done it when I had a bootloop. If you can get it to boot normally its far easier to do it via adb "adb reboot bootloader". And if your rooted you can just use a sideloaded reboot manager app.
Yes doing it with a rebooting app or by connecting to a computer is the way to go.
baileyjr said:
Its a ***** to do with the hardware buttons but I have done it when I had a bootloop. If you can get it to boot normally its far easier to do it via adb "adb reboot bootloader". And if your rooted you can just use a sideloaded reboot manager app.
Click to expand...
Click to collapse
tailslol said:
Yes doing it with a rebooting app or by connecting to a computer is the way to go.
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Click to collapse
It's not responding, so they basically need to recover a soft brick, which is why I'm going to assume that they posted here. Someone needs to figure out a better trick, or they need a better method for any successor to this. Especially since it supports fastboot oem unlock.
kdb424 said:
It's not responding, so they basically need to recover a soft brick, which is why I'm going to assume that they posted here. Someone needs to figure out a better trick, or they need a better method for any successor to this. Especially since it supports fastboot oem unlock.
Click to expand...
Click to collapse
i hope nvidia put a timer trick or something to boot it in recovery mode ,maybie hold the button some secs.
maybie you will find some info in the shield documentation?
edit:found something i guess :
HW method:
- Disconnect power cable
- Insert USB OTG cable and make sure to connect other end to a host PC
- Connect power cable to SHIELD
- Quickly start pressing power button for ~3 seconds
- Do not hold the button and connect power supply afterwards
- HDMI TV should be always connected to SHIELD
Alternative method:
- Perform software shutdown on SHIELD by holding Power button for 10 seconds
- Connect USB OTG cable to SHIELD
- Start pressing power button for 3 seconds
- HDMI TV should be always connected to SHIELD
then you can use nvidia full recovery images to flash the shield to factory firmware.
tailslol said:
i hope nvidia put a timer trick or something to boot it in recovery mode ,maybie hold the button some secs.
maybie you will find some info in the shield documentation?
edit:found something i guess :
HW method:
- Disconnect power cable
- Insert USB OTG cable and make sure to connect other end to a host PC
- Connect power cable to SHIELD
- Quickly start pressing power button for ~3 seconds
- Do not hold the button and connect power supply afterwards
- HDMI TV should be always connected to SHIELD
Alternative method:
- Perform software shutdown on SHIELD by holding Power button for 10 seconds
- Connect USB OTG cable to SHIELD
- Start pressing power button for 3 seconds
- HDMI TV should be always connected to SHIELD
then you can use nvidia full recovery images to flash the shield to factory firmware.
Click to expand...
Click to collapse
Been through it all. Soft bricked my shield, and spent an hour trying that. Only got it to work once and stopped playing with it.
kdb424 said:
Been through it all. Soft bricked my shield, and spent an hour trying that. Only got it to work once and stopped playing with it.
Click to expand...
Click to collapse
I got it to work with the hardware (plugging in the power cable) method as mine was in a bootloop. I found it difficult because it hard to know exactly where the power button was because its not a raised button. Once I figured out the specific location of the power button I could do it reasonably consistently, like 1 in every 3 attempts. Of course your device may just be faulty unfortunately.
baileyjr said:
I got it to work with the hardware (plugging in the power cable) method as mine was in a bootloop. I found it difficult because it hard to know exactly where the power button was because its not a raised button. Once I figured out the specific location of the power button I could do it reasonably consistently, like 1 in every 3 attempts. Of course your device may just be faulty unfortunately.
Click to expand...
Click to collapse
Correct me if I'm wrong, but the power button is the whole thing. If I touch anywhere on the button at all, it'll put my shield to sleep, or wake it. That being said, I could have a faulty device as you have stated. I'd really like someone to put a video on youtube of a sucessfull run just to try to match it as close as possible, because 1/. runs is much better than my 1/100 or so runs.
No,it is just the nvidia logo,it is written in the manual and on the plastic cover when you un box it.
A user from another german forum got the right trick for timing, so it should work nearly every time to enter the bootloader :
HW method:
- Disconnect power cable
Click to expand...
Click to collapse
it's needed to make sure that the device is switched off
- Insert USB OTG cable and make sure to connect other end to a host PC
Click to expand...
Click to collapse
If you want only to test how to enter the bootloader, it's not mandantory atm.
- Connect power cable to SHIELD
- Now WAIT for ~2 seconds
Click to expand...
Click to collapse
Just count: 21...22.. if you don't know how long are ~2 seconds
Now press the power-button for ~6 seconds
Click to expand...
