yashsingh1/xdaforums huggingface dataset:
[Galaxy S 4 Q&A, Help & Troubleshooting] madmediapro:
Did you ever get any info or help with this?

I did the same thing. I did make a NV Backup. Copied them back but that didn't change the no signal problem. I have tried odin back stock root and unrooted. Some how you have to get out of the DM/DUN/RmNet over HSUSB setting and back in DM/DUN over HSIC but I can't find a way. Can you get into the *#9090# without it being blanked out settings?
[Galaxy S 4 Q&A, Help & Troubleshooting] d3v147:
Did either of you ever manage to solve this? I have the same problem.
[Galaxy S 4 Q&A, Help & Troubleshooting] madmediapro:
I bought a new phone for my girlfriend a s4 and copied the nv items from her new phone to my phone. I had service, changed esn spc and reflashed my phone. Everything is working great now
[Galaxy S 4 Q&A, Help & Troubleshooting] d3v147:
Great news! Any chance of getting a copy of the NV items so I can try this aswell?
[Galaxy S 4 Q&A, Help & Troubleshooting] terminator1983:
Hi , can u plz tell me where is nv_data on s4 i9505 bcoz i can't see nv_data on i9505 efs folder.
[Galaxy S 4 Q&A, Help & Troubleshooting] madmediapro:
If snow is coming in like its suppose to in va tomorrow. If not I will do it this weekend. I will tell everyone in detail what I did and what programs I used to restore my phone to get service back on my phone.
[Galaxy S 4 Q&A, Help & Troubleshooting] d3v147:
That would be amazing. I look forward to your post.
[Galaxy S 4 Q&A, Help & Troubleshooting] terminator1983:
i'm looking forward to your post.
[Galaxy S 4 Q&A, Help & Troubleshooting] madmediapro:
I have to start out by saying that my phone is Sprint Samsung S4(SPH-L720). I’m not sure if this is going to help you. I came here for help. Hoping that I can help out because this site has helped me so much the last four year I have been here. And of course I’m not responsible in anyway for what you do to your device. Just posting what I did to fix my phone. Programs used Win7 64-bit (WIN XP should work), Odin3 v3.07, EFS_Professional_2.0.72, QPST 2.7 Build 422, HxD, DFS CDMA Tool Demo.

My old phone and new phone I bought did not have knox bootloader on them.

First thing I did to both was flash (Oldest Firmware) SPH-L720_MDC_Rooted_Restore.tar.md5 with Odin3 v3.07. Updated both SuperSU and BusyBox from PlayStore on both phones.

Then I used EFS_Professional_2.0.72 to Backup all NV Items from new phone that had cell service. Turned phone off and pulled battery. Then Formatted all NV Items on old phone and restored backup from new phone. Restarted and had cell bars in status bar. So I knew I was good to good with flashing my service back on the device.

Using QPST 2.7 Build 422, HxD, and DFS CDMA Tool Demo verison will work just fine to do what you need to do. Go to Device Manager and find what com port your device is on. Open QPST Configuration click “Add New Port…” the com port will not be visible but if you type “COMXX” in both port and port label it will be added to qpst configuration. Example is my port COM23 so I added COM23. Close window and open DFS connect com and send spc and pwd close DFS. Note: “You have to send SPC then Pwd with DFS before using any programs on QPST.” Open EFS Explorer send spc go to directory nvm\num copy items 0 85 1943 to desktop. Use HxD to zero out items. Then delete items from nvm\num directory on EFS Explorer. Then copy the zeroed out items back to phone. Reset phone and open DFS and restore original setting that came with the phone. You should be able to restore MEID, ESN, SPC, and IMEI with DFS.

