Develop Bugs

LG G4 H815 frozen on LG logo after attempting root/TWRP

Attempted to root phone use ADB and fastboot.
during process noticed difficulty in getting recovery mode open manually and had to use adb reboot recovery, whereupon android recovery picture was there but no menu options.
Could not install TWRP conventionally thus attempted the method shown here.
"NSTALL TWRP
Make sure you have ADB and Fastboot installed.
I always put TWRP.img in the ADB folder - so if I want to boot into TWRP with out installing it this is what I do:
make sure you open a command prompt in the ADB folder "VERY IMPORTANT" and type:
adb reboot bootloader <enter>
fastboot boot TWRP.img <whatever your TWRP image is called in your ADB folder><enter> dont forget the .img at the end
That will re-start your phone straight into TWRP - You can transfer files to and from your computer while in recovery.
If you want to install TWRP permanently, copy your TWRP image to your mobile "while you are in TWRP RECOVERY mode" then press install, then select images, then select recovery NOT BOOT, then swipe to flash. This method does not install TWRP app on your phone, all you need is a reboot app from the play store that will re-boot you into recovery. "
Flashed both twrp image and super-su within the TWRP booted from pc through adb (as shown in the previously mentioned method).
Upon reboot phone has hung at LG symbol. LED is flashing. ADB recognises device as connected however won't respond to reboot requests.
How do i fix this?

GhostlessShell said:
Attempted to root phone use ADB and fastboot.
during process noticed difficulty in getting recovery mode open manually and had to use adb reboot recovery, whereupon android recovery picture was there but no menu options.
Could not install TWRP conventionally thus attempted the method shown here.
"NSTALL TWRP
Make sure you have ADB and Fastboot installed.
I always put TWRP.img in the ADB folder - so if I want to boot into TWRP with out installing it this is what I do:
make sure you open a command prompt in the ADB folder "VERY IMPORTANT" and type:
adb reboot bootloader <enter>
fastboot boot TWRP.img <whatever your TWRP image is called in your ADB folder><enter> dont forget the .img at the end
That will re-start your phone straight into TWRP - You can transfer files to and from your computer while in recovery.
If you want to install TWRP permanently, copy your TWRP image to your mobile "while you are in TWRP RECOVERY mode" then press install, then select images, then select recovery NOT BOOT, then swipe to flash. This method does not install TWRP app on your phone, all you need is a reboot app from the play store that will re-boot you into recovery. "
Flashed both twrp image and super-su within the TWRP booted from pc through adb (as shown in the previously mentioned method).
Upon reboot phone has hung at LG symbol. LED is flashing. ADB recognises device as connected however won't respond to reboot requests.
How do i fix this?
Click to expand...
Click to collapse
use you variant KDZ file and flash it with LGUP.

raptorddd said:
use you variant KDZ file and flash it with LGUP.
Click to expand...
Click to collapse
That worked very well. Thankyou raptorddd.
Praise him. Praise him with great praise.

Cant boot to recovery

Hello guys,
After doing oem unlock with fastboot ,i've tried to flash TWRP recovery but after the comand i cannot acess recovery, it just reboots. Tried several recovery images and read alot of toturials but with no sucess!! Win10 64bits computer here.
Thanks,
NightSource

Nightsource said:
Hello guys,
After doing oem unlock with fastboot ,i've tried to flash TWRP recovery but after the comand i cannot acess recovery, it just reboots. Tried several recovery images and read alot of toturials but with no sucess!! Win10 64bits computer here.
Thanks,
NightSource
Click to expand...
Click to collapse
Did you hold the volume down button + power button to get to recovery mode manually right after flashing?
Gesendet von meinem ONEPLUS A3003 mit Tapatalk

If you have successfully unlocked the bootloader, you'll get a bootloader unlocked warning every time you boot. On the warning screen, click either of the volume buttons and you'll be redirected to a bootup menu. From there, you can select "boot to recovery" using the volume rocker and power button.
Alternatively, enable "advanced reboot" in developer options and reboot to recovery from the main OS power menu.
If these don't work, reflash TWRP using fastboot. Make sure that you're using at least version 3.0.3-1, best to use 3.0.4-1.

Tried manually reboot into recovery but it just reboots,
I can sucessfully unlock as i have the warning on boot, but there if i go to the menu and press for recovery it just reboots, tried several tipes of recovery TWRP imgs
Any help greatly wanted

Download this version of TWRP (jcadduono's 4.0.3-1). Rename the file to something like twrp.img.
1) Make sure adb/fastboot is working on your computer (if you've already unlocked the bootloader, then I am assuming it is).
2) Put your phone into fastboot mode and connect it to your computer. Open a command prompt where you can access fastboot.
3) Put the twrp.img file to the same folder where you opened your command prompt.
3) Enter
Code:
fastboot devices
in fastboot and make sure your phone shows up with its serial number.
4) Enter
Code:
fastboot erase recovery
to erase your current recovery
5) Enter
Code:
fastboot flash recovery [B]twrp.img[/B]
, where twrp.img is whatever you named your twrp file.
6) Enter
Code:
fastboot reboot
to reboot into your main system. You can either reboot then use advanced startup to enter recovery, or press a volume button at the bootloader warning page to boot directly to recovery.