Click to collapse
The power-button is the sensor area with the NVIDIA Logo on the shield TV
- HDMI TV should be always connected to SHIELD
Click to expand...
Click to collapse
yes, otherwise you can't see anything.
Click to expand...
Click to collapse
Is there a visual cue for holding for 6 seconds? I noticed the NVIDIA splash screen appears right around 2.5-3 seconds, is that too late or right when I should begin holding power?
What worked for me was letting the unit sit unplugged WITHOUT the OTG cable for about 10 or 15 minutes. I then prepared myself to plug the ac adapter back in and almost immediately pressing the 'on' button thereafter. Got to the bootloader and was able to recover from there.
According to the Nvidia Shield information page, you plug the computer into the Shield's micro usb. Unplug the Shield's power. Wait like 10 seconds or so. Plug it back in. As soon as you see the light come on, wait for about 2 secs. Then hold down the power button till the bootloader comes up. It should come up within 6 secs, maybe sooner. That's it. Basically like what scorpio16v quoted. What Nvidia doesn't tell you, is that it doesn't have to be plugged into your computer. For example, I was able to get my Shield TV to bootloader using this built in hardware method by plugging it into my OG Shield via otg adapter on the micro usb cable.
Saw this on the Shield User Guide:
Reset Using NVIDIA Button on SHIELD
To access the fastboot menu:
1.
Turn off your SHIELD.
2.
Unplug the power cable from your SHIELD..
3.
Connect your SHIELD to your PC/Mac/Linux machine's micro USB port.
4.
Plug the power cable back into your SHIELD.
5.
Wait 2 seconds, and then hold the NVIDIA button for 5-6 seconds until you see the fastboot menu on the display.
Here's a link to the guide
http://support-shield.nvidia.com/android-tv-user-guide/index.htm#t=About_SHIELD.htm
I don't know about fastboot but to reboot into Recovery, simply attach a USB keyboard and press ALT +PRINT SCREEN + i (same as the Ouya)
dark_saian said:
I don't know about fastboot but to reboot into Recovery, simply attach a USB keyboard and press ALT +PRINT SCREEN + i (same as the Ouya)
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Click to collapse
good to know!
it seems it works on fire tv too!
Related
There is another way to access the download by pressing only two buttons. The method is as follows: With the phone off the USB cable is connected only to the mobile. Then tightened simultaneously volume - (minus) and the home key with one hand (which each managed as best they can) and the other is connected to the PC and the phone goes into download mode.
This way has been possible solved a semi-brick.
As my english is not very good here you have a link in spanish wher you can read the problem and the solution.
http://www.htcmania.com/showthread.php?t=195180
Cheers.
It isn't really a 3 button download mode anyway, the power is just used to get it powered to notice the volume- and menu are held. By plugging into the pc, you are triggering the power up event instead of using the power key (only if it is a true usb port..my laptop dock has a usb "charge" port that won't trigger the phone power on, it triggers the on screen battery like the ac adapter and only adb works to the phone on that port, not usb mounting or odin).
I actually go to recovery or download by holding menu and vol, and only briefly pressing the power, makes it easier to focus on making sure you hold the vol and menu keys without accidentally releasing too soon (about 5 secs is enough to hold them down as it powers up).
Sent from my GT-I9000 using XDA App
Ok, but in a phone semi-brick without possibilty to access to download mode with the combo of the three buttoms this worked. It's only a new way, only that. Was discovered by accident and i share with you if it can be useful.
Interesting if this can work where vol- + menu and then power doesn't! Good tip then if this is the case.
Sent from my GT-I9000 using XDA App
juanicoenfer said:
There is another way to access the download by pressing only two buttons. The method is as follows: With the phone off the USB cable is connected only to the mobile. Then tightened simultaneously volume - (minus) and the home key with one hand (which each managed as best they can) and the other is connected to the PC and the phone goes into download mode.
This way has been possible solved a semi-brick.
As my english is not very good here you have a link in spanish wher you can read the problem and the solution.
http://www.htcmania.com/showthread.php?t=195180
Cheers.
Click to expand...
Click to collapse
Has anyone able to do this successfully?
I think the guy who was able to get this done was using a USB jig with pin 4 & 5 shorted with 300+ transistors.
MY GOD THIS WORKS.
I am giving this thread 5 stars & recommending a sticky.
PS : I held Vol Dn + Menu leaving the USB cable plugged into the computer, Then inserted the other end into my phone.
