Database Develop

need help (recovering nexus one)

Hello
i have a problem with my nexus one,
i tried to install some theme's and it whent horribly wrong.
when ever i boot my nexus one it tells me prosesses have stopped unexpectedly, and it shuts down again. and it stays in this loop.
now ive tried to recover my phone a few times with
"fastboot devices"
"fastboot flash recovery "image file""
how ever the command promt doesnt go beyond "waiting for device"
i think the problem is that USB debugging is turned off, is there any way of turning this on without haveing to go to settings ? (couse yeh i cant get there)
please help me on this one
hope im not totaly f-ed
//Duvel
sorry if there are typo's im dutch

did you put the phone into fastboot mode, before you tried the fastboot command? and second, why are you flashing the recovery image? that won't fix you phone
i think you should try a factory reset, either by flashing your rom again or by selecting some option. what rom do you have installed? stock? if not, which and which recovery image do you have installed? there is an option in amon_ra's image do factory reset. i never used the stock recovery, but there should be an option to wipe there as well. anybody?
ps: please stop using fastboot and adb commands, if you are don't know what you are doing, before you brick your phone.

i used the following guide to root
forum.xda-developers.com/showthread.php?t=636795
i just stoped at the part where the sence ui was installed,
yes i put my phone into fastboot mode but again i think the problem is that i cant enable USB Debugging

ok i just recovered my phone with the following image
"CyanogenMOD version : recovery-RA-nexus-v1.7.0-cyan.img"
how ever im still getting unexpected application stops,
com.android.setupwizard
com.android.bluetooth
com.android.callender
com.android.mms
any idea on how to restore them ?
maybe its usefull to know i tried to use the morph "BlackMatteMorph"
from the following thread "forum.xda-developers.com/showthread.php?t=654858"
//Duvel

got it fixed now
thanks alot FloOGB some of your pointers realy helped me out,
i fixed it by installing the drivers provided by th3fallen
"forum.xda-developers.com/showthread.php?t=613217"
after that i followed the following steps got from from a post of Jeremy Sikora
"forum.androidcentral.com/google-nexus-one-roms-hacks/7366-how-install-custom-roms-your-nexus-one.html"
im sure the same topic is on XDA somewhere, this was just the first website i got directed to by google
1.) With your device powered off hold down on the volume down rocker while pressing the power button. From there select "recovery".
2.) Once in recovery select backup/restore and choose Nand backup.
When that is completed you now have a backup image saved on your SD card in case you ever need to go back to the normal ROM.
3.) Now from the recovery menu select Wipe and then Wipe data/factory reset.
4.) Once the wipe is completed select Flash zip from sdcard to select the ROM you wish to install.
5.) Once the flashing process is completed simply reboot and enjoy your freshly flashed Nexus One!
i installed the rom: Cyanogenmod For Nexus One V5.0.6
"forum.cyanogenmod.com/index.php?/topic/150-cyanogenmod-for-nexus-one-v506-04152010/?"
sorry that you arent able to click the links im providing, im new to the forum and im not allowed to make direct links yet.
so thanks again FloOGB.
//Duvel

you're welcom, no problem
even if i didn't say anything that useful i think i would have never thought about drivers since i'm using only linux and it's sort of plug and flash here.

[Q] Problem while rebooting

First of all, sorry for my english.
Now, my problem, i had a boot loop so i flashed my optimus black with "Smart Flash Tool", and ive installed "LGP970AT-00-V10a-EUR-XXX-APR-07-2011_AP" that rom.
It worked just fine, so i rooted my device with Lg Esteem, in order to install the Marvel v8 rom, and here is the problem.
I download rom manager, save the rom file into my sd, and reboot into recovery, the phone reboots but never enters the recovery, it starts like an update.
In the screen i see a white box with an orange arrow coming out of it, and the android robot, thers a bar bellow that, that is moving, and then, the phone reboots
and starts froyo again, just like if the phone were new, showing me the configuration steps... so, i cant enter the recovery menu.
i had tried all, flashing it again, downloading another booter (quickboot), deleting all my sd files but the marvel rom zip, and nothing...
A friend of mine told me, that the cellphone starts an automatic update, but i wasnt able to find any topic or tutorial or at least someone who has the same problem than me...
Id hope anyone can help, and understand my poorly written question
Txns by advance

http://forum.xda-developers.com/showthread.php?t=1487105
Skickat från min LG-P970 via Tapatalk 2

you forgot to flash CWM Recovery
if you reboot into recovery without CWM recovery installed = factory reset

[Q] Update to 4.2.2 failed. Phone not booting!!!

