Database Users

[Q] Help! LG Optimus GT540 not turning on

Hello, i have mobile LG gt540 and when i try turn on there write Linux Kernel Panic Process swapper (pid : 1 ), what is it? How can i involved it?

jiomax said:
Hello, i have mobile LG gt540 and when i try turn on there write Linux Kernel Panic Process swapper (pid : 1 ), what is it? How can i involved it?
Click to expand...
Click to collapse
which ROM ? any overclocking ?

no, system is default, android 2.1, i can not update rom with kdz updater, there stopped in line 215 and same error apeared on the screen. what can i do?

jiomax said:
no, system is default, android 2.1, i can not update rom with kdz updater, there stopped in line 215 and same error apeared on the screen. what can i do?
Click to expand...
Click to collapse
did you checked if fastboot is working ? (home + camera) or you can get to download mode? if not try this:
http://forum.xda-developers.com/showpost.php?p=25547065&postcount=5
edit : ofc power + camera for fastboot

yes, there is working download mode, but i can not update rom, when there is 215 line its even shuting down, have you good rom and kdz updater?

jiomax said:
yes, there is working download mode, but i can not update rom, when there is 215 line its even shuting down, have you good rom and kdz updater?
Click to expand...
Click to collapse
installed all drivers? x64 system?

yes, do you know what is the problem on line 215?

jiomax said:
yes, do you know what is the problem on line 215?
Click to expand...
Click to collapse
not exactly but i'm pretty sure it's drivers fault (LG modem or so)
go and delete the drivers from your PC, reboot and install official LG drivers with the LG mobile updater for gt540

its not working too, any ideas?

KP on stock rom ?? O_O

bs828 said:
KP on stock rom ?? O_O
Click to expand...
Click to collapse
can not understand, what is kp?

kernel panic

bs828 said:
kernel panic
Click to expand...
Click to collapse
aaa i am sorry, yeas there is kernel panic process swapper (pid : 1)
and blue error handler arm11 is crashed! its written.

i can only use download mode and fastboot, i tried flash roms with fastboot but when phone restart there nothing even LG logo... and with kdz updater there stop in line 215.

first try to install a recovery via fastboot:
fastboot flash recovery recovery.img
If this was ok and you reboot into recovery (home + power) install a new ROM , wipe data/factory reset and wipe dalvik cache .
alsowhats your partiton size - did u changed it ?

andreas__ said:
first try to install a recovery via fastboot:
fastboot flash recovery recovery.img
If this was ok and you reboot into recovery (home + power) install a new ROM , wipe data/factory reset and wipe dalvik cache .
alsowhats your partiton size - did u changed it ?
Click to expand...
Click to collapse
no i did not change, and when i flashed recovery then did not run in recovery mode, only lg logo , what can i do? :?

hmmm recovery not running even after flashing it? im guessing that you are pressing the buttons wrongly. my method is first power down the phone next press the power button till you feel the beep next let go of the power button and hold on to only the home button for as hard as you can... should work...

i think you don't have set-up fastboot correctly ..
type fastboot devices and tell me whats showing up in your cmd

recovery mode is not working, and this is my cmd picture
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
when i do this(what is in the picture) after reboot there is only lg logo on phone screen.
any ideas?

hmmmmmm wth? something is corrupted?

Device is not detected when trying to flash TWRP

okay hello people.
here is my situation.
i was about to revert back to kitkat from ED300 CM12.1, and i suddenly wipe off and formatted my internal storage.
and now ofcourse i cant boot in and what i did was trying to reinstall TWRP through fastboot and minimal adb from PC.
*i tried to flash Lenovo_A6000_TWRP-3.0.2-0_x64-L_by_SevenMaxs
*i cant go into download mode (vol+,vol-,power) button.
so i went to fastboot mode (vol-,power) button until the 'powerkey long press can reboot phone' appear , and i plug in my phone to pc and when i type in command for -adb devices, no device appear.
figure out it was okay, i go ahead and proceed with - fastboot boot recovery.img command.
then it shows
FAILED (remote: dtb not found)
and im stuck there. idk what else to do, which guide to follow to bring my phone back to life.
i have did hours of searching but nothing works. really need a magic here.
thanks guys for ur time

