Deear All,
I just bought my z2 force (t-mobile) from internet. It is an unlocked version and i can use it with my own sim card. However, i found that it cannot update via OTA as the bootloader is unlocked. I have heard that after i re-flash the firmware, the bootloader will be relocked. I am wondering, will the flashing re-activate the carrier lock?
Also, is it correct that after I flash via Lenovo Moto Smart Assistant. the bootloader will be locked again?
Is there other method to allow the phone to get OTA again?
Thanks a lot for your help.
hkguy80 said:
Deear All,
I just bought my z2 force (t-mobile) from internet. It is an unlocked version and i can use it with my own sim card. However, i found that it cannot update via OTA as the bootloader is unlocked. I have heard that after i re-flash the firmware, the bootloader will be relocked. I am wondering, will the flashing re-activate the carrier lock?
Also, is it correct that after I flash via Lenovo Moto Smart Assistant. the bootloader will be locked again?
Is there other method to allow the phone to get OTA again?
Thanks a lot for your help.
Click to expand...
Click to collapse
Unlocked bootloder won't stop an ota, but a custom logo.bin will. Chances are that the seller has also flashed a logo. When you boot you should see a warning about your bootloader being unlocked, if you don't and you just see a moto logo (or any stationary image really) then you have a custom logo which will fail otas. The easiest way to remedy this is to follow Uzephi's "How to Return to Stock' thread. Then you should get otas again. It is advised never to relock your bootloader. A good example of why would be that you have a custom logo, you relock, your phone fails to boot and you can't flash anything because you locked it. There is no real valid reason to relock your phone. As for losing carrier unlock, you shouldn't, those are usually permanent. Unless it was some hack which I doubt since I believe that is only for Spring variants. Just follow Uzephi's guide and you should be back to good.
41rw4lk said:
Unlocked bootloder won't stop an ota, but a custom logo.bin will. Chances are that the seller has also flashed a logo. When you boot you should see a warning about your bootloader being unlocked, if you don't and you just see a moto logo (or any stationary image really) then you have a custom logo which will fail otas. The easiest way to remedy this is to follow Uzephi's "How to Return to Stock' thread. Then you should get otas again. It is advised never to relock your bootloader. A good example of why would be that you have a custom logo, you relock, your phone fails to boot and you can't flash anything because you locked it. There is no real valid reason to relock your phone. As for losing carrier unlock, you shouldn't, those are usually permanent. Unless it was some hack which I doubt since I believe that is only for Spring variants. Just follow Uzephi's guide and you should be back to good.
Click to expand...
Click to collapse
Thanks a lot for your help. I will follow Uzephi's to reflash my phone. :good::good::good:
Related
Googling and searching this website have yielded nothing useful so I figured I'd ask:
Has anyone yet been able to unlock the bootloader on the sm-t807a (the AT&T model of the 805)?
Thanks in advance. I'm just itching debloat this sucker and see what it can really do.
Not yet.
Okay; further query. Does the locked bootloader just mean I'll trip knox if I flash a custom ROM or otherwise acquire root or is it more insidious than that? Because I'll trade my warranty for root any day of the week. Is there absolutely nothing I can do? I can live with just root and not being able to use a custom ROM but I don't know how long I can run this thing without xposed before I lose my mind.
Locked bootloader means nothing will flash unless it stock and signed. There's chance of a brick and/ or end up with Knox tripped just for the he'll of of it.
Has anyone gained any ground on the T-807A as far as unlocking the bootloader. All I can get into is Odin Mode. Is there a fastboot mode? I have two tablets that are locked up and unbootable because of unapproved software. (TWRPn recovery on both occasions)
Geraldleach2 said:
Has anyone gained any ground on the T-807A as far as unlocking the bootloader. All I can get into is Odin Mode. Is there a fastboot mode? I have two tablets that are locked up and unbootable because of unapproved software. (TWRPn recovery on both occasions)
Click to expand...
Click to collapse
Just flash the stock firmware with odin.
