Database Develop

[Q] Cannot Access Fastboot

Hello everyone...this is my first thread on xda. I'm trying to flash a new kdz for my phone since I think I broke the wifi and cellular radio firmware through all of my haphazard flashing. The only problem is I cannot get my phone to enter fastboot using the adb command or the key combo (volume-up + usb cable in). I want to try and flash back my laf.img ....but without fastboot I'm honestly pretty lost. Any thoughts?

waxiestmike said:
Hello everyone...this is my first thread on xda. I'm trying to flash a new kdz for my phone since I think I broke the wifi and cellular radio firmware through all of my haphazard flashing. The only problem is I cannot get my phone to enter fastboot using the adb command or the key combo (volume-up + usb cable in). I want to try and flash back my laf.img ....but without fastboot I'm honestly pretty lost. Any thoughts?
Click to expand...
Click to collapse
http://forum.xda-developers.com/lg-l90/general/guide-fastboot-l90-d415-t2827825

jkjambo said:
http://forum.xda-developers.com/lg-l90/general/guide-fastboot-l90-d415-t2827825
Click to expand...
Click to collapse
Thanks, but I have read over this thread pretty thoroughly. I couldn't find any resolution to my problem in it...unless I missed something. This thread tells you how to enable fastboot, and revert to lg download mode using fastboot. I used this thread back when I originally enabled fastboot and zeroed out my laf. However, I can't access fastboot at all to even revert my laf partition now. I even tried shinobisoft's l90.sh script to see if that would reinstall fastboot or get it working again....and it didn't in my case.
I guess another question would be...can I revert my laf.img using some method other than fastboot (since I can't access it).

Solved???
Well I was able to get into lg download mode somehow. I left the phone on over night and let the battery drain to zero. Then I tried the key combo to get it into download mode and it went right in.....which is really weird because it should have gone into fastboot since I zeroed out my laf a while ago. But whatever, I was able to flash a new kdz and get my wifi and cellular antennas working again so I'm not complaining.

Mi A2 ?? Need help

My mi a2 last updated to 19/04/05 pie version, then i install the Google camera using below steps..
1. Turn on debugging mode/oem & turn off the phone
2. Then power button+vol dwn Fastboot mode & connect to pc (Pc already have the adb)
3. In pc>adb>folder>Cmd> type "fastboot oem unlock"
4. Then factory reset the phone and reboot again to fastboot mode
5. Then boot the patched image for phone
6. Then install the magisk and gcam work perfectly.
Simply i used these methods
the***********.com/enable-camera2-api-xiaomi-mi-a2-lite-guide/
But then I tried to relock the bootloader, using below commands on cmd
1. "adb reboot-bootloader"
2."fastboot oem lock"
I tried these 2 commands 4 or 5 times
But phone is not power on with locked bootloader. Then I unlock again oem and try again,, But not working,
Then i unlock bootloader again and try these commands to lock it again,
1. "adb reboot-bootloader"
2."fastboot flashing lock"
3. "fastboot oem lock"
Unfortunately it is not work, also i can't give command "fastboot oem unlock", also i can't turn on my phone, Please help me... I want to restore my phone to working mode... Please help me, Quick, urgent :crying::crying::crying::crying:

No one is replying, I asked two questions about root and custom rom but these d!cks are so enormous that they don't want to help anyone else:

shailendra1993 said:
No one is replying, I asked two questions about root and custom rom but these d!cks are so enormous that they don't want to help anyone else:
Click to expand...
Click to collapse
Bro, you have to flash non patched boot.img before relocking bootloader.
After you did all of above for enabling gcam, you have to flash stock/ non patched boot img.
Btw, if you relock bootloader gcam wont work any more.
And you have to be patiente for solution.

shailendra1993 said:
No one is replying, I asked two questions about root and custom rom but these d!cks are so enormous that they don't want to help anyone else:
Click to expand...
Click to collapse
Yeah, i need a solution for it, but no one answering, My phone load fastboot mode only,:crying::crying:

Androidman12345 said:
Yeah, i need a solution for it, but no one answering, My phone load fastboot mode only,:crying::crying:
Click to expand...
Click to collapse
Flash a full fastboot image. Relock the bootloader and enjoy android one.
The lack of camera2 api is better than a paper weight?

Mi A2 Bricked and I have no clue about how to resurect it.

Hello,
Recently, while updating PixelExperience ROM, I got my device bricked and while trying to resurrect the device through good ol' 'MiFlash' method rendered my screen like this 'press any key to shutdown' and strangest thing of all, when I power on my device, it doesn't show the unlocked logo anymore but when I run the code 'fastboot oem unlock', it shows that it's already unlocked. It would be greatly appreciated that if I get any solution.

skd_kaizer said:
Hello,
Recently, while updating PixelExperience ROM, I got my device bricked and while trying to resurrect the device through good ol' 'MiFlash' method rendered my screen like this 'press any key to shutdown' and strangest thing of all, when I power on my device, it doesn't show the unlocked logo anymore but when I run the code 'fastboot oem unlock', it shows that it's already unlocked. It would be greatly appreciated that if I get any solution.
Click to expand...
Click to collapse
You can try flashing the phone through EDL, that always does the trick for me. Just follow the guide to convert the phone but instead of converting just use the same ROM. (Jasmine system img for Jasmine and Wayne system img for Wayne.)

