Database Develop

Going back from 5.1 to 5.0

Can you go back to 5.0 after flashing 5.1 Roms? Was just wondering because seen a lot of bricks ..Some bricks from licked bootloaders others from flashing..I just don't want to brick because I bought mine from someone and don't have insurance .Unless it could fall under factory warranty replacement....
Sent from my Nexus 6 using Tapatalk

You can upgraded / downgrade from any ROM. Its not a HTC
The locked boot loader issue is user error. If you lock the BL and the phone doesn't boot, you'll have to get Moto to fix it. And yes that would be covered by warranty

rootSU said:
You can upgraded / downgrade from any ROM. Its not a HTC
The locked boot loader issue is user error. If you lock the BL and the phone doesn't boot, you'll have to get Moto to fix it. And yes that would be covered by warranty
Click to expand...
Click to collapse
Do I need to flash old boot loader or radio? Thanks for your time.....mods are welcome to delete
Sent from my Nexus 6 using Tapatalk

kenbrownstone said:
Do I need to flash old boot loader or radio? Thanks for your time.....mods are welcome to delete
Sent from my Nexus 6 using Tapatalk
Click to expand...
Click to collapse
It depends what you're expecting in future. If you want OTA, you'll need everything to be 100% stock and the right version. If you don't care about that, minimum is system.img and boot.img.

i tried to downgrade my bootloader through fastboot from 5.1's bootloader to 5.0.1 and fastboot throws an error from moto saying it cant be downgraded.
have a question. is it ok to flash the factory 5.0.1 system and boot while on the 5.1 bootloader and radio? i have read a few threads of people bricking but it's unclear if it's possible to use an aosp rom that's 5.0.1 or 5.0.2 on 5.1 bootloader and radio.

freebee269 said:
have a question. is it ok to flash the factory 5.0.1 system and boot while on the 5.1 bootloader and radio? i have read a few threads of people bricking but it's unclear if it's possible to use an aosp rom that's 5.0.1 or 5.0.2 on 5.1 bootloader and radio.
Click to expand...
Click to collapse
I had been running Chroma 5.02 with the 5.1 bl and radio. I reverted the radio because of issues with TMo, but the bl seemed fine. FWIW, I made all my changes via fastboot.

kenbrownstone said:
Can you go back to 5.0 after flashing 5.1 Roms? Was just wondering because seen a lot of bricks ..Some bricks from licked bootloaders others from flashing..I just don't want to brick because I bought mine from someone and don't have insurance .Unless it could fall under factory warranty replacement....
Sent from my Nexus 6 using Tapatalk
Click to expand...
Click to collapse
Just make sure you have OEM Unlock checked under dev options and you will be fine.
Sent from my Nexus 6 using XDA Free mobile app

Konfuzion said:
Just make sure you have OEM Unlock checked under dev options and you will be fine.
Sent from my Nexus 6 using XDA Free mobile app
Click to expand...
Click to collapse
It resets on boot. Check it boots before relocking

rootSU said:
It resets on boot. Check it boots before relocking
Click to expand...
Click to collapse
Since it gets reset then do I need to recheck OEM unlock option at every boot or its fine to leave it as it and I can reboot anyway I want?

naresh2990 said:
Since it gets reset then do I need to recheck OEM unlock option at every boot or its fine to leave it as it and I can reboot anyway I want?
Click to expand...
Click to collapse
It really depends what you want to do. If your bootloader is remaining unlocked, it doesn't matter. If you are locking it again, to unlock it, you must set the option before booting to bootloader so if you want to minimise risk, then you will need to set it every boot. We do not know where this setting is stored yet. I really don't understand the need for this option to be honest.

rootSU said:
It really depends what you want to do. If your bootloader is remaining unlocked, it doesn't matter. If you are locking it again, to unlock it, you must set the option before booting to bootloader so if you want to minimise risk, then you will need to set it every boot. We do not know where this setting is stored yet. I really don't understand the need for this option to be honest.
Click to expand...
Click to collapse
Seriously this thing is giving me a headache, I am not going to toggle anything in bootloader now and it's a pain to check this option everytime before doing a reboot, it was good before 5.1, it used to stay as it is.