I hope XDA Developers will understand that this is just restoring your phone back to original state. That is exactly what I did. Hope this helps you.
[Galaxy S 4 Q&A, Help & Troubleshooting] terminator1983:
Thanks for sharing and i don't think it will work on my device i9505 but i do appreciate the work u have shared thumbs up.
[Galaxy S 4 Q&A, Help & Troubleshooting] d3v147:
I still think this may work. I want to attempt but I need a known good EFS pro backup from an i9505. Unfortunately it's not that easy to convince any of my friends to let them tinker with their phones. If somebody could send me one to try I would be hugely grateful.
[Galaxy S 4 Q&A, Help & Troubleshooting] AlanDS:
Using an EFS backup on two phones simultaneously will result in blacklisting of both mobile devices.

So do not try to restore an EFS backup from an usable phone..
[Galaxy S 4 Q&A, Help & Troubleshooting] d3v147:
I did seem MadMediaPro did not encounter this. Also it is unlikely to occur if a SIM is never inserted in the phone. The other possibility is hex editing out the IMEI in the backup.
[Galaxy Note 10.1 Q&A, Help & Troubleshooting] starsky23:
Hi guys,

I seem to be having an issue launching Google Now when swiping from the bottom left. A crossed out alarm clock logo appears instead of the Google white circle.

You can see the logo right next to 'Display'.

Thanks guys
[Galaxy Note 10.1 Q&A, Help & Troubleshooting] Sher The Love:
Have you tried clearing cache and data for the Google search app?
[Galaxy Note 10.1 Q&A, Help & Troubleshooting] starsky23:
Tried it but unfortunately its still not changing from that alarm clock icon :(
[Galaxy Note 10.1 Q&A, Help & Troubleshooting] ckavvouras:
I know that for some reason after I integrated and update for Google now in to my rom that caused Google now to stop working.
[Galaxy Note 10.1 Q&A, Help & Troubleshooting] starsky23:
I figured the problem was to do with the battery mod from Android revolution hd. Hope this thread can be used if this happens to anyone else in the future!
[General Questions and Answers] JustusIV:
I have the most annoying bug when using google music. I am not sure where to post it so it gets seen.

Long story short is on my playlist if i select a song after that it only randomly selects songs after the selected songs in the playlist instead of randomly from the whole playlist.

Super annoying.

Anyways i would love it fixed and would love to report it to the right place. Just don't know where the right place is.
[General Questions and Answers] JustusIV:
Switched back to spotify.
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
Audio Profiles located in Viper4 thread here.

If V4A dont work on many players, try switching to Safe Mode to work with almost any music player.

1. In option, switch to Safe Mode. Reboot, done.

MyAudio Profiles

See the INDEX for profile sharings here: http://xdaforums.com/show...php?p=42584049

My Current Profile (For Earphone, headphone not recommended) - Pure Bass+

FX:

<Headset>

1. Master Power: ✔

2. Playback Gain Control: ✘

3. FIR Equalizer: ✔

(ii) Select Preset: Custom

See: Image

4. Convolver: ✔

(ii) Impulse Response: Sony Xperia Rev2 ClearAudio+

5. Field Surround: ✘

6. Headphone Surround +: ✘

7. Reverberation: ✘

8 Dynamic System: ✘

(iv) Tube Simulator(6N1J): ✘

9. Fidelity Control:

(i) ViPER Bass: ✔

(ii) Bass Mode: Pure Bass+

(iii) Bass Frequency: 60Hz

(iv) Select Bass Boost: 14.0 dB

(v) ViPER Clarity: ✔

(vi) Clarity Mode: OZone+

(vii) Select Clarity: 6.0 dB

10. Auditory System Protection:

(i) Cure Tech+: ✔

(ii) Select Binaural Level: Moderate

11. Master Gate (Limiter): ✘

XHIFI:

<Headset>

1. Master Power: ✔

2. Playback Gain Control: ✘

3. FIREqualizer: ✘

4. Audio Reconstruction: ✔

(ii) Hi Clarity: 50

(iii) Lo Contour: 0

5. Master Gate (Limiter): ✘

Extreeme Clarity Profile (V4A FX & XHiFi Co-exists) - Headset Only

FX:

<Headset>

1. Master Power: ✔

2. Playback Gain Control: ✘

3. FIR Equalizer: ✘

4. Convolver: ✔

(ii) Impulse Response: Sony Xperia Rev2 ClearAudio+

5. Field Surround: ✘

6. Reverberation: ✘

7. Dynamic System: ✘

(iv) Tube Simulator(6N1J): ✘

8. Auditory System Protection (Cure Tech+): ✔

(ii) Select Binaural Level: Moderate

XHIFI:

1. Master Power: ✔

2. Playback Gain Control: ✘

3. FIR Equalizer: ✘

4. Audio Reconstruction: ✔

(ii) Hi Clarity: 50

(iii) Lo Contour: 25

ExplOOit Bass Profile (V4A FX & XHiFi Co-exists) - Headset Only

FX:

<Headset>

1. Master Power: ✔

2. Playback Gain Control: ✔

(ii) Select Effect Strength: Slight

(iii) Max Gain: 4x

(iv) Max Output: -1.9dB

3. FIR Equalizer: ✘

4. Convolver: ✔

(ii) Impulse Response: Sony Xperia Clearbass

5. Field Surround: ✘

6. Reverberation: ✘

7. Dynamic System: ✔

(ii) Select Listening Device: Common Earphone(v2)

(iii) Select Dynamic Bass: 33 Percent

(iv) Tube Simulator(6N1J): ✘

8. Auditory System Protection (Cure Tech+): ✔

(ii) Select Binaural Level: Moderate

XHIFI:

1. Master Power: ✔

2. Playback Gain Control: ✘

3. FIR Equalizer: ✘

4. Audio Reconstruction: ✔

(ii) Hi Clarity: 50

(iii) Lo Contour: 80
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
All your posts are belong to me.
[Sprint Samsung Galaxy S 4 Android Development] sprint_dobbs:
First! Cant wait to try
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
One last one for good luck.
[Sprint Samsung Galaxy S 4 Android Development] mjs2011:
Very cool! Did you create this Rom?
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
Yes, this is

my

ROM and is based off of Stock Odexed.

I prefer Odexed for its compression and speed. I know this makes theming not an option really but I'm more of a performance guy at heart.

Yes, I would take the Civic with a LSX swap over a Maserati.
[Sprint Samsung Galaxy S 4 Android Development] cerj:
Fast is good. Thank you
[Sprint Samsung Galaxy S 4 Android Development] elfeo0:
New modem MF9

Can we flash this rom ( once the download link is ready ) and than flash the new sprint modem update MF9, not OTA way? ( Unknownforce new way )
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
Haven't looked into this yet but based off of the post it seems like it should work and retain root.

I have to head to bed soon for work tomorrow so I won't be able to check into it tonight.
[Sprint Samsung Galaxy S 4 Android Development] Son Rise:
Am I seein a new rom coming? Or is something wrong with my eyes. I can't tell. Someone help meeee
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
Nope, your eyes are ok man.

Was going to originally keep this for myself but figured I'd share with you guys. :)
[Sprint Samsung Galaxy S 4 Android Development] Son Rise:
Omg so it is real. Cant wait! But dont tell me this rom comes with a launcher
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
This rom only comes with the touch wiz launcher. I prefer it to any other launcher personally. No nova, AWD, or any other launchers in here man.
[Sprint Samsung Galaxy S 4 Android Development] Son Rise:
I like your style brother. Will this rom be up. By tomorrow
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
Should be up by tomorrow at 7 am eastern time when I get up for work. Internet is slow at home for me so the upload takes a bit.
[Sprint Samsung Galaxy S 4 Android Development] Son Rise:
Oh ok sounds good bro. Once again u are becoming a rom king. I hope u get so much support in the future:)
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
I appreciate the encouragement, I'm just trying to bring some activity to sprint and it's development section. I just hope everyone understands the point of having an odexed rom. :p
[Sprint Samsung Galaxy S 4 Android Development] gershee:
yea but you have to Odin the modem from a PC.
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
I won't be updating this ROM to MF9 until a stock odexed MF9 rooted ROM is posted for stability reasons.
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
Sounds good, keep me posted
[Sprint Samsung Galaxy S 4 Android Development] xNicoyAx:
I found something. It's more a visual flaw, but doesn't effect performance.

