Factory Reset Protection - find out previous account - Security Discussion

Hello
I had to do a hard reset on a Nexus 9 from our school that was stuck in a boot loop. The reset was successful but now I am asked to sign in with the previously used account. The problem is that each of our students uses a different Google account and I don't know which student was the last user of this tablet. The Google accounts used are from Google Apps for Education so if I knew the account name, I could easily reset its password and get access. But we have >200 accounts and I can hardly try each of them to sign in.
So how can I find out which was the previous account that was used on this tablet?
Thanks in advance
Chris

chrisderoover said:
Hello, I had to do a hard reset on a Nexus 9 from our school that was stuck in a boot loop...
Click to expand...
Click to collapse
Your best bet is to post this question within the following thread.
https://forum.xda-developers.com/showthread.php?t=2907915
Good Luck!
~~~~~~~~~~~~~~~
I DO NOT PROVIDE SUPPORT VIA PM UNLESS ASKED/REQUESTED BY MYSELF.
PLEASE KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE

Related

OEM Unlock HardCode?

Hi all,
I have bought Moto G3 XT1540 on AMAZON a couple of months ago
User (my nephew) forgot his pattern on the phone. Then he decided to wipe the phone thinking it was going to solve the issue. Unfortunately it is asking for Google account verification. Again, he does not know it.
I tried to flash the phone following steps on: http://forum.xda-developers.com/showthread.php?t=2542219
Everything is OK, but we need to check "OEM Unlock" on Android developer settings, which of course i cannot do since i cannot access the phone.
Is there any way to hard-code this or do something?
Regards,
First reset the password of the Google account. You can do this from any webbrowser. Google offers several ways to reset a password. E.g. via mail, SMS...
Not being able to revocer your own Google Account is pretty much impossible unless you deliberately setup the account in a way that in cannot be recovered. ?
Then you have to wait for 72 hours. After that the Moto G3 will accept the new password of the Google account.
Thanks for your prompt reply.
It is not working :s
u42671 said:
First reset the password of the Google account. You can do this from any webbrowser. Google offers several ways to reset a password. E.g. via mail, SMS...
Not being able to revocer your own Google Account is pretty much impossible unless you deliberately setup the account in a way that in cannot be recovered.
Then you have to wait for 72 hours. After that the Moto G3 will accept the new password of the Google account.
Click to expand...
Click to collapse
I think there should be any kind of option.
I will try to contact Motorola's support.
marian999 said:
Thanks for your prompt reply.
It is not working :s
Click to expand...
Click to collapse
Did you wait the 72 hours as per @u42671 instructions? You replied 3 hours after his post...
Thanks for tour reply.
Was the first thing I attempted to do, 1 week ago when the issue started.
I cannot perform the reset, this kid does not even remember which gmail account he used!
FROM Motorola:
*******************
Good Morning!
This is Esther from Motorola E-mail Support.
Thank you very much for the information provided.
My best advice will be to do a factory reset again Answer Title: Reset my device
Answer Link: https://motorola-global-portal.custhelp.com/app/answers/detail/a_id/105537
Unfortunately there will be no way to access to the device if you dont have the Gmail, password that you first used to set up this device. You need to have that information unfortunately we don't have that information and our only advice is a factory reset.
Your Reference Number is: 160221-007988
Please do not hesitate in contact us back if you need further help.
Phone number: 1-800-734-5870
Hours of Operation: Mon-Fri 7AM-10PM; Sat-Sun 9AM-6PM CST.
Kind regards,
Esther G.
Motorola Tech Support
*******************
acejavelin said:
Did you wait the 72 hours as per @u42671 instructions? You replied 3 hours after his post...
Click to expand...
Click to collapse
marian999 said:
Thanks for tour reply.
Was the first thing I attempted to do, 1 week ago when the issue started.
I cannot perform the reset, this kid does not even remember which gmail account he used!
FROM Motorola:
*******************
Good Morning!
This is Esther from Motorola E-mail Support.
Thank you very much for the information provided.
