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Hello everyone
I'm really in a panic. I tried to flash the rom but something has gone wrong is the phone was restarted resulting in a black screen. I found a guide on xda
this http://forum.xda-developers.com/showthread.php?t=2582142
I followed to the letter, but now I do not rionosce more the phone and I just always fixed lg logo.
While the first pc recognized me something now does not recognize me nothing more.
How can I make you think ??? Please give me a hand. How can I possibly do with the guarantee ??
I'm desperate.
I managed to turn off the phone and I went into factory reset but nothing happens after several minutes, the phone remains in the same condition. How can I make ???
hello I have the same worries 1 Week
tries on Started in appyant on volume + power and voulume - keeping them and said to me that you
desolated for my Middle English I am french
i hope some body of pros can help us
hi
did u try push to power up and plug the phone on pc ?
OK, so assuming your device is turned off you should be able to get into download mode since you got into the factory reset option.
What do need to do is whilst the device is off, hold volume up and plug it into a PC whilst keeping the volume up button pressed down. If you can get to the download mode it can be fixed by following this:
http://forum.xda-developers.com/showthread.php?t=2432476
You will lose all your data though.
Sent from my LG-D802 using XDA Free mobile app
Hey guys i really need your help, i decided to unlock the bootloader of my phone, and so i did without any issue, the phone opened and worked completly, so i wanted to relock it and so i did also without any issue, but i wanted root again so i tried to unlock it again with the same Code with the official unlocking way, but this time the phone have been stuck and red led notification blinking everytime i put in on computer.
If i plug off the power source and try to open the device the red light blink very fast and there is a charging symbol on the screen but then dissapers instantly and nothing the phone turning off.
I cannot enter on recovery or dload, anyone knows what to do? The PC cant recognize the phone if i plug it.
Here some video to check the issue, please turn on the subtitles because im speaking Greek https://www.youtube.com/watch?v=oTkx0ifNhg4
Also here https://www.youtube.com/watch?v=F9dS76eRe0c
Huawei is one of the worst companies i ever saw! Their phones are so easy to brick and they can't be fixed!
Wait until the battery drained and phone shutdown, connect charger again and wait for 5 minutes , it will turn on in erecovery , shutdown and redo fastboot etc carefully.
Dr4In said:
Hey guys i really need your help, i decided to unlock the bootloader of my phone, and so i did without any issue, the phone opened and worked completly, so i wanted to relock it and so i did also without any issue, but i wanted root again so i tried to unlock it again with the same Code with the official unlocking way, but this time the phone have been stuck and red led notification blinking everytime i put in on computer.
If i plug off the power source and try to open the device the red light blink very fast and there is a charging symbol on the screen but then dissapers instantly and nothing the phone turning off.
I cannot enter on recovery or dload, anyone knows what to do? The PC cant recognize the phone if i plug it.
Huawei is one of the worst companies i ever saw! Their phones are so easy to brick and they can't be fixed!
Click to expand...
Click to collapse
Dissconnect the usb cable and hold the power button. When it is just about to reboot, plug in the USB and hold the volume down button. This should take you to fastboot OR to error mode...
-------
Huawei devices aren't easy to brick, but recovering the devices is a pain... I hard bricked my device as well a couple weeks ago..
I have tried to wait for the battery drained completly and if you plug the usb while the phone is off the phone is powering on automatically and stays to the "Your Device has been unlocked"
Also with the same method before i plug in the usb i was trying to hold the volume down button and plug it in but it didnt happend it is booting on the same thing.
Dr4In said:
I have tried to wait for the battery drained completly and if you plug the usb while the phone is off the phone is powering on automatically and stays to the "Your Device has been unlocked"
Also with the same method before i plug in the usb i was trying to hold the volume down button and plug it in but it didnt happend it is booting on the same thing.
Click to expand...
Click to collapse
pls clear actual screen position of ur fone, unlock screen titled as fastboot and rescue or yellow text with black background.
chances are there u get fastboot connection by turning off mobile by power button hold for 7 seconds and phone turned off wait for a while ensure no USB cable connected to phone. then press volume down button and conect USB cable, you will see fast boot and rescue screen. now issue command fastboot devices. if u see ur devices serial number there then follow further fasboot procedure mentioned in other threads,
Fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot flash system.img
above files may be obtained by extracting update.app for ur phone stock image by huawei extractor. you have to work for 2 days constantly for unbricking phone. I have gone through all these processes last week.
rizwansadiq said:
pls clear actual screen position of ur fone, unlock screen titled as fastboot and rescue or yellow text with black background.
chances are there u get fastboot connection by turning off mobile by power button hold for 7 seconds and phone turned off wait for a while ensure no USB cable connected to phone. then press volume down button and conect USB cable, you will see fast boot and rescue screen. now issue command fastboot devices. if u see ur devices serial number there then follow further fasboot procedure mentioned in other threads,
Fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot flash system.img
above files may be obtained by extracting update.app for ur phone stock image by huawei extractor. you have to work for 2 days constantly for unbricking phone. I have gone through all these processes last week.
