flash stock rom without download mode - G Pad 10.1 Q&A, Help & Troubleshooting

Hi,
I made the mistake to flash magisk (from TWRP) and now my v700 will not boot anymore and also won't power off.
I wanted to flash stock Kitkat... but can't get to "download" mode... I can get to TWRP, but I don't think that helps...
Did I just brick my loved v700?
Thanks.

aolex said:
Hi,
I made the mistake to flash magisk (from TWRP) and now my v700 will not boot anymore and also won't power off.
I wanted to flash stock Kitkat... but can't get to "download" mode... I can get to TWRP, but I don't think that helps...
Did I just brick my loved v700?
Thanks.
Click to expand...
Click to collapse
Well, I managed to fix it.
As I had TWRP installed, I extracted the boot.img from the kdz and "dd" to the partition but... I also had wipe out "internal storage" in one of my tries... so that didn't fix it, but removed the "error boot credentials"...
So I decided to follow the instructions to convert the kdz to an zip... and flash that zip and it worked!

Related

Help! I flashed wrong wrong boot image into my lg g3, it won't boot

Hi everyone. So i have an lg g3 d850 version, I had rooted it installed cyanogenmod 12 and twrp recovery, everything was fine. Problem came up when i tried to upgrade twrp recovery to v3.0.0.0 (latest version). I downloaded the twrp.img into my sd card, I used Flashify and erroneously chose FLASH BOOT IMAGE instead of RECOVERY IMAGE. Since they are both .img files flashify flashed it. I tried to reboot my phone it would not boot, just kept displaying on and off the lg logo, i guess it couldn't find the correct boot image. I thing flashify flashed a recovery .img into the boot partion (what a bummer!). So I tried to restore phone to stock, it booted into download mode (vol up+usb cable), used the lg flash tool and installed the stock .tot file with its dll, went well to completion. Tried to boot again, but it would not boot. I guess the boot partion is still unflashed. Someone please assist me on this problem, is there a way i can get and flash the original boot .img into my LG G3 D850?
Flash Boot from CyanogenMod
Hello and thank you for using Q/A,
you can download the CyanogenMod 12 ZIP and extract the boot.img from Cyanogen. Now flash the extracted Boot.img via Fastboot.
Kind regards
Trafalgar Square
Do you have a step by step guide on how to do that? Remember the tot method completed, so i guess its back to stock.
Densmac said:
Do you have a step by step guide on how to do that? Remember the tot method completed, so i guess its back to stock.
Click to expand...
Click to collapse
On computer -> open the rom zip via winrar or any archive utility, find boot.img, copy over to phone (connect while in twrp), tap on IMG in twrp (there are 2 options - zip and img, currently it´s zip mode), then find the boot.img, choose to flash and select "boot" or "kernel" (it asks you if it´s recovery or kernel)
Don´t panic , you have twrp at lease
I don't have twrp
Well doesn't make sense.
-you had older twrp
-you wanted new one
-you flashed it to boot partition?
It means you can't boot Android but you still have twrp
volume down and power,wait for lg logo. Release and hold again..confirm twice
Poslano sa mog Nexus 5X koristeći Tapatalk

recovery install problem

Hello
i've just installed the twrp recovery on my lg g4 (after unlock the bootloader of course)
and when i try to boot in recovery mode it doesnt work (it shows me an android logo with an exclamation mark)
plz help me :S
thanks
It did not install properly. Same happened to me. Try
fastboot erase recovery
fastboot flash recovery twrp.img
Then try to boot to recovery using twrp manager app
jkoljo said:
It did not install properly. Same happened to me. Try
fastboot erase recovery
fastboot flash recovery twrp.img
Then try to boot to recovery using twrp manager app
Click to expand...
Click to collapse
thanks for your comment!
but i still have this problem...
jkoljo said:
It did not install properly. Same happened to me. Try
fastboot erase recovery
fastboot flash recovery twrp.img
Then try to boot to recovery using twrp manager app
Click to expand...
Click to collapse
After you have installed TWRP via adb you must boot (or stay there) into revocery and falsh the twrp-xxxx.img as "revocery" (buton down right to change from image to recovery).
hannsheinz said:
After you have installed TWRP via adb you must boot (or stay there) into revocery and falsh the twrp-xxxx.img as "revocery" (buton down right to change from image to recovery).
Click to expand...
Click to collapse
thanks man but i cant boot into recovery... this is the problem... Instead of boot into recovery, it shows me a android logo with exclamation mark..
daniel1803 said:
thanks man but i cant boot into recovery... this is the problem... Instead of boot into recovery, it shows me a android logo with exclamation mark..
Click to expand...
Click to collapse
Try this:
adb reboot bootloader
fastboot.exe flash recovery twrp-xxxx.img
fastboot.exe boot twrp-xxxx.img (same filename as above)
Then flash the same twrp-xxx.img file via "install"
After this you can direct boot into revocery with apps like quickboot, or via Vol-Down, Power-On, or direkt via reboot meneu if you use G4 Tweak Box.
If you are on 6.0 the recovery will never boot up. But don't worry, all you need to do is just download kernel package like SimpleGX, from this package copy the boot.img, then flash it via fastboot. After that let the phone boot up, reboot it to bootloader again and flash twrp.img. If you did it properly the twrp will boot up. REMEMBER to flash full kernel package otherwise you can have problems with your device.
Adam Myczkowski said:
If you are on 6.0 the recovery will never boot up. But don't worry, all you need to do is just download kernel package like SimpleGX, from this package copy the boot.img, then flash it via fastboot. After that let the phone boot up