Database Develop

[GUIDE] Unlock Bootloader and Flash Custom Recovery L90 D410, D405n, D405 [CWM][TWR]

THIS GUIDE IS ONLY FOR L90 D410, D405, D405n​
First of all, This is not my original work. I am just sharing this GUIDE for easy Bootloader Unlocking and flashing Custom Recovery to L90.
I have tested this method myself and it is working perfectly for me, but it is also possible that it might not work for you for some reasons, so don't panic, just post your problem or whatever error you are facing (please attach screenshot if possible). I or other thread members will try to troubleshoot it. After resolving the problem I'll update this post, so that other members do not face such problem again.
Click to expand...
Click to collapse
PLEASE, USE THIS TUTORIAL AT YOUR OWN RISK, IF SOMETHING WENT WRONG (because of your stupidity) ME OR XDA WILL NOT RESPONSIBLE FOR YOUR LOSS.
Click to expand...
Click to collapse
Root Access required to Unlocking Bootloader and Flashing Recovery. If you are already rooted then go on, if not then down towelroot apk from https://towelroot.com/ and root your phone and install superuser from play store.
If towelroot is not supported to your device, then follow my EASY ROOTING GUIDE below :-
[GUIDE] [NEW] Root All L90 Varients with Latest updates [EASY]
Click to expand...
Click to collapse
DEVICES FLASHED WITH THIS GUIDE AND TESTED OK: LG L90 (D410)
Follow this guide step by step :-
1. Download and extract L90_D4##_v10x_aboot.zip (# = your device model, x = version of stock firmware) and any custom recovery zip you want to flash from the attachments below this post to external sd card (aboot.bin should be on external sd (/storage/external_SD/aboot.bin) , not in any other folder.
2. Download and install terminal from play store and run it.
3. Now type following commands in terminal :-
su
dd if=/storage/external_SD/aboot.bin of=/dev/block/platform/msm_sdcc.1/by-name/aboot
Click to expand...
Click to collapse
(Grant superuse permission to terminal after typing "SU" command)
4. Exit terminal, download and install Flashify from play store. Run it and grant root access.
5. Tap on Recovery image > chose a file > select recovery.img file
6. Tap on Yup!
That's it you are done
HOW TO BOOT INTO RECOVERY PRESSING VOLUME AND POWER KEY
You can reboot to recovery via flashify app or following key combination: -
Power of your phone press both Volume Down + Power Button same time, As soon as the LG logo appears release both buttons and immediately press and hold same buttons (Volume Down+Power) again. Now Factory data reset screen will appear saying "Erase all user data & restore default settings?". Use volume down key to select "Yes" and press power button to confirm and now you should be in recovery. (Caution: Don't try this while stock recovery installed or it will erase all your data)
In case of brick or want to flash stock firmware, please follow this guide :
[Easy][GUIDE][UNROOT][RELOCK BOOTLOADER]Flash Stock KDZ Offline LG L90 [All Variants]
Here is also another method to unlock bootloder using ADB on PC by @SubliemeSiem
Guide to unlocking the bootloader on the L90 using ADB

I used evoname's autopatcher, does this aboot work for all variants from v10a to v10d? I thought they all had their separate aboots.
.
anyways the aboot patch works, tested on my d410 v10b
is "dd if=/storage/external_SD/aboot.binde" a typo?
I advice that users first enable fastboot and make backup before doing this.

Does this work on D405 v10b?

Only for D410
Sent from my LG-D410 using XDA Premium 4 mobile app

another typo :
"of=/v/block/platform/msm_sdcc.1/by-name/aboot"
the /v/ is supposed to be /dev/ right?

It was typing error crosswire, thanks for correcting me
Sent from my LG-D410 using XDA Premium 4 mobile app

thanks for twrp ty ty ty

Just press that thanks button instead of posting

Please help!!!!
Hi guys,
I've bricked my D415 by flashing the aboot.bin for the D410.
Now my device doesn't turn on, even when I connect the charger. However when I connect the charger cable with the battery out, the phone turnson and shows a signal to put battery back.
Is there any way to solve this issue? Maybe by reflashing the aboot.bin (I backed it up before).........
Help plz...