naresh2990 said:
Seriously this thing is giving me a headache, I am not going to toggle anything in bootloader now and it's a pain to check this option everytime before doing a reboot, it was good before 5.1, it used to stay as it is.
Click to expand...
Click to collapse
Just leave it unlocked. If you plan on manually updating I don't understand why you would lock it. just in case something goes wrong if it's unlocked you have options. If it's locked you have very, very few
Sent from my Nexus 6 using Xparent Skyblue Tapatalk 2

rootSU said:
It really depends what you want to do. If your bootloader is remaining unlocked, it doesn't matter. If you are locking it again, to unlock it, you must set the option before booting to bootloader so if you want to minimise risk, then you will need to set it every boot. We do not know where this setting is stored yet. I really don't understand the need for this option to be honest.
Click to expand...
Click to collapse
The setting is due to Google's new anti theft options ( http://www.androidpolice.com/2015/0...evice-protection-feature-and-how-do-i-use-it/ ) . If you have OEM Unlock checked this protection can easily be bypassed with a flash.
Sent from my Nexus 6 using XDA Free mobile app

pwned3 said:
Just leave it unlocked. If you plan on manually updating I don't understand why you would lock it. just in case something goes wrong if it's unlocked you have options. If it's locked you have very, very few
Sent from my Nexus 6 using Xparent Skyblue Tapatalk 2
Click to expand...
Click to collapse
I am not going to lock my bootloader. I like it Unlocked but my point of concern is that OEM unclock option get reset to uncheck at every boot. I want to know what will happen if I reboot my phone and OEM unclock option is unchecked(means bootloader is locked, this is what I think) while my bootloader is actually Unclocked.

Konfuzion said:
The setting is due to Google's new anti theft options ( http://www.androidpolice.com/2015/0...evice-protection-feature-and-how-do-i-use-it/ ) . If you have OEM Unlock checked this protection can easily be bypassed with a flash.
Sent from my Nexus 6 using XDA Free mobile app
Click to expand...
Click to collapse
But who really cares if a thief can "use" the phone when it is stolen? They can't use it as a phone because the IMEI will be blocked. If they unlock it, it will wipe your data too. I'd rather not have to set an option within android to allow me to unlock my bootloader and the problems here have proven this to be a detriment to people who flash.

naresh2990 said:
I am not going to lock my bootloader. I like it Unlocked but my point of concern is that OEM unclock option get reset to uncheck at every boot. I want to know what will happen if I reboot my phone and OEM unclock option is unchecked(means bootloader is locked, this is what I think) while my bootloader is actually Unclocked.
Click to expand...
Click to collapse
rootSU said:
But who really cares if a thief can "use" the phone when it is stolen? They can't use it as a phone because the IMEI will be blocked. If they unlock it, it will wipe your data too. I'd rather not have to set an option within android to allow me to unlock my bootloader and the problems here have proven this to be a detriment to people who flash.
Click to expand...
Click to collapse
I am confused about something if the device is already unlocked does it matter if that OEM is ticked? I reboot twice already and it reset it back to being unticked. So what I am saying is if i go from one rom to another and that isnt ticked will it cause issues even if the bootloader is already unlocked?

naresh2990 said:
I am not going to lock my bootloader. I like it Unlocked but my point of concern is that OEM unclock option get reset to uncheck at every boot. I want to know what will happen if I reboot my phone and OEM unclock option is unchecked(means bootloader is locked, this is what I think) while my bootloader is actually Unclocked.
Click to expand...
Click to collapse
No if it is unchecked your bootloader is still unlocked, but you will not be able to unlock it again without booting into your device and checking it again.
Where people are getting bricks is they are downgrading their radio and bootloader, at which point their bootloader relocks, and they are stuck at bootloader as they can't access anything other than bootloader and that is locked.
Sent from my Nexus 6 using XDA Free mobile app
---------- Post added at 07:56 AM ---------- Previous post was at 07:50 AM ----------
the_rooter said:
I am confused about something if the device is already unlocked does it matter if that OEM is ticked? I reboot twice already and it reset it back to being unticked. So what I am saying is if i go from one rom to another and that isnt ticked will it cause issues even if the bootloader is already unlocked?
Click to expand...
Click to collapse
No issues going from Rom to Rom with it unchecked. Issue lies in... No OS so you can't boot up and check oem unlock, stuck at a locked bootloader screen, so you can't flash a custom recover, can't restore because you can't access recovery.
Sent from my Nexus 6 using XDA Free mobile app

