Stock Bootloader not loading on A2017U B29 - ZTE Axon 7 Questions & Answers

I unlocked bootloader, flashed TWRP and then CM13 and after a while of using it got tired of the bugs and went back to the stock ROM. Then I figured I might as well go all the way stock to use Android Pay, so I locked the bootloader and everything seemed to be working fine.
In fact, right now the phone boots up just fine and the stock rom runs with no issues. Until last night that I got the OTA notification for Nougat and got all excited about it and tried installing it. That's when I realized I don't seem to have a bootloader. Or at least I have no way of accessing it.
When I hold the power and volume up, the screen just turns off. I can always boot up the phone but the bootloader, I can't access. Needless to say, the update to Nougat failed. After downloading and unpacking, when the phone restarted it behaved as though I had done the volume up + power. Just turned off.
I just want to somehow flash the stock bootloader and have everything back to stock but don't know how.
Any help is appreciated.

Related

I cannot update the software after recovering from softbrick

I originally had OOS3.0.2, and I tried to get Beanstalk rom installed. Beanstalk didn't load correctly, and I softbricked my phone. I managed to go through the recovery of downloading the qualcomm drivers and that weird updating program and then sideload an older version of OOS (2.2). I went to this link and did method 1 https://forums.oneplus.net/threads/...ck-guide-for-a-hard-bricked-oneplus-2.347607/. But when I get things fixed up, I can't seem to update to CM13, or even to do a normal update with root, without root, with twrp, without twrp. Nothing. Strangely enough, no matter what I've been doing, the data I had from the very original pre-screw-up time is still all there. Every time I try an update it hangs on the 1+ screen and stays there. How can I get past this? I can't seem to upgrade, and I'm stuck in lollipop.
Well I was still able to get into my phone and do a stock recovery from the Update and Restore option from the phones settings menu, so that fixed it.

Nexus Bootloop (tried flashing and wiping)

Hi,
I have a rooted nexus 6p, all was well until it decided to reboot and boot-loop when I opened my music app. I get as far as the white Google logo then the phone restarts and I'm back to the normal warning then Google logo then reboot.
I have managed to get into the recovery screen (with the android laying down) but when i choose recovery mode the phone just starts boot-looping again.
I am wondering if I have somehow managed to hard brick it?
I have tried to flash the latest OS onto my phone but it said no signature.
I did managed to wipe the device also.
Thanks for any help.
Are you on Nougat or still on MM? Since you're rooted, it means you didn't receive an OTA. Did you flash it yourself, originally?
istperson said:
Are you on Nougat or still on MM? Since you're rooted, it means you didn't receive an OTA. Did you flash it yourself, originally?
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Click to collapse
When my phone started playing up I was still on MM 6.0.1, I tried to flash N after the boot-looping started.
Thanks

Moto X Pure Edition Freezing and Bootlooping.

I have a Moto X Pure Edition that I have been tinkering with lately. I installed TWRP, and began to install custom roms. At one point, I attempted to resort back to stock, and I have been having issues since. I reflashed TWRP, and everytime I flash a custom ROM, it loads up, but I am unable to use the touchscreen at the Choose Language screen, and then it bootloops on me. I've wiped the caches. Any ideas?
Reflash stock with fastboot. You can find the method and files in the return to stock and lock thread in my signature (you don't have to re-lock the bootloader, if you read my first post in that thread it shows you how to do it without relocking the bootloader)
acejavelin said:
Reflash stock with fastboot. You can find the method and files in the return to stock and lock thread in my signature (you don't have to re-lock the bootloader, if you read my first post in that thread it shows you how to do it without relocking the bootloader)
Click to expand...
Click to collapse
Hi, have same problem, tried a lot custom ROMS, but it Freez after boot and goes to reboot.
But if phone connected to charger it works fine. As only I put USB out - freez in 5 seconds and reboots.
in Recovery mode works well even without charger.
Bought this XT1575 phone with unlocked bootloader and official ROM 6.0, previous owner said it works well, but he use custom ROM. And when I get and check it - works normally, until I connect it to Wi-Fi and google account, its starts to load updates, then ask for reboot (with green adroid logo on screen), and after that problem appears. I already tried different ROMs and wipe and so on, but nothing helps.