IPRJ25 said:
Hi guys,
I've bricked my D415 by flashing the aboot.bin for the D410.
Now my device doesn't turn on, even when I connect the charger. However when I connect the charger cable with the battery out, the phone turnson and shows a signal to put battery back.
Is there any way to solve this issue? Maybe by reflashing the aboot.bin (I backed it up before).........
Help plz...
Click to expand...
Click to collapse
http://forum.xda-developers.com/lg-l90/general/guide-flash-stock-kdz-offline-lg-l90-t2803479
follow my this guide

IPRJ25 said:
Hi guys,
I've bricked my D415 by flashing the aboot.bin for the D410.
Now my device doesn't turn on, even when I connect the charger. However when I connect the charger cable with the battery out, the phone turnson and shows a signal to put battery back.
Is there any way to solve this issue? Maybe by reflashing the aboot.bin (I backed it up before).........
Help plz...
Click to expand...
Click to collapse
If ADB still recognizes your device, then yes, flash back your original aboot image. Otherwise, it's KDZ flash. Did you zero out your laf partition to enable fastboot? If so, put device in fastboot mode and flash aboot backup with
Code:
fastboot flash aboot "path/to/aboot.bin"

shinobisoft said:
If ADB still recognizes your device, then yes, flash back your original aboot image. Otherwise, it's KDZ flash. Did you zero out your laf partition to enable fastboot? If so, put device in fastboot mode and flash aboot backup with
Code:
fastboot flash aboot "path/to/aboot.bin"
Click to expand...
Click to collapse
My device is completely dead...
It doesn't turn on.
No fastboot, no download mode, no adb, no life...
But when I connect the usb without the battery, the phone lights up and shows a missing battery icon. Only in that situation. other things do not work, the phone is "The Walking Dead, Last Season"
I think that the aboot is the bootloader of everything... but the question is "why does the phone show the missing battery icon, and then when I put the battery back it doesn't show anything...? No charging, [nothing].

Worked great on my new d410, thanks. I noticed cwm has no backup to ext sdcard. Its this a phone limitation or its from cwm recovery?, so I'll switch to twrp instead. Cus phone memory is too small for my full cwm backup
Sent from my LG-D410 using Tapatalk

Bricked....?
Hello all, I think I bricked my phone (lgl90 D410) I followed instruction from first post , also this is not the first time I do something like this on a phone.
Everything seamed to be fine during the process, but when I tried to boot in recovery the phone wont start at all, the only sign of "life" is when I pull out the battery and plug in the USB cable it shows maybe a warning that the battery is missing, that is all ((((,.
Can some one help me, can I fix this or I should go with warranty ? Thank you in advance !
BR,
Mike

miketgv said:
Hello all, I think I bricked my phone (lgl90 D410) I followed instruction from first post , also this is not the first time I do something like this on a phone.
Everything seamed to be fine during the process, but when I tried to boot in recovery the phone wont start at all, the only sign of "life" is when I pull out the battery and plug in the USB cable it shows maybe a warning that the battery is missing, that is all ((((,.
Can some one help me, can I fix this or I should go with warranty ? Thank you in advance !
BR,
Mike
Click to expand...
Click to collapse
Follow this guide
http://forum.xda-developers.com/showthread.php?t=2803479
[Easy][GUIDE][UNROOT][RELOCK BOOTLOADER]Flash Stock KDZ Offline LG L90 [All Variants]

i have done it a little different way that OP said. on my INDIAN D410
here is what i have done.
1.i have rooted with towelroot and install "supersu,busybox and quick boot "from playstore
2.enabled developer settings in about phone.
3.go to developer settings and enabled usb debugging
4.connect phone to pc in MTP mode
5.open terminal on my ubuntu(you can use windows with adb installed)
6.given following commands
adb devices
Click to expand...
Click to collapse
(accept the rsa key prompt if appears)
adb shell
su
Click to expand...
Click to collapse
(grand super user request)
dd if=/storage/external_SD/aboot.bin of=/dev/block/platform/msm_sdcc.1/by-name/aboot
reboot
Click to expand...
Click to collapse
(after reboot go to adb shell again with su propmt)
dd if=/storage/external_SD/cwm.img of=/dev/block/platform/msm_sdcc.1/by-name/recovery
Click to expand...
Click to collapse
(you can use cwm.img or twrp.img from quarx's cm11 thread)
in quick boot >>>click recovery>>grant super user
and you are in recovery.
i think this is a easy way as no one has to type commands on mobile which is cubbersome and liitle uneasy.
here you can copy paste if you want...

