Locking the bootloader after flashing a firmware - Samsung Galaxy A70 Questions & Answers

Can I lock the bootloader again after flashing an update or does it completely brick it? Theirs no root installed because it just bricked my phone when I tried. Netflix no longer works and it's handy to have on the go. Thank-you!

you can lock the bootloader, it wont brick your phone but it will do a factory reset. and also you will be able to use netflix. But if you tripped knox, you will never be able to use samsung health, samsung pass apps (maybe more samsungs apps, I am not sure).
to lock it, enter the screen which comes before install mode, then long press volume up till the screen turns black.
then lock it.
after the factory reset is done, enter the developer options and re-lock oem.

y.erenbektas said:
you can lock the bootloader, it wont brick your phone but it will do a factory reset. and also you will be able to use netflix. But if you tripped knox, you will never be able to use samsung health, samsung pass apps (maybe more samsungs apps, I am not sure).
to lock it, enter the screen which comes before install mode, then long press volume up till the screen turns black.
then lock it.
after the factory reset is done, enter the developer options and re-lock oem.
Click to expand...
Click to collapse
Managed to root my phone now just kept reflashing it til it passed, strange, any ideas how to allow netflix to work? Managed to hide my online banking from seeing the root but I can't get netflix to work. I can't even see netflix on the app store either.

Snow Cat123 said:
Managed to root my phone now just kept reflashing it til it passed, strange, any ideas how to allow netflix to work? Managed to hide my online banking from seeing the root but I can't get netflix to work. I can't even see netflix on the app store either.
Click to expand...
Click to collapse
I am not sure how to do that specially for Netflix. All I can do will be researching, as you can do too. So I think you should open a new thread about netflix. Sorry :/

Related

Bootloop

The phone is stuck in the bootloop. It has original firmware (Lolipop) and the bootloader is locked.
So when the phone turns on it is kept alive for about 30-40 second and than it's starting to reboot. I have tried to turn on developers options in that time(and succeeded) but on the next boot developers options are turned of. Also I have tried to uninstall some random app (also succeeded) and also the app is here on the next boot.
Also tried to factory reset the phone ... nothing happens.
Also tried to uninstall apps or turn on developers options from Safe mode.
Any other ideas. (My plan was to flash custom ROM but I cant even unlock bootloader )
It's my fathers phone...it is end of the year and he is MAD AS HELL
Managed to unlock bootloader.
Does anyone know where is option to turn of fastboot on Lolipop. (on Kitkat it was under Power-Fast boot) ?

Nexus 5X stuck at Google Screen. Won't boot stock recovery.

