boot loop after trying to flash twrp 2.2.1 - Nexus 7 Q&A, Help & Troubleshooting

Okay so I seem to have run into a little problem I was planning on updating cleanrom up to 1.2.5 but was on cwm. I had managed to switch over successfully to twrp 2.2.0. I went ahead and used goo manager to download the updated zip of 2.2.1 and tried flashing it thru twrp. Now I am stuck in google bootloop and cant get into recovery or more importantly bootloader. I have been trying last 30mins to hold power and both volume buttons but it either keeps rebooting back to the google screen or not doing anything at all just have to repress to to turn it off but it will turn back on automatically. I tried hooking it up to my usb and labtop but it looks like it wont even recognize it. I just fully charged it so I am good for now just a little worried cant get out of this mess.

I ran into a problem like that with clockwork recovery it kept on rebooting in recovery but I could still go into download mode I was at work away from my computer so I had no choice but to keep trying that three button magic until it finally restored a backup I had on my external card.just keep on trying to pull the battery then try to go into recovery. You might 've gotten a bad download
Sent from my SGH-T999 using xda premium

problem is I cant get into recovery. or the green screen to get to bootloader. It just completely stuck in a bootloop on the google screen mocking me... I am really contemplating opening it up and taking out battery but is that a good idea? Or is there anything else I can do?

so I pulled off the back cover but really dont want o disconnect the battery might mess something up but I cannot get the device to shut off.

disconnecting the battery does nothing it shuts it off and keeps it off but when I connect it to the charger the battery symbol pops up for a second and then goes completely blank. I went ahead and tried again to boot into bootloader pressing power vol up + down and all combinations of power vol -, power vol +
power turbo press vol +/- but no luck still in google screen.

If you're in a bootloop you need to connect your Nexus 7 to a computer. Then you will be able to access recovery via the Power button and volume buttons.

is it going to make a difference that everytime i try to reboot it just the black google screen? I have tried it connected to the wall charger and connected usb to the labtop but nothing.

clago87 said:
is it going to make a difference that everytime i try to reboot it just the black google screen? I have tried it connected to the wall charger and connected usb to the labtop but nothing.
Click to expand...
Click to collapse
It's supposed to do that when you're trying to go to recovery from bootloader without the USB cable plugged into a computer, may need to have the drivers installed on said computer. It's an issue with the nexus 7 bootloader and every one of them does it. What your experiencing is perfectly normal if you tried to go to recovery from bootloader with the bolume buttons and then got the google screen bootloop.
If it doesn't work when you plug it in and try, then try unplugging it, manually rebooting with it plugged in first, or vice versa
Update: I can get on Team Viewer and remotely reboot you into recovery through the PC if you want, or at least give it my best shot.

ok so i disconnected battery and have the device off. I should then try connecting it to the pc and try booting up holding down all buttons?

clago87 said:
ok so i disconnected battery and have the device off. I should then try connecting it to the pc and try booting up holding down all buttons?
Click to expand...
Click to collapse
Have you installed the right drivers on the computer you're using, for ADB and the device drivers, when you unlocked and rooted?
Answer to your question is yes try that. But I wouldn't be disconnecting and reconnecting it, I can't recommend that and then learn tomorrow that static zapped something important.

yea I am getting nothing by connecting to pc. I have all the drivers adb and fastboot installed when I rooted and unlocked couple weeks back but it looks like device is not being recognized or read at all by the pc.

connecting to the pc holding the volume + button gets it recognized for a second and tries to install a driver apx but unsuccessfully.

I am not making any progress whatsoever kinda sucks starting the weekend like this. I have gone thru some bad stuff with my atrix but nothing like this were I cant even access my bootloader boot into recovery or even fastboot. Should I try and get it to just stay off and see if overnight it works its own magic? Hate going to sleep witht his on my mind but I think with a clear mind in the morning something good will happen.

I can get it to stay off by holding both vol+ and vol- but trying to turn it off with just the power button just keeps it turning back on/off...

so I slepted on it thru the night let the tablet rest but went back this morning and I still cant get into bootloader or recovery. Is there anything I can do?

Has anyone else had this problem where they cant boot into recovery or bootloader? It's like the power button and vol keys are unresponsive even though they still work to turn on the device.

are you sure that you flashed the right recovery? but you should still be able to get the bootloader. are you pressing power + volume down(volume down, not both volume buttons. i noticed you wrote both volume buttons) to get into the bootloader?

