After flashing a JB rom and a corresponding JB Super SU zip this morning, I accidentally uninstalled the Super SU thinking I had a different SU app already. Turns out I didn't, and now I don't know how to get it back. I flashed the SU zip again in recovery, didn't work. But now nothing requiring root access works, so I can't even get back into recovery as far as I can tell. What do I do to get root back?
UPDATE: No matter what kind of weird things you may have done to your GNex, if you happened to have screwed up your SU abilities somehow, these next few posts will most likely help to guide you. I screwed mine all up to hell, and these guys helped me remember what was going on and what to do to fix it.
Sent from my Galaxy Nexus using xda app-developers app
Reflash the ROM.
Try getting into fastboot, through the volume and power keys when the device is shutdown.
Happened to me before, that was the only solution.
you can download the superuser app from the market
simms22 said:
you can download the superuser app from the market
Click to expand...
Click to collapse
Duh. That was easily the dumbest thing I've done this week. Funny the things we forget to be easy if we hardly ever do them.
Sent from my Galaxy Nexus using xda app-developers app
I DID IT AGAIN!!
I didn't learn my lesson, and kept screwing around with the super user apps, and I ended up removing the super user binary. (what is wrong with me?) So this is a little more serious... Now what do I do?
I'm not a noob rooter (rooted my OG Droid 2 years ago and kept up with development, now the same with my GNex) but I guess I somehow got around having to deal with SU issues the whole time.
neccoguy21 said:
I didn't learn my lesson, and kept screwing around with the super user apps, and I ended up removing the super user binary. (what is wrong with me?) So this is a little more serious... Now what do I do?
I'm not a noob rooter (rooted my OG Droid 2 years ago and kept up with development, now the same with my GNex) but I guess I somehow got around having to deal with SU issues the whole time.
Click to expand...
Click to collapse
Do you have CWM installed? If so, just flash this in recovery.
efrant said:
Do you have CWM installed? If so, just flash this in recovery.
Click to expand...
Click to collapse
That's all I use, but I can't get to recovery. I'm running stock JB rom, so there's no option to reboot into recovery from the power menu, and since I don't have super user, no app can get the permission to reboot into recovery either. I can power down and boot into the bootloader (or whatever that is) holding the volume down and power buttons, but I don't see how that helps.
Sent from my Galaxy Nexus using xda app-developers app
neccoguy21 said:
That's all I use, but I can't get to recovery. I'm running stock JB rom, so there's no option to reboot into recovery from the power menu, and since I don't have super user, no app can get the permission to reboot into recovery either. I can power down and boot into the bootloader (or whatever that is) holding the volume down and power buttons, but I don't see how that helps.
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
power off the phone
hold volume UP and DOWN and POWER buttons all at the same time
you will boot into fastboot mode
from there you can scroll up and down using the volume buttons and select an option using the power button
select recovery press the power button this will get you into recovery
flash supersu in recovery
bob's your uncle
neccoguy21 said:
That's all I use, but I can't get to recovery. I'm running stock JB rom, so there's no option to reboot into recovery from the power menu, and since I don't have super user, no app can get the permission to reboot into recovery either. I can power down and boot into the bootloader (or whatever that is) holding the volume down and power buttons, but I don't see how that helps.
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
if you can get to the bootloader, scroll using the volume keys to get to 'recovery mode' and select that. that is recovery and you should hopefully have CWM or TWRP still installed.
bah... blowtorch is faster
neccoguy21 said:
That's all I use, but I can't get to recovery. I'm running stock JB rom, so there's no option to reboot into recovery from the power menu, and since I don't have super user, no app can get the permission to reboot into recovery either. I can power down and boot into the bootloader (or whatever that is) holding the volume down and power buttons, but I don't see how that helps.
Click to expand...
Click to collapse
Once your at the bootloader, you should have the choice to boot from there into recovery, though it's been a while since I've done it that way so cannot give you the exact steps. You should be able to use the volume keys to highlight the recovery option and then press the power button to choose it, I believe.
But you may have lost CWM, since JB could have over-written it. If so, you'll need to use fastboot to re-install it, after which you can use CWM to apply an SU zip from your internal SD card.