k2wl said:
i have done it a little different way that OP said. on my INDIAN D410
here is what i have done.
1.i have rooted with towelroot and install "supersu,busybox and quick boot "from playstore
2.enabled developer settings in about phone.
3.go to developer settings and enabled usb debugging
4.connect phone to pc in MTP mode
5.open terminal on my ubuntu(you can use windows with adb installed)
6.given following commands
(accept the rsa key prompt if appears)
(grand super user request)
(after reboot go to adb shell again with su propmt)
(you can use cwm.img or twrp.img from quarx's cm11 thread)
in quick boot >>>click recovery>>grant super user
and you are in recovery.
i think this is a easy way as no one has to type commands on mobile which is cubbersome and liitle uneasy.
here you can copy paste if you want...
Click to expand...
Click to collapse
Thanks for suggestion buddy,
I am aware of this method. You are just using a PC for hole process, but what I am thinking is, that not every L90 user can afford a PC (in INDIA) , but can afford Terminal app for free from play store

gdjindal said:
Thanks for suggestion buddy,
I am aware of this method. You are just using a PC for hole process, but what I am thinking is, that not every L90 user can afford a PC (in INDIA) , but can afford Terminal app for free from play store
Click to expand...
Click to collapse
but you can add this as a alternative method in OP .
people can use what ever they want to.....right??

k2wl said:
but you can add this as a alternative method in OP .
people can use what ever they want to.....right??
Click to expand...
Click to collapse
Thanks K2wl,
I'll update my post :good:

Great! Link for this thread added to Frequently Asked Questions - LG Optimus L90

Made a dumb dumb mistake need help PLEASE no download mode

So I recently downloaded a g3 ROM on 24a baseband and flashed the at&t version instead of the Verizon version so as you know now I am sitting with a brick.. Every time I try to put the phone in download mode I get what is pictured in the pic below it says (840) fastboot mode started (890) udc_start.... Now I am assuming I have to do something with fastboot and adb but not sure what really would like to get off my galaxy nexus and back on the phone.. I know there is lots of nice people on XDA that can help so please do expect some beer for the help thanks guys
Sent from my Galaxy Nexus using XDA Free mobile app

Bump
Sent from my Galaxy Nexus using XDA Free mobile app

so you don't have recovery access?

Press both volume down and power untill the phone completely shuts off. Don't let go till its off. Then press volume down and power and as soon as you see the LG logo let go then press power button again taking you to the reset screen. Follow through to factory reset to get you to twrp or whichever recovery you put it on.

androidreviewguy said:
So I recently downloaded a g3 ROM on 24a baseband and flashed the at&t version instead of the Verizon version so as you know now I am sitting with a brick.. Every time I try to put the phone in download mode I get what is pictured in the pic below it says (840) fastboot mode started (890) udc_start.... Now I am assuming I have to do something with fastboot and adb but not sure what really would like to get off my galaxy nexus and back on the phone.. I know there is lots of nice people on XDA that can help so please do expect some beer for the help thanks guys
Sent from my Galaxy Nexus using XDA Free mobile app
Click to expand...
Click to collapse
Have you try to get into TWRP or CWM recovery via hard buttons? 1) From that fastboot screen, press power and vol. down together and hold for 8 seconds until it reboots by itself and then flash off, 2) press power and vol. down together until LG logo turns on, 3) Let go of both buttons briefly (1/2 second), push both buttons together again for 1 second, only to let go of the volume down button, 4) This should bring up a white Factory Reset screen, 5) push Power button 3 times to enter TWRP or CWM recovery (hopefully you can restore a saved rom--if not download a rom (and all support files like Gapps if needed on AOSP roms) via PC on USB-OTG flash drive (buy one if you don't have one as they're so convenient, USB-OTG cable is like $2 on Epay to use your existing flash drives, or 32GB Kingston micro-Duo OTG flash drive is $15), then use File Manager of TWRP to copy the rom over to your "SD card" and then to flash them.:good:
Edit: Damn, late to the party again

