yashsingh1/xdaforums huggingface dataset:
[Sony Xperia T2 Ultra] ihiren:
Testing the camera app

I am downloading the rom and the camera app

And will surely reply the feadback and the errors of the camera app on page 4 within 24 hours
[Sony Xperia T2 Ultra] mujju85:
Plz try this mod with super user on.... and let me know what the status
[Sony Xperia T2 Ultra] miki89:
Please explain them how to use super user mod :)
[Sony Xperia T2 Ultra] mujju85:
Install exposed than install sejar and enable the super user mod option
[Sony Xperia T2 Ultra] the_prodigal_coder:
Are there any custom kernels for 4.4.3 (D5322) ? I need to overclock and undervolt this bad boy to get best performance and standby time. Is Jarpelea the only one working on the unified kernel thread? If so, he seems to be focussing more on the LTE version (D5303) ... So any other sources ?
[Sony Xperia T2 Ultra] marlon.melo:
Doubt

Hi, I'm trying to apply the CM11 ROm in my Sony T2 Dual, but I have a doubt... How access the recovery mode (get the purple led) to keeping doing it?
[Sony Xperia T2 Ultra] krishna442:
Press the volume button.

Did you flash recovery yet??
[Sony Xperia T2 Ultra] hearhackerkrunal:
i had flash as above

i had flash as above

there was no network signal \

so i did as mentioned via terminal commands and got 1 sim enable

then i flashed stock rom and many but not getting daul sim enabled

plz helpppppppppppppppp
[Sony Xperia T2 Ultra] mijing:
Error

Sim 2 Network Not Found
[Sony Xperia T2 Ultra] cankit369:
cant flash the rom

where to enter the command for fast boot

i am having twrp recovery,trying to flash but failed

do i need cwm if yes then pls provide and help me
[Sony Xperia T2 Ultra] fiyanshu:
I dont know abt why sim2 is not enable.on stock rom but

In cm11 after enabling sim1 u have to flash the following boot.img through fastboot commands after that u will get the option to enable sim 2 https://mega.co.nz/#!2RFBFZoR!rVrdvLSnkdfe6VS3JLUDFRLmFRtHp7hmYs2jL7hT-PY

---------- Post added at 02:28 AM ---------- Previous post was at 02:24 AM ----------

Try cwm recovery

U will get that from rom file the path for that is rom.zip/ then. TThere is boot.img available copy that to fastboot folder and flash it through fastboot commands
[Sony Xperia T2 Ultra] cankit369:
need second sim support

hey bro i have flashed it but not hving second sim support tried your fix network issue
[Sony Xperia T2 Ultra] fiyanshu:
Before that do u fix the sim 1 issue by terminal window
[Sony Xperia T2 Ultra] varunkane:
need step how to root my xpeira t2 ultra dual

Namaskar prabhunerurkar saheb,

I am noob for rooting xperia device. can you guide how to root sony xperia t2 ultra dual with step wise or tutorial video. pls do the needful.
[Sony Xperia T2 Ultra] LeopardSurd:
Unlock bootloader with Flashtool then use Flashtool to flash a 4.3 Official ROM, root it with vROOT and then use Flastool to flash boot.img from a CM11 build. That's all.

Flashtool everywhere. If something is going wrong, just flash an Official ROM with...Flashtool. :D

If you need Official ROMs, search Xperifirm to download what you want for your phone.
[XDA Assist] akhil.k.sugathan:
could any one help me to get android lollipop apps , wallpaper and etc
[XDA Assist] Razvan:
Hi,

For such a questions in one of this Q&A forum:

> Android Development and Hacking > Android Q&A, Help & Troubleshooting

Or search the best fit for you in the dedicated forum of themes:

> Android Development and Hacking > Android Themes

Good luck
[Nexus 9 General] USBhost:
There is an LED on the nexus 9

but i think theres a bug that the os cant turn it on

notification light?: http://youtu.be/DUFqX0MsEfo
[Nexus 9 General] tsy87:
My bet is that is the ambient light sensor... some cameras will pick up the IR emissions when you film it.
[Nexus 9 General] USBhost:
haha yeah right

Let your Nexus 9 battery die

And try to turn it on right away

You will see it
[Nexus 9 General] PhilipL:
Hi

Ambient light sensors don't emit infra red or any light. When you see flashing lights via a camera from a device, it is the proximity sensor which flashes infra red, which gets reflected back when the device is close to the face.

