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Hey all! I work in a tech repair shop and im having a hell of a time with this lenovo thinkpad we got in. the customers child set the lock screen and then forgot what it was, they want it to be factory reset BUT the lenovo doesnt ship with a compatible USB cord, only a wall plug. i have tried using power plus volume up button, power plus volume down button, both volumes plus power (this puts me into a kind of recovery mode but nothing shows up on screen, its for flashing new roms im pretty sure, abx or adx mode or something like that) i just want to be able to reset this device. i have looked EVERYWHERE and i can find NO help whatsoever, i have tried EVERYTHING that i have found online (including powering it on and pressing the volume up key right as it vibrates, ive been trying this for about an hour and a half now with no luck.) i just wanna get this device out of the store asap because its starting to piss me off. thanks in advance for any help guys!
How did you make out? I am having the same issue with this tablet.
if you have usb debugging enabled and your computer whitelisted, you can get into recovery using adb commands
Hello everyone!
I was using the Shield (pro model, 500gb) and suddenly it won't respond to the remote control. I turned the Shild off and then tried to turn it on, but it won't. When I try to turn it on the shield button turns green but only for 1 second and then turns off. Nothing is displayed on the TV. I have tried many times turning on the Shield and it only turns green the button for one second and then turns off.
I have tried the instructions provided here, but to no avail: http://support-shield.nvidia.com/android-tv-user-guide/index.htm#t=Reset_SHIELD.htm
Has anyone encontered this issue and resolved it? Don't know how to recover my device now
Thanks a lot for your help!
Best regards,
David.
austmathr said:
Hello everyone!
I was using the Shield and suddenly it won't respond to the remote control. I turned the Shild off and then tried to turn it on, but it won't. When I try to turn it on the shield button turns green but only for 1 second and then turns off. Nothing is displayed on the TV. I have tried many times turning on the Shield and it only turns green the button for one second and then turns off.
I have tried the instructions provided here, but to no avail: http://support-shield.nvidia.com/android-tv-user-guide/index.htm#t=Reset_SHIELD.htm
Has anyone encontered this issue and resolved it? Don't know how to recover my device now
Thanks a lot for your help!
Best regards,
David.
Click to expand...
Click to collapse
Im not a expert in this sphere, but according your written the power button on Shield not lights and this happened without your interfering, my guessing and opinion sounds like you have hardware problem, this symptoms not sounds like software. Try this one and or not I would go sending back by warranty!
https://youtu.be/2AzHF-uNiY8
Izsūtīts no manas Nokia 3310 используя бесплатную xda app
---------- Post added at 10:57 AM ---------- Previous post was at 10:55 AM ----------
austmathr said:
Hello everyone!
I was using the Shield and suddenly it won't respond to the remote control. I turned the Shild off and then tried to turn it on, but it won't. When I try to turn it on the shield button turns green but only for 1 second and then turns off. Nothing is displayed on the TV. I have tried many times turning on the Shield and it only turns green the button for one second and then turns off.
I have tried the instructions provided here, but to no avail: http://support-shield.nvidia.com/android-tv-user-guide/index.htm#t=Reset_SHIELD.htm
Has anyone encontered this issue and resolved it? Don't know how to recover my device now
Thanks a lot for your help!
Best regards,
David.
Click to expand...
Click to collapse
...and BTW you have 16gb or 500gb console?
Izsūtīts no manas Nokia 3310 используя бесплатную xda app
I have a pro (500gb) model. Thanks, I'm going to try this and report back my findings.
Thanks!
Hello again!
I tried what is mentioned on the video but it does not enter into bootloader. The video mentions to press the nvidia button two times and in the first time the green light keeps on. In my case, when I press the first time, even if I keep pressing, the green light just turns on for 1 second and goes off. The second time it is the same, and actually nothing happens
Anyone has encountered this issue?
thanks!
Did you manage to eventually get this sorted?
I have an almost identical problem; the remote for my SATV Pro stopped responding, mid-session, one day.
I had to pull the plug and it would no longer boot, thereafter.
The light will stay on indefinitely, it seems - I left it on overnight to test.
It won't enter the bootloader menu, either; if I hold the power button for 6 seconds, the light switches off and I can still hear the harddrive.
when trying the push button method do not forget,the USB and HDMI should be plugged to each device before start. me I just press for start then I instantly press again and hold,works well .
Did you figure out what happened and if there is a fix for this? My Nvidia Shield Pro is having the exact issue and unfortunately my unit is a month over the warranty period =(.