The wifi signal bars stay gray instead of lighting white, like it's showing signal. But I actually have signal. Notice it does this after you haven't used data for a bit. Wifi still works.

Edit: After backing up to your beta MF9, it's possible this is happening because of the Xposed addition. Kinda like that battery icon thing I noticed
[Sprint Samsung Galaxy S 4 Android Development] loc125:
hey, one question about the rom. everytime i restart i get "android is updating" screen after the sprint splash screen. is this normal everytime i reboot/restart my phone?
[Sprint Samsung Galaxy S 4 Android Development] KStyles69:
testing

Downloaded and installed the mf9 beta. Not sure if im missing a setting but I cant get anything to work on the xposed app. Tried restarting when prompt like 10 times... including soft reboot. Everything from clock... colors... notification changing.... nothing. I did accept it at superuser
[Sprint Samsung Galaxy S 4 Android Development] DAFTEK:
Wanted to try this but download is slooow, 3 days? wtf. just before this i downloaded forcerom in 8 minutes. any mirrors available for mf9?:silly:

Edit: Stopped the download, reloaded the page and got mirror #6 IL, it went slow at first so i went to make coffee, came back 10 min later it was downloaded. Going to give this a shot coming from forcerom...
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
I think this is also due to some possible additions of dodexed files to an odexed system. I don't believe the file medications are listed as odexed or dodexed within the application itself which makes it difficult.

This is happening to a lot of people, is your modem updated to MF9? If not this is why. Do NOT accept it as it will fail and could cause file issues. Sprint can probably see that your modem isn't up to date and is trying to push the update still.

Did you run Xposed framework prior to launching Nottach Xposed?

8 minutes? Wow, that's pretty quick what are you running T1? T3?

Glad it downloaded for you, android file host is migrating and adding servers so there's been some issues lately I guess, sorry guys.
[Sprint Samsung Galaxy S 4 Android Development] 11secEVO:
Hmm sounds like only problems. I got sick and tiered of all this crap so I tried to go back to stock. Hahaha good luck. All the stock roms have been corrupted. F*** me!!! I am so sick and tiered of this crap. What I am trying to say is How the F*** do you mess a stock ROM up. Even the Stock MF9 won't get WiFi. WTF?
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
There's actually been very few problems for anyone, most are running perfectly. Keep in mind people are more inclined to post with problems than when it's running well. Many of the simple issues are caused by some people wanting to run MF9 without first upgrading I believe. It still runs perfectly it's just sprint seeing that it's not 100% up to date and trying to push the update to them.

Also keep in mind that you have to do your part as well in making sure everything is flashed and wiped properly.
[Sprint Samsung Galaxy S 4 Android Development] 11secEVO:
Ooh come on now :) I have been flashing phones since the Nexus One. I think I know what I am doing just a little :) I am not upset with your ROM at all. This is the only ROM I run for daily use. I tried another ROM on here and in 10 minutes it at 6% of battery, F*** that. I will wait for the WiFi fix. There is nothing I can do since the Stock Rom suck ass as well.
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
The WiFi issue has already been resolved though?

Some are running stock kernel and it allows for WiFi to function perfectly, others are running KT kernel and their WiFi runs perfectly. Have you tried this solution?
[Sprint Samsung Galaxy S 4 Android Development] 11secEVO:
KT Kernel works fine but suck major asshole on battery life. The Stock Kernel does not work at all. After sometime of use the phone slows down very much. I have to reset it and then it's smooth again for a few minutes then it slows down a lot. how did they fix the WiFi with stock Kernel?
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
The fix for the WiFi on the stock kernel I believe is to wipe, go to stock, updrade to stock ROM, kernel, firmware, AND modem and then re-flash.