Thank you blowtorch, Zepius, and high vista! It was having both vol buttons pressed that I had completely forgotten about. That solves the problem and dams up a flood of questions that could have been had I not gotten that minor detail in.
Related
Installation instructions:
YOUR PHONE MUST ALREADY BE S-OFF. SEE THE OTHER THREADS IN THIS FORUM ON HOW TO DO THAT.
I recommend getting on Wi-Fi.
Download ROM Manager from the Market. You MUST have at least 2.5.0.6.
Flash Recovery.
Choose G2 as your phone.
Accept the Superuser prompt.
Use ROM Manager to create a Backup.
Watch the backup go!
That's it! This is completely painless and safe!
If you appreciate my work, please buy the Premium version of ROM Manager!
If you can't seem to get ROM Manager off the market, you can get it from my homepage:
http://www.koushikdutta.com/2010/02/clockwork-recovery-image.html
http://koush.tandtgaming.com//recoveries/RomManager.apk
Or to manually install the recovery via fastboot, use this:
http://koush.tandtgaming.com/recoveries/recovery-clockwork-2.5.1.2-vision.img
Great work!! Would this happen to work on the Desire Z as well?
Got the premium key off the market, but it doesnt list g2 in device selection
Sent from my T-Mobile G2 using XDA App
Dalamak said:
Got the premium key off the market, but it doesnt list g2 in device selection
Sent from my T-Mobile G2 using XDA App
Click to expand...
Click to collapse
I'm not seeing the G2 as an option, either
EDIT: I enabled "Advanced Mode" in settings and rebooted, G2 now shows up. Thanks, Koush!
Get on wifi if you don't see it.
Purchased, keep up the good work.
instructions for fastboot method?
I keep getting an error message "can't open cache\recovery\command" upon reboot when I try to create a backup. Any ideas?
John5788 said:
instructions for fastboot method?
Click to expand...
Click to collapse
fastboot flash recovery recovery-clockwork-2.5.1.2-vision.img
Same problem as yayitzben... Any suggestions?
Sent from my T-Mobile G2 using XDA App
How can I backup my current rom?
Sent from my T-Mobile G2 using XDA App
usunoro said:
fastboot flash recovery recovery-clockwork-2.5.1.2-vision.img
Click to expand...
Click to collapse
I tried that after rebooting into fastboot mode, but it gets stuck at:
Code:
$ ./fastboot flash recovery recovery-clockwork-2.5.1.2-vision.img
sending 'recovery' (4040 KB)...
for over a minute. i dont remember it taking this long on the G1 to flash recovery
Any reason selecting reboot in the recovery causes it to just black screen, and then pushing power button returns it to the recovery?
Oh my God!!!! I followed your instructions and clicked backup current ROM and it rebooted and now I have a red triangle. What do I do?
funkeee said:
Oh my God!!!! I followed your instructions and clicked backup current ROM and it rebooted and now I have a red triangle. What do I do?
Click to expand...
Click to collapse
hold vol up and power button at the same time. then using the volume bar to go to reboot... and press the power button.
~~Tito~~ said:
Any reason selecting reboot in the recovery causes it to just black screen, and then pushing power button returns it to the recovery?
Click to expand...
Click to collapse
Be sure to use the trackpad (button below the screen) and not the power button for "select". Power button is "back".
funkeee said:
Oh my God!!!! I followed your instructions and clicked backup current ROM and it rebooted and now I have a red triangle. What do I do?
Click to expand...
Click to collapse
This happened to me (and a few others in the other thread). Pull the battery, restart, reflash recovery (via rom manager), fix permissions (via rom manger, might not be needed), start a new backup. Should work.
(Thanks temjinzero for this method)
Thanks Koush for an awesome job!
If your phone restarts while in Clockwork after flashing and gives you a screen with a red triangle, do not panic and start using it as a paperweight immediately.
Pull the battery, reboot and reflash Clockwork.
I wasn't able to boot again for a few minutes after the battery pull. The power button did not have any effect. Not fastboot nor regular boot. After 2-3 minutes of pain, utter pain, I was able to get into fastboot, then reboot like normal.
Thank you to Koush, cyprusxr3 and mdel.
