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Question Param preload failed - MSM trying to unbrick Android 12

Hi, so the Android 12 beta soft bricked my OP9 and im stuck in pin verification loop. Im trying to revert back to Android 11 using MSMDownloadTool but every time i press start when the phone is connected in EDL mode, it returns "Param preload error" after about 10s. I tried different ports, i tried reinstalling all the drivers but then every time i hit the param preload error. I dont know what to do about it. I have european OP9 model (or i at least think so) but the downgrade is availible only in T-Mobile or India versions. Is that the problem, should i wait for european?
Is there perhaps simpler way to reset the OP9 back to Android 11 since it still boots up and its not hard bricked?

Try fastboot flashing a ROM using a flashall.

Press start on msm first. So you see waiting on phone. Then reboot to edl mode.
It only works on the first few seconds of edl otherwise always fails.

Where did you get the MSMtool, and will you share it?

XNine said:
Where did you get the MSMtool, and will you share it?
Click to expand...
Click to collapse
OnePlus 9 11.2.22.2 (T-Mobile) MSM Download Tool
Oxygen OS 11.2.22.2.LE54CB (T-Mobile) Download: https://drive.google.com/file/d/1-5RC9f8es6ZrwpYKKQBMmw5gW-rzDSfZ/view?usp=sharing Size: 2.92 GB MD5: b6fc004c81d311109f66cceb3f375862
forum.xda-developers.com
This is for t-mobile version.

MSM tools are region/brand specific

Hard Bricked Oneplus 8

Hello XDA Members,
Please help me i have hard bricked oneplus 8 IN2017 Tmobile while installing Custom pixel Experience ROM
and now MSM tool Unbrick tool not working its shows download complete but phone is not booting after showing oneplus logo phone goes to EDL mode.
also i am not able to flash stock fastboot rom because bootloader is locked. Please help me how to unbrick this phone

Try MSM again, on a different PC and with a different USB cable *if* you can.
Aside from that contact OnePlus.
Was this your first time using MS download tool? Have you succesfully flashed to stock with MSM before?

yes i have used msm many times and tried on different PCs nothing is working
msm tool shows successfully download complete and now i am receiving this error (PIC attached)
i think i have messed up partitions.

Question [SOLVED] From bricked to working phone

I have a hard bricked OP9 and have tried alot of different guides from here or other ressources.
The problem is somewhere in the process something is not supported and the how to dies there.
MSM download tool prompts that says "Packed image not exists!"
OP9 LE2113 version (EU Version i guess)
Phone is black screen and can not be detected through ADB or fastboot. Either through the Qualcomm HS-USB QDloader 9008 Drivers.
Before it bricked it was unlocked (bootloader) Not sure it is anymore
Can someone send me a link or guide that can guide me the right direction?

Try the Oneplus 9 Pro India recovery tool. I know it doesnt make sense, but its the only thing that has worked for many, including myself and I have a OP9 5G North America.
Once recovered, the OS will boot but buggy. You can then restore to correct image via twrp full zip

Ill try that this evening, ill let u know ill turn out.
I typically run into sahara connection because i dont have connection through ADB of fastboot

#gorilla p
Try the Oneplus 9 Pro India recovery tool. I know it doesnt make sense, but its the only thing that has worked for many, including myself and I have a OP9 5G North America.
Once recovered, the OS will boot but buggy. You can then restore to correct image via twrp full zip
Click to expand...
Click to collapse
i have used this link
https://onepluscommunityserver.com/list/Unbrick_Tools/OnePlus_9_Pro/ India version
And at the moment it is booting.
Unticked reboot and SHA check, This is indeed a good day !
Ive got a working phone again,
I will mark this thread as solved

Question [SOLVED] OP9 MSM Tool not working. Phone possibly hard bricked.

So i tried to flash some firmware for a custom rom with enhanced fastboot. afterwards the phone booted into EDL mode and only EDL mode. i cant get bootloader, fastboot, recovery, or even system boot. before when this has happened msm tool worked well, but now ive tried 4 diff msm tool repacks, 2 diff versions of QFIL. MSM tool gets stuck on "start download firehose binary". then errors out to "sahara communication failed". QFIL errors to "qdssloader fail" or "924 sahara protocol error" and " qsahara server fail". the github edl utility reports "sahara in unknown mode, resetting". ive tried many cmd utilities, python utilities, qualcomm utilities, etc. idk if its completely gone or if there is a way to save it such as switching boot slots without fastboot? i have tried the EDL python utility and it says process completed on boot slot switching but still the same EDL only boot and unresponsive flashing attempts. i have tried like 30 different methods and 2 OSes to try and remedy this issue. i also have telegram and discord for one on one help: @rivapeeva riva!#0451