rizarulaltiz said:
okay hello people.
here is my situation.
i was about to revert back to kitkat from ED300 CM12.1, and i suddenly wipe off and formatted my internal storage.
and now ofcourse i cant boot in and what i did was trying to reinstall TWRP through fastboot and minimal adb from PC.
*i tried to flash Lenovo_A6000_TWRP-3.0.2-0_x64-L_by_SevenMaxs
*i cant go into download mode (vol+,vol-,power) button.
so i went to fastboot mode (vol-,power) button until the 'powerkey long press can reboot phone' appear , and i plug in my phone to pc and when i type in command for -adb devices, no device appear.
figure out it was okay, i go ahead and proceed with - fastboot boot recovery.img command.
then it shows
FAILED (remote: dtb not found)
and im stuck there. idk what else to do, which guide to follow to bring my phone back to life.
i have did hours of searching but nothing works. really need a magic here.
thanks guys for ur time
Click to expand...
Click to collapse
BTW if "fastboot devices" not showing any devices then try to properly install fastboot on computer."fastboot boot twrp.img" is command for boot the twrp without flashing.
try "fastboot flash recovery twrp.img" .
p.s:-Try to flash different recovery file.It may be corrupted.

i-AM-BoReD said:
BTW if "fastboot devices" not showing any devices then try to properly install fastboot on computer."fastboot boot twrp.img" is command for boot the twrp without flashing.
try "fastboot flash recovery twrp.img" .
p.s:-Try to flash different recovery file.It may be corrupted.
Click to expand...
Click to collapse
did it as your advice,
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
then i reboot the phone, still cant manage to go into recovey. it stuck there at lenovo logo.
tried with different recovery image, still the same

rizarulaltiz said:
did it as your advice,
then i reboot the phone, still cant manage to go into recovey. it stuck there at lenovo logo.
tried with different recovery image, still the same
Click to expand...
Click to collapse
As i can see that it is saying device not found but flshing is succeeded.
Editlz try to install fastboot properly.Look here

i-AM-BoReD said:
As i can see that flashing is successful.For entering to recovery r u using button combo or command?
Click to expand...
Click to collapse
i use button combo.
vol+, vol-, power button

rizarulaltiz said:
i use button combo.
vol+, vol-, power button
Click to expand...
Click to collapse
Here is the possibilities:-
1)May be fastboot is not properly installed .I gave a link in the previous post for that. "device not found" that shouldn't be appear.
2)Try vol+ +power button
3)Try if stock recovery can be flashed by fastboot.Link.if can be then let me know.
4)If not then run this command in adb
Code:
adb shell
ls -al /dev/block/platform/dw_mmc/by-name
and give a screen shot.

Did you flash kitkat ROM after this or before this fuss?
If Yes, then you need to flash TWRP for kitkat firmware.

https://drive.google.com/file/d/0B8_p5nNeW71VRFZnc3cwb2hLR28/view?usp=sharing
download the above recovery and download flashify from playstore . Flash the recovery that you downloaded from above link with flashify and reboot and in the next step you will be in the recovery

Try this
http://forum.xda-developers.com/len...lenovo-a6000-plus-stuck-booting-logo-t3437378
LP/MM TWRP 2.8.7.7 https://drive.google.com/file/d/0B3yAzE4FH2e7RkNQbUk2b0g1T0E/view?usp=drivesdk
KK TWRP 2.8.6.1 https://drive.google.com/file/d/0B3yAzE4FH2e7RU5helVWd0dBUGM/view?usp=drivesdk

i-AM-BoReD said:
Here is the possibilities:-
1)May be fastboot is not properly installed .I gave a link in the previous post for that. "device not found" that shouldn't be appear.
2)Try vol+ +power button
3)Try if stock recovery can be flashed by fastboot.Link.if can be then let me know.
4)If not then run this command in adb
Code:
adb shell
ls -al /dev/block/platform/dw_mmc/by-name
and give a screen shot.
Click to expand...
Click to collapse
1.fastboot is properly installed
2.still nothing
3. tried this and it worked. i can boot into recovery now.
now i should flash the stock rom right?

