Develop Bugs

Cant enter recovery or download mode

Hello.
I flashed one KDZ for my country and root my E987. I also used freegee to install CWM (it should unlock boatloader I guess).
The problem in that when: phone turning on, trying to enter recovery, fastboot or download mode I have nothing but a black screen.
The phone is working perfectly.
In freegee I see these options: Backuo and restore EFS, Re LOCK and CWM/TWPR installations
What can be wrong??

In Optimus G (E975), should turn of phone completely (press power button for 10 seconds), then press vol up + power to start phone in bootloader. Then press vol down twice and then power button to start recovery.

I tried again but nothing but a black screen
Creative9170 said:
In Optimus G (E975), should turn of phone completely (press power button for 10 seconds), then press vol up + power to start phone in bootloader. Then press vol down twice and then power button to start recovery.
Click to expand...
Click to collapse

So, if you can even access to your bootloader with vol up + power , you can connect phone to PC and flash a recovery image file via fastboot adb. (put your recovery image file in fastboot folder and then open a command prompt in that folder and type:
Code:
fastboot flash recovery recoveryfilename.img
Also maybe on your black screen you can do this.
If not, disconnect phone from PC, turn it off, press vol up + vol down together and connect USB cable, you may see download mode. if you see download mode, following method may help, but I'm not sure about E987! I did this on my phone E975 and it works: http://forum.xda-developers.com/showthread.php?t=2249500
Please consider it may remove all your data including system, userdata, sdcard , etc.
Good luck friend
ErnestoD said:
I tried again but nothing but a black screen
Click to expand...
Click to collapse

E987 is the international E975 but sold in Argentina. Its the same celphone.
I understood what U said and I going to find how/where to find a recovery image
I tried to enter recovery and download mode and always black screen, but phone is properly detected on PC.
I flashed several KDZ´s and same thing.
Thanks for your help
:laugh:
Creative9170 said:
So, if you can even access to your bootloader with vol up + power , you can connect phone to PC and flash a recovery image file via fastboot adb. (put your recovery image file in fastboot folder and then open a command prompt in that folder and type:
Code:
fastboot flash recovery recoveryfilename.img
Also maybe on your black screen you can do this.
If not, disconnect phone from PC, turn it off, press vol up + vol down together and connect USB cable, you may see download mode. if you see download mode, following method may help, but I'm not sure about E987! I did this on my phone E975 and it works: http://forum.xda-developers.com/showthread.php?t=2249500
Please consider it may remove all your data including system, userdata, sdcard , etc.
Good luck friend
Click to expand...
Click to collapse

Your welcome
If you could flash kdz means you can access download mode so you can try that method I've said.
Also you can download recovery images from following links :
CWM: https://www.clockworkmod.com/rommanager
TWRP for Optimus G (Sprint) : http://techerrata.com/browse/twrp2/geehrc4g
ErnestoD said:
E987 is the international E975 but sold in Argentina. Its the same celphone.
I understood what U said and I going to find how/where to find a recovery image
I tried to enter recovery and download mode and always black screen, but phone is properly detected on PC.
I flashed several KDZ´s and same thing.
Thanks for your help
:laugh:
Click to expand...
Click to collapse
Sent from my LG-E975 using Tapatalk

I tried to enter fastboot yesterdar and flash recovery image but I couldnt, But I could enter download mode (remember that I have black screen) and flash another kdz again.
I will try your second suggestion using tinybeen
Thanks for your help. Really appreciate this
Creative9170 said:
Your welcome
If you could flash kdz means you can access download mode so you can try that method I've said.
Also you can download recovery images from following links :
CWM: https://www.clockworkmod.com/rommanager
TWRP for Optimus G (Sprint) : http://techerrata.com/browse/twrp2/geehrc4g
Sent from my LG-E975 using Tapatalk
Click to expand...
Click to collapse

ErnestoD said:
I tried to enter fastboot yesterdar and flash recovery image but I couldnt, But I could enter download mode (remember that I have black screen) and flash another kdz again.
I will try your second suggestion using tinybeen
Thanks for your help. Really appreciate this
Click to expand...
Click to collapse
Your welcome say thanks to autoprime that makes tinybin
Please remember that after tinybin you may see black screen and can't boot android. But fastboot and recovery should work and you can push a flashable zip ROM and flash it through recovery.
Sent from my LG-E975 using Tapatalk

Error message in Recovery Mode

HI..
i first tried to root my asus Zenfone 2 .. installed a custom rom 12.1 for cynogen mod and first there was no network for sim .. then somehow fixing all this i wiped out my data without backup in recovery mode .. and when i tried to install the stock rom .., my phone is giving error message whenever i enter recovery mode.
(also i have tried hard reset like volume up +power button when in theres a error message in recovey mode ) It doesnt work for me or maybe i am not doing it the right way.
Basically i think its BRICKED +an error message in recovery mode .
Will it ever work again ?also please tell me how to get my phone work ..will be really greatful .
Please HELP !