If you can't boot to recovery to flash an other ROM for your variant, follow this guide, it should work.
Read it twice before you do anything!
etm34 said:
kudos to @cms88168 for this fix, i will use his guide but will make some tweaks.
http://forum.xda-developers.com/showthread.php?t=2477595
Make sure to download your versions aboot, boot, dbi, laf, misc, modem, persist, recovery, rpm, sbl1, and tz images here
and download his 7Z file (from here: click! | password: cms88168) and place all of the images into the extracted file, replacing his laf.img with yours.
next you want to hold shift and right click and open command prompt in the fastboot folder.
make sure your phone is connected and is in fastboot mode.
next we will be erasing and flashing all of the images back. do this one line at a time obviously.
Code:
fastboot erase aboot
fastboot flash aboot aboot.img
fastboot erase boot
fastboot flash boot boot.img
fastboot erase dbi
fastboot flash dbi dbi.img
fastboot erase laf
fastboot flash laf laf.img
fastboot erase misc
fastboot flash misc misc.img
fastboot erase modem
fastboot flash modem modem.img
fastboot erase persist
fastboot flash persist persist.img
fastboot erase recovery
fastboot flash recovery recovery.img
fastboot erase rpm
fastboot flash rpm rpm.img
fastboot erase sbl1
fastboot flash sbl1 sbl1.img
fastboot erase tz
fastboot flash tz tz.img
fastboot reboot
you should then reboot and turn your phone off. Next plug it in holding the volume+ button and boot into download mode (it should work now) if not you might not have downloaded the right versions for your phone or something else is completely wrong and i dont know how to fix it.
Next you should revert to stock using this guide.
http://forum.xda-developers.com/showthread.php?t=2432476
I hope this helps some people! Feel free to ask questions or provide some feedback, this is my first guide.
Click to expand...
Click to collapse

Thanks for all the replys.. I am not a noon when it comes to Roms and recovery and all.. I can get into twrp still but the thing is all my data is gone onece I flashed the wrong ROM so all my backups and everything when I try to go into download mode it goes straight back to that fast boot screen in the pic so I can't go back to stock with the lg flash tools
Sent from my Galaxy Nexus using XDA Free mobile app

Hid3rs said:
If you can't boot to recovery to flash an other ROM for your variant, follow this guide, it should work.
Read it twice before you do anything!
Click to expand...
Click to collapse
I believe this what I will have to do
Sent from my Galaxy Nexus using XDA Free mobile app

androidreviewguy said:
I believe this what I will have to do
Click to expand...
Click to collapse
If you don't understand something in the guide or need some help, hit me up via PM.
Good luck!

Hid3rs said:
If you don't understand something in the guide or need some help, hit me up via PM.
Good luck!
Click to expand...
Click to collapse
I appreciate that very much fastboot is something new to me so probely be prepared for a pm lol but won't be able to do it till tomorrow have to watch a wwe ppv with my wife lol
Sent from my Galaxy Nexus using XDA Free mobile app

androidreviewguy said:
Thanks for all the replys.. I am not a noon when it comes to Roms and recovery and all.. I can get into twrp still but the thing is all my data is gone onece I flashed the wrong ROM so all my backups and everything when I try to go into download mode it goes straight back to that fast boot screen in the pic so I can't go back to stock with the lg flash tools
Sent from my Galaxy Nexus using XDA Free mobile app
Click to expand...
Click to collapse
If you can still get into TWRP you should be able to adb push another ROM and anything else you need to flash while in recovery.