My best advice will be to do a factory reset again Answer Title: Reset my device
Answer Link: https://motorola-global-portal.custhelp.com/app/answers/detail/a_id/105537
Unfortunately there will be no way to access to the device if you dont have the Gmail, password that you first used to set up this device. You need to have that information unfortunately we don't have that information and our only advice is a factory reset.
Your Reference Number is: 160221-007988
Please do not hesitate in contact us back if you need further help.
Phone number: 1-800-734-5870
Hours of Operation: Mon-Fri 7AM-10PM; Sat-Sun 9AM-6PM CST.
Kind regards,
Esther G.
Motorola Tech Support
*******************
Click to expand...
Click to collapse
If you are the registered owner (ie. have a receipt w/matching IMEI or serial number, or purchased direct from Moto under your Moto account), you should be able to send it in to Motorola to have it "repaired".
Thanks for your reply. I guess we will have to do that.
I thought I could just fix it at home.
Regards!
acejavelin said:
If you are the registered owner (ie. have a receipt w/matching IMEI or serial number, or purchased direct from Moto under your Moto account), you should be able to send it in to Motorola to have it "repaired".
Click to expand...
Click to collapse
marian999 said:
Thanks for your reply. I guess we will have to do that.
I thought I could just fix it at home.
Regards!
Click to expand...
Click to collapse
Security and protection methods are far better than they used to be in Android, the intent is to keep the phone's data secure or prevent it from using your service or removing any gain (ie. sell it) from someone else, they are near impossible to circumvent in recent Android versions. To my knowledge no user here knows how, or are will share it if they do know, that is why I say "near impossible", the method is intended to be as close to foolproof as possible.
The only option that could possibly be available to try is to reflash the factory firmware from scratch via fastboot, but you must have the matching or newer factory image. There are potential risks, but it is the only other option. I know the Marshmallow 1GB images are available, and the lollipop 1GB&2GB images, but there is no Marshmallow 2GB image for the XT1540 at this time.
Also, I don't know if that will work or not, but it is the only other option in your power... note there is a potential risk of bricking the device if done incorrectly or the wrong fimware image is used, but it may be your only choice for self-repair at this point.
Your Google account, especially when tied to devices, is probably more valuable than the device itself and should be treated that way. I hope the "kid" at learns a lesson here.

S7 FRP Lock on - what to do?

Hello guys,
so long story short:
My dad sent me his "old" S7 (SM-G930F) and I didn't know that there was something like FRP Lock until now...
So I did reset it to factory standard and now i can't get into the phone... And it seems like the google account he is using atm is not the account he registered the
phone with. (I also needed to reset the password of his old account since he forgot the password - amusingly i never rly changed the password it just stayed the same)
More Problems:
I don't know if OEM settings are active...
I am a noob considering Phones! - I don't know if it makes sense to try to flash the phone...
My question now is: What should i do?
Thanks in advance!
regards
knexxy
P.S.: sorry to any admin if this is in the wrong section :/
knexxy said:
Hello guys,
so long story short: My dad sent me his "old" S7 (SM-G930F) and I didn't know that there was something like FRP Lock until now...
So I did reset it to factory standard and now i can't get into the phone... And it seems like the google account he is using atm is not the account he registered the phone with. (I also needed to reset the password of his old account since he forgot the password - amusingly i never rly changed the password it just stayed the same) More Problems:
I don't know if OEM settings are active...
I am a noob considering Phones! - I don't know if it makes sense to try to flash the phone... My question now is: What should i do? Thanks in advance! regards, knexxy P.S.: sorry to any admin if this is in the wrong section :/
Click to expand...
Click to collapse
One or both of the following threads should provide you with further information/support for your issue.
http://forum.xda-developers.com/showthread.php?t=3622126
http://forum.xda-developers.com/showthread.php?t=3518235
Good Luck!
~~~~~~~~~~~~~~~
I Am The Egg Man,
They Are The Egg Men.
I Am The Walrus!
Coo Coo Cachoo!
I DO NOT PROVIDE SUPPORT VIA PM UNLESS ASKED/REQUESTED BY MYSELF.
PLEASE KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE

Account action required/sync not working

Hello XDA! Since yesterday on my HTC 10 running a custom ROM(don't know if it makes a difference) I get this notification from Google play services. It says account action required and when I tap on it, it asks for my Gmail and password. I put in the right combination and pretty much nothing happens.