The Nexus 9 has no proximity sensor, and so doesn't emit pulses of infra red.

The LED could be an infra red LED for lighting up our faces in the dark for face unlocking perhaps, although it wouldn't be a yellow component as shown in the iFixIt tear down.

The video looks like a white flashing LED.

Regards

Phil
[Nexus 9 General] slevinbxl:
its the low battery led according to google website.
[Nexus 9 General] USBhost:
Then why cant the os use it
[Nexus 9 General] slevinbxl:
its a software bug update will fix it. you are beta testers

:laugh::laugh::laugh:
[Nexus 9 General] Hashbang173:
Or a custom ROM will...
[Nexus 9 General] USBhost:
Aye !!
[Nexus 9 General] mhannigan:
There IS a notification light, but that's not it.

The notification light on the Nexus 9 is on the metal trim on the right side of the top speaker.

However, the real notification light doesn't work for notifications either.
[Nexus 9 General] USBhost:
No thats the ambient light sensor
[Nexus 9 General] mhannigan:
No, it's not. The center of the top bezel is the ambient light sensor - the camera. The rectangle on the metal trim to the right of the top speaker is the notification LED. Do you have a Nexus 9? I'm holding one.
[Nexus 9 General] USBhost:
O ok now i see it

Then why would the nexus 9 have 2 leds or small lights
[Nexus 9 General] KinetiClutch:
http://m.imgur.com/06ODTKX

Here's photo of the same thing on mine. Discovered the same way letting the battery die then charging.

Tried light flow and cant get it too light any other way. Also the top right is an Antenna probably left over from the LTE version, its the exact same style as the HTC One M8 antenna implementation.
[Nexus 9 General] mbirth:
Wrong. That black piece of plastic in the aluminium frame (white N9) is just that: plastic. Most probably to absorb shock or temperature-related changes of the frame.

Here are iFixIt's photos of the PCB in that area:

FRONT

BACK

As you can clearly see (or NOT see): There's nothing there.

However, on the other side of the device - what can be seen in the top post, there's something:

See that little yellow thingy above the USB port? Looks like this:

And that's a RGB LED.

(The ambient sensor is right of the black square's top right corner in the FRONT picture above.)
[Nexus 9 General] manigault:
So I watched the video in the OP and didn't notice any light bleed. Is there something wrong with your tablet? ??
[Nexus 9 General] mhannigan:
No, that's incorrect. The LED notification light is on the metal rim to the right of the top speaker. This is not an intenna. This is not a proximity sensor. It is the LED notification light.

The video shows infrared light that we can't see directly. Assuming that is infrared, that is related to proximity sensing.

Why are you guys telling me I'm wrong, and just guessing? I'm not uncertain about what it is. LOL... I'm telling you, not asking you, what it is. Stop making things up.
[Nexus 9 General] USBhost:
because tablet was dead

Screen did not turn on
[Nexus 9 General] KinetiClutch:
Trust me, it FLASHES.

It's an LED. What more can I say, I can see it flash with my own eyes. Try it yourself.

you are wrong.
[Nexus 9 General] USBhost:
look like i was half right lol
[Nexus 9 General] KinetiClutch:
Now only if the other guy will realise it's not ultra violet light (lol)
[Nexus 9 General] USBhost:
haha lol
[Nexus 9 General] KinetiClutch:
Now we have to wait and see why it doesn't work?