TehSyvar said:
You can try flashing the phone through EDL, that always does the trick for me. Just follow the guide to convert the phone but instead of converting just use the same ROM. (Jasmine system img for Jasmine and Wayne system img for Wayne.)
Click to expand...
Click to collapse
And to do that, I have to open up my phone, right?

Use a USB 2.0 port and latest platform-tools

skd_kaizer said:
And to do that, I have to open up my phone, right?
Click to expand...
Click to collapse
You have to boot to bootloader in order to boot to EDL. You don't need any special cables like other xiaomi devices.
Typing "fastboot OEM EDL" in cmd should do it. The main reason I mentioned the guides is because of the QFIL program and modded fastboot commands that are in the convert.zip . You need that modded fastboot command to boot to EDL.

edl mode 9008 v40 very easy

(french) hello
I could not start in edl mode with the xda instructions but I found a videos
phone on android, connected to the computer by usb. you keep pressing the power button and the volume down button.
when the screen goes black immediately you strafe the volume + button for 2 sec.
the secret is the windows song if the phone is on. when you hear windows song strafe the volume +. i know I did it with my phone off and my phone on quite a few times
normally your computer will recognize the phone in the correct mode. if there is a problem do not forget to install these drivers and restart the computer as it will stay in edl mode and will be well supported.
QDLoader HS-USB Driver_64bit_Setup
MediaFire is a simple to use free service that lets you put all your photos, documents, music, and video in a single place so you can access them anywhere and share them everywhere.
www.mediafire.com
that's funny visibbly before you unlock or reflash the original bootloader the phone don't have fastboot mode with me. but fastboot don't work well in windows. it work erfectly on linux ubuntu with me at exemple.
thanks for your attention

yeah, it is very easy

So this is how you go into fastboot ?
I have the V405 EBW & I am unable to go to fastboot to get the device ID.

Doush_504 said:
So this is how you go into fastboot ?
I have the V405 EBW & I am unable to go to fastboot to get the device ID.
Click to expand...
Click to collapse
no no we should not confuse.
there is download mode in originale lg phone for flash stock roms
there is "edl mode" for unlock bootloader
there is fastboot mode when you unlock the bootloader with this screen.
a tips. root first your phone. 2 backup your firmware. 3 flash twrp. i had problem because i don't do this. there is stock firmware already rooted. its easily.

bsteph27 said:
no no we should not confuse.
there is download mode in originale lg phone for flash stock roms
there is "edl mode" for unlock bootloader
there is fastboot mode when you unlock the bootloader with this screen.
a tips. root first your phone. 2 backup your firmware. 3 flash twrp. i had problem because i don't do this. there is stock firmware already rooted. its easily.
Click to expand...
Click to collapse
Unfortunately, I am unable to root because I am unable to unlock the bootloader (because I can't go to fastboot to get Device ID & send it to LG)

Doush_504 said:
Unfortunately, I am unable to root because I am unable to unlock the bootloader (because I can't go to fastboot to get Device ID & send it to LG)
Click to expand...
Click to collapse
But you can get to fastboot, just not the way you read on the internet.
The device doesn't have fastboot available, until, you put it in edl mode and use qfil to flash the 'engineering' abl. That's what gives you fastboot.
You could, at that point, use fastboot to get the info for unlock.bin. But why? because at that point you can just type 'fastboot oem unlock', and it's unlocked.

AsItLies said:
But you can get to fastboot, just not the way you read on the internet.
The device doesn't have fastboot available, until, you put it in edl mode and use qfil to flash the 'engineering' abl. That's what gives you fastboot.
You could, at that point, use fastboot to get the info for unlock.bin. But why? because at that point you can just type 'fastboot oem unlock', and it's unlocked.
Click to expand...
Click to collapse
beware to put your phone in android oreo before the unlock...... i forget this detail. and i try to unbrick my phone with testpoint. maybe i do a howto if i succes to fix my phone.

AsItLies said:
But you can get to fastboot, just not the way you read on the internet.
The device doesn't have fastboot available, until, you put it in edl mode and use qfil to flash the 'engineering' abl. That's what gives you fastboot.
You could, at that point, use fastboot to get the info for unlock.bin. But why? because at that point you can just type 'fastboot oem unlock', and it's unlocked.
Click to expand...
Click to collapse
Oh OK
I'll have to read more about that.
Thank you

bsteph27 said:
beware to put your phone in android oreo before the unlock...... i forget this detail. and i try to unbrick my phone with testpoint. maybe i do a howto if i succes to fix my phone.
Click to expand...
Click to collapse
Unlock only works with Oreo ??
I have Pie
How do I downgrade without root ?
Is it possible ?

If I can flash a firmware without root
I'd be more than happy to flash a custom rom which has LG's apps instead of Google annoying ones.