How to Enter "Recovery Mode" on Asus Zenfone 2
Turn Off your Zenfone 2
Hold Power button + Volume up
When the phone is vibrating release the Power button
Then the Display change like this
You can select "Normal Boot" or "Recovery Mode" by pressing Volume Up/Down, to enter Recovery choose "Recovery Mode"
Then you will see sleep Android Robot, Press Power button and Volume up, after one second release the Volume up
You will see Asus Zenfone 2 Recovery Mode
after that follow these steps and BOOM BAM !! I DID IT
Download and Install ADB and drivers on your PC.
Download the latest Stock ROM from the Asus website by visiting the following links. If your device got bricked after a recent OTA software update, wait a few days while Asus uploads the latest Stock ROM. On the page below, select Android as the OS and then expand the Firmware section. For non WW devices, please check your regional Asus website for the download details.
Zenfone ZE551ML Stock ROM
Zenfone ZE550ML Stock ROM
Copy the downloaded Stock ROM to the folder where you installed ADB (Generally C://adb)
In power off state, press and hold the Volume Up key and then press and hold the Power Key till the phone vibrates. Release the power key at vibration, but keep pressing the Volume Up key. Wait for the phone to boot into fastboot mode.
In the fastboot mode, keep pressing the Volume Down key till you see Recovery Mode. Press Power Key to select it.
In recovery mode, select Apply update from ADB.
Connect your phone to the PC and open the ADB folder. Right click while holding down the shift key and choose Open command window here.
Pass the following command in ADB. Replace file.zip with the name of Stock ROM zip (eg: UL-Z00A-WW-2.19.40.22-user.zip) downloaded in step 2.
adb sideload file.zip
Wait for the process to complete as it will take a couple of minutes.
Reboot the phone when it is all done and hopefully your Zenfone 2 will be boot up fine, alive and working again.

no recovery menu - phone restarts everytime i try to enter recovery
actually i rooted my zenfone 2 and there was an OTA and i tried to install it without un-rooting my phone. the phone would not turn on and it gets stuck in the boot animation.
then, i tried installing TWRP but i did not unlock the bootloader and now i am not able to enter in recovery mode either, everytime i try to get in the recovery menu the phone restarts and goes to fastboot menu.
please help.

dip_anker said:
actually i rooted my zenfone 2 and there was an OTA and i tried to install it without un-rooting my phone. the phone would not turn on and it gets stuck in the boot animation.
then, i tried installing TWRP but i did not unlock the bootloader and now i am not able to enter in recovery mode either, everytime i try to get in the recovery menu the phone restarts and goes to fastboot menu.
please help.
Click to expand...
Click to collapse
Does the zenfone2 have a fastboot mode to flash the firmware manually because flashing Ota updates bricks if you never unrooted you phone. So you should just flash the firmware you were already on then unroot then flash the Ota update

DROID_4_UsEr said:
Does the zenfone2 have a fastboot mode to flash the firmware manually because flashing Ota updates bricks if you never unrooted you phone. So you should just flash the firmware you were already on then unroot then flash the Ota update
Click to expand...
Click to collapse
adb is not able to detect my phone. is there any other way to flash the phone ?
and i am just a bit curious to know if its possible to directly flash the phone with CM12.1 without having to go through all those steps (installing the older version and unrooting and installing the OTA) ?
---------- Post added at 05:14 PM ---------- Previous post was at 05:01 PM ----------
and how can i flash the original rom when adb doesn't detect my phone ??

LG G4 H815 Bootloop after flashing SuperSU..

Hi everyone,
yesterday I finally get my bootloader unlocked and I wanted to root my device, flash custom recovery and then flash CM13..¨
I found guide to root android 6.0 because I´m v20a, everything was fine, I booted to recovery via cmd command: fastboot boot recovery_image.img, but I forget to flash kernel and flashed only SuperSU and rebooted. After that I have a bootloop, adb not recognize my phone and LG Flash tool crashes with note: Required data not found. Contact your administrator..
I don´t know what I should do, please help me anybody.. :fingers-crossed:
PS: Sorry for my bad English I´m from Czech Republic..