rizarulaltiz said:
1.fastboot is properly installed
2.still nothing
3. tried this and it worked. i can boot into recovery now.
now i should flash the stock rom right?
Click to expand...
Click to collapse
Then ur device is good to go.I found a recovery flashble stock rom in help or guide thread few days ago.Search it.
Also if there is recovey flashable T.W.R.P available somewhere u can flash it also.
Edit:-Here is a zip file of T.W.R.P.But version is 3.0.0.1.Don know if it can be flaahed by Stock recovery or not.Give it a try.If succeeded then no need to flash whole stock rom.You know that already.

i-AM-BoReD said:
Then ur device is good to go.I found a recovery flashble stock rom in help or guide thread few days ago.Search it.
Also if there is recovey flashable T.W.R.P available somewhere u can flash it also.
Edit:-Here is a zip file of T.W.R.P.But version is 3.0.0.1.Don know if it can be flaahed by Stock recovery or not.Give it a try.If succeeded then no need to flash whole stock rom.You know that already.
Click to expand...
Click to collapse
after i manage to flash stock recovery, i flash TWRP-2.8.6.1_A6000. then i boot into TWRP and format my internal storage, then continue flashing back ED 300's CM12.1.
and my device is back onlinee! Thanks brother for the help!!!

rizarulaltiz said:
1.fastboot is properly installed
2.still nothing
3. tried this and it worked. i can boot into recovery now.
now i should flash the stock rom right?
Click to expand...
Click to collapse
I am facing the same problem of adb device not listed , please share how it worked for you

Axon 7 not able to install TWRP or lock bootloader

Hello all,
I need help with my Axon 7 (A2017G)
I upgraded my phone to Oreo 8.1 (AospExtended), played with it a bit, but decided to downgrade to 7.1.1 (stock) again.
After I did so, I noticed something different. Firstly when it boots up, this screen appears
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
It goes away after 5 seconds and boots or if I click the vol up or down button, it takes me to this screen
If I choose anything other than Recovery, the phone just boots up
If I choose Recovery, it takes me here
I cannot boot into recovery mode at all. I can't find out how to install TWRP recovery on here at all.
Also If i boot using power+vol down, this appears
Please advise how to install TWRP and lock the bootloader

Have you tried the Axon 7 tool by Djkuz?
It should be able to get you out of this, I'll find the link for you.

Khepralife said:
Hello all,
I need help with my Axon 7 (A2017G)
I upgraded my phone to Oreo 8.1 (AospExtended), played with it a bit, but decided to downgrade to 7.1.1 (stock) again.
After I did so, I noticed something different. Firstly when it boots up, this screen appears It goes away after 5 seconds and boots or if I click the vol up or down button, it takes me to this screen
If I choose anything other than Recovery, the phone just boots up
If I choose Recovery, it takes me here
I cannot boot into recovery mode at all. I can't find out how to install TWRP recovery on here at all.
Also If i boot using power+vol down, this appears
Please advise how to install TWRP and lock the bootloader
Click to expand...
Click to collapse
that is, like, 100% normal. you have stock recovery and that FTM mode just gives you adb. If you can't enter fastboot then you would have to install it via EDL.
But before doing that, why the heck would you want to lock the bootloader? Lol you can just hide the 5 sec screen and sell it (or return to zte, they never check), there's no difference at all
If you're gonna lock anyways, you have to install TWRP via EDL (use EDL Tool by djkuz) then install the "remove inscription" by raystef66 or follow the steps on his guide. Then you will get fastboot. After you do that, just reboot the phone. TWRP should be replaced with stock recovery again. Check if it was (power + vol+) and if you enter stock recovery then go to Fastboot (via "adb reboot bootloader") and do the command to lock
Of course you have to be FULLY stock (no magisk or whatever) or you'll brick your device