If you do not see g2 liste go to settings/applications/manage downloaded/rommanager and push clear cache clear data bam fixed
Purchased. And thanks for all the hard work
Sent from my T-Mobile G2 using XDA App
Ahh the touch pad, from what I was hearing, it wasn't working lol.
Just installed beacon bits lol.
Today I installed advanced task killer/manag er from the market as my phone was acting up lately. I set security to low and task killer to run when the screen is off. I rebooted and now im stuck on the white htc screen. I tried pulling the battery several timesand rebooting but still no boot. I cant boot into recovery because my volume down switch stopped working in the past week. Is the re any way around this I only have 1 phone and really need it working. Thanks in advance.
andy905 said:
Today I installed advanced task killer/manag er from the market as my phone was acting up lately. I set security to low and task killer to run when the screen is off. I rebooted and now im stuck on the white htc screen. I tried pulling the battery several timesand rebooting but still no boot. I cant boot into recovery because my volume down switch stopped working in the past week. Is the re any way around this I only have 1 phone and really need it working. Thanks in advance.
Click to expand...
Click to collapse
Never seen this before. Why did the volume button stop work?
Sent from my HTC Desire using xda premium
addemod said:
Never seen this before. Why did the volume button stop work?
Sent from my HTC Desire using xda premium
Click to expand...
Click to collapse
Not sure, one day it worked and next day it didn't. Volume up works but volume down doesn't, the trackpad has also stopped working. The phone was ok before doing a reboot with the task killer.
andy905 said:
Not sure, one day it worked and next day it didn't. Volume up works but volume down doesn't, the trackpad has also stopped working. The phone was ok before doing a reboot with the task killer.
Click to expand...
Click to collapse
Ok that's weird :S
Try press harder on the volume down or like hold the tumb on the minus symbol so it covers more then the minus symbol and push hard then hold the power button when it is off, it should boot in recovery.
Sent from my HTC Desire using xda premium
While phone is off press back button + power. That takes u to fastboot then use fastboot commands to boot recovery
Sent from my HTC Desire
addemod said:
Ok that's weird :S
Try press harder on the volume down or like hold the tumb on the minus symbol so it covers more then the minus symbol and push hard then hold the power button when it is off, it should boot in recovery.
Sent from my HTC Desire using xda premium
Click to expand...
Click to collapse
His vol down button dont work so he cant navigate to recovery
Sent from my HTC Desire
jmcclue said:
His vol down button dont work so he cant navigate to recovery
Sent from my HTC Desire
Click to expand...
Click to collapse
I meant it was maybe just a glitch on the button so he had to push harder but, thx for replied to him xD
Sent from my HTC Desire using xda premium
Ive tried extra pressure on the volume down button but doesnt work, ill try the power and back buttons and see if that gets me anywhere. I appreciate all your replies guys.
andy905 said:
Ive tried extra pressure on the volume down button but doesnt work, ill try the power and back buttons and see if that gets me anywhere. I appreciate all your replies guys.
Click to expand...
Click to collapse
I managed to boot into recovery but because the trackpad isnt working I cant select any options. This is damn frustrating. I should have installed a touch recovery. What are my options now?
andy905 said:
I managed to boot into recovery but because the trackpad isnt working I cant select any options. This is damn frustrating. I should have installed a touch recovery. What are my options now?
Click to expand...
Click to collapse
So not even vol+ doesn't work? Really? You can choose with vol+ too
Sent from my HTC Desire using xda premium
addemod said:
So not even vol+ doesn't work? Really? You can choose with vol+ too
Sent from my HTC Desire using xda premium
Click to expand...
Click to collapse
I can scroll through recovery options using vol+ but I cant select any options. Im using clockworkmod recovery v5.0.2.0. Is there another way to select by any chance.
andy905 said:
I can scroll through recovery options using vol+ but I cant select any options. Im using clockworkmod recovery v5.0.2.0. Is there another way to select by any chance.
Click to expand...
Click to collapse
Why can't you select? Use the power button at the top left.
