[Q] Black screen after trying to unroot. - Nexus 5 Q&A, Help & Troubleshooting

Hello XDA,
2 days ago I installed CyanogenMod via their new installer everything went great. After a 2 days of testing I decided that the Nexus 5 is a great phone and doesn't need any custom rom (atleast not for me). So I followed this guide to unrooting the device and setting it back to the stock rom.
http://forum.xda-developers.com/google-nexus-5/general/tutorial-how-to-flash-factory-image-t2513701
I selected recovery and after that I'm supposed to see a dead android. But I'm not seeing anything my screen is black. I can some light so it is still turned on.
I'm kinda freaking out over here so I really could use some help on restoring this ( if its possible ).
Greetings,
Liquidfood.
I'm dutch so my English might not be perfect.

Can you get into the bootloader? Our is your screen black too? I would try to flash the factory image again
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jd1639 said:
Can you get into the bootloader? Our is your screen black too? I would try to flash the factory image again
Sent from my Nexus 5 using XDA Free mobile app
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My phone isn't responding to anything holding the power button unplugging usb nothing.

liquidfood said:
My phone isn't responding to anything holding the power button unplugging usb nothing.
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That's not a good sign. Look for the LG flash tool, I believe it's in the general forum and try that. I think it's your only hope at this point.
Sent from my Nexus 5 using XDA Free mobile app

jd1639 said:
That's not a good sign. Look for the LG flash tool, I believe it's in the general forum and try that. I think it's your only hope at this point.
Sent from my Nexus 5 using XDA Free mobile app
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Ok going to try it right now. Sweating heavily at this point...

it doesn't seem to work because I can't get into fastboot.

liquidfood said:
it doesn't seem to work because I can't get into fastboot.
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Rma is your last resort
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jd1639 said:
Rma is your last resort
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How you should I go about this. I still have warranty in the store that I bought it form ( probably not because bootloader is unlocked. ). But I wanna try it anyways should I tell them the truth or not? And can I send it directly to google/lg?

Ok so a miracle happend. I got it to work again, I let the battery drain and hooked it up to my computer and got in the bootloader. So I flashed the rom again and now it worked!

Related

any way to unroot nexus s with a broken power button!?!?!