Same light flash for a second after power, but nothing after. I'm thinking it must be a hardware issue, but how to troubleshoot it? Wish an nVidia engineer would help out.
My 2015 Shield 16GB went dark today and I have the LED on for 6-10 seconds after replugging, and then it shuts itself off. I only see the green Shield logo for few seconds. Tried going into bootloader, but there it too shuts down after few seconds...
same her mine just gave up.
Was Shield Experience 8.2.1 recently released or am I just seeing it now for some reason? Maybe that's what caused your problems?
edit: seems like there are issues with the TV trying to go from 7 directly to 8.2.1. See the sticky:
https://www.nvidia.com/en-us/geforc...ield-experience-upgrade-821released-11162020/
after one night unplugged i got it booting again and it run for about 10 minutes or so.
efter that i have now tried toapply new cooling paste and even tried with another power adapter, but noting seems to help so far.
and as some one else up there said, i can still hear the hdd spin
A very similar thing has happened to me but maybe my difference can shed light on this issue?
I was cleaning (sweeping specifically) and accidentally turned the shield on. I pressed the touch button on the front of the shield to put it back to sleep and I then heard a *pop* sound. After that the shield will only turn on for a second, the green light will come on for a second and then it will switch off.
I opened it up (pretty easy with just my finger nails even) and I can hear sounds coming from the mainboard when I plug it in, like it's still receiving power even though it wont turn on.
I have little to no experience repairing electronics but my assumtion is I discharged enough static to blow the power button board on the front of shield unit.
Also to add, the shield unit will not respond to the inputs of a controller or a keyboard that has been paired with it.
I identified the infinitesimally thin wires that connect the touch power button to the main board but they dont seem to be damaged themselves - I plugged the power supply in while each side was disconnected and the shield unit turned on when I reconnected the wires.
I'm going to assume that if I can replace the power button board on the front of the unit it will work again but I'm not sure and cant be sure unless I can get a spare part.
Or maybe I should just take it to a repair shop?
Has anyone managed to get their unit working properly after this specific issue.
Side note: it's strange how many others have this exact same issue in this exact month isnt it?
Just following up a little bit.
I got a new power supply from Ebay to see if that would make a difference.
It did not - the power supply is not the issue.
Oh just to add - I tried cloning the original drive but I was still able to read it on my computer and the drive-clone didn't change the outcome so that wasnt the issue either.
overdrivepower said:
Just following up a little bit.
I got a new power supply from Ebay to see if that would make a difference.
It did not - the power supply is not the issue.
Oh just to add - I tried cloning the original drive but I was still able to read it on my computer and the drive-clone didn't change the outcome so that wasnt the issue either.
Click to expand...
Click to collapse
I turned mine off at the device last night and, pop, a huge static discharge from my finger. My Shield now exhibits the same behavior as everyone else in this thread.
Just wondering if you or anyone else every figured out a fix? Possibly blow fuse or capacitor in the power circuitry?
No change in status.
I'd like to still fix mine but I ended up buying a mini PC, which is a million times better than a proprietary-hardware device.
It's not locked down like an android only device (even though it runs on win10) and I can do much more with it than just watch movies and play android games/apps.
Anyway if anyone else can find a solution to this that'd be great.
D
DreadfulDrummer said:
Did you manage to eventually get this sorted?
I have an almost identical problem; the remote for my SATV Pro stopped responding, mid-session, one day.
I had to pull the plug and it would no longer boot, thereafter.
The light will stay on indefinitely, it seems - I left it on overnight to test.
It won't enter the bootloader menu, either; if I hold the power button for 6 seconds, the light switches off and I can still hear the harddrive.
Click to expand...
Click to collapse
Did you remember to connect it to a PC via USB first?
Cause if not... Well theres your first problem.
Same here, stuck at circles........
Nvidia Shield TV Pro 16GB 4K HDR
All right guys, I'm back with the following steps
If you own a SHIELD Controller
• Unplug SHIELD TV.
• Connect SHIELD controller to SHIELD TV with a USB cable (use port closest to HDMI).
• While holding the A and B buttons at the same time, connect power to SHIELD TV.
If you do not own a SHIELD controller
• Unplug SHIELD TV.
• Connect a USB keyboard directly to SHIELD TV (use port closest to HDMI)
• While holding the "A" and "B" keys down at the same time, connect power to SHIELD TV.