Sent from my HTC Desire using xda premium
download PB99IMG (4ext recovery) and extract the recovery.img from it and put the recovery.img directly into ur C:\ drive. use fastboot commands and flash the recovery.img.
fastboot flash recovery c:\recovery.img
then
fastboot boot recovery
jmcclue said:
download PB99IMG (4ext recovery) and extract the recovery.img from it and put the recovery.img directly into ur C:\ drive. use fastboot commands and flash the recovery.img.
fastboot flash recovery c:\recovery.img
then
fastboot boot recovery
Click to expand...
Click to collapse
Had a major stroke of luck this morning. While frantically trying all combinations of button pushes while in recovery a notification appeared that the back button had been activated with menu functions. The search button then acted as a select button like the trackpad. I was able to reflash my rom without losing any data or apps. :laugh: Thanks to everyone for all your suggestions. That was a close one.
andy905 said:
Had a major stroke of luck this morning. While frantically trying all combinations of button pushes while in recovery a notification appeared that the back button had been activated with menu functions. The search button then acted as a select button like the trackpad. I was able to reflash my rom without losing any data or apps. :laugh: Thanks to everyone for all your suggestions. That was a close one.
Click to expand...
Click to collapse
Yay, I were just going to say that, that you can use the trackball or whatever it is called, you know between back and menu button. You can navigate there too
Sent from my HTC Desire using xda premium
addemod said:
Yay, I were just going to say that, that you can use the trackball or whatever it is called, you know between back and menu button. You can navigate there too
Sent from my HTC Desire using xda premium
Click to expand...
Click to collapse
The trackball also wasnt working and thats why I had such a headache, luckily clockworkmod seems to have extra button functions which allowed me to select. Thanks again.
andy905 said:
The trackball also wasnt working and thats why I had such a headache, luckily clockworkmod seems to have extra button functions which allowed me to select. Thanks again.
Click to expand...
Click to collapse
Hah, I am glad you fixed it!
Sent from my HTC Desire using xda premium
Just got my s2 a couple days ago. went ahead and rooted it, threw on a Jedi Knight. I wound up switching recoveries to twrp as well. i like to flash roms alot till i find what i like best (dont we all). I wanted to try pa 2.52 but was unable to get it to bootup so I restored Jedi Knight.. I hit up the pa thread and people mentioned formatting internal storage. So I did that, and managed to get pa 2.52 on without any problems.. In the reboot options bootloader is not there.. So I started with my battery pull options to get there and nothing seems to be working..
some battery pull scenarios:
volume + & power = 1 vibe, samsung logo, let go >> boot back to rom. If I hold past 1 vibe, more continous vibes and no boot up at all
volume - & power = same as above
volume +- & power = 1vibe, samsung logo, let go >> recovery. If i continue to hold past the logo and then let go >> boot back to rom.
I'm trying to get to hboot just so I can see my s-off status & radio versions.. Much thanks..
Boot loader and s-off are for HTC phones not Samsung phones
Sent from my wickedly awesome Galaxy S2 using my fingers. Duh!!!
I can see someone is coming from an HTC phone haha... If you are on the the T989 booting in download is volume down+volume up + power, or recovery mode its volume down + power.
That would be why I am familiar with them.. I left my incredible and got the s2. Is their anything similar to that for us or no? Not that it makes a difference..
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
Nope
Sent from my wickedly awesome Galaxy S2 using my fingers. Duh!!!
Hrmph.... guess I don't have a problem after all..:thumbup:
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
Wait...so there is not bootloader
Hello I was attempting to get into my bootloader and I can't. If I am in the phone and press the power button I get the option to reboot if I click that I have the option to reboot into recovery, reboot into bootloader, or just reboot. Why have the option to reboot into bootloader if there isn't one?
I thought I booted into the bootloader to factory rest my SGH-T989 when I purchased it from someone was that not the case? was I booting into some sort of recovery?
w1ll1am23 said:
Hello I was attempting to get into my bootloader and I can't. If I am in the phone and press the power button I get the option to reboot if I click that I have the option to reboot into recovery, reboot into bootloader, or just reboot. Why have the option to reboot into bootloader if there isn't one?
I thought I booted into the bootloader to factory rest my SGH-T989 when I purchased it from someone was that not the case? was I booting into some sort of recovery?
Click to expand...