Reckon it's worth going to google and asking?
[Nexus 9 General] USBhost:
When i was playing around with the kernel sources

I fownd out that the led will turn on if there was a certaint kernel event that was triggered
[Nexus 9 General] marctronixx:
the moto xoom has a similar led.

under stock settings it only lights up when the tab is off and charging.
[Nexus 9 General] bzd0730:
There is an LED on the nexus 9

but i think theres a bug that the os cant turn it on

I think so
[Nexus 9 General] accordex:
Seems to be a few bugs..no led, OK google works with screen off, however only a couple of times, then it needs a reboot. Plugged it in last night and woke up this morning and it was stuck at 89% ... Had to unplug and plug it back in.

I was almost ready to return this thing but it is growing on me. Hopefully things will get ironed out as we go.
[Nexus 9 General] MRobbo80:
I have also seen it

---------- Post added at 08:46 AM ---------- Previous post was at 08:44 AM ----------

When device was totally out of charge, and connected wall charger it started to flash a few times. That was it
[Nexus 9 General] Migamix:
I have seen it also. full discharge, there was a light blinking 3 times when I pressed the power button without sufficient boot power. period. end of discussion. it is there. there is one person in this thread that may want to apologize and say "oops... I was wrong and shouldn't have talked down to others without facts and internal investigation. "
[Nexus 9 General] KinetiClutch:
This is XDA, no chance of that.

Will be interesting to see if it's able to be turned on via root.
[Nexus 9 General] silentrain94:
up

---------- Post added at 06:18 PM ---------- Previous post was at 06:12 PM ----------

uppp
[Nexus 9 General] lightlytoasted:
It's just !@#$ing black plastic. Same plastic that wraps around the whole frame between metal and glass. No light is coming through there even if it was a laser.

There's like 5 pics / vids showing the LED and its exactly where you expect a Nexus LED to be. Below the screen right in the !@#$ing middle. It's been reminiscent of the Nexus One LED trackball. Only Nexus S and Nexus 7 2012 didn't have one, all others did.
[Nexus 9 General] VSack:
I can also confirm that the light exists. My 9 ended up completely depleted and refused to turn on. While recovering its charge, the mystery light would blink three times when I would try the power button.

They are centered above in the empty glass space above the USB port; though I think that's been established.
[Nexus 9 General] dtl:
So to wrap up as I read all of this (and sorry just want to fully understand). Is it fair to say that the LED will light up/flash under certain conditions but not for notifications. I would not have known there was this until this thread. Although I might have expected to see one.

I am keeping mine and hope firmware upgrades will solve most of the issues.

But am disappointed in Google for letting this product out in this state, not just for me but for so many. Light leaks (I have seen horrible examples) hint at production issues, firmware not quite ready (if I read right, this LED issue and perhaps battery can be fixed by firmware), no case yet and production issues there also.

Yesterday I scanned other forums including Google's and there seems to be a lot of unhappy people (there are of course happy campers also) and hope that Google is becoming aware of these issues. I certainly would work to help in any way.

I have a Nexus 5 with no issues at all so I know Google does have quality standards.

dtl
[Nexus 9 General] pendragon11:
I saw it. I believe.
[Nexus 9 General] bradputt:
No you all are wrong and I'm right! it's at the metal thingy frame at left right up down.

I know it because i don't even have the tablet!

LOL
[Nexus 9 General] berendspruijt:
would love to see it working on mine.

Altough the soud notifications are pretty sweet too ^^
[Nexus 9 General] aleandre1974:
Wow, I just saw it as my tablet was plugged in with its battery fully depleted and wouldn't start when pressing the power button ! This May be used in a future firmware update, at least I hope so. Mine was white, but maybe several colors are possible, just like on the Nexus 10.
[Nexus 9 General] flar2:
I found this in the kernel source: https://github.com/flar2/ElementalX-N9/commit/5262e4f55f61346adfc95b2c0a4f1ce761a16a0d

Tried re-enabling it but got instant reboot when I tried to turn on the LED. Didn't look into it further, suspect it needs firmware changes.

