Hey guys. So i attempted the fingerprint restore guide and it didnt work. I bought the phone second hand and apparently the guy before me unlocked the phone. Long story short, i used the restore tool to bring the phone back to stock state. All was well until i rebooted. Then i got a qualcomm crashdump. I restored again to no avail. I used msmtool to read a couple partitions and it looks like persist partition got corrupted. Only problem is my bootloader is locked due to msm restore, and i cant boot into rom to enable oem unlocking to flash my persist backup. Is there anyway to bypass enable unlocking. Or is there a way to restore persist with msm? Or qualcomm tools? Such a simple problem. Just no tool to flash persist from edl mode. Other devices like oppo have this ability. Why doesnt msm tool flash important partitions????
Did you sell your phone yet? I got stuck with Qualcomm Crashdump, no one at OnePlus knows anything about it apparently. So before the phone tries to boot, hold power + volume up + volume down. Release just in time you'll be in fastboot mode. It's a little tricky but it stops that Crashdump from happening and then you can access your device via fastboot. Then it's just fastboot flash persist persist.img, and whatever else you need to save your phone. You should be able to unlock it again in fastboot then flash TWRP (or just a flashboot version of the ROM) and go about your restoration.
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Ok so, this isn't my first time flashing and returning to stock with phones, just the worst. Any help is appreciated.
I unlocked the bootloader, installed TWRP and tried to flash a few ROMS which were not working great so I went to go back to stock and then the **** show happened. Its the LO4 Model. I flashed stock recovery, Relocked the bootloader and tried the Force Flash Update method. Well now the phone is stuck in a boot loop(Cant power it down), cant boot to erecovery/ recovery -- I can get to fast boot mode but the FRP is locked so I can not do anything all commands fail with an error.
Any thoughts? I just need to get it back to stock OR a working ROM- I plan on selling this phone and My wife (it was her phone) has upgraded to a Galaxy S9. If I cant get it to work, I will post it on swappa as is for a cheap price
Thanks!
Same Issue
I did the same thing, however when in fastboot type fastboot oem unlock (put the code here) and this will unlock your bootloader. I did this I even managed to flash the stock system cust recovery and boot, but it doesnt boot into recovory, erecover, or even download mode to download the software from the sd card. Any ideas?
I tried that fastboot code and I get an error because of the FRP lock
Looking to sell my device but obviously I have modified the boot loader so it says the data may be insecure when booting up.
How to get rid of this annoying message??
You would have to lock bootloader for that.
To do so you can use msm tool.
An alternative would be to flash oos to both the slots. Make sure it boots. Also make sure that the recovery is stock. Then in fastboot type fastboot OEM lock.
But this method is a bit unreliable as it might brick your phone
Never unlocked or flashed a custom rom on my device since I got it a few years back so its always been on stock.
My phont turned off one night while I was using it aand sicne its been stuck in EDL mode.
Black screen won't boot etc.
Device Manager shows Qualcomm HD-USB QDLoader 9008
I tried diffrent roms and diffrent Mi Flash tools wioth no luck.
In the latest Mi flash I cant flash because of authorisation.
In previous versions I get Waiting for hello packet and Object referance not set to instance of object.
I tried the diffrent firehose files from online.
I am going to try Xiaomi.eu rom and see what happens.
But anyone had this before and can help me get the phone back up and running?
I had a custom ROM installed. One night I just typed "fastboot oem lock" without giving it much of a thought. Than, of course, the phone was bricked. It wouldn't boot and gave the error "The system was deleted" or something like this and since the bootloader was locked and all MiFlash couldn't flash.
The solution was simple. I just used Mi Unlock and it worked. The bootloader was unlocked again. I didn't think it would work.
My one plus is stuck in Qualcomm crash dump mode, It won't boot into recovery mode, but id does boot fastboot mode, I cant use adb to flash it because my bootloader is locked, adb cant recognize my device. I have tried QDL mode to use Guac msm download tool but it does no good, Can someone tell me what am I doing wrong?
Your best bet is to read up on the msm tread. A lot of answers can be found there.
With a locked BL , I can only suggest msm tool. Personally never got it to work myself but I unlocked my BL as soon as I got my phone so I used fastboot ROM to fix it. Best of luck
I've recently bricked my device trying to install LineageOS, long story short I had to use MSM Tool in order to flash a new, stock ROM. Since I did that I am unable to unlock the bootloader: everytime I do the phone bricks with this following Yellow message on the screen: "upgrade download failed please check your download flow is right". After that I have to use the MSM Tool again to unbrick the Yellow text.
Any ideata how I might unlock the bootloader? Aside from that, the phone works fine.
EDIT: I managed to fix this by OEM updating my device to Android 11 and *then* unlocking the bootloader. Another issue has arisen now, though: whenever I try to boot TWRP from fastboot, the phone reboots and gets stuck in the "Fastboot Mode" OnePlus logo screen. Would anyone know how to fix this, or maybe is there a way to root your phone without using a custom recovery?
Karellen11 said:
I've recently bricked my device trying to install LineageOS, long story short I had to use MSM Tool in order to flash a new, stock ROM. Since I did that I am unable to unlock the bootloader: everytime I do the phone bricks with this following Yellow message on the screen: "upgrade download failed please check your download flow is right". After that I have to use the MSM Tool again to unbrick the Yellow text.
Any ideata how I might unlock the bootloader? Aside from that, the phone works fine.
EDIT: I managed to fix this by OEM updating my device to Android 11 and *then* unlocking the bootloader. Another issue has arisen now, though: whenever I try to boot TWRP from fastboot, the phone reboots and gets stuck in the "Fastboot Mode" OnePlus logo screen. Would anyone know how to fix this, or maybe is there a way to root your phone without using a custom recovery?
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Yes you can ,,install thru boot loader with ADB and fastboot CMD. First you need to extract the boot.img from your oos rom, patch it in magisk app, then put it in your adb folder and run the cmd " fastboot flash boot boot.img .