Develop Bugs

[Q] Cannot enter recovery CWM (doomlord kernel)

So I've unlocked my phone and flashed the newest kernel with cwm recovery from doomlord. like described in here http://forum.xda-developers.com/showthread.php?t=2620794
I'm only able to enter recovery mode during the first boot right after the flashing of the kernel via fastboot. only that time the led will turn pink.
after that, the volume up + power button method does not work for me nor will the led turn pink again during boot.
Via adb it also dosn't work because my device is not recognized. Software methods like "restart in recovery mode" in "rom manager" also do not work.
beside that, i have no write access to the system partition. making root (wich is working) useless for me.
so what am i doing wrong?

5iiiii said:
the volume up + power button method does not work for me
Click to expand...
Click to collapse
You just press Vol+.
[ how to enter recovery ]
when you see the Sony logo and the LED light turns pink/amber/orange keep tapping/pressing VOLUME UP key
Click to expand...
Click to collapse

XperienceD said:
You just press Vol+.
Click to expand...
Click to collapse
you mean during boot? so first power off then power on and then volume up?!
nope, doesn't work

How are you flashing the kernel. Write down the exact command.

zxz0O0 said:
How are you flashing the kernel. Write down the exact command.
Click to expand...
Click to collapse
oh man. thank you for that hint. I checked my command prompt history and I saw that I had forgotten the "flash" command. I just typed "fastboot boot bootimage.img"
that is a little bit embarrassing. thank you very much for that hint. now everything is working as it should.

Fastboot mode

Hello. In order to test a custom recovery for LG K420n I have to enter fastboot mode and then use the "fastboot oem unlock" command to unlock bootloader. The problem is I cannot enter fastboot mode. I tried all the possible commands and button combinations (http://www.hardreset.info/devices/lg/lg-k10-lte/fastboot-mode/). Anyone can help?

ZemoDroid said:
Hello. In order to test a custom recovery for LG K420n I have to enter fastboot mode and then use the "fastboot oem unlock" command to unlock bootloader. The problem is I cannot enter fastboot mode. I tried all the possible commands and button combinations (http://www.hardreset.info/devices/lg/lg-k10-lte/fastboot-mode/). Anyone can help?
Click to expand...
Click to collapse
Can u try the same steps, but: holding the Volume "UP" key for a few seconds

ZemoDroid said:
Hello. In order to test a custom recovery for LG K420n I have to enter fastboot mode and then use the "fastboot oem unlock" command to unlock bootloader. The problem is I cannot enter fastboot mode. I tried all the possible commands and button combinations (http://www.hardreset.info/devices/lg/lg-k10-lte/fastboot-mode/). Anyone can help?
Click to expand...
Click to collapse
the trick is to completely power down your device, then Hold down the volume up button (or down perhaps. i don't remember exactly) and then plug in the usb cable at the same time.. I figured it out when i was trying to root my device a few months ago and completely messed it up before using the lg pc bridge to recover it again

salaigeethan666 said:
the trick is to completely power down your device, then Hold down the volume up button (or down perhaps. i don't remember exactly) and then plug in the usb cable at the same time.. I figured it out when i was trying to root my device a few months ago and completely messed it up before using the lg pc bridge to recover it again
Click to expand...
Click to collapse
This is for download mode not fastboot.
Sent from my LG K10 using XDA Labs

ZemoDroid said:
This is for download mode not fastboot.
Sent from my LG K10 using XDA Labs
Click to expand...
Click to collapse
No. Fastboot does exist.. cos i entered it once.. im just unable to say whether it was vol down or up..

In ADB
adb devices
ENTER
if ok?
abd reboot bootloader
ENTER
you be fastboot mode.. (look display phone)
for unlock
fastboot oem unlock
ENTER
or
fastboot flashing unlock
ENTER
(in phone, press Vol UP)

erick0023 said:
In ADB
adb devices
ENTER
if ok?
abd reboot bootloader
ENTER
you be fastboot mode.. (look display phone)
for unlock
fastboot oem unlock
ENTER
or
fastboot flashing unlock
ENTER
(in phone, press Vol UP)
Click to expand...
Click to collapse
I tried that many times already. I need to unlock bootloader to enter fastboot but I can't enter it because of locked bootloader...loop.

ZemoDroid said:
I tried that many times already. I need to unlock bootloader to enter fastboot but I can't enter it because of locked bootloader...loop.
Click to expand...
Click to collapse
No. Locked bootloader doesn't screw you. It's able to boot into bootloader/fastboot mode even if it's been locked.

