OnePlus 8T a Complete Brick; help. - OnePlus 8T Questions & Answers

Hello! I'm very new to writing on forums so I'm hopefully doing it correctly. But I used to root OnePlus phones back when it was 2, 3 and 4. Things have changed a bit and I lost some knowledge of it. I rooted my OnePlus 8T using Magisk, no TWRP. I used the installation with a patched image on Magisk and my wifi, calling, and Android auto and sound all went out. I tried to revert it by putting the actual boot.img from extracting it using python, after downloading the payload.bin zipfile from OnePlus.com. I flashed it back and it went kaput. I was dumber than ever, and decided to use fastboot to erase the boots and recovery and flashed them back on and it still won't get passed the T-mobile logo. If I boot into recovery, I get the crashdump. Fastboot is fine, I can use that, but I haven't been able to achieve anything using it. I can get into edl, but I keep getting the Sahara communications failed error in the msmdownloadtool. I guess, if someone knows an answer, please help me out. If not, and it's not possible to fix, I just need second opinions to confirm whether it's fixable or not. I'd answer any help from you all. Thanks!

Fix the drivers on your computer and try MSM tool again.
Other than that, if fastboot is fine, try flashing a custom ROM and see if it boots, or you can also try flashing a full OTA of OOS.
This is totally fixable.

The OP in this thread has a suggestion regarding the Shara problem: Thread '[OP8T][OOS KB05AA/BA/DA] Unbrick tool to restore your device to OxygenOS' https://forum.xda-developers.com/t/...l-to-restore-your-device-to-oxygenos.4180837/

Related

My OP 7 PRO(GM21AA) is being completely stuck at Fastboot.

Hey,
It's been always a huge headache since when the Android 10 beta and stables updates are out to root and install twrp. I've tried almost every way possible but every-time, end up being stuck at TWRP or being half way rooted. This time I've tried doing that again :
* I was at OxygenOs Android 10 stable version,
* My bootloader was unlocked as well as OEM unlocking and usb debugging was on,
* I turned my phone into fastboot, and flash the twrp image as:
fastboot flash boot file.img
Then after my phone booted into TWRP since once or twice showing that 0mb internal storage, I flashed the Magisk.zip from adb command, and rebooted it.
Since then, my phone is completely stucked at fastboot, I've tried and followed almost every xda suggestion and everything, I've tried flashing flash.bat file, I've tried flashing stock recovery, In fact I've tried flashing complete fastboot Rom (with all in one app)and it everytime boots me into Fatboot.
Please, help me out guys. I'm stressed out of this problem since yesterday's night.
Let me know your suggestions.
Maybe THIS can help you?
Actually this thread helped me just now in the same situation:
https://forum.xda-developers.com/oneplus-7-pro/how-to/rom-stock-fastboot-roms-oneplus-7-pro-t3931424
That thread Jonsat mentioned didn't help me either, at all. Its not very clear that thread, telling in the thread to unbrick a OP7 to look at the thread of the OP6, there send them to OP5 and so on, eventually having to use a short written manual for the OP3 which mentions different versions and so on, its not the best for inexperienced people like me, it just send me on a wild chase downloading drivers and other things that eventually didnt work at all. Maybe I will try to rewrite it, as soon as I have enough experience to do so, i own this device for just a week.
Next time, read before you peform the install steps. It's nowhere like the older devices due to the A/B Recovery.
1. Use MSM Downloader to put you back to stock.
2. Upgrade to Android 10
3. Factory Reset to Clean out your phone (don't forget to unlock bootloader)
4. Initialize phone
5. Boot twrp (specific to Android Q + OP7 Pro)
6. Install TWRP and Magisk from TWRP
7. reboot and enjoy your rooted phone
lloydlim996 said:
Next time, read before you peform the install steps. It's nowhere like the older devices due to the A/B Recovery.
1. Use MSM Downloader to put you back to stock.
2. Upgrade to Android 10
3. Factory Reset to Clean out your phone (don't forget to unlock bootloader)
4. Initialize phone
5. Boot twrp (specific to Android Q + OP7 Pro)
6. Install TWRP and Magisk from TWRP
7. reboot and enjoy your rooted phone
Click to expand...
Click to collapse
What is MSM download tool? I'm going to try using All in One.
On searching for MSM tool, I found https://www.techoxygen.com/msm-download-tool/ is that correct?
Scratch this, MSMdownload is part of zip, I'll read through https://forum.xda-developers.com/showpost.php?p=79972789&postcount=50 and see how it goes