I was just using my phone like normal today opening up the transit app at the bus stop and it randomly froze and restarted. After that, it only shows the initial Google screen and just keeps bootlooping, but never even gets to the part where the OS is loading (with the google animation). It was just on stock 6.0.1, MTC20K I think. Was not rooted. Bootloader was/is unlocked. Secure boot was/is enabled. It won't even go into stock recovery (when I select recovery it immediately goes back to the Google screen and continues as if I had never selected recovery). I have tried manually flashing each piece of the latest factory 7.0.0 build (NRD90S), but even though fastboot says everything was successful, nothing seems to have changed. Any ideas on how to fix this?
Same thing just happened to me. I have no root or anything but it will not boot the OS. I hope there is a fix for the problem because I really want to use the phone.
Same thing just happened to me.
Click to expand...
Click to collapse
No recovery for you either?
What was the latest Build you had when it was working fine?
To get into the recovery plug the phone into your computer. Go into fastboot (vol down + power) and select the power off option. When it turns off or goes to the charging screen, hold volume up + power to boot to download mode. Once in download mode, turn the phone off by holding vol down + power, then go back into fastboot and you should be able to now access recovery mode. This is what I did, and then flashed back to 6.0.1 and it runs fine now. No Idea why going into download mode allows you to then access recovery and get one clean boot, but it does
Druas said:
I was just using my phone like normal today opening up the transit app at the bus stop and it randomly froze and restarted. After that, it only shows the initial Google screen and just keeps bootlooping, but never even gets to the part where the OS is loading (with the google animation). It was just on stock 6.0.1, MTC20K I think. Was not rooted. Bootloader was/is unlocked. Secure boot was/is enabled. It won't even go into stock recovery (when I select recovery it immediately goes back to the Google screen and continues as if I had never selected recovery). I have tried manually flashing each piece of the latest factory 7.0.0 build (NRD90S), but even though fastboot says everything was successful, nothing seems to have changed. Any ideas on how to fix this?
Click to expand...
Click to collapse
Had the same thing happen - Now typing to you from my warranty replacement. Only option.
blackpaw78 said:
To get into the recovery plug the phone into your computer. Go into fastboot (vol down + power) and select the power off option. When it turns off or goes to the charging screen, hold volume up + power to boot to download mode. Once in download mode, turn the phone off by holding vol down + power, then go back into fastboot and you should be able to now access recovery mode. This is what I did, and then flashed back to 6.0.1 and it runs fine now. No Idea why going into download mode allows you to then access recovery and get one clean boot, but it does
Click to expand...
Click to collapse
Surprisingly, this worked. I forgot about download mode being an option. I also am not sure why this worked.
Edit: The phone boots, but is still randomly rebooting rather often. Not sure why, as everything was wiped and it should have been a fresh install of everything.
Another Edit: Back to boot looping/not getting to the Android loading screen. I didn't do anything other than let it download my apps. Maybe it is a hardware problem after all because it did successfully boot into Android a couple times.
This seems to be a common problem which I have, too. Looks like a whole series of devices had these issues. Currently LG is unable to repair my device because auf missing spare parts they say. So after effortless 3 weeks they will send my unrepaired device back to me with a letter for my dealer to get back my money.
Nice quality and service, LG - NOT!
Janny82 said:
This seems to be a common problem which I have, too. Looks like a whole series of devices had these issues. Currently LG is unable to repair my device because auf missing spare parts they say. So after effortless 3 weeks they will send my unrepaired device back to me with a letter for my dealer to get back my money.
Nice quality and service, LG - NOT!
Click to expand...
Click to collapse
That is actually pretty good outcome. Pixel phone is coming out soon.
Just had this happen today. Streaming music over Bluetooth and using another app, then tried switching tracks in Google Play Music and the app froze. Phone was unresponsive with app on the screen, then screen went off and wouldn't power on.
I finally got it on by holding down power for 30 seconds, but kept boot-looping to Google boot screen. I was able to get into fastboot mode and wipe everything and install the factory image. Still doing the same thing!
