System won't boot - OnePlus 5T Questions & Answers

Hello,
I have been searching posts all day about this but they seem old and I've got none to work.
After following the guide from magiskroot to root my OP5T, system won't boot, it just loops to TWRP.
I have downloaded the last version of TWRP available for OP5T and the last Magisk Su.
I can go to Bootloader and TWRP.
Trying to install OxygenOS 9.0.4 shows an error.
The device was previously on OxygenOS Pie.
Does anybody have an idea ?
Edit: Well, after hard-bricking the device I succeed to reset it with the Unbrick tool found on XDA.
Problem solved I guess

Related

Brick OnePlus 3

Hi and happy new year
I think there is a problem when i have update my OnePlus 3 on Nougat and root it because now the OnePlus3 don't work.
The twrp don't work, only fastboot work.
Now when i boot the OP3, i have a black screen with this lines :
md5 checksum
cache failed
boot failed
boot aging failed
system failed
recovery failed
modem ok
bluetooth ok
adp ok
sec ok
.....
I can boot to fastboot, i have on my pc the zip of OnePlus3.OS.3.2.8.zip and OnePlus3.Nougat.zip.
Do you think is there any issue or is blocked ?
Thanks for help
Use Brick Guide.
I had the same issue since updating to OOS 4. Caused me massive headache today and basically I thought my device was bricked. I had to use a 3.2.6 zip and corresponding Rom via MSKIP toolkit and fastboot/adb to get my device working again. After more than a decade of flashing ROMS this was my biggest fXXk up yet. I feel that TWRP recovery (even the modified ones) are not yet compatible with this update in some way. I constantly got encryption/dm verity issues even when using the modified software. Sadly for now I have gone back to pure stock (Rom/Recovery) to get my device working and updated to Android 7. To be honest I am afraid to go down the custom recovery root on this device for a while due to the headache it caused me today. I can see a few posts of people having issues so this cant be isolated.
Thanks for help
I will success to reinstall the OP3 with nougat and root is ok ^^
It was long but all is ok and i was afraid to send the phone on sav.
So i use the method 2 in this link : https://forum.xda-developers.com/oneplus-3/how-to/guide-mega-unbrick-guide-hard-bricked-t3405700
And i install again the stock rom 3.2.8 with "adb sideload" on fastboot and i install the Maj OTA with vpn.
I install the last TWRP here : https://forum.xda-developers.com/devdb/project/dl/?id=21835 and the last Supersu here : https://download.chainfire.eu/1017/SuperSU/SR1-SuperSU-v2.79-SR1-20161221223537.zip and all it's ok now
I will afraid too like you because my phone was brick when i root nougat.
But i tried and i'ts ok now, i don't know why the first time it's not working.