I think I chose the right recovery the first version downloaded thru goo manager but it was the 2.2.0 version. I had the option on the of downloading the 2.2.1 zip or the .img but i downloaded the .img to just to flash with the current version of twrp that was working. There have been times were I have not been able to get into recovery on my atrix or htc but I've always been able to get into the bootloader this is the first time I've been locked out of my device kind of got me scared its not even a month old. So you say to get into bootloader you dont have to hold down both volume buttons? I will try again to power back up using the volume down and power button at same time... Wish me luck

clago87 said:
I think I chose the right recovery the first version downloaded thru goo manager but it was the 2.2.0 version. I had the option on the of downloading the 2.2.1 zip or the .img but i downloaded the .img to just to flash with the current version of twrp that was working. There have been times were I have not been able to get into recovery on my atrix or htc but I've always been able to get into the bootloader this is the first time I've been locked out of my device kind of got me scared its not even a month old. So you say to get into bootloader you dont have to hold down both volume buttons? I will try again to power back up using the volume down and power button at same time... Wish me luck
Click to expand...
Click to collapse
good luck!
yea, only power button and the volume down button.

quick question before I connect the battery does it make a difference whether or not I have it plugged in charging or connected to the PC while trying to boot into bootloader?

Related

Grrrr, Why Me! Help

Well I've had my Vibrant for about a month now but have not been in a rush to root because there aren't really any ROMS available yet. I've donated so I'm excited to see what comes about. Any way I decided to go ahead and root today because frankly the bloatware was getting on my nerves. So I rooted the phone basically just flashing the upsate.zip and then flashing recovery via rom manager. Now I'm a bit frustrated because immediately after rooting:
1. My Vibrant is laggy as all hell!
2. Google apps crashes repeatedly
3. My damn market no longer works! Can't download apps via market anymore
4. My Sync is now broken, it says synced but definitely does not sync anything any time anymore.
What gives? Others have obviously had no problems and I'm certain I didn't do anything wrong, I've been rooting and flashing since the days of G1 and have had a Mytouch and most recently a Nexus One. I'm not fantastically versed but I'm no n00b all the same.
Also what's up with the radio? My phone rings and the ringer is low then a few seconds later gets loud also the delay between the time I dial a number and the number rings is pretty big, I've taken two phones and called one to check.
Any way I'm frustrated and unroot is not working, I attempted to unroot but yet remain rooted with all the same headaches.
Some help would be appreciated.
Go ahead and use odin to get back to stock. Yes you will lose your data.
http://forum.xda-developers.com/showthread.php?t=734475
You should be back to stock at this point. Then use this file to get root.
http://forum.xda-developers.com/showthread.php?t=723479
There really isnt much else to do. You dont even need the recovery, yet, but use clockwork through market to get it. Choosing Vibrant as the recovery option. Download the busybox app from market to get the newest one.
unfortunately my phone does not boot into download mode. I've tried holding volume down and power, no dice it just boots up normally. ive also tried holding volume up and power to the same result....And I don't know of any other way to use Odin without download mode. After rooting my phone nothing works properly.
justanothergirl said:
unfortunately my phone does not boot into download mode. I've tried holding volume down and power, no dice it just boots up normally. ive also tried holding volume up and power to the same result....And I don't know of any other way to use Odin without download mode. After rooting my phone nothing works properly.
Click to expand...
Click to collapse
You have to hold volume up and down while holding power. Once the screen goes black release power and continue holding volume up and volume down.
Your other option is with adb to do "adb reboot download" and it will reboot into download mode.
Once you get the hang of holding the volume up and down it's a piece of cake.
try installing one of eugene's ROMs through Clockwork, and see if that fix's anything.
Make sure you have the samsung drivers installed on your computer.
Odin can be tricky, here's my sure fire way that i get into Odin every single time.
DO NOT HAVE YOUR USB PLUGGED IN YET
1) Start odin load your .pit file and rom into PDA
2) Go into stock recovery
3) Now plug in the USB cable, Odin should recognize a phone is connected
4) In recovery select Reboot System
5) Immediately press the Volume Up/Down Button all the way in, (2 clicks)
6) should load the yellow triangle and say download mode plus Odin should recognize it immediately
Okie doke, thanks guys, I went ahead and used Odin to return to get back to stock so I'm going to just root again, I have no idea why things got so screwed up when I rooted and flashed before. Getting into download mode was annoying but this is what worked for me:
1. Turn off phone
2. Plug USB in
3. Wait for green charging screen
3. Hold Volume Up, Volume down, and Power.
5. Let go of power as soon as the screen goes black.
Open Odin and load files then hit start....and back to stock I went.
Thanks again!

