[RECOVERY] [UNOFFICIAL] TWRP - Shield Android TV 2017 & 2015 - All Models

HUYI

Senior Member
Dec 23, 2010
244
22
0
will twrp ever get support for 4k tvs, unofficial and official? i'm getting closer to getting a 4k tv so i'm sol if i do.
 

HarmfulMushroom

Senior Member
Jul 10, 2010
76
27
0
I cant seem to get my laptop and shield to interact...according the tutorial on this site im suppose to "enable USB" in storage (im not talking about usb debugging thats not a problem) however the "enable USB" appears for like a second then vanishes... I was able to turn it one just before it disappeared but didnt solve anything.... this leads me to think its either a wrong USB cable again, despite it being a 3.0 this time....

or my laptop security programs are blocking it some how... the only way iv been able to get the two to communicate is via bluetooth.... if i turn bluetooth off on my laptop it wont show in devices and printers or device manager despite being connected to usb..... any insights?

i feel the solution is in plain sight but its zooming over my head
Hey I had the same issue, I was using a USB male to male cable I made myself but nothing was working. Computer not seeing anything. I didn't realize the 2017 Pro has a micro usb port, that is the port you need to use. I'm embarrassed to say how long it took me to realize that, but as soon as you swap cables you're computer will see it!

Just FYI, the cable it came with does not work well at all for fastboot. You might want to find another one.

Also I think I enabled both network and usb storage by quickly enabling the settings before they vanished. You just have to be very fast.
 
  • Like
Reactions: SwisSwiss

SwisSwiss

Member
Jan 14, 2017
32
1
0
Hey I had the same issue, I was using a USB male to male cable I made myself but nothing was working. Computer not seeing anything. I didn't realize the 2017 Pro has a micro usb port, that is the port you need to use. I'm embarrassed to say how long it took me to realize that, but as soon as you swap cables you're computer will see it!

Just FYI, the cable it came with does not work well at all for fastboot. You might want to find another one.

Also I think I enabled both network and usb storage by quickly enabling the settings before they vanished. You just have to be very fast.
*face palm*...thank you!... managed to root thanks to your post....

EDIT: spoke to soon, thx to harmful mushroom I was able to make a step forward though.... so I was able to unlock boot loader (wasnt sure but when i entered the command again it said bootloader is already unlocked) however i seem to be unable to boot the recovery image..

this is the error I get...

D:\Minimal ADB and Fastboot>fastboot boot recovery.img
downloading 'boot.img'...
FAILED (data transfer failure (Unknown error))

is it the cable that sucks?

EDIT 2: yep it was the cable that sucked, used the one that came with a ps4 controller and it worked
 
Last edited:
  • Like
Reactions: HarmfulMushroom

SwisSwiss

Member
Jan 14, 2017
32
1
0
success!!! I confirm this works on the shield tv 2017 Pro, no memory loss after rooting and used a micro usb to usb A cable (thanks again harmfulmushroom) thank you for all the time put into this, adroid user you still need the build.prop?
 

AndroidUser00110001

Senior Member
Aug 16, 2011
3,430
5,739
0
NYC
success!!! I confirm this works on the shield tv 2017 Pro, no memory loss after rooting and used a micro usb to usb A cable (thanks again harmfulmushroom) thank you for all the time put into this, adroid user you still need the build.prop?
Got the build.prop for 2017 Pro. Looks like 2017 Pro is exactly the same as the 2015 Pro.

When you got your 2017 Pro did it ask to upgrade as soon as you booted? If so then someone can grab the update URL for the 2017 Pro and should be able to flash it on the Pro since so far it looks like there are no changes between the 2015 and 2017 models.
 

SwisSwiss

Member
Jan 14, 2017
32
1
0
Got the build.prop for 2017 Pro. Looks like 2017 Pro is exactly the same as the 2015 Pro.

When you got your 2017 Pro did it ask to upgrade as soon as you booted? If so then someone can grab the update URL for the 2017 Pro and should be able to flash it on the Pro since so far it looks like there are no changes between the 2015 and 2017 models.
yeah, updated immediately no ifs, no buts, no coconuts....
 

HarmfulMushroom

Senior Member
Jul 10, 2010
76
27
0
Got the build.prop for 2017 Pro. Looks like 2017 Pro is exactly the same as the 2015 Pro.

When you got your 2017 Pro did it ask to upgrade as soon as you booted? If so then someone can grab the update URL for the 2017 Pro and should be able to flash it on the Pro since so far it looks like there are no changes between the 2015 and 2017 models.
Same for me unfortunately. I thought you could still grab the url by clicking on check for update but I guess not... Next time an update goes live I'll sniff out the url. Or logcat it, whichevers easiest.
 