Konfuzion said:
No if it is unchecked your bootloader is still unlocked, but you will not be able to unlock it again without booting into your device and checking it again.
Where people are getting bricks is they are downgrading their radio and bootloader, at which point their bootloader relocks, and they are stuck at bootloader as they can't access anything other than bootloader and that is locked.
Sent from my Nexus 6 using XDA Free mobile app
---------- Post added at 07:56 AM ---------- Previous post was at 07:50 AM ----------
No issues going from Rom to Rom with it unchecked. Issue lies in... No OS so you can't boot up and check oem unlock, stuck at a locked bootloader screen, so you can't flash a custom recover, can't restore because you can't access recovery.
Sent from my Nexus 6 using XDA Free mobile app
Click to expand...
Click to collapse
I do use a usb otg stick and usually wipe the entire phone before each rom to make sure I start fresh. After I wipe everything in twrp i go to reboot back into recovery and it brings up the no os are u sure u want to do this. This wont cause issues even if unchecked correct?

the_rooter said:
I do use a usb otg stick and usually wipe the entire phone before each rom to make sure I start fresh. After I wipe everything in twrp i go to reboot back into recovery and it brings up the no os are u sure u want to do this. This wont cause issues even if unchecked correct?
Click to expand...
Click to collapse
No you won't have any issues doing that. If you want to be safe though you should check oem unlock before you start flashing and wiping. We all know flashing doesn't always go as expected and the last thing you want is to end up stuck. As long as oem unlocked is checked recovering from soft bricks is easy.
Sent from my Nexus 6 using XDA Free mobile app

Konfuzion said:
No you won't have any issues doing that. If you want to be safe though you should check oem unlock before you start flashing and wiping. We all know flashing doesn't always go as expected and the last thing you want is to end up stuck. As long as oem unlocked is checked recovering from soft bricks is easy.
Sent from my Nexus 6 using XDA Free mobile app
Click to expand...
Click to collapse
Like I said after a reboot it goes unchecked so if i check it and then reboot to recovery wouldnt that uncheck it again?

[Q] Bricked Nexus 6

hi everyone,
so i flashed the twrp recovery image and then my phone got stuck in a bootloop. So stupidly I relocked the bootloader and now i can't do nothing. any ideas?

No you NEVER relock the bootloader. (unless everything is fine)
There is another thread here where they were close to a solution but I didn't see the final outcome.
Sorry man. Good luck
Sent from my Google N6 on VZ

fastboot
valapsp said:
hi everyone,
so i flashed the twrp recovery image and then my phone got stuck in a bootloop. So stupidly I relocked the bootloader and now i can't do nothing. any ideas?
Click to expand...
Click to collapse
Boot to boot loader...fastboot OEM unlock confirm unlock..let the spinning android wipe your sdcard..good to go

jamescable said:
Boot to boot loader...fastboot OEM unlock confirm unlock..let the spinning android wipe your sdcard..good to go
Click to expand...
Click to collapse
u cant fastboot oem unlock when the "allow oem unlock" box hasnt been checked.