Can't get into download mode

Okay, so I think I brainfarted and softbricked my Vibrant. I tried to get it into download mode, but pressing vol up+down only gets me a gray battery icon, not the usual download screen. When I power it up regularly, it goes into bootloop. It's never had a problem going into download mode before, so I don't know if there's a malfunction with the vol buttons or what. I certainly seem to suck.
(Ugh, just noticed the no questions in the general forum rule. Mods, please delete)
Pull battery
Plug phone into computer via usb
Hold vol up, vol down, and power
Replace battery while still holding those buttons
U can go to 4shared and grab a app called hot boot, it will put u in recovery
Sent from my SGH-T959 using xda premium
Turn off phone
pull out battery
hold Volume UP and Volume Down
Plug in USB cable to computer
Put battery in
Once in download mode let go of Volume UP and Down
You could always us the toolbox
http://forum.xda-developers.com/showthread.php?t=954509
try to do the same steps but hold the vol up button only (not the down)!
this the only way that i can get into download mode!
These guys listed about every way to get in to download mode. If none of them work, you are doing something wrong...
Are you running gingerbread or froyo?
Button sequences are different. Gingerbread uses one volume button(depending on the kernel either up or down) and the power button, while froyo uses the both volume buttons only.
Sent from my SGH-T959 using xda premium
(Depending on the level of softbricking you will either see the Android with a shovel or a phone and computer with exclamation mark, both are download modes)
Froyo bootloader:
Pull Battery,
Put Battery back in phone,
Hold only volume up and down at same time.
Insert USB.
GB Bootloader:
Pull Battery,
Put Battery back in,
Press and hold Volume Up+Power button.
These should work without flaw. If neither work for you, you may need to invest a couple bucks in getting a USB Jig.
Same issue witht similar results
I am having the same issue, Phone was rooted, on the Keis Gingerbread Update. When I tried to restore to Froyo, using T959UVJFD it got stuck in a boot loop, Tried to go to CWM cyogenmod using both Oden and Recovery and Odin Failed, Recovery gave me the evil Signature Failed.
So I tried a different Froyo EUGENE373 which bricked the phone. I was able to unbrick with onclickUnbrick (Awesome app, thank You). But when I tried to apply The Factory Froyo again it failed in Odin.
Now, the PC will not recognize the phone, USB divice failed message. I removed and reinstalled the drivers, Tried the Samsung Drivers, the Keis drivers and Hiendall drivers as well as the USB drivers with the ADK / SDK toolkit. I tried to connect the phone to another PC with the same result. I know that I am doing the process to get into Download mode properly, but it only displays the greyed out battery, with the USB unplugged the phoned boots to the Galasy S GT-I9000 Samsung screen and I am not able to get out of it with any button combo.
This is my wifes phone and I am in the doghouse for this one. I have rooted and flashed my Verizon Fascinate with no issues. Thank You for your help. if I can get into download mode I was going to follow the process in the NOOB root, flash sticky thread, unless someone has a better Idea.

Bricked my device?

Ok so here is what happened, I had 4.3 stock on, I wanted to install CM10, so I used Wugtoolkit to root, which I probably shouldn't have, anyway it went to reboot to fast mode and thats the last I seen of my N4,
Holding power does nothing, when I connect it to the computer the charging indicator comes up but the computer makes so connection sound. HELP
Can you get into the bootloader (volume down+power)?
slugger09 said:
Ok so here is what happened, I had 4.3 stock on, I wanted to install CM10, so I used Wugtoolkit to root, which I probably shouldn't have, anyway it went to reboot to fast mode and thats the last I seen of my N4,
Holding power does nothing, when I connect it to the computer the charging indicator comes up but the computer makes so connection sound. HELP
Click to expand...
Click to collapse
When the charging indicator comes up, try holding down only the volume down button (without holding power button). With luck this will allow you to access fastboot mode, and recovery from there.
szucsgf said:
When the charging indicator comes up, try holding down only the volume down button (without holding power button). With luck this will allow you to access fastboot mode, and recovery from there.
Click to expand...
Click to collapse
Thanks guys. Back in business again