-power on device presing (vol- & power) until logo image appear, release and press again power key by the second
-format device screen apper.. chose : format yes , confirm
-just appear android image formating.. press the 3 key alternatively
-then enter to stock recovery ; and u can chose fastboot or sideloader mode
* i dont know the exactly combination key press. but u must try a couple intents..

mosta00 said:
-power on device presing (vol- & power) until logo image appear, release and press again power key by the second
-format device screen apper.. chose : format yes , confirm
-just appear android image formating.. press the 3 key alternatively
-then enter to stock recovery ; and u can chose fastboot or sideloader mode
* i dont know the exactly combination key press. but u must try a couple intents..
Click to expand...
Click to collapse
That doesnt work for newer phones.
---------- Post added at 04:31 PM ---------- Previous post was at 04:30 PM ----------
berkantkz said:
No. Locked bootloader doesn't screw you. It's able to boot into bootloader/fastboot mode even if it's been locked.
Click to expand...
Click to collapse
How?

its worked on my LG k10 430H (mtk divice)

mosta00 said:
its worked on my LG k10 430H (mtk divice)
Click to expand...
Click to collapse
How?

mosta00 said:
-power on device presing (vol- & power) until logo image appear, release and press again power key by the second
-format device screen apper.. chose : format yes , confirm
-just appear android image formating.. press the 3 key alternatively
-then enter to stock recovery ; and u can chose fastboot or sideloader mode
* i dont know the exactly combination key press. but u must try a couple intents..
Click to expand...
Click to collapse
pvineeth97 said:
How?
Click to expand...
Click to collapse
This! works for me, (dont release "vol - key"; just "power key by a second")

this works for me
pvineeth97 said:
How?
Click to expand...
Click to collapse
-power on device presing (vol- & power) until logo image appear, release and press again power key by the second
-format device screen apper.. chose : format yes , confirm
-just appear android image formating.. press vol- & power, and just after that vol+ till u see text about formating
let it finish and then it will show up recovery screen. choose reboot into bootloader, connect it to pc, open cmd and boot into twrp

ilicu33 said:
-power on device presing (vol- & power) until logo image appear, release and press again power key by the second
-format device screen apper.. chose : format yes , confirm
-just appear android image formating.. press vol- & power, and just after that vol+ till u see text about formating
let it finish and then it will show up recovery screen. choose reboot into bootloader, connect it to pc, open cmd and boot into twrp
Click to expand...
Click to collapse
It might be easy in MTK but not in Qualcomm lol. We even tried "adb reboot recovery". It just shows a dead android symbol. But even randomly pressing those buttons doesn't allow us to go into recovery. MTK users have a upper hand lol.

ilicu33 said:
-power on device presing (vol- & power) until logo image appear, release and press again power key by the second
-format device screen apper.. chose : format yes , confirm
-just appear android image formating.. press vol- & power, and just after that vol+ till u see text about formating
let it finish and then it will show up recovery screen. choose reboot into bootloader, connect it to pc, open cmd and boot into twrp
Click to expand...
Click to collapse
Urs MTK?

tick oem unlock
ZemoDroid said:
I tried that many times already. I need to unlock bootloader to enter fastboot but I can't enter it because of locked bootloader...loop.
Click to expand...
Click to collapse
make sure you ticked the OEM unlock and USB debugging at the developer option

ilicu33 said:
-power on device presing (vol- & power) until logo image appear, release and press again power key by the second
-format device screen apper.. chose : format yes , confirm
-just appear android image formating.. press vol- & power, and just after that vol+ till u see text about formating
let it finish and then it will show up recovery screen. choose reboot into bootloader, connect it to pc, open cmd and boot into twrp
Click to expand...
Click to collapse
Hello, could you be more precise please. Everything is clear till you press Confirm over "Factory reset" - after that I got colorful ring with "Erasing" sign for a few seconds and then - long run on LG logo before system boots. When and what should I press, to get into bootloader?

same problem here I have qualicom LGK10 420DS I have followed saveral method to enter into recovery but didn't workout.
can some one help with correct steps.
---------- Post added at 01:43 PM ---------- Previous post was at 01:22 PM ----------
vj4mqntm said:
same problem here I have qualicom LGK10 420DS I have followed saveral method to enter into recovery but didn't workout.
can some one help with correct steps.
Click to expand...
Click to collapse
Hi!
I have a LGK10 420DS (m216) MSM8916 Indian version I am unable to boot into bootloader or recovery by using adb / fastboot or by volume and power kay, as you are aware LG is not supporting any software update. I want to flash CustomROM and trying to unlock bootloader with different method but unable to enter in recovery, plz. some one can help out.