Fastboot Bootloop

I got my OnePlus 7 Pro today and tried to install Magisk by patching the boot.img. After trying to flash the patched image, I now have an issue where rebooting the devices leads me straight back to the bootloader. Trying to enter recovery also leads me straight back to the bootloader. I tried flashing the original boot.img I extracted from the OTA update file provided by OnePlus, but it still isn't working. I do not have TWRP or any custom recovery installed. Any help would be much appreciated. I noticed similar threads, however they all installed twrp, though I haven't yet as trying to run "fastboot boot twrp.img" always resulted in it booting to a screen saying "fastboot mode" which wasn't terribly helpful.
Edit: Its not the tmobile/5g/carrier version. I purchased it through OnePlus' website though I forget the exact model number.
Well, "fastboot boot twrp.img" does not work on all devices, sometimes you have to use: fastboot flash boot insert_twrp_img_name_here.img​Learned that the hard way, also use the unofficial twrp from mauronofrio.
Had the same problem as you have, and fixed it with that unofficial twrp.
Faith1105 said:
Well, "fastboot boot twrp.img" does not work on all devices, sometimes you have to use: fastboot flash boot insert_twrp_img_name_here.img​Learned that the hard way, also use the unofficial twrp from mauronofrio.
Had the same problem as you have, and fixed it with that unofficial twrp.
Click to expand...
Click to collapse
Did you need to completely revert to stock after the issue, or did flashing twrp fix the fastboot loop?
Edit: Trying to flash the stock fastboot rom currently as flashing twrp did nothing probably because me trying to fix it broke everything. Hopefully the stock rom will get everything back to a working state where I can try again, just this time flashing twrp.
Also using windows this time instead of linux....
mnbvcxzl90 said:
Did you need to completely revert to stock after the issue, or did flashing twrp fix the fastboot loop?
Edit: Trying to flash the stock fastboot rom currently as flashing twrp did nothing probably because me trying to fix it broke everything. Hopefully the stock rom will get everything back to a working state where I can try again, just this time flashing twrp.
Also using windows this time instead of linux....
Click to expand...
Click to collapse
Ok, so, trying to restore stock seems to have failed miserably.... any advice is most welcomed qq
OK.... so trying to unbrick the device using the msm stuff, I couldn't even make it to the downloader screen. After holding volume +/- and powering off, my screen is now black HOWEVER the phone gets detected by windows when I plug & unplug it. I have no idea what to do anymore. Someone please help
Figured I'd give the solution here in case someone else is in the same exact problem as me:
Follow the instructions over at https://forum.xda-developers.com/oneplus-7-pro/how-to/op7pro-collection-unbrick-tools-t3956595
I tried to de-brick it using the fastboot roms and all that, no dice. The only thing that seems to have worked was following the above and using the msm tool. Everything wiped, but hey, at least the phone is bootable again and now I have a way to fix it should this happen again. Yay for happy endings.
Edit: Also, following Faith1105's advice, flashing twrp to boot instead of trying to just boot it first worked successfully and from there I was able to install magisk.
Edit 2: Now wifi isn't working.... why life, why...
Edit 3: OK: EVERYTHING IS GOOD NOW. Twrp ran into a boot loop issue, used twrp to flash the most recent android 10 zip, rebooted and was greeted by stock recovery, then used that to wipe absolutely everything and reboot. After skipping through initial setup and making use wifi was working I rebooted again and this time tried booting twrp the way the usual instructions say to, this time it worked for whatever reason so once that started I used twrp to flash twrp's installer and magisk. It looks like everything is working correctly now. If you have the same issue maybe this stuff will work for you or maybe not: I don't know, and honestly I'm now brain dead lol.

Issues rooting my oneplus 7 pro / installing twrp properly

Dear oneplus community,
the recent days I wanted to update my stock system and keep my magisk at the same time. But somehow things messed up and lost my root status so I had to go back and flash magisk via twrp again. Since I didn't install twrp as default recovery, I had to boot manually into it.
Here is one of the first issues: the command "fastboot boot recovery.img" had an output line which said that the file is unauthorized. That is quite a common error so I booted into twrp via the all in one tool. Alright here I am in the recovery, ready to install magisk again as usual. Now I am facing the unable to mount vendor, storage and system error, so I fixed it by going to exfat and back to ext4 if I am correct.
Now somehow things messed up even more because at this point I was stuck in a boot loop. I managed to get out of it with the MSM back to stock method.
So in the end I got a stock android 10 oxygenos system I want to have magisk on it again. But when I try to get into the recovery mode sometimes itll work and sometimes it wont. Sometimes the command prompt gives me the unauthorized error message again and sometimes I get stuck in the fastboot mode screen with the oneplus logo.
Eventually I get into the recovery by using various methods e.g. all in one tool, but also here it happenes that the command prompt gives me the unauthorized error.
At this point everything seems to be okay with the installation of magisk (no errors, etc.). But when I'm trying to boot up from the recovery it says that I have no OS installed whether I have magisk installed or not. In a second and third try I additionally tried to flash a rom before installing magisk so I am sure to actually having a OS installed. But it still gives me the same error.
Any ideas how to deal with that, so that I can install magisk on my stock rom properly without having these weird issues.
At this point I'm losing the belief in myself because it shouldn't be that hard at all, since I already rooted my previous phones like mi6 the oneplus 6 haswell..
I will post error codes later.
Thank you.
I actually just started a thread about installing TWRP and magisk yesterday. I am having the same problem installing. I assume it's the versions of each file that I am using that are incompatible, because I am following the instructions as written.
https://forum.xda-developers.com/oneplus-7-pro/help/current-twrp-magisk-unlocked-oneplus-7-t4094307
At this point, since no one seems to know what the problem is, I'm just gonna stay on stock, unlocked bootloader, no root. Which defeats the purpose of even having an unlocked bootloader, but at least I'll have functioning phone. If you need to install an OS on your phone, follow this method.
https://forum.xda-developers.com/oneplus-7-pro/how-to/bricked-oneplus-7-pro-stuck-fastboot-t3972469
This will get you back to factory settings, unlocked bootloader.
+1 here, actually quite confused how to get TWRP properly so it sticks, amd confused about two slots situation.
Now going back to stock via MSM Method. Im in a bootloop/bricked device again.
I'll try to do it one more time and i'll document my steps detailed, so more experienced users can follow the steps better.
Silencex33 said:
Now going back to stock via MSM Method. Im in a bootloop/bricked device again.
I'll try to do it one more time and i'll document my steps detailed, so more experienced users can follow the steps better.
Click to expand...
Click to collapse
Get twrp from here https://forum.xda-developers.com/on...nt/recovery-unofficial-twrp-recovery-t3932943. 3.3.1-79
im about to try this on my tmob oneplus 7 pro, any suggestions as to if I should wait for new updates ?

