Possible brick. Fail with flashing TWRP. - Samsung Galaxy S8 Questions and Answers

Hello,
Today I flash TWRP for Oxynos devices on Snaprdagon S8. Yes, I know know that it was stupid. After that, there was a bootloop. After i recognize my fail, I force powered off the phone and wanted to flash correct TWRP, but my phone don't look bo alive anymore. It doesn't react on power + any other button configuratiom. Computer doesn't see the phone and LED is off all the time. Possible brick, I think.
Did anyone have this or similiar problem and have any sollution to this?

kajtek612 said:
Hello,
Today I flash TWRP for Oxynos devices on Snaprdagon S8+. Yes, I know know that it was stupid. After that, there was a bootloop. After i recognize my fail, I force powered off the phone and wanted to flash correct TWRP, but my phone don't look bo alive anymore. It doesn't react on power + any other button configuratiom. Computer doesn't see the phone and LED is off all the time. Possible brick, I think.
Did anyone have this or similiar problem and have any sollution to this?
Click to expand...
Click to collapse
I doubt anyone tried flashing exynos twrp on the snapdragon model.....why would you do that?
Can you get into download mode?

adj998 said:
I doubt anyone tried flashing exynos twrp on the snapdragon model.....why would you do that?
Can you get into download mode?
Click to expand...
Click to collapse
It was my mistake. My mind went off for a while. I knew that I have Snap version so I download Exynos TWRP
No, download mode doesn't work, computer doesn't recognize the phone, phone doesn't vibrate after pluging usb charger. Simply dead, brick.
As I read, the only thing that MIGHT help me is JTAG. Am I right?

kajtek612 said:
It was my mistake. My mind went off for a while. I knew that I have Snap version so I download Exynos TWRP
No, download mode doesn't work, computer doesn't recognize the phone, phone doesn't vibrate after pluging usb charger. Simply dead, brick.
As I read, the only thing that MIGHT help me is JTAG. Am I right?
Click to expand...
Click to collapse
I honestly don't know about that I'm sorry, what happens when you plug in the charger?
Come here and people will help you with your issue
https://discord.gg/VH4W435

adj998 said:
I honestly don't know about that I'm sorry, what happens when you plug in the charger?
Come here and people will help you with your issue
Click to expand...
Click to collapse
Unfortunately nothing happens. Any vibration. Any LED light. Only wireless charger change its color when I put the phone on it but phone doesnt react.

Related

[Q] unBricking options/Odin

Question about unbricking the fascinate and odin use. I am coming from a samsung vibrant, i could flash roms, brick and odin all day without issues. Part of what allowed me to do this was a usb jig with 301k ohm resistor in it. It forced the phone into download mode and then you could odin away.
Does the fascinate have this option? I'm going to pickup the phone tomorrow, this would just be icing on the cake if this was available.
thanks guys.
There are only 2 situations that I've seen that will cause a permanent brick for our phones. One is flashing anything through the "Phone" button in Odin. If you always use the PDA button, you'll never have to worry about that brick situation. The other would be flashing the modem of another phone as I don't think anyone has recovered from this either. Other than that, I think that if you have the battery out, hold down on the volume down button, and plug in the USB cable, it will always enter download mode to help you restore in some fashion.
imnuts said:
There are only 2 situations that I've seen that will cause a permanent brick for our phones. One is flashing anything through the "Phone" button in Odin. If you always use the PDA button, you'll never have to worry about that brick situation. The other would be flashing the modem of another phone as I don't think anyone has recovered from this either. Other than that, I think that if you have the battery out, hold down on the volume down button, and plug in the USB cable, it will always enter download mode to help you restore in some fashion.
Click to expand...
Click to collapse
sounds pretty good, thank you.
the reason i ask is the vibrant would boot onto a screen with a cell phone, warning sign and a computer if you messed up real bad. the only way out was to either have your phone warrantied or use the usb jig i mentioned in the first post. if its a non issue then awesome!
the jig is compatible with this phone. use it in the same way that you use it with the vibrant. just flash the di01 full package if anything goes wrong.
iwasaperson said:
the jig is compatible with this phone. use it in the same way that you use it with the vibrant. just flash the di01 full package if anything goes wrong.
Click to expand...
Click to collapse
thanks man. if someone can, could they add this to a faq or wiki? as the jig is extremely useful and can be made for next to nothing and would probably help out some of the noobies.
Im a noob when it comes to this type of stuff, but what would be the difference between the 301k resistor, and just putting your phone in download mode with the power/vol button w/regular usb.
i0nicx said:
sounds pretty good, thank you.
the reason i ask is the vibrant would boot onto a screen with a cell phone, warning sign and a computer if you messed up real bad. the only way out was to either have your phone warrantied or use the usb jig i mentioned in the first post. if its a non issue then awesome!
Click to expand...
Click to collapse
I had this happen on my Fascinate while I was updating to DL09 / Reflashing to stock.
I got to download screen by just holding down the volume down button with the battery out and connecting the usb.
OneAn9ryN00b said:
Im a noob when it comes to this type of stuff, but what would be the difference between the 301k resistor, and just putting your phone in download mode with the power/vol button w/regular usb.
Click to expand...
Click to collapse
some vibrants came from the factory locked so the download mode wasn't accessible via the button method. so the jig would allow download mode access.