Tested and it works !!!
Hold Volume down + Home button than plug usb in and your in download mode!!
Great
i tried that before it doesn't work for like 60%+ percent of people
because it's heavily dependent on the kind of USB port in use.
most computer don't have the correct USB port to work
and coincidentally, this will only work on people that already have working 3 buttons only
if their phones came shipped without the 3 buttons combo, it doesn't work.
However this is the standard method for all Galaxy S family that is not part of the I9000 line
so that means Nexus S, USA Vibrant, Verizon, and AT&T captivate... all the ones missing the hard button basically.
so the absolute most effective way is the Homemade USB JIG method
Works!
Great!
For the last 5 or 6 hours i've been pulling my hair out trying to get into fastboot on my Shield TV.... Everyone says it's all about timing... I say - 'pay no attention to what nVidia tell you to do to ENTER fastboot'.
I did this by accident and have been able to do it again and again on my 16gb and 500gb. The secret is - DON'T leave HDMI connected.
This should work on their other devices too.
1. Unplug EVERYTHING from your Shield.
2. Connect ADB cable
3. Turn power on (with cable disconnected)
4. Connect power cable to Shield
5. Count to 2 THEN hold down power button
6. Profit?
Feel free to connect HDMI now.
sloshedpuppie said:
For the last 5 or 6 hours i've been pulling my hair out trying to get into fastboot on my Shield TV.... Everyone says it's all about timing... I say - 'pay no attention to what nVidia tell you to do to ENTER fastboot'.
I did this by accident and have been able to do it again and again on my 16gb and 500gb. The secret is - DON'T leave HDMI connected.
This should work on their other devices too.
1. Unplug EVERYTHING from your Shield.
2. Connect ADB cable
3. Turn power on (with cable disconnected)
4. Connect power cable to Shield
5. Count to 2 THEN hold down power button
6. Profit?
Feel free to connect HDMI now.
Click to expand...
Click to collapse
I wish this was posted a month ago when I bricked my SATV (Shield Android TV) by updating to ROM 2.1. I could not get to recovery mode. It took 3 weeks to get my SATV replaced.
The replacement SATV could not get into recovery mode after OTA update to 2.1. I reverted to ROM 1.3 and do not have any recovery mode issue since.
This approach (disconnecting HDMI) could debrick many SATVs which could not boot to Android or other OS and failed recovery mode.
Thank you very much for the useful tips.
Hello,
I've potentially bricked my Shield TV and want to see if I can salvage it from it's current state.
What have I done to the device
I unlocked the bootloader
I opened the device and took out the HDD
I replace it with an SSD (which data i cloned from the HDD)
After that the Shield TV wouldn't boot up. I connected the old HDD to no avail. The HDD was working fine before.
I know can't get the device to boot up in fastboot. It still turns on, as indicated by the green led.
What have I tried
Cold booted the device (turn it off and seperate it from power for 15 - 20 minutes)
Used the controller (Pressing A+B) after inserting the power cable to get into fastboot. Controller rumbles. Nothing happens afterwards.
Hold the "power button" on the device for 5 - 6 sec to get into fastboot. Doesn't work, just turns the device off.
Connected the Shield TV to my PC and then try to enter fastboot. Device is detected by Windows as "Unknown usb device". "Windows has stopped this device because it has reported problems. (Code 43)"
I'm pretty stuck at this point. Is there any know way to revive my device?
Or is it simply bricked beyond repair?
Best regards
Same thing happened to me. Nvidia support emailed this procedure. Worked for some, not for others.
-> Unplug all the cables and keep the device off for good 2-3 minutes.
-> Plug the Power cable, controller through USB (Wired) and Ethernet cable to the ATV. Do not connect HDMI cable.
-> The device will power on. Keep it idle for about 5 minutes and keep tapping A button on the controller. Continue tapping for about a few seconds.
-> Now leave the device is this state without the HDMI cable for good 15 to 20 minutes and plug the HDMI cable.
-> See if the ATV displays any output
Hi @Makenshi2k have you managed to fix it? I have the same situation
@qqhorus tried your solution but it didn't work for me
uncenty said:
Hi @Makenshi2k have you managed to fix it? I have the same situation
@qqhorus tried your solution but it didn't work for me
Click to expand...
Click to collapse
Unfortunately no. The device is bricked.