I bought the black tie from best buy and I want to send in my phone for repair because my power button doesn't do anything, but first......... Can someone please tell me how I can revert to stock settings as in having a locked boot loader and a stock build........I currently have cm7 (the old unfinished one since it broke like 4 months ago)
I just decided I cant take it anymore since sometimes the anyunlock app makes my phone unlock in my pocket and stays on all day and drains the battery super fast!
please help me with my dilemma! :C
no replies :/
Try to boot in recovery with rom manager and select fast boot mode .
Sent from my Nexus S using XDA Premium App
doomi77 said:
Try to boot in recovery with rom manager and select fast boot mode .
Sent from my Nexus S using XDA Premium App
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I cant select anything since the power button (select button in this case) doesnt work
Or am I on another page here? lol
open rom manager app, then select reboot in recovery then fastboot and selects instead of taking your power button select the search button it work!
Sent from my Nexus S using XDA Premium App
Sorry for my english, but I try to explain the better I can !
Sent from my Nexus S using XDA Premium App
http://forum.xda-developers.com/showthread.php?t=1193502 ?
Greetz
doomi77 said:
Sorry for my english, but I try to explain the better I can !
Sent from my Nexus S using XDA Premium App
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Its ok, but I tried and it doesnt work also the volume keys wont do anything in recover :/
frutelaken said:
http://forum.xda-developers.com/showthread.php?t=1193502 ?
Greetz
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thanks but i had already seen it and couldnt find anything to resolve my problem :'(
I don't undetstand why it dosent work ! It work on mine . Try to get an exchange by your supplier even you are rooted, it's a hardware problem, who knows!
Sent from my Nexus S using XDA Premium App
Go ahead to best buy and send it in, my phone quit booting and best buy took care of it and i even got it back with all my data still on it and the phone still running CM7.
cropythy said:
Go ahead to best buy and send it in, my phone quit booting and best buy took care of it and i even got it back with all my data still on it and the phone still running CM7.
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may i ask how long it took for u to finally have it back fixxed?
doomi77 said:
I don't undetstand why it dosent work ! It work on mine . Try to get an exchange by your supplier even you are rooted, it's a hardware problem, who knows!
Sent from my Nexus S using XDA Premium App
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maybe different model?
Use fastboot from your PC. Everything is controlled from CMD Prompt. Look at Pete's tutorial. Just need to setup the drivers. Check the stickies.
Sent from my Nexus S 4G using XDA App
Just have it fixed through best buy it takes 3 business days I sent mine in on Thursday and got it Monday since obviously weekends don't count. My power button wasn't working either and I was rooted and unlocked bootloader..just save all your data since they might just give you a new nexus like me
Sent from my Google Nexus S using XDA App
doesnt black tie give you a new phone right there?
also try, inserting the battery in while its plugged in. It may turn on automatically.
xdahd2 said:
I bought the black tie from best buy and I want to send in my phone for repair because my power button doesn't do anything, but first......... Can someone please tell me how I can revert to stock settings as in having a locked boot loader and a stock build........I currently have cm7 (the old unfinished one since it broke like 4 months ago)
I just decided I cant take it anymore since sometimes the anyunlock app makes my phone unlock in my pocket and stays on all day and drains the battery super fast!
please help me with my dilemma! :C
Click to expand...
Click to collapse
If ur bootloader is unlocked, switch off the fon, connect the phone to computer by pressing both volume keys and connect the using data cable. Ur fon wil enter into download mode. So u can flash rom and all with odin.
Sent from my Nexus S using XDA App
heartblasts said:
If ur bootloader is unlocked, switch off the fon, connect the phone to computer by pressing both volume keys and connect the using data cable. Ur fon wil enter into download mode. So u can flash rom and all with odin.
Sent from my Nexus S using XDA App
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I'm sorry but idk what odin is, i never came across that word when I was flashing roms......could u please post a link with the tutorial? thx!
tylerwatt12 said:
doesnt black tie give you a new phone right there?
also try, inserting the battery in while its plugged in. It may turn on automatically.
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I know how to turn it on.......I want to know how to revert to stock everything and lock bootloader again
xdahd2 said:
I'm sorry but idk what odin is, i never came across that word when I was flashing roms......could u please post a link with the tutorial? thx!
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simply to say, Odin is like PC version of recovery...
some other model like Galaxy Ace flash via that.
i know it on Galaxy Ace but not Nexus S....
you should try google it...
qtwrk said:
simply to say, Odin is like PC version of recovery...
some other model like Galaxy Ace flash via that.
i know it on Galaxy Ace but not Nexus S....
you should try google it...
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can't find anything that helps on the internet :/

Stock ICS random reboots to dead android robot with red triangle?