LG G4 H815 No TWRP Access

Hello members of XDA,
The issue I'm having is pretty rare and found few or non threads about it, so I will try to be the most precise possible.
Yesterday I decided to change the ROM of my LG G4 H815, I was previously on LineageOS, since LineageOS on H815 wasn't developped anymore. So I asked myself why not trying Android Oreo with CypherOS. Before any changes I was with the latest version of LineageOS for H815 and I had TWRP with the version 3.0.2.1. Bootloader was obviously unlocked.
So I starded to download all the required material to switch to CypherOS 5.3.1, while the download I've made a backup of my actual lineageOS installation on my internal storage. Once every thing was downloaded I tried to install CypherOS I had an error 7 in TWRP install box, so I was pretty worried, scouted XDA threads about the error but i was redirected to the solution where you modify the update binary with txt but still didnt worked. I've found a thread talking about updating firmware of the H815 ( https://forum.xda-developers.com/g4/development/v5-8-5-n7-1-2-resurrection-remix-t3704450) While panicking I've done a wipe of everything (dalvik, data,cache and system) .I applied thge firmware update but I also re-read the thread of CypherOS and figured that I needed a newer version of TWRP, installed it so. THen magically CypherOS installed without any issue.
After installing the Gapps (Arm64 8.1 Nano) I rebooted and the first weird thing appears, after seeing the LG screen while the boot I have another screen telling me that the bootloader has been locked and that i should visit g.co/ABH for more information, then CypherOS initialise, CypherOS worked like a charm. So I wanted to go to my TWRP and make a backup in case. I launched ADB and use the command adb reboot recovery, the phone restarted and had the following events : LG logo, warning message about the bootloader, LG logo again and then a black screen. However I was in recovery mode since adb found me with the command fastboot devices. I had no TWRP logo or anything linked to it. Few minutes later, I had the basic recovery mode where you move yourself with the volume buttons and select with power where the functions are pretty limited.
Then I rebooted the phone with adb (fastboot reboot), CypherOS still working perfectly. Thaught that it was the bootloader which back to scratch when he was blocked, I figured out that he was still unlocked, I used the command "fastboot getvar unlocked" through ADB. THen I thaught i had to install back TWRP, tried through the fastboot mode but I had an error
Code:
FAILED (remote: unkown command)
since i tried everything i could even in the basic recovery mode, the only working command in the recovery is "fastboot flash recovery twrp.img" but still does nothing.
I mean it's not that terrible since I can use my phone and i'm about to change phone in 2 months for a Oneplus but i would really like to be able to install magisk on the phone to grant root access and be able to use TWRP on it like I used to. By the way the backup of lineageOS has been deleted while performing unecessary wipes.
Bennou said:
Hello members of XDA,
The issue I'm having is pretty rare and found few or non threads about it, so I will try to be the most precise possible.
Yesterday I decided to change the ROM of my LG G4 H815, I was previously on LineageOS, since LineageOS on H815 wasn't developped anymore. So I asked myself why not trying Android Oreo with CypherOS. Before any changes I was with the latest version of LineageOS for H815 and I had TWRP with the version 3.0.2.1. Bootloader was obviously unlocked.
So I starded to download all the required material to switch to CypherOS 5.3.1, while the download I've made a backup of my actual lineageOS installation on my internal storage. Once every thing was downloaded I tried to install CypherOS I had an error 7 in TWRP install box, so I was pretty worried, scouted XDA threads about the error but i was redirected to the solution where you modify the update binary with txt but still didnt worked. I've found a thread talking about updating firmware of the H815 ( https://forum.xda-developers.com/g4/development/v5-8-5-n7-1-2-resurrection-remix-t3704450) While panicking I've done a wipe of everything (dalvik, data,cache and system) .I applied thge firmware update but I also re-read the thread of CypherOS and figured that I needed a newer version of TWRP, installed it so. THen magically CypherOS installed without any issue.
After installing the Gapps (Arm64 8.1 Nano) I rebooted and the first weird thing appears, after seeing the LG screen while the boot I have another screen telling me that the bootloader has been locked and that i should visit g.co/ABH for more information, then CypherOS initialise, CypherOS worked like a charm. So I wanted to go to my TWRP and make a backup in case. I launched ADB and use the command adb reboot recovery, the phone restarted and had the following events : LG logo, warning message about the bootloader, LG logo again and then a black screen. However I was in recovery mode since adb found me with the command fastboot devices. I had no TWRP logo or anything linked to it. Few minutes later, I had the basic recovery mode where you move yourself with the volume buttons and select with power where the functions are pretty limited.
Then I rebooted the phone with adb (fastboot reboot), CypherOS still working perfectly. Thaught that it was the bootloader which back to scratch when he was blocked, I figured out that he was still unlocked, I used the command "fastboot getvar unlocked" through ADB. THen I thaught i had to install back TWRP, tried through the fastboot mode but I had an error since i tried everything i could even in the basic recovery mode, the only working command in the recovery is "fastboot flash recovery twrp.img" but still does nothing.
I mean it's not that terrible since I can use my phone and i'm about to change phone in 2 months for a Oneplus but i would really like to be able to install magisk on the phone to grant root access and be able to use TWRP on it like I used to. By the way the backup of lineageOS has been deleted while performing unecessary wipes.
Click to expand...
Click to collapse
It's clearly written on the official website and in the official TWRP support thread for the g4 what you have to do when on Nougat bootloader and want to flash TWRP... and keeping it.
Sent from my LG-H815 using XDA Labs
Yet, this still doesnt help me to solve my issue. Do you think there is a way to fix it or no ? If not, I'll just deal with it for the few months lasting.
Bennou said:
Yet, this still doesnt help me to solve my issue. Do you think there is a way to fix it or no ? If not, I'll just deal with it for the few months lasting.
Click to expand...
Click to collapse
Okay if it doesn't work for you you must do something wrong. It works 100%. If you really want help you should explain in detail exactly which steps you took as otherwise it's all just guessing what you're doing.
Sent from my LG-H815 using XDA Labs
Indeed, I didn't followed the procedure exactly, didn't do the step after flashing TWRP (removing battery and boot manually to recovery). Well thank you, was my bad on that.
Should I do a clean new install of cypheros or should I keep it like that, what would be your advice ? Knowing that at the moment CypherOS works like a charm. I also plan to install Magisk on it to root it.
To help others newbie like me, solution can be found here : https://forum.xda-developers.com/g4/development/recovery-twrp-3-touch-recovery-t3442424