It also looks to have RGB capability, unless the hardware itself is different since this commit, which was way back in April.
[Nexus 9 General] USBhost:
most interesting
[Nexus 9 General] KinetiClutch:
Why would they remove it.

Would the drivers be needed for the low battery turn on or is this like hard wired
[Nexus 9 General] D-m-x:
Don't know if I'm right but I'm guessing they ran into problems and just turned it off. I like Lollipop but it does feel a little unfinished IMHO.
[Nexus 9 General] USBhost:
True
[Nexus 9 General] xn2206:
On all HTC devices, the notification led wouldn't last >5 minutes unless the kernel is modified. So that they can save some 0.00xx watts of power....

Could this be the reason Google disabled it altogether?
[Nexus 9 General] RMerlin:
I remember my Xoom had a small LED that was mostly only used to show a blinking pattern if you tried to turn it on while low on battery (or if you didn't hold the power button down long enough if I remember correctly - it's been a while). Somehow, the N9 LED seem to be quite similar, so I'm not sure it could eventually be enabled as an actual notification LED.
[Nexus 9 General] PaulGG:
led test

Hi guys you can test your led by doing the following. Power off your nexus 9 plug in wall charger the led will flash acouple of times white then turn off. I am assuming that full utilisation may come later via a software update.

Will upload a video to 4dogstech on YouTube later.

Regards Paul
[Nexus 9 General] JDR man:
Try another charger.;)
[Nexus 9 General] nolook:
hope we get this soon I miss the led from n7...

Sent from my Nexus 9
[Nexus 9 General] NYFan:
My LED is working. When I am fully discharged and plug it in the white light blinks. It does not last for long though. It seems it goes away once it gets a little juice. It would be awesome if we could utilize this light. Seems Samsung beats all in this regard!! Too bad they don't have the best software.
[Nexus 9 General] ebhk:
The LED is there. i can see where it is placed under the right light condition. Just look at the picture, this is not the the ambient light sensor which is placed along side the front camera. You can see that i have the USB plucked in, so it is the bottom of the tablet.

Hopefully they will activated it in future updates although I actually doubt it...
[Nexus 9 General] dom2684:
I'm an x-ray tech and I x-rayed my n9 I'm not sure If I can see and LED there at the bottom
[Nexus 9 General] USBhost:
O cool

Love how it looks!!
[Nexus 9 General] the.teejster:
Why are people still questioning whether or not an LED is present ???

Per the quote below you can see the LED.

To confirm (I did), when the tablet dies, plug it in and the LED flashes a couple of times then stops.
[Nexus 9 General] VideoExpertsGroup:
Sure, there is definately no question about it any more:D
[Nexus 9 General] BitNotFound:
PLEASE tell me you have a high-res version of this! I think I found my new wallpaper!
[Nexus 9 General] Jeltel:
There is also a led on the Nexus 7. And like the 9 it's only used to indicate an empty battery.

So don't get your hopes up on google using this for notifications etc. It might nog even be possible to acces this from android, but only on a very low hardware level.
[Nexus 9 General] eduolmeda:
Nice pictures! Thank You.
[Nexus 9 General] dom2684:
This was the best I could do , I included a psd in case anyone wants to mess with it

Nexus 9 Wallpaper

Nexus 9 psd
[Nexus 9 General] JebyDroid:
Are you sure? On my Nexus 7 2013 is working as notification led.
[Nexus 9 General] Migamix:
nope, not sure. no one has seen the light in depleted battery mode, no one has taken xrays, and no, my new case does not have a cuttout just for that nonexisting light

RTFT!
[Nexus 9 General] cLeAv0:
My HotCool case has a cutout for it. And it does exist.