Click to expand...
Click to collapse
Hi, I have a similar problem: "your device has been unlocked and can't be trusted". I cannot enter fastboot nor with the two buttons method (power + volume down) or the three buttons method. I messed up with the EMUI, I guess. Infact, I unlocked the bootloader, relocked it and tried to unlock it again to flash a custom ROM. The first time I unlocked the bootloader, I tried to install TWRP but something went bad, I do not remember what, but I decided to relock.
Now I am stuck with this message. But....sometimes, I can't understand WHEN, I can enter my phone Last time it was when I tried the above solution (only volume down and usb cable, without the Power button). When the phone turned on, HiSuite recognized "a phone" was connected because the software turned on, but it couldn't really see it. I went into the Developer Options on the phone to turn on OEM, but it was grey and I could do nothing :crying:
Full of hope because the phone turned on, I then tried to flash the content of the SD Card (where I put files extracted with the Huawei Update Extractor) by holding the three buttons (power + volume up + volume down), but again it appeared the "your device has been unlocked" message.
Now the phone is off. Once, in the meantime, it appeared a red flash on the screen for one second, I am not sure it is related to the battery, it doesn't display a battery but only a flash.
I cannot enter fastboot in any way, I cannot flash from SD card, sure I cannot rollback because it implies flashing.
My only hope is some command to be given when I can enter the phone. Anyway, I sent it to repair (not official, I have obviously no guarantee anymore) and they sent it back to me: they didn't know what to do.
Any idea? Thanks a lot!
PS: I will read your replies as soon as I can but I have very variable ad unstable working hours!
Please don't blame Huawei for YOUR mistakes. Thank you
Johnny TDN said:
Please don't blame Huawei for YOUR mistakes. Thank you
Click to expand...
Click to collapse
Did I? Sorry if it seemed so, but of course are my mistakes...
help us
i have a same problem did you find solution
Same Problem Here
I have the same issue. Have anyone found a solution yet?
Dr4In said:
Hey guys i really need your help, i decided to unlock the bootloader of my phone, and so i did without any issue, the phone opened and worked completly, so i wanted to relock it and so i did also without any issue, but i wanted root again so i tried to unlock it again with the same Code with the official unlocking way, but this time the phone have been stuck and red led notification blinking everytime i put in on computer.
If i plug off the power source and try to open the device the red light blink very fast and there is a charging symbol on the screen but then dissapers instantly and nothing the phone turning off.
I cannot enter on recovery or dload, anyone knows what to do? The PC cant recognize the phone if i plug it.
Here some video to check the issue, please turn on the subtitles because im speaking Greek https://www.youtube.com/watch?v=oTkx0ifNhg4
Also here https://www.youtube.com/watch?v=F9dS76eRe0c
Huawei is one of the worst companies i ever saw! Their phones are so easy to brick and they can't be fixed!
Click to expand...
Click to collapse
I think the red light blinks cause you are critically low on power. Leave it plugged in. Ignore whats on the screen just leave it plugged in for a few hours and leave it alone.
Meticulus said:
I think the red light blinks cause you are critically low on power. Leave it plugged in. Ignore whats on the screen just leave it plugged in for a few hours and leave it alone.
Click to expand...
Click to collapse
Same here with a BLN-L21 (Honor 6x)
The phone will not charge with this method. Try to let it plug one night, and no charge !
@Meticulus this was the question felix ask you: is uboot (booting with sdcard) is possible ?
Fixed for me with buy an honor 9 ... but investigate to revive my honor 6x.
For now i have maybe found how to shutdown phone, to charge battery (with shurtcut two point in motherboard) but don't know if phone charge for the moment because there is no light
Solution for the moment but difficult AND / OR expensive ....