Hello
Poweroff the phone.
Use key to start in Fastboot (Press Up and power button, release up button for 1-2 sec when LG logo appear and then push it again) and install the recover : fastboot flash recovery_image.img.
Start in recovery and flash CM13, you don't have to root the phone before doing this.
Regards.

same thing happened to me here
h811
flashed cm13
worked ok.. then flashed SUpersu via twrp
( and later found out that cm13 dont need supersu as it is already rooted )
Dumb A... of me!!
now i am in a boot loop cm13
i only see the cm13 boot animation.. and stuck there
phone wont take the :
Poweroff the phone.
Use key to start in Fastboot (Press Up and power button, release up button for 1-2 sec when LG logo appear and then push it again) and install the recover : fastboot flash recovery_image.img.
any clues... fastboot says wating for device...
i mean when i do the key combination
i still boot get in to the bootloop

fixed it
my phone did the same today, laptop wouldn't recognize phone after bootlooping.. I went to control panel, uninstalled the lg mobile usb drivers, then reinstalled the older drivers rom the internet .. lg up then immediately recognized my phone whilst connected in download mode I hit upgrade and flashed the kdz file.. and I now have a factory reset fully functional g4 hope this helps.

Need some advice....

I tried to root my phone and followed all steps until it asked to boot into the custom recovery and that only displayed a blackscreen and if I tap on the screen the phone vibrated. I cannot boot into bootloader as the phone just automatically tries to enter recovery with blackscreen.
Hold all buttons the phone boots normally and can use the phone as usual.
I've tried to use the adb and fastboot cmds to restore and factory reset but just reboots and tries to enter recovery with the blackscreen.
My device is htc_a51ul if that helps.
Thanks,
Phatzy

Tighten two volume buttons and the power button when you see a black screen and holding down the volume- and power button that would go to zagruzchik.Telefon must be connected to kompyuteru.Esli got to go to the boot loader, boot into download sistemu.Esli not work then you have forgiven stock rekaveri of loader. https://yadi.sk/d/nWnRAChBnEtxG

I think you have flashed a wrong recovery ,first thing to do now is flash stock recovery and whether if it is working fine if so then flash the proper version of twrp 2.8.7.0 is recommended and see if it works
I had the same issue when I first flashed twrp on lollipop but then I did the above and now everything is fine.

while its on the blackscreen only adb commands work. If i try fastboot commands its just waiting for device and phone dont respond. I cannot get into bootloader at all with volume keys or with adb command.
Many thanks for suggestions.

Ok I have now managed to get bootloader back and I can now enter the stock recovery but when I enter recovery it has a red triangle. Is there anyway to remove this?
Thanks.

Question RMX3241 - bootlop after rebooting from recovery, no access to ADB

Hi,
I am looking how to fix my friend's Realme 8 5G (RMX3241) phone.
Here is the story:
1) My friend downgraded his firmware but by an accident installed ROM for India region, the result was he had no GSM signal on the phone (he lives in EU).
2) He also unlocked bootloader, but probably not correctly, because it shows orange state and I can't go into recovery with combination vol up + power
3) The phone booted, but no GSM.
What I did:
1) Managed to boot into recovery using "adb reboot recovery".
2) Then I pressed 'reboot' in recovery (I wanted to load a proper region ROM) and since then I am watching "realme" logo for like 10 minutes straight, so I assume it went into bootloop.
What I can do now:
1) After pressing vol down + power it shows:
oplus Verify fail
need to verify signature of another brand
oplus Verify pass
fastboot verify success
fastboot_unlock_verify ok
However in this state I can't reach this phone using adb
2) Pressing vol up + power doesn't boot into recovery, just normally boots the system but it goes into bootloop.
3) The orange state is still there.
So assume I am now left with bootlooped system with no access to ADB.
Can anyone help me with this? Are there any solutions to this?

Tried SP Flash tool but after loading scatter file it shows:
Platform MT68 not support on this version.
Please update to latest flashtool and try again.

Well, I have a solution for that.
It seems that the system is bricked, so you need to download a proper firmware version for your phone, and flash the stock ROM via fastboot (platform-tools) by erasing super and vbmeta partitions, and flashing every single IMG file of the firmware stock ROM.

2) He also unlocked bootloader, but probably not correctly, because it shows orange state and I can't go into recovery with combination vol up + power
Click to expand...
Click to collapse
Orange state is normal also as far as i know there is not a button combination to boot into recovery on this phone
1) After pressing vol down + power it shows:
oplus Verify fail
need to verify signature of another brand
oplus Verify pass
fastboot verify success
fastboot_unlock_verify ok
However in this state I can't reach this phone using adb
Click to expand...
Click to collapse
This is fastboot mode and you have to use fastboot which is bundled with adb, in this state you can: unlock bootloader, flash partitions or you can reboot to recovery

Taracair said:
Tried SP Flash tool but after loading scatter file it shows:
Platform MT68 not support on this version.
Please update to latest flashtool and try again.
Click to expand...
Click to collapse
SP_Flash_Tool_v5.2124 works for me
You have to:
Have proper VCOM MTK drivers installed
Boot the phone by pressing vol up + vol down while connected to pc via usb
Use MTKAuthBypass v7 before flashing in order to bypass auth protection system.
UPDATE:
mtkclient it's perfect and on the github everything is explained on how to use it