How to unbrick? - LG Optimus L90

I tried to unlock the bootloader and install TWRP Recovery from here ( http://forum.xda-developers.com/lg-...der-flash-custom-t2839690/page14#post62245138 ), and then my phone does not want to turn on. I tried to use adb but didn't work. There is any solution?? PLEASE HELP ME:crying::crying::crying:

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[Q] flashed recovery but cant boot into recovery

Hi Guys ;
I have unlocked the bootloader of my HTC one and now inside fastboot it shows UNLOCKED. I have also tried to flash both TWRP and CWM recoveries using fastboot method and both finishes with success with no error messages.
but the problem is that I can not boot into recovery. I dont know what happens exactly but seems rebooting into recovery fails and phone reboots again into normal mode so I see the htc boot screen twice and then I am in normal mode.
Do you have any ideas ?
Regards
I finally managed to install TWRP. the trick was to disable fast boot in power settings , then turn off the phone completely and enter hboot and then fastboot.
I was entering fastboot directly through adb and it was not working ! it should be a bug inside bootloader. it should not matter how you enter fastboot , but in this case it does matter ! I hope it helps someone.

Rooted and unlooked the boot loader with debugging on

Dear all,
I have unlock my boot-loader without USB debugging on and try to push recovery file inside,
I realized my mistake few days ago when I am not able to enter on recovery mode, I have search all the forums to find solution, and some suggested to re-lock the boot loader, I performed the re lock process, and then unlock it with boot-loader on. Which result in everything erase,
But still I cant enter into recovery mode. Can somebody advice what is the problem. I think as I was doing rooting without debugging it create some errors, now what I understood to installed RUU and lock the phone.
Please advice, if that will solve my problem of rooting, I can not so S-OFF as well.
Problem :
Un look the boot loader without debugging on.
Push the rooted file without debugging on
Solution
?
Please advice,
Thanks

Can't boot into recovery.