Just got off phone with Google. Told the rep everything I had tried and she is working on a replacement order. Supposed to call me back after chatting with higher level support. I wish they would just send me a new Pixel phone, or the 6P at least!
Ive had the same issue, where I just couldnt get passed the Google screen, the only solution for me to get back on to my phone was to let it happen until the battery died. After i let the battery die i turned it back on normally and connected it to my charger, it hasnt turned off since but im sure it will sooner or later
Edit: Issue is still happening but the only way for me to turn it back on is because the battery dies
This just happened to my and my wifes phones...all within a week of each other. I sent my wife's in about a week and a half ago to LG for warranty service. I am hoping that they are able to fix it...it is still in the 'repair' phase. I am trying to decide whether or not I want to send my phone in (which just died yesterday) before or after LG figures out what is going on with my wifes. In both cases, the phones were running fine and just shut down by themselves. The battery was not dead. Each time, the phone will boot to the Google screen, but then immediate shut down. I can get in to recovery and do actions within there, so I do not believe it to be a battery issue. However, as soon as you attempt to boot the phone, it will die.
Were you guys using stock setups or custom ones?
Sent from my Nexus 5X using Tapatalk
Its a 'known' issue. Google has confirmed there is an issue. Only solution appears to be a warranty replacement.
https://productforums.google.com/forum/#!topic/nexus/r29mtzLFS0g;context-place=topicsearchin/nexus/nexus$205x$20bootloop
---------- Post added at 10:22 AM ---------- Previous post was at 10:21 AM ----------
Psychofrantics said:
Were you guys using stock setups or custom ones?
Sent from my Nexus 5X using Tapatalk
Click to expand...
Click to collapse
on both phones, bone stock. Only difference was I was running the beta before getting the stock OTA and my wife's was full stock and received the stock OTA.
I'm having the exact same problem here. Running Android 6.0.1, rooted. Phone suddenly turned off and won't start past the "Google" screen, except for once when it booted fully then immediately shut down, and three times when it loaded the boot animation and shut down. Bootloader is unlocked and TWRP recovery is installed. I can access fastboot but not recovery. I've tried the suggestion of booting into download mode then recovery again, but that didn't work. I have NOT tried updating to Android 7 yet, so this isn't the same boot loop issue faced by some other users. I don't want to try flashing stock yet and lose my data because I have a ton of Tasker profiles and tasks that I haven't backed up in months and I don't want to risk losing them! Serves me right...
Any suggestions?
Same HERE !!!!
the samed for me, and still now i can't light it up
sagshar said:
I'm having the exact same problem here. Running Android 6.0.1, rooted. Phone suddenly turned off and won't start past the "Google" screen, except for once when it booted fully then immediately shut down, and three times when it loaded the boot animation and shut down. Bootloader is unlocked and TWRP recovery is installed. I can access fastboot but not recovery. I've tried the suggestion of booting into download mode then recovery again, but that didn't work. I have NOT tried updating to Android 7 yet, so this isn't the same boot loop issue faced by some other users. I don't want to try flashing stock yet and lose my data because I have a ton of Tasker profiles and tasks that I haven't backed up in months and I don't want to risk losing them! Serves me right...
Any suggestions?
Click to expand...
Click to collapse
In my opinion your EMMC probably died, but you can try reflashing factory images to see if it is some other problem.
I would only try LGUP as a last resort because it will set Allow OEM unlocking to false and lock your bootloader, making further experimentation difficult.
BTW IMO the Android 7 bootloop probably isn't related to Android 7. I think they are just saying hardware problem (EMMC failure) that happens to show up more frequently when you have large updates of OS.
The way Google worded it, it made it seem like Android 7 is killing some hardware because of some incompatibility with just some isolated hardware builds.
I would suggest you let it keep booting and flash some factory images and sometimes EMMC will come back briefly and boot. If it does, immediately backup as much as you can before doing anything else.
Same deal for me and they are sending a replacement. This is a MAJOR blackeye!
Is your phone under warranty then? I am having the same problem as everyone on here. I've tried everything. I bought the phone just over a year ago though, so am a little concerned Google will turn around and tell me it's not their problem... Even though this is clearly a fault!

