yashsingh1/xdaforums huggingface dataset:
[Sony Xperia C5 Ultra] CTXz:
I already managed to compile it (Check xperia C5 Kernel for commits) but due the lack of documentation about how to repack 64bit mediatek zimg and dt images without a pregiven ramdisk or boot.img is nearly impossible for me.
[Sony Xperia C5 Ultra] gsser:
There is no success at all guys.... Can you please at least download kingroot and request root for this device..... There is nearly 500 people already requested but the amount is not enough...
[Sony Xperia C5 Ultra] Neuthrones:
whether the platform is the basis for getting root? if it is true based platform maybe I can help. c5 same platform lenovo a7000.

Thx

= i try it , not work =

Sorry
[Sony Xperia C5 Ultra] CTXz:
The a7000 uses arm (32bit) where else sony had to go extra special and unnecessary and chose to compile arm64 (64bit) which makes building the kernel extra complicated (due the lack of documentary on about how to build arm64)
[Sony Xperia C5 Ultra] Richard_Wagner:
After four Months... Nothing.

It's been four months since SONY Xperia C5 Ultra E5506 was released and nothing useful about getting root for this device is found anywhere... How long will it take...? What exactly is missing...? «Kingo ROOT» and «KingRoot» are completely useless: These programs are so much ado about nothing! I know SONY is having a little hard times and... Are they helping its users/developers to improve Xperia to make it better and more useful than other brands. Can you please tell me what has to happen and what will be the best procedure for rooting purposes once that which is missing finally appears...? Is there any way to help in this goal for non-experts like me. Thanks in advance for any clever answer and/or help.
[Sony Xperia C5 Ultra] CTXz:
A proper documentation to compile their mediatek 64bit kernel is missing.
[Sony Xperia C5 Ultra] gsser:
Cant we bribe someone?
[Sony Xperia C5 Ultra] Richard_Wagner:
MediaTek & Sony

MediaTek & Sony are not helping I guess? Is there any way to make them help or is it just pure non-sense...?
[Sony Xperia C5 Ultra] REDOTHELLO:
First, you should confirm that it is possible to unlock the boot loader of your phone by checking the service menu. In your phone, open the dialler and enter *#*#7378423#*#* to access the service menu.

In your phone, tap Service info > Configuration > Rooting Status. If Bootloader unlock allowed says Yes, then you can continue with the next step. If it says No, or if the status is missing, your device cannot be unlocked.

In next update of sony you see yes .
[Sony Xperia C5 Ultra] terryowen:
I just checked my new C5 and my phone says "Bootloader unlock allowed:Yes". I don't really care about flashing custom roms, I just want a stock, rooted phone. But I don't spend much time with Android anymore, so correct me if I'm wrong - don't you need a custom recovery for either one?

I would contribute to a "root the C5 Ultra" fund.
[Sony Xperia C5 Ultra] gsser:
me 2 m8. mine is allowed to unlock. i really want root for this beast....
[Sony Xperia C5 Ultra] REDOTHELLO:
I almost managed to compile the kernel cosmos xperia c4 MT6752 with linaro -aarch64 but after 30mn i have this error :

LD drivers/misc/mediatek/connectivity/conn_soc/drv_wlan/mt_wifi/wlan/wlan_mt.o

LD drivers/misc/mediatek/connectivity/conn_soc/drv_wlan/mt_wifi/wlan/built-in.o

LD drivers/misc/mediatek/connectivity/conn_soc/drv_wlan/mt_wifi/built-in.o

LD drivers/misc/mediatek/connectivity/conn_soc/drv_wlan/built-in.o

LD drivers/misc/mediatek/connectivity/conn_soc/built-in.o

LD drivers/misc/mediatek/connectivity/built-in.o

make[2]: *** [drivers/misc/mediatek] Erreur 2

make[1]: *** [drivers/misc] Erreur 2

make: *** [drivers] Erreur 2

if you want I post tutorials CTXz
[Sony Xperia C5 Ultra] mayanks15603:
On my device it says not allowed .. :/
[Sony Xperia C5 Ultra] bigrammy:
Rooting and thoughts xperia C4 and C5

Well I purchased the Xperia C4 out of curiosity to see what a Flagship company could do with the Mediatek chipset. :fingers-crossed:

I own many Mediatek based phones and I am a big fan of the chipset which gets a bad rap due to the phone manufacturer's inability usually. :rolleyes:

I truly expected more from Sony but I have to say the C4 is probably the worst device I have bought :laugh:

Sony have done a proper bodge job on it the build quality is far far worse than I have seen from any of the Chinese brands out there!! I could go on for hours about it but that would be OT. :crying:

Next the Software well it seems Sony even managed to bodge this too :eek:

First they used 5.0 which is renowned for its problems instead of using 5.1.