Axon 7 tool
https://forum.xda-developers.com/axon-7/development/axon-7-edl-tool-flash-backup-restore-t3750759
There is an Axon 7 tool kit as well via another post here.
https://forum.xda-developers.com/axon-7/development/tool-axon7toolkit-t3573108

Syberclone said:
Have you tried the Axon 7 tool by Djkuz?
It should be able to get you out of this, I'll find the link for you.
Click to expand...
Click to collapse
Thank you

Choose an username... said:
that is, like, 100% normal. you have stock recovery and that FTM mode just gives you adb. If you can't enter fastboot then you would have to install it via EDL.
But before doing that, why the heck would you want to lock the bootloader? Lol you can just hide the 5 sec screen and sell it (or return to zte, they never check), there's no difference at all
If you're gonna lock anyways, you have to install TWRP via EDL (use EDL Tool by djkuz) then install the "remove inscription" by raystef66 or follow the steps on his guide. Then you will get fastboot. After you do that, just reboot the phone. TWRP should be replaced with stock recovery again. Check if it was (power + vol+) and if you enter stock recovery then go to Fastboot (via "adb reboot bootloader") and do the command to lock
Of course you have to be FULLY stock (no magisk or whatever) or you'll brick your device
Click to expand...
Click to collapse
Thank you

[Solved] H990DS only able to boot into fastboot and static screen

Hi,
I was trying to install Super Rom but unfortunately I am unable to boot the phone. I had rooted the phone a while back. When I try to turn the phone on I get stuck with the dreaded static screen which is normally an easy fix however I can't boot into TWRP as that gives my a static screen too. The only thing I have access to is the fastboot menu and when I try "fastboot reboot" I get stuck at the LG "lifes good" screen. I have tried to flash two different versions of TWRP (one given in dirty santa and the most up to date for H990DS).
Any ideas will be greatly appreciated!
SOLUTION: https://forum.xda-developers.com/showpost.php?p=77843686&postcount=7

Don't use fastboot reboot. That starts it booting the stock rom, which before the first boot into twrp reflashes the stock recovery again. You need to pull the battery to leave fastboot, then boot into recovery by holding volume down, holding power until the screen turns on, then tapping power repeatedly until it asks to factory reset, say yes. When twrp boots swipe to allow writing to system and flash something. Then booting the rom won't eat twrp anymore.

Phoenix591 said:
Don't use fastboot reboot. That starts it booting the stock rom, which before the first boot into twrp reflashes the stock recovery again. You need to pull the battery to leave fastboot, then boot into recovery by holding volume down, holding power until the screen turns on, then tapping power repeatedly until it asks to factory reset, say yes. When twrp boots swipe to allow writing to system and flash something. Then booting the rom won't eat twrp anymore.
Click to expand...
Click to collapse
Thanks for your help, but I have managed to fix my issues! I will add in a fix guide later for anyone else that stumbles upon this.

Phoenix591 said:
Don't use fastboot reboot. That starts it booting the stock rom, which before the first boot into twrp reflashes the stock recovery again. You need to pull the battery to leave fastboot, then boot into recovery by holding volume down, holding power until the screen turns on, then tapping power repeatedly until it asks to factory reset, say yes. When twrp boots swipe to allow writing to system and flash something. Then booting the rom won't eat twrp anymore.
Click to expand...
Click to collapse
So I can now boot into SuperRom but I am unable to go back into TWRP. When I do the usual button procedure to get to TWRP I am asked to do the LG reset thing, I press yes twice and then I am met with this screen:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
To boot into Android I need to open fastboot and reflash the recovery, then reboot but I still don't have any access to the recovery. Any ideas?

Higgings said:
So I can now boot into SuperRom but I am unable to go back into TWRP. When I do the usual button procedure to get to TWRP I am asked to do the LG reset thing, I press yes twice and then I am met with this screen:
To boot into Android I need to open fastboot and reflash the recovery, then reboot but I still don't have any access to the recovery. Any ideas?
Click to expand...
Click to collapse
Flash my twrp instead.

