The device does not run on black screen - OnePlus 8T Questions & Answers

Greetings to all
After flash rom on fastboot and rebooting the device, the device entered the recovery, but the recovery is not working just black screen
I have pressed the power button and volume down button for a long time but nothing works
Currently the device is completely damaged!!!
I want to get into the bootloader in any way

Power up and connect to a Windows PC, what does the device manager display?

ULTRAJC said:
Power up and connect to a Windows PC, what does the device manager display?
Click to expand...
Click to collapse
I was trying to connect it to a Mac
It is now connected to a Windows device and the device recognizes it
""Qualcomm CDMA Technologies MSM QUSB_BULK_CID:0412_SN10E679A""

twuijri said:
I was trying to connect it to a Mac
It is now connected to a Windows device and the device recognizes it
""Qualcomm CDMA Technologies MSM QUSB_BULK_CID:0412_SN10E679A""
Click to expand...
Click to collapse
I'm not sure what your ROM installation process was, however at this point sounds like you need to use the MSM tool and recover your phone.
Unbrick tool to restore your device to OxygenOS <-- Use this thread.
Also from that thread:
Go to device manager and make sure your phone shows up as QDLOADER 9008.
If it shows up as QHUSB_BULK, it means Qualcomm driver wasn't installed automatically by Windows Update.
Click to expand...
Click to collapse
Drivers are in that thread.
Screen will be blank / off during this process when you are in this mode (what you are seeing). At least that is what I believe you are describing / seeing.

OhioYJ said:
I'm not sure what your ROM installation process was, however at this point sounds like you need to use the MSM tool and recover your phone.
Unbrick tool to restore your device to OxygenOS <-- Use this thread.
Also from that thread:
Drivers are in that thread.
Screen will be blank / off during this process when you are in this mode (what you are seeing). At least that is what I believe you are describing / seeing.
Click to expand...
Click to collapse
Thank you, the device has come back to life after using ""MsmDownloadTool Global_KB05AA"" my phone ""oneplus 8T KB2000""
After the device worked, I ran into another problem ""QUALCOMM CrashDump Mode""
Is there a MsmDownloadTool for China devices oneplus 8T KB2000?
I'm so sorry for the problems I'm raising but I need help
Thank you for your time and help in solving other people's problems

twuijri said:
Thank you, the device has come back to life after using ""MsmDownloadTool Global_KB05AA"" my phone ""oneplus 8T KB2000""
After the device worked, I ran into another problem ""QUALCOMM CrashDump Mode""
Is there a MsmDownloadTool for China devices oneplus 8T KB2000?
I'm so sorry for the problems I'm raising but I need help
Thank you for your time and help in solving other people's problems
Click to expand...
Click to collapse
Some_Random_Username said:
Why is my device getting in Qualcomm crashdump mode in spite of a successful download?
Your unit was most likely manufactured after March 9th 2021, see https://forum.xda-developers.com/t/...ice-to-oxygenos.4180837/page-14#post-84789741 for reference. You therefore need to use HydrogenOS 11.0.7.12 MSM to recover your device linked at https://www.oneplusbbs.com/thread-5886794-1.html (mirrored at https://mega.nz/file/O8UySbgR#cXGlHkdA_7CYEhKIrek9zzAEwJ7Vx1D5BZdemnPlvGE by @pikatenor ). Getting new OxygenOS MSM tools is nowadays impossible unless you own the device it is meant for, so OP will not be updated to add new OxygenOS MSM tools allowing to workaround this issue. Feel however free to reach out to me in DM if you would like to get told how to maximise your chances to obtain one.
Click to expand...
Click to collapse

Thank you from the heart. I read the entire topic and tried all the methods. It took me 10 hours to work
I was so frustrated that I thought about buying a new device
Only 10 hours after knowing the solution of MsmDownloadTool There was a whole day after the device died
Thank you, thank you for everything you do to serve others
""All user from XDA ULTRAJC & OhioYJ""
The device has returned to work