The big problem is that almost no Google app works now. YouTube, G+, Hangouts etc. Chrome and others do work tough.
I tried putting in a wrong password and it definitely knows that it's the wrong one so I'm thinking I'm not being hacked.any ideas?
I forgot to add that in settings and Google account it says that sync isn't working, will be back shortly. It's been a whole day though.
Sent from my HTC 10 using Tapatalk
NEO2598 said:
Hello XDA! Since yesterday on my HTC 10 running a custom ROM(don't know if it makes a difference) I get this notification from Google play services. It says account action required and when I tap on it, it asks for my Gmail and password. I put in the right combination and pretty much nothing happens...
Click to expand...
Click to collapse
I don't have this device but, the following area of the forum is dedicated to your device.
https://forum.xda-developers.com/htc-10
With that stated...
Your best bet is to post this question within the following thread.
https://forum.xda-developers.com/showthread.php?t=3527639
Good Luck!
~~~~~~~~~~~~~~~
I DO NOT PROVIDE SUPPORT VIA PM UNLESS ASKED/REQUESTED BY MYSELF.
PLEASE KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE

Google Play Music and flashaholics

Is there any way of getting around the Google Play deauthorization limit? I had the OP5, and was flashing different P ROMs. Last week I chatted with Google support and, they provided me the one-time reset of my devices, maxed out my number of devices and couldn't deauthorize even though I hadn't done so in over a year.
I'm probably going to stick with OOS with this phone, just wary of updating stock ROMs through TWRP and it counting against my device limit. Or do y'all use YouTube Music or Spotify?
Bump
Any solutions anyone?
candiesdoodle said:
Bump
Any solutions anyone?
Click to expand...
Click to collapse
I had the same problem. The guys at Google reset my whole device list twice this year !
But at the end i went for Spotify. Because it doesn't have a real device limit, and other things (daily mixes and Clock app integration, and because my old account at college never has be deactivated, so Spotify still allows me the student discount )
But i suppose you could just email them each time you reach the limit, and explaining you're just flashing ROMs, they wouldn't refuse to reset the device list, as it clearly shows the same device multiple times. They can perform this "one-time reset" more than once haha !
Totone56 said:
I had the same problem. The guys at Google reset my whole device list twice this year !
But at the end i went for Spotify. Because it doesn't have a real device limit, and other things (daily mixes and Clock app integration, and because my old account at college never has be deactivated, so Spotify still allows me the student discount )
But i suppose you could just email them each time you reach the limit, and explaining you're just flashing ROMs, they wouldn't refuse to reset the device list, as it clearly shows the same device multiple times. They can perform this "one-time reset" more than once haha !
Click to expand...
Click to collapse
Thanks for sharing this info
I have got it reset once. Let's hope they do again when I hit the limit
candiesdoodle said:
Thanks for sharing this info
I have got it reset once. Let's hope they do again when I hit the limit
Click to expand...
Click to collapse
I've had it reset twice within a year. It's B.S. though you can only deauthourize 4 in 12 months. What do they care as long as it doesn't exceed the limit. They where hesitant the last time and acted like it was a process even though I know they just flip a switch. Took about 20 min or being on hold. But I said I am a rom tester on xda and they accepted that answer.
---------- Post added at 03:14 PM ---------- Previous post was at 03:13 PM ----------
Totone56 said:
I had the same problem. The guys at Google reset my whole device list twice this year !
But at the end i went for Spotify. Because it doesn't have a real device limit, and other things (daily mixes and Clock app integration, and because my old account at college never has be deactivated, so Spotify still allows me the student discount )
But i suppose you could just email them each time you reach the limit, and explaining you're just flashing ROMs, they wouldn't refuse to reset the device list, as it clearly shows the same device multiple times. They can perform this "one-time reset" more than once haha !
Click to expand...
Click to collapse
Does Spotify have just as big as a music collection as Google play?
Gizmoe said:
I've had it reset twice within a year. It's B.S. though you can only deauthourize 4 in 12 months. What do they care as long as it doesn't exceed the limit. They where hesitant the last time and acted like it was a process even though I know they just flip a switch. Took about 20 min or being on hold. But I said I am a rom tester on xda and they accepted that answer.