Hello guys, sorry because may be this is the 50th time someone ask this question but the situation change every day. Yesterday I won from lottery and decide to go from G3 to G4. My model is European H815, I want to ask you can I root G4, change the recovery and e.t.c. without unlocking the bootloader? And also if I unlocked it is their any way to locked it again or to use my warranty? Thank you!!
well you can only root using low effort root(google it or find it here ) But to change recovery you have to unlock bootloader
No there is no way confirmed to relock your bootloader
GOOD LUCK
Thank you! If I root by this way and download Flashify and try to change recover what will happen ? Thank you!
without bootloader unlocked nothing will chnage ( recovery wont be installed ) and when you reboot your phone it will get u error (authentication error #9) as i remember and you will have to flash new firmware using lg flash tool 2014 so i dont recommend you do so
if u wanna change recovery unlock ur bootloader
you are welcome anytime
I did not get it, I hope you can light me up:
1. Doing root using low effort root means rooting without unlocking bootloader? (because I flew over the thread and did not read anything about it)
2. If I do unlock Marshmallow's bootloader, what happens when I downgrade to Lollipop via flashing proper KDZ? (I would guess that the unlocked bootlader will be overwritten!? So flashing Marshmallow again would end up in a locked bootloader, doesn't it?)
thanks
You can root lollipop without unlocking bootloader but with marshmalow you can't, you have to unlock the bootloader.
You need an unlocked bootloader for custom recovery.
Bootloader unlocking is a one way operation , you can't go back.
I unlocked my bootloader several months ago, but now my SIM card readers (both of them) have gone out. I have no idea how, no water damage or anything like that has happened. They just stopped working. So I went complete stock firmware, locked bootloader, everything but I am still unable to take OTA updates like a new phone would be able to. I think this is because they banned my device from OTAs which I believe they do if you have messed with the device. I need to RMA my device so my question is would it be better to say that I didn't tamper with the device and run the risk of them finding out I did, which is pretty likely seeing as how my device has been banned from OTA updates, or tell them that I did unlock it and all of that but that I have relocked it and I am back to stock? If any of you have had a similar issue how did ASUS handle that? Thanks!
E3AANG11E3 said:
I unlocked my bootloader several months ago, but now my SIM card readers (both of them) have gone out. I have no idea how, no water damage or anything like that has happened. They just stopped working. So I went complete stock firmware, locked bootloader, and all of that but that I have relocked it.
Click to expand...
Click to collapse
How to you relock bootloader?
mr_gourav2000 said:
How to you relock bootloader?
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Click to collapse
Since I am a new user I cannot post links. But Google "Zenfone 2 bootloader unlock" and I followed the instructions of Grekky's Blog.
there is no such thing as relocking the bootloader. only thing you can do it flash the stock image to make it look stock (since an unlocked bootloader has a white splash screen) but im sure asus knows of this and will still check and see that the bootloader is indeed unlocked and not warranty it.
This is just something we all accepted as a consequence of unlocking our bootloaders. hell i have a screen thats getting worse and worse with a yellow/brownish line coming from the top of the phone, but alas i have an unlocked phone too.
You can replace the white splash screen by flashing a black splash screen image to try and cover up unlocking your bootloader. http://forum.xda-developers.com/zenfone2/themes-apps/551-black-white-splashscreen-twrp-flash-t3141945 . If the reseller has no clue about custom recoveries and trying to flash a rom you'll be safe.
They fixed it, no questions asked. And yes, I was able to relock the bootloader.
Just got my pixel xl today, unlocked immediately. Question is if i update the bootloader from the factory images, am i going to lose my unlock or will this stick until i manually lock it (which i won't )? Thanks!
It will stick, no problem. Update away.
So just to clairfy because i'm paranoid about these things, I can run the flash-all script for the Feb update and my bootloader will remain unlocked correct?
danielson2047 said:
So just to clairfy because i'm paranoid about these things, I can run the flash-all script for the Feb update and my bootloader will remain unlocked correct?
Click to expand...
Click to collapse
Correct. Your bootloader will remain unlocked, unless you execute the following command: fastboot oem lock
With the Verizon bootloader, I used Depixel8 how do I work with the boot slots? I have been modifying since the LG ally but the table has changed and I don't want to end with a brick. Could I flash the bootloader to two slots?
Safest thing to do is to dePixel8 right off the bat, and then take an OTA before you do anything else. The OTA installs on the other slot, guaranteeing that you have a bootloader on both slots before you start monkeying around.