Related

help !. Bricked OP8 t-mobile unlocked

Hey guys. I need some help. this is my wrong doing !!
I got a network unlocked T mobile which I started using with AT&T. Today I received the unlock code from T mobile to unlock bootloader which I did. then I I installed TWRP and Magisk without any issues. then I tried to fix the persis.img coz fingerpritn is not working. it didnt work so I left it alone. But I dont know why I wiped cache, data and then phone got stuck at boot loop. (no backup). I tried to install using MSM tool but it didnt work. MSM tool was not detecting the phone. then in TWRP I clicked on EDL and now the phone screen is blank. tried every possible combination of keys but no luck. was doing all this on windows 10. any help would be greatly appreciated. thanks
kool_am said:
Hey guys. I need some help. this is my wrong doing !!
I got a network unlocked T mobile which I started using with AT&T. Today I received the unlock code from T mobile to unlock bootloader which I did. then I I installed TWRP and Magisk without any issues. then I tried to fix the persis.img coz fingerpritn is not working. it didnt work so I left it alone. But I dont know why I wiped cache, data and then phone got stuck at boot loop. (no backup). I tried to install using MSM tool but it didnt work. MSM tool was not detecting the phone. then in TWRP I clicked on EDL and now the phone screen is blank. tried every possible combination of keys but no luck. was doing all this on windows 10. any help would be greatly appreciated. thanks
Click to expand...
Click to collapse
So it turns out its not a hard brick. I'm stuck on TWRP. I'm able to get to fastboot. I tried to install Oxygen OS thru fastboot but the PC is not detecting the phone in fastboot. Mac detects it but I believe all the stock Roms are for PC use. I did try it on my MAc and was able to open a terminal window inside the Oxygen OS folder but then the fastboot device command is not found. any help would be greatly appreciated. I installed SDK and ADB drivers on PC but in device manager the device still only shows as Android device with no drivers. !! thanks
kool_am said:
So it turns out its not a hard brick. I'm stuck on TWRP. I'm able to get to fastboot. I tried to install Oxygen OS thru fastboot but the PC is not detecting the phone in fastboot. Mac detects it but I believe all the stock Roms are for PC use. I did try it on my MAc and was able to open a terminal window inside the Oxygen OS folder but then the fastboot device command is not found. any help would be greatly appreciated. I installed SDK and ADB drivers on PC but in device manager the device still only shows as Android device with no drivers. !! thanks
Click to expand...
Click to collapse
Solved !
solved how? i greatly would like to know how to flash from fastboot, i know that isnt what this thread was about but im having the exact same problems you are with msm. i can see the phone in fastboot but i have no idea how to flash or what to flash from there. I can get into recovery but i cant copy anything over to the phone and the drivers dont show up for adb. so i pretty much ONLY have fastboot and dont know what to do! 2 days since the phone been down and im lost AF
JCroffut said:
solved how? i greatly would like to know how to flash from fastboot, i know that isnt what this thread was about but im having the exact same problems you are with msm. i can see the phone in fastboot but i have no idea how to flash or what to flash from there. I can get into recovery but i cant copy anything over to the phone and the drivers dont show up for adb. so i pretty much ONLY have fastboot and dont know what to do! 2 days since the phone been down and im lost AF
Click to expand...
Click to collapse
Can msm detect the phone when connected in fastboot. Also check device manager in pc to make sure it detects the phone as qualcomm device. Otherwise msm will not work.
Download msm. Turn phone off. Connect phone to pc. Open msm. Press start. Press volume down and power button on phone. It should be detected by msm and should start flashing the software.
Standby....
When plugged in the phone in EDL it shows
QUSB_BULK_CID0412 with an exclamation mark inside a yellow triangle
When i plugged in the phone and open fastboot it shows
Android with an exclamation point inside a yellow triangle
I booted up msm, clicked other, clicked start, pressed volume down and volume up and plugged it in. still says waiting for device to connect. ive also tried this with a number of keys being help, ive tried to boot from twrp straight into edl mode, none of which works
which all says to me its a driver issue of some kind, but for 3 days ive been slaving away on xda and cannot for the life of me figure out where to get the drivers.
JCroffut said:
Standby....
When plugged in the phone in EDL it shows
QUSB_BULK_CID0412 with an exclamation mark inside a yellow triangle
When i plugged in the phone and open fastboot it shows