Hello,
So I have a P7 at B126. I tried rooting it with kingroot and tried to install TWRP. I got to the part where you have to use fastboot to flash the img and it fails so I gave up. Now I am trying to get into recovery and I can't. It just either goes to a black screen or a Boot failed screen.
Thanks in advance
Hi, I'm a little confused right now. Explain what you did so far a bit more detailed, so we could help you.. Which instruction were you are following? What was the exact error? Is your bootloader unlocked? Can you boot normally?
l3Nni said:
Hi, I'm a little confused right now. Explain what you did so far a bit more detailed, so we could help you.. Which instruction were you are following? What was the exact error? Is your bootloader unlocked? Can you boot normally?
Click to expand...
Click to collapse
I can boot normally.
What I did was this.
I followed the guide to root my phone. Rooted it and then tried to install the TWRP custom recovery. It failed at the installing the recovery for some permission error. So I stopped trying to install it. Now I apparently don't have a recovery at all.
I also installed some root apps like SetCPU, Xposed(Which didn't work), SuperSU(Which didn't Work)
If I try to adb reboot recovery it just takes me to the boot failed screen with the android logo on it. If I try using the Power + Down button it just shows me the huawei ascent P7 screen and just go black.
Also when I go to the fastboot/rescure mode it says my bootloader is unlocked.
Thanks for the reply.
Ah okay. So, boot into the fastboot mode, put the recovery.img in the adb folder on your pc, run cmd and type 'cd c://..' (location of adb folder), then 'fastboot flash recovery [name of recovery.img]' (for example 'fastboot flash recovery recovery_twrp.img'). Now you should get a working recovery.
Are you sure you really got root access? Eventually due to this you got the permission error..
l3Nni said:
Ah okay. So, boot into the fastboot mode, put the recovery.img in the adb folder on your pc, run cmd and type 'cd c://..' (location of adb folder), then 'fastboot flash recovery [name of recovery.img]' (for example 'fastboot flash recovery recovery_twrp.img'). Now you should get a working recovery.
Are you sure you really got root access? Eventually due to this you got the permission error..
Click to expand...
Click to collapse
I do because adb has admin permissions but fastboot doesn't. I tried that with trying to flash twrp on my p7 but i get a failed error after like a second I the command. So I tried flashing a stock recovery and it throws the same error in fastboot.
When I type fastboot devices I get this
? fastboot
No id for my phone but adb sees it.
Ok, your pc does obviously not recognize the p7 in fastboot mode. Did you install the Hi Suite? Through this way you should get the correct drivers (maybe even update/reinstall). If this does not help, I think I can't help you, sorry. You may wait for more help or google what do when the device isn't recognized in fastboot.
Just flash the newest SuperSU.zip when you got a recovery.. That should fix problems with root apps/ the su binary.
Offtopic: I'm not sure if you noticed, but, you're running a pretty old firmware.. You may think about updating
l3Nni said:
Ok, your pc does obviously not recognize the p7 in fastboot mode. Did you install the Hi Suite? Through this way you should get the correct drivers (maybe even update/reinstall). If this does not help, I think I can't help you, sorry. You may wait for more help or google what do when the device isn't recognized in fastboot.
Just flash the newest SuperSU.zip when you got a recovery.. That should fix problems with root apps/ the su binary.
Offtopic: I'm not sure if you noticed, but, you're running a pretty old firmware.. You may think about updating
Click to expand...
Click to collapse
Hi Suite installed and correct drivers are loaded(I hope) and yes thats why Im trying to get this fixed because it wont even let me update firmwares
Try on another pc.. You could also try flashify (look in Google play), but in case of a softbrick you have real problem. Do this on your own risk, most times nothing bad will happen, but it could!
I would recommend to flash the stock recovery, update up to B621 and then installing a custom recovery.
can't boot into recovery
stoutrouge said:
Hello
So I have a P7 at B126. I tried rooting it with kingroot and tried to install TWRP. I got to the part where you have to use fastboot to flash the img and it fails so I gave up. Now I am trying to get into recovery and I can't. It just either goes to a black screen or a Boot failed screen.
Thanks in advance
Click to expand...
Click to collapse
Hi mate.
1. Use your pc, Go shuame.com and download "rom flash program".
2. Enter fastboot&rescue mode and connect your phone and PC
3. The program will recognize your phone.
4. Download anyrom and flash by the program.
The process will not complete but you will have Shuame recovery.
But my case it didn't work properly
5. I downloaded CWM from here "pan.baidu.com/s/1dDq0qcT" password :bttc
Start this program with connect your phone and press nomber 1 and ENTER.
I don't exactly remember my phone was on fastboot & rescue mode or recovery mode.
But I could get recovery and did rom flash so it was fixed.
*****from: Godfrey Peligrino ---sorry i dont know how to post BUT, this guide helped me with my p7 L10 B619..just connect it to pc and let it boot over and over and when pc acknowledge you phone..click rom and just wait if not do it again..hope this will help you too..the writings is on chinese so just copy the english thumbnails before you proceed to download...(QUOTE) THANKS TO THE GUY WHO POST THIS....HE IS TOMODACHI5..

Mi3 W bricked ( please help )

Hi All,
Hope some will help guide me to the right way
Its My friend phone Mi3
I tried to update his phone using updater in miui, after choose update rom cancro .zip just finish sucessfull but restart like nothing happen.now Simcard not detected.
I tried to reset factory, failed it just delete some of it but data still there, so went to recovery ( in chinese just know the word emmc , so i choose to wipe data) successfully reseted .
Ok fine, i tried to root using kingroot ( success ) after that i tried to flash twrp, nothing happen, so try to enter fastboot (manual and adb)it just restart and came back to system, tried to go into recovery also the same reboot and nothing happened.
In adb mode ' adb devices ' detect 0123456789abcdef , when i check in phone imei and baseband 'unknown'
Already tried fix using adb shell but failed
miui pc suite not detecting phone
Try most driver suggested not working
Pc just detect storage only
So now
The phone
-boot normaly,
-no sim detected
-rooted by kingroot but cant flash twrp
-wifi useable (working)
-no imei (unknown)
-no fastboot ( cant go edl mode)
-recovery mode just (chinese ,test mode... And emmc deleted)
This Mi3 W
-Cannot enter or go into Fasboot manually or adb command ( so cannot miflash, flash boot or recovery img, cant edl mode)
-tried flash twrp but cannot boot to twrp recovery
So most unbricked steps need to go into fastboot in order to recover back. Is there any other way?
Please help
Im blurred rite now
Anybody?
I don't understand be a bit clear and specific
Which ROM was the phone on before flashing?
hi
1. please first try fastboot rom flashing via EDL...
for going to EDL ;
on adb ;
# reboot edl
or with a EDL cable ...
or via test point ;
photo ; https://1.bp.blogspot.com/-wKylsSuw...Xe7YbdcIsaIgCK4B/s640/mi3_9008_test_point.jpg
2. or restore qcn via qpst from here ; https://drive.google.com/open?id=0B4oUiKSTOb7oRUhPUm5kekpTOUk

bootloop or bricked?

