I think this should work for people who cannot get into recovery mode, computer cannot detect the phone or have security error message.
How I bricked my LG-E450b
I thought rooting for this phone was like my Samsung phone, so I installed Kingo-oneClick-root, got root and deleted all of the bloatware.
Little did I know that I could actually brick my phone by deleting some LG apps (Stupid LG).
Symptoms of my bricked phone
Secruity error message
Phone would not be able to go into recovery mode (Volume down + Camera button + Power button). It would restart after 3 seconds or so after the android loading gif.
Phone would not be detected by the computer
LG support tool could not detect phone (since computer cannot detect phone)
LG support tool would stop at 4% when trying "upgrade recovery"
I was basically stuck and thought my phone was hard bricked. So I started playing with the phone hoping for some magic thing to happen and I got lucky!
How I fixed my issues
Remove case and connect the phone into the computer with standard usb cable
Power into recovery mode (Volume down + Camera button + Power button)
Just before the phone displays the security error, remove the battery (phone still connected to computer).
Put battery back in and turn on the phone normally (no recovery mode)
If it worked then there should be a white message on the bottom left of the phone saying "Download mode: "
Optional: If the computer shows that the device attached has an error then you are in the right direction! Go into device manager (run devmgmt.msc) and right-click on the device that is not detected and uninstall
Optional: Hold power button until the device shuts down and repeat from step 2, the next time you get into download mode the computer will detect your device
Open the LG Support Tool (almost done) (attached in this other forum post)
The phone should get detected by by the LG support tool. Try to update the firmware. If the Support tool says that you already have the latest firmware then go in Options->Upgrade Recovery and put the model number or IMEI/ESN/MEID of the phone and click ok; the recovery process will start and your phone should work
Note: If the phone is not detected by the LG Support tool, then it will not work (it will stop at 4% when doing the upgrade recovery). The phone has to be detected for this to work.
Conclusion
These are things that worked for me, but I am no expert. This is not a full proof guide and I am only posting the steps that made the phone work. It might possibly be that you don't have to do all the steps described above to get into download mode, i.e you would just have to remove the battery at the right time to activate the download mode.
I am posting this describing the exact steps I took, so this can hopefully work for someone else.
Good luck!
TL,DR : Remove battery just before the security error message and reboot phone to get into download mode.
So this morning I was trying to unroot my phone and return it to stock. I found a ROM and was going to use TWRP to flash it on and then replace the recovery with stock... except the ROM I found soft bricked my phone. OK not ideal but found a work around in the Sideload function.
I downloaded ViperROM and it was copying across but got stuck on 7% for ages. The screen was black but vibrating to the power button. After ages I assumed it has crashed so I yanked out the cable and tried to turn my phone off and on again... it doesn't turn off. It just vibrates away when I press the top button. So not only do I have a phone with no OS, I can't get it to turn off and on again.
When I reconnect it to my computer and enter adb devives I can see it's still in Sideboot mode. When I try to "adb reboot bootloader" I get "error: closed".
Any ideas on how I can at least get my phone to load the recovery again?
Phone: HTC One M8
Original OS: Lolipop 5.0.1
Computer: Mac
Please help!
Should just have to keep holding the power button. Might take like 30 seconds, but should eventually restart.
So i was using RessurectionRemix (a version from last month) and recovery twrp 3.1.0-0 and the phone was working great!
Yesterday i left my phone charging over night and in the morning i wake up to my phone bootlooping!
So i tried different things including everything it says here https://forum.xda-developers.com/le-max-2/how-to/guide-hard-brick-fix-qualcomm-hs-usb-t3492949 without luck
I can get it into recovery and fastboot but as soon as i let the key combination go the phone stops and just shows a black screen (screen is on) and i cant get into qualcomm recovery to flash!
And the only way to shut off the phone is by holding power + vol up + vol down!
Any solution or suggestions?
Use flashone method to unbrick
md07 said:
Use flashone method to unbrick
Click to expand...
Click to collapse
As i already mentioned i cant get into qualcomm recovery so i cant use flashone
try to flash fastboot rom from cucoco's.