Next it seems they thought it would be a good idea to bootstrap the device :laugh: WTF are you thinking Sony :(

So no wonder it's glitchy. :mad:

By the pointless "Hacking" and Bootstraping the PROPER Mediatek pre-loader and software we can no longer use Mediatek's SPFlashtool (The proper Flashtool) so we are now unable to make a full backups and restores of the phone. This combined with the Hacked and Locked bootloader has rendered the phone pretty much unrootable. :crying:

I have tried all the standard methods and even a few manual hacks but no success thus far. :cowboy:

I have maybe 2 possible options left to try but I am busy with work just now. :crying:

1. Build/port a recovery (TWRP) and see if I can get Fastboot to boot it

Fastboot boot TWRP.img

2. Hack an Official OTA update.zip to flash SuperSU. (Depending where it downloads to of course bla bla bla)

If someone could extract the actual kernel and ramdisk from the boot and fotaKernel files Here Copy.com for me that would be great so I can then take a detailed look at it while at work. If not I will have to wait till probably Saturday before I get a chance. :cowboy:

I am still a little stunned by this Sony hatchet job which seems distinctly amature and from I can see it's like we are running a virtualbox OS instead of just installing the OS proper and as everyone knows running a VB is ok for a quick test but not for a user release :cowboy:
[Sony Xperia C5 Ultra] REDOTHELLO:
Each device has different partition for the kernel.

i need /dev/block/mmcblk0pX "unknow X "

i extracted file .elf i need to repack but unknow X for xperia c4 dual
[Sony Xperia C5 Ultra] gsser:
http://xdaforums.com/moto-g-lte/general/rooting-moto-g-2015-lte-xt1078-t3086069

Would this work for us?
[Sony Xperia C5 Ultra] malih16:
what the... It sounds like Sony really dislike people tweaking the device and go out of their way to make sure we don't.

Guess that teaches me not to buy any Mediatek phone from Sony, sounds like what happened to the original Xperia C.
[Sony Xperia C5 Ultra] bigrammy:
Job Done!!

See Here. http://xdaforums.com/showpost.php?p=64629647&postcount=61 ;)
[Sony Xperia C5 Ultra] laimingju:
confirm on my E5563
[Sony Xperia C5 Ultra] jose.escamilla87:
Thanks a lot!!!!!!!

Thanks a lot!!!!! I was trying to reply on your post but i can't since i'm new here in xda, i've read and find a lot of info here, but never register until now, because i wanted to thank you and confirm workin on my C5 Ultra E5506.

Great Job man!!!! :good::good::good:
[Sony Xperia C5 Ultra] BadoM:
errr

i am so new on this rooting stuff.

but while i did some research, i come across that sony did provide bootloader for most of its device...

... c5 is not on the list.

are there any ROOTING FOR DUMMY around?
[Sony Xperia C5 Ultra] skylinestan:
Hey bro [MENTION=594062]laimingju[/MENTION].. Is your C5 Ultra E5563 bootloader unlock status (yes or No)? If (No) can u describe how u manage to get through the bootloader unlock process.. But If your bootloader unlock status (yes) then nevermind.. Thank for reply
[Sony Xperia C5 Ultra] AnandSadar:
I previously had Bootloader locked, after manually flashing firmware 29.0.b.1.55 downloaded using xperifirm I got "yes" status for bootloader unlocking. I'm using E5563.
[Sony Xperia C5 Ultra] likit.sas:
Thanks You, My E5553 rooted...:good:
[Sony Xperia C5 Ultra] skylinestan:
Can u shed me the light to manually flash the firmware?are u using flashtool to flash the firmware?
[Sony Xperia C5 Ultra] AnandSadar:
Follow guidelines on this link http://www.xperiablog.net/2015/03/1...peria-lollipop-using-xperifirm-and-flashtool/
[Sony Xperia C5 Ultra] skylinestan:
Thanks for the info..will go through and see hows the outcome..:good:
[Sony Xperia C5 Ultra] acusaangelito:
rooted Xperia C5 Ultra E5553?

