[Hard brick] OPO3T: Phone is stuck on Qualcomm HS-USB Diagnostics 900E - OnePlus 3T Questions & Answers

Hello all,
I've hard-bricked my OPO3T. Attached 2 files: the OPO3T motherboard and a screenshot of the PC Devices.
Basically, what I've done was formatting it from scratch using the MsmDownloadTool, as I've done many times before.
Don't know how, but after a "successful" flash, the phone gave no vital signs (no display, no leds, no vibration, no hope).
From that moment, the PC recognized the device as "Qualcomm HS-USB Diagnostics 900E" instead of "Qualcomm HS-USB QDLoader 9008".
I've tried many things, passed a good amount of time googling and searching and watching YT videos about it, but found no solution to the problem.
I've also used a borrowed Windows 7 PC as someone suggested on Oneplus Forums, but same result. The device is recognized as HS-USB Diagnostics 900E.
In my google research, I've found that, for Xiaomi devices, there is something called "test points" and a "DIY EDL cable" to overcome the Qualcomm 900E problem. But find nothing about the OPO3T.
I'm not an expert, but I assume that the OPO3T motherboard is not "broken", but entered in a state where it will not be willing to talk anymore via the "normal" protocol (pardon my pseudo-tech-ish assumptions), but expecting to talk to the PC in another way.
I've tried to open the OPO3T to find "spots" on the motherboard, without any other knowledge, to find hints of something similar, but (obviously) find none.
So, I'm asking to the community ... can I solve in any way this problem? Motherboard hack? DIY cable? Anything?
Thank you very much

you find a solution? My asus zenfone 8 flip entered ramdump mode basically hard-bricked randomly and now its recognised as 900E on device manager haveno idea what to do

900E mode isn't a full hard brick. It's a semi-brick

Master Santa said:
900E mode isn't a full hard brick. It's a semi-brick
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Click to collapse
Hello,
thank you for the good news.
Do you have any idea how to resolve this problem?

I'm not sure how useful this tool will be but I stumbled upon this https://github.com/bkerler/edl
You may be able to get your device recovered from it

Also to get into EDL mode try some of these combos:
Method 1:
Keep your device plugged in and press vol+ and vold- simultaneously as well as power... Once the device is off release power while still holding the volume buttons... Usually for most devices (like mine) this will throw it into EDL
Method 2:
Try the above, but with just one of the volume keys pressed and maybe you'll be able to get it into EDL
Method 3:
If you have a spare cable for your Android cross D+ with GND and make yourself a deep flashing cable to send the device into EDL or check for test points on your device

Related

Bricked HD2 Help......

No Boot loader
Not charging
No lights
Nothing by pressing vol down and power buttons
Nothing by pressing both vol buttons and reset button
Turned off for hours without battery and pressed power button for long time to drain the battery and turned back on.
Nothing works any more ideas.
But when I connect it to my laptop it does make a notification sound that a new device is connected and is called the qualcomm cdma technologies msm.
If I have bricked it and no solutions and I have warranty should I call HTC or my insurance company?
See..
http://forum.xda-developers.com/showthread.php?p=7444943#post7444943
OK,try this! Remove the Battery-Cover. Look at the Space between the Battery and the Phones Frame on the lower side,on the right of our SIMcard. If you can see two small Pins,remove the battery, and reinsert it carefuly,so that the two Pins are touching the contacts on the Battery...
what happened?
flashing fail? any details please.
DN41
When experiencing any kind of problems its always usefull to post what you was doing before the problem occured. With no other information, there is no way to do any kind of propper trouble shooting.
Its like droping your car at a garage, say it has problems and walk away. Was it that you ran out of gas, did you battery failed or the engine, is it only a lightbulb that doesnt work. A car mechanic wont be able to help you with the car problem cuz he dont know what kind of problem you were experiencing
Try to recharge your phone by default loader (not by pc-USB) for a few hours and try to boot again. Or try entering boot loader while pressing volume down and power on after a few hours of loading.
I agree.
The issue has been posted like a telegram being sent to a grandchild for her nanny's funeral...!!
No one will probe you for your issues. You need to provide as many details as to how you r***ed your HD2..!!
Hi
i have pretty much the same problem. I got this phone on ebay because someone tried to put another rom on it and failed due to an power failure (thunderstorm).
When i connect the phone to the computer via USB, it recognizes a Qualcomm CDMA MSM Driver but cannot install it.
About the phone:
No lights, no bootloader, nothing. It becomes warm while charging so i assume the hardware is not faulty. I guess the bootloader is broken.
Do you have any idea how to save this phone?
i had once a similar issue...
i flashed and failed (not really, cause it works again )..
everything was the same only that i could get access to bootloader (and so my leo booted up).
but when it was powered off and i connected it to my pc, it also recognized a qualcomm device...
badly, that doesnt help you...
i have no plan how to get this work again...if the phone doesnt turn on...
maybe its time for a prayer.
DN41
I just found this thread, and hoping someone has come up with an answer, though I havn't actually searched the threads yet as i just got the phone today, cause someone bricked it trying to unlock it (I assume because his only clue was I might need to flash a different rom). But its the same symptoms, no lights, dosn't show charging, attempts to install a qualcomm CDMA MSM driver when connected to windows pc.
Is there a solution?
Thank you in advance for your replys.
DemonLoader said:
I just found this thread, and hoping someone has come up with an answer, though I havn't actually searched the threads yet as i just got the phone today, cause someone bricked it trying to unlock it (I assume because his only clue was I might need to flash a different rom). But its the same symptoms, no lights, dosn't show charging, attempts to install a qualcomm CDMA MSM driver when connected to windows pc.
Is there a solution?
Thank you in advance for your replys.
Click to expand...
Click to collapse
Nope. You're screwed.