AndroidUser00110001

Senior Member
Aug 16, 2011
3,430
5,739
0
NYC
will twrp ever get support for 4k tvs, unofficial and official? i'm getting closer to getting a 4k tv so i'm sol if i do.
Not sure if it is a TWRP theme issue or something different in TWRP code. Trying to figure it out but I have no 4K screen to test with. A separate TWRP for 4K screens may need to be built.

I am a bit confused as what it can be. Don't 4K screens fall back to 1080 or whatever the resolution is of input device?

Does bootloader and stock recovery show on 4k screens?
 
Last edited:

AndroidUser00110001

Senior Member
Aug 16, 2011
3,430
5,739
0
NYC
Asked in how to build TWRP thread about 4K issues...

With the Nvidia Shield TV when attached to 4k TV/monitor TWRP is not displayed on monitor. Is it just a theme thing or is there more to it?
I see no reason why it should be a theme thing at all, it should simply be scaled. Does it work with a 2K monitor? adb pull /tmp/recovery.log and dmesg, maybe something is wrong with the framebuffer.
If anyone wants to pull the log...
 

SwisSwiss

Member
Jan 14, 2017
32
1
0
I may be saying something completely stupid but....a while back i was looking into why my genisis emulator console would not play game gear games and as it turns out its not a question of "scaling" or program writing but rather an issue related to the amount of color used by the two systems.... could this be the case for 4K tvs too?
 

AndroidUser00110001

Senior Member
Aug 16, 2011
3,430
5,739
0
NYC
Could be. It's one of the things I was going to try but do not have a 4K TV to test with :) No one has responded to my 4K test build yet so will wait and see if this first fix covered it.

I may be saying something completely stupid but....a while back i was looking into why my genisis emulator console would not play game gear games and as it turns out its not a question of "scaling" or program writing but rather an issue related to the amount of color used by the two systems.... could this be the case for 4K tvs too?
 

edjanx

Senior Member
Nov 5, 2008
79
16
0
Scranton
Installing TWRP on a 2017 500 GB Shield using a 4K HDR10 / Dolby Vison TV

Anyone with 4K monitor want to test this to see if TWRP is displayed?
The UI will be off...just wondering if anything will be displayed now. If so then I can fix up the UI layout.
I just finished unlocking the bootloader on a 2017 500GB Shield using the guide here:
http://nvidiashieldzone.com/shield-...t/tutorial-root-shield-android-tv-pro-nougat/

I've got an LG 55" OLED w/HDR and Dolby Vision. Unless I'm mixing my concerns, I believe I got around the 4K limitation when unlocking the bootloader by setting my Shield Video Video output setting down to 1080p. When unlocking, the stock bootloader displayed fine.

The TWRP available on the 'nvidiashieldzone' site is "TWRP (Hacked; Darcy), v 3.0.2h", and now that I'm ready for that step, I'm not sure which to install, so opinions are welcomed.

Thanks,
Janx
 
Last edited:

AndroidUser00110001

Senior Member
Aug 16, 2011
3,430
5,739
0
NYC
That's an older version. Try the recovery attached to the first post in this thread.

I just finished unlocking the bootloader on a 2017 500GB Shield using the guide here:
http://nvidiashieldzone.com/shield-...t/tutorial-root-shield-android-tv-pro-nougat/

I've got an LG 55" OLED w/HDR and Dolby Vision. Unless I'm mixing my concerns, I believe I got around the 4K limitation when unlocking the bootloader by setting my Shield Video Video output setting down to 1080p. When unlocking, the stock bootloader displayed fine.

The TWRP available on the 'nvidiashieldzone' site is "TWRP (Hacked; Darcy), v 3.0.2h", and now that I'm ready for that step, I'm not sure which to install, so opinions are welcomed.

Thanks,
Janx
 

ammadkhan

New member
Feb 12, 2017
1
0
0
shield pro 2015 nougat not flashing with this recovery twrp

I have shield pro 2015
recently i had updated to nougat.
my bootloader is unlocked but i am not able to flash twrp image.
is there any solution

this error comes every time

target reported max download size of 67108864 bytes
sending 'recovery' (15140 KB)...
FAILED (data transfer failure (Unknown error))
finished. total time: 5.030s


Flash at your own risk!
Not responsible for any damage you may do by attempting to modify stock software!

Recovery will work on all Shield 16GB 2015, Shield Pro 2015 & Shield 2017 16GB. All models...

You need ADB and FASTBOOT to get this installed.
You can follow this guide HERE or HERE

See attachments below for download.
Update 02/01/17
Added proper device info for 2017 Shield 16GB to allow OTA updates. Should work but not 100% sure if it will.

Extract img file from within zip folder
Reboot to bootloader

Use one of the two following commands
To flash recovery
fastboot flash recovery recovery.img

To boot into recovery without flashing
fastboot boot recovery.img

---
Thanks to TWRP for making the sources available and to @Steel01 for his work on TWRP for original shield which this was ported from.