Hi, phone from my friend is in a bootloop, stuck on google logo. Phone is in the service now but I have a question, I was searching different guides for a fix and they all require unlocked bootloader but phone is locked and you need to Enable OEM Unlock in developer settings which is not possible atm.
But my question is this, why does nexus 5x requires unlocked bootloader if I want to reflash factory image ? Isn't locked bootloader only if you want to flash custom software, did I miss something with nexus 5x ? I am using Oneplus One so i am not sure what's the thing with nexus. I found basic guide to reflash factory image and in one of the steps it says bootloader needs to be unlocked.
Because the factory image cannot fix the problem. You will need a custom kernel which disable the big cores.
In order to unlock bootloader, you can heat up your phone (using a hairdrier) to boot temporarily. Google with "nexus 5x bootloop hair dryer".
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Ok so i have read many posts on XDA about bricked nexus 5x's and many others, sometimes the main probelm is the oem isnt unlocked. I myself have a Nexus 5x that is completely stock no custom recovery no root no nothing, i just update the phone, right now on Nougat 7.0 sep security update.
So my question is, should i check the OEM unlocking in the settings ? i will never install any recovery or root but i think by reading the posts, it seems like its a major problem if this is not checked, should i check it just to be safe ?
U_Midrar said:
Ok so i have read many posts on XDA about bricked nexus 5x's and many others, sometimes the main probelm is the oem isnt unlocked. I myself have a Nexus 5x that is completely stock no custom recovery no root no nothing, i just update the phone, right now on Nougat 7.0 sep security update.
So my question is, should i check the OEM unlocking in the settings ? i will never install any recovery or root but i think by reading the posts, it seems like its a major problem if this is not checked, should i check it just to be safe ?
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If you have issues in your current state they will most likely be hardware related and unfixable via software. But even locked you can completely reinstall the OS via sideloading an OTA or using the TOT method.
Enabling OEM unlock disables Factory Reset Protection (FRP). FRP is a security feature that prevents a stolen device from being activated. There is allot of info about it online if you wish to learn more.
So you need to decide if you want FRP or the ability to flash the factory images.
Sent from my XT1650 using Tapatalk
PiousInquisitor said:
If you have issues in your current state they will most likely be hardware related and unfixable via software. But even locked you can completely reinstall the OS via sideloading an OTA or using the TOT method.
Enabling OEM unlock disables Factory Reset Protection (FRP). FRP is a security feature that prevents a stolen device from being activated. There is allot of info about it online if you wish to learn more.
So you need to decide if you want FRP or the ability to flash the factory images.
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ok thx dude for the reply, nah i dont care about the FRP. so flashing factory images is easier right ? rather than sideloading or whatever this TOT method is...., and do most mobiles have a oem locked or unlocked ?
U_Midrar said:
ok thx dude for the reply, nah i dont care about the FRP. so flashing factory images is easier right ? rather than sideloading or whatever this TOT method is...., and do most mobiles have a oem locked or unlocked ?
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Sure, flashing the factory images is probably slightly easier than the other methods. Note that in your case you would need to actually unlock the bootloader to flash the images. With those added steps it's probably faster to sideload.
The Allow OEM unlock toggle has been around since LP I think. An pretty sure it's in phones that shipped with LP. It didn't automagically mean that the phones bootloader can be unlocked though. It should stop disable FRP though.
Sent from my XT1650 using Tapatalk
Yes, most, I think all OEMs leave the possibility to unlock the bootloader.
By default the bootloader is locked on most OEMs (Sony, Samsung, HTC, Motorola, even Nexus devices).
For Nexus devices it's a simple one liner to unlock/lock the bootloader which will also trigger a data wipe but. On Nexus devices it doesn't void your warranty.
For most other OEMs phones you have to follow some steps and usually get some kind of code in order to unlock the bootloader the first time. This will void your warranty!
If you don't know whether or not you should unlock/lock the bootloader, the answer is: NO!
It seems you're not modifying your phones software (Custom Kernel, Custom Rom, Root etc) and you seem to have no intention doing so. So it's not needed and even less "secure" than with locked bootloader. If you do, you should know that you have to unlock the bootloader in order to change the phones software.
Why would you want to unlock the bootloader when the only reason to do so is to modify the software and you do not plan to do this?