[Q] HTC Desire 500 Qualcomm HS-USB QDLoader 9008 - Phone bricked, LED blinking

Hellow fellows, so recently I've received HTC Desire 500 which I thought I could use as my secondary phone. However, the phone is bricked to the point where only LED flashes repeatedly when charging. But I found out that my computer can actually see the phone's chipset when plugged in through USB, which means there is a possibility to save it, right? So I started looking on the forums for the hex or xml file which contains the.. well.. "blueprint" to use in QPST to flash the software. Unfortunately my search results came out negative, so I thought if I could try to make my own blueprint and try to restore my phone to its functioning state, I don't mind if the phone is reset to the original state, that's actually what I want. All help is appreciated! If I can't do anything else, then I guess repair services is the alternate option.

Hardware bootloop, bricked, but PC recognizes

Hi all,
A few weeks ago my LG G4 started bootlooping. (I've heard this is a common problem with serial numbers starting between 505 and 509 - mine is 505...) I heatgunned the chips under the shields on the back of the mainboard, but all that did was break it even further; now it won't even turn on! BUT, the computer recognizes it first as QHSUSB_BULK, then as Qualcomm HS-USB QDLoader 9008. I also tried the freezer method, but that did neither harm nor help. Is there any hope for this phone? Thanks in advance.
xaresys said:
Hi all,
A few weeks ago my LG G4 started bootlooping. (I've heard this is a common problem with serial numbers starting between 505 and 509 - mine is 505...) I heatgunned the chips under the shields on the back of the mainboard, but all that did was break it even further; now it won't even turn on! BUT, the computer recognizes it first as QHSUSB_BULK, then as Qualcomm HS-USB QDLoader 9008. I also tried the freezer method, but that did neither harm nor help. Is there any hope for this phone? Thanks in advance.
Click to expand...
Click to collapse
Check my signature for the bootloop fix list. Also read at the bottom what your current issue means..

Phone stuck in EDL mode - only reboots into EDL mode

Hi all,
I've found a lot of information on this happening to Pixel 3's a while ago, but not as much out there for samsungs.
My S20 FE black screened yesterday and wouldn't reboot. When plugging into a computer it shows up as Qualcomm HS-USB Qloader (now that I have the drivers installed for it)
Is there anything I can reasonably due to unbrick this? EDL.PY does recognize my phone, but I also can't seem to find the firehose files that may or may not exist for the s20.
why F around, it could be a failing component or a bad connection on the board. get it looked at.