1. Remove emmc and repair it with a JTAG box.
2. Try to boot with uboot (but probably won't work)
---------- Post added at 03:32 PM ---------- Previous post was at 02:57 PM ----------
Dr4In said:
Hey guys i really need your help, i decided to unlock the bootloader of my phone, and so i did without any issue, the phone opened and worked completly, so i wanted to relock it and so i did also without any issue, but i wanted root again so i tried to unlock it again with the same Code with the official unlocking way, but this time the phone have been stuck and red led notification blinking everytime i put in on computer.
If i plug off the power source and try to open the device the red light blink very fast and there is a charging symbol on the screen but then dissapers instantly and nothing the phone turning off.
I cannot enter on recovery or dload, anyone knows what to do? The PC cant recognize the phone if i plug it.
Here some video to check the issue, please turn on the subtitles because im speaking Greek https://www.youtube.com/watch?v=oTkx0ifNhg4
Also here https://www.youtube.com/watch?v=F9dS76eRe0c
Huawei is one of the worst companies i ever saw! Their phones are so easy to brick and they can't be fixed!
Click to expand...
Click to collapse
Hello, can ask you some question about how you have hardbricked this phone ?
My honor 6x is same bricked, and red light too. So the big question is THE FIRSTIME BRICK = phone was FREEZE can't reboot and can't do nothing. I have wait for empty battery, and now dload and all is not working ?
I will try to charge my battery out of phone. For me it's like the phone never charge ... but i will try with a charged battery and plug unplug battery connector. It's like red screen low battery change boot mode ...
sanjay.rup said:
Same here with a BLN-L21 (Honor 6x)
The phone will not charge with this method. Try to let it plug one night, and no charge !
@Meticulus this was the question felix ask you: is uboot (booting with sdcard) is possible ?
Fixed for me with buy an honor 9 ... but investigate to revive my honor 6x.
For now i have maybe found how to shutdown phone, to charge battery (with shurtcut two point in motherboard) but don't know if phone charge for the moment because there is no light
Solution for the moment but difficult AND / OR expensive ....
1. Remove emmc and repair it with a JTAG box.
2. Try to boot with uboot (but probably won't work)
---------- Post added at 03:32 PM ---------- Previous post was at 02:57 PM ----------
Hello, can ask you some question about how you have hardbricked this phone ?
My honor 6x is same bricked, and red light too. So the big question is THE FIRSTIME BRICK = phone was FREEZE can't reboot and can't do nothing. I have wait for empty battery, and now dload and all is not working ?
I will try to charge my battery out of phone. For me it's like the phone never charge ... but i will try with a charged battery and plug unplug battery connector. It's like red screen low battery change boot mode ...
Click to expand...
Click to collapse
Its not actually mine and it was long time ago, but the owner told me that he unlocked bootloader with the official way, relocked, and then he unlocked again the third time the phone died.
Hello.
me too, he does not want to do anything anymore.
he only knows this '' your device is booting now '' screen with the red LED flashing.
whatever I do, it always starts on this screen. I think you have to change the motherboard.
Do you know where to find it at a reasonable price?
VNS-l31
Your device has been unlocked and can't be trusted
after i try to unlock my huawei P9 lite, my phone show this message "Your device has been unlocked and can't be trusted" and i can't restart or load from sd card.
i put update.app in new folder "dload", put the sd card in phone.... no boot. my laptop not detect usb phone. help me please.
ionut69 said:
after i try to unlock my huawei P9 lite, my phone show this message "Your device has been unlocked and can't be trusted" and i can't restart or load from sd card.
i put update.app in new folder "dload", put the sd card in phone.... no boot. my laptop not detect usb phone. help me please.
Click to expand...
Click to collapse
I fixed mine today. I just had to wait for 5 hours for the battery to drain. then when it shuts off i waited 10 min. after that i started the phone and i let me choose to continue to the phone.
I dunno if you have the exact same problem but thats how i fixed mine.
And after that i tried factory resetting (cause bluetooth and NFC didn't work) but then it got stuck again. so i waited it out and it worked once again.
Too scared to do anything to my phone now :/
alesbabnik said:
I fixed mine today. I just had to wait for 5 hours for the battery to drain. then when it shuts off i waited 10 min. after that i started the phone and i let me choose to continue to the phone.
I dunno if you have the exact same problem but thats how i fixed mine.
And after that i tried factory resetting (cause bluetooth and NFC didn't work) but then it got stuck again. so i waited it out and it worked once again.
Too scared to do anything to my phone now :/
Click to expand...
Click to collapse
now my battery is empty but when i plug in acc cable show same screen
any fix on this as I have the same issue with huawei p9 lite - no recovery mode, no usb reckognition from pc. Just stuck on that "unsafe" prompt screen after huawei logo
Stop buying huawei phones if you are into custom roms or root. They made the phone easily brickable and they removed the bootloader unlock site due to some stores installing malware into phones. But hey, they couldn't simply do what Xiaomi is doing eh?