Tsoler said:
As i already mentioned i cant get into qualcomm recovery so i cant use flashone
Click to expand...
Click to collapse
connect phone to computer, try force shutdown phone by hard button, ater phone shutdown, immediately release power but keep both volume. Phone maybe will enter Qualcomm flash dead mode, and Flashone will regconize com phone (refresh nedded)
Hope you success ! And believe, if a phone can flash with Qfil or Flashone, almost that phone never die (software)
Are you able to connect to the phone via Vysor, either via Chrome browser or as a standalone app on Windows PC when you do not see anything on the phone screen? Please post if Vysor install goes thru successfully. Hope your developer options/USB debugging are on. I assume your phone boots but may have display issues either hw or sw.
md07 said:
connect phone to computer, try force shutdown phone by hard button, ater phone shutdown, immediately release power but keep both volume. Phone maybe will enter Qualcomm flash dead mode, and Flashone will regconize com phone (refresh nedded)
Hope you success ! And believe, if a phone can flash with Qfil or Flashone, almost that phone never die (software)
Click to expand...
Click to collapse
Did what you said but nothing happens
kayyappan said:
Are you able to connect to the phone via Vysor, either via Chrome browser or as a standalone app on Windows PC when the you do not see anything on the phone screen? Please post if Vysor install goes thru successfully. Hope your developer options/USB debugging are on. I assume your phone boots but may have display issues either hw or sw.
Click to expand...
Click to collapse
Phone gets recognized but not long enough to do anything (windows makes sound but doesn't install anything and doesn't show up in device manager)
try this guide
https://www.gizmochina.com/2016/11/20/leeco-x820-max-2-super-unbrick-guide/
You have mentioned that you are able to see the device in recovery and fastboot till you release the buttons - does this mean if the buttons are held say in fastboot mode you are able to see the device via "fastboot devices" or in recovery the twrp screen or nothing ever shows up at all? Are the buttons clicking properly? Check individually to make sure - particularly the power button. Does it vibrate at any point of time when you press and hold the power button? Are you able to see any backlight when you say the screen is on?
If there no backlight shine a torch or sunlight from the side of the screen to see anything at all on the screen.
Vysor reports apk not installed when it attempts to download from PC to phone but fails. With Vysor you will have two windows one showing status of phone - this is the main window. The other is the mirrored one - that of the phone when you click view on the main window. I forgot that the phone requires approval to install the apk. Please see the attached thumbnails. Keep touching the screen about 3 cms up from the bottom of the screen (not the phone) to see any change. Hope your touch works.
I know it is quite frustrating to try a number of things. I recently went thru the same on Galaxy S4 to make sure the phone but for the screen works OK prior to ordering the screen. Besides in my case developer options was disabled and touch also did not work. It took about a week of learning and trying to see something on Vysor. I never have used a Sam phone till that time this broken phone was handed over to me.
After a lot of trying i found out that when i keep pressed power + vol down or vol up while connected to pc and device is off it gets recognized as
qualcomm hs-usb qdloader 9008 long as i keep the keys pressed so i tried the flashone method but it just says could not connect
Are Qualcomm drivers loaded on your computer? I have not used flashone. I used QPST to see if phone is connected. I am not sure if they are same.
kayyappan said:
You have mentioned that you are able to see the device in recovery and fastboot till you release the buttons - does this mean if the buttons are held say in fastboot mode you are able to see the device via "fastboot devices" or in recovery the twrp screen or nothing ever shows up at all? Are the buttons clicking properly? Check individually to make sure - particularly the power button. Does it vibrate at any point of time when you press and hold the power button? Are you able to see any backlight when you say the screen is on?
If there no backlight shine a torch or sunlight from the side of the screen to see anything at all on the screen.
Vysor reports apk not installed when it attempts to download from PC to phone but fails. With Vysor you will have two windows one showing status of phone - this is the main window. The other is the mirrored one - that of the phone when you click view on the main window. I forgot that the phone requires approval to install the apk. Please see the attached thumbnails. Keep touching the screen about 3 cms up from the bottom of the screen (not the phone) to see any change. Hope your touch works.