volume - whilst pluging usb into computer = fastboot mode
volume + whilst plugging = download mode
this works in new models, tested in a lg aristo 2

Is it possible to lock the bootloader without using the volume buttons?

the volume buttons on my device don't work, and my android is on 8.0.0, I am wanting to upgrade to 9.0.5, but the device will not let me update with the bootloader unlocked, so I wonder if there is any way to do this without having to use the volume buttons, thanks in advance

andrevianaa said:
the volume buttons on my device don't work, and my android is on 8.0.0, I am wanting to upgrade to 9.0.5, but the device will not let me update with the bootloader unlocked, so I wonder if there is any way to do this without having to use the volume buttons, thanks in advance
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Click to collapse
I'm having the same issue today, try this. I will be performing the same thing today and will update you on how I do.
EDIT: Didn't see that you said your volume doesn't work. Whoops. There might be a way to reboot into ADB recovery. Try putting your device into Developer Mode, turn on Advanced Reboot, and when you hold down the power, press "Reboot" and then "Bootloader". Then just use ADB.

AwlsomeAlex said:
EDIT: Didn't see that you said your volume doesn't work. Whoops. There might be a way to reboot into ADB recovery. Try putting your device into Developer Mode, turn on Advanced Reboot, and when you hold down the power, press "Reboot" and then "Bootloader". Then just use ADB.
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Click to collapse
what is ADB? how to use it?

andrevianaa said:
what is ADB? how to use it?
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Click to collapse
Go and turn on Advanced restart, click bootloader once holding the power button when the device is on then proceed to go to fastboot and type in the command
"fastboot oem lock"
then:
"fastboot erase userdata"
You will lose all your data (I think).

I need to do this to unlock bootloader but power button not working to select option any ideas plz?

mi9 se bricked

hello, after an update to xiaomi.eu rom my phone doesn't start when i push power button it show mi logo for 1 sec then shutsdown when i plug it to my comp same thing. Any ideas?

@gabi4175: can you boot up recovery? Format /data then. Otherwise flash complete firmware.

rp158 said:
@gabi4175: can you boot up recovery? Format /data then. Otherwise flash complete firmware.
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Click to collapse
can you tell me how to flash complete firmware when i connect it to pc nothing happens, mi logo apears for 1 sec then off 1sec

@gabi4175, more preciesly: connect via ADB or Mi-Flashtool? And again: what about Recovery?

rp158 said:
@gabi4175, more preciesly: connect via ADB or Mi-Flashtool? And again: what about Recovery?
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Click to collapse
Again Phone stays ON for 1 SECOND to enter recovery the phone needs to stay ON
NO Recovery
NO fastboot

@gabi4175: sorry that I didn't use my crystal ball...

So, if you press power and volume down it doesn't go to fastboot?

elpaablo said:
So, if you press power and volume down it doesn't go to fastboot?
Click to expand...
Click to collapse
nope seems that the motherboard was damaged by my charger

Question One Plus 9 Pro Unbrick/Bootloop

Hey Guys i have an Big Problem and i dont knwo what to please help
So i wanted to flash lineageos and that worked good but its garbage the camera ist very basic and there are a lot of features which not work
So i decide to get back to Oxygenos und root it
Yeah and know my phone is stuck at something it only shows the one plus logo, sometimes nothing, and somethimes i get into fastboot but that not helping because when i boot or flash boot a recovery nothing happends it shows only the one plus logo!!
So i have an One Plus image but i cant sideload it into fastboot
is there an fastboot image?
i hope so!!
thans for reading i am from germany so my english is not the best

Use the msm tool for unbrick your devices

ChrisFeiveel said:
Use the msm tool for unbrick your devices
Click to expand...
Click to collapse
Hey thanks for anwering i have downloaded it but i really dont know how to use it
but the bigger problem ist that the phone only shows a red flash and a white circle!
so i cant get into fastboot

SeppelLetsPlay said:
Hey thanks for anwering i have downloaded it but i really dont know how to use it
but the bigger problem ist that the phone only shows a red flash and a white circle!
so i cant get into fastboot
Click to expand...
Click to collapse
Search for the link and be sure to read on how to use the tool completely until you understand!
[OP8T][OOS KB05AA/BA/DA] Unbrick tool to restore your device to OxygenOS​

TheGhost1951 said:
Search for the link and be sure to read on how to use the tool completely until you understand!
[OP8T][OOS KB05AA/BA/DA] Unbrick tool to restore your device to OxygenOS​
Click to expand...
Click to collapse
Yeah but i dont get in EDL or Fastboot
its only shows the obeplus logo every 3 seconds and reboot
but power + vol +/- are ignored
only +/- is also not working
please help i am despair