Anova's Origin said:
Download this version of TWRP (jcadduono's 4.0.3-1). Rename the file to something like twrp.img.
1) Make sure adb/fastboot is working on your computer (if you've already unlocked the bootloader, then I am assuming it is).
2) Put your phone into fastboot mode and connect it to your computer. Open a command prompt where you can access fastboot.
3) Put the twrp.img file to the same folder where you opened your command prompt.
3) Enter
Code:
fastboot devices
in fastboot and make sure your phone shows up with its serial number.
4) Enter
Code:
fastboot erase recovery
to erase your current recovery
5) Enter
Code:
fastboot flash recovery [B]twrp.img[/B]
, where twrp.img is whatever you named your twrp file.
6) Enter
Code:
fastboot reboot
to reboot into your main system. You can either reboot then use advanced startup to enter recovery, or press a volume button at the bootloader warning page to boot directly to recovery.
Click to expand...
Click to collapse
Sometimes it helps to use fastboot to boot the image directly after you flash it. This ensures you get into recovery since it loads it off your computer.
It should then work normally afterwards
Sent from my ONEPLUS A3000 using Tapatalk

problem with fastboot twrp flashing

my device came with unlocked bootloader, so I tried to flash twrp but every time i type "fastboot flash recovery C:\adb\twrp-3.2.1-3-whyred.img" and hit enter, the device seems to disconnect from pc and there is "press any key to reboot" in fastboot on my phone.
How can I solve this issue?`
Phone gets detected by adb/fastboot tool so its not a driver problem. I tried different cables and usb ports aswell.
Firmware is latest global stable.

Nazukii said:
my device came with unlocked bootloader, so I tried to flash twrp but every time i type "fastboot flash recovery C:\adb\twrp-3.2.1-3-whyred.img" and hit enter, the device seems to disconnect from pc and there is "press any key to reboot" in fastboot on my phone.
How can I solve this issue?`
Phone gets detected by adb/fastboot tool so its not a driver problem. I tried different cables and usb ports aswell.
Firmware is latest global stable.
Click to expand...
Click to collapse
try upgrade your android sdk on your pc

Nazukii said:
my device came with unlocked bootloader, so I tried to flash twrp but every time i type "fastboot flash recovery C:\adb\twrp-3.2.1-3-whyred.img" and hit enter, the device seems to disconnect from pc and there is "press any key to reboot" in fastboot on my phone.
How can I solve this issue?`
Phone gets detected by adb/fastboot tool so its not a driver problem. I tried different cables and usb ports aswell.
Firmware is latest global stable.
Click to expand...
Click to collapse
Well if you already had adb in your pc, rename the twrp file to recovery, you don't have to move the twrp from download folder, open download folder press shift and right click then select open cmd here, on cmd type "adb device" to see if your device connected, then after that type this "fastboot flash recovery recovery.img" press enter than after that type "fastboot boot recovery.img" TEAMWIN logo should appear on your device and then you can unplug your device. Hope this useful

i am trying to flash twrp there is no folder called adb i have installed the 15 second adb and all so i have got this minimal adb flashboot and i tried with that and got this ---- FAILED (remote: Flashing is not allowed in Lock State). i have granted all usb and oem unlocking. please help with this

Phone shows unlocked during the boot?
I had the same Problem,after a Factory Reset works for me.
I am on Miglobe-Rom Miui10 8.6.28.
Minimal ADB is enough.
Or use this from Attachment.
Unpack with Win.zip and copy Twrp in this Folder.
Conect the Phone with your Pc ,boot into Bootloader and click "cmd-here.exe"
Use this Command
fastboot flash recovery twrp-3.2.1-3-whyred.img

@Nazukii - Quick question - any chance you could try running GameBench on your device, and see if our background service dies when the device is disconnected from the PC? I don't have a Note 5 Pro to test, and I've got some user complaints. Any assistance would be awesome!
J

gamebenchjake said:
@Nazukii - Quick question - any chance you could try running GameBench on your device, and see if our background service dies when the device is disconnected from the PC? I don't have a Note 5 Pro to test, and I've got some user complaints. Any assistance would be awesome!
J
Click to expand...
Click to collapse
Have you fixed your app to run on Magisk-SU ?

otonieru said:
Have you fixed your app to run on Magisk-SU ?
Click to expand...
Click to collapse
Hey Otonieru,
Not yet, but I've got one of the engineers working on it - hopefully it'll be up in the next 30 days or so

Same problem here after updating my gcam was not working was enabling hall again but it is not booting into twrp

Redmi Note 5 pro
So my Bootloader is locked,
My phone stuck in MI recovery idk how.
I cant install MIUI via fastboot. Im stuck ..
Can anyone please help me here not sure how to proceed further.

