Help ! phone not working - G3 Q&A, Help & Troubleshooting

So i have a Rogers lg g3 (model d852)
The thing is i interrupted it in the middle of an update which was taking too long (was at 20 pourcent and didnt move)
So now its not working, its at a black screen with a flashing red and blue LED.
I was able to fix it before by entering download mode and reflashing the tot but now its worse than ever, before when i plugged it in to charge it showed the charging screen then blacked out and the LED turned on, now it goes to a backlight screen and then continues to a black screen with the LEDs, also i cant access factory reset or download mode.
However there is something Crazy with this phone when i plug it in on the black screen with the blue and red LED and i press volume up my pc detects it as qualcomm HS-USB qdloer however when i try boardiag 3.99 it says error device was not found in dload trying flash programmer.
So do i have to abandon and buy a new phone or can i do something about it
Any help is apreciated
Eghtesad

SO guys the thing is that i was able to run an sdram test that the phone past (willcrack 2.99) however still no dnload mode nor factory reset

Related

[Q] Lost recovery

The title explains everything.
Some how i lost recovery and after the try to flash the latest updates by lg stacked at a black screen while led changes from red to green color. Pulled out the battery but phone only boots to the same.
Until now phone is unusable.
Any fix would be appreciated.
Try booting into download mode by turning phone off, then press volume up while plugging in usb cable connected to pc. If he does that you can restore by flashing a.kdz

Htc 816g Bricked and wouldn't connect to PC anymore. after installing recovery

Yesterday i attempted to install a custom recovery on HTC desire 816g. using fastboot command the process went fluently in fastboot mode but when i tried to open the recovery from hboot the screen got stuck at htc logo. After a while i gave up soft reset the phone using hardware buttons and since than the major problem began.
On restart the device screen turned blank as in didn't display anything and the red notification led stayed on. It stayed like this forever so i plugged in the charger and reset the phone again . Now it showed me just the battery icon with charging sign in the middle with no signs of how much it is getting charged or how much it is charged. It just stuck on the charging on and of course the red notification led continuously turned on. when unplugged and restarted it again stayed blank with red led on forever. SO i thought if its a mtk chip i would just reset the device by inserting the stock rom using sp flash tool. So i reset my phone where the led turns of for a second and turns i believe which is resetting it and connected the usb and nothing. windows does not simply detect the HTC anymore. SO i opened the device manager to see if it at least shows up as an unknown device in it but nothing. It simply does not show up. I have tried everything. restarting it connecting the usb unplugging the usb before restart on restart after restart all possible combination nothing works. But the led keeps strongly flashing red. So i thought its the battery problem. I kept it as is with red light flashing it discharged on its own and now when i attempted to start it the red led was blinking now. So i put it on charging overnight. And after all efforts its still the same. I need your help the most. Cant loose a phone now. Is it permanently bricked?

Bricked my LGG3

Hello everyone,
so here's my problem:
Wednesday morning i took my phone out of my pocket and had a blackscreen. I tried to restart it and took out the batterie but i always got stuck in the LG Logo or a bootloop. Since i had TWRP and lineage OS installed, i tried to go into the twrp menu with the factory mode (power button + volume down) but after the "double yes" i always got a blackscreen.
So i went into the internet to fix it myself. I tried the "LG Flash Tool 2014" with the kdz. reset & the other Flash tool with the tot. reset. Both didnt recognize my phone. At this point, the only thing that worked was the download mode BUT not the recovery mode that usually comes after it. It just showed the download mode for some seconds and then a black screen. Later i noticed that my phone showed as a "qualcomm device" in the device manager, and the internet said that this was bad. So i used "Board diag" and "Smart boot diag" to fix it, but at the point where the device should have restarted, and the download mode should have worked WITH the recovery mode, i always ONLY had the 6 second download mode. After messing a bit with "Board Diag" i even got it to show up as LGE AndroidNet USB Serial Port in the device manager, which apparently was even more bad and only way to go back to qualcomm was to shorten the pins which i did. And it worked BUT now i was back with the qualcomm stuff.
So as you can see, i've prety much run i circles since wednesday... Iam now at a point where 3 different thingscan happen when I try to put my LG into download mode (volume up + usb cable):
1. Its recognized as a unknown device which is constantly connecting and diconnecting, so iam assuming my phone is bootlooping with a black screen.
2. The download mode icon shows on my phone and disappears after some seconds but my pc fails to recognize it.
3. Nothing happens and the screen stays black
When i only connect the usb cable, it shows a stuck charging icon for some seconds and then goes black. Connecting without a battery shows the "missing battery icon". I tried with 2 pc's, both having the LG mobile driver 4.2 and the qualcomm driver installed AND beeing in testmode. Both don't recognize the device. I also tried 2 batteries on my phone but it changes nothing.
I have a D855. And i know that my situation is pretty f*cked but maybe someone i able to help me anyway. Thanks alot.