I know it is quite frustrating to try a number of things. I recently went thru the same on Galaxy S4 to make sure the phone but for the screen works OK prior to ordering the screen. Besides in my case developer options was disabled and touch also did not work. It took about a week of learning and trying to see something on Vysor. I never have used a Sam phone till that time this broken phone was handed over to me.
Click to expand...
Click to collapse
It doesn't stay long enough in recovery or fastboot to do anything it shuts off after a few seconds even with the buttons pressed after that it just shows a black screen
Phone vibrates when i press power and shows leeco logo (not os logo) and after 1-2 seconds screen goes black and phone vibrates again and shows leeco logo again and just continues looping
if i try to press power + vol up normally it goes into recovery but as soon as recovery is loaded screen goes black (screen on just doesn't show anything) the same goes for fastboot if i press power + vol down it loads fastboot but after 1-2 seconds screen goes black
if i keep pressing keys the phone just stays longer in recovery/fastboot but only 4-5 seconds
I assume you have adb and fastboot. Since you say the screen remains on when booting to recovery open a command prompt at the directory where adb is and issue a command "adb devices" without quotes. Does it just exit without showing any device or throws up some error? Try this irrespective of the black screen.
Have you looked at and tried what is given by @HTC-TYTN2 at post #8? It is for Le Max 2 and you will find a link to Quallcomm drivers too. Do not bother that the link mentions X820 even your Max 2 is 821, 829, etc.
since it happened after charging, you might want to check your cable and battery. best is to get a cheap usb multimeter.
Gesendet von meinem LEX820 mit Tapatalk
I too thought it could be the battery based on that's the screen goes off. But he also mentioned that the screen remains on but nothing to be seen after a short while. Wanted to suggest slow speed charging probably via a laptop usb as I'm not sure if he used high speed charging resulting in battery issue.
Did you solve the problem?
My phone just died completely! No response at all anymore. I'm contacting the seller now to send the phone back.
Looks like it is a hardware defect! A pretty odd one but nothing i can do anymore. I send it back and post what the problem is as soon as get any information.
Thanks to everyone who tried to help!
Tsoler said:
My phone just died completely! No response at all anymore. I'm contacting the seller now to send the phone back.
Looks like it is a hardware defect! A pretty odd one but nothing i can do anymore. I send it back and post what the problem is as soon as get any information.
Thanks to everyone who tried to help!
Click to expand...
Click to collapse
Try this:
https://www.androidfilehost.com/?w=files&flid=136823
download file, unzip, open folder, connect phone to USB via fastboot ( phone off phone + hold volume -) . Click to the flash app in your PC. The app should find the phone. Confirm TWRP problem -NO and start flash.
Drivers must be installed.
Drivers here.
https://uloz.to/!A6B4AmEVx87S/adbdriverinstaller-exe
I can, pass the cuoco rom by qfil? Another type of flash, because I can not access recovery and twrp ?, only by fastboot
RaphaBraga23 said:
I can, pass the cuoco rom by qfil? Another type of flash, because I can not access recovery and twrp , only by fastboot
Click to expand...
Click to collapse
Try this via fastboot mode.:
https://www.androidfilehost.com/?w=files&flid=136823
download file, unzip, open folder, connect phone to USB via fastboot ( phone off phone + hold volume -) . Click to the flash app in your PC. The app should find the phone. Confirm TWRP problem -NO and start flash.
Drivers must be installed.
Drivers here.
https://uloz.to/!A6B4AmEVx87S/adbdriverinstaller-exe
Hi everyone,
Looking for some help on my phone which is the only one I have unfortunately
So basically the Honor 9 is showing only the logo then just a black screen. One time it vibrated afterwards when pressing the volume buttons and made the camera sound. So it seems it might have booted but nothing is showing?
Phone did fall before, but worked afterwards.
I cannot access Emui recovery (when pressing volume up+power, it just shows the logo and black screen), but I can access fastboot.