Android with an exclamation point inside a yellow triangle
I booted up msm, clicked other, clicked start, pressed volume down and volume up and plugged it in. still says waiting for device to connect. ive also tried this with a number of keys being help, ive tried to boot from twrp straight into edl mode, none of which works
which all says to me its a driver issue of some kind, but for 3 days ive been slaving away on xda and cannot for the life of me figure out where to get the drivers.
Click to expand...
Click to collapse
It is a driver issue for sure. When connected device manager should detect as qualcomm hd9008.......
kool_am said:
It is a driver issue for sure. When connected device manager should detect as qualcomm hd9008.......
Click to expand...
Click to collapse
i figured that, i am at a complete loss as to where to find the drivers. i actually might need you to hold my hand on this one a tiny bit because im about to smash the phone on the ground and say someone stole it. thats where i am with this phone haha
JCroffut said:
i figured that, i am at a complete loss as to where to find the drivers. i actually might need you to hold my hand on this one a tiny bit because im about to smash the phone on the ground and say someone stole it. thats where i am with this phone haha
Click to expand...
Click to collapse
qualcomm hs-usb qdloader 9008 - this is the exact name of the driver.
Try this link: https://forum.xda-developers.com/t/guide-fixing-hard-bricks-qualcomm-hs-usb-qdloader-9008.3403868/
kool_am said:
qualcomm hs-usb qdloader 9008 - this is the exact name of the driver.
Try this link: https://forum.xda-developers.com/t/guide-fixing-hard-bricks-qualcomm-hs-usb-qdloader-9008.3403868/
Click to expand...
Click to collapse
standby ill read through it now. we also have 2 different threads going so i can combine them if thats easier for you
kool_am said:
qualcomm hs-usb qdloader 9008 - this is the exact name of the driver.
Try this link: https://forum.xda-developers.com/t/guide-fixing-hard-bricks-qualcomm-hs-usb-qdloader-9008.3403868/
Click to expand...
Click to collapse
Only download the qualcomm driver from this link. Or search for it online.
I have spent much more time than you trying to figure this out. I have a pc and Mac both. Mac is not compatible with a lot of the software and my pc usb ports are all bad. Point being, leave it alone for a day or so. Come back at it with a fresh start and fresh mind.
kool_am said:
Only download the qualcomm driver from this link. Or search for it online.
I have spent much more time than you trying to figure this out. I have a pc and Mac both. Mac is not compatible with a lot of the software and my pc usb ports are all bad. Point being, leave it alone for a day or so. Come back at it with a fresh start and fresh mind.
Click to expand...
Click to collapse
i hear that. after 3 days of non stop working at it im pretty sure im just not smarter than the phone today lol. looks like this phone is now stolen and going into a trash can lol
JCroffut said:
i hear that. after 3 days of non stop working at it im pretty sure im just not smarter than the phone today lol. looks like this phone is now stolen and going into a trash can lol
Click to expand...
Click to collapse
If I were you, I wouldn't throw the phone away. Like I said it's a simple issue of driver. Install the correct driver and make sure you see it as qualcomm device in device manager. Trust me, from then on, it's just a matter of a few clicks.
I unbricked my phone to t mobile and then converted to global rom without any issues.
kool_am said:
If I were you, I wouldn't throw the phone away. Like I said it's a simple issue of driver. Install the correct driver and make sure you see it as qualcomm device in device manager. Trust me, from then on, it's just a matter of a few clicks.
I unbricked my phone to t mobile and then converted to global rom without any issues.
Click to expand...
Click to collapse
i sent you a private convo on here if thats ok so i dont spam the forum! You may be able to help me out if i could borrow a few minutes of your time!
JCroffut said:
i hear that. after 3 days of non stop working at it im pretty sure im just not smarter than the phone today lol. looks like this phone is now stolen and going into a trash can lol
Click to expand...
Click to collapse
i was definatly kidding tho this is my only phone and i have to solve this problem lol
I'm not sure if you have read this thread already. I messed up my phone a couple days ago as well and follow the steps there and was able to MSM my phone back to stock.
[OP8][OOS TMO 55CB] Unbrick tool to restore your device to OxygenOS
Disclaimer: By attempting any of the processes listed in this thread you accept full responsibility for your actions. I will not be held responsible if your device stops working, catches fire, or turns into a hipster and claims to have been...
forum.xda-developers.com