JU57US said:
Safest thing to do is to dePixel8 right off the bat, and then take an OTA before you do anything else. The OTA installs on the other slot, guaranteeing that you have a bootloader on both slots before you start monkeying around.
Click to expand...
Click to collapse
my phone came stock with NMF26U, is a verizon model, anyway to downgrade and unlock the bootloader?
palvarez05 said:
my phone came stock with NMF26U, is a verizon model, anyway to downgrade and unlock the bootloader?
Click to expand...
Click to collapse
No, unfortunately not.
I don't know if this is the right thread but here's my question...I have a pixel XL from Verizon with unlocked bootloader, not rooted (yet). If I were to factory reset it, will the bootloader be relocked? I don't want to take the chance since I already took the latest OTA. And now that I'm asking questions can someone point me to the right place for step by step guide to root? I don't have much knowledge but I can follow directions...Lol. any help will be greatly appreciated.
Falargi said:
I don't know if this is the right thread but here's my question...I have a pixel XL from Verizon with unlocked bootloader, not rooted (yet). If I were to factory reset it, will the bootloader be relocked? I don't want to take the chance since I already took the latest OTA. And now that I'm asking questions can someone point me to the right place for step by step guide to root? I don't have much knowledge but I can follow directions...Lol. any help will be greatly appreciated.
Click to expand...
Click to collapse
No it wont relock at all. ONly way for it to relock is to run the command for lock through download mode.
Falargi said:
I don't know if this is the right thread but here's my question...I have a pixel XL from Verizon with unlocked bootloader, not rooted (yet). If I were to factory reset it, will the bootloader be relocked? I don't want to take the chance since I already took the latest OTA. And now that I'm asking questions can someone point me to the right place for step by step guide to root? I don't have much knowledge but I can follow directions...Lol. any help will be greatly appreciated.
Click to expand...
Click to collapse
Follow this guide, it's in the guides section
https://forum.xda-developers.com/pixel-xl/how-to/guide-how-to-unlock-root-flash-pixel-xl-t3507886
The only way to relock your bootloader is if you type "fastboot flashing OEM lock" once you have unlocked it, never never never relock it (VZW models only) only lock it if you need to do a RMA. Once unlocked you can flash whatever factory image your heart desires.
palvarez05 said:
my phone came stock with NMF26U, is a verizon model, anyway to downgrade and unlock the bootloader?
Click to expand...
Click to collapse
Are you positive that it had had to build out of the box? Or did it simply get upgraded before you checked? Either way you cannot now unlock the bootloader, but it is worthwhile to note whether or not Verizon is updating the phones before boxing them and shipping them. Check the side of your box your phone came in, to see the original build number that the phone had on it when it was boxed up.
Is it possible to relock bootloader without wiping data? All my previous devices didn't require wipe, but I received such strange warning when tried to relock bootloader on Z2 Force Sprint
mapki said:
Is it possible to relock bootloader without wiping data? All my previous devices didn't require wipe, but I received such strange warning when tried to relock bootloader on Z2 Force Sprint
Click to expand...
Click to collapse
I believe you're not able to relock the bootloader until Motorola release a signed bootloader. I had the page once before I'll see if I can find it again and add an edit if I do.
mapki said:
Is it possible to relock bootloader without wiping data? All my previous devices didn't require wipe, but I received such strange warning when tried to relock bootloader on Z2 Force Sprint
Click to expand...
Click to collapse
Don't relock your bootloader unless you want a brick. Technically you can relock it, but everything has to be legit. You've already voided the warranty, relocking won't reinstate that, all that will happen is you'll be bricked with nothing to do about it because you've locked the bootloader.
Why do you want to relock it?
I would like to relock my bootloader and wondering the accuracy of this last post. Will relocking my Sprint Z2 Force bootloader brick my device?
I'm running completely stock via OTA 8.0.0 no root. The reason I want to relock my bootloader is bringing my phone to out of box status and pass SafetyNet. I don't want to root to get this done and I want to continue receiving OTA's.
I understand that my warranty is void when I unlocked bootloader originally and I understand relocking my bootloader will wipe data (factory reset).