If you have made sure that you have all the drivers installed and still have not solved, you need to use an Intel-based PC / notebook and use a usb 2.0.

”Well if you already had adb in your pc, rename the twrp file to recovery, you don't have to move the twrp from download folder, open download folder press shift and right click then select open cmd here, on cmd type "adb device" to see if your device connected, then after that type this "fastboot flash recovery recovery.img" press enter than after that type "fastboot boot recovery.img" TEAMWIN logo should appear on your device and then you can unplug your device. Hope this useful”
i did that but it is showing failed（too many links）and "press any key to reboot" showing on my phone's fastboot screen

Fastboot boot recovery.img flashing problem on Redmi note 5 pro
My bootloader is unlocked and my oem as well as usb deb is on. After i connect my phone in fastboot mode to my pc. The cmd shows fastboot devices but when it comes to fastboot boot recovery.img flashing device get disconnected. Plzzzzzz let me know a solution for this. A solution for this will be highly appreciateable.

OP3 Broken screen - how to extract data?

Hi,
I have OP3 with broken screen but it turns on (there is a LED blinking , and on my computer I see the OP3 CD installation & the device but I cannot access the data)
TWRP is the bootloader , how can I extract the data?
drivers are installed and tried some threads search on the furom but none of them worked for me
on fastboot devices it doesnt see it

Lellouche said:
Hi,
I have OP3 with broken screen but it turns on (there is a LED blinking , and on my computer I see the OP3 CD installation & the device but I cannot access the data)
TWRP is the bootloader , how can I extract the data?
drivers are installed and tried some threads search on the furom but none of them worked for me
on fastboot devices it doesnt see it
Click to expand...
Click to collapse
Insufficient info.
Are you able to boot up? Are you able to boot to bootloader? Do you have TWRP and are you able to boot to it?
Is your bootloader unlocked? Are you rooted? Is USB debugging enabled?
Does "adb devices" / "fastboot devices" command find your phone? What ROM?

tnsmani said:
Insufficient info.
Are you able to boot up? Are you able to boot to bootloader? Do you have TWRP and are you able to boot to it?
Is your bootloader unlocked? Are you rooted? Is USB debugging enabled?
Does "adb devices" / "fastboot devices" command find your phone? What ROM?
Click to expand...
Click to collapse
sorry ,
I think I am able to boot to the bootloader (but I cannot see it since my screen is broken)
my bootloader is unlocked , device is rooted and USB debugging is enabled
while pressing Power+Vol UP I can get into fast boot and see my device on fastboot devices
anything else I need?

To clear things up, TWRP is recovery and not bootloader. Fastboot is bootloader.
So, if you can boot into TWRP, you should be able to use adb commands. Try booting into it, then try "adb devices" and see if it's properly detected (adb reports device's serial number and status "recovery"). You can then use "adb pull" command to get your data.
Sent from my OnePlus 3 using Tapatalk

Explorer23 said:
To clear things up, TWRP is recovery and not bootloader. Fastboot is bootloader.
So, if you can boot into TWRP, you should be able to use adb commands. Try booting into it, then try "adb devices" and see if it's properly detected (adb reports device's serial number and status "recovery"). You can then use "adb pull" command to get your data.
Sent from my OnePlus 3 using Tapatalk
Click to expand...
Click to collapse
my bad , since I dont have a screen , how can I boot into TWRP? is there are "blind commands" you can give me ?

Lellouche said:
my bad , since I dont have a screen , how can I boot into TWRP? is there are "blind commands" you can give me ?
Click to expand...
Click to collapse
Power + volume down should boot directly into recovery.
Sent from my OnePlus 3 using Tapatalk

Explorer23 said:
Power + volume down should boot directly into recovery.
Sent from my OnePlus 3 using Tapatalk
Click to expand...
Click to collapse
Im pressing both for a long time , nothing happens (I guess , since I dont ear any sound and I dont see the device on adb)

Lellouche said:
Im pressing both for a long time , nothing happens (I guess , since I dont ear any sound and I dont see the device on adb)
Click to expand...
Click to collapse
Ok, an alternative then:
- download latest TWRP .img file to your PC
- open command window in folder with the file (Shift + right click > open command window here)
- boot into fastboot (Power + Vol Down) - you said you managed that before - and connect the device to PC. If it's properly detected in fastboot, you can boot custom recovery with "fastboot boot <recovery-name>.img"
Phone should now restart and boot into previously downloaded recovery. Now you can try and see if adb works.
Easier option would be simply "fastboot reboot recovery", but that command is non-standard and doesn't work on OP3 if I remember correctly. You can try though, nothing to lose.