Pixel XL stuck in Boot Loop after PPP5 installed

My Pixel XL downloaded and installed PP5 yesterday, seemed to go okay. Initially, it would boot but spontaneously reboot after 1-2 minutes of run time. But it degraded and now it is stuck on a white screen with Google, and reboots before the animation begins.
I can get into the Bootloader, but when I try to select Recovery mode it just goes back to the white boot screen and repeats. In Bootloader I can select Off, but it only shuts off for a short time then reboots on its own into the boot loop.
This was running stock Android, bought from Google Play store, unlocked, 32GB version, and I had run the previous 3 versions of Android P Beta without problems.
Is there anyway I can do a factory data reset without the Recovery mode?
Thanks,
...Patrick
pamack said:
My Pixel XL downloaded and installed PP5 yesterday, seemed to go okay. Initially, it would boot but spontaneously reboot after 1-2 minutes of run time. But it degraded and now it is stuck on a white screen with Google, and reboots before the animation begins.
I can get into the Bootloader, but when I try to select Recovery mode it just goes back to the white boot screen and repeats. In Bootloader I can select Off, but it only shuts off for a short time then reboots on its own into the boot loop.
This was running stock Android, bought from Google Play store, unlocked, 32GB version, and I had run the previous 3 versions of Android P Beta without problems.
Is there anyway I can do a factory data reset without the Recovery mode?
Thanks,
...Patrick
Click to expand...
Click to collapse
You didn't relock the bootloader did you? After unlocking it?
Phalanx7621 said:
You didn't relock the bootloader did you? After unlocking it?
Click to expand...
Click to collapse
No, I did not lock the bootloader. The phone was originally unlocked, and I never rooted it. It was completely stock. But it was definitely acting crazy....at one point I did see the Recovery mode but I did not know at the time what to do with it. Once I had a minute to research that on my laptop then it would never go back into Recovery mode.
So maybe I inadvertently locked it, but not that I know that I did it.
...Patrick
Phalanx7621 said:
You didn't relock the bootloader did you? After unlocking it?
Click to expand...
Click to collapse
No, I did not lock the bootloader. The phone was originally unlocked, and I never rooted it. It was completely stock. But it was definitely acting crazy....at one point I did see the Recovery mode but I did not know at the time what to do with it. Once I had a minute to research that on my laptop then it would never go back into Recovery mode.
So maybe I inadvertently locked it, but not that I know that I did it.
...Patrick
pamack said:
No, I did not lock the bootloader. The phone was originally unlocked, and I never rooted it. It was completely stock. But it was definitely acting crazy....at one point I did see the Recovery mode but I did not know at the time what to do with it. Once I had a minute to research that on my laptop then it would never go back into Recovery mode.
So maybe I inadvertently locked it, but not that I know that I did it.
...Patrick
Click to expand...
Click to collapse
I ended up asking uBreakiFix to diagnose the problem....and they indicate it is a bad motherboard.
It can be repaired for $380. I passed, and now own a brick that flashes from one Boot to the next, occassionally running for 30 seconds, but not quite long enough for me to run Reset Factory Settings.
Oh bother, < 2 years old.
...Patrick
pamack said:
I ended up asking uBreakiFix to diagnose the problem....and they indicate it is a bad motherboard.
It can be repaired for $380. I passed, and now own a brick that flashes from one Boot to the next, occassionally running for 30 seconds, but not quite long enough for me to run Reset Factory Settings.
Oh bother, < 2 years old.
...Patrick
Click to expand...
Click to collapse
Still probably worth flashing via adb to check?
mikefnz said:
Still probably worth flashing via adb to check?
Click to expand...
Click to collapse
He means fastboot.

Pixel XL bootloop...is it bricked?

My Pixel XL (Verizon, stock Pie, never rooted/unlocked) started boot looping, with no real trigger that I can think of. It just shows the "Google" logo, turns off, shows the "Google" logo again, etc.
I can get to the bootloader, but:
The bootloader is locked, and I cannot unlock it because I never enabled it in the Android settings. Thus, fastboot cannot flash any images to the device.
Selecting Recovery just sends the phone back into a boot loop, so no adb.
Am I just screwed? Are there any other options here that I haven't thought of? I did a ton of Google searching before posting this here, and nothing seemed to indicate any sort of solution.
It is from around when the Pixel XL launched, and so it's out of warranty. Google support was not very helpful and just pointed me towards third party repair.
If the phone won't turn on, the bootloader is locked, recovery doesn't work and developer options are off, there's really not so much to do.
The only thing that comes to mind is a factory reset with fastboot. I never did that with developer options off and/or locked bootloader, so I don't really know what to expect.
You can try following this guide, but I can't promise it will work.
If a factory reset does not work then you are out off luck.
Oops I see now you said recovery is not working.
TENN3R said:
If the phone won't turn on, the bootloader is locked, recovery doesn't work and developer options are off, there's really not so much to do.
The only thing that comes to mind is a factory reset with fastboot. I never did that with developer options off and/or locked bootloader, so I don't really know what to expect.
You can try following this guide, but I can't promise it will work.
Click to expand...
Click to collapse
Yeah both of those commands require the device to be unlocked, unfortunately.
Looks like I might be SOL. Thanks for the replies regardless.
I can see almost everyone has got the same issue during the same period of time (nearly 2 years after the release, by the time everyone's mobile phone contracts end). This looks like something they do to keep sales going with an active revenue channel. Finally, I admit what Apple users say after ending up with this frustration with a very carefully used Google Pixel XL phone with this boot loop issue.
Seiru said:
My Pixel XL (Verizon, stock Pie, never rooted/unlocked) started boot looping, with no real trigger that I can think of. It just shows the "Google" logo, turns off, shows the "Google" logo again, etc.
I can get to the bootloader, but:
The bootloader is locked, and I cannot unlock it because I never enabled it in the Android settings. Thus, fastboot cannot flash any images to the device.
Selecting Recovery just sends the phone back into a boot loop, so no adb.
Am I just screwed? Are there any other options here that I haven't thought of? I did a ton of Google searching before posting this here, and nothing seemed to indicate any sort of solution.
It is from around when the Pixel XL launched, and so it's out of warranty. Google support was not very helpful and just pointed me towards third party repair.
Click to expand...
Click to collapse
Try this if: When the phone goes off charge it for an hour, then press and hold power until the phone turns on. Then Settings > System > Advanced > Reset options > Erase all data (Factory reset). You'll lose all your data but at this point you have nothing to lose.
Adding my voice here. My PXL just started doing this on Friday, and even flashing factory images doesn't fix the issue (my bootloader was unlocked). I had to breakdown and buy a pixel 3. Not happy, I expected my PXL to last at least 3 years, I babied that sucker. Hell, my LG G2 lasted 3 years before the touchscreen sterted messing up. Even that phone still boots.