Click to collapse
Yes, you booted into Download mode which is the mode needed to flash your phone over usb with a tool called odin. In most cases it doesn't wipe the /data or /emmc partitions though so the best thing to do is to use the factory restore in android or your installed recovery.
namanjr said:
Yes, you booted into Download mode which is the mode needed to flash your phone over usb with a tool called odin. In most cases it doesn't wipe the /data or /emmc partitions though so the best thing to do is to use the factory restore in android or your installed recovery.
Click to expand...
Click to collapse
Oh okay I am coming from an HTC as well so kinda new to this samsung thing. Thanks.
This website will tell you everything you need to know
http://galaxys2root.com/category/t-mobile-galaxy-s2/
Sent from my SGH-T989 using xda premium
So I've had this phone 9 days, unlocked/rooted it a few hours ago and decided to try Cyanogen 10. I used ROM Manager to boot into recovery for the flash and now it's stuck on the splash screen.
I made a full nandroid backup before flashing but can't figure out how to manually get it back into Clockwork's recovery. Volume-down+power brings me to a robot telling me he's downloading something and not to turn off the target. I also made full ADB backups from the Nexus Root Toolkit before the unlock/root if anyone can tell me how to restore that way.
Flame away, I'm never this dude!
Volume up + volume down + power will get up into bootloader then u can select recovery.
Sent from my Galaxy Nexus using xda premium
Esteway.619 said:
Volume up + volume down + power will get up into bootloader then u can select recovery.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
What? You can press the Vol Up and Vol Down at the same time now and it registers? The wonders of technology.
Sarcasm off... Thanks, you just saved my ass (recovery successful). Now to figure out why Google didn't tell me that.
There's no problem with you coming to the forums to ask for help, but in the future, please try and post in the appropriate forum. This particular forum is not for general Q&A. I would think you would some better help over there.
I accidentally flashed a ROM update with no ROM. Odviously nothing booted up. I then was able to get into recovery and flash cm ROM I rebooted phone, but now I have no root.
I tried installing a superuser app that didn't work.
Is there anything I can flash, install?
I have no access to a PC. And can't boot into recovery.
I found this up in general... http://forum.xda-developers.com/showthread.php?t=2352669
Sent from my SPH-L710 using Tapatalk 4 Beta
bigpappags3 said:
I found this up in general... http://forum.xda-developers.com/showthread.php?t=2352669
Sent from my SPH-L710 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Thanks for that, but unfortunately it didn't work.
rickmatic said:
Thanks for that, but unfortunately it didn't work.
Click to expand...
Click to collapse
Sorry man...hope u get it.
Sent from my SPH-L710 using Tapatalk 4 Beta
Fid the team epic root zip and flash it in recovery. http://db.tt/hGyuqdkl here's the file. Your just going to have to get into recovery. The 3 finger method didn't work?
Sent from the future via Tapatalk 4
edfunkycold said:
Fid the team epic root zip and flash it in recovery. http://db.tt/hGyuqdkl here's the file. Your just going to have to get into recovery. The 3 finger method didn't work?
Sent from the future via Tapatalk 4
Click to expand...
Click to collapse
If by that u mean volume, power and home button. No it didn't.I tried booting threw ROM manager and it detects my recovery, but doesn't do anything.
Is there a way to flash a ROM threw download mode without a PC. I remember the Evo was capable of doing it threw bootloader.
Do you want to get root? Or flash a rom?
To boot into recovery it's power+home+vol up
Sent from the future via Tapatalk 4
I thought you had to enable root under settings? It has been a while since I've used Cm, but I remember they disabled root access by default . It seems like he can still get into recovery.
Sent from my cm_tenderloin using Tapatalk 2
I had root access and I'm currently running a 10.2 nightly of cm 4.3 with a few glitches. So I want to flash a 100% working ROM. I can't boot into recovery with any app due to the fact it requires su permission and I have no binaries according to su. I cant get into recovery either using 3 finger method the Samsung logo appears with the blue words on the top left, but it doesn't do anything after that. ROM manager shows my recovery as twrp so I'm in a pickle....lol
And no on turning on root in settings.
Then you need to find a computer to flash recovery again via odin, otherwise flash a rooted rom via odin.