Sir can you show me how you rooted your Xperia C5 Ultra E5553?

I would greatly appreciate it if you kindly show me...pls?
[Sony Xperia C5 Ultra] skylinestan:
08/008/2016 23:08:04 - INFO - Please connect your device into flashmode.

08/008/2016 23:08:16 - INFO - Device connected in flash mode

08/008/2016 23:08:16 - INFO - Opening device for R/W

08/008/2016 23:08:17 - INFO - Reading device information

08/008/2016 23:08:17 - INFO - Phone ready for flashmode operations.

08/008/2016 23:08:17 - INFO - Opening TA partition 2

08/008/2016 23:08:17 - INFO - Current device : E5563 - XXXXXXXXXX- 1296-9001_R4A - 1295-8228_29.0.B.1.55 - GENERIC_29.0.B.1.55

08/008/2016 23:08:17 - INFO - Closing TA partition

08/008/2016 23:08:17 - INFO - Start Flashing

08/008/2016 23:08:17 - INFO - Processing loader.sin

08/008/2016 23:08:17 - INFO - Checking header

08/008/2016 23:08:17 - INFO - Flashing data

08/008/2016 23:08:17 - INFO - Loader : S1_Root_4154 - Version : MT67X2_19 / Boot version : S1_Boot_MT6752_TC9SP_16 / Bootloader status : NOT_ROOTABLE

08/008/2016 23:08:17 - INFO - Max packet size set to 8192K

08/008/2016 23:08:20 - INFO - Making a TA backup

08/008/2016 23:08:20 - INFO - Opening TA partition 1

08/008/2016 23:08:20 - INFO - Start Dumping TA partition 1

08/008/2016 23:08:20 - INFO - Finished Dumping TA partition 1

08/008/2016 23:08:21 - INFO - TA partition 1 saved to C:\Users

08/008/2016 23:08:21 - INFO - Closing TA partition

08/008/2016 23:08:21 - INFO - Opening TA partition 2

08/008/2016 23:08:21 - INFO - Start Dumping TA partition 2

08/008/2016 23:08:21 - INFO - Finished Dumping TA partition 2

08/008/2016 23:08:21 - INFO - TA partition 2 saved to C:\Users

08/008/2016 23:08:21 - INFO - Closing TA partition

08/008/2016 23:08:21 - INFO - Parsing boot delivery

08/008/2016 23:08:21 - INFO - No flash script found. Using 0.9.18 flash engine

08/008/2016 23:08:21 - INFO - Opening TA partition 2

08/008/2016 23:08:21 - INFO - Writing TA unit 00002774. Value : [01]

08/008/2016 23:08:21 - INFO - Closing TA partition

08/008/2016 23:08:21 - INFO - Processing partitions.sin

08/008/2016 23:08:21 - INFO - Checking header

08/008/2016 23:08:21 - INFO - Flashing data

08/008/2016 23:08:21 - INFO - Phone boot version : S1_Boot_MT6752_TC9SP_16. Boot delivery version : 1292_1556 S1_Boot_MT6752_TC9SP_16

08/008/2016 23:08:21 - INFO - Going to flash boot delivery

08/008/2016 23:08:21 - ERROR - missing

08/008/2016 23:08:21 - INFO - Some files are missing from your boot delivery

08/008/2016 23:08:21 - INFO - Opening TA partition 2

08/008/2016 23:08:21 - INFO - Processing boot.sin

08/008/2016 23:08:21 - INFO - Checking header

08/008/2016 23:08:21 - INFO - Flashing data

08/008/2016 23:08:21 - ERROR - Processing of boot.sin finished with errors.