Hello
So a few days ago, my Huawei P8 Lite started doing strange things. The phone often stopped working , but I was still able to restart it. This morning, the screen was stuck again, so I restarted the phone . However, I was not able to put it on again. The screen remains black, and the only thing that is working, is the little light (that is turning red all the time).
I have no back-ups (I know, this is stupid), but there are some very dear pictures on it. I have been reading some guides to recover the date, but I can't figure out what to do, and the applications I've tried are not working.
If I connect the phone to my laptop, it is recognized as Fastboot 2.0. Is it possible to recover data through this? The fact that my laptop still recognizes something, does it mean the phone still works?
I don't have to money to go to a shop or recovery center, so any help or advice would be appreciated.
Thanks in advance!
Michieldgz said:
Hello
So a few days ago, my Huawei P8 Lite started doing strange things. The phone often stopped working , but I was still able to restart it. This morning, the screen was stuck again, so I restarted the phone . However, I was not able to put it on again. The screen remains black, and the only thing that is working, is the little light (that is turning red all the time).
I have no back-ups (I know, this is stupid), but there are some very dear pictures on it. I have been reading some guides to recover the date, but I can't figure out what to do, and the applications I've tried are not working.
If I connect the phone to my laptop, it is recognized as Fastboot 2.0. Is it possible to recover data through this? The fact that my laptop still recognizes something, does it mean the phone still works?
I don't have to money to go to a shop or recovery center, so any help or advice would be appreciated.
Thanks in advance!
Click to expand...
Click to collapse
Boot in fastboot by press and hold volume down and conect your usb cable on pc and your phone then press power button,once you are in fastboot,flash twrp recovery,then boot to recovery,once in there,conect your usb cable,you should see your memory phone
So, I downloaded the A2017G B08 from this thread onto my SD card and went into the settings to update. All was fine until the phone got to the update screen and to 25% on the progress bar. Then the screen turned off, along with the phone. If I try to boot it, it's the same story. I see the ZTE screen, get to the update progress bar but it gets stuck on 25% and turns off. Kind of like a manual boot loop.
The phone isn't rooted or anything, I was downgrading to marshmallow to try and fix mic issues I was having earlier but never expected this.
Please help.
Thanks.
*deleted*
vesheljinn said:
So, I downloaded the A2017G B08 from this thread onto my SD card and went into the settings to update. All was fine until the phone got to the update screen and to 25% on the progress bar. Then the screen turned off, along with the phone. If I try to boot it, it's the same story. I see the ZTE screen, get to the update progress bar but it gets stuck on 25% and turns off. Kind of like a manual boot loop.
The phone isn't rooted or anything, I was downgrading to marshmallow to try and fix mic issues I was having earlier but never expected this.
Please help.
Thanks.
Click to expand...
Click to collapse
Ouch. We can try stuff but I never read anything like this here.
First try to access the recovery directly. I think it's Volume up and power, but if you get into FTM mode just try with volume down. If you can, then download B10 from the download center (it's weird that we have everything there and nobody uses it, it's frickin stickied on the Guides section for God's sake) or Nougat B04 and try to install it from an SD card.
If it doesn't work you have two ways to go: if the bootloader is unlocked, install TWRP via Controllerboy's guide (using axon7tool, it works every time)
OR
put your phone on EDL mode (Connect the USB cable to the PC, then hold both Volume buttons (NOT POWER) and insert the cable on the phone, and use MiFlash to get a working B10 on your phone. (there's a B10 package on 4pda)
If you choose the TWRP way you can install MiFavor 5.0 and be done with it. Or maybe a custom ROM, but if you didn't have any problem staying stock as it seems that you did, then you'll probably not like custom ROMs and their bugs
This is what I thougth as well. But his link only refers to B08 in MM. So he didn't want to install B08 on Nougat. As his bootloader is still locked he cannot install this ROM in no way.
Choose an username... said:
Ouch. We can try stuff but I never read anything like this here.
First try to access the recovery directly. I think it's Volume up and power, but if you get into FTM mode just try with volume down. If you can, then download B10 from the download center (it's weird that we have everything there and nobody uses it, it's frickin stickied on the Guides section for God's sake) or Nougat B04 and try to install it from an SD card.