Soft bricked Pixel XL

A week ago, all of a sudden, my Pixel decided to freeze and become unresponsive. To make a long story short, it only goes to the Google logo screen and will not go into bootloader or recovery mode. Took it to a repair shop and they said it needed to be sent back to Google (it's three years old so long past its warranty) which would cost a fortune. They said it is soft bricked.
I'm looking into things and since my phone is already useless, I surely can't make it any worse. (fingers crossed.)
I'm wondering if anyone has any tips on how to get my phone back up and running whilst also keeping all of the data on my phone. I'm not keen on wiping the data as it has important information on it. Is it possible to unbrick a Pixel XL without factory resetting it?
Does anyone have a simpletons guide on how to do it? I've looked at numerous guides and they are either long winded or far too complicated for me. I'm not familiar with downloading a file to unzip it or extracting it. Although, I am very much willing to learn given my circumstances.
If anyone can provide any information, I would be very grateful!
i think if anything at this point, you need to assume none of your data can be saved. if you send it to google for them to fix, no data will be kept most likely, nor if you find any solution to do yourself. what happens if on the google screen you hold down power and voldown until it turns off and then keep holding them down?
It goes into fastboot with the android guy on it's back and it gives me the "restart bootloader", "recovery mode", "barcodes", etc, options. None of which the phone can enter apart from the barcodes and the powering off option. :crying:
HanaTruly said:
A week ago, all of a sudden, my Pixel decided to freeze and become unresponsive. To make a long story short, it only goes to the Google logo screen and will not go into bootloader or recovery mode. Took it to a repair shop and they said it needed to be sent back to Google (it's three years old so long past its warranty) which would cost a fortune. They said it is soft bricked.
I'm looking into things and since my phone is already useless, I surely can't make it any worse. (fingers crossed.)
I'm wondering if anyone has any tips on how to get my phone back up and running whilst also keeping all of the data on my phone. I'm not keen on wiping the data as it has important information on it. Is it possible to unbrick a Pixel XL without factory resetting it?
Does anyone have a simpletons guide on how to do it? I've looked at numerous guides and they are either long winded or far too complicated for me. I'm not familiar with downloading a file to unzip it or extracting it. Although, I am very much willing to learn given my circumstances.
If anyone can provide any information, I would be very grateful!
Click to expand...
Click to collapse
I have the same exact problem. Started Nov. 14. Talked to google asked me to take it to uBreakiFix. They ran diagnostics and said they can't fix it.
My phone used to boot up randomly but would freeze after 2-3 mins and crash again into a bootloop. Now it's stuck on white "google" screen and can't get into recovery or any other modes.
Nilkong said:
I have the same exact problem. Started Nov. 14. Talked to google asked me to take it to uBreakiFix. They ran diagnostics and said they can't fix it.
My phone used to boot up randomly but would freeze after 2-3 mins and crash again into a bootloop. Now it's stuck on white "google" screen and can't get into recovery or any other modes.
Click to expand...
Click to collapse
by boot up randomly do you mean it would randomly reboot or turn on while it was off?
sudoxd said:
by boot up randomly do you mean it would randomly reboot or turn on while it was off?
Click to expand...
Click to collapse
I mean it would boot successfully and take me to lock screen where I can use the phone for few minutes until it freezes again.
Currently I am connected to computer with adb shell open and have phone on the screen where I can see options to select 'barcode' 'recovery mode' 'power off'. The screen shows baseband version, CPU, UFS, DRAM, "Device is locked".
Adb is recognizing the devices (I can't unlock because I had the option to "OEM unlock" turned off in settings). But when I try selecting 'recovery mode' its back to 'Google' screen and stuck there.
Nilkong said:
I mean it would boot successfully and take me to lock screen where I can use the phone for few minutes until it freezes again.
Currently I am connected to computer with adb shell open and have phone on the screen where I can see options to select 'barcode' 'recovery mode' 'power off'. The screen shows baseband version, CPU, UFS, DRAM, "Device is locked".
Adb is recognizing the devices (I can't unlock because I had the option to "OEM unlock" turned off in settings). But when I try selecting 'recovery mode' its back to 'Google' screen and stuck there.
Click to expand...
Click to collapse
try sideloading the latest OTA and see what happens, this doesnt require an unlocked bootloader, just adb sideload.
sudoxd said:
try sideloading the latest OTA and see what happens, this doesnt require an unlocked bootloader, just adb sideload.
Click to expand...
Click to collapse
I flashed the new version of OTA from google's site. And it looks like it's booting up. Will report back if it crashes or continues to hold up.
Thanks!
EDIT: It's back to boot looping. It was at the "G" screen with white loading bar underneath. It froze there and went back to bootloop. Looks like there might be no avail.
Similar issue here. I gave up on it a month ago, but I figured it can't hurt to ask around. FWIW, there seem to be a lot of similar reports on Google's Pixel support forum.
Anyway, during the 2nd year of owning my Pixel XL (got it in Septempter 2017), I started experiencing slowdowns and random reboots more frequently, but never any bootloops until after receiving Android 10. After receiving Android 10, the random reboots seemed to be happening more frequently. I also experienced a weird issue where the phone would spontaneously exit out of the Google app (reached by left edge swipe from home screen) consistently within a few seconds of entering it.
Eventually, after another increasingly common random freeze, the phone rebooted and got stuck in a bootloop. Initially, chances were high that I would be able to complete the boot process after a few attempts, but inevitably, it would freeze and start bootlooping again. During the handful of successful boot attempts, I was able to backup some photos, and more importantly, enable OEM bootloader unlock in the developer options. After several more failed attempts to boot successfully, I did a total reflash of the latest factory image as of September 2019, after which I was able to get partially through the new phone setup process before crashing. For each subsequent attempt, the crash would happen earlier and earlier in the setup process until it wouldn't get further than the 'G' logo before rebooting. When the October 2019 factory image became available, I tried flashing that as well, but no luck.
On one hand, considering that the failures got progressively worse over time, it seems that this is fundamental hardware failure in the SOC, motherboard, RAM, etc. On the other hand, there seems to have been so many recent reports of this, especially after the Android 10 update, that I wonder whether or not it is software issue. Or could it be some combination of both, where the Android 10 update is pushing the hardware in new ways that is more likely to exacerbate an underlying hardware flaw?
Should I try re-flashing with Android 9 instead? At this point, it is a total brick...
sudoxd said:
try sideloading the latest OTA and see what happens, this doesnt require an unlocked bootloader, just adb sideload.
Click to expand...
Click to collapse
Would this be possible to do with a phone that doesnt turn on but the computer does see it as a qualcom device?
ckidmcd said:
Would this be possible to do with a phone that doesnt turn on but the computer does see it as a qualcom device?
Click to expand...
Click to collapse
Needs to boot to any recovery, custom or not, to sideload an ota
sudoxd said:
Needs to boot to any recovery, custom or not, to sideload an ota
Click to expand...
Click to collapse
Do I have any options to pull the data from the device since it does see a qualcomm device when plugged into a computer?
ckidmcd said:
Do I have any options to pull the data from the device since it does see a qualcomm device when plugged into a computer?
Click to expand...
Click to collapse
does fastboot see your phone at all if you type `fastboot devices`

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