i need help to install twrp on me lg f400l i have tried all the method i know and also the bump..
but everytime i flash the recovery its giving me an error.
boot cert failed.
i think i need to unlock the phones bootloader.
does Anyone sucessfully install twrp on f400l lte u+?
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I used the GAIOv1.50 toolkit (Great tool! I just obviously don't know what I'm doing) to root my LG Optimus G I also used it to unlock the bootloader but I did not use it to install the custom recovery or restore the unlock stock boot. After doing what I just mentioned I restarted my phone. I was able to access the bootloader menus, but after realizing that I didn't install the custom recovery or restore the unlock stock boot, I performed those steps from the backlight screen. Now the bootloader screen loops and I can no longer access the menus and I don't know what to do from here (Or from the beginning obviously). I am definitely a NOOB and need help.
Please help!
iviarchello said:
I used the GAIOv1.50 toolkit (Great tool! I just obviously don't know what I'm doing) to root my LG Optimus G I also used it to unlock the bootloader but I did not use it to install the custom recovery or restore the unlock stock boot. After doing what I just mentioned I restarted my phone. I was able to access the bootloader menus, but after realizing that I didn't install the custom recovery or restore the unlock stock boot, I performed those steps from the backlight screen. Now the bootloader screen loops and I can no longer access the menus and I don't know what to do from here (Or from the beginning obviously). I am definitely a NOOB and need help.
Please help!
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Click to collapse
Did you solve the problem? How? If not, try this http://forum.xda-developers.com/showthread.php?t=2010624
So I followed all the right steps to getting the bootloader unlocked, installing TWRP as the custom recovery and installing SuperSU root. Now I'm stuck in a bootloop with no way to access the bootloader from ADB... Hardware access to the bootloader doesn't work. I get the bootloader unlocked notification but then it goes straight into boot. Windows recognises that there's a device there but I can't access the files and see it in adb... Feeling very lost with this
I had a similar issue. TWRP installed correctly, flashed SuperSU. Unable to boot - phone stuck on the initial splash screen.
In the end I had to us LGUP to flash a suitable KDZ file and resurrect the handset. Read more about it here: http://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
Curiously, I have greater success using adb and fastboot on a Mac than I do on Windows 10 from which Fastboot resolutely refuses to communicate with the phone.
Hello. Many times i tried to unlock my LG G4 bootloader without any success. Apperantly my G4 is not the european model so it cant be unlocked.
Recently i've heard about app calld RASHR that can install a custom recovery on locked bootloader devices
(here is the link https://forums.oneplus.net/threads/...unlocking-bootloader-on-oxygen-os-opx.417946/).
CAN I MAKE IT ON THE G4? AND IF SO ARE THERE ANY RISKS?
Has anyone successfully put a custom ROM on this device? I used to have an old Samsung S3 where I was able to put on CM and it was a piece of cake, but with this tablet I'm having issues with the bootloader being locked.
So far I've tried to install TWRP, CWM, and Philz custom recoveries. The problem seems to be with the versioning. Everything is customized for the v500. I was able to install Philz_Touch_recovery_V490.img which allowed me to boot into some sort of 'fastboot' recovery mode when before I would just get the message: "error boot certification verify" on start up. This fastboot mode isn't the Philz interface and it doesn't give me the option to back anything up or boot a ROM. It doesn't really give me any options except to restart, restart bootloader, or power off.
Were you on Lollipop or Marshmallow before you bricked it? (Which one?)
Lollipop.
The device is not bricked as I am still able to access the stock ROM. I just never was able to access my boot loader. I keep getting the error message "Error: boot certification verify" My carrier is US Cellular and they tend to lock a lot of features on their device. Is it possible they blocked boot loader access to be assholes?
BTW, my device is successfully rooted. (I checked with a root verify app.)
I'm looking into implementing the loki-master hack to unlock my boot loader and hopefully then Philz recovery will work as intended. (It is the only custom recover option that didn't give me an out-right failure message). This does seem to be an advanced developer tool requiring some code skills. Anybody have any tips for this Loki procedure?
BossRoyce said:
Lollipop.
The device is not bricked as I am still able to access the stock ROM. I just never was able to access my boot loader. I keep getting the error message "Error: boot certification verify" My carrier is US Cellular and they tend to lock a lot of features on their device. Is it possible they blocked boot loader access to be assholes?