itstsquared said:
If you can still get into TWRP you should be able to adb push another ROM and anything else you need to flash while in recovery.
Click to expand...
Click to collapse
Is there anyway you can tell me how to do that or the things I would need to download?
Sent from my Galaxy Nexus using XDA Free mobile app

androidreviewguy said:
Is there anyway you can tell me how to do that or the things I would need to download?
Sent from my Galaxy Nexus using XDA Free mobile app
Click to expand...
Click to collapse
If you don't already have the Android SDK installed on your PC you will need to install and set that up first. It can be found here:
https://developer.android.com/sdk/index.html?hl=i
Next make sure you have the proper drivers for your phone installed on your computer. They can be found here:
http://www.lg.com/us/support-mobile/lg-VS980
Open up a terminal and plug your phone into your computer while it's in recovery mode and try running the adb devices command. If no devices are listed (which they weren't for me the first time), open up Device Manager (assuming you are on Windows) and find your device. Right click on it and select "Update driver software" then "Browse my computer for driver software" then "Let me pick from a list of device drivers on my computer." Now, you should be able to select the driver for your phone. I selected the "ADB Sooner Interface" and it works for me. After running the adb kill-server and then adb devices command your device should be listed. Next all you have to do adb push the ROM plus any other files you want to flash.
If you need any more help, feel free to PM me and I'll do my best.

itstsquared said:
If you don't already have the Android SDK installed on your PC you will need to install and set that up first. It can be found here:
https://developer.android.com/sdk/index.html?hl=i
Next make sure you have the proper drivers for your phone installed on your computer. They can be found here:
http://www.lg.com/us/support-mobile/lg-VS980
Open up a terminal and plug your phone into your computer while it's in recovery mode and try running the adb devices command. If no devices are listed (which they weren't for me the first time), open up Device Manager (assuming you are on Windows) and find your device. Right click on it and select "Update driver software" then "Browse my computer for driver software" then "Let me pick from a list of device drivers on my computer." Now, you should be able to select the driver for your phone. I selected the "ADB Sooner Interface" and it works for me. After running the adb kill-server and then adb devices command your device should be listed. Next all you have to do adb push the ROM plus any other files you want to flash.
If you need any more help, feel free to PM me and I'll do my best.
Click to expand...
Click to collapse
Nice man thank you so much I will try tonight and tomorrow and check back with you
Sent from my Galaxy Nexus using XDA Free mobile app

[GUIDE] How to unbrick HUAWEI P8 when failed to update and ends in bootloop

Hi
I see someone here have problems with bricked phone. It just keeps restarting and you cant even turn it off.
The problem is here that UPDATE never ended to 100% and software successfully changed boot.img to the new one
but with old system on the phone.
Its even worse if you have TWRP recovery installed before update then it will brick the phone too.
Allways install stock recovery on current rom before update firmware.
Ok i will start now with this guide because i had same problem and fixed it by myself.
I will not put any links to downloads find them self GOOGLE is your friend
First of all if you were on B200 5.0.1 version of android then you need B170 firmware to extract boot.img and recovery.img from
the UPDATE.APP file
For that you need a software called Huawei Firmware Extractor
Download it and install
Now you need even ADB/FASTBOOT on the computer. If you dont have download and install. Install even drivers for the phone
Now Open the Huawei Extractor and add the UPDATE.APP file.
Now you will see alot of files below
Now mark the boot.img system.img and recovery.img and extract them to the desktop of your PC
Now copy those files to the ADB/FASTBOOT folder.
You phone i still under the bootloop and you need to get it into FASTBOOT mode. Only way to do it is to plug in USB cable to the phone.
Now as soon the phone reboots by itself hold Power and Vol down button until you see white screen and fastboot mode
Now go to the ADB/FASTBOOT folder where you copyed files and hold shift and press right mouse button to get "Open command window here"
So you will be in fastboot and you will see C:/ADB that is right directory
Now start with fastboot erase cache
Then write fastboot flash boot boot.img and hit enter
When done do following fastboot flash recovery recovery.img and hit enter
You can if you want even try to flash system.img by writing fastboot flash system system.img or fastboot flash system.img dont remember that combination
but try and see wich works.
Now write fastboot rebootand phone will reboot . If you still have bootloop then as soon phone goes black then Hold Vol+up and Power until you see recovery.
Over there make factory reset and cache and then reboot.
If you still cant boot into recovery then you need to get Firmware B170 and put it on you SD card in DLOAD folder
to flash it from scratch. Same here is that you need to have USB plugged in in order to get to EMUI flash mode or it will wont work.
Remember that you only need UPDATE.APP in the DLOAD folder from B170 firmware.
I know my English sucks but im trying to help...