Suddenly death, phone apparently death with a white led blinking

First of all I'm sorry if I posted in the wrong section
The problem of my phone is that it is apparently death. I don't know why, because I was using it normally and then after few minute, like 5, when I tried to use the phone it seems to be death. It won't turn on, even when a charger was plugged in. The phone just shows a white led blinking. I tried to turn it on and nothing happened. So I tried to power it whit the volume down button pressed and the fastboot mode appeared. It says battery low (charging) and if I try to choose one of the options nothing appear, just the white led blinking.
I don't know what to do, I would be happy al least I will recovery my internal data (with the app data) using the fastboot mode.
Sorry for my english, I'm begging help.
KurtCobain said:
First of all I'm sorry if I posted in the wrong section
The problem of my phone is that it is apparently death. I don't know why, because I was using it normally and then after few minute, like 5, when I tried to use the phone it seems to be death. It won't turn on, even when a charger was plugged in. The phone just shows a white led blinking. I tried to turn it on and nothing happened. So I tried to power it whit the volume down button pressed and the fastboot mode appeared. It says battery low (charging) and if I try to choose one of the options nothing appear, just the white led blinking.
I don't know what to do, I would be happy al least I will recovery my internal data (with the app data) using the fastboot mode.
Sorry for my english, I'm begging help.
Click to expand...
Click to collapse
Download this files in your computer https://mirrors.lolinet.com/firmwar...76-12-22-10/blankflash_OPNS27.76-12-22-10.zip
connect your cell phone and look for these Qualcomm HS-USB QDLoader 9008 drivers when your cell phone is recognized run the .bat file and with that revive
MirandaEduardo said:
[/url]
connect your cell phone and look for these Qualcomm HS-USB QDLoader 9008 drivers when your cell phone is recognized run the .bat file and with that revive
Click to expand...
Click to collapse
Just this morning I replaced the battery and the phone is back alive.
Btw thank you for the help!

Oneplus 5t black screen unbricktool doesnt seem to work

I've got a dead oneplus 5t from my son. It was not charging anymore.. So I've replaced charging cable and battery.. Seemed to work it was charging... However it doesn't boot... No logo screen screen stays black/blank.
Tried several suggestions on this forum to get into recovery mode, fastboot mode... But still nothing. Only vibrating works after a few seconds.
So tried to unbrick with OP5T_Unbrick_tool_dumpling_43_J.40_181105(OOS.5.1.7) and the qualcomdrivers..
I was able to install the drivers and I see they are installed in devicemanagement.. and an empty folder create for oneplus.
I charged the phone all night and was able to download the upgrade. It then says download complete and I tried to restart the phone..
Still just vibrating but nothing happens.. Seems like everything has vanished from the phone, no recovery, no bootloader, no files.
So how to proceed to get all the stuff on the phone? And maybe the displayscreen is dead, but how can I tell?
Also tried the SMT upgrade. Strange thing is the device and com port are seen in devicemanagement and active when I connect without volume up, but cannot start because it says When I try to use smt mode the program says: "This COM port is disable by user". With volume button up pressed and then connect, ledlight turns green but the qualcomdevice is grayed out in devicemanagement and it says waiting for device..
Any help is welcome. I am a noob in how to proceed on the phone however I have an IT background.
Spent already so many time figuring out .. maybe it's effortless and its for the trashbin.
Thanks in advance
SOLVED
I opened the phone again loosened all those tiny connections to battery, screen,charger, mainboard and re-attached them.. Somehow a connection seemed to be fitting allright as yI looked at it, but apparently wasn't :good:

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