08/008/2016 23:08:21 - INFO - Ending flash session

This is what i get evertime when i try to flash a new firmware for my C5 ultra E5563...Damn fustrated !!..Does anyone know whats the reason i get this error....Please shed some lights here
[Sony Xperia C5 Ultra] AnandSadar:
Did you delete winfo.xml before creating FTF file???
[Sony Xperia C5 Ultra] skylinestan:
Yes I did. But no use same error
[Sony Xperia C5 Ultra] mayanks15603:
Bro can you please give some detailed steps to flash the device and then unlock the bootloader and then root the device .. Please ?
[Sony Xperia C5 Ultra] skylinestan:
EDIT

Finally!!! I've sucessfull to ROOT my C5 Ultra E5563....:laugh::laugh::laugh::laugh:

Well, seems i have done some stupidly things in the past..for all people with C5 E5563 bootloader unlock status (No)..please follow my instruction in order to get it work as bootloader unlock status (Yes)..:)

1)As i brought my C5 ultra..i have updated the firmware by OTA...and it went well and i just leave it that way until now

2)try to unlock bootloader but not successful at all by using plenty of flash tool...

3)The cuplrit here....is that i head over to Sony PC companion and straight away repair my C5...

4)That's it!!! it works!! i went back to ADB and check on bootloader status and it went to (Yes)!!:good:

5)Starting from there i follow [MENTION=3924647]bigrammy[/MENTION] tutorial and its finally ROOTED my C5 Ultra!!!:highfive:

Thanks [MENTION=3924647]bigrammy[/MENTION] [MENTION=5752640]aboyazan78[/MENTION] [MENTION=6156986]AnandSadar[/MENTION] for helping me out alot in this post..Thank you so much for all your contribution here...CHEERS!!!
[Sony Xperia C5 Ultra] mayanks15603:
Bro the steps given there in the op's post are a bit confusing, can you please give me the exact steps for unlocking and rooting.. Please man I'll be very grateful ! Please ?
[Sony Xperia C5 Ultra] skylinestan:
Dude as i also following Bigrammy instruction post to unlock bootloader and root.Apart from that is i use Sony pc companion to repair my phone to gain back bootloader unlock status (yes) before i unlock bootloader

---------- Post added at 05:05 PM ---------- Previous post was at 05:00 PM ----------

Edit after ROOT

Seems like theres some root apps that culprit making the bootloader status to change..i now on the bootloader secure status from (No) become back to (yes) and i have lost the TWRP recovery.Apart from that my phone is still in ROOT mode..i can use any root stuff but is that i can't boot into recovery mode...:eek::eek::eek:
[Sony Xperia C5 Ultra] mayanks15603:
Woah that's kinda weird !

And yeah i am downloading the firmware through sony companion.. Slow internet so have to wait..

But i just tested fastboot and the command "fastboot getvar all" just keeps waiting for device.. I have installed adb and fastboot drivers as far as i know.. But any solutions? Or i should uninstall all my drivers and then reinstall? In that case how and from where?

I need help on this coz fastboot needs to work for the recovery.. Help me out please...
[Sony Xperia C5 Ultra] tishkoff:
Hi. I have same questions about root and recovery:

1) how can I UNroot my Xperia? With PC Companion?

2) where I can get stock recovery and how I can return that?

3) anybody flash stock by Flashtool after rooting?

Thx for the answers
[Sony Xperia C5 Ultra] VabicArm:
Kernel gaming for xperia please
[Sony Xperia C5 Ultra] b8ee469a:
[deleted]
[Sony Xperia C5 Ultra] gsser:
For lollipop firmwares, one click root, kingroot etc works.

For marshmallow firmwares you have to use bigrammy's guide otherwise you cant root it
[Sony Xperia C5 Ultra] gsser:
https://xdaforums.com/xperia-c5-ultra/development/mm-root-advanced-volunteer-required-t3469204
[AT&T HTC One (M8)] jfalgout2003:
Thanks to the incoming call issue due to VoLTE, I've decided to return my phone to stock. I read a post that said all I'll have to do is lock my bootloader and use an RUU. Well the RUU freezes. I've tried it three times, waiting for about 30 minutes each time, but never could get pass the ROM loading stage. I don't quite know what the issue is. I've tried on 2 different laptops, both running Windows 7 Pro. I'm currently running Venom 4.6.0 with TWRP recovery and S-ON. I downloaded 4.28.502.1 RUU as that was the stock ROM I was running before going to Venom. Any thoughts or suggestions?
[AT&T HTC One (M8)] Uzephi:
Sometimes apps like HTC sync will cause issues with ruu exes. Be sure nothing else that can talk to the phone is installed.
[AT&T HTC One (M8)] jfalgout2003:
Thanks, I'll try with sync manager not running.
[AT&T HTC One (M8)] Uzephi:
Be sure it is uninstalled. I tried with it "not running" and still had the issue. I had to completely uninstall HTC Sync.
[AT&T HTC One (M8)] jfalgout2003:
Thanks for the advice. Finally have my phone back to stock. It's quite unfortunate, but I'll have to live with the bloat until there's a fix for the VoLTE issue on custom ROMs.
[Samsung Gear S] mansisingh:
Looking for SM-R750T tmobile version Gear S QCN file. If anyone has or can pull from their watch.