I haven't found any way to restore it.
yesterday i instaleed latest version of pixel experience and magisk and connected my phone to the charger and slept over night in moring i saw that my phone was off i thought may be the charger was loose i checked and found out that my phonwe is not working no charge no led no twrp no fastboot no response while conneting it to the computer is there any way i can switch on the phone at least i triedto charge the phone but no good no response charged almost 8 hour no effect
Maybe it is in stuck in SOD (Sleep of Death)... Try holding down the power button for 30+ seconds, if that fails it is likely toast because if you can't get it to turn on there isn't much you can do.
EDIT: One other possibility, connect the USB port to a computer but before you connect it the phone, press and hold VOL DOWN and then connect the cable while you continue to hold that button, it may bring you into the fastboot menu after 5-10 seconds.
What was the version you installed?
acejavelin said:
Maybe it is in stuck in SOD (Sleep of Death)... Try holding down the power button for 30+ seconds, if that fails it is likely toast because if you can't get it to turn on there isn't much you can do.
EDIT: One other possibility, connect the USB port to a computer but before you connect it the phone, press and hold VOL DOWN and then connect the cable while you continue to hold that button, it may bring you into the fastboot menu after 5-10 seconds.
Click to expand...
Click to collapse
No good nothing happens
IgorCorrea* said:
What was the version you installed?
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Click to collapse
June update
Okay, weird problem here. I'd like to unlock the bootloader on the Samsung Galaxy Tab A 8.0 2019, but can't seem to recreate the blue screen asking if I'd like to enter download mode or unlock the bootloader. I've read that I should press both volume keys and plug in the device while holding the keys until that blue screen appears. However, for me this doesn't do anything except "boot" the charging thing (where you see the current battery percentage), I held the keys for about 30 seconds but didn't get anything different. When I press Power + Volume up I get that Android Recovery screen, but can't seem to unlock the bootloader from there either. I tried rebooting to bootloader, but that just gave me the download mode instantly (on a black screen with my tablet logo) - this way I also had no choice to unlock the bootloader. Anyone know what I should do here? I'm kind of stuck
Edit: fastboot oem unlock just tells me it's waiting for device, however adb can find my device (OEM unlocking and USB debugging is on)
Tizu69 said:
Okay, weird problem here. I'd like to unlock the bootloader on the Samsung Galaxy Tab A 8.0 2019, but can't seem to recreate the blue screen asking if I'd like to enter download mode or unlock the bootloader. I've read that I should press both volume keys and plug in the device while holding the keys until that blue screen appears. However, for me this doesn't do anything except "boot" the charging thing (where you see the current battery percentage), I held the keys for about 30 seconds but didn't get anything different. When I press Power + Volume up I get that Android Recovery screen, but can't seem to unlock the bootloader from there either. I tried rebooting to bootloader, but that just gave me the download mode instantly (on a black screen with my tablet logo) - this way I also had no choice to unlock the bootloader. Anyone know what I should do here? I'm kind of stuck
Edit: fastboot oem unlock just tells me it's waiting for device, however adb can find my device (OEM unlocking and USB debugging is on)
Click to expand...
Click to collapse
With the tablet off, plug the cable into a PC only. (not a charger) Then, while holding down both vol up and down, plug the cable into the tablet. After a couple of second, the screen should appear with the unlock option instructions.
lewmur said:
With the tablet off, plug the cable into a PC only. (not a charger) Then, while holding down both vol up and down, plug the cable into the tablet. After a couple of second, the screen should appear with the unlock option instructions.
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Click to collapse
I am doing that, but the tablet just shows the charging animation that appears when the device is off. By the way, the device is on Android 11, is that maybe the problem somehow?
Tizu69 said:
I am doing that, but the tablet just shows the charging animation that appears when the device is off. By the way, the device is on Android 11, is that maybe the problem somehow?
Click to expand...
Click to collapse
It has nothing to do with what version of Android you are on. It should enter the download mode before Android even starts to load. Have you tried using another USB cable? They can be very touchy about detecting the data connection rather than just power. As I said, I don't have a 290, but on my 500 it helps to connect to the PC via a USB 2.0 hub rather than directly to the PC.
lewmur said:
It has nothing to do with what version of Android you are on. It should enter the download mode before Android even starts to load. Have you tried using another USB cable? They can be very touchy about detecting the data connection rather than just power. As I said, I don't have a 290, but on my 500 it helps to connect to the PC via a USB 2.0 hub rather than directly to the PC.
Click to expand...
Click to collapse
I now tried 3 or 4 different cables with no luck. I'm still assuming that it has something to do with the software, and I noticed today that the tablet actually runs OneUI Core, whatever that means.