• Once you enter Fast Boot mode, on the keyboard use the "X" and "Y" keys to navigate the menu and "A" to select
Use the X and Y buttons on the controller to move to "Boot recovery kernel".
3. Press the A button to select "Boot Recovery Kernel".
4. You may see the dead Android robot on screen. This is expected behavior. If so, press B button on the controller.
5. You will see Android Recovery Menu.
6. Use the X and Y buttons on the controller to move to "wipe data/factory reset".
7. Press the A button to select "wipe data/factory reset".
8. After process select "reboot system now".
8. SHIELD will boot to home screen.
Do the factory reset
It will bring you back to recovery
Select "Continue"
device will process and reboot like new
Hope this works....ENJOY
It did for me
I received the above info while chatting with Nvidias tech support
Hello,
I have tried the search feature to no avail in regards to following the appropriate troubleshooting steps to ensure that I can at least boot to fastboot, however I cannot boot into the fastboot menu.
These are the steps I have tried so far:
With only the Power, HDMI, and MicroUSB to USB connected
1) Disconnect the Power
2) Hold Nvidia Button Down
3) Reconnect the Power
4) Release Nvidia Button (~2 seconds)
5) Press and Hold Nvidia Button (~5 seconds)
again, I am still at a black screen with no output whatsoever.
I have also tried allowing a full power cycle (where the Nvidia TV is left alone for approximately 15 minutes)
I also tried the Nvidia chat support who suggested that I try plugging in the controller and pressing the A and B buttons simultaneously, etc. to no avail.
Is there anyway to force a fastboot interaction via console? I would just like to reflash to stock. Even if this method requires altering the hardware via soldering.
You need to connect (Depending on your Model), either a MicroUSB, (2015, 16Gb, Pro / 2017 Pro), or a Male Type "A" to Male Type "A" (2017, 16Gb) between the Shield TV, and some Computer. I prefer to use a Netbook running Win7. But, This should be equally valid for Linux, and Mac.
So with you PC / Netbook turned on, and connected to the Shield TV via USB. Leave the USB style plug in the Shield and if possible yank the Brick (Wall Wort), instead.
Start a Two beat count.... 1... 2... 1... 2... (It would work better if you had a Clock that had a Second Hand.) But once you have this 'beat' drop in the Wall Wort on count Two. And THEN tap the Power Button, hold this for Three counts, than release (Pro Uses might note the SSHD will start to wake at this very moment), and immediately re tap, and hold the Power Button till you enter the Recovery Mode.
This is a very time sensitive attack, and 2/3s of the time will land you at the nVIDIA Logo. (Where available), and your only option here will be to start over again. Or boot completely into Android, and use
$ adb reboot recovery
To force the Device to reboot into recovery mode.
Ichijoe said:
You need to connect (Depending on your Model), either a MicroUSB, (2015, 16Gb, Pro / 2017 Pro), or a Male Type "A" to Male Type "A" (2017, 16Gb) between the Shield TV, and some Computer. I prefer to use a Netbook running Win7. But, This should be equally valid for Linux, and Mac.
So with you PC / Netbook turned on, and connected to the Shield TV via USB. Leave the USB style plug in the Shield and if possible yank the Brick (Wall Wort), instead.
Start a Two beat count.... 1... 2... 1... 2... (It would work better if you had a Clock that had a Second Hand.) But once you have this 'beat' drop in the Wall Wort on count Two. And THEN tap the Power Button, hold this for Three counts, than release (Pro Uses might note the SSHD will start to wake at this very moment), and immediately re tap, and hold the Power Button till you enter the Recovery Mode.
This is a very time sensitive attack, and 2/3s of the time will land you at the nVIDIA Logo. (Where available), and your only option here will be to start over again. Or boot completely into Android, and use
$ adb reboot recovery
To force the Device to reboot into recovery mode.
Click to expand...
Click to collapse
I appreciate your reply but again I am not getting any output what so ever after attempting to apply an update to the Nvidia Shield TV. Is there any procedure to force the device to flash even over hardware?
Depends on if you have a 16Gb or not...
Let's put it this way, if you have a 16Gb it's pretty a wrap. If you have a Pro then you have a few options. Like ripping the SSHD out of it, and attaching it inside a PC running Linux. Or at the least a PC running a live install of Linux.