yesterday im trying to unroot my gr3 2017/p8 lite 2017 and i successfully unroot it using a flashable zip file i dont remember
that thread here in xda also.. after unrooting my phone i decided to relocked it using my flash oem relock unlock codes
after entering that codes it prompts saying would you like to relocked blah blah and i tick yes and boom it relocks after booting bam my phone stock in eRecovery i tried everything volume up plus power button all ways of button tricks and still im stock in eRECOVERY EMUI please somebody help me i think my OS also disappear even my twrp disappear.. please help me
arthro1987 said:
yesterday im trying to unroot my gr3 2017/p8 lite 2017 and i successfully unroot it using a flashable zip file i dont remember
that thread here in xda also.. after unrooting my phone i decided to relocked it using my flash oem relock unlock codes
after entering that codes it prompts saying would you like to relocked blah blah and i tick yes and boom it relocks after booting bam my phone stock in eRecovery i tried everything volume up plus power button all ways of button tricks and still im stock in eRECOVERY EMUI please somebody help me i think my OS also disappear even my twrp disappear.. please help me
Click to expand...
Click to collapse
Relock your phone again. Flash now the stock recovery. Then it's alright.
i think you didnt understand what im saying bro. i unroot and relocked already after relocking my phone got stock in eRecovery and i cant get out even unlocking again etc. still im stock
To complete your initial operation, you need the recovery. From your description, I see you had TWRP before. That will not do. Flashing in the bootloader you can only unlock with OEM. So, relock, recovery flash and then lock again.
ChinHon said:
To complete your initial operation, you need the recovery. From your description, I see you had TWRP before. That will not do. Flashing in the bootloader you can only unlock with OEM. So, relock, recovery flash and then lock again.
Click to expand...
Click to collapse
yes your right after relocking my phone i lost my twrp.. thats the time im stock in eRecovery... did you mean that i will unlock it again? not relock cause it is already relocked sir.. i will unlock it again to flash and then lock it again? the question is how? i already put my code to unlock my phone again but it doesn't work anymore cause i cant flash using adb fastboot anymore.. adb fastboot cant read my phone since i relocked.. sorr for my bad english.. i hope you understand what im saying..
My English is also not better. I understand you. Have you ever tried the device with key combi in the recovery to start, without usb cable? Separated from pc and charger?
ChinHon said:
My English is also not better. I understand you. Have you ever tried the device with key combi in the recovery to start, without usb cable? Separated from pc and charger?
Click to expand...
Click to collapse
how sir? i dont get what you mean... can you please show me a tutorial?
So I wrote it in my root tutorial:
Button combinations:
Fastboot Mode: Vol.- and Power with PC connection
Recovery: Vol. + and Power without PC connection
eRecovery: Vol. + and Power with PC connection
All system reboots always without PC connection.
Without PC connection means that the cable from the PRA is separated, only from the PC is not sufficient.
ChinHon said:
So I wrote it in my root tutorial:
Button combinations:
Fastboot Mode: Vol.- and Power with PC connection
Recovery: Vol. + and Power without PC connection
eRecovery: Vol. + and Power with PC connection
All system reboots always without PC connection.
Without PC connection means that the cable from the PRA is separated, only from the PC is not sufficient.
Click to expand...
Click to collapse
i tried it all sir fastboot mode is working but cant read my phone in adb fastboot tool
vol. up plus power button is the same it still stock on eRecovery when booting.. is my phone dead already??
With the PC program "DC Phönix" you can save it again. Unfortunately I do not know about it. Google knows more.
ChinHon said:
With the PC program "DC Phönix" you can save it again. Unfortunately I do not know about it. Google knows more.
Click to expand...
Click to collapse
i hope someone will help me with that... thanks bro for your help
i need your help here guys please help me recover my phone
Unlock again from bootloader and flash a TWRP Backup from xda thread
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