If I plug it to charge, it shows the charging logo fine.
Bootloader is not unlocked. Nothing custom has been installed.
I already tried Hisuite recovery mode, but it said the device is not supported.
Any advice on what I could try? I searched the forums but couldn't figure out what to do. Any suggestion would be much appreciated.
Thank you!
bleepop said:
Hi everyone,
Looking for some help on my phone which is the only one I have unfortunately
So basically the Honor 9 is showing only the logo then just a black screen. One time it vibrated afterwards when pressing the volume buttons and made the camera sound. So it seems it might have booted but nothing is showing?
Phone did fall before, but worked afterwards.
I cannot access Emui recovery (when pressing volume up+power, it just shows the logo and black screen), but I can access fastboot.
If I plug it to charge, it shows the charging logo fine.
Bootloader is not unlocked. Nothing custom has been installed.
I already tried Hisuite recovery mode, but it said the device is not supported.
Any advice on what I could try? I searched the forums but couldn't figure out what to do. Any suggestion would be much appreciated.
Thank you!
Click to expand...
Click to collapse
Hello.
I know it is close to a year now, but just in case there is someone else out there looking to solve something like this. Just make sure to have a wifi connection through which you can download your firmware and recovery through the eRecovery panel. The downloads should be around a total of 4GB, so bear that in mind.
When you are set with your wifi access do the following (feedback will be appreciated):
- plug your phone to your computer and hold down the vol up + power button to boot into eRecovery
- in the eRecovery panel, choose to download firmware and recovery and it will launch a wifi connection
- connect to your wifi
- download the firmware and recovery accordingly
- once completed, you can proceed to update/upgrade (basically to install) it via the eRecovery
- once the upgrade/update/installations are complete, you can reboot.
- just know that everything on your device will be lost - full system and sdcard wipe will be made.
I hope you find the above helpful for you.
I was trying to root it but now when I turn it on I get the typical "your device is corrupt", then the "your bootloader is unlocked" message, I try to continue but it gets to the google logo screen then just reboots again. Do I just have any options or should I just send it in for recycling?
--edit--
Ok managed to get out of bootloop, for anyone experiencing this problem in the future get past the locked bootloader screen window 3 times, then let your phone sit and make sure it's not plugged in/charging, let it sit and it will eventually power down. Then you can get into recovery mode with power + volume down, then when you see the recovery logo power button + volume up. Then you can flash it.
Letting it fail 3 times and unplugged was the key for me, i don't know why maybe it was just my build (i think it was the nov build) but everything else just resulted in endless looping.
If you're able to access the bootloader, download the latest factory image from Google and flash it. That will get you up and running again.
nodozz said:
I was trying to root it but now when I turn it on I get the typical "your device is corrupt", then the "your bootloader is unlocked" message, I try to continue but it gets to the google logo screen then just reboots again. Do I just have any options or should I just send it in for recycling?
Click to expand...
Click to collapse
You clearly have not done any research beforehand. It is always best to have a plan B before modding, so you can get back to square one.
Try reading the Pixel rooting guides to get the logictics of what is going on.
You should be alright,
Download image from here https://developers.google.com/android/images end extract onto your computer.
hold the power button down for like 30 seconds to power off phone then hold power + volume down to get into fastboot
with phone connected to computer go into extracted image and click flash-all. bat for windows or flash-all.sh for linux. Let it run. This should get you back to bootable OS.
[Sorry I'm a n00b on Pixel phones.]
Do these things have EDL mode? Other than physically breaking the phone, EDL on a OnePlus (my last few phones) would absolutely save your bacon no matter how bad you soft-bricked the phone.
SomeRandomGuy said:
[Sorry I'm a n00b on Pixel phones.]
Do these things have EDL mode? Other than physically breaking the phone, EDL on a OnePlus (my last few phones) would absolutely save your bacon no matter how bad you soft-bricked the phone.
Click to expand...
Click to collapse
The Pixel 2 XL did, but even if the 6 had that mode it wouldn't help. Google doesn't release EDL images for its devices.