Thanks
[Samsung Gear S] zuessler:
just curious

any luck. trying to find the recovery img for the sm-r750t
[Moto G 2015 Q&A, Help & Troubleshooting] ollieshikarii:
Hi guys, Im new to all this rooting stuff and whilst in twrp recovery, I accidentally wiped my OS. Please help me, My phone is now a potato and have no clue what to do.

My phone is a Moto g xt1072

I can access twrp and bootloader

Also my phone was stuck on the bootloader animation on the start up, this was the reason i accidentally wiped my OS :p :(

And also i do not own an sd card for my phone yet, So using that method is out of the equation
[Moto G 2015 Q&A, Help & Troubleshooting] tuxtitanium:
Hey I hope you have all your important files and other data clouded or backed-up somewhere. Sounds like you bricked your phone, and sounds like you have a moto g 2nd gen (Titan). Here's a link to the thread on factory firmware images: xdaforums.com/moto-g-2014/general/moto-g-2014-factory-firmware-images-t2869485

I recommend looking for the factory firmware image for your xt1072 and flashing. You'll get a fresh boot (like a factory reset), so make sure you have a back-up of any important files prior to doing this. In TWRP recovery you might be able to see files, but that might not be too useful without being able to copy them to a computer. You'll likely find more relevant info on threads that are related to your phone model. Good luck.
[Moto G 2015 Q&A, Help & Troubleshooting] ollieshikarii:
Cheers man, I shall try and give this a go.... I didn't backup anything :crying:
[Moto G 2015 Q&A, Help & Troubleshooting] ollieshikarii:
Ok, so i have downloaded the factory xt1072 file from what i found on the thread you sent me. How do i install it on my device :)
[Moto G 2015 Q&A, Help & Troubleshooting] tuxtitanium:
Your best bet is taking this to the moto g 2nd gen (Titan) section on the forum, other users of the same phone would be better help for this.
[Moto G 2015 Q&A, Help & Troubleshooting] sconetto:
have you tried to download some rom to your SD and try to flash it?
[Moto G 2015 Q&A, Help & Troubleshooting] tuxtitanium:
ollieshikarii would need to be able to transfer a file to the SD card (internal storage), which I think requires being able to boot the phone.

Rule of thumb, keep all important data on a phone backed up to the cloud, and larger files on a memory card if possible.
[Moto G 2015 Q&A, Help & Troubleshooting] sconetto:
remove the SD and plug it on the computer to transfer the files, nope?

sorry about my English :) trying to help

Enviado de meu MotoG3 usando Tapatalk
[Moto G 2015 Q&A, Help & Troubleshooting] christopherrrg:
The answers here aren't exactly clear but follow the above poster and use an SD card, thank moto for putting them in afterwards. ;)
[Moto G 2015 Q&A, Help & Troubleshooting] ollieshikarii:
Thanks guys for the help, I have managed to reinstall my OS onto my phone using fastboot and have actually managed to root it as well. Thanks :)
[Moto G 2015 Q&A, Help & Troubleshooting] tuxtitanium:
Please edit thread title as "solved".
[Galaxy S 5 Q&A, Help & Troubleshooting] zoltrix:
My girlfriends phone screen died, but the phone still functions

Airplane mode / flight mode was turned on prior to the screen dying

is there any way to disable airplane mode through s voice or something similar?

maybe someway through odin or some third party app that i can install to the phone through the google play store on the web?

Telus sm-g900w8 on 5.1.1
[General Questions and Answers] benzondc25:
Guys please help me with this problem. I update my facebook lite, then suddenly all my app has stopped even the systemui, com.process.gapps , android.process.acore , and com.android.phone. I factory reset/ wipe data my android using CRT recovery, then I reboot my android but nothing happen all my data are still there and the error keep popping on my screen.