SeppelLetsPlay said:
Yeah but i dont get in EDL or Fastboot
its only shows the obeplus logo every 3 seconds and reboot
but power + vol +/- are ignored
only +/- is also not working
please help i am despair
Click to expand...
Click to collapse
Try power+vol- to get to recovery.... Other than that keep trying different button combinations... What happens when you hold both vol buttons and power button for more than ten seconds? To completely shut phone off hold vol up and power button. Otherwise I have heard some say let the phone battery run down battery until phone shuts off. Then try the buttons again. Only just both vol buttons no power and phone not plugged in. Start the MSM tool it will say waiting on device, then with phone off, hold both vol buttons down wait 10 seconds then connect phone to PC.

So when i press power + "-" nothing happend, no vibration, no screen nothing
when i press +/- and power the phone starts and there stands fastboot but a few seconds läter come the red flash and the phone shuts down(but it is onto an powercord)
when i only press +/- also nothing happend and the phone is not responded in msm

SeppelLetsPlay said:
So when i press power + "-" nothing happend, no vibration, no screen nothing
when i press +/- and power the phone starts and there stands fastboot but a few seconds läter come the red flash and the phone shuts down(but it is onto an powercord)
when i only press +/- also nothing happend and the phone is not responded in msm
Click to expand...
Click to collapse
Do not use +/- and power....do not use the power button just +/- only

TheGhost1951 said:
Do not use +/- and power....do not use the power button just +/- only
Click to expand...
Click to collapse
ok but as i sag wehen i power off the device(with fastboot) the +/- doesent work and its not regnosized
but i have sucsessfully launched twrp with fastboot boot twrp
but when i sideload the zip i get the error that the storage cant be mounted

SeppelLetsPlay said:
ok but as i sag wehen i power off the device(with fastboot) the +/- doesent work and its not regnosized
but i have sucsessfully launched twrp with fastboot boot twrp
but when i sideload the zip i get the error that the storage cant be mounted
Click to expand...
Click to collapse
You don't side load it, make sure the magisk app is located in phone storage, boot to twrp then select install while in twrp......

Ok and for what i need magisk first i must get oxygenos to run
and how can ich get magisk.apk onto the device? on my pc i cant see the phone/storage

SeppelLetsPlay said:
Ok and for what i need magisk first i must get oxygenos to run
and how can ich get magisk.apk onto the device?
Click to expand...
Click to collapse
Sorry that response was for another person!

TheGhost1951 said:
Sorry that response was for another person!
Click to expand...
Click to collapse
oh ok sorry

TheGhost1951 said:
You don't side load it, make sure the magisk app is located in phone storage, boot to twrp then select install while in twrp......
Click to expand...
Click to collapse
Ok, you were able to get to fastboot, now we are getting somewhere....hold on. We will get you up and running....!

You will need phone in fastboot mode connected to PC..,..do you have the ROM you want to flash?

TheGhost1951 said:
You will need phone in fastboot mode connected to PC..,..do you have the ROM you want to flash?
Click to expand...
Click to collapse
yeah i have the stock rom
c.47 europe full ota
OnePlus 9 and 9 Pro Firmware Flash File (Stock ROM)
If you're using a OnePlus 9 and 9 Pro or planning to buy it, then this guide is for you. If you want to install Stock Firmware, here we will share the
www.getdroidtips.com

SeppelLetsPlay said:
yeah i have the stock rom
c.47 europe full ota
OnePlus 9 and 9 Pro Firmware Flash File (Stock ROM)
If you're using a OnePlus 9 and 9 Pro or planning to buy it, then this guide is for you. If you want to install Stock Firmware, here we will share the
www.getdroidtips.com
Click to expand...
Click to collapse
Extract the zip, should see a payload.bin and change it to payload.img. then fastboot flash payload.img that will flash it to the phone... Then fastboot boot, that should reboot into setup screen on phone. If it doesn't, the last step would be to change the active slot and reboot again in fastboot mode...

Finally, from fastboot mode, fastboot twrp img and in twrp tap on reboot and boot to EDL mode with MSM tool "started" and that will start the process... If the above procedure fails! This is the way I recover from a crashed phone!

unknown partition 'payload.img'
error: cannot determine image filename for 'payload.img'
Does not work

SeppelLetsPlay said:
unknown partition 'payload.img'
error: cannot determine image filename for 'payload.img'
Does not work
Click to expand...
Click to collapse
Read my last post above...to use the MSM tool