Hi all,
Last night, i rooted by N7000 through PhilZ-cwm6-DDLSC-ODD-5.08.5-signed and was successful in doing that.
Later i wanted to update my device to 4.2.2. So i downloaded cm-10.1-20130727-NIGHTLY-n7000.zip file and kept in my external SD card.
Then in recovery mode,i wipe the factory data. There was option wipe data or wipe to install new ROM. I selected the latter one. Wipe for installing new om was successful. Then i went to update zip.file option. But since the file was in external sd card, it was not detected and i was not able to select the file. Then i rebooted the phone but only 'Samsung galaxy N7000' screen was coming and nothing was happening.
I rebooted my phone many times but same screen was coming. Then in morning i went in advance options. I selected Recovery Bootloader. Downloading screen was coming and nothing was happening. Then i switched my off and trying to start in recovery mode but its not starting.
I thin i have no checked USB debugging.
Kindly help soon as i am helpless without phone. Your early response will be highly appreciated.

With the option "install new Rom" you removed your old Rom from your device. So it is only logical that your device won't boot into it.
Next time follow the installation instructions given in the CM-thread exactly.
And of course you can choose a zip from external sd card in CWM. So take a look again.
Best thing to do for you: boot into download mode, install a stock Rom with PC Odin and use it without changing things.

Hey Thanks for the help. But now i am facing new problem.
I flashed my phone using odin with stock rom.
Later i rooted with PhilZ-cwm6-DDLSC-ODD-5.08.5-signed and then updated it with cm-10.1-20130727-NIGHTLY-n7000.
This time i was successful. My phone was updated to 4.2.2.
Then i used it for some time and switched it off for removing the external SD card. After that i tried to switch on my phone, its not working.
Nothing is appearing on screen. I charged it and then tried to switch it on but nothing is coming on screen.
When i try to switch on my phone in Recovery mode or in download mode a thin line on the screen appears and then disappears and then nothing comes on screen.
Help please. Last suggestion worked.Kindly advise

[Q] Please help with Flashing Recovery on on Rooted VS980

I bought a VS980 last week and have been trying to flash a new recovery ever since. It is rooted, but when I try to reboot into recovery, the phone reboots and as soon as the LG splash shows up, the phone turns off. Not reboots, or freezes, or boot-loop, but just turns off. I have followed several different methods of flashing from different articles/guides i have found but all have the same effect. I have done a factory reset twice and tried to start fresh, but have the same result. I have done several options of using ADB Push to flash the recovery and I have tried to use, CWM, TWRP, Flashify, RomToolBox Pro, and GooManager apps to flash into recovery but I always have the same result. Phone reboots, LG Splash shows up for just a second, then the phone turns off.
I am about out of ideas. Please help!

usafmunk said:
I bought a VS980 last week and have been trying to flash a new recovery ever since. It is rooted, but when I try to reboot into recovery, the phone reboots and as soon as the LG splash shows up, the phone turns off. Not reboots, or freezes, or boot-loop, but just turns off. I have followed several different methods of flashing from different articles/guides i have found but all have the same effect. I have done a factory reset twice and tried to start fresh, but have the same result. I have done several options of using ADB Push to flash the recovery and I have tried to use, CWM, TWRP, Flashify, RomToolBox Pro, and GooManager apps to flash into recovery but I always have the same result. Phone reboots, LG Splash shows up for just a second, then the phone turns off.
I am about out of ideas. Please help!
Click to expand...
Click to collapse
Are you running JB or KK?
JB - Download flashify from the market and let it handle flashing the recovery
KK - Follow the directions here, steps 5-8 if you're already rooted and on 24A. - http://forum.xda-developers.com/showthread.php?t=2702958

mjones73 said:
Are you running JB or KK?
JB - Download flashify from the market and let it handle flashing the recovery
KK - Follow the directions here, steps 5-8 if you're already rooted and on 24A. - http://forum.xda-developers.com/showthread.php?t=2702958
Click to expand...
Click to collapse
Thank you so very much. The guide from the link you posted worked. You have just ended a week long battle for me and you have my thanks!