Completely dead P9 lite

So it looks like this phone is not completely unbrickable. I've seem to brick mine pretty bad.
The phone doesn't turn on at all. No vibration or other kind of feedback.
Doesn't appear on the computer either.
So my question is: is there any emergency download mode like in qualcomm based phones?
randhackr said:
So it looks like this phone is not completely unbrickable. I've seem to brick mine pretty bad.
The phone doesn't turn on at all. No vibration or other kind of feedback.
Doesn't appear on the computer either.
So my question is: is there any emergency download mode like in qualcomm based phones?
Click to expand...
Click to collapse
I don't know about it.
michal383 said:
I don't know about it.
Click to expand...
Click to collapse
It seems completely dead. Probably only with test point. Warranty most likely will refuse it since it is boot loader unlocked.
randhackr said:
It seems completely dead. Probably only with test point. Warranty most likely will refuse it since it is boot loader unlocked.
Click to expand...
Click to collapse
Yes Warranty falls if the bootloader unlocked. Test Point could help.
Well warranty will most likely only complain if it was bricked by the user and software modification.
If your phone broke because of an hardware issue, you have a chance that warranty still repairs it for free.
Schlengge said:
Well warranty will most likely only complain if it was bricked by the user and software modification.
If your phone broke because of an hardware issue, you have a chance that warranty still repairs it for free.
Click to expand...
Click to collapse
Well since it broke after I flashed b160 firmware I am most likely SOL. Since I had twrp flashed they will find out that it was modified..
My advice is not to mess with fastboot mode. Flash twrp and be careful with what you flash.
Did you tried to flash original firmware with the three buttons?
Sent from my HUAWEI VNS-L31 using XDA-Developers mobile app
Potato997 said:
Did you tried to flash original firmware with the three buttons?
Sent from my HUAWEI VNS-L31 using XDA-Developers mobile app
Click to expand...
Click to collapse
Yup. It's completely dead. No fastboot mode, no recovery or erecovery. It simply does not turn on (or enumerate in a computer either).
If you could boot into recovery,the rest would be simple....download the stock firmware, unzip it and push the file to your phone,then install
LiaquateRahiman said:
If you could boot into recovery,the rest would be simple....download the stock firmware, unzip it and push the file to your phone,then install
Click to expand...
Click to collapse
He can't enter in recovery or fastboot.
Potato997 said:
He can't enter in recovery or fastboot.
Click to expand...
Click to collapse
Have you tried to enter fastboot or recovery solely using the button combos? or did you try using adb as well? It's possible your battery deep-discharged, or your power adapter/connectors are faulty.
Potato997 said:
He can't enter in recovery or fastboot.
Click to expand...
Click to collapse
Yes I cant enter anything in fact. There was a suggestion to connect the phone without battery to the computer but it implies opening up the phone and even if it did something I don't have the tools to flash it. (dc-phoenix only seems to work with phones with fastboot working)
As far as I know the symptoms that my phone is experiencing are due to the fastboot partition being messed up.
As far I was able to research there is another boot loader before the fastboot one. But the phone doesn't respond at all, it is dead. I will ask around in phone repair shops if they can reflash the phone.
randhackr said:
Yes I cant enter anything in fact. There was a suggestion to connect the phone without battery to the computer but it implies opening up the phone and even if it did something I don't have the tools to flash it. (dc-phoenix only seems to work with phones with fastboot working)
As far as I know the symptoms that my phone is experiencing are due to the fastboot partition being messed up.
As far I was able to research there is another boot loader before the fastboot one. But the phone doesn't respond at all, it is dead. I will ask around in phone repair shops if they can reflash the phone.
Click to expand...
Click to collapse
Before you do anything rash, have you considered getting a usb jig? Simply put the stock firmware on the jig then plug it into the usb port on your phone. It will automatically put your phone into download mode and install the firmware. Here's the link to make your own usb jig http://forum.xda-developers.com/galaxy-s2/help/guide-how-to-make-usb-jig-reset-binary-t1604707. Hopefully this helps!!!
LiaquateRahiman said:
Before you do anything rash, have you considered getting a usb jig? Simply put the stock firmware on the jig then plug it into the usb port on your phone. It will automatically put your phone into download mode and install the firmware. Here's the link to make your own usb jig http://forum.xda-developers.com/galaxy-s2/help/guide-how-to-make-usb-jig-reset-binary-t1604707. Hopefully this helps!!!
Click to expand...
Click to collapse
That is for samsung phones. I gave on trying to fix the phone. Next week I'm going to send it to a phone repair shop and see what they can do.
Edit: The phone repair guy says that the only way it can be repaired is by replacing the emmc or replacing the motherboard. So for now the phone will sit in the drawer until I manage to get a new board.
Hello
I had the same problem with my honor 7, the only solution is to replace the motherboard :/
If the phone is completely dead, warranty will accept it just because they will change your motherboard if they can't turn it on. I had the same problem last week, probably an hardware fail, I gave it to them saying that the phone simply turned off and they changed the whole motherboard (bootloader unlocked, twrp and root).
Well I tried sending it to the repair center. Two days later they replaced the whole phone, they said that there was an issue with the power ic.
B160 works for me.. hmm.... using it for like a [email protected]@
might be your hardware that cause the problem and not the firmware?
ivanwong1989 said:
B160 works for me.. hmm.... using it for like a [email protected]@
might be your hardware that cause the problem and not the firmware?
Click to expand...
Click to collapse
I'm starting to think so, I've flashed the replacement and it didn't brick. May or may not be related to the headers, but I don't want to be creative right now since I need the phone lol.
What is b160 can you explain

