Phone Stuck in Boot Loop - OnePlus 6 Questions & Answers

I have been running with Nolimit ROM since early on. On Sunday I decided to try Franken. All seemed to go well with the flash but the phone would boot into the red screen. I shut it off and it refused to turn back on. I let it charge overnight and tried to turn it on the next morning. Nada. I did notice that it was showing a device under ports. After doing some searching, I found the tool that OnePlus uses to recover from the hard brick. Installed using the tool and it completed successfully. Upon reboot it would just hang at the initial splash screen. Doing more research I found the Hydrogen OS recovery and tried that. Again, I see the H2OS splash screen but it never boots. I can get into Fastboot and Recovery and have tried clearing everything. Before I go back to the Oxygen OS, is there anything else I can do or is it RMA time?
BTW, the bootloader is now locked, a side effect from using the OnePlus recovery tool.
I almost forgot... because the OS won't boot, It won't allow OEM unlock. Trying to unlock the bootloader gives a failed for remote access.
Thanks in advance.

You can't boot locked with a non-stock recovery. The bootloader won't allow it.
Maybe try running the unbrick tool again. Sorry, if you can get to recovery, you don't need the unbrick tool. You should be able to adb push the full OS to your phone and flash it in recovery.

The stock recovery does not provide a way to flash. At least I don't see anything

Thread closed as OP request.

Related

[Q] Is my phone really dead beyond repair?

Hi,
Today my phone was drained and I left it charging from my laptop. 3-4 hours later I tried to boot it but with no luck.
Also now it was very warm. After some trial and error - and possibly because the phone now was cooler - I was able to boot into fastboot.
But I can't get past the HTC logo. In fastboot I have tried to reflash the boot.img from CM10.2. I have also reflashed a recovery - but still
I can't boot into recovery or CM.
I also tried to unlock the phone but when doing so, I don't get send to the last screen, where I actually unlock the phone (it was already unlocked, it was just a test)
My suspicion is that the internal storage has been fried when the phone overheated - since it seems like that fastboot says it's writing but in fact I doubt that the phone actually wrote anything.
How can I know? Apart from the dead phone, all my pictures are lost in there too.
I would love a little help...
Frederik
In bootloader menu (that with fastboot) you can go to recovery.
Now recovery is broken. Re-flash or flash another recovery. you will now when it's ok. It let you do your work.
In that same menu you have Factory reset. But this erase all in your phone (and SD card)!
Try reflashing stock recovery... Let it do what it needs to do in recovery and then flash whatever custom recovery you have.

Shield doesnt boot anymore

So guys, i've done it. I bring my first device.
Yesterday i tried to downgrade via fastboot with this recovery images https://developer.nvidia.com/gameworksdownload (yes is choose the right ones)
flash boot, check
flash recovery, check
flash system, failes (insufficient memory)
erase sytem, check
flash system, failed (insufficient memory)
flash twrp, check, but no usb mouse so
flash cwm, check
factory reset, check
rom.zip and gapps on sd card, check
reboot, boot into bootloader, no chance
It boots everytime normal, so i cant enter the recovery.
Connect it to charger, check
charging led lights up, check
Go sleeping, check
doenst boot into bootloader :/
Back to charger
Now I wanted to try it again and i wont even boot.
Anyone has an Idea? Or is it really bricked?
Can you still see the device listed using fast boot?
No, because I can't enter the bootloader or the recovery. But it boots again
...
The same thing just happened to me. Unfortunately, I am still trying to figure it out. I flashed a "stock" recovery that I had found in order to be able to take the OTAs. Now when I boot, I just stay stuck on the NVIDIA splash screen.....been there for hours.
rafaelvelasquez2 said:
The same thing just happened to me. Unfortunately, I am still trying to figure it out. I flashed a "stock" recovery that I had found in order to be able to take the OTAs. Now when I boot, I just stay stuck on the NVIDIA splash screen.....been there for hours.
Click to expand...
Click to collapse
Same here.....
Mine is working again. Booting in the bootloader is a little bit tricky.
Have you tried to flash all? Boot.img, recovery.img and system.img?
...
I had the same issue. But after trying to get into the bootloader using POWER + VOLUME DOWN for about 15 minutes it finally went to the bootloader and I was able to re-flash it. I have a feeling it's the cludgy power button.
You do not need to flash the stock recovery to take the ota. I have taken 2 otas now on custom recovery without any issue and without loosing root. Just an FYI.
Sent from my SHIELD Tablet using XDA Free mobile app
I just did a factory reset under lollipop, locked boot-loader rooted and it rebooted to the green android screen then dropped into CWM and asked to fix root. I said no, then it went to the nvidia boot logo and it is stuck. Any suggestions? Thanks.
Edit: nevermind, I just powered it off after about 20 minuets and it hung again. When I plugged it into my pc, it finally poped into the setup/welcome screen. Pretty weird. Heart attack averted