I337 extreme lag, random reboots, no recovery

Recently bought a new out-of-the box Galaxy S4 I337 from Amazon. Had i known how much trouble it would give me, i would have picked something else. When i first turned the device on, it was almost totally unusable due to lag and random reboots. Software version was 4.4.2. I used Odin to flash a rootable NB1 onto the device. Still had lag and random reboots. Upgraded to lollipop using this guide: https://forum.xda-developers.com/galaxy-s4-att/help/guide-att-samsung-galaxy-s4-sgh-i337-t3383078 and still have lag and random reboots. Also, the first time i upgraded to lollipop, i installed safestrap not knowing it wouldn't work on lollipop. Obviously, my recovery disappeared. When i figured out what was going on, i did a fresh install of lollipop. I got recovery back, but today when i tried to boot into recovery to wipe the cache, i discovered it had mysteriously stopped working again. If i attempt to boot into recovery, it just skips to the Samsung logo. I didn't install safestrap or any other custom recovery this time.
When i turn the phone on, either it hangs at the AT&T white splash logo and refuses to load at all, or advances to the lock screen. I have disabled animations and every widget i could on the lock screen and yet when i attempt to unlock the phone, it usually freezes. If i repeatedly swipe the phone for thirty seconds or so, it unlocks but it is still frozen and i have to continue swiping to prevent it from locking again. Eventually i'm able to navigate the phone normally, until it randomly reboots or freezes. Sometimes i see an error message that Touchwiz home, Process System, or SystemUI has stopped working or is not responding. This is always accompanied by a freeze. Also, choosing an option in the dialogue that comes up when i press the power button (shut down, reboot, etc) invariably causes the device to soft reboot. Other times a soft reboot happens totally at random, even if i'm not doing anything. Anybody have any idea what's going on or did Amazon just sell me a dud? All of these issues have been happening since before i rooted the device or upgraded it, except for the disappearing recovery mode.
Thanks in advance for your help.
Sounds like a data factory reset is in order. First you need recovery back so I would odin the latest firmware for the phone that can be flashed in odin. If it's still messing up then get Amazon to replace it.
Since you have safe strap though, try booting a TW based rom like Thor ROM or Golden eye ROM. That may fix some things.
StoneyJSG said:
Sounds like a data factory reset is in order. First you need recovery back so I would odin the latest firmware for the phone that can be flashed in odin. If it's still messing up then get Amazon to replace it.
Since you have safe strap though, try booting a TW based rom like Thor ROM or Golden eye ROM. That may fix some things.
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Just wanted to bump this to thank you for your reply. Never got the phone to work but i was able to get it back to stock and return it. I got a refurbished S5 instead.

Nexus 10 stuck in boot animation even after wipe/sideload

I dug out my old Nexus 10 (mantaray/manta) to mess with it and firstly it booted up fine and I updated Android to 5.1.1 (system update). All was well. I was going to flash Pie onto it, so I booted to the bootloader and connected it and unlocked it via fastboot oem unlock. Ever since I did that it will not get passed the boot (colorful balls) screen. I can get back into the bootloader. Next I cleared the cache and then also did a factory reset, same issue. So I flashed the official 5.1.1 (LMY49J) image, and still have the same issue!
No clue how to get to some state where I can boot this thing. My end goal is to have Android Pie / vanilla on it. What should I do?
Edit: I think what I did was I flashed an update rather than the full OTA. I can't find it, so maybe someone can point me to it?
jsm11482 said:
I dug out my old Nexus 10 (mantaray/manta) to mess with it and firstly it booted up fine and I updated Android to 5.1.1 (system update). All was well. I was going to flash Pie onto it, so I booted to the bootloader and connected it and unlocked it via fastboot oem unlock. Ever since I did that it will not get passed the boot (colorful balls) screen. I can get back into the bootloader. Next I cleared the cache and then also did a factory reset, same issue. So I flashed the official 5.1.1 (LMY49J) image, and still have the same issue!
No clue how to get to some state where I can boot this thing. My end goal is to have Android Pie / vanilla on it. What should I do?
Edit: I think what I did was I flashed an update rather than the full OTA. I can't find it, so maybe someone can point me to it?
Click to expand...
Click to collapse
Mine does it aswell, but after like 20 min it boots up. I flash mine with the "Nexus Rool Toolkit" with the option "Flash Stock + Unroot", in your case i wull put the radio button on "Softbrick/Bootloop". Then follow the steps on the screen and then when it reboots the programm will tell you that you need to wait like 20 min. And then it should be up and running again

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