Qualcomm hs-usb qdloader 9008 nexus 6P (HELP!)

Hi there, I've been browsing through the threads related to unbricking of the Nexus 6P stuck in qualcomm hs-usb qdloader 9008 mode, really desperate to get my device working again if even possible however I've tried for about four days now different ways and files and I've had no luck.
My bootloader is locked and no ADB etc managed to get my device showing as the 9008 port so I think it's stuck in EDL.
Following guides, this is the furthest I've yet to get (In screenshot)
Could anyone shed some light and some assistance please? what am I doing wrong!?
attempted to apply for heat some to the device then re flash ?
blackcell1 said:
attempted to apply for heat to the device then re flash ?
Click to expand...
Click to collapse
Sorry, I don't quite understand what you mean?
Clarkeofcurtis said:
Sorry, I don't quite understand what you mean?
Click to expand...
Click to collapse
Use a hairdryer to warm up the back of the phone.
Are you pulling my leg? Warm it up then reflash?
nah im not trying to make you destroy your phone, being rather serious with this method. i use it on a daily basis to solve phones that fail during restoring factory images. i wouldn't know how long to give it with a hair dryer as i have access to a heat gun/heat mats .
just think of it as a cheap mans re balling method
blackcell1 said:
nah im not trying to make you destroy your phone, being rather serious with this method. i use it on a daily basis to solve phones that fail during restoring factory images. i wouldn't know how long to give it with a hair dryer as i have access to a heat gun/heat mats .
just think of it as a cheap mans re balling method
Click to expand...
Click to collapse
Sorry haha, I'm a noob with most of this android stuff bar rooting and flashing a few devices prior! I shall give it a go now and get back to you - thank you for the advice
Clarkeofcurtis said:
Sorry haha, I'm a noob with most of this android stuff bar rooting and flashing a few devices prior! I shall give it a go now and get back to you - thank you for the advice
Click to expand...
Click to collapse
good luck, id give it a good couple of minutes on the highest setting, just so its a little hot to the touch. and attempt the flashing of the files when its still hot/warm.
blackcell1 said:
good luck, id give it a good couple of minutes on the highest setting, just so its a little hot to the touch. and attempt the flashing of the files when its still hot/warm.
Click to expand...
Click to collapse
thank you so much that worked, it has said flash successful, first time I got a google logo but now nothing, what would be my next step please?
if the bootloader is unlocked then you can directly flash the firmware. but if its not google "nexus ota" and then on your phone jump into the recovery and check the firmware model number and download the same ota and adb sideload it.
im not 100% sure on the next step as I've never had a nexus 6p with a dead bootloader. but thats what id do.
---------- Post added at 04:50 PM ---------- Previous post was at 04:49 PM ----------
but from my personal experience with having to heat a phone up to restore factory images, it kinda means the phone is nearing the end of its life and id start thinking about buying your next phone before it sh*ts the bed.
blackcell1 said:
if the bootloader is unlocked then you can directly flash the firmware. but if its not google "nexus ota" and then on your phone jump into the recovery and check the firmware model number and download the same ota and adb sideload it.
im not 100% sure on the next step as I've never had a nexus 6p with a dead bootloader. but thats what id do.
Click to expand...
Click to collapse
Thank you for the reply and continuing to help, after seeing the google logo just once I'm getting nothing again - I'm even more determined now though as It's been dead for 2 months so this is the furthest I've gotten - the application of heat is what did it for me and fixed the error I was getting, can't get into recovery now though holding power + down etc
Clarkeofcurtis said:
Thank you for the reply and continuing to help, after seeing the google logo just once I'm getting nothing again - I'm even more determined now though as It's been dead for 2 months so this is the furthest I've gotten - the application of heat is what did it for me and fixed the error I was getting, can't get into recovery now though holding power + down etc
Click to expand...
Click to collapse
yeah can you access the bootloader at all ? does it say that the bootloader is locked ? from trying to restore LG's it sometimes has to be re heated a few times, but yeah if you need to re heat it to get further into the phone then its pretty much a lost cause. the only reason i do it is to remove the data so we can resell the device.
blackcell1 said:
yeah can you access the bootloader at all ? does it say that the bootloader is locked ? from trying to restore LG's it sometimes has to be re heated a few times, but yeah if you need to re heat it to get further into the phone then its pretty much a lost cause. the only reason i do it is to remove the data so we can resell the device.
Click to expand...
Click to collapse
I can get into the andriod screen where you can select recovery and such, with the BL, Baseband product variation and such, where should I go from here?
Oh right, so even once restored to firmware, will it be useless do you think if I can even manage to?
Clarkeofcurtis said:
I can get into the andriod screen where you can select recovery and such, with the BL, Baseband product variation and such, where should I go from here?
Oh right, so even once restored to firmware, will it be useless do you think if I can even manage to?
Click to expand...
Click to collapse
Sorry if you can't access the recovery from the bootloader and its in locked state then your a member of the lovely group of BLOD (bootloader of death) if you hit recovery does it show a little android logo and sit there?
Sorry for the late reply
blackcell1 said:
Sorry if you can't access the recovery from the bootloader and its in locked state then your a member of the lovely group of BLOD (bootloader of death) if you hit recovery does it show a little android logo and sit there?
Sorry for the late reply
Click to expand...
Click to collapse
I believe so, I can just about get into the bootloader at the best of times and when I do I can select options but once proceeding to start said mode phone freezes so can't get into recovery mode :/
Thank you for your continuous help, only way i can get it into bootloader is by heating it up so does that mean for the device to ever work It'll need heat every time? looking like a spares and repairs listing on ebay
Clarkeofcurtis said:
I believe so, I can just about get into the bootloader at the best of times and when I do I can select options but once proceeding to start said mode phone freezes so can't get into recovery mode :/
Thank you for your continuous help, only way i can get it into bootloader is by heating it up so does that mean for the device to ever work It'll need heat every time? looking like a spares and repairs listing on ebay
Click to expand...
Click to collapse
Hello....
How did you manage to get in to EDL mode..? I'm really curious. With stock bootloader? Since you can't access recovery
Also what is exactly displayed in Windows device manager?
You are using an outdated QFil version... It is from 2014 àr 2015.
Do a google search with: QPST_2.7.453.0 . This version seem to be from 2016.
Use the first link from the result. I analysed the files with virustotal, those seem clean or malware...
Also when plugging your usb cord to your PC, does your phone vibrate? Or does the LED blink in red?
You may have to press power button when plugging the usb cord or press power button for a certain amount of time before you plug the usb cord. I'm not completly sure, but your phone may not be in the "proper" EDL state to accept the QFil flash.
Good luck... :good:
Is it possible to send me the guide you used? Thanks.
Clarkeofcurtis said:
Hi there, I've been browsing through the threads related to unbricking of the Nexus 6P stuck in qualcomm hs-usb qdloader 9008 mode, really desperate to get my device working again if even possible however I've tried for about four days now different ways and files and I've had no luck.
My bootloader is locked and no ADB etc managed to get my device showing as the 9008 port so I think it's stuck in EDL.
Following guides, this is the furthest I've yet to get (In screenshot)
Could anyone shed some light and some assistance please? what am I doing wrong!?
Click to expand...
Click to collapse
Hey there sorry for slow replies, will be back on my desktop in an hour I'll send you links for what I followed and such, I think the only reason my device was in EDL mode was due to a hardware fault? As my device is faulty indefinitely as I had to use a hairdryer to warm it up while flashing this then allowed it to enter firehose state which a lot of people seem to error with - after all my attempts and research I'm to velieve there's a fault with the phone itself the only way I could get it to even power up was applying heat to it after removing the back panel
As blackcell said deballing or something? Worked a treat!
Furthest I've managed to get now is into my boot loader however everything is locked - when I press enter recovery my handset just freezes ?
5.1 said:
Hello....
How did you manage to get in to EDL mode..? I'm really curious. With stock bootloader? Since you can't access recovery
Also what is exactly displayed in Windows device manager?
You are using an outdated QFil version... It is from 2014 àr 2015.
Do a google search with: QPST_2.7.453.0 . This version seem to be from 2016.
Use the first link from the result. I analysed the files with virustotal, those seem clean or malware...
Also when plugging your usb cord to your PC, does your phone vibrate? Or does the LED blink in red?
You may have to press power button when plugging the usb cord or press power button for a certain amount of time before you plug the usb cord. I'm not completly sure, but your phone may not be in the "proper" EDL state to accept the QFil flash.
Good luck... :good:
Click to expand...
Click to collapse
Thanks pal if you check last post I wrote about my EDL mode forgot to tag you my apologies, as for my LED I've never seen that light up since I bricked it, even when google logo came up etc and while in the boot loader
Clarkeofcurtis said:
Thanks pal if you check last post I wrote about my EDL mode forgot to tag you my apologies, as for my LED I've never seen that light up since I bricked it, even when google logo came up etc and while in the boot loader
Click to expand...
Click to collapse
Light usually a red LED blink while in proper EDL state as far as I know. Could be something else on the N6P. Well, it looks like you are SOL. Sorry, I don't know what else to say, since you exhausted all possibilities...
Good luck...