On a stock nexus there is no need to unlock the bootloader, you can even reflash your phone with locked bootloader with the stock software image.
creambyemute said:
Yes, most, I think all OEMs leave the possibility to unlock the bootloader.
By default the bootloader is locked on most OEMs (Sony, Samsung, HTC, Motorola, even Nexus devices).
For Nexus devices it's a simple one liner to unlock/lock the bootloader which will also trigger a data wipe but. On Nexus devices it doesn't void your warranty.
For most other OEMs phones you have to follow some steps and usually get some kind of code in order to unlock the bootloader the first time. This will void your warranty!
If you don't know whether or not you should unlock/lock the bootloader, the answer is: NO!
It seems you're not modifying your phones software (Custom Kernel, Custom Rom, Root etc) and you seem to have no intention doing so. So it's not needed and even less "secure" than with locked bootloader. If you do, you should know that you have to unlock the bootloader in order to change the phones software.
Why would you want to unlock the bootloader when the only reason to do so is to modify the software and you do not plan to do this?
On a stock nexus there is no need to unlock the bootloader, you can even reflash your phone with locked bootloader with the stock software image.
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yo dude thx for the reply, as i said in my first post, i saw some bricked nexus 5x (they didnt mod anything i think) that couldnt be repaired cause he had the option unchecked about OEM, that is why i was asking for like a safety precaution that if something goes wrong it would be okay cause oem could be unlocked then... what do u say now ? (and yea im not gonna ever mod anything in the phone, learned fom my last phone which i somehow bricked and a man fixed it for for 5$ )
U_Midrar said:
yo dude thx for the reply, as i said in my first post, i saw some bricked nexus 5x (they didnt mod anything i think) that couldnt be repaired cause he had the option unchecked about OEM, that is why i was asking for like a safety precaution that if something goes wrong it would be okay cause oem could be unlocked then... what do u say now ? (and yea im not gonna ever mod anything in the phone, learned fom my last phone which i somehow bricked and a man fixed it for for 5$ )
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That catch is if if you checked OEM unloking and chose to not perform oem unlock command now.
When something did went wrong afterward, you are able to perform oem unlock but it will wipe your data.
There is no point for doing it.
HebeGuess said:
That catch is if if you checked OEM unloking and chose to not perform oem unlock command now.
When something did went wrong afterward, you are able to perform oem unlock but it will wipe your data.
There is no point for doing it.
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so i shouldnt do it like just leave it be ?
F IT I DID IT
i just read this site and also got to know a bootloop can occur with OTA update so yea i have done it.
Site: http://android.wonderhowto.com/news...ting-before-modding-anything-android-0167840/
I had a Nexus 5X with stock Android 6 software. Android Pay was working fine.
I was having a few lag issues and noticed the final Nexus factory image was available for Android 7 so I decided to unlock my bootloader and install the factory image. After I installed it, Android Pay was still working fine.
Then I received an OTA update for the monthly security hotfixes which I installed. Since doing this, Android Pay doesn't work. It says something about my phone being rooted/unlocked and that Android Pay does not support this.
Can anyone tell me why this is happening? I don't need to keep my bootloader unlocked so if locking will allow me to resolve the issue without losing data then I can do this. Can anyone guide me please?
Try flashing a kernel from The Flash or Franco.
Both have a line of code that should stop the bootloader error in safetynet
Thank you but I don't want to put on any custom stuff. I just want to go back to a stock Android 7.0 ROM that works with Android Pay. I don't need root, or an unlocked bootloader. How can I go back to stock?
You can use something like wugs nexus tool.
Although some have mentioned you can brick your device trying to lock the bootloader.
Personally I have never done it. Others might have more experience.
It may or may not be easier to lock than to use a custom kernel. YMMV.
One benefit of the kernel is increased performance on your phone.
Oh and if you lock your bootloader it will completely wipe your phone. E.g. You will lose your data.
Edit.. Root isn't needed for a kernel either
Start the device in fastboot mode again, as described above.
Execute:
fastboot flashing lock
or, for older devices, run:
fastboot oem lock
Locking bootloader will wipe the data on some devices. After locking the bootloader, if you want to flash the device again, you must run fastboot oem unlock again, which will wipe the data.