hello, i tried bouth solutions and i cant get my phone to boot up i dont now maybe i am doing something wrong i was on b200 rooted and twrp instaled an i updated to android 6 and i m stuck in bootloop you can help me with something i am out of ideas. thanks in advance

noraru said:
hello, i tried bouth solutions and i cant get my phone to boot up i dont now maybe i am doing something wrong i was on b200 rooted and twrp instaled an i updated to android 6 and i m stuck in bootloop you can help me with something i am out of ideas. thanks in advance
Click to expand...
Click to collapse
Yes, this is the your mistake
Never update firmware with instaled TWRP. First you need to flash to factory recovery then install the original firmware like B170(B200), then update to Marshmallow

Nevermind, fixed it.

sokkoban said:
Yes, this is the your mistake
Never update firmware with instaled TWRP. First you need to flash to factory recovery then install the original firmware like B170(B200), then update to Marshmallow
Click to expand...
Click to collapse
i know is my mistake , i flash recovery img from b170 but i cant get in to recovery mode anymore hao much i have to push the vol up+power buton? i only can boot in to fastboot

rndll said:
Nevermind, fixed it.
Click to expand...
Click to collapse
How please ?

TopperBG said:
How please ?
Click to expand...
Click to collapse
You don't flash img files through the recovery. Flash recovery.img, boot.img, system.img and cust.img manually through the fastboot screen (vol down + power) using either the windows command or mac terminal.

Thank you, at the moment I'm trying the same.
---------- Post added at 03:16 PM ---------- Previous post was at 03:12 PM ----------
rndll said:
You don't flash img files through the recovery. Flash recovery.img, boot.img, system.img and cust.img manually through the fastboot screen (vol down + power) using either the windows command or mac terminal.
Click to expand...
Click to collapse
Which firmware, I've tried with full B200 and extracted images, but no success. B170 ?

Don't have success, please give advices ?

1. I Download the B313 update and extract the boot.img and recovery.img from update.app using Huawei Firmware Extractor.
2. Connect your P8 to your PC/Mac. Hold down volume down + power just before you feel the vibration and the Huawei logo shows up. This will boot you to the Fastboot/Rescue screen.
3. Using the windows command prompt or mac terminal, flash the B313 recovery and boot images using Fastboot:
Code:
fastboot flash boot boot.img
Code:
fastboot flash recovery recovery.img
After flashing these, if you reboot normally, the bootloop should be gone but you will get stuck at the Huawei logo. However, you'll now be able to access recovery (volume up + power) and the 3 button update (vol up + vol down + power) modes.
You can now reboot either holding the power down or issue a fastboot command:
Code:
fastboot reboot
4. This may be optional and may not have any bearing but at this point I was ok with losing data just to get the phone booting again. Boot to the recovery (volume up + power) Yes, it's not that easy using the buttons. Just try it until you get the recovery to boot.
In recovery select Wipe data/factory reset and Wipe cache partition.
5. Download the B170 Full ROM and extract the dload and custom folder to your microSD. Use a card adapter/card reader.
6. IMPORTANT: Disconnect your P8 from your computer if it is still connected. Doing the next step while you're connected through USB will cause the update to get stuck at 90% and if you force a reboot, your device will bootloop again.
7. Reboot from the recovery and boot into the EMUI Updater using the 3-button method (volume up + volume down + power). Let the phone update and voila! You're back in business!

Confirm, it works!
 @rndll bold and make red color B313

TopperBG said:
Confirm, it works!
 @rndll bold and make red color B313
Click to expand...
Click to collapse
so it works , i have to gflash boot,cache and recovery img from b313?

I've interrupted update (B313), write to SD /dload full B200 and started Recovery. Update gone just fine and phone started with brand new B200. Even don't reset or wipe !

noraru said:
so it works , i have to gflash boot,cache and recovery img from b313?
Click to expand...
Click to collapse
You only need the boot and recovery images.

rndll said:
You only need the boot and recovery images.
Click to expand...
Click to collapse
thanks my friend it woooorks, my phone booted up at last, thank you very much you saved me i allready packed my phone to take it to the service you are great thanks again for your help.

noraru said:
thanks my friend it woooorks, my phone booted up at last, thank you very much you saved me i allready packed my phone to take it to the service you are great thanks again for your help.
Click to expand...
Click to collapse
You're welcome.