TWRP install gone badly wrong i think

I have a problem after installing TWRP on my P9 Lite i have a screen saying:
Your device has been unlocked and can't be trusted
To Learn more, visit: long www adress
Your device is booting now...
Cant put a picture because i don't know how. But this is all it says, and then nothing else happens. Just stays on that screen. Can't connect to my pc or reboot in Recovery mode it always ends here.
Hopefully one of you guys can help. In a bit of panic.
Can't shut it down, everytime i try to turn it off, it reboots into this screen.
Can tell us some more information? Like what ROM are you on now, what TWRP you used etc..
Potato997 said:
Can tell us some more information? Like what ROM are you on now, what TWRP you used etc..
Click to expand...
Click to collapse
I Used TWRP 3.1.1.0 and havn't gooten to custom rom, i am on Android Nougat with EMUI 5.0.
Cant start it other then ending on this screen. I managed to get it booting again, but now my Bluetooth didn't work. So i tryed again and now i am stuck again.
It's a B380 Model
Potato997 said:
Can tell us some more information? Like what ROM are you on now, what TWRP you used etc..
Click to expand...
Click to collapse
Just tryed to make the dload folder on the root of my SDcard but still no success. I havn't been able to start boot screen other than this locked screen.
I have tryed to start with volume up + power both volume up and down + power and volume down + power. Nothing changes, just get this screen everytime.
Cant do anything, not even shut the phone down, it only reboots. I have seen other simular problems, but they have been able to get to the screen with 3 options. I havn't been able to come to that part.
Plug USB cable to your phone but not on your computer, restart the phone and as soon as it restart press volume + (or volume - I don't remember which is fastboot) and plug the USB cable to the computer. So you can check if the bootloader is unlocked
Potato997 said:
Plug USB cable to your phone but not on your computer, restart the phone and as soon as it restart press volume + (or volume - I don't remember which is fastboot) and plug the USB cable to the computer. So you can check if the bootloader is unlocked
Click to expand...
Click to collapse
I can't get to fastboot, dosn't matter what i do. I have no clue what have happened.
stubbeDk81 said:
I can't get to fastboot, dosn't matter what i do. I have no clue what have happened.
Click to expand...
Click to collapse
After i ran out of power and the phone went out. I have been able to boot again. Anybody who knows a bootloader i can install that works on my phone for sure. My bootloader is ****ed up.
It is unlocked now, so i have to be sure it works.

Hard brick [EU-axon mini 7] ?

Hi, I get this phone yesturday... I've installed last firemware ( 6.0 to 7.0.1 ) and after I tried with Tuliptool to install recovery but after this my phone dont show recovery when I tried so I was thinking I've forget to Unlock it before... and obvously I tried to unlock ( with tulip ) but I got error message in cmd ( I don't remerber... ) and now it show only Zte and it bootloop on it so I didn't have recovery, I can't use edl because I can't boot.. so there is something I can do or I bricked it in less than 1 day.. ? :S
Got the same problem
EDL can only be entered once the phone is completely off. You need to hold down volume up + volume down and then plug in the usb cable (dont touch the power button). The phone wont do anything, it will still look off but you will hear the device plugged in tone in Windows and will be able to find the device in zadiag. Also after a few attempts Windows stopped showing the device and I had to restart Windows before it worked again. Can you get this far?
dmo199 said:
EDL can only be entered once the phone is completely off. You need to hold down volume up + volume down and then plug in the usb cable (dont touch the power button). The phone wont do anything, it will still look off but you will hear the device plugged in tone in Windows and will be able to find the device in zadiag. Also after a few attempts Windows stopped showing the device and I had to restart Windows before it worked again. Can you get this far?
Click to expand...
Click to collapse
no my phone is just showing ZTE when it is booting then just instant turns off and starts again showing ZTE and it is doing that until the battery is empty
I did have that before, I'm not sure the exact combination I used, charge it up and then remove the cable, hold the power button and either the volume up, or volume down or both for anywhere between 5 and 20 seconds before letting go and seeing if it stays off. If it doesn't work try again and again and again, Its completely trial and error and took me a while to get it to work
dmo199 said:
EDL can only be entered once the phone is completely off. You need to hold down volume up + volume down and then plug in the usb cable (dont touch the power button). The phone wont do anything, it will still look off but you will hear the device plugged in tone in Windows and will be able to find the device in zadiag. Also after a few attempts Windows stopped showing the device and I had to restart Windows before it worked again. Can you get this far?
Click to expand...
Click to collapse
I'm not quite sure but on the European version of the Axon you can't do that by holding the buttons.
I understand that the only way to get in edl mode is software, no other choice than rebooting from the OS using the command adb reboot edl. So if you can't make your device completely started first, i guess it's bricked. But maybe i'm totally wrong.
vincent1967 said:
I'm not quite sure but on the European version of the Axon you can't do that by holding the buttons.
I understand that the only way to get in edl mode is software, no other choice than rebooting from the OS using the command adb reboot edl. So if you can't make your device completely started first, i guess it's bricked. But maybe i'm totally wrong.
Click to expand...
Click to collapse
I also messed up mine. I did everything until I had android 7, rooted, but lost IMEI. then I, THE IDIOT, tried to re-flash stcok android 6......booom. bricked.......
however.........power the phone off:
hold vol- power for 10 secs. phone should boot into FTM. then power it off by pressing power for about 5 secs. phone is off.
now vol+power and the phone should go to recovery, even if stuck on the logo, my pc reads it as recovery in adb devices......
tomorrow I'll see if I can get out from there. my experience doing this before is that from the recovery the ADB reboot edl works
cheers

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