Question Super-Hard Bricked OnePlus 9

I have an extremely big problem, maybe someone could help me here?
So today I tried to flash diffrent OOS version on my OnePlus 9, I did it with fastboot, after the command "fastboot reboot fastboot" the screen on the phone went blank and there was a sound on the computer as if the phone was still connecting and disconnecting. Now, the phone does not respond to the buttons, the charger, I cannot enter the fastboot, only the EDL mode works, but I cannot use the MSM because it does not detect the phone, I get the "sahara communication failed" notification all the time, previously the same MSM version was working.
Probably the most important thing is that it turned out that the OOS I tried to flash was actually ColorOS, I didn't pay attention to it, I don't know how it happened.
I feel like an idiot, I'm afraid that I will not save this phone myself and that the repair service will also not accept it under warranty, any suggestions?
MSM cannot recognize your phone aka. Sahara Connection error? Check this.
Hi! Today i successfully bricked my OP9 to the point where the global MSM tool couldn't recognize it anymore. I tried everything, from different MSM tools to this thread. Nothing. Then, Deus ex Machina, @flameteam recommended me to try...
forum.xda-developers.com
Rayekk said:
I have an extremely big problem, maybe someone could help me here?
So today I tried to flash diffrent OOS version on my OnePlus 9, I did it with fastboot, after the command "fastboot reboot fastboot" the screen on the phone went blank and there was a sound on the computer as if the phone was still connecting and disconnecting. Now, the phone does not respond to the buttons, the charger, I cannot enter the fastboot, only the EDL mode works, but I cannot use the MSM because it does not detect the phone, I get the "sahara communication failed" notification all the time, previously the same MSM version was working.
Probably the most important thing is that it turned out that the OOS I tried to flash was actually ColorOS, I didn't pay attention to it, I don't know how it happened.
I feel like an idiot, I'm afraid that I will not save this phone myself and that the repair service will also not accept it under warranty, any suggestions?
Click to expand...
Click to collapse
See link below. Worked for me I was in same position.
ctonylee1965 said:
See link below. Worked for me I was in same position.
Click to expand...
Click to collapse
Thank you very much! Tbh I can't understand how and why it works, but it worked!
Rayekk said:
Thank you very much! Tbh I can't understand how and why it works, but it worked!
Click to expand...
Click to collapse
Make sure you look at the rest of the instructions to get back on global from Indian.
Rayekk said:
Thank you very much! Tbh I can't understand how and why it works, but it worked!
Click to expand...
Click to collapse
Brother what is your phone model is it Chinese (Le2110)? or another model ?
bro i have the same issues , did u found any solution & can you help me plz
See if these steps work for you: (last post)
Display becomes unresponsive after OOS 12 update
I upgraded my OnePlus 9 LE2115 from OOS 11 to OOS 12, and every time the phone reboots after completing the update, the touch screen is completely unresponsive, so it stays stuck at the lock screen forever. I upgraded from OOS 11.2.10.10 to OOS...
forum.xda-developers.com
Hey, i have hardbricked my OnePlus 9 and now i have the connect and disconnect-problem in the EDL-Mode. My Model is a Lahaina and i hope it is the same like a Lemonade or a OnePlus 9. I was on the latest Android 12 for the OP 9 before it gets bricked. How i bricked my phone: First i have unlocked the Bootloader and after that i was trying to boot into TWRP. The bootscreen from TWRP comes and the screen gets black and then into boot dump mode. okay, then i installed this: https://forum.xda-developers.com/t/fastboot-rom-pc-required-op9-stock-oos-11-2-2-2aa.4275727/unread and the message <awaiting any device> shows up and i disconnected my phone. After that my phone just shows black and on the pc it just shows up the "QDLoader" (yes, the driver is installed) . How i could bring my phone back to life and fix the partitionproblem/connect & disconnect problem. The MSM just shows "Status of Connection: N/A" and "Waiting for device". I am using an Laptop with Windows 10 on it and an intel chipset.
I think i have killed the partitioning of the oneplus by downgrading from A 12 to A 11. Thanks for your help. By the way: I have downloaded the MSM with Indian OS and I have still the same problem.
I´ve got exactly the same situation and problem as DerBaLu841... Anything to do for now or is the OP9 finally hard bricked now..?
kischde said:
I´ve got exactly the same situation and problem as DerBaLu841... Anything to do for now or is the OP9 finally hard bricked now..?
Click to expand...
Click to collapse
Check this out:
MSM cannot recognize your phone aka. Sahara Connection error? Check this.
Hi! Today i successfully bricked my OP9 to the point where the global MSM tool couldn't recognize it anymore. I tried everything, from different MSM tools to this thread. Nothing. Then, Deus ex Machina, @flameteam recommended me to try...
forum.xda-developers.com
DerBaLu841 said:
Check this out:
MSM cannot recognize your phone aka. Sahara Connection error? Check this.
Hi! Today i successfully bricked my OP9 to the point where the global MSM tool couldn't recognize it anymore. I tried everything, from different MSM tools to this thread. Nothing. Then, Deus ex Machina, @flameteam recommended me to try...
forum.xda-developers.com
Click to expand...
Click to collapse
Hi! Have you telegram? Can I ask to you help with the method you posted?