---------- Post added at 03:14 PM ---------- Previous post was at 03:13 PM ----------
Does Spotify have just as big as a music collection as Google play?
Click to expand...
Click to collapse
All i know is I've never had any problem finding anything ! In my case, everything I like to listen to is on both services, they are pretty on par about 90% functionality.
GPM has a better preloading mechanism, Spotify has better suggestions, but that's it.
About the resetting on GPM, I also told them that the same device was registered countless times due to flashing ROMs regularly, they understood and didn't ask for more !
If you restore data with titanium backup before you open the music app does it still register a new device?
Boblank said:
If you restore data with titanium backup before you open the music app does it still register a new device?
Click to expand...
Click to collapse
Yes it does for me unfortunately. That's the sad part
Boblank said:
If you restore data with titanium backup before you open the music app does it still register a new device?
Click to expand...
Click to collapse
I've tried it too with no success.
Gizmoe said:
I've tried it too with no success.
Click to expand...
Click to collapse
i wonder if backing up the "settings storage" package which im pretty sure contains the android id would do anything. Might be worth a try.
Boblank said:
i wonder if backing up the "settings storage" package which im pretty sure contains the android id would do anything. Might be worth a try.
Click to expand...
Click to collapse
I've restored a rom backup before and it stayed registered. So there is a file or a combination of files that will work, I just have not found it. I was thinking it may be the Google play services data combined with android ID and the system private app files for play music, but titanium backup doesn't restore that stuff properly so I gave up.

Combination file for n950usqs5crj3

Combination file help
Not sure but I need to frp bypass
I think I can downgrade file as long as it's a sqs5
Bootloader 5
n950usqs5crj3
Any help could be great
Makave71 said:
Combination file help
Not sure but I need to frp bypass
I think I can downgrade file as long as it's a sqs5
Bootloader 5
n950usqs5crj3
Any help could be great
Click to expand...
Click to collapse
Why do you need to bypass the FRP? Just put your email and password in and you'll be fine and won't need to do that.
Well I buy it cheap off someone that couldn't do anything with it because he don't know much so now I'm trying to do this so my wife can use the phone
If you can help with that great
Because I know the obvious way is put in info lol
Makave71 said:
Well I buy it cheap off someone that couldn't do anything with it because he don't know much so now I'm trying to do this so my wife can use the phone
If you can help with that great
Because I know the obvious way is put in info lol
Click to expand...
Click to collapse
Sorry man I can't help you because when someone is trying to bypass the FRP security it's usually because the phone was stolen from someone and I'd rather not give out my combination firmware for that reason.. You can call the carrier that the phone came from and ask them to help you and if it hasn't been reported stolen then they'll get it off.
Discussions about FRP without proof of ownership aren't allowed on XDA.
FRP is there for exactly this reason, its meant to protect stolen phones from being used again illegally.
This is Samsung's instructions on what you can do about FRP:
If you already reset your device, but don't remember your Google username and/or password, the device can't be used. In that case, you can do one of these:
If you know your Google username but can't remember the password, you can reset your password on the device, or at www.google.com. It can take up to 24 hours for a new password to sync with all registered devices. After 24 hours, you can try logging in to your phone with the new password.
If you have multiple Google Accounts, and you can't remember which Google Account you set up on your device, visit https://www.google.com/android/devicemanager.
Log in with your Google username and password and check the list of devices registered to the account. If you don't see the device listed on the account, it means the device is registered to a different account. Use the same process to check for devices linked to your other Google Accounts. When you find the registered account, use it to log in to your device.
If you can't remember any of your Google Account information, you can send your device, along with proof of purchase, to an authorized Samsung Service Center. Samsung has special tools to reset the phone to factory defaults with no protection enabled.
Click to expand...
Click to collapse
Source: https://www.samsung.com/us/support/frp/
Furthermore:
If you've bought a phone that is FRP locked you should take it up with the seller and get them to tell you what the Google sign-in details are, and if they refuse to tell you then make sure you ask where they got the phone from. Do not try to break the lock yourself!
Thread closed.
Camo.
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