This was mentioned by a few people to get their WiFi working with stock kernel. Other's WiFi works perfectly fine with the stock kernel, it's odd, I wish I knew what was screwing with the WiFi on certain people's phones. It has to be some ROM or something they've flashed in the past.
[Sprint Samsung Galaxy S 4 Android Development] DAFTEK:
Finally got it installed and i like.. The only problem so far is transparent mf9 weather won't work. Not sure if why.:(
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
Everyone has been installing this and returning with issues, is this a deodexed mod? I'm unaware as to what it is as I don't bother with modifying the weather widgets. :(
[Sprint Samsung Galaxy S 4 Android Development] DAFTEK:
http://xdaforums.com/showthread.php?t=2286622
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
Ah, I see now.

It looks like it may only be deodexed which means it won't work on this ROM.

I'd get in contact with the dev and ask him what file system it is.
[Sprint Samsung Galaxy S 4 Android Development] keltsi95:
Here's what I did.

1. Download the noobnl tar file. and installed it via Odin(there's an instructional video. Follow it)

2. Reboot the phone and verify baseband version.

3. Reboot into Recovery and Flash the Stock kernel.

4. Done!
[Sprint Samsung Galaxy S 4 Android Development] reverepats:
Yeah this is based off deodexed guys. You dont remove the WeatherWidgetDaemon.apk do you? that could be a reason if so. It may need an odex file with it upon flash. Not sure, i never ran Odex before lol

Edit... Whatever, you guys tell me which one you want, and ill put it together when I get home lol.
[Sprint Samsung Galaxy S 4 Android Development] lilkobe24:
wifi issue

is there a way to get WIFI to stop turning on automatically? i turn it off and it still turns itself on by itself
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
No I don't remove that file. It does need the odex file when flashed with it.

Yes, go to settings tab wifi and tap smart mode, turn that off.
[Sprint Samsung Galaxy S 4 Android Development] Jellybeanteeker:
How do I get that thing of xD like I know I can freeze it but what file it's getting annoying x.x that's my only issue lol everything else works fantastic c:

Sent from my SPH-L720
[Sprint Samsung Galaxy S 4 Android Development] xNicoyAx:
SEAndroid. Freeze that.
[Sprint Samsung Galaxy S 4 Android Development] Jellybeanteeker:
I tried finding it. No luck

Sent from my SPH-L720

---------- Post added at 01:25 PM ---------- Previous post was at 01:18 PM ----------

Nvm found it c:

Sent from my SPH-L720
[Sprint Samsung Galaxy S 4 Android Development] atman8r:
How's battery life on this ROM's MF9 version? I've been hearing that MF9 is terrible on battery(like S3 stock bad) anyone?
[Sprint Samsung Galaxy S 4 Android Development] shizkoff777:
Mf9 is great for me 8m going on 9hrs and still have 50 percent
[Sprint Samsung Galaxy S 4 Android Development] jonnoh:
I had this problem as well. I got it to work by toggling the allow DHCP off then on. You can find this setting only when you are in hotspot by touching the menu button and then selecting LAN settings
[Sprint Samsung Galaxy S 4 Android Development] jonnoh:
I just got about 30 hours with moderate (2.5 hours screen on) usage.
[Sprint Samsung Galaxy S 4 Android Development] Techsavage:
Quick question does this rom support apps2sd?
[Sprint Samsung Galaxy S 4 Android Development] Kingmdm:
Ok good to know. Thanks!
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
Yes, it is running the MF9 update.
[Sprint Samsung Galaxy S 4 Android Development] KStyles69:
Good ROM

Been running this beta rom for the past 36 hours and its been running great. still need to test more. that xposed mod is fully tested and is flawless. makes color theming great. i love this rom. hope to hear upcoming ideas of this rom. ANY WAY TO CHANGE THE BOOT ANIMATION?
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
Boot animation can be changed on your own if you'd like - check for a tutorial by my partner in crime MHousos.