BTW, my device is successfully rooted. (I checked with a root verify app.)
I'm looking into implementing the loki-master hack to unlock my boot loader and hopefully then Philz recovery will work as intended. (It is the only custom recover option that didn't give me an out-right failure message). This does seem to be an advanced developer tool requiring some code skills. Anybody have any tips for this Loki procedure?
Click to expand...
Click to collapse
I would doubt if you could still use the Loki method on a stock LG Lollipop ROM. For example, LG patched the Loki exploit on the VK810 LG G Pad 8.3 as of KitKat, and Lollipop on this device can't even boot the ROM using the old bootloader - it requires the Lollipop bootloader. In our case, the exploited bootloader can be temporarily reflashed to get into TWRP, but then we have to reflash the Lollipop bootloader to boot the ROM again.
sorry bring up old stuff
so i was able to root. have su i bcked up stock recovery and basicly any recover i flash i get the boot error but also gets fastboot.
ofcoarse ive tried most common commands and she wont reconize any of them.
im a long time lg user and thinking that this old of a sytem needs to be bumped like g3
att has always had a strictly locked bootloader state
Help oem unlock m8
I am currently trying to unlock bootloader on Lg gpad f 8.0 v495. At&t I follow all steps until enable oem unlock in developer options.. this option is missing in my developer options.. anyone know why or how to fix this or can I proceed without it. Help please.
BossRoyce said:
Has anyone successfully put a custom ROM on this device? I used to have an old Samsung S3 where I was able to put on CM and it was a piece of cake, but with this tablet I'm having issues with the bootloader being locked.
So far I've tried to install TWRP, CWM, and Philz custom recoveries. The problem seems to be with the versioning. Everything is customized for the v500. I was able to install Philz_Touch_recovery_V490.img which allowed me to boot into some sort of 'fastboot' recovery mode when before I would just get the message: "error boot certification verify" on start up. This fastboot mode isn't the Philz interface and it doesn't give me the option to back anything up or boot a ROM. It doesn't really give me any options except to restart, restart bootloader, or power off.
Click to expand...
Click to collapse
can you point me to the files you used to root the device.
THank you
Lg g pad f 8.0 v495
I rooted with kingroot apk but make sure you use kingroot version no higher than 4.5 . Because you are going to want to use SuperSume to replace kingroot as superuser it runs alot smoother. And for some reason any version higher than 4.5 of kingroot the supersume always freezez u. Hope this helps. If u get time pm have a question totally unrelated to the g pad but could use some help.
Dear all,
I'm stuck and I don't know what to do.
I can't root my LG G3 D851 (T-Mobile) phone.
Recovery mode is only deleting the files (Original LG screen).
Purple, oneclickroot, kingroot they all fail cause they can't start in Recovery Mode.
I think that my Bootloader is blocking this, but LGUP doesn't recognize my Phone.
LG Flash no working DLL? I'm stuck and I'm starting to miss ODIN.
Is anyone able to help?
Cause I don't see it anymore
I have a variant of your phone, the LG G3 D858HK, I sort-of had the same issue and also found that KingRoot, Purple, etc failed, but Towelroot worked when I took the phone out Recovery Mode ..... after about the 10th attempt at trying to root using it that is...... Apparently it can take several attempts using the app before you obtain root
Mr-Dutch said:
Dear all,
I'm stuck and I don't know what to do.
I can't root my LG G3 D851 (T-Mobile) phone.
Recovery mode is only deleting the files (Original LG screen).
Purple, oneclickroot, kingroot they all fail cause they can't start in Recovery Mode.
I think that my Bootloader is blocking this, but LGUP doesn't recognize my Phone.
LG Flash no working DLL? I'm stuck and I'm starting to miss ODIN.
Is anyone able to help?
Cause I don't see it anymore
Click to expand...
Click to collapse
You can't unlock the bootloader. You have to downgrade to a lower version of lollipop, root with kingoroot, and run autorec.
iloveoreos said:
You can't unlock the bootloader. You have to downgrade to a lower version of lollipop, root with kingoroot, and run autorec.
Click to expand...
Click to collapse
Sorry for the late reply.
Yeah I found out as well!
Thanks!