I flash stock and new rom but my data are still there, I use spflashtool to flash new recovery but nothing happen too.

Phone: ALCATEL ONE TOUCH S'POP 4030E

Rom: Fushion v2

Rooted: Yes

:( please help me.
[General Questions and Answers] droid_god:
Just reset from the android settings amd it will be done.
[General Questions and Answers] benzondc25:
I tried it , i press "ERASE BUTTON" and its not working.
[General Questions and Answers] droid_god:
Ok. Can you tell me full form of your recovery. I think it will be clock work mod revovery or some other
[General Questions and Answers] benzondc25:
by the way I forgot to thank you first for fast respond. Ok I use Carlive Touch Recovery v2..7
[General Questions and Answers] droid_god:
So just uninstall the facebook app anf try it
[General Questions and Answers] benzondc25:
I already do not but when I reboot my phone the app is still there.
[General Questions and Answers] droid_god:
hmm i think you should format the system partition and data partition also and then flash a rom or restore the backup in recovery.

that should solve the problem

samsung galaxy core 2
[General Questions and Answers] benzondc25:
I already do that :( nothing happen!
[General Questions and Answers] droid_god:
Did you have any custom rom for your device.

And a stock rom (pure not backup).

If yes flash acustom rom and then revert back to stock one
[Galaxy Note5 Q&A, Help & Troubleshooting] Nutzzer:
All,

Been testing the slow motion video on my Note 5 and the quality is pretty bad compared to the Iphone 6. I been researching a bit and read that the Note 5 slow motion records at 720p [MENTION=512813]120[/MENTION]fps as oppose to the Iphone 6 240fps.

Was wondering if there is other work arounds for a better slow motion effect. Like record a regular video at 1080p @60fps and video edit to slow mo? Is that possible or are we stuck with what we have? Also, if there is any type of editing, would like to edit within the phone, not export it to my laptop and do the editing.

Thanks!
[Sprint Samsung Galaxy Note5] rlmiller:
I have once again put together a zip file with a collection of hundreds of some of my favorite sound files for the note 5. I am 99.9% sure they still work in the older devices i have made this for in the past. just back up in case it won't.

Simply flash in recovery. If you end up with duplicate files, simply go to settings>applications>application manager>(swipe over to the the right to ALL) (then scroll down to) >media storage and select it.....then select CLEAR DATA then reboot.

I hope you enjoy it.

Robby

INSTALL INSTRUCTIONS

Using a PC, Download the ZIP HERE and transfer to phone.

MD5 b75ef217dc6cb622f6bae5d80f6b11fe

(sometimes downloads directly to phone get corrupt for some reason...check MD5 above to be sure if you use the phone instead of pc.

BACKUP (just in case)

Go to Recovery...(I recommend philz_touch_6.59.0-820876114.zip since it recognizes OTG/USB )

find and select install zip

look for your stored location of my zip file...ROBBY N5 SOUNDS 9-12-15.zip... and select it.

FLASH and profit.

I have a SPECIAL HANGOUTS thread for SPRINT NOTE 5 OWNERS.

I would like to add ALL of you to it.

PLEASE PM ME YOUR GMAIL EMAIL ADDRESS SO I CAN ADD YOU​
[Sprint Samsung Galaxy Note5] GAPO:
Flashed and working perfectly. Tons of great ringtones, notifications, and even alarms! Thanks!
[Sprint Samsung Galaxy Note5] fsunoles101:
Thanks Robby.
[Sprint Samsung Galaxy Note5] Chaz187:
Nice Job man....

Thanks,

Chaz187
[Sprint Samsung Galaxy Note5] sml2004:
Works good thanks
[Sprint Samsung Galaxy Note5] elwood:
Thanks [MENTION=2899810]rlmiller[/MENTION] these work great
[Sprint Samsung Galaxy Note5] bigmase23:
Hey bro! Will this flash ok on tmo?
[Sprint Samsung Galaxy Note5] rlmiller:
Hey [MENTION=4054596]bigmase23[/MENTION] long time buddy.... i dont know. If you have a backup. ..try it out and let me know.

sent from this little thingy in my hand N920P
[Sprint Samsung Galaxy Note5] ebs512:
These are awesome Robby! Is there a way to change the touching of the screen audio from a water droplet to something else? The only option I see is to turn pressing the screen sound on or off