Sent from the future via Tapatalk 4
edfunkycold said:
Then you need to find a computer to flash recovery again via odin, otherwise flash a rooted rom via odin.
[] Sent from the future via Tapatalk 4[/b]
Click to expand...
Click to collapse
OK so its impossible without a computer...Damn. Thanks for ur help I really appreciate it.
Last question I used Odin to get root, since I'm on a 4.3 ROM, can I still use the exact same method?
rickmatic said:
OK so its impossible without a computer...Damn. Thanks for ur help I really appreciate it.
Last question I used Odin to get root, since I'm on a 4.3 ROM, can I still use the exact same method?
Click to expand...
Click to collapse
You can use odin to flash recovery and then you can flash the root.zip it should work. But I would use odin to flash to a stock rom first.
Sent from the future via Tapatalk 4
You can flash recovery without a computer.
Download the recovery image file, rename it to rec.img
Go into terminal emulator
Code:
su
dd if=/path/to/rec.img of=/dev/block/mmcblk0p18
Be very careful when typing the second command.
Sent from my buttered S3
CNexus said:
You can flash recovery without a computer.
Download the recovery image file, rename it to rec.img
Go into terminal emulator
Code:
su
dd if=/path/to/rec.img of=/dev/block/mmcblk0p18
Be very careful when typing the second command.
Sent from my buttered S3
Click to expand...
Click to collapse
That might be a problem I need to type su and since I have no binaries my terminal emulator won't have su privileges.
Right?
rickmatic said:
I had root access and I'm currently running a 10.2 nightly of cm 4.3 with a few glitches. So I want to flash a 100% working ROM. I can't boot into recovery with any app due to the fact it requires su permission and I have no binaries according to su. I cant get into recovery either using 3 finger method the Samsung logo appears with the blue words on the top left, but it doesn't do anything after that. ROM manager shows my recovery as twrp so I'm in a pickle....lol
And no on turning on root in settings.
Click to expand...
Click to collapse
There isn't an option under settings --> developer options for root? At one time, they had didn't options for apps, adb, or both. You would need the both box checked for it to boot into recovery via an app. I haven't used it in a while, so I'm not even sure if they still do it this way.
And it is strange that you can't boot in recovery. Instead of the power off, then hold volume up, home button, and power....have you just tried to reboot the phone and when the screen goes blank hold the volume up and home? I've had luck getting into recovery by that.
Plus, if you are running CM, there should be a reboot option for recovery when you power off. Reboot --> recovery.
Last idea, have you tried to download goo manager from the market? That works well with TWRP.
lvpre said:
There isn't an option under settings --> developer options for root? At one time, they had didn't options for apps, adb, or both. You would need the both box checked for it to boot into recovery via an app. I haven't used it in a while, so I'm not even sure if they still do it this way.
And it is strange that you can't boot in recovery. Instead of the power off, then hold volume up, home button, and power....have you just tried to reboot the phone and when the screen goes blank hold the volume up and home? I've had luck getting into recovery by that.
Plus, if you are running CM, there should be a reboot option for recovery when you power off. Reboot --> recovery.
Last idea, have you tried to download goo manager from the market? That works well with TWRP.
Click to expand...
Click to collapse
I tried goo and that didn't work.
Cm does have the reboot options, but it had to be turned on. Developer options doesnt show up under settings, but I remember there was a way to turn it on. I went under "About phone or Device" clicked on everything like 10 times and I forgot which 1 it was, but I unlocked developer options. Turned on reboot menu. Rebooted phone into recovery and although it took a while I got into recovery. Flashed a new rom and I'm back in action.
Thank u guys honestly. I could not have done it without u guys.
Glad u got it
Sent from my SPH-L710 using Tapatalk 4 Beta
Plus the OP said he was running cm 10.2 nightly with Android 4.3...did I miss something?
lvpre said:
Plus the OP said he was running cm 10.2 nightly with Android 4.3...did I miss something?
Click to expand...
Click to collapse
U definitely missed it. Go to the original development section the cm 10.1 thread and I think it was 10 pages back from the last page. They posted an EARLY preview. Had a few glitches but nothing to major.
Its the first post on page 657. A few post down are the gapps.
http://forum.xda-developers.com/showthread.php?t=2030660