DebianDog said:
No you NEVER relock the bootloader. (unless everything is fine)
There is another thread here where they were close to a solution but I didn't see the final outcome.
Sorry man. Good luck
Sent from my Google N6 on VZ
Click to expand...
Click to collapse
ya i know. i was drunk!

valapsp said:
ya i know. i was drunk!
Click to expand...
Click to collapse
Did you ever ticked Allow OEM Unlock before re locking?
Check this post.
http://forum.xda-developers.com/nexus-6/general/fix-fix-qhusbbulk-cm12-t3059518/page16
There is a FIX.

sotnasnauj said:
Did you ever ticked Allow OEM Unlock before re locking?
Check this post.
http://forum.xda-developers.com/nexus-6/general/fix-fix-qhusbbulk-cm12-t3059518/page16
There is a FIX.
Click to expand...
Click to collapse
That's not what is being said. He is saying there *may* be a link. But only 2 people have managed to fix it with that thread and 1 of them was actually bricked first, not like this but with a broken bootloader... So actually only 1 person may have fixed it with that thread.

valapsp said:
ya i know. i was drunk!
Click to expand...
Click to collapse
LOL I have been there
Sent from my Google N6 on VZ

[Q] Android M flash

hello guys ) i just wanna ask if its possible to flash android m with nexus root toolkit or no ??

Apparently, yes. https://plus.google.com/113329792100896065459/posts/ZFUJD6Yn4hm

jj14 said:
Apparently, yes. https://plus.google.com/113329792100896065459/posts/ZFUJD6Yn4hm
Click to expand...
Click to collapse
thank you for the fast reply

Yes I followed those steps and flashed it perfectly.

BossJ said:
Yes I followed those steps and flashed it perfectly.
Click to expand...
Click to collapse
yeah same here, everything went more then well.

Should I relock the bootloader after flashing M ?

M5Rahul said:
Should I relock the bootloader after flashing M ?
Click to expand...
Click to collapse
NOOO!!!!
To many folks have encountered an issue that soft-bricked their device afterwards.
You will still receive OTA with an unlocked bootloader.

M5Rahul said:
Should I relock the bootloader after flashing M ?
Click to expand...
Click to collapse
you can relock it (safer) but if you want to flash any new rom later you will loose all your data. cause everytime you flash you need to unlock the bootloader. its up to you

stricker said:
you can relock it (safer) but if you want to flash any new rom later you will loose all your data. cause everytime you flash you need to unlock the bootloader. its up to you
Click to expand...
Click to collapse
Hang on now, lets be clear about the advice that we're giving here.
Yes, a locked bootloader is safer if a thief were to get his hands on your device. However, locking the bootloader has a whole host of other problems linked to it. For example, if you end up in a boot loop with a locked bootloader because something breaks in the rom or kernel, if you have stock recovery, you can never unlock the bootloader again, without sending it for repair.
I would suggest people using experimental ROMs should keep their bootloader unlcoked to avoid this

danarama said:
Hang on now, lets be clear about the advice that we're giving here.
Yes, a locked bootloader is safer if a thief were to get his hands on your device. However, locking the bootloader has a whole host of other problems linked to it. For example, if you end up in a boot loop with a locked bootloader because something breaks in the rom or kernel, if you have stock recovery, you can never unlock the bootloader again, without sending it for repair.
I would suggest people using experimental ROMs should keep their bootloader unlcoked to avoid this
Click to expand...
Click to collapse
If I did lock the boot loader, can it not be unlocked again using NRT ? I'm wondering since this (Android M) is an official release from Google, there should be a way to unlock the Boot loader if someone wants to roll back to lollipop ... Am I wrong in this assumption ?
Sent from my Nexus 6 using Tapatalk

M5Rahul said:
If I did lock the boot loader, can it not be unlocked again using NRT ? I'm wondering since this (Android M) is an official release from Google, there should be a way to unlock the Boot loader if someone wants to roll back to lollipop ... Am I wrong in this assumption ?
Sent from my Nexus 6 using Tapatalk
Click to expand...
Click to collapse
It's a security feature whereby if you do not have "enable OEM unlocking" set in the rom, you cannot unlock the bootloader. If you don't have it set, have stock recovery then have a rom that will not boot, you cannot set that, ergo cannot unlock the bootloader. If you're going to mess with exxperiemental previews, I would suggest not re-locking the bootloader.