Will this brick my phone?
Can I relock anymore?
What are the fastboot commands to relock the Z2?
Thanks!
jeffritz1 said:
I would like to relock my bootloader and wondering the accuracy of this last post. Will relocking my Sprint Z2 Force bootloader brick my device?
I'm running completely stock via OTA 8.0.0 no root. The reason I want to relock my bootloader is bringing my phone to out of box status and pass SafetyNet. I don't want to root to get this done and I want to continue receiving OTA's.
I understand that my warranty is void when I unlocked bootloader originally and I understand relocking my bootloader will wipe data (factory reset).
Will this brick my phone?
Can I relock anymore?
What are the fastboot commands to relock the Z2?
Thanks!
Click to expand...
Click to collapse
I would suggest flashing one of the flash alls for sprint before doing it to ensure being fully stock. The command is below. Also i f you ever have any issues and want to reunlock, you always can with your original unlock code.
"fastboot oem lock"
You'll get a "are you sure" message. Type in the command again and poof, relocked status.
Uzephi said:
I would suggest flashing one of the flash alls for sprint before doing it to ensure being fully stock. The command is below. Also i f you ever have any issues and want to reunlock, you always can with your original unlock code.
"fastboot oem lock"
You'll get a "are you sure" message. Type in the command again and poof, relocked status.
Click to expand...
Click to collapse
So, I did a "fastboot oem lock" and it re locked the bootloader. Restart bootloader, shows locked. Restart phone and still getting a splash screen similar to the one when your unlocked but this time it says "Device has loaded a different Operating System". Continues to boot normally into the system without issues. This was odd so I unlocked again did a Flashall w/ "XT1789-03_NASH_SPRINT_8.0.0_OCXS27.109-48-6_subsidy-DEFAULT_regulatory-DEFAULT_CFC.xml.zip" and "fastboot oem lock". Both times said the lock was successful. But I'm still getting this boot splash screen with test reading "Device has loaded a different Operating System". System boots but still fails SafetyNet.
What gives? What am I missing?
From what I can muster up on XDA I can see that "you need a signed boot.img". Does this mean something and how can I find this?
Can anyone who has unlocked and then relocked their bootloader report on the behavior of your phone? Do you get the same "different OS" splash screen? Has anyone been successful at making it go away and passing safetynet?
jeffritz1 said:
Can anyone who has unlocked and then relocked their bootloader report on the behavior of your phone? Do you get the same "different OS" splash screen? Has anyone been successful at making it go away and passing safetynet?
Click to expand...
Click to collapse
I've been working on this all morning trying a couple different methods. But none have been successful. But the best I can figure, when in bootloader, there is a message stating that your system is "Modified". Somehow, that needs to get changed to what I can only speculate as "unmodified", or something alike.
I tried 3 different versions of returning to stock
First one I tired I cannot seemed to find now
Secondly, I tired:
https://forum.xda-developers.com/z2-force/how-to/how-to-return-to-stock-sprint-t3694783
Posted by Uzephi
I added the command "fastboot oem lock" 2 times just above the fastboot reboot command; thus locking bootloader.
But upon reboot, I still get the modified OS message.
Lastly, I tried this method
https://forum.xda-developers.com/showpost.php?p=76850077&postcount=6
I downloaded https://mirrors.lolinet.com/firmware/moto/nash/official/TMO/XT1789-04_NASH_TMO_C_8.0.0_OCX27.109-36_subsidy-TMO_regulatory-DEFAULT_CFC.xml.zip
Followed the instructions (to some degree) and modified them for Linux since I am not a windows user.
After reboot, radio did not work. No WiFi, not data, nothing. Developer options was already enabled, but oem bootloader unlocking option was grayed out. Now I cannot unlock my bootloader and flash an updated OS.