Phoenix591 said:
Flash my twrp instead.
Click to expand...
Click to collapse
I'm fairly certain that's the one I'm using, but ill re-download it and try again.
Just downloaded your version and it was indeed the one I have been using already. I did however download it again and tried to reflash it using the method you stated above but I end up with the same screen. The only way I can get it to boot into Android after that screen is to boot into fastboot, flash your recovery then "fastboot reboot".

Problem solved! Solution:
1. Download the TWRP app from the play store
2. Using the app, flash Phoenix591's TWRP (here)
3. Use ADB and reboot into recovery using "adb reboot recovery"
Once I did these steps I was able to use the usual method (volume down, release power for one second etc) to boot into TWRP. Happy days!

Mi A1 Bootloop after ota update and Locked Bootloader

Hi,
I've installed an ota update and the device didn't boot... it is stuck in a bootloop....
When i try to flash via fastboot, it appears an error saying that the device is locked ant cennot erase...
via fastboot oem unlock i get the error message: Remote: oem unlock is not allowed
via MiUnlocker the unlock gets to de 50% and gives an error and on its logs it says: Remote: oem unlock is not allowed
I tryed to flash TWRP with command fastboot flash recovery but the error is the same: remote: partition flashing is not allowed
Can anyone help me please??
I'm stuck on the bootloop i can't go to setting - developer - allow oem unlock option!!

Have you tried doing a Factory Reset from stock recovery?

This is a strange behavior, even if an OTA update corrupted the system for some reason, the phone should boot from the original slot.
Have you tried switching slots manually from fastboot ?

Parnas72 said:
This is a strange behavior, even if an OTA update corrupted the system for some reason, the phone should boot from the original slot.
Have you tried switching slots manually from fastboot ?
Click to expand...
Click to collapse
How can i do that?

Hello!
I've faced the exact same problem yesterday.
You need to force the phone to boot in EDL mode by opening the back cover and short circuit 2 pins as shown in THIS video.
After you have the phone in EDL and being detected by your PC (you need the correct drivers, you may get them on THIS thread by @CosmicDan), you may use MiFlash Tool to flash official PIE Rom, access developer options and enable oem unlock to be able to unlock your phone again.
If you wish to revert to Oreo, please use THIS guide.
Cheers!

Tepig said:
Have you tried doing a Factory Reset from stock recovery?
Click to expand...
Click to collapse
No recovery.. i get this:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

Typhus_ said:
Hello!
I've faced the exact same problem yesterday.
You need to force the phone to boot in EDL mode by opening the back cover and short circuit 2 pins as shown in THIS video.
After you have the phone in EDL and being detected by your PC (you need the correct drivers, you may get them on THIS thread by @CosmicDan), you may use MiFlash Tool to flash official PIE Rom, access developer options and enable oem unlock to be able to unlock your phone again.
If you wish to revert to Oreo, please use THIS guide.
Cheers!
Click to expand...
Click to collapse
Obrigado!
I'll try it now!!

xistolas said:
No recovery.. i get this:
Click to expand...
Click to collapse
Actually you have a recovery. You need to long press the power button and, afterwards (not at the same time), press the volume + button. You'll see that all options will appear.

xistolas said:
How can i do that?
Click to expand...
Click to collapse
fastboot getvar current-slot
to show the current slot,
fastboot --set_active=a or fastboot --set_active=b
to change it.

xistolas said:
Obrigado!
I'll try it now!!
Click to expand...
Click to collapse
get into fastboot mode
hot boot twrp using fastboot command
copy efs backup to twrp backup folder and restore
then go into bootloader mode
flash the firmware using miflash
---------- Post added at 09:27 PM ---------- Previous post was at 09:23 PM ----------
akashavel said:
get into fastboot mode
hot boot twrp using fastboot command
copy efs backup to twrp backup folder and restore
then go into bootloader mode
flash the firmware using miflash
Click to expand...
Click to collapse
follow from step 6 to end in below link
https://forum.xda-developers.com/mi-a1/how-to/tutorial-downgrade-9-0-to-8-1-edl-imei-t3879624