I'm trying to unbrick my x720 by QFIL but my pc won't recognize Qualcomm 9008 port

My problem is that I can't even try to do the procedure in the other threads that i've read because my pc simples dont recognize anything when i install the qualcomm drivers. Any tips? Thank you in advance. I want to try this thread [GUIDE][QFIL MODE]Unbrick your Le Pro3, tested and working. But simply the qualcomm port doesnt appear in the device manager.
Bad cable or need to reinstall drivers...
marik1 said:
Bad cable or need to reinstall drivers...
Click to expand...
Click to collapse
I tried with two different cables and reinstalled the drivers a few times now. No port in the device manager. Just the Android ADB Interface tha showed when I installed the leeco adb drivers. On the ports just appear the standard Comunication port and printer port. I tried everything, the volume bottons power, etc. The Flash One dont recognize the phone for QFIL.
Say sth more about your phone state and history...
marik1 said:
Say sth more about your phone state and history...
Click to expand...
Click to collapse
I dont have hardware problems. I flashed the Pixel Experience rom in february with sucess but I didnt like it. It had too much battery drain. Then I wanned to try some other rom like AICP. But in the process of flashing something went wrong. I wasnt able to flash it, always gave me the error 7. Then it simply died. I was rebooting TWRP mode and it went dead. Now just vibrates when I try to turn on. I tried the QFIL process (both volumes + power) but I dont even know. How can we know that it in qfil mode? My pc wont recognize anything. Not in Flash One, Not in QPST, nothing. Am I doing something wrong? The phone vibrates so its charged. I installed the Qualcomm drivers properly, I thing, eventhow it doesnt appear the qualcomm 9008 port in the device manager. Its suppose to appear before the phone is pluged right? Thank you for the reply.
I've no idea how to help you... Sorry.
gradim said:
I dont have hardware problems. I flashed the Pixel Experience rom in february with sucess but I didnt like it. It had too much battery drain. Then I wanned to try some other rom like AICP. But in the process of flashing something went wrong. I wasnt able to flash it, always gave me the error 7. Then it simply died. I was rebooting TWRP mode and it went dead. Now just vibrates when I try to turn on. I tried the QFIL process (both volumes + power) but I dont even know. How can we know that it in qfil mode? My pc wont recognize anything. Not in Flash One, Not in QPST, nothing. Am I doing something wrong? The phone vibrates so its charged. I installed the Qualcomm drivers properly, I thing, eventhow it doesnt appear the qualcomm 9008 port in the device manager. Its suppose to appear before the phone is pluged right? Thank you for the reply.
Click to expand...
Click to collapse
Instead of creating a new post why not just read the enormous unbrick forums that exists and have proven steps. Many, Many phones have been debricked using those steps.
Hint, read the last pages for updated links to the software tools needed.
Next, I just found this cable which will help immensely with unbricking your device: https://www.amazon.com/GPG-EDL-Cabl...r1&keywords=edl+cable+for+wall+qualcomm+usb+c
tsongming said:
Instead of creating a new post why not just read the enormous unbrick forums that exists and have proven steps. Many, Many phones have been debricked using those steps.
Hint, read the last pages for updated links to the software tools needed.
Next, I just found this cable which will help immensely with unbricking your device: https://www.amazon.com/GPG-EDL-Cabl...r1&keywords=edl+cable+for+wall+qualcomm+usb+c
Click to expand...
Click to collapse
I've tried four different cables now and nothing. Thank you for minding but I think there isn't a solution for my leeco. Its dead and no one can help him.
Is yours 722?
Sent from my SM-A730F using xda premium
mchlbenner said:
Is yours 722?
Sent from my SM-A730F using xda premium
Click to expand...
Click to collapse
No, x720 6gb ram 64 rom.
gradim said:
No, x720 6gb ram 64 rom.
Click to expand...
Click to collapse
Is your phone completely Dead or do you have fashboot or anything working.