Rooting help: bootloop, possible soft-brick

Hey all; first post and 100% green with rooting. This is my first attempt and i'm hitting a stumbling block.
First off, I've been using the guide on "theandroidsoul"(can't post a link due to post count, but a quick google search should bring you to the exact one)
I have successfully setup ADB, unlocked the bootloader, flashed TWRP 3.2.3-1 and have been able to boot into it using ADB.
However on step 10 of the guide i'm using, it's not too clear if i should skip formatting the device memory or go ahead and do it. I did it. I suspect this might be where i went wrong.
Regardless, i'm able to move Magisk onto the internal storage and TWRP is able to install it successfully.
Once i try to reboot, the "bootloader unlocked" warning screen shows, then the oneplus boot screen appears. It shuts down and reboots like this a second time, then the screen goes black and the front LED illuminates white and nothing happens. I can shut down the phone by holding the power button, then boot into fastboot manual using power + volume up. However if i try to boot the phone normally or boot into recovery mode, it repeats the same symptoms.
I'm unaware if I've soft or hard bricked the device. Like i mentioned i'm able to boot it into fastboot just fine and can get TWRP to come up with a boot command via ADB. But no matter how many times i try to install Magisk(I tried both v18 the guide mentions and the latest v19 from their site) i can't get it to boot.
I'm aware i also used an outdated version of TWRP(the one the guide mentions). i tried to flash twrp-3.3.0-1(latest version for dumpling) but cannot. I believe because a version of TWRP is already flashed on the device?
Can anyone help me out?
Hi all,
I'm facing the same issues as Josh and came seeking help, as well, so any help would be greatly appreciated! This is my first foray into Android coming from Windows 10 Mobile, which I'm still using two weeks after purchasing the 5T because of these issues. No matter what I do, I cannot get it to work and am now stuck in the same loop as mentioned above.
I'm attempting to install LineageOS and followed the instructions on its official site to a T, but have never been able to get it to boot into the OS. The only difference from the original poster's issue is that I'm not trying to root the device.
Thanks again for any help!
Josh Hex said:
....
I'm unaware if I've soft or hard bricked the device. Like i mentioned i'm able to boot it into fastboot just fine and can get TWRP to come up with a boot command via ADB.
....
i tried to flash twrp-3.3.0-1(latest version for dumpling) but cannot. I believe because a version of TWRP is already flashed on the device?
Can anyone help me out?
Click to expand...
Click to collapse
Hi, on my search how to flash TWRP revovery ROM I stumbled upon your post. With my first attempts, I did not even manage to get the official TWRP to run on my op5T - got always blue led - basically the same symptoms without trying to root. Meanwhile LOS works fine on my OP5T (I updated to the latest OOS then flashed and booted twrp-3.3.0-0-20190427-codeworkx-dumpling.img.).
ANYWAY my solution to unbrick and reinstall OxygenOS again was the...
... official unbrick tool - can be found in this forum when searching after (still cannot post links): OnePlus 5T Unbricking Tool
There is also another page here on the forum collecting different unbricking tools - although I am not aware how they are - since I used another source by googling for "How to Unbrick OnePlus 5T with OnePlus 5T Unbrick Tool (Unroot/Fix bootloop)".
Hope you get it running again, like I did.
Amix73 said:
Hi, on my search how to flash TWRP revovery ROM I stumbled upon your post. With my first attempts, I did not even manage to get the official TWRP to run on my op5T - got always blue led - basically the same symptoms without trying to root. Meanwhile LOS works fine on my OP5T (I updated to the latest OOS then flashed and booted twrp-3.3.0-0-20190427-codeworkx-dumpling.img.).
ANYWAY my solution to unbrick and reinstall OxygenOS again was the...
... official unbrick tool - can be found in this forum when searching after (still cannot post links): OnePlus 5T Unbricking Tool
There is also another page here on the forum collecting different unbricking tools - although I am not aware how they are - since I used another source by googling for "How to Unbrick OnePlus 5T with OnePlus 5T Unbrick Tool (Unroot/Fix bootloop)".
Hope you get it running again, like I did.
Click to expand...
Click to collapse
Thank you. I'll give it a shot and will let you guys know how it works out!