Explorer23 said:
Ok, an alternative then:
- download latest TWRP .img file to your PC
- open command window in folder with the file (Shift + right click > open command window here)
- boot into fastboot (Power + Vol Down) - you said you managed that before - and connect the device to PC. If it's properly detected in fastboot, you can boot custom recovery with "fastboot boot <recovery-name>.img"
Phone should now restart and boot into previously downloaded recovery. Now you can try and see if adb works.
Easier option would be simply "fastboot reboot recovery", but that command is non-standard and doesn't work on OP3 if I remember correctly. You can try though, nothing to lose.
Click to expand...
Click to collapse
That worked for me , Thanks!!

No OS is installed. Moreover recovery cannot be accessed. Nor can flash it via adb.

Previously I was using Ressurection Remix treble rom which is based on android 9 pie. I went to TWRP and wiped the OS. Then I tried to install a new rom called Dot OS. But it showed error 7. So I flashed Vendortofactory zip within twrp and without rebooting again into TWRP I flashed a new TWRP image within TWRP by selecting Recovery mode. After that I cant boot into TWRP and as already my OS is gone I also cannot boot into any system. Moreover my device is not getting detected in my PC. I cannot install TWRP by writing commands in cmd, while the phone is in fastboot mode as the device is not getting detected in my pc. Really it is urgent. I will be glad if someone helps me. Thanks in advance.

What is the present booted state of your device? Are you in twrp, or bootloader. Most of the time you can keep on pressing the power button. When it boots into a message about unlocked bootloader, press volume button to select recovery and it will boot into twrp

You should be able to boot in fastboot mode without recovery nor os, maybe your drivers are not working on windows? Try different usb ports, check if the display says "bootloader" or something. If nothing works try the usb shunt, this device is literally 'unbrickable' if it's working properly.

Watch this video(https://www.youtube.com/watch?v=DexLELi04XY) and then you will be able to detect your phone in your pc in qcom 9008 mode , then use qfil to flash ZUI firmware ,there are plenty of tutorials on the internet for that ,then follow the proper procedure mentioned in DotOs thread for flashing the new rom .
Hope it helped .

If you don't want to flash the firmware and all long process just follow the following steps
Enter in to the boot loader make sure you installed all the drivers in to pc then open cmd windows in adb fastboot folder and enters the following cmd into the cmd
Fastboot -i 0x2b4c devices this will detect your device
After that enter
Fastboot -i0x2b4c flash recovery recovery name.img
And boom you are good to go flash the rom of your choice and enjoy
For this process you need following files
Adb and fastboot devices
Drivers of zuk z2
Latest recovery and place revovery image file into the adb and fastboot folder if you are confused about anything pm me i am not the expert but i faced simillar problem and solved by this method

yashpatel1221 said:
If you don't want to flash the firmware and all long process just follow the following steps
Enter in to the boot loader make sure you installed all the drivers in to pc then open cmd windows in adb fastboot folder and enters the following cmd into the cmd
Fastboot -i 0x2b4c devices this will detect your device
After that enter
Fastboot -i0x2b4c flash recovery recovery name.img
And boom you are good to go flash the rom of your choice and enjoy
For this process you need following files
Adb and fastboot devices
Drivers of zuk z2
Latest recovery and place revovery image file into the adb and fastboot folder if you are confused about anything pm me i am not the expert but i faced simillar problem and solved by this method
Click to expand...
Click to collapse
This assumes u have upgraded bootloader to 4.4 kernal.
U can still boot into twrp.. When the phone is booting up press vol up key and select recovery.. From there boot into twrp. There select f2v or v2f .. Then flash twrp which u want to flash.. Reboot to recovery.. U will get promp no os installed.. Ignore and reboot to recovery . Then again d9 f2v or v2f depending on what rom to install.. Again reboot to recovery... Then flash rom of ur choice.
This procedure is needed when changing from vendor to factory and vice versa.

sanjay.2704 said:
This assumes u have upgraded bootloader to 4.4 kernal.
U can still boot into twrp.. When the phone is booting up press vol up key and select recovery.. From there boot into twrp. There select f2v or v2f .. Then flash twrp which u want to flash.. Reboot to recovery.. U will get promp no os installed.. Ignore and reboot to recovery . Then again d9 f2v or v2f depending on what rom to install.. Again reboot to recovery... Then flash rom of ur choice.
This procedure is needed when changing from vendor to factory and vice versa.
Click to expand...
Click to collapse
I don't understand what you are talking about as i say i am not some kind of technical expert i am here help regarding this i faced similar situation where i am not able to enter into recovery and also not able to enter into the os and when i restart the phone it automatically boot into fast boot mode what ever option i select and i solved my problem by this method