BRICKED ONEPLUS 8T FOR NO REASON

GUYS I NEED SOME URGENT HELP.
I bricked my phone accidentally by trying to relock my Oneplus 8t coming from EVOLUTION X. It's showing me "Your device is corrupt. It can't be trusted and will not boot". I really don't want to hand it back to customer support since it's my only phone. If someone can give me a solution, it would be great of them.
Thank you very much.
sniper_rifle said:
GUYS I NEED SOME URGENT HELP.
I bricked my phone accidentally by trying to relock my Oneplus 8t coming from EVOLUTION X. It's showing me "Your device is corrupt. It can't be trusted and will not boot". I really don't want to hand it back to customer support since it's my only phone. If someone can give me a solution, it would be great of them.
Thank you very much.
Click to expand...
Click to collapse
I would recommend using the msm tool for the correct region (check the guide forum for links) that will wipe your device and restore it to stock.
Qnorsten said:
I would recommend using the msm tool for the correct region (check the guide forum for links) that will wipe your device and restore it to stock.
Click to expand...
Click to collapse
I have already tried using the MSM tool. I can't even get my phone into recovery mode, how I am suppposed to use that application then?
You sure you can't get into edl mode by following these instructions? It is almost impossible to hardbrick a OnePlus 8t so it can't access edl mode
Power your device off.
Let it cool down for one minute.
Hold both volumes in to get in Qualcomm EDL mode and the screen will stay black. While holding, plug in the USB cable from your phone to your computer. Let volumes go alter plugged in.
Wait some time (should not be longer than ~300 seconds).
Enjoy your brand new device.
[OP8T][OOS KB05AA/BA/DA] Unbrick tool to restore your device to OxygenOS
Disclaimer: By attempting any of the processes listed in this thread you accept full responsibility for your actions. I will not be held responsible if your device stops working, catches fire, or turns into a hipster and claims to have been...
forum.xda-developers.com
Qnorsten said:
You sure you can't get into edl mode by following these instructions? It is almost impossible to hardbrick a OnePlus 8t so it can't access edl mode
Power your device off.
Let it cool down for one minute.
Hold both volumes in to get in Qualcomm EDL mode and the screen will stay black. While holding, plug in the USB cable from your phone to your computer. Let volumes go alter plugged in.
Wait some time (should not be longer than ~300 seconds).
Enjoy your brand new device.
[OP8T][OOS KB05AA/BA/DA] Unbrick tool to restore your device to OxygenOS
Disclaimer: By attempting any of the processes listed in this thread you accept full responsibility for your actions. I will not be held responsible if your device stops working, catches fire, or turns into a hipster and claims to have been...
forum.xda-developers.com
Click to expand...
Click to collapse
No I just tried that. It doesn't work. Any other tips please?
If msm tool won't work and if If you can't access fastboot to try and flash a rom there. I think contacting customer service and sending it in for repair is your only choice.
sniper_rifle said:
No I just tried that. It doesn't work. Any other tips please?
Click to expand...
Click to collapse
Keep trying... It can be really tricky to get the timing right. It took me a while to finally get it connected when I used the MSM tool. I can't remember what finally did the trick, but if I remember correctly, the phone screen was still black so it didn't seem like anything was happening but the computer showed it connected.
Hello. Just an update, I managed to get my phone back to life by using the MSM tool and installing the Qualcomm drivers (this part which I hadn't done before) and it worked out. Thank you very much. I love the OnePlus community!