usafmunk said:
Thank you so very much. The guide from the link you posted worked. You have just ended a week long battle for me and you have my thanks!
Click to expand...
Click to collapse
Well I spoke too soon. I followed the guide in from the link, which did in fact allow me to reboot into TWRP, however, the phone seems to have been bricked in the process. I unless I use the hardware keys to reboot into recovery, the phone boots up completely blank. The screen is on, but it is black. I have tried to revert back to stock but I have not been able to. I followed all the directions found here:
http://forum.xda-developers.com/showthread.php?t=2432476&highlight=download+fail
Still no luck.

usafmunk said:
Well I spoke too soon. I followed the guide in from the link, which did in fact allow me to reboot into TWRP, however, the phone seems to have been bricked in the process. I unless I use the hardware keys to reboot into recovery, the phone boots up completely blank. The screen is on, but it is black. I have tried to revert back to stock but I have not been able to. I followed all the directions found here:
http://forum.xda-developers.com/showthread.php?t=2432476&highlight=download+fail
Still no luck.
Click to expand...
Click to collapse
Please can you describe anything that's going wrong? I.e. Can you access downloader mode?, Is your port set to COM41 (Note it does not set it automatically)?, Anything else that would give us an idea where the reverting back to stock process is going wrong?

TheOriginalKyle said:
Please can you describe anything that's going wrong? I.e. Can you access downloader mode?, Is your port set to COM41 (Note it does not set it automatically)?, Anything else that would give us an idea where the reverting back to stock process is going wrong?
Click to expand...
Click to collapse
Sure. I do not know if I am able to reach Fastboot or not. I can get into TWRP Recovery and request Fastboot, as well as hold the Up-Volume buttons on start, but the screen comes on blank after the LG icon goes away.
I can not see the device from my File Explorer in Windows. I have tried to remove each of the 3 devices that appear in my Device Manager and re-install them with the most recent drivers for my phone, which seems to work, but then I still cannot connect to it. The computer recognizes that a device has connected, but I guess I do not know how to transfer files if not through File Explorer or an ADB push.
I have tried to use ADB push but I cannot see any ADB Devices. Within TWRP, I have tried to use ADB Sideload, but the message '//twrp/backups/086c8bd70b935975' not found comes up and so it gets stuck on "starting ADB Sideload feature...."
When I use the "Mount" option in TWRP, Only Data and Cache is selected. I can select System, but I am not able to select USB-OTG
When trying to use the LG Flash Tool (and tried to change every port to 41 for each device I found in Device Manager), it fails with "Model: Unknown"..."device Model is different!"..."Check Phone or DLL!"...."00000000"
I think there were some other things tried too but that is all I can think of at the moment.

usafmunk said:
Sure. I do not know if I am able to reach Fastboot or not. I can get into TWRP Recovery and request Fastboot, as well as hold the Up-Volume buttons on start, but the screen comes on blank after the LG icon goes away.
I can not see the device from my File Explorer in Windows. I have tried to remove each of the 3 devices that appear in my Device Manager and re-install them with the most recent drivers for my phone, which seems to work, but then I still cannot connect to it. The computer recognizes that a device has connected, but I guess I do not know how to transfer files if not through File Explorer or an ADB push.
I have tried to use ADB push but I cannot see any ADB Devices. Within TWRP, I have tried to use ADB Sideload, but the message '//twrp/backups/086c8bd70b935975' not found comes up and so it gets stuck on "starting ADB Sideload feature...."
When I use the "Mount" option in TWRP, Only Data and Cache is selected. I can select System, but I am not able to select USB-OTG
When trying to use the LG Flash Tool (and tried to change every port to 41 for each device I found in Device Manager), it fails with "Model: Unknown"..."device Model is different!"..."Check Phone or DLL!"...."00000000"
I think there were some other things tried too but that is all I can think of at the moment.
Click to expand...
Click to collapse
Well new update: I was able to fix it! The problem was my own ignorance. I was following some Googl'd instructions to get the device into download mode that were incorrect. Once I saw the correct ones, I was able to get into Download Mode and revert to stock from there.