danarama said:
It's a security feature whereby if you do not have "enable OEM unlocking" set in the rom, you cannot unlock the bootloader. If you don't have it set, have stock recovery then have a rom that will not boot, you cannot set that, ergo cannot unlock the bootloader. If you're going to mess with exxperiemental previews, I would suggest not re-locking the bootloader.
Click to expand...
Click to collapse
I just checked and the 'OEM unlocking' option is turned on under Dev Options.
So, can I unlock the bootloader and flash back to 5.1.1 ?
Sent from my Nexus 6 using Tapatalk

M5Rahul said:
I just checked and the 'OEM unlocking' option is turned on under Dev Options.
So, can I unlock the bootloader and flash back to 5.1.1 ?
Sent from my Nexus 6 using Tapatalk
Click to expand...
Click to collapse
If you like.

Nexus 6 MRA58N bootloader help (noob here)

Just recently got a nexus 6 and updated it to android M without knowing about the bootloader and stuff.i need help regarding how to unlock the bootloader safely and install custom recovery. thanks in advance
ps- this is my first post

about_99_ninjas said:
Just recently got a nexus 6 and updated it to android M without knowing about the bootloader and stuff.i need help regarding how to unlock the bootloader safely and install custom recovery. thanks in advance
ps- this is my first post
Click to expand...
Click to collapse
via fastboot, while ypu are connected to a computer and are in your bootloader, you type.. fastboot oem unlock. this will unlock your bootloader(and will wipe your whole phone.
and while you are in fastboot and connected to a computer while in your bootloader, type.. fastboot flash recovery recoveryname.img. to flash a recovery.
AND.. welcome to xda

What he said ^^^^^
Or you can use one of the toolkits. Personally, I prefer the method via fastboot. You will learn more by doing it "the old fashioned" way. And yes, welcome to XDA!
Sent from my Nexus 6 using Tapatalk

simms22 said:
via fastboot, while ypu are connected to a computer and are in your bootloader, you type.. fastboot oem unlock. this will unlock your bootloader(and will wipe your whole phone.
and while you are in fastboot and connected to a computer while in your bootloader, type.. fastboot flash recovery recoveryname.img. to flash a recovery.
AND.. welcome to xda
Click to expand...
Click to collapse
One thing to add this, starting with the Nexus 6 and 9 you need to boot into the phone, unlock developer options, and flip the switch on "allow OEM Unlock." Otherwise the oem unlock command in fastboot will fail.

StykerB said:
One thing to add this, starting with the Nexus 6 and 9 you need to boot into the phone, unlock developer options, and flip the switch on "allow OEM Unlock." Otherwise the oem unlock command in fastboot will fail.
Click to expand...
Click to collapse
absolutely right..! and i keep forgetting to add that in.

simms22 said:
via fastboot, while ypu are connected to a computer and are in your bootloader, you type.. fastboot oem unlock. this will unlock your bootloader(and will wipe your whole phone.
and while you are in fastboot and connected to a computer while in your bootloader, type.. fastboot flash recovery recoveryname.img. to flash a recovery.
AND.. welcome to xda
Click to expand...
Click to collapse
so i read somewhere that ineed to install a kernal right after i do the fast boot? and could you help me out with the links? and thanks a lot man

StykerB said:
One thing to add this, starting with the Nexus 6 and 9 you need to boot into the phone, unlock developer options, and flip the switch on "allow OEM Unlock." Otherwise the oem unlock command in fastboot will fail.
Click to expand...
Click to collapse
okay ill try this today and let you guys know XD btw thanks man

http://forum.xda-developers.com/nexus-6/general/repairing-nexus-6-marshmallow-6-0-t3241976

about_99_ninjas said:
so i read somewhere that ineed to install a kernal right after i do the fast boot? and could you help me out with the links?[emoji14] and thanks a lot man
Click to expand...
Click to collapse
No you don't, unless you want to root it too.
Sent from my Nexus 6 running cyosp using Tapatalk

istperson said:
No you don't, unless you want to root it too.
Sent from my Nexus 6 running cyosp using Tapatalk
Click to expand...
Click to collapse
okay. i unlocked the bootloader with fastboot:laugh: so will be rooting it later after my exams.any recommendations for any roms/XD