:good:

Hey TopperBG,
i'm in the same Bootloop as you described.
I tried every ROM I found on the internet but the combo with Vol Up + Vol Down + Power won't work. There ist always a fail after 1 % loading.
The second I tried was on fast boot. Problem im my boot loader is locked. So there is no chance for me to get something flashed.
Last option was your comment. I've loaded the B200 Rom on my SD-Card in /dload and tried (the second time) the Vol Up+Vol Down+ Power combo. No success. Then I tried just Vol Up+Power to get the Recovery mode as you described. But I have no chance to boot to recovery mode.
Do I forgot a step ??
Please help
Thanks
Flo

Tell me first what you've done when become to bloop ?
With boot and recovery from that ROM you must flash.
If you can forcibly start update (vol+ vol- power) you have a chance to update properly with update.app in /dload folder

I tried to update through local update on the Phone. But not with .zip. I tried the .app directly. Now i know it was the wrong Choice.
Flash with fastboot is no option for me because of the locked bootloader.
If I do the Force start with the new marshmallow rom (update.app) there is a warning that i'm using the wrong version for my phone.

Recovery doesn't work

Hi, this is my first post on this forum.
At the beginning I'm sorry for bad English, I am using the translator.
I have a lenovo k3 note and everything worked as it should have, until it returned from China (I sent it there, then I received a reply that the screen is damaged, do I decided to fix it here, in Poland).
Currently, I cannot install CWM or TWRP. I tried to do it in many different ways. When the phone turned off, I hold volume buttons and power, but then it showed me a message at the bottom of the screen: fastboot mode.
I tried to install twrp or CWM using adb commands. I was just trying to run recovery using commands. I also tried different versions of recovery using flashtool and the result was the same. Three buttons and a message about fastboot mode.
I can install new rom using only flashtoola and I did it. I currently have K50a40_S427_160518_ROW, android 6.0.
I read somewhere that I can have a locked bootloader. I tried the command fastboot oem unlock by adb but it did not work.
Please give me a hint or tell me what to do step by step, and I will still try to properly install twrp.
Thank you in advance.

Flashing recovery
You Can flash Recovery using SP flash tool if you have MT6752(check in device information) using this method or (if You Have other model please update the scatter file and recovery with yours)
Install all the drivers.
[*]Enable USB debugging and ALLOW OEM UNLOCK in settings.
Now download & extract SP flash tool from here
Now Download and extract TWRP recovery from here
Now, Go to Options>Download and check the two checkboxes
(Make sure Download only is selected)Load the Scatter file and click download button.
Connect your device Powered OFF
Check if recovery is Installed (if you Have Problems Rooting follow this Guide)

Ok, I get down to work. What is the decryption key to mega.nz to the link you provided?

Help to access fastboot mode on l90 d405n

Hellou. So I wiped all phone partitions them I try to install some roms but I get flash error. So I try to flash other version of twrp from official site. When I flash it I rebooted my phone back to recovery and I get error. So now my phone without any rom and recovery. So i tried to flash original firmware with lg flash tool 2014 but that program always show window to retry and replug phone back to pc. All phone drivers and usb works great. So how can I access fastboot and try to flash recovery image via fastboot. I only can access download mode on my phone....

PurposeS3 said:
Hellou. So I wiped all phone partitions them I try to install some roms but I get flash error. So I try to flash other version of twrp from official site. When I flash it I rebooted my phone back to recovery and I get error. So now my phone without any rom and recovery. So i tried to flash original firmware with lg flash tool 2014 but that program always show window to retry and replug phone back to pc. All phone drivers and usb works great. So how can I access fastboot and try to flash recovery image via fastboot. I only can access download mode on my phone....
Click to expand...
Click to collapse
Could you take a picture of the download mode screen and send it or describe the screen you see for download mode?

0000.0000.00 said:
Could you take a picture of the download mode screen and send it or describe the screen you see for download mode?
Click to expand...
Click to collapse
Download mode works fine

PurposeS3 said:
Download mode works fine
Click to expand...
Click to collapse
Did you try https://forum.xda-developers.com/lg-l90/general/guide-flash-stock-kdz-offline-lg-l90-t2803479