Bricked my myphone uno using Android One Toolkit

After having issues with the low 4GB memory of the myphone uno, i decided to try rooting the phone using some online instructions using Android One Toolkit. I ended up bricking it. Now when i turn on the phone, its stuck with the 4 animated circles.
I am a noob when it comes to android phones, but i do know how to install windows xp, vista, 7. I have used online instructions to clone my pc HD using clonezilla. I believe that if someone were kind enough to give step by step instructions on what files to download(like the original "OS" / "image") and where to get them. And how to use the software, i can get my myphone uno back to working order. So please anyone out there, can you help?

t-rayms said:
After having issues with the low 4GB memory of the myphone uno, i decided to try rooting the phone using some online instructions using Android One Toolkit. I ended up bricking it. Now when i turn on the phone, its stuck with the 4 animated circles.
I am a noob when it comes to android phones, but i do know how to install windows xp, vista, 7. I have used online instructions to clone my pc HD using clonezilla. I believe that if someone were kind enough to give step by step instructions on what files to download(like the original "OS" / "image") and where to get them. And how to use the software, i can get my myphone uno back to working order. So please anyone out there, can you help?
Click to expand...
Click to collapse
If you could tell us more clearly about what did you do actually and which instructions did you followed?

DNA_Uncut said:
If you could tell us more clearly about what did you do actually and which instructions did you followed?
Click to expand...
Click to collapse
i followed(or tried to) the instructions from the site of androidmtk with topic
"how to root android one devices easily"
sorry but system will not let me paste the actual link.
Process involved the use of android one toolkit.
and now my phone no longer boots. Stuck with those 4 animated circles. I have to remove the battery to get out of that screen. But no matter what i did, isn't there a way to just install android? Like installing windows on a blank hard drive? Start from scratch? Loss of data is not a factor

t-rayms said:
i followed(or tried to) the instructions from the site of androidmtk with topic
"how to root android one devices easily"
sorry but system will not let me paste the actual link.
Process involved the use of android one toolkit.
and now my phone no longer boots. Stuck with those 4 animated circles. I have to remove the battery to get out of that screen. But no matter what i did, isn't there a way to just install android? Like installing windows on a blank hard drive? Start from scratch? Loss of data is not a factor
Click to expand...
Click to collapse
Just follow the thread
http://forum.xda-developers.com/dream-uno/development/stock-rom-spice-dream-uno-mi498-t2915844
Download ROM (from the same thread)
http://forum.xda-developers.com/showpost.php?p=61588267&postcount=23
You should get back to stock kitkat (if you follow the instructions as explained). Once you get back your phone to working. Install ota updates you receive that will get you to stock 6.01

t-rayms said:
After having issues with the low 4GB memory of the myphone uno, i decided to try rooting the phone using some online instructions using Android One Toolkit. I ended up bricking it. Now when i turn on the phone, its stuck with the 4 animated circles.
I am a noob when it comes to android phones, but i do know how to install windows xp, vista, 7. I have used online instructions to clone my pc HD using clonezilla. I believe that if someone were kind enough to give step by step instructions on what files to download(like the original "OS" / "image") and where to get them. And how to use the software, i can get my myphone uno back to working order. So please anyone out there, can you help?
Click to expand...
Click to collapse
You don't need to go back on kitkat as DNA uncut says .....your device is running on which recovery ??

devil anand said:
You don't need to go back on kitkat as DNA uncut says .....your device is running on which recovery ??
Click to expand...
Click to collapse
im sorry but i dont know what "recovery" is. The phone is also no longer turning on so i cant get that info. But im ok with trying kitkat and if the flashing of the ROM works, at least ill have a working phone. And go from there and experiment some more to get the most out of the device.

When your phone is switched off. ....press the power and volume+ button at the same time and hold it till you see a menu .....then navigate to recovery as the menu instructs ....then tell me what you see
---------- Post added at 03:58 AM ---------- Previous post was at 03:49 AM ----------
t-rayms said:
im sorry but i dont know what "recovery" is. The phone is also no longer turning on so i cant get that info. But im ok with trying kitkat and if the flashing of the ROM works, at least ill have a working phone. And go from there and experiment some more to get the most out of the device.
Click to expand...
Click to collapse
When your phone is switched off. ....press the power and volume+ button at the same time and hold it till you see a menu .....then navigate to recovery as the menu instructs ....then tell me what you see