Which is critical to maintain your private keys. Everything else can be discarded. But, not those DRM Keys. Not if you plan on ever using anything that will need Widevine L1.*
Now that is wholy your choice to make. Either way you will probably want to down that Torrent, which is a backup of someone else's Shield TV. It WILL reserect your Device. But, if you haven't managed to recover your own Keys you will not be able to rewrite them back later on. And, the upshot of that will be the loss of all Widevine L1 Services. e.g. Amazon, Netflix etc...**
*https://forum.xda-developers.com/shield-tv/general/guide-migrate-to-ssd-hdd-size-satv-pro-t3440195
**https://forum.xda-developers.com/showpost.php?p=67426622&postcount=23
Ichijoe said:
Depends on if you have a 16Gb or not...
Let's put it this way, if you have a 16Gb it's pretty a wrap. If you have a Pro then you have a few options. Like ripping the SSHD out of it, and attaching it inside a PC running Linux. Or at the least a PC running a live install of Linux.
Which is critical to maintain your private keys. Everything else can be discarded. But, not those DRM Keys. Not if you plan on ever using anything that will need Widevine L1.*
Now that is wholy your choice to make. Either way you will probably want to down that Torrent, which is a backup of someone else's Shield TV. It WILL reserect your Device. But, if you haven't managed to recover your own Keys you will not be able to rewrite them back later on. And, the upshot of that will be the loss of all Widevine L1 Services. e.g. Amazon, Netflix etc...**
*https://forum.xda-developers.com/shield-tv/general/guide-migrate-to-ssd-hdd-size-satv-pro-t3440195
**https://forum.xda-developers.com/showpost.php?p=67426622&postcount=23
Click to expand...
Click to collapse
I have the 16GB model and I am not sure what would be the best way of resurrecting my device upon a bootloader that is corrupt.
I think your forked... The only way it could possibly be done would be to pull the ROM Chip, and clone this in a not so dissimilar fashion, and then flash a working 'Image' back onto it. Before resoldering said Chip back onto the Mainboard.
Again, Not something just anyone could do.
Look I have no idea how old your Shield is, or if you still have, or have ever had any Warranty Rights to begin with. Assuming that you still had any of these 'Rights'. I would recommend playing dumb, and attempt an RMA, and pray that it works out.
If that also fails, then I guess you are what is termed as being SoL...
Ichijoe said:
I think your forked... The only way it could possibly be done would be to pull the ROM Chip, and clone this in a not so dissimilar fashion, and then flash a working 'Image' back onto it. Before resoldering said Chip back onto the Mainboard.
Again, Not something just anyone could do.
Look I have no idea how old your Shield is, or if you still have, or have ever had any Warranty Rights to begin with. Assuming that you still had any of these 'Rights'. I would recommend playing dumb, and attempt an RMA, and pray that it works out.
If that also fails, then I guess you are what is termed as being SoL...
Click to expand...
Click to collapse
Thanks Ichijoe I tried to also to boot into recovery using alt + print screen + i (on an external keyboard) in order to restore the device however this did not work.
I wanted to pull the ROM chip but I don't know of any software available to allow such a feat. Does anyone have any information on utilizing J1D1 or J1D2?
pandorarob0t said:
Thanks Ichijoe I tried to also to boot into recovery using alt + print screen + i (on an external keyboard) in order to restore the device however this did not work.
I wanted to pull the ROM chip but I don't know of any software available to allow such a feat. Does anyone have any information on utilizing J1D1 or J1D2?
Click to expand...
Click to collapse
This is getting oh so over my head now. So take it for what it's worth. But, as I understand it One would need an EEPROM Programer, and the "Software" would just be written as a RAW Data. Again not entirely, not unlike taking a certain 'Raw' backup that someone tossed up to the Net as a Torrent File. For bricked Pro users.
Pulling the ROM Chip off the Board is not something just anyone can do without destroying the Chip, the Mainboard, or both. The EEPROM Programmer is also an additional cost, of which I would have no clue. Needless to say, in the long run it's just unfortunate as it is, to just get a new Shield.
pandorarob0t said:
Hello,
I have tried the search feature to no avail in regards to following the appropriate troubleshooting steps to ensure that I can at least boot to fastboot, however I cannot boot into the fastboot menu.
These are the steps I have tried so far:
With only the Power, HDMI, and MicroUSB to USB connected
1) Disconnect the Power
2) Hold Nvidia Button Down
3) Reconnect the Power
4) Release Nvidia Button (~2 seconds)
5) Press and Hold Nvidia Button (~5 seconds)
again, I am still at a black screen with no output whatsoever.