*edit*

Or I fail to detect sarcasm.
[Nexus 9 General] johnbrighton:
for the doubters....

https://plus.google.com/u/0/1147418...6108295637549629298&oid=114741811237621957346

As has been pointed out, it only flashes when you plug in charger after a full discharge. It will also flash should you press the power button before there is enough charge to boot the device.
[Nexus 9 General] FD_:
I just found something in Logcat that might be related to the LED not working as a notification LED:

E/lights﹕ write_int failed to open /sys/class/leds/indicator/ModeRGB

It seems some part of the system is trying to set the LED but fails.
[Nexus 9 General] USBhost:
Thanks man will look into it
[Nexus 9 General] gladiac:
Hey there,

I had a little dive into this topic because I really want that indicator LED to be usable. In the AOSP device tree there is the ueventd.flounder.rc which has the following definition in line 65:

/sys/devices/platform/tegra12-i2c.1/i2c-1/1-0032/leds/indicator ModeRGB 0660 system system

It shows that at some point there was support for that LED. In sysfs, inside of /sys/devices/platform/tegra12-i2c.1/i2c-1 the directory 1-0032 does not exist on our devices (anymore).

In AOSP the kernel source history only starts at the time of release of the flounder - which is sad because it seems like the LED was enabled in January 2014 and was disabled later in June. Those changes would have shown us how to enable the indicator led. See:

led-driver-added

led-driver-removed

Well, looking at the kernel source things become complicated since I'm not a driver/hardware/embedded guy. The following files look interesting for investigation:

arch/arm/mach-tegra/board-flounder.c (board-flounder.h)

arch/arm/mach-tegra/tegra-of-dev-auxdata.h

drivers/i2c/busses/i2c-tegra.c
[Nexus 9 General] octagonPerfectionist:
You should contact Franco of Franco Kernel fame, he said he'd look into this for his nexus 9 kernel. There's a chance he might be able to do something about this.
[Nexus 9 General] USBhost:
I enabled the led like flar2

but I got a kernel panic

Because the address to enable the led did not reply

from address 0×32
[Nexus 9 General] Master05:
So right now there is no way that it can ever be used?
[Nexus 9 General] Zeeshan2304:
Can we expect that future updates from google will enable the led?

If not, can we expect that Cyanogen (or someone equivalent) can embed something into android 5.x for the working of the led?
[Nexus 9 General] R_Brizzle_02:
Antenna

You are wrong it is an antenna I have a black Nexus 9 and it's wifi and I have it so...
[Nexus 9 General] mhannigan:
This is probably the coolest thing I have ever seen on XDA!
[Nexus 9 General] gladiac:
Well, there is not a whole lot to "expect" from google since they were the ones who disabled the LED to begin with. Furthermore, Cyanogenmod will only be able to enable the LED if some community member finds a way to make it work. Till now, nobody was able to enable the LED apart from inside the initial bootloader via connecting the power cord when the battery is completely discharged.

I tried to reenable the LED controller by modifying its driver a while ago but eventually gave up on it because of the lack of time. I might invest some more time in the future but work and university are a higher priority right now.

Maybe someone else is gonna find a solution but there are no guarantees in live apart from death.
[Nexus 9 General] scottjal:
I find it fascinating that Google never got this working.
[Nexus 9 General] jantle:
LED is working