Oneplus 8T HARD BRICKED ! HELP !!!

Hello everyone,
History : So i was using Rice driod on my OP 8T peacefully and i got an update on the rom. i installed the update via local update of the rom and after reboot the phone never booted back. i tried all button combos to make to boot anything like fastboot or recovery etc but nothing worked.
Problem : While connecting to PC the device shows as "Qualcomm HS Diagnostic 900E" I know it should show as 'qualcomm hs loader 900' something which indicates EDL state. So i can't perform MSM. There are not port showing in MSM either. Its blank. Even after forcefully trying to boot EDL ( button combos ), it always boots back to same state.
Fixes i have tried : Reinstalled qualcomm drivers many times, also tried many other versions of MSM including the Hydrogen OS one. No solution.
Can anyone please help me with this situation. Its been few days now and i have really no hope left with the device.
alp47470 said:
Hello everyone,
History : So i was using Rice driod on my OP 8T peacefully and i got an update on the rom. i installed the update via local update of the rom and after reboot the phone never booted back. i tried all button combos to make to boot anything like fastboot or recovery etc but nothing worked.
Problem : While connecting to PC the device shows as "Qualcomm HS Diagnostic 900E" I know it should show as 'qualcomm hs loader 900' something which indicates EDL state. So i can't perform MSM. There are not port showing in MSM either. Its blank. Even after forcefully trying to boot EDL ( button combos ), it always boots back to same state.
Fixes i have tried : Reinstalled qualcomm drivers many times, also tried many other versions of MSM including the Hydrogen OS one. No solution.
Can anyone please help me with this situation. Its been few days now and i have really no hope left with the device.
Click to expand...
Click to collapse
complete noob here but I have heard someone said they fixed using indian msm tool, maybe I am wrong, idk
LR7875 said:
complete noob here but I have heard someone said they fixed using indian msm tool, maybe I am wrong, idk
Click to expand...
Click to collapse
I have tried MSM already no fix as it doesn't detect the device in EDL state. Hence no port shows up
alp47470 said:
I have tried MSM already no fix as it doesn't detect the device in EDL state. Hence no port shows up
Click to expand...
Click to collapse
does the computer even detect your device? what name of the device does it show up
alp47470 said:
I have tried MSM already no fix as it doesn't detect the device in EDL state. Hence no port shows up
Click to expand...
Click to collapse
1st, make sure your device is connected and recognized as 9008 HS-USB QDLoader.
2nd, try using MSM of 9R Ported ROM for 8T, it works in almost every situation
LinhBT said:
1st, make sure your device is connected and recognized as 9008 HS-USB QDLoader.
2nd, try using MSM of 9R Ported ROM for 8T, it works in almost every situation
Click to expand...
Click to collapse
The 1st one is main problem. It doesn't recognise as 9008 HS-USB QDLoader, it always keeps showing to 900E mode.
just a long shot, as i am on a 5t not the 8, but has windoze perhaps updated and "fixed" the usb driver on your behalf?
my 5t was invisible after unlocking, until i forced windoze to update the driver to an unsigned (working) version
[EOL][11.0][OFFICIAL] LineageOS 18.1 for Oneplus 5 & 5T
Is there anybody out there!🤭
forum.xda-developers.com
alp47470 said:
The 1st one is main problem. It doesn't recognise as 9008 HS-USB QDLoader, it always keeps showing to 900E mode.
Click to expand...
Click to collapse
That's a total different device state, it's on Diag mode, not EDL mode. Try to turn off the device COMPLETELY, then either using hardkeys ( VOL + VOL - press and hold at the same time, plug in cable ) or use Deep-Fash cable to put the device into correct EDL 9008 mode.
So, guys i was finally able to fix the device by EDL point method. Somehow the device was able to boot to edl anyhow. The drivers were correct and so was the cable etc, Thank you all for still helping me.
So relieved so my 8T alive again.
alp47470 said:
So, guys i was finally able to fix the device by EDL point method. Somehow the device was able to boot to edl anyhow. The drivers were correct and so was the cable etc, Thank you all for still helping me.
So relieved so my 8T alive again.
Click to expand...
Click to collapse
Could you please be more specific as to how you got it to connect in EDL mode - it would help others who end up in the same situation.
BillGoss said:
Could you please be more specific as to how you got it to connect in EDL mode - it would help others who end up in the same situation.
Click to expand...
Click to collapse
As you know already the phone wasn't able to go to EDL mode no matter what i did. I really don't know what caused the issue and why it wasn't booting even after using button combos (both vol) or to power off manually (vol up and power) it was went to Diagnostic Mode.
Here's what i did :
-Went to local shop for removing the back panel by those heating machines
-Unplug battery
-Then used the EDL points on the motherboard to force the device to boot EDL (this method is more seen in Mi , Redmi phones)
-The device immediately recognised by just one tap on "enum" now.
Thats how i flashed the OS, plugged the battery and panel, reboot
Thanks for sharing that - much appreciated.
alp47470 said:
As you know already the phone wasn't able to go to EDL mode no matter what i did. I really don't know what caused the issue and why it wasn't booting even after using button combos (both vol) or to power off manually (vol up and power) it was went to Diagnostic Mode.
Here's what i did :
-Went to local shop for removing the back panel by those heating machines
-Unplug battery
-Then used the EDL points on the motherboard to force the device to boot EDL (this method is more seen in Mi , Redmi phones)
-The device immediately recognised by just one tap on "enum" now.
Thats how i flashed the OS, plugged the battery and panel.
Click to expand...
Click to collapse
So the localshop is using Testpoint trick. It has the same effect as using Deep-Flash cable but more trustable, only that u will have to open the back cover.
Congrats on successfully rescue the device mate
LinhBT said:
So the localshop is using Testpoint trick. It has the same effect as using Deep-Flash cable but more trustable, only that u will have to open the back cover.
Congrats on successfully rescue the device mate
Click to expand...
Click to collapse
Thanks bro. Actually the shop kepper didn't do anything. Instead he was saying that the battery was damaged or something (probably scamming me) or he actually didn't had any idea for real. I had read about EDL point thing, so i just asked the shopkeeper to just remove the back panel. Rest i came home and did everything lol. NGL it was scary as hell.
In the process i also discovered that 8T and 9R being mostly identical also have same EDL points on motherboard. Same positioning too.
alp47470 said:
Thanks bro. Actually the shop kepper didn't do anything. Instead he was saying that the battery was damaged or something (probably scamming me) or he actually didn't had any idea for real. I had read about EDL point thing, so i just asked the shopkeeper to just remove the back panel. Rest i came home and did everything lol. NGL it was scary as hell.
In the process i also discovered that 8T and 9R being mostly idenical also have same EDL points on motherboard. Same positioning too.
Click to expand...
Click to collapse
Ah I see, same here when I 1st try the Testpoint trick few years back, scary as hell cuz that was the only phone I had at that time ))))
Btw, yes, 9R and 8T shares almost everything besides of SOC's name ( Snap870 in fact is Snap865 OCing ). That's why I told u to use the MSM Tool of 9R port ROM for 8T, it passes almost every errors u may face when using MSM of 8T itself!
alp47470 said:
As you know already the phone wasn't able to go to EDL mode no matter what i did. I really don't know what caused the issue and why it wasn't booting even after using button combos (both vol) or to power off manually (vol up and power) it was went to Diagnostic Mode.
Here's what i did :
-Went to local shop for removing the back panel by those heating machines
-Unplug battery
-Then used the EDL points on the motherboard to force the device to boot EDL (this method is more seen in Mi , Redmi phones)
-The device immediately recognised by just one tap on "enum" now.
Thats how i flashed the OS, plugged the battery and panel, reboot
Click to expand...
Click to collapse
Hi, I'm the same boat after a bad flash of OSS12, hard brick, black screen, not detected in Windows devices manager, no vibration with every button combination ...
Could you share where the edl points are on the OnePlus 8T motherboard please ?
I would be eternally grateful!
NZX-DeSiGN said:
Hi, I'm the same boat after a bad flash of OSS12, hard brick, black screen, not detected in Windows devices manager, no vibration with every button combination ...
Could you share where the edl points are on the OnePlus 8T motherboard please ?
I would be eternally grateful!
Click to expand...
Click to collapse
Here.. hope it helps