All my searching (xda, google, phandroid) attempts only came up with people having problems flashing roms. THIS IS NOT THAT.
I have a Nexus S 4G (d720) running stock 4.0.4 (never rooted or flashed a rom on this phone). As of about 3 hours ago, my phone has reset itself four times. 3/4 rebooting to android robot with red triangle. The last one reboot to the google logo and then was stuck for 10 minutes. Any thoughts on what could be causing this? Any help is appreciated. Thanks in advance.
Without fail, it's done it every night for four nights. Can anyone help?
Sent from my Nexus S 4G using xda app-developers app
Have you tried a factory reset?
andrewhansen86 said:
Have you tried a factory reset?
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Yes. Tried it yesterday. it didn't shut off all day...until i woke up late today because it spazzed out and my alarm failed.
Sent from my Nexus S 4G using xda app-developers app
Now, it restarts to a screen of the android robot and a rotating light blue wireframe complex shape of some sort...then it changes to the dead robot with the red exclamation mark. I don't even know what to google anymore....any help??
If it has never been unlocked, rooted and completely stock...I would just take it in for service. If you want to root and flash then we can help :thumbup:
Sent from my Nexus S using xda premium
jayjay3333 said:
If it has never been unlocked, rooted and completely stock...I would just take it in for service. If you want to root and flash then we can help :thumbup:
Sent from my Nexus S using xda premium
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I'll take it in tomorrow, if they can't help...would it change anything to root and flash a rom? or could it be something hardware related?
Found a post with a similar problem here. It looks like going to the sprint store won't help much...
Take it in first. If not I say root and see if that solves it.
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jayjay3333 said:
Take it in first. If not I say root and see if that solves it.
Sent from my Nexus S using xda premium
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I took it in, they did a "Factory Factory Reset" where they have to input a "special code" and it spazzed out within 5 minutes of me turning it on. So completely stock, no apps, no nothing. fresh out of the box and synced to my gmail, it did the same thing. The only new thing I've put on my phone in the last month has been a Zagg screen protector...and I'm fairly certain that has nothing to do with it. So they ordered me a new one, hopefully it lasts longer than this one. Thanks for your help.
Glad it worked out.
Sent from my Nexus S using xda premium

[Q] Nexus 5 or Nexus 4

the casing is a Nexus 5 but it detects it as a Nexus 4 i wanted to root and put another firmware in it but my windows is not properly detecting this device can someone please point to a right direction to properly root this device thanks
You also seem to have a test build of key lime pie. This is definitely strange.
Sent from my Nexus 5 using Tapatalk
Looks like a pre-launch device.
Did you buy this from Google or your carrier? What version are you running?
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Neurotica said:
Looks like a pre-launch device.
Did you buy this from Google or your carrier? What version are you running?
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MakoVince said:
You also seem to have a test build of key lime pie. This is definitely strange.
Sent from my Nexus 5 using Tapatalk
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@Neurotica i got it from one of the wireless stores around my area he was selling them for cheap so i took a bite on it but any methods of trying to root it or getting my pc to read it is not working any suggestions?
@MakoVince is there somthing i could do with it as far as rooting it and changing the ROM? im new to Android devices so im not sure what to do with this phone
I'd suggest that you try to update your device while it is still stock. Sideload the updates until you read KitKat.
Sent from my Nexus 5 using xda app-developers app
0. Unlock the bootloader
1. Install CWM or TWRP via fastboot
2. Back up the pre-release software and save it on your computer
3. Install 4.4.2 factory image via fastboot to 'fix' your device
4. Share the backup you made, because it's interesting
msrecinto666 said:
the casing is a Nexus 5 but it detects it as a Nexus 4 i wanted to root and put another firmware in it but my windows is not properly detecting this device can someone please point to a right direction to properly root this device thanks
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Do what rusty said, you dont even know how lucky you are . We missed an oppurtinity to get a an early prerelease system once. I hope we don't lose the chance again.
Follow these instruction https://www.youtube.com/watch?v=KnlUdjUaD3Q when you come to the point to select build number select any build.
boot into recovery make a backup and uploadit somwhere
Sent from my LG-P990 using xda app-developers app