[Help] Samsung Galaxy Ace Duos Hard Brick

After I took this Samsung Galaxy Ace Duos(SCH-i589) and refreshed the GT-S5830 ROM with Odin, it became a hard brick (I did this because I installed AIDA64 Android Edition and it said gt-s5830 under "Hardware", which turned out to be purely misleading, I thought it would refresh successfully) now the phone has no reaction, no Recovery, no download mode, nothing, complete hard brick, no reaction, what should I do? : (
DavidLiang1129 said:
After I took this Samsung Galaxy Ace Duos(SCH-i589) and refreshed the GT-S5830 ROM with Odin, it became a hard brick (I did this because I installed AIDA64 Android Edition and it said gt-s5830 under "Hardware", which turned out to be purely misleading, I thought it would refresh successfully) now the phone has no reaction, no Recovery, no download mode, nothing, complete hard brick, no reaction, what should I do? : (
Click to expand...
Click to collapse
If the device is completely unresponsive, there is nothing you can do as an end user to fix it.
You're going to have to have it repaired or replaced.
V0latyle said:
If the device is completely unresponsive, there is nothing you can do as an end user to fix it.
You're going to have to have it repaired or replaced.
Click to expand...
Click to collapse
Thank you for your reply! It's not completely unresponsive, after I press the download mode shortcut for a few seconds, the screen flickers a little and then goes out, nothing happens, as if it wanted to enter download mode but failed
V0latyle said:
If the device is completely unresponsive, there is nothing you can do as an end user to fix it.
You're going to have to have it repaired or replaced.
Click to expand...
Click to collapse
In addition I had to remove the battery and then connect the computer without the battery before this could be triggered
In addition, I tried this method, but I don't know how long to press these buttons, I keep pressing them, but the screen just keeps flashing and nothing happens
V0latyle said:
If the device is completely unresponsive, there is nothing you can do as an end user to fix it.
You're going to have to have it repaired or replaced.
Click to expand...
Click to collapse
my friend who has a Samsung Galaxy Ace 3(GT-S7278U) also went through a hard brick like this, he told me to charge the phone, after about 24 hours, the phone will automatically go into download mode, I haven't tried it yet, I've never heard of this method (picture is my friend's phone)
V0latyle said:
If the device is completely unresponsive, there is nothing you can do as an end user to fix it.
You're going to have to have it repaired or replaced.
Click to expand...
Click to collapse
I bought a USB JIG from an online shopping platform because I checked the forums and the vast majority of people said that USB JIG would help, but the merchant said "this product will not help hard bricks" which confused me a little, I wanted to know the exact answer? If you or someone else can answer it, I would appreciate it! (Also, luckily, I didn't refresh the partition table. A friend of mine said that if I did, the phone would be dead.)
DavidLiang1129 said:
I bought a USB JIG from an online shopping platform because I checked the forums and the vast majority of people said that USB JIG would help, but the merchant said "this product will not help hard bricks" which confused me a little, I wanted to know the exact answer? If you or someone else can answer it, I would appreciate it! (Also, luckily, I didn't refresh the partition table. A friend of mine said that if I did, the phone would be dead.)
Click to expand...
Click to collapse
The only jig I could think of would be JTAG, and while I imagine the board does have a JTAG header, Qualcomm (and Samsung) provides a means to perform low level flashes using specialized tools such as QPST. However the tools and the files necessary are not publicly available and there is zero end user support. Most repair centers won't reflash your phone; they'll just replace the main board and program it with your IMEI.
V0latyle said:
The only jig I could think of would be JTAG, and while I imagine the board does have a JTAG header, Qualcomm (and Samsung) provides a means to perform low level flashes using specialized tools such as QPST. However the tools and the files necessary are not publicly available and there is zero end user support. Most repair centers won't reflash your phone; they'll just replace the main board and program it with your IMEI.
Click to expand...
Click to collapse
Thank you for your reply. As far as I know, USB JIG comes in two varieties, one is forced to boot the device into download mode via a MicroUSB plug with 4 resistors, and the other is what you call JTAG, and I bought the former
V0latyle said:
The only jig I could think of would be JTAG, and while I imagine the board does have a JTAG header, Qualcomm (and Samsung) provides a means to perform low level flashes using specialized tools such as QPST. However the tools and the files necessary are not publicly available and there is zero end user support. Most repair centers won't reflash your phone; they'll just replace the main board and program it with your IMEI.
Click to expand...
Click to collapse