DNA_Uncut said:
Just follow the thread
http://forum.xda-developers.com/dream-uno/development/stock-rom-spice-dream-uno-mi498-t2915844
Download ROM (from the same thread)
http://forum.xda-developers.com/showpost.php?p=61588267&postcount=23
You should get back to stock kitkat (if you follow the instructions as explained). Once you get back your phone to working. Install ota updates you receive that will get you to stock 6.01
Click to expand...
Click to collapse
i installed the Android CDC Driver. DL the SP Flash Tool and the custom ROM. Rebooted the PC. Ran the SP Flash Tool. The final stage where i click on DL and connect my phone, nothing happens. The scrolling progress bar at the bottom of the flash tool doesnt start. With or w/o batteries in the phone. What do i do next?

devil anand said:
When your phone is switched off. ....press the power and volume+ button at the same time and hold it till you see a menu .....then navigate to recovery as the menu instructs ....then tell me what you see
---------- Post added at 03:58 AM ---------- Previous post was at 03:49 AM ----------
When your phone is switched off. ....press the power and volume+ button at the same time and hold it till you see a menu .....then navigate to recovery as the menu instructs ....then tell me what you see
Click to expand...
Click to collapse
when i selected the recovery option, the next screen is a picture of the android robot lying face up. With its body panel door open with red triangle with black exclamation markm, "No command" prompt

t-rayms said:
when i selected the recovery option, the next screen is a picture of the android robot lying face up. With its body panel door open with red triangle with black exclamation markm, "No command" prompt
Click to expand...
Click to collapse
First download a custom kernel zip (recommend thunderzap 5.1)
Then SuperSU 2.54 zip
Move this to files to your phones sd card
And again go to the menu which I told you during recovery (power and volume+ buttons at same time holding) then navigate to fastboot and enter ....you will se fastboot mode in the last line of the menu .
Now connect your phone to pc and open toolkit and press root.
You will see philz recovery loaded on your phone (philz recovery written on the top).
Then tap on wipe option and then factory reset and confirm it.
After factory resetting tap on install zip and select thunderzap zip
After successful installation of thunderzap select SuperSU zip and after installation of super su ...reboot now .......it will take 10 -15 mins......
Link - kernel- http://www.thunderzap.in/downloads/
SuperSU - https://download.chainfire.eu/741/SuperSU?_e_pi_=7,PAGE_ID10,5223979215

devil anand said:
First download a custom kernel zip (recommend thunderzap 5.1)
Then SuperSU 2.54 zip
Move this to files to your phones sd card
And again go to the menu which I told you during recovery (power and volume+ buttons at same time holding) then navigate to fastboot and enter ....you will se fastboot mode in the last line of the menu .
Now connect your phone to pc and open toolkit and press root.
You will see philz recovery loaded on your phone (philz recovery written on the top).
Then tap on wipe option and then factory reset and confirm it.
After factory resetting tap on install zip and select thunderzap zip
After successful installation of thunderzap select SuperSU zip and after installation of super su ...reboot now .......it will take 10 -15 mins......
Link - kernel- http://www.thunderzap.in/downloads/
SuperSU - https://download.chainfire.eu/741/SuperSU?_e_pi_=7,PAGE_ID10,5223979215
Click to expand...
Click to collapse
great. thanks. it worked. still cant believe it. But thank you very very very much.

t-rayms said:
great. thanks. it worked. still cant believe it. But thank you very very very much.
Click to expand...
Click to collapse
Just hit thanks!!
I went to Android mtk website ...then I knew where was the problem.
Note : SuperSU zip is used to root a phone via custom recovery (twrp,philzz) ...but in marshmallow you can't root your phone just by installing SuperSU zip ....you need to install a custom *kernel* first ....remember next time??

devil anand said:
Just hit thanks!!
I went to Android mtk website ...then I knew where was the problem.
Note : SuperSU zip is used to root a phone via custom recovery (twrp,philzz) ...but in marshmallow you can't root your phone just by installing SuperSU zip ....you need to install a custom *kernel* first ....remember next time
Click to expand...
Click to collapse
i take it that this step Then tap on wipe option and then factory reset and confirm it. fixed the bricking of the phone
and these steps After factory resetting tap on install zip and select thunderzap zip
After successful installation of thunderzap select SuperSU zip and after installation of super su ...reboot now .......it will take 10 -15 mins......
rooted the phone right?
One other thing is, whenever theres a system update, during the rebooting it does an error and i have to remove battery to restart the phone. Does rooting the phone cause updates not to work?