If it doesn't work you have two ways to go: if the bootloader is unlocked, install TWRP via Controllerboy's guide (using axon7tool, it works every time)
OR
put your phone on EDL mode (Connect the USB cable to the PC, then hold both Volume buttons (NOT POWER) and insert the cable on the phone, and use MiFlash to get a working B10 on your phone. (there's a B10 package on 4pda)
If you choose the TWRP way you can install MiFavor 5.0 and be done with it. Or maybe a custom ROM, but if you didn't have any problem staying stock as it seems that you did, then you'll probably not like custom ROMs and their bugs
Click to expand...
Click to collapse
Hey, thanks for the response.
I downloaded MiFlash and got a working B10 but when I went to reboot the phone the screen wouldn't turn on, just the red LED was on. If I tried to go into recovery mode the phone vibrates and the LED flashes but it goes back to the same state. Also if I connect it to the PC and try and enter EDL mode there are sounds from windows that a USB device is being connected but that's it. MiFlash can't recognise the phone.
vesheljinn said:
Hey, thanks for the response.
I downloaded MiFlash and got a working B10 but when I went to reboot the phone the screen wouldn't turn on, just the red LED was on. If I tried to go into recovery mode the phone vibrates and the LED flashes but it goes back to the same state. Also if I connect it to the PC and try and enter EDL mode there are sounds from windows that a USB device is being connected but that's it. MiFlash can't recognise the phone.
Click to expand...
Click to collapse
I just had this issue, I plugged the phone into the orginal charger and for a legit 60sec held volume up and power button it will eventually power on .
jjallday said:
I just had this issue, I plugged the phone into the orginal charger and for a legit 60sec held volume up and power button it will eventually power on .
Click to expand...
Click to collapse
Did that for ~2 minutes, still nothing. Forgot to mention, when I connect it to the PC I get Handset Diagnostic Interface as a connected device.
vesheljinn said:
Did that for ~2 minutes, still nothing. Forgot to mention, when I connect it to the PC I get Handset Diagnostic Interface as a connected device.
Click to expand...
Click to collapse
hmm well idk i had this problem earlier today, even when i had mine connected to the pc the pc would make a noise as if the phone was turning on, but when i connected to the actual charger is when the 60sec thing actually worked , also i noticed that when i finally got it on the battery was down to 1% maybe some sort of battery issue. maybe let it set on the actual wall charger for awhile and try again.
vesheljinn said:
Did that for ~2 minutes, still nothing. Forgot to mention, when I connect it to the PC I get Handset Diagnostic Interface as a connected device.
Click to expand...
Click to collapse
Do the 4th category brick repair guide. Yes,you have to tear apart the phone, but I did this and didn't break it idk
No USB jigs or weird cables will work, you need to use the test pad to get into EDL.
There is another way though: it seems that if you discharge the phone completely, then hold vol down and power, and try a bunch of times, you might be able to get into FTM mode. You'll have adb from there, so you can do 'adb reboot edl' and use MiFlash to fix the software. But I haven't tried
Ok so before I started writing this I had only one problem now I'm worried my problem has gone from bad to worse.
I updated my 6T to 10.3.2 from the latest Beta after the process it prompted for a restart, upon restarting it got stuck in the boot animation. I tried going into Recovery and Download mode unsuccessfully so I went through the forums a bit and saw that someone who had the same problem successfully entered Recovery mode by pressing VOLUME UP+DOWN+POWER buttons simultaneously, I tried to do the same and my phone turned off and now it doesn't turn on! :crying:
Has anyone experienced this or know how to fix this? Any help will be much appreciated. Tia!
theDUD3 said:
Recovery mode by pressing VOLUME UP+DOWN+POWER buttons simultaneously, I tried to do the same and my phone turned off and now it doesn't turn on!
Click to expand...
Click to collapse
These should be clarified:
Volume Up + Power while turning on will boot to fastboot.
Volume Down + Power while turn on will boot to recovery.
Holding Volume Up + Power should force the phone to turn off.
Volume Up + Volume Down should put your phone in Download mode for the MSM Tool.
Turn the phone off, let it sit. Then try turn it back on. Any response?
try to shutdown phone ...hold vol+ and power button for like 15 sec and restart your phone if this didnt work then u can try MSM tool
Thanks guys, got it working using MSM Tool!
regarding oneplus 6 got stuck on logo screen and recovery mode not working
was just going through some random stuff on my phone and suddenly my device automatically restarted and not it is stuck on logo screen. i and when i tried to open recovery mode, nope its is just not working either. i even tried the fastboot menu to open recovery settings but still no progress help me here...its urgent going though lockdown in country so no service either cant communicate with the fam also. HELP...!!!!
frankynehemimah said:
was just going through some random stuff on my phone and suddenly my device automatically restarted and not it is stuck on logo screen. i and when i tried to open recovery mode, nope its is just not working either. i even tried the fastboot menu to open recovery settings but still no progress help me here...its urgent going though lockdown in country so no service either cant communicate with the fam also. HELP...!!!!