I have also tried allowing a full power cycle (where the Nvidia TV is left alone for approximately 15 minutes)
I also tried the Nvidia chat support who suggested that I try plugging in the controller and pressing the A and B buttons simultaneously, etc. to no avail.
Is there anyway to force a fastboot interaction via console? I would just like to reflash to stock. Even if this method requires altering the hardware via soldering.
Click to expand...
Click to collapse
let's try this way :
unplug your power cable of the shield tv
plug your lan cable on your shield tv ( be sure DHCP on your local network is turning on)
plug your new shield controller on the usb port of the shield
plug the power cable and DON'T TOUCH THE CONTROLLER for 1 minute
now hold down home button and left button ( on the X) for 3 seconds
normally you can see the blue signal of the controller 3 times. this mean the procedure working good ( if not retry till it work)
now let your shield working around 2 hours ( depend of your download speed)
afetr this time, normally the shield finish downloading the update and restart... now you normally can see the screen
Hi everyone
I have a 2015 16 Gb Nvidia shield tv rooted on Nougat bin I have been unable to update it after root. Need help cause controller is acting up and I suspect it's related. What should I do?
Try to go back to stock?
Flash the new update?
Please help.
georgimorales said:
Hi everyone
I have a 2015 16 Gb Nvidia shield tv rooted on Nougat bin I have been unable to update it after root. Need help cause controller is acting up and I suspect it's related. What should I do?
Try to go back to stock?
Flash the new update?
Please help.
Click to expand...
Click to collapse
I'm going through the same issue please help someone
Fixed the issue by flashing 5.2 stock image.
I was able to update after with no problem.
Controller still not acting properly tho.
Problem with controller was fixed
georgimorales said:
Fixed the issue by flashing 5.2 stock image.
I was able to update after with no problem.
Controller still not acting properly tho.
Click to expand...
Click to collapse
So I emailed Nvidia about the controller and they responded. I followed thru their directions with a few tweaks.
They requested me to the the following:
1. Fully charge the SHIELD controller.
2. Clear data/cache and force stop SHIELD Controller.
(Go to Settings > Apps > SHIELD Controller > Clear Data, Clear Cache > Force Stop)
3. Reset the controller:
Press and hold Back + Home buttons for 15 - 20 seconds. You can release the buttons once the lights on the controller go off (This I could not do because back and home buttons were still not working)
4. Re-pair the controller and the SHIELD console.
So I followed until step 3 without letting the controller fully charge. Could not reset the controller because back and home buttons were still not working.
By the way, I had to hardwire the controller for No. 2.
I did all this and had some progress. Volume Up and down buttons were working and the mic as well. Still I had to unpair If I needed to put the console in sleep mode. When unpaired the controller would constantly blink (pair mode). I left it all morning and afternoon charging. Came back home and done, controller good as new. Hope this helps someone.
Hello evryone,
I'm a bit in a pickle here, i got a smart TV (zephir store brand) that costantly loops trough the zephir logo and smarttv logo.
As far as i know the tv fuction perfectly fine until the previus owner tried to performe a firmware update, during the update something went wrong and now we are in this situation.
Till now i have tried the following:
Turning it of and on
Un plug the power and wait for 1h
Tried to perform a factory reset via remote
Tried to perform a factory reset while holding the power button
Tried to perform a factory reset while holding the power button and the volume down button
Tried to perform a factory reset while holding the power button and the volume up button
Tried to connect an usb keyboard
tried to connect via usb to PC
Nothing of the above showed any sing of response at this point the owner has given up on the TV but i still wana try to use it as a second monitor or something, so with all of that i'm coming here to seek the wisdom of the XDA forums. Any and all help would be apriciated form jailbraking to rooting, turning it into a monitor with no android fucionality, how to access the shell file anything at all.
Alright, so I couldn't find any firmware anywhere whatsoever for the Zephir brand. Tried loading a differend brand one for the same logic board. Managed to boot it but the picture was inverted and doubled. Made it to the source selection screen. Attempted to load a different firmware. The tv crashed while loading the booter. Now it won't even turn on the power indicator LED. So I guess it's well and truly cooked.
I could find the board online for like € 40 but I'm pretty sure they come without any firmware or OS? Does anyone know if it'd be worth a try, especially without being able to source the OEM firware?
Does anyone know if there is a way of making just the screen run on an arduino or something, I only need it to run HDMI anyways, 'cause I was planning on using it as a monitor anyways. The logic board is a CV538H-a.
If anyone has a suggestion I'd be glad to give it a go, otherwise i guess I'll bin it.