Thanks alot guys! manged to unlock my bootloader with blowing up my phone:victory: thanks for the support:highfive: was shocked to see such fast response. would love your suggestions on what rom to install chroma looks good enough

about_99_ninjas said:
Thanks alot guys! manged to unlock my bootloader with blowing up my phone:victory: thanks for the support:highfive: was shocked to see such fast response. would love your suggestions on what rom to install chroma looks good enough
Click to expand...
Click to collapse
If you intent to flash a lot of roms keep "OEM unlocking" enabled in developer options!!! If will safe you from being locked out from your google account for 72 hours inn case google finds your login attempts suspicious

about_99_ninjas said:
Thanks alot guys! manged to unlock my bootloader with blowing up my phone:victory: thanks for the support:highfive: was shocked to see such fast response. would love your suggestions on what rom to install [emoji14]chroma looks good enough
Click to expand...
Click to collapse
I haven't found a bad one. Chroma, Cataclysm, Pure Nexus, Xtra smooth, many others. Try different ones to get a feel for what they do. You will discover that each has its own focus and ways of doing things.
Sent from my Nexus 6 using Tapatalk

Droidphilev said:
If you intent to flash a lot of roms keep "OEM unlocking" enabled in developer options!!! If will safe you from being locked out from your google account for 72 hours inn case google finds your login attempts suspicious
Click to expand...
Click to collapse
thanks for the heads up

wtherrell said:
I haven't found a bad one. Chroma, Cataclysm, Pure Nexus, Xtra smooth, many others. Try different ones to get a feel for what they do. You will discover that each has its own focus and ways of doing things.
Sent from my Nexus 6 using Tapatalk
Click to expand...
Click to collapse
okay thanks man

jbrantley130 said:
What he said ^^^^^
Or you can use one of the toolkits. Personally, I prefer the method via fastboot. You will learn more by doing it "the old fashioned" way. And yes, welcome to XDA!
Sent from my Nexus 6 using Tapatalk
Click to expand...
Click to collapse
Look at you! Professional already.. Come help me get rid of some repo bugs
Sent from my Nexus 6 using Tapatalk

Oem unlock issue

I have SAMSUNG j600f I wanted to root my device but boot loader is locked so I had to wait for a week. Then I got oem unlock option is developer mode but as I enable it says your device will erase all data and I continue after erase everything boot on again and there is no oem available again I mean it disappeared again. Plz tell me what should I do will I have to wait again for 7 days?
Sent from my [device_name] using XDA-Developers Legacy app

Aymaan147147 said:
I have SAMSUNG j600f I wanted to root my device but boot loader is locked so I had to wait for a week. Then I got oem unlock option is developer mode but as I enable it says your device will erase all data and I continue after erase everything boot on again and there is no oem available again I mean it disappeared again. Plz tell me what should I do will I have to wait again for 7 days?
Click to expand...
Click to collapse
Some ROMs hide the OEM setting once the bootloader is unlocked, because this setting is now meaningless. If you were to relock your bootloader (not recommended unless you revert entirely to stock, system and recovery), you'd see the option again.
Edit: this should have been posted to your device's q&a thread instead of here.

Fif_ said:
Some ROMs hide the OEM setting once the bootloader is unlocked, because this setting is now meaningless. If you were to relock your bootloader (not recommended unless you revert entirely to stock, system and recovery), you'd see the option again.
Edit: this should have been posted to your device's q&a thread instead of here.
Click to expand...
Click to collapse
I'm not sure that i have unlocked the bootloader but will that option come back if yes so will i have to wait more 7 days?
Sent from my [device_name] using XDA-Developers Legacy app

Aymaan147147 said:
I'm not sure that i have unlocked the bootloader but will that option come back if yes so will i have to wait more 7 days?
Click to expand...
Click to collapse
I have no idea. I'd never buy a device that I cannot boot unlock or that makes me to through hoops to unlock.