Source: https://developers.google.com/android/nexus/images
Ah okay, thanks for the info. What I should have done originally was re-lock the bootloader straight after I flashed the ROM. Unfortunately, I setup the device after flashing the ROM and kept the bootloader unlocked which is why I'm stuck right now. Okay, time to backup my stuff up and re-lock the bootloader. Thanks everyone.
I purchase a 1+3 a week ago. I have everything setup has i wanne but my concern if the phone goes into bootloop or something goes wrong. Would u think im ok woth a locm bootloader or unlock bootloader is a must
Unlocking bootloader is only necessary if you want/need root and other modifications. If you're satisfied with the phone in its current state and only plan to use official ROMs, you don't need to unlock it.
Bootloops an similar issues are very rare on unmodified devices, no need to worry about this.
Besides, you can always factory reset or sideload stock ROM even with locked bootloader and stock recovery.
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Hello guys am basically a Noob when it comes to the new android 6.0+ security system that google included which changed the bootloader unlocking and rooting process a lil bit from the standert ( fastboot oem unlock ... fastboot flash twrp ... flash super su and voila )
let's get to my probleme with my nexus 5x when i unlocked the bootloader with the tool the device has to reboot but everytime i reboot i have to unlock my bootloader again the root works fine but the bootloader keeps getting locked everytime ... problem is that i messed with the boot img in order to disable forced encryption and now i can't flash stock because during the flashing the bootloader has to reboot and gets locked which make the flashing fails ... am on android nougat 7.0 if that matter and if someone have the 6.0.1 (mtc20k) boot image for noforce encrypte please share with me and thanks
You can update manually by flashing the different parts separately using fastboot commands. That way you can skip rebooting after flashing bootloadet
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I have the same problem. Bootloader gets relocked every time i reboot. Could not install cm14.1, i just get i bootloop (tried with latest twrp and vendor). Went back to stock with the seperate fastboot commands. It works but really annoying that the bootloader wont stay locked. It worked before i sent the phone to service (emmc problem) and got the motherboard changed. Is there a problem with the bootloader or is it a hardware problem?
Sounds like a HW problem, RMA it again.
RusherDude said:
Sounds like a HW problem, RMA it again.
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Thanks!
Yeah thats what im thinking too. But what do i claim as the issue? Is a non unlockable bootloader a warranty issue? Bought it unlocked from a store.
frukten said:
Thanks!
Yeah thats what im thinking too. But what do i claim as the issue? Is a non unlockable bootloader a warranty issue? Bought it unlocked from a store.
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Ask Google (you can open up a chat with them for example on https://support.google.com/nexus/answer/4582729?hl=en&ref_topic=6023296#contact=1 or other links), for me it's a clear issue, you have the right to unlock the bootloader, however not sure how to demonstrate a problem if you bought it on a store...
All phones that come back from service do so in that state. Seems it's a decision from LG. If you go to bootloader you'll probably see that is says "no rpmb" right after secure boot. This is what is causing the issue, from what I know it is because a certain portion is not flashed on the motherboard replacement
The same happend to me, e-mailed the service center asking why they did this but they never reply
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Hello,
I'm in a rather peculiar situation. I bought a Nexus 5X from eBay recently (I know) which was advertised as having the common bootloop issue, of which I saw there seems to be a fix for. After receiving the phone I found that not only does it bootloop, but the bootloader is still locked and the previous owner has set up the phone and used a PIN lock on the lockscreen, leaving me unable to get into the settings to enable Developer settings and unlock the bootloader. Does anyone know of any kind of fix for this? Just to reiterate, I cannot flash any stock rom, and there is no custom recovery on the device. I am not new to unlocking bootloaders and flashing custom firmware, and I have contacted the previous owner to no avail. Any help in this issue would be greatly appreciated.
I have searched the forums but as my situation is compounded of multiple problems (locked BL, no custom recovery and PIN lock) I feel like I have hit a dead end.
I am with ya
I have the exact situation i would love to know if you have figured it out. i have two of them as a package deal from ebay. Both 5x.
advertised as bootloop. wont go past the google screen.. one them i actually got to fire up but then ran into the pin thing...
Can you get in fastboot mode ? If so, you can try flashing a custom recovery