Click to expand...
Click to collapse
You are likely going to lose your data. Know that going in if its not already backed up.
If you have the fastboot menu you can use the fastboot roms.
Or my least favorite option or what I would try last, MSM Tool (Tmobile 6Ts use a different tool).
IMPORTANT if you want to try and recover and data off your phone first, go to fastboot, and try and "boot" the TWRP img (not the installed one, one from your PC using the fastboot command). If that works you might be able to recover data. If that does worm, try dirty flashing the last ROM you were running and see if it boots.
No worries!
frankynehemimah said:
was just going through some random stuff on my phone and suddenly my device automatically restarted and not it is stuck on logo screen. i and when i tried to open recovery mode, nope its is just not working either. i even tried the fastboot menu to open recovery settings but still no progress help me here...its urgent going though lockdown in country so no service either cant communicate with the fam also. HELP...!!!!
Click to expand...
Click to collapse
Hello, I am sorry to hear of you having this issue, I just went through 3 1/2 days (off and on) of recovering my T-Mobile OnePlus 6t which I found a way to get my unlock code within 2 weeks of having it, so I rooted it and put a custom kernel on it, stuck on 9.0 never let me update as I was not familiar with A/B partitioning, yet! The answers I saw to your questions were spot on, I just had a little to add to it and I'm sure I am not alone. Real quick let me list what has gone wrong on the rare occasion it hit the fan with the 6t...
- When I would accidentally and rarely let my battery die it seemed like it took forever to get it to reboot, I mean it sat on my desk of DOA devices for 2 weeks!
- It often seems like the buttons do not always respond properly and never have when I needed them to. Been through this before, I've bricked and unbricked and flashed and re-flashed and wiped all weekend and I like Android 10 and all but seems everything is different for every build, and everything seems to have to go in the right order with the exact right file or you wind up in a jam, period..
- That said, the previous person that answered your question has likely encountered similar, I've heard of right down to the buttons not physically working, but I have been a Smart Device Master III Technician for over 5 years, i know my buttons were not broken.
- Most likely culprit that I just handled and worked, i did have to use the MSM tool, several times - and re-unlock the BL, several times I would not even get the chance to get to fastboot, just a screen saying Build and Hardware not a match"" in yellow letters and it just bootlooped. No fastboot is no good, but when you said the tool would show some signs of working but then not, I have 2 solutions that I needed on diffrent occcasions.
1 - As mentioned fully try other USB cables, and ports, if you pull the usb-c out of the port and hold <power + vol up + vol down> eventually it will do something, very picky, sometimes gotta move your fingers to different spots on the buttons and also after 15-20sec let go of power and hit and hold it again... after a few seconds before it vibrates stick the cable in connected to your PC and the screen will be black (obv) but the msm tool will pick up on it. I know about the cables because I take good care of my phones and cables and charging ports, however on my final fix today it showed in msm tool it was connected but waiting for device.... Fed up i put the phone down and moved the usb cable a little bit and it picked up on it and did its thing! That part was just the cable, getting into qualcomm mode or w.e. is a bit tricky sometimes.
- Also someone said set it down for a while and come back to it.. THAT WORKS!! Let it fully charge and often just plugging in charger turns it on, bootloop soft brick or however have you, very simiilar to an Apple device and their DFU (don't f up mode cause screen is black..)
I hope that helps you get in touch with your family and friends.. Whatever you do, don't give up bc if you have not got it yet, you will! One other note, there are a few different msm tools available and they look the same some same size, but the one that supposed to work on my phone didn't and one that they say only a fool would attempt to try actually saved me, so if all else fails, use a different msm tool/usb cable and you will get it! I don't think I can post links yet I am on here very rarely, but plan on more! I have received so much help from XDA throughout the years on thousands of phones with just software issues alone, aas well as guides to my own phones. I would be honored to give back as I also have some extensive knowledge on many devices but I am a noob in comparison to many! Stay safe, good luck and please update and let us/ me know how it worked out for you. If i can help further I will, I have every firmware file for the OP6t, recovery, tools, software, this is not new to me but I feel your frustration!