t-rayms said:
i take it that this step Then tap on wipe option and then factory reset and confirm it. fixed the bricking of the phone
and these steps After factory resetting tap on install zip and select thunderzap zip
After successful installation of thunderzap select SuperSU zip and after installation of super su ...reboot now .......it will take 10 -15 mins......
rooted the phone right?
One other thing is, whenever theres a system update, during the rebooting it does an error and i have to remove battery to restart the phone. Does rooting the phone cause updates not to work?
Click to expand...
Click to collapse
You took a bit ....if you have rebooted your phone after just factory reset .....you may have got bootloop again.....(stuck on boot animation).
About your second problem ....
When the error happens in between these steps of installation .......you tap on reboot and install and your phone goes to recovery and after successful installation your reboots .
What's the error ??
Yeah rooting your phone changes system which causes problem while installation of the original update...??

devil anand said:
You took a bit ....if you have rebooted your phone after just factory reset .....you may have got bootloop again.....(stuck on boot animation).
About your second problem ....
When the error happens in between these steps of installation .......you tap on reboot and install and your phone goes to recovery and after successful installation your reboots .
What's the error ??
Yeah rooting your phone changes system which causes problem while installation of the original update...
Click to expand...
Click to collapse
i get the prompt about an update ready for install, i click on it, it does the prompt to reboot so i choose to reboot. During the rebooting it tries to install updates, then the robot image comes up with the word "error". Stuck there until battery is removed. Afterwards the phone will turn back on.

t-rayms said:
i get the prompt about an update ready for install, i click on it, it does the prompt to reboot so i choose to reboot. During the rebooting it tries to install updates, then the robot image comes up with the word "error". Stuck there until battery is removed. Afterwards the phone will turn back on.
Click to expand...
Click to collapse
Just unroot your phone and try updating again !!!??

devil anand said:
First download a custom kernel zip (recommend thunderzap 5.1)
Then SuperSU 2.54 zip
Move this to files to your phones sd card
And again go to the menu which I told you during recovery (power and volume+ buttons at same time holding) then navigate to fastboot and enter ....you will se fastboot mode in the last line of the menu .
Now connect your phone to pc and open toolkit and press root.
You will see philz recovery loaded on your phone (philz recovery written on the top).
Then tap on wipe option and then factory reset and confirm it.
After factory resetting tap on install zip and select thunderzap zip
After successful installation of thunderzap select SuperSU zip and after installation of super su ...reboot now .......it will take 10 -15 mins......
Click to expand...
Click to collapse
It worked for me too, but now I can`t update SuperSU.
Update from OS failed, from TWRP gives bootloop.
I`m on CM13 SNAPSHOT.
... also front camera cant take picture, but preview works ok.

Johnny_16 said:
It worked for me too, but now I can`t update SuperSU.
Update from OS failed, from TWRP gives bootloop.
I`m on CM13 SNAPSHOT.
... also front camera cant take picture, but preview works ok.
Click to expand...
Click to collapse
What's the need of updating SuperSU ..,...
Use Google camera ....
Sent from my A1 using XDA-Developers mobile app

t-rayms said:
i get the prompt about an update ready for install, i click on it, it does the prompt to reboot so i choose to reboot. During the rebooting it tries to install updates, then the robot image comes up with the word "error". Stuck there until battery is removed. Afterwards the phone will turn back on.
Click to expand...
Click to collapse
You've root? And which update do you wanna install on your phone!?
Just tell me what's your build number.. I'll help ya out.

HELP
My cousins Myphone Uno is not turning on when pressing the power button, but if I put in a charge the screen turns on after a few minutes showing the battery but I don't know if it is charging. after a minute the display will go out and the screen flashes a once or twice then off and screen turns on and display the battery it will be on a loop, I can still get to boot option when screen flashes starts,
it shows:
[Recovery Mode]
[Fastboot Mode]
[Normal Boot]
[Normal Boot +ftrace]
[Normal slub debug off]
but when I select any options or not to ,the phone will turn off. Can you help me find a way to make this phone work again? thank you in advance!
PS: If I connect it in my PC it wasn't detected and the the loop will go on and on.
Usb debugging mode is also turned off