USB JIG arrived today, but it didn't work... I removed the battery two seconds later, put it back on the phone, and plugged in the USB JIG, but nothing happened, I even waited five minutes, was I using it wrong? I even paid about 10 CNY(about $1.50) for it, including a 2 CNY USB JIG and 8 CNY shipping... If it's just a dust plug, it's not a good deal...) I need help. Thank you so much!
Good news, guys! Instead of using the USB JIG, I switched to a USB cable that was just on the charger of one of my old phones. I connected my battery-free Galaxy to my computer, pressed volume up + Volume Down + Power, and something magical happened: my computer made the sound of new hardware discovery! The screen lights up and displays the Samsung Logo, but it goes black after a few seconds. (I think the USB cable doesn't connect reliably, but only it works.)
DavidLiang1129 said:
Good news, guys! Instead of using the USB JIG, I switched to a USB cable that was just on the charger of one of my old phones. I connected my battery-free Galaxy to my computer, pressed volume up + Volume Down + Power, and something magical happened: my computer made the sound of new hardware discovery! The screen lights up and displays the Samsung Logo, but it goes black after a few seconds. (I think the USB cable doesn't connect reliably, but only it works.)
Click to expand...
Click to collapse
Check Device Manager and see if it displays an unknown device
V0latyle said:
Check Device Manager and see if it displays an unknown device
Click to expand...
Click to collapse
Thanks for your reply, on my first attempt, I didn't look for an unknown device, Windows just said "failed to install device driver" and I never succeeded again... The screen was just black, but when I plugged the phone into the computer using the USB cable, Windows said there was an unrecognized USB device. I tried several USB cables, but only that made the computer respond
V0latyle said:
The only jig I could think of would be JTAG, and while I imagine the board does have a JTAG header, Qualcomm (and Samsung) provides a means to perform low level flashes using specialized tools such as QPST. However the tools and the files necessary are not publicly available and there is zero end user support. Most repair centers won't reflash your phone; they'll just replace the main board and program it with your IMEI.
Click to expand...
Click to collapse
By the way, this phone uses Qualcomm SOC. Can I remove it and short some contacts to enter 9008 mode?
DavidLiang1129 said:
By the way, this phone uses Qualcomm SOC. Can I remove it and short some contacts to enter 9008 mode?
Click to expand...
Click to collapse
Not that I know of
V0latyle said:
Not that I know of
Click to expand...
Click to collapse
Ok, so it doesn't seem like there's any other software-based way to recover it, thanks for all your help, but I'm still looking forward to what software-based way to recover it
DavidLiang1129 said:
Ok, so it doesn't seem like there's any other software-based way to recover it, thanks for all your help, but I'm still looking forward to what software-based way to recover it
Click to expand...
Click to collapse
You can try these if you haven't already. Sometimes 3's a charm... This article indicates there are hard points present, I can't verify that as you're deeper than I ever care to go. If that option is viable you better make sure you get it right as it bypasses all built in safeguards and as I understand it could completely brick the phone for good. Might want pay a expert with lots of experience try to recover it... or learn as you go.
blackhawk said:
You can try these if you haven't already. Sometimes 3's a charm... This article indicates there are hard points present, I can't verify that as you're deeper than I ever care to go. If that option is viable you better make sure you get it right as it bypasses all built in safeguards and as I understand it could completely brick the phone for good. Might want pay a expert with lots of experience try to recover it... or learn as you go.
Click to expand...
Click to collapse
Thank you!! When I followed Method 3, the phone screen flashed and Windows told me it had found an unrecognized USB device! I feel like I'm getting there!!
blackhawk said:
You can try these if you haven't already. Sometimes 3's a charm... This article indicates there are hard points present, I can't verify that as you're deeper than I ever care to go. If that option is viable you better make sure you get it right as it bypasses all built in safeguards and as I understand it could completely brick the phone for good. Might want pay a expert with lots of experience try to recover it... or learn as you go.
Click to expand...
Click to collapse
What do I do next? Do I need any hardware drivers?
DavidLiang1129 said:
What do I do next? Do I need any hardware drivers?
Click to expand...
Click to collapse
I haven't a clue but for Windows you need the right USB drivers. You can try the find the right driver option as well as checking Event Viewer for error messages, etc. Or more Google searches...
I purposely avoided playing with the firmware on Androids including upgrades/updates. That works well for me.

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