Have you tried the Indian MSM tool? I thought I was boned when I was messing with my phone a couple of weeks ago, and that was the only thing that worked for me.

riva! said:
So i tried to flash some firmware for a custom rom with enhanced fastboot. afterwards the phone booted into EDL mode and only EDL mode. i cant get bootloader, fastboot, recovery, or even system boot. before when this has happened msm tool worked well, but now ive tried 4 diff msm tool repacks, 2 diff versions of QFIL. MSM tool gets stuck on "start download firehose binary". then errors out to "sahara communication failed". QFIL errors to "qdssloader fail" or "924 sahara protocol error" and " qsahara server fail". the github edl utility reports "sahara in unknown mode, resetting". ive tried many cmd utilities, python utilities, qualcomm utilities, etc. idk if its completely gone or if there is a way to save it such as switching boot slots without fastboot? i have tried the EDL python utility and it says process completed on boot slot switching but still the same EDL only boot and unresponsive flashing attempts. i have tried like 30 different methods and 2 OSes to try and remedy this issue. i also have telegram and discord for one on one help: @rivapeeva riva!#0451
Click to expand...
Click to collapse
Are you TMobile or global 9?

Frosthaxx said:
Are you TMobile or global 9?
Click to expand...
Click to collapse
tmobile

posar said:
Have you tried the Indian MSM tool? I thought I was boned when I was messing with my phone a couple of weeks ago, and that was the only thing that worked for me.
Click to expand...
Click to collapse
i tried the UE tool, the indian tool, the na tool, the tmobile tool, and the conversion tool.

riva! said:
i tried the UE tool, the indian tool, the na tool, the tmobile tool, and the conversion tool.
Click to expand...
Click to collapse
Indian msm tool works on lite Firehose. Then use TMobile India mod and you can from there do what you need to do. Caution however. Doing the Indian trick makes your bootloader to the Indian bootloader but all functions will still work. You just can't use normal msms anymore

Unfortunately the bricking your describing is what happened to me because I goofed something. But I was able to get back using this to TMobile India after Indian. Then using the bootloader unlock guide in TMobile.a few update scenarios, then eventually evolution x. Unless someone has a better way there's not much written about this situation. I had to figure it out myself

IF ANYONE needs info on how i managed to fix this, please dm me or add my socials. If you flashed the wrong xbl/xbl_config files and now your sahara/firehose doesnt work, feel free to reach out. it took me 4 days straight of surfing and downloading and trial and error.

Unfortunately I don't think my issue can be fixed. There isn't anything specifically on fixing Indian region bootloader. Once that's done I think it's sol but it still works normal. I had to however because my brick also wasn't reading the USB either. It was a very odd situation. And I've modded and given advice on multiple phones. I'm glad you got yours working though. Doesn't bother me though

Phone works and the India mod get me back where needed. But others that haven't flashed the Indian msm tool could benefit from your find

Hard Bricked oneplus 8t not starting EDL mode

Hi everybody,
I've Oneplus 8t kb2003 updated to the last ota firmware 13.1.
I tried to downgrade it to 13 by flashing full OTA payload.bin using fastboot enhance app but unfortunately the device is bricked.
Usually when such thing happen I boot the EDL mode and use msm tool to unbrick it which worked for me couple years before but for some reason the device is not detected at all on EDL mode!
The device manager not showing any thing called qualcomm even the msm tool not detecting any thing.
I tried to redownload the qualcomm driver and followed all instructions in this link , used 3rd party cables and the original cable and changed ports but nothing happens
It's like the phone is completely dead
any ideas how to get out of this mess ?

Reo0o said:
Hi everybody,
I've Oneplus 8t kb2003 updated to the last ota firmware 13.1.
I tried to downgrade it to 13 by flashing full OTA payload.bin using fastboot enhance app but unfortunately the device is bricked.
Usually when such thing happen I boot the EDL mode and use msm tool to unbrick it which worked for me couple years before but for some reason the device is not detected at all on EDL mode!
The device manager not showing any thing called qualcomm even the msm tool not detecting any thing.
I tried to redownload the qualcomm driver and followed all instructions in this link , used 3rd party cables and the original cable and changed ports but nothing happens
It's like the phone is completely dead
any ideas how to get out of this mess ?
Click to expand...
Click to collapse
Install all the necessary drivers and use MSM tool to restore your phone.
[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
P.S: Don't use fastboot enhance app, as it wasn't updated for quite some time and was reason of bricking several phones after flashing.

If you used Fastboot Enhance it could have flashed the wrong xbl file for your RAM type. If is it so, the only thing you can try is a deep flash cable or shorting the test pins on the motherboard.