TWRP Boot Loop

Hi,
I tried yesterday to return my Nexus 5 to a stock image so that I could do OTA updates. I realised after that I also had to return it to stock recovery because TWRP was not letting it work.
using this tutorial, I booted into the latest TWRP image, which only caused my phone to go into a boot loop, only making it as far as the Teamwin screen. The phone will not load the bootloader to do anything with fastboot.
what are my options?
t.holley.os said:
Hi,
I tried yesterday to return my Nexus 5 to a stock image so that I could do OTA updates. I realised after that I also had to return it to stock recovery because TWRP was not letting it work.
using this tutorial, I booted into the latest TWRP image, which only caused my phone to go into a boot loop, only making it as far as the Teamwin screen. The phone will not load the bootloader to do anything with fastboot.
what are my options?
Click to expand...
Click to collapse
What do you want to do exactly? Restore stock recovery so that you can take the OTA? If you followed either one of the methods on that thread, you should already be stock, i don't get why you booted TWRP again.
Hi,
As I mentioned, following that tutorial, I just booted into the TWRP image. It wasn't that tutorial I used to flash the stock image. All that I did was get back to the stock android.
I originally did try using their method, but wasn't able to get the .sh script to run so I used another tutorial to flash the android image, but didn't have a boot or recovery that I flashed. I was able to download the update now and tried installing, but it would take me to the TWRP recovery and say that the update failed.
I was following the optional steps at the bottom, thinking that was what I needed to lock everything back up, clearly that wasn't right.
t.holley.os said:
Hi,
As I mentioned, following that tutorial, I just booted into the TWRP image. It wasn't that tutorial I used to flash the stock image. All that I did was get back to the stock android.
I originally did try using their method, but wasn't able to get the .sh script to run so I used another tutorial to flash the android image, but didn't have a boot or recovery that I flashed. I was able to download the update now and tried installing, but it would take me to the TWRP recovery and say that the update failed.
I was following the optional steps at the bottom, thinking that was what I needed to lock everything back up, clearly that wasn't right.
Click to expand...
Click to collapse
Just flash the stock recovery image with fastboot
Sent from my Nexus 9 using XDA Free mobile app
That's what I am asking...I can't load into anything on the Nexus to use fastboot, it is stuck loading into this TWRP image.
t.holley.os said:
That's what I am asking...I can't load into anything on the Nexus to use fastboot, it is stuck loading into this TWRP image.
Click to expand...
Click to collapse
Press and hold power for 30 second, the device will try to boot but just keep holding the power. Then press and hold vol down and power. It doesn't boot into the bootloader?
Sent from my Nexus 9 using XDA Free mobile app
Hi,
I tried this again today and was able to get into it. Yesterday it didn't want to boot into it for some reason. Followed the tutorial I posted from the start to re-flash everything, and so far seems to be working. Hasn't loaded into android yet, just stuck on the loading screen, hoping it's just the initial start up that sometimes takes a while.
t.holley.os said:
Hi,
I tried this again today and was able to get into it. Yesterday it didn't want to boot into it for some reason. Followed the tutorial I posted from the start to re-flash everything, and so far seems to be working. Hasn't loaded into android yet, just stuck on the loading screen, hoping it's just the initial start up that sometimes takes a while.
Click to expand...
Click to collapse
FYI the TWRP boot loops are due to MTP bug that was never fully fixed from 2860. It's better than it used to be, but still an issue occasionally, especially if connected to power while you try to get in to TWRP.