However, the next update will include a custom boot animation if you're willing to wait!
[Sprint Samsung Galaxy S 4 Android Development] devoureddreams:
is there a boot animation like the one in your signature? that would be a cool animation.
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
Uh, well, which one? There's several signatures I've made that rotate within the signature below.
[Sprint Samsung Galaxy S 4 Android Development] devoureddreams:
sorry the one with the blue arrows
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
Hmmmm this is a good idea that I may just use...
[Sprint Samsung Galaxy S 4 Android Development] devoureddreams:
i think it would be tight to have it moving into the left with some blur like its really fast, and it creates the name of your rom.
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
I'll see what I can do
[Sprint Samsung Galaxy S 4 Android Development] Jellybeanteeker:
Wait what? >.< lol is there a way to stay with the same boot animation?

Sent from my SPH-L720
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
Yes there is, I can upload a flash able zip to change it back
[Sprint Samsung Galaxy S 4 Android Development] Reng:
Do anyone knows where to download samsung tts language pack? English is missing.
[Sprint Samsung Galaxy S 4 Android Development] DAFTEK:
This should work.. http://droidviews.com/2013/install-transparent-accuweather-widget-on-your-samsung-galaxy-s4/
[Sprint Samsung Galaxy S 4 Android Development] Jellybeanteeker:
:D ok

Sent from my SPH-L720
[Sprint Samsung Galaxy S 4 Android Development] parmend:
Is it suppose to say Android upgrading when I reboot the phone everytime?
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
You'll need to upgrade fully to MF9 including the modem and other remove that.
[Sprint Samsung Galaxy S 4 Android Development] Jellybeanteeker:
Is there a way to do that and stay on your rom? :)

Sent from my SPH-L720
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
Sadly no, you have to Odin the update and then reflash my rom. :(
[Sprint Samsung Galaxy S 4 Android Development] Jellybeanteeker:
:c awww crap

Sent from my SPH-L720
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
The upgrade for the modem (everything else is included in the rom) isn't necessary as it just adjusts some tower protocols and adds some better tower connections in certain areas. In some cases upgrading the modem isn't as good as the old one.
[Sprint Samsung Galaxy S 4 Android Development] Jellybeanteeker:
So it's better to stay how I am? :D well I mean I dont mind the android upgrading because it loads pretty quick. Unless it's when you cleae cache. That would suck lol

Sent from my SPH-L720
[Sprint Samsung Galaxy S 4 Android Development] DAFTEK:
Does anyone have a problem with contacts? It starts ok but when i select a contact the app crashes..
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
I am not experiencing this, have you used Xposed to mod the contacts in anyway? This could cause crashes because Xposed houses a lot of deodexed mods and not odexed.

The primary purpose for adding in Xposed was for the volume up to skip and removal of the volume warning - nothing else as not much anything else will work on this odexed ROM without causing crashes.
[Sprint Samsung Galaxy S 4 Android Development] DAFTEK:
Nope, i haven't. I tried to clear the data and cache but no dice.
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
Weird, first I'm hearing of this issue. Can you run a logcat at all?
[Sprint Samsung Galaxy S 4 Android Development] DAFTEK:
Sure but i never used it, I just installed it, what do you want me to do?
[Sprint Samsung Galaxy S 4 Android Development] Mudavo:
Nope.
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
Seeming that no one else has this problem I hate to say it but you may want to try and do a reflash.
[Sprint Samsung Galaxy S 4 Android Development] DAFTEK:
Well I found the culprit. It was the SecPhone.zip that Disable Increasing Ringtone
[Sprint Samsung Galaxy S 4 Android Development] parmend:
Anyone's hotspot not working?
[Sprint Samsung Galaxy S 4 Android Development] XcoNjA:
Have you tried this fix?
[Sprint Samsung Galaxy S 4 Android Development] parmend:
Yeah it still didnt work.