[Help] Oneplus 7T Qualcomm CrashDump Mode

Today I flashed the newest OOS 10.0.3. After I had flashed it+TWRP through Magisk and rebooted, Vanced Youtube was not able to be installed correctly. I have fixed this earlier by uninstalling the Youtube app through a root-uninstaller app. Then flash Vanced in Magisk, and reboot.
After doing this, my phone would only bootloop into TWRP/Fastboot. So I tried to boot into TWRP, flash OOS 10.0.3, TWRP then Magisk, in TWRP, but no success. The phone would just bootloop. So I tried my final attempt without having to wipe the whole phone - Flash an old backup (I think it was from October, probably OOS 10.0.1). After doing a full recovery in TWRP with the old backup, my phone boots into Qualcomm CrashDump Mode with a message displaying
dm-verity device corrupted Force Dump
Kernel_restart
Click to expand...
Click to collapse
By holding power+volume up for 10 seconds, my phone reboots displaying the warning message about my phone's bootloader being unlocked, then shows the quoted message above.
Could anyone please help me fix this?
---
Update:
So after trying to reboot for 15+ times, my phone somehow booted into TWRP. What would be the best step now?
Wipe all, flash OOS 10.0.3, Flash TWRP and Flash Magisk?
Which specific model do you have, region? Which twrp was used?
Werchio said:
Today I flashed the newest OOS 10.0.3. After I had flashed it+TWRP through Magisk and rebooted, Vanced Youtube was not able to be installed correctly. I have fixed this earlier by uninstalling the Youtube app through a root-uninstaller app. Then flash Vanced in Magisk, and reboot.
After doing this, my phone would only bootloop into TWRP/Fastboot. So I tried to boot into TWRP, flash OOS 10.0.3, TWRP then Magisk, in TWRP, but no success. The phone would just bootloop. So I tried my final attempt without having to wipe the whole phone - Flash an old backup (I think it was from October, probably OOS 10.0.1). After doing a full recovery in TWRP with the old backup, my phone boots into Qualcomm CrashDump Mode with a message displaying
By holding power+volume up for 10 seconds, my phone reboots displaying the warning message about my phone's bootloader being unlocked, then shows the quoted message above.
Could anyone please help me fix this?
---
Update:
So after trying to reboot for 15+ times, my phone somehow booted into TWRP. What would be the best step now?
Wipe all, flash OOS 10.0.3, Flash TWRP and Flash Magisk?
Click to expand...
Click to collapse
TWRP?! There are no working twrps for 7T series.
gpz1100 said:
Which specific model do you have, region? Which twrp was used?
Click to expand...
Click to collapse
Oneplus 7, EU region (guacamoleb). TWRP that I have managed to boot into is 3.3.1-70.
Aswin08 said:
TWRP?! There are no working twrps for 7T series.
Click to expand...
Click to collapse
My bad. It is a Oneplus 7 Guacamoleb, TWRP version is 3.3.1-70
Oneplus 7T Qualcomm CrashDump Mode
Hi Everyone,
My OnePlus 7T got stuck in QUALCOMM CRASHDUMP MODE.
First, i wanted to know the reason why this crash is happening as i can see many users reporting the same in many forums.
Note : It is my brand new phone purchased 2 days back.
Thanks !!
Restor your firmware with the msmtool
Here are the drivers that are installed on my PC ( I enabled hidden devices, in order to see them ) These were recognizing prior to " qualcomm crash dump" .
Now ADB,Fastbootd and Windows 10 / Mac OSx do not see my device, let alone recognize
It's possible that your phone is corrupted. Double freezer bag phone, express all excess air out from bag, zip both bags tightly, stick phone in freezer for 1 hr to deplete battery, then try buttons and msmtool

bricked my phone with locked bootloader, sideload successful but bootloop persist

Dear all,
I bricked my phone when i upgrade my pixel 2 xl to android 10 while never enabling the allow oem unlock form the developer mode.
I notice many similar thread but my case is a bit different since i can still acceaa fastboot and recovery, i tried to sideload the recovery ota as per official guide in google website, the process indicate that sideload is successful but my phone still stuck in bootloop.
Since i live in Indonesia, there is no available rma for me. Please help me, is anyone have any idea how to fix this, i've tried almost every tool i find in this forum such deuce script, all in one tool, etc. But still getting bootloop.
I'd like to get something straight...
When you upgraded to 10, did you do it through the stock Android System Updater or did you download an OTA/Full Factory image and flashed it yourself?
Also, you can boot to a twrp recovery and flash as I posted here in this topic. simplepinoi177 responded there also
Hi, i upgrade trough the ota (system updater), and i can not flash twrp as the bootloader is locked. I can not boot any img.
Have you tried factory reset in recovery?
Edmontonchef said:
Have you tried factory reset in recovery?
Click to expand...
Click to collapse
Yes I did, several times but still stuck in bootloop.

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