TWRP keeps crashing

I unlocked the bootloader on my phone, then flashed twrp. I rebooted to twrp and installed boot.img, TWRPWorkingInstaller.zip, TWRP-BLUE-FIX.zip, and Root.zip. Rebooting worked fine, but I saw that there was a newer twrp (twrp-3.2.1-3-wOOSkernel.img, so I tried installing it from twrp. The problem is that I installed it to the system image partition. After that, everything got wonky, unsurprisingly. Now, if I try to boot to twrp, it loads and I get to the first menu, but I cannot interact with it at all. Then the screen goes black and the led lights up blue. It doesn't respond to anything except shutting it down. I can hold the power button down to power off, but it reboots instead to a black screen with the blue LED. I can also boot into the bootloader. I can reflash twrp. When I restart to recovery then, I get the screen asking if I want to keep the system files locked or swipe to unlock it. The device seems to work fine for about 5 seconds from the time I get to the first twrp menu, then it doesn't respond. About 5-8 seconds later, the screen goes black and the blue led comes on. I also cannot power-off the device. If I try, it reboots.
Is there anything I can do to recover from this? I've got the stock recovery files (OnePlus6Oxygen_22_OTA_009_all_1805172226_f7d1518e0e704ca3.zip), but I can't copy them to the device because it won't boot to the OS.
Yippee38 said:
I unlocked the bootloader on my phone, then flashed twrp. I rebooted to twrp and installed boot.img, TWRPWorkingInstaller.zip, TWRP-BLUE-FIX.zip, and Root.zip. Rebooting worked fine, but I saw that there was a newer twrp (twrp-3.2.1-3-wOOSkernel.img, so I tried installing it from twrp. The problem is that I installed it to the system image partition. After that, everything got wonky, unsurprisingly. Now, if I try to boot to twrp, it loads and I get to the first menu, but I cannot interact with it at all. Then the screen goes black and the led lights up blue. It doesn't respond to anything except shutting it down. I can hold the power button down to power off, but it reboots instead to a black screen with the blue LED. I can also boot into the bootloader. I can reflash twrp. When I restart to recovery then, I get the screen asking if I want to keep the system files locked or swipe to unlock it. The device seems to work fine for about 5 seconds from the time I get to the first twrp menu, then it doesn't respond. About 5-8 seconds later, the screen goes black and the blue led comes on. I also cannot power-off the device. If I try, it reboots.
Is there anything I can do to recover from this? I've got the stock recovery files (OnePlus6Oxygen_22_OTA_009_all_1805172226_f7d1518e0e704ca3.zip), but I can't copy them to the device because it won't boot to the OS.
Click to expand...
Click to collapse
Do you have a TWRP backup from when your phone worked on an external drive?
Can you access fastboot? Just use the fastboot ROM files to reflash the OS. Or if that doesn't work try the unbrick tool.
Yeah. I can use fastboot. However, I wasn't able to get to ROM to flash. I'm not sure if I'm using the correct parameters in the command. I googled, but all I came up with was flashing custom ROMs. Where can I find the unbrick tool?
NM. Found the unbrick tool. I may try it. I'll let you know how it works.
Thanks for your help @NateDev!. The Unbrick Tool helped me fix it.
Yippee38 said:
Thanks for your help @NateDev!. The Unbrick Tool helped me fix it.
Click to expand...
Click to collapse
Glad you got it solved

Huawei Watch 2 Pro (Shawshark) stuck in horrible bootloop

My relatives have gotten this watch gifted to them a while back but it was in chinese so to get it to English I had to unlock bootloader and flash the room. But while doing so I by mistake flashed twrp instead of booting into it on the Recovery Partition right after unlocking bootloader and after rebooting, it was stuck in a horrible bootloop. Why is it horrible?
So the problem is, it keeps booting into twrp, fails to mount data cache and everything, shuts down and reboots again, shows a warning that it can't detect an operating system and continues to boot into the same twrp recovery and so on. When I try to boot into bootloader, it says to go to g.co/ABH and read instructions to proceed, but after holding down the button to continue to boot, it goes back to the same bootloop.
I cannot boot it into bootloader or get it into fastboot, I can't do anything in twrp and I can't boot into os (cause of course, there is none). Does anyone know how I can fix this? I've been struggling for 4 hours with this today. I'm really scared that I've completely bricked it and can't restore it .
I can see it in adb devices while it's in twrp and twrp is freaking out then shutting down, but I can't even side load a rom to even install something I can boot into.
Link me a thread if there is one where this problem gets fixed or help me please. Thank you!

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