Doush_504 said:
Unlock only works with Oreo ??
I have Pie
How do I downgrade without root ?
Is it possible ?
Click to expand...
Click to collapse
you are like me your phone is "bricked". your phone don't have download mode, fastboot mode. maybe you have
edl mode 9008. but often you have to open your phone for put it in edl mode.​wait my howto i hope fix mine today or tomorow and i wil do an howto to unbrick lg v40. is not very hard to solve it but it must a howto.

Bricked after attempting to unlock bootloader. What now?

I was attempting to unlock the bootloader on my V40 at&t(405ua) using the guide by Xsavi. I booted into EDL mode and used Qfil to flash the V35 bootloader to abl_a and it was successful but when i tried to enter fastboot mode it would just restart to the normal boot. I read in one of the comments that this could be fixed by flashing the V35 file to abl_b also, so i tried that. I flashed the file to both abl's but when i tried to boot i got a screen saying "Your device has failed a security check." and at the bottom says "All slots are unbootable!"
What can i do to fix this?

protatocrisp said:
I was attempting to unlock the bootloader on my V40 at&t(405ua) using the guide by Xsavi. I booted into EDL mode and used Qfil to flash the V35 bootloader to abl_a and it was successful but when i tried to enter fastboot mode it would just restart to the normal boot. I read in one of the comments that this could be fixed by flashing the V35 file to abl_b also, so i tried that. I flashed the file to both abl's but when i tried to boot i got a screen saying "Your device has failed a security check." and at the bottom says "All slots are unbootable!"
What can i do to fix this?
Click to expand...
Click to collapse
Well if it's "bricked", then you can't fix it. Bricked means it's a brick, and doesn't respond.
But since it's actually NOT bricked, then maybe flash the original abl's back? Using qfil. That's the thing about edl mode, you can get to it from any screen, it doesn't have to be booted. The only thing you won't get is a timer count down from 5, so you'll have to kind of time that yourself, to start spamming the vol up key.
One other thing, with the engineering abl, the device isn't intended to be able to boot, it's only suppose to be used to unlock the bootloader, then use fastboot to flash the original ones back. The device (almost always) won't boot with those abl's.

AsItLies said:
Well if it's "bricked", then you can't fix it. Bricked means it's a brick, and doesn't respond.
But since it's actually NOT bricked, then maybe flash the original abl's back? Using qfil. That's the thing about edl mode, you can get to it from any screen, it doesn't have to be booted. The only thing you won't get is a timer count down from 5, so you'll have to kind of time that yourself, to start spamming the vol up key.
One other thing, with the engineering abl, the device isn't intended to be able to boot, it's only suppose to be used to unlock the bootloader, then use fastboot to flash the original ones back. The device (almost always) won't boot with those abl's.
Click to expand...
Click to collapse
Thats the thing. I booted into fastboot mode and unlocked the bootloader but when i tried to flash the original abl's it says it cant flash when the bootloader is unlocked and if i reboot it only boots into fastboot mode and when i flash the abl's in Qfil i get the screen saying that the device has failed a routine check. Thats why im unsure of what to do now.

protatocrisp said:
Thats the thing. I booted into fastboot mode and unlocked the bootloader but when i tried to flash the original abl's it says it cant flash when the bootloader is unlocked and if i reboot it only boots into fastboot mode and when i flash the abl's in Qfil i get the screen saying that the device has failed a routine check. Thats why im unsure of what to do now.
Click to expand...
Click to collapse
sounds like you've got some files mismatched / mislabeled. The engineering abl won't give you the message 'can't flash when the bootloader is unlocked'. But the fastboot you get when deleting the laf partition will give you that message.
and if you're using qfil and flashing the original abl's back, and that's all you've changed, and you get the message 'fail routine...', then you're doing something wrong. Either yer flashing to the wrong partitions, flashing the wrong files, or you've changed something else also.

AsItLies said:
sounds like you've got some files mismatched / mislabeled. The engineering abl won't give you the message 'can't flash when the bootloader is unlocked'. But the fastboot you get when deleting the laf partition will give you that message.
and if you're using qfil and flashing the original abl's back, and that's all you've changed, and you get the message 'fail routine...', then you're doing something wrong. Either yer flashing to the wrong partitions, flashing the wrong files, or you've changed something else also.
Click to expand...
Click to collapse
Well im not exactly sure where i went wrong, but i can still enter download mode so would i be able to flash the stock android 9 rom?
Also if i reflash the v35 file and try the fastboot flash abl_a and abl_b it flashes successfully but when it press the power button on the phone it restarts to fastboot mode.

protatocrisp said:
Well im not exactly sure where i went wrong, but i can still enter download mode so would i be able to flash the stock android 9 rom?
Also if i reflash the v35 file and try the fastboot flash abl_a and abl_b it flashes successfully but when it press the power button on the phone it restarts to fastboot mode.
Click to expand...
Click to collapse
well if there's a lesson here it's that it's exceptionally important to pay attention to exactly what you're doing. Double check everything; that you're flashing the correct files, that you back up the correct files and name them appropriately, read directions over and over to be sure u understand.
it sounds like if you keep going back to fastboot when trying to start system, then you're probably re-flashing the engineering abl and not the original abl, which yer suppose to save off first.
yeah, maybe start over again by flashing a stock rom.