Do have a red flashing light?
Sent from my SM-A730F using xda premium
mchlbenner said:
Is your phone completely Dead or do you have fashboot or anything working.
Do have a red flashing light?
Sent from my SM-A730F using xda premium
Click to expand...
Click to collapse
Completely dead, just vibrates when I press power and yes, I sometimes have the red light, sometimes flashing, sometimes stable.
gradim said:
I dont have hardware problems. I flashed the Pixel Experience rom in february with sucess but I didnt like it. It had too much battery drain. Then I wanned to try some other rom like AICP. But in the process of flashing something went wrong. I wasnt able to flash it, always gave me the error 7. Then it simply died. I was rebooting TWRP mode and it went dead. Now just vibrates when I try to turn on. I tried the QFIL process (both volumes + power) but I dont even know. How can we know that it in qfil mode? My pc wont recognize anything. Not in Flash One, Not in QPST, nothing. Am I doing something wrong? The phone vibrates so its charged. I installed the Qualcomm drivers properly, I thing, eventhow it doesnt appear the qualcomm 9008 port in the device manager. Its suppose to appear before the phone is pluged right? Thank you for the reply.
Click to expand...
Click to collapse
Your phone is probably fixable.
Based on what you stated above, it seems that you downloaded and attempted to install the wrong version of TWRP and now your phone has no recovery at all.
Here is partial instructions I posted in the unbricking forum : https://forum.xda-developers.com/showpost.php?p=76100899&postcount=121
Use those instructions along with is mentioned below. I have personally helped so many people unbrick their phone that I have lost track and this is the reason why the posts are so long and extensive. Because sometimes what works for one person does not work for the next. So I have essentially have taken everyone's great advice and updated the links, made the instructions steps a little more concise and easier to read, fixed some incorrect steps or added the needed skipped steps. Plus added my own research into what I believe is now a definitive guide for unbricking the Leeco variants X720 and X727. The point of not reposting the information here is to keep everything from becoming more fragmented.
Yes, it's possible that you have a hardware issue. But, its also possible that it can be fixed!
Remember that you will not see the port unless you are in EDL mode
Just press volume △ (+) and volume ▽ (–) buttons together while powering the phone on.
It should now be EDL mode. If you cannot get into EDO mode, you cannot do anything else.
If you get an error, press and hold the power button while at the same time hold vol up + and down simultaneously plug the usb cord into the back of the computer while holding the buttons.
Yes, It's a pain and this is why the deep flash cable is handy....it's a special cable ( so your extra cables will do nothing to help you) The deep flash cable will automatically put your phone into EDL mode and allow you to use Flash on.
Install the Qualcomm QDLoader 9008 driver: https://goo.gl/9E3bKq or the from links provided in the unbrick forum.
There are multiple versions or Qfil, some have issues. I posted the correct one that works.
FOR anything else go to that forum read my and everyone else's posts. Again, I keep all of my linked files are up to date, and many are located on my own drives.
You can make one of these cables. Here's a video that shows you how:
https://www.youtube.com/watch v=kSiGsYK66gM&lc=z220yhtqvwyyct21pacdp432sh2xjecek10dae1jen5w03c010c.1524884617336803
it will not be a quick fix.
There are 4 or 5 different unbricking options and it requires persistence and patience.
The good news is that your phone has a solution that may work.
So when your where flashing a rom you got error 7 and your phone went dead.
I had gotten that same error.
Error could mean two things 1) update recovery or update firmware.
My point is sounds nice like hardware issue.
These phones are known for just dieing.
Also getting into that mode you have to push power+volume+volume- at the same time.
Sent from my SM-A730F using xda premium