OnePlus 7 Pro stuck in EDL

Hello . I have OnePlus 7 pro I update it to android 12 and the next day something went wrong and my phone started an error Qualcomm crash dump something... Now it is stuck in EDL . Display none , power key And volume key works but keep booting in EDL even without connecting the USB cable . I flash the firmware with msm tool firmware flashed %100 but it didn't boot still in EDL .can someone guide me how to fix it
Can someone help!
jahanzaiblohani said:
Can someone help!
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Click to collapse
Hello,first thing i noticed is that msm tool finished with around 200 sec.i think that's not normal.I often use msm tool and every time finishes around over 300 sec.I see you have correct Qualcomm drivers.i'm not an expert but you must investigate a little bit more.good luck
darksx said:
Hello,first thing i noticed is that msm tool finished with around 200 sec.i think that's not normal.I often use msm tool and every time finishes around over 300 sec.I see you have correct Qualcomm drivers.i'm not an expert but you must investigate a little bit more.good luck
Click to expand...
Click to collapse
Drivers are correct and I was flashing it with USB 3.0 port .
I would try older stock ROMs first. O+7pro have plenty of them regarding EDL/MSM mode.
Another thing are checksums. Try to check if your download was successfull by counting them from your side and by comparing what you have with provided download. It should match 1:1.
KyRol said:
I would try older stock ROMs first. O+7pro have plenty of them regarding EDL/MSM mode.
Another thing are checksums. Try to check if your download was successfull by counting them from your side and by comparing what you have with provided download. It should match 1:1.
Click to expand...
Click to collapse
I have the old stock ROM which I flashed it in EDL but phone didn't boot when it is completed phone reboot too but not in normal mode in EDL again
Most often people have bad experience with qualcomm drivers. So make sure that you have some released after 2020 year, as oneplus 7 pro was released in 2020 year. Another issue is related to usb 3.x, better avoid that and try USB 2.0 instead, most of people have best results with older interface of that kind. EDL is kind of old solution, so better to stay away with USB 3.x and use USB 2.0.
Have you got any idea your flash is successful in edl tool? Have you got clean results or warnings/errors?
To be honest with you, I have to use EDL too, because I did wrong upgrade. I used custom ROM instead of stock ROM. Now I have not access to fastboot nor adb via USB either.
try different EDL ROMs, I found 2 threads. one is here, second there. As almost nobody anserws our questions, I will let you know what I did if I do it successfully.
Well, I discovered that I'm in pretty bad situation. In my case not only adb and fastboot does not works. It appears that EDL does not work either. Why? because I connected another oneplus phone over USB to PC and EDL mode was detected spot on. In case my o+7pro, well still same error as previously with adb/fastboot over USB. Something messed with USB on my phone at software side.
So I have to get motherboard get cheap. I do not thik that I can desolder flash or eMMC and revert that so easy.
Sorry Man, can not help you any
further. Turns out my issue is signifigantly other than yours.

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