seeking advice, new to oneplus.

So I've got a US unlocked device running firmware version KB2005_15_200918. I've rooted it with magisk.
Few days ago I got an update notification, to update to 11.0.1.2.KB05AA. So, thinking I could do it like a pixel, I unrooted, installed the update and re rooted installing to the inactive slot (per @topjohnwu's instructions). On reboot I got stuck on the qualcomm kernel crash screen, leaving my slot_A install hosed.
After some tinkering, I was able to get up and running on slot B. However, slot A is hosed up with the update. (system update says failed, reboot to try again, when i do, hoses back up. Probably because it's setting the active slot to A again).
I've tried re-flashing the KB05AA stock boot image someone dd' and shared on here with no luck. And I don't want to use the unbrick tool, and ending up having to backup/restore all my data.
What are my options at this point to fix slot A, and take the update again? I'm coming from a pixel 3, and know nothing about flashing the factory images on this device or the best way to recover from this. Any advice would be appreciated.
-Michael_ said:
So I've got a US unlocked device running firmware version KB2005_15_200918. I've rooted it with magisk.
Few days ago I got an update notification, to update to 11.0.1.2.KB05AA. So, thinking I could do it like a pixel, I unrooted, installed the update and re rooted installing to the inactive slot (per @topjohnwu's instructions). On reboot I got stuck on the qualcomm kernel crash screen, leaving my slot_A install hosed.
After some tinkering, I was able to get up and running on slot B. However, slot A is hosed up with the update. (system update says failed, reboot to try again, when i do, hoses back up. Probably because it's setting the active slot to A again).
I've tried re-flashing the KB05AA stock boot image someone dd' and shared on here with no luck. And I don't want to use the unbrick tool, and ending up having to backup/restore all my data.
What are my options at this point to fix slot A, and take the update again? I'm coming from a pixel 3, and know nothing about flashing the factory images on this device or the best way to recover from this. Any advice would be appreciated.
Click to expand...
Click to collapse
Use msm tool or reflash stock via fastboot. Either way you gotta wipe one way or another.
Or maybe..
Try fastboot erase boot_a
Then fastboot flash boot_a boot.img. With the kernel you had on slot_a. Hopefully you backed it up prior to this. If not, see my first recommendation.
Thanks, I'll give my kernel backup a shot.

Question Deleted recovery mode, need boot.img files plz

please help!
My friend flashed Lineage OS onto my OnePlus 9 5G to try and fix a fingerprint reader problem. It didn't fix the problem so they tried to flash Oxygen 13 back onto the phone. Unfortunately, in Lineage recovery mode, they clicked format and it deleted A and B partitions. The phone now has no recovery mode, which we need to flash any OS onto the phone. The phone now is basically soft bricked and has no OS. We are trying to get oxygen 13 global back on to the phone. We are looking for boot.img files. The phone is rooted and the bootloader is unlocked.
We hav already read through most of the threads on this topic and OnePlus in general. Any recommendations would be helpful, but if you can upload your boot.img files that would be even better. Plz help because this soft bricked phone is STRESSING me.
Have you tried to use an MSM back to stock? That will reflash your partitions. It is essentially plug and click a couple times afaik. Look for an MSM toolkit, but make sure it's the right one for your device region/carrier. Once you MSM to stock you can update to latest OOS. Happy hunting!
Edit: to clarify, using MSM toolkit will get you back to stock; if you are unlocked and rooted I'm assuming you already have drivers installed and working. You do not need anyone to upload their boot.img, MSM will restore your boot image, as well as everything else needed to get oxygen os back on your device.

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