Has anyone succeeded in repairing a bricked Poco M3?

My M3 was working perfectly. I put it to restart and then it didn't turn on anymore. It is now only recognized as "Qualcomm HS-USB QDLoader 9008" on Windows. I opened the phone and with some magical combination (remove/connect flat cables from the battery and display, connect the USB cable, press volume keys and short the test points) it started in fastboot. So I was able to flash the "fastboot ROM". Unfortunately, on the next boot it still does not turn on normally. Has anyone succeeded in repairing the Poco M3? In Mi Flash is requested an authenticated account to flash through it, is it worth paying someone to provide the account? Does anyone have the contact of someone who makes cheap? Any help is welcome, thank you!
me too
waiting, someone pls
LeandroFarias said:
waiting, someone pls
Click to expand...
Click to collapse
I kind of managed to get my Poco M3 to start on Android (but it's not fully fixed).
That is the points
vinod3362 said:
That is the points
Click to expand...
Click to collapse
What?
me too. after i reboot my poco m3. it came to black and wont boot up. i google everything, the only need to flash is to modified the firehose. badly needed.
KaMyKaSii said:
My M3 was working perfectly. I put it to restart and then it didn't turn on anymore. It is now only recognized as "Qualcomm HS-USB QDLoader 9008" on Windows. I opened the phone and with some magical combination (remove/connect flat cables from the battery and display, connect the USB cable, press volume keys and short the test points) it started in fastboot. So I was able to flash the "fastboot ROM". Unfortunately, on the next boot it still does not turn on normally. Has anyone succeeded in repairing the Poco M3? In Mi Flash is requested an authenticated account to flash through it, is it worth paying someone to provide the account? Does anyone have the contact of someone who makes cheap? Any help is welcome, thank you!
Click to expand...
Click to collapse
how do you get into fastboot?? i tried mine but it wont boot in fastboot. i'm stuck in QDLoader.
did someone successfully recover their bricked poco m3 ?
gasleak08 said:
did someone successfully recover their bricked poco m3 ?
Click to expand...
Click to collapse
nothing yet. we need firehose to bypass miflash authentication. or drain the battery then press vol down + power for 10secs.
KaMyKaSii said:
I kind of managed to get my Poco M3 to start on Android (but it's not fully fixed). Are you Brazilian too? Call me on telegram
Matheus
You can contact @MatheusCoelho1998 right away.
t.me
Click to expand...
Click to collapse
can u tell me how?mine too?
my phone has bricked with UBL condition and i flash whole partition with twrp and magisk to solve the heating problem now its alive again
I just wait till the battery totally discharge and then plug in the charger,sofar been through this problem for 2x,the first one for 2 days and 5 days for later because the battery was full.
This happens when Im restarting the device and now even there is a new update,Im still scare to update my device to the latest firmware incase it wont boot again.
Should I try to update or nah,guys?
Minoda86 said:
I just wait till the battery totally discharge and then plug in the charger,sofar been through this problem for 2x,the first one for 2 days and 5 days for later because the battery was full.