https://www.youtube.com/watch?v=LHUDG2YQyTs

edit: couldn't embed video, so just posted the link
[Nexus 9 General] USBhost:
for android M?
[Nexus 9 General] tysj:
Video shows Dirty Unicorns on 5.1.1.
[Nexus 9 General] USBhost:
so he fixed it?
[Nexus 9 General] andreimarinescu:
I've been running DU 9.3 Stable for over a month now. Not sure about the kernel modifications, but this testing app isn't part of the ROM. I'd love to know some more about the APIs used, I could cook up a notifications mirror service that flashes the led automatically. Also, I understand it's supposed to be an RGB led, any luck in changing the color yet?
[Nexus 9 General] lilliput222:
i have no light bleed issue regardless the built date is Oct , I cant describe u my happiness:D , however i have high temp issues and i cant describe u my sadness :crying:
[Nexus 9 General] NYCHitman1:
That's interesting considering that I haven't touched anything for the LED lol.
[Nexus 9 General] dictionary:
I'm not so sure if it's due to the ROM, or if the person who developed the app figured something out, and added the correct modules. Very promising though.
[Nexus 9 General] cLeAv0:
I hope you could share the source or something. So people can have their LED :) This is XDA after all.
[Nexus 9 General] lilliput222:
yes theres notification led .. installed Broken 2.4 Official on low battery , during installing apps battery completely went down and shut off .. plugged in Ac adapter .. led flashed 3 times :D

Even screen guard i bought from local shop today has led holes

---------- Post added at 08:07 PM ---------- Previous post was at 07:59 PM ----------

No the notification led is at middle bottom of screen
[Nexus 9 General] andreimarinescu:
[MENTION=309935]jantle[/MENTION] could you please post some more details on this? I'm really curious to test this out :) Thanks.
[Nexus 9 General] jantle:
The previously mentioned LP5521 RGB-LED driver is not used in Nexus 9 any more. It might have been driving a status LED on flounder-dev-boards.

The currently installed LED is just a simple white LED.

No RGB, no PWM for brightness control, no hardware supported features. It only can be turned on and off. Oh, and of course set to blink three times as it can be seen with empty battery.

The LED can be accessed as I2C-device 0x72 on Tegra I2C adapter 0. There are only three different commands, all written to register 0xD0

0x01 will let the LED blink three times.

0x02 will turn the LED on.

0x04 will turn the LED off.

In fact 0x72 is no dedicated I2C device just for the LED.... it is the Sensor-Hub. HTC simply attached the LED to it, most likely to save cost for a dedicated controller Chip.

So instead of just activating a new driver for the LED, the driver for SensorHub has to be extended. Attached you find a patch to let the LED appear as LED device in /sys/class/leds.

Luckily for those who don't want to patch the kernel there is a different way to access the LED. The driver for SensorHub exports the LED as a "Sensor device". Simply execute (as root):

echo 0 > /sys/class/htc_sensorhub/sensor_hub/led_en to turn LED off

echo 1 > /sys/class/htc_sensorhub/sensor_hub/led_en to turn LED on

Unfortunately kernel has some issues with LED. So I couldn't build a working kernel with LED-triggers enabled. The kernel just wouldn't boot. I didn't investigate this any further... This means currently there is no kernel-space LED control... Hopefully someone more experienced dev can find the issue.
[Nexus 9 General] USBhost:
https://github.com/USBhost/FIRE-ICE/commit/658a35962b64dc8c597db835c391727cb68678bb

https://github.com/USBhost/FIRE-ICE/commit/f380148720e5edf66b44d09d67e536fd0a12cef3

man the led is messed up!

and the TRIGGERS are messed up too

well here you go to test them
[Nexus 9 General] gladiac:
Hi [MENTION=5501864]USBhost[/MENTION],

since you added some LED support to your own kernel... how much is missing to have a simple on/off-LED in Android? Is only the userspace part missing or does the kernel side need more work too?
[Nexus 9 General] USBhost:
O yes the kernel needs work

Or a workaround that I not in the slightest know how to fix
[Nexus 9 General] gladiac:
Oh look: http://review.cyanogenmod.org/#/c/109886/. Seems like someone at cyanogenmod figured out a simple way to enable the LED.
[Nexus 9 General] FieryDragonLord:
Doesn't seem to be fully functional just yet. The LED just stays on whenever there's a notification for as long as the screen is off. I tried changing the settings under Display & lights and the light is constantly on instead of flashing.

Perhaps they'll fix it soon?

(CyanogenMod 12.1 nightly build 10/01/2015 with stock CM kernel.)

—DragonLord