Thanks for the reply! As of now I am stock latest Sprint 8.0.0 July update with bootloader locked. I get the "Your device has loaded a different Operating System" splash screen when I boot up with a "ID:" followed by nothing. I don't know what this "ID:" with nothing following this means. Also when I run a SafetyNet status app is says failed. But, everything else in the OS appears to be working. Google Play shows "Certified" status and all my apps that require SafetyNet is working (Banking apps, Netflix, Hulu, Google Pay, etc...). So I accomplished my mission in getting these apps working and everything else appears stock. The only thing that troubles me is this "Your device has loaded a different Operating System" splash screen and the failed status in the SafetyNet app. Would love to know how to fix this or an explanation on why.
jeffritz1 said:
Thanks for the reply! As of now I am stock latest Sprint 8.0.0 July update with bootloader locked. I get the "Your device has loaded a different Operating System" splash screen when I boot up with a "ID:" followed by nothing. I don't know what this "ID:" with nothing following this means. Also when I run a SafetyNet status app is says failed. But, everything else in the OS appears to be working. Google Play shows "Certified" status and all my apps that require SafetyNet is working (Banking apps, Netflix, Hulu, Google Pay, etc...). So I accomplished my mission in getting these apps working and everything else appears stock. The only thing that troubles me is this "Your device has loaded a different Operating System" splash screen and the failed status in the SafetyNet app. Would love to know how to fix this or an explanation on why.
Click to expand...
Click to collapse
That message appear because you've unlocked your bootloader before, I'm getting that message too and I can update my device via OTA. If you change that splash screen OTAs will fail.
Marcowe said:
That message appear because you've unlocked your bootloader before, I'm getting that message too and I can update my device via OTA. If you change that splash screen OTAs will fail.
Click to expand...
Click to collapse
Yeah, I was trying to find out if the phone could be reverted back to an out of back state. Another words, no splash screen saying "HEY! I HAVE BEEN MESSED WITH!" like you can on any other phone I have ever owned.
Thanks!
Yes you can
thomas.raines said:
I've been working on this all morning trying a couple different methods. But none have been successful. But the best I can figure, when in bootloader, there is a message stating that your system is "Modified". Somehow, that needs to get changed to what I can only speculate as "unmodified", or something alike.
I tried 3 different versions of returning to stock
First one I tired I cannot seemed to find now
Secondly, I tired:
https://forum.xda-developers.com/z2-force/how-to/how-to-return-to-stock-sprint-t3694783
Posted by Uzephi
I added the command "fastboot oem lock" 2 times just above the fastboot reboot command; thus locking bootloader.
But upon reboot, I still get the modified OS message.
Lastly, I tried this method
https://forum.xda-developers.com/showpost.php?p=76850077&postcount=6
I downloaded https://mirrors.lolinet.com/firmware/moto/nash/official/TMO/XT1789-04_NASH_TMO_C_8.0.0_OCX27.109-36_subsidy-TMO_regulatory-DEFAULT_CFC.xml.zip
Followed the instructions (to some degree) and modified them for Linux since I am not a windows user.
After reboot, radio did not work. No WiFi, not data, nothing. Developer options was already enabled, but oem bootloader unlocking option was grayed out. Now I cannot unlock my bootloader and flash an updated OS.
Click to expand...
Click to collapse
Yes you can , I already had this issue with my moto z2 force in Morocco , so what I did is I connected the phone to internet via bluetooth and when I added my google accounte the unlocking oem in dev option was normal , so I was able to flash roms again . Hope this will help you
I think there is no way to relock bootloader without wipe the device. Also you can relock the bootloader and you will not have any problems. I've already done it, at least with my sprint moto z2 force. the message there is no way to remove it, only flashing a logo.bin, "the boot splash" or replacing the logo.bin of the flash all package by the one of your preference.
EddiePR said:
I think there is no way to relock bootloader without wipe the device. Also you can relock the bootloader and you will not have any problems. I've already done it, at least with my sprint moto z2 force. the message there is no way to remove it, only flashing a logo.bin, "the boot splash" or replacing the logo.bin of the flash all package by the one of your preference.
Click to expand...
Click to collapse
If you do that OTAs will fail
Marcowe said:
If you do that OTAs will fail
Click to expand...
Click to collapse
Yes, you are rigth
So, which of the methods to re-lock did finally work? I was running on Android 8 before, OTA failes for at least 10 times, but suddenly it worked to upgrade to Android 9. Now I am weirdly not passing SafetyNet-check anymore (was working fine on Android 8, GooglePay etc).
Any recommendations? I just need the stupid GPay thing working