This happens when Im restarting the device and now even there is a new update,Im still scare to update my device to the latest firmware incase it wont boot again.
Should I try to update or nah,guys?
Click to expand...
Click to collapse
do not try to update it... i tried 3 times their own ota update broke the phone os which makes it unable to go to recovery or fastboot. i will try and see if i can update firmware and fix itself
yankee77 said:
do not try to update it... i tried 3 times their own ota update broke the phone os which makes it unable to go to recovery or fastboot. i will try and see if i can update firmware and fix itself
Click to expand...
Click to collapse
I did update it and now my phone wont boot at all,after the battery hits 1%,it just wont do anything and its been 2 weeks,pc does detect it as qualcom loader but flashing without auth wont work,Im just waiting for firehose file for this stupid phone.People with auth asking for $30 for fixing it but without guarantee that it will work,what a joke.
So did you fix your phone?
yankee77 said:
do not try to update it... i tried 3 times their own ota update broke the phone os which makes it unable to go to recovery or fastboot. i will try and see if i can update firmware and fix itself
Click to expand...
Click to collapse
Yeahhh,my phone finally boot up!
But sadly the latest update failed to install.Guess I should just wait until someone patch the firehose file and try not to update until then.Fingercross!
i fixed the deadboot issue. but it wont fix the restart deadboot. try to flash every region and version firmware both recovery and fastboot. the problem still there.
vinzikidz said:
i fixed the deadboot issue. but it wont fix the restart deadboot. try to flash every region and version firmware both recovery and fastboot. the problem still there.
Click to expand...
Click to collapse
how did u fix deadboot can you elaborate? how did you flash from edl ?
gasleak08 said:
how did u fix deadboot can you elaborate? how did you flash from edl ?
Click to expand...
Click to collapse
sorry, there's is no tutorial for this and it has a quite process. you just need to throttle the proc temperature of your phone board using hot blower or any device you have. while your phone is in high temp. both pin board and battery is in unplug hold vol down then put back the board pin and battery pin at the same time. it will vibrate and fastboot will be fine.
Guys this is my procedure to turn on the phone:
I can make it turn on Android after messing with the battery and sub-board cables but this is just a workahound, trying to turn it on normally through the power button always makes it turn on in edl mode
But opening the device voids the warranty, so anyone who has access to a repair center is better off asking for the warranty
What to do:
1. Disconnect the battery cable and the secondary board cable.
2. Connect charger.
3. Hold the power button.
4. Connect the secondary board cable and quickly connect the battery cable.
5. Release the power button when the device vibrates.
It doesn't always work the first time, you may need several tries to get it
VID_20210514_152510.mp4
drive.google.com

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