Possible Soft Brick? NEED HELP URGENTLY

So today while I was in the car my phone restarted and came back on. When I unlocked it it kept giving me the message "Unfortunately Android System has Stopped" I did a factory restore and when phone booted up all was back to normal. Then I rooted again installed super su and it did the same thing, Went through and factory restored but now I'm not sure what to do. I could still take it back to store and get them to replace because I'm within 14 days. But that would be last resort.
Pure+ said:
So today while I was in the car my phone restarted and came back on. When I unlocked it it kept giving me the message "Unfortunately Android System has Stopped" I did a factory restore and when phone booted up all was back to normal. Then I rooted again installed super su and it did the same thing, Went through and factory restored but now I'm not sure what to do. I could still take it back to store and get them to replace because I'm within 14 days. But that would be last resort.
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So you get the "Unfortunately Android System has Stopped" when you root?
BAM1789 said:
So you get the "Unfortunately Android System has Stopped" when you root?
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Yeah. I use towel root to get root. Then install SuperSU app. It updates binaries and prompts a reboot to finish and upon reboot I get that message again.
Sent from my LG-D850 using Tapatalk
BAM1789 said:
So you get the "Unfortunately Android System has Stopped" when you root?
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I mean I didn't do anything that could've caused the issue. I was typing a text when the phone restarted on me. Now I'm stuck stock no root or anything. Can't even use the LG backup tool to restore my stuff that I had before ever rooting. It causes same message to happen. Hell I'm afraid to reboot my phone or even let it run dead because it might give me the same message.
Sent from my LG-D850 using Tapatalk
Pure+ said:
Yeah. I use towel root to get root. Then install SuperSU app. It updates binaries and prompts a reboot to finish and upon reboot I get that message again.
Sent from my LG-D850 using Tapatalk
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Very weird.. You could try Flashing the stock firmware and see if that helps. Are you on 10D?
BAM1789 said:
Very weird.. You could try Flashing the stock firmware and see if that helps. Are you on 10D?
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I'm not sure. How would I flash stock software? I know I need the LG flash tool. Which I've been on Google for the past 45 minutes searching for because there isn't any clear indication of what the right tool is. And then how would I get the software after I'm able to find the tool?
Sent from my LG-D850 using Tapatalk
http://forum.xda-developers.com/showthread.php?t=2799647
Hope this helps. Post 1
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roughneckboren said:
http://forum.xda-developers.com/showthread.php?t=2799647
Hope this helps. Post 1
Sent from my LG-D850 using XDA Premium 4 mobile app
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Marvelous. Thank you. Hopefully this works if not I guess I'll get a new phone.
Sent from my LG-D850 using Tapatalk
There's also this thread for the D850: http://forum.xda-developers.com/att-lg-g3/general/unroot-return-to-factory-stock-att-lg-g3-t2820827
roughneckboren said:
http://forum.xda-developers.com/showthread.php?t=2799647
Hope this helps. Post 1
Sent from my LG-D850 using XDA Premium 4 mobile app
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BAM1789 said:
There's also this thread for the D850: http://forum.xda-developers.com/att-lg-g3/general/unroot-return-to-factory-stock-att-lg-g3-t2820827
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Please don't tell I need a f**king windows computer.
Pure+ said:
Please don't tell I need a f**king windows computer.
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Okay I won't tell you..... Haha
BAM1789 said:
Okay I won't tell you..... Haha
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TGIgrandparents, old school and never made the switch to mac. YES!!!!!!!
BAM1789 said:
Okay I won't tell you..... Haha
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Took me about an hour or so but I was finally able to get the damn flash tool working. Now I have to wait 45 minutes for the software to flash. Why so slow? Whatever, as long as this works I'll be ecstatic. Thanks for the guidance.
Pure+ said:
Took me about an hour or so but I was finally able to get the damn flash tool working. Now I have to wait 45 minutes for the software to flash. Why so slow? Whatever, as long as this works I'll be ecstatic. Thanks for the guidance.
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Good luck dude! Hope it works out for you!
BAM1789 said:
Good luck dude! Hope it works out for you!
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Ended up taking all of 2 minutes to flash. Used LG restore tool and everything restored fine. Android System no longer FC's and I'm about to root and install SuperSU to make sure all is well.
Good to hear man!
Sent from my LG-D850 using XDA Premium 4 mobile app
BAM1789 said:
Good luck dude! Hope it works out for you!
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roughneckboren said:
Good to hear man!
Sent from my LG-D850 using XDA Premium 4 mobile app
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Thanks again to both of you for all the help. Wouldn't have figured it out otherwise.
Same thing happened to me after I did a factory reset of the att g3 rooted. I didn't unroot first. After another factory reset, it booted without the fc. When I removed the SIM and booted again, I got the fc. Even after it goes away, it seems that rebooting makes it come back. This happened randomly and I tried for days to figure it out. I eventually just returned the device and got the TMO g3.
Sent from my LG-D851 using XDA Premium 4 mobile app

Formatting doesnt help at all

I have recently rooted my nexus and i immediately downloaded lucky patcher to patch some games. After a little bit it was boring to have everything owned and i resetted my phone to factory settings but still everything was there. No back ups, new acc made to sign in, wiped cache, dalvik cache and format. Nothing worked. How can i delete EVERYTHING in my phone? I want it to be like a new one. Any suggestions? Even when it says welcome and select language the language is in Greek (my region). Its driving me crazy.
EDIT :Also Flashed stock rom but with no success
Twitterino said:
I have recently rooted my nexus and i immediately downloaded lucky patcher to patch some games. After a little bit it was boring to have everything owned and i resetted my phone to factory settings but still everything was there. No back ups, new acc made to sign in, wiped cache, dalvik cache and format. Nothing worked. How can i delete EVERYTHING in my phone? I want it to be like a new one. Any suggestions? Even when it says welcome and select language the language is in Greek (my region). Its driving me crazy
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Flash the factory image with fastboot. See lethargy's roll up sticky in the general forum
Sent from my Nexus 9 using XDA Free mobile app
jd1639 said:
Flash the factory image with fastboot. See lethargy's roll up sticky in the general forum
Sent from my Nexus 9 using XDA Free mobile app
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You mean flashing stock rom? If yes, I've done that but with no success
Twitterino said:
You mean flashing stock rom? If yes, I've done that but with no success
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Have your flashed it with fastboot? https://developers.google.com/android/nexus/images Download the file for the n5. It's a .tgz. Extract it with winrar or 7-zip
Sent from my Nexus 9 using XDA Free mobile app
jd1639 said:
Have your flashed it with fastboot? https://developers.google.com/android/nexus/images Download the file for the n5. It's a .tgz. Extract it with winrar or 7-zip
Sent from my Nexus 9 using XDA Free mobile app
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Yeap! I did This.The second method because with the first i had problems
Twitterino said:
Yeap! I did This.The second method because with the first i had problems
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Ok, that's not good. What happens if you lock your bootloader and then reboot. Does it stay locked?
Sent from my Nexus 9 using XDA Free mobile app
jd1639 said:
Ok, that's not good. What happens if you lock your bootloader and then reboot. Does it stay locked?
Sent from my Nexus 9 using XDA Free mobile app
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Im off to bed now i will reply as soon as i get up
Talk about karma. I have a suggestion, if you want paid content, then do the right thing and pay for it.
jd1639 said:
Ok, that's not good. What happens if you lock your bootloader and then reboot. Does it stay locked?
Sent from my Nexus 9 using XDA Free mobile app
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So i locked it and it locked just fine!
unlock the bootloader again, it will wipe everything.
siren215 said:
unlock the bootloader again, it will wipe everything.
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still no luck mate....Still no luck..
Twitterino said:
still no luck mate....Still no luck..
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What's not working? Is there a particular image file that fails?
Sent from my Nexus 5 using XDA Free mobile app
jd1639 said:
What's not working? Is there a particular image file that fails?
Sent from my Nexus 5 using XDA Free mobile app
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Everything works. All images flashed correctly but still no luck.Whenever i visit the coin shop for example the money that i had just pop up from nowhere.If i dont go to the purchase money tab everything is working like new.
BirchBarlow said:
Talk about karma. I have a suggestion, if you want paid content, then do the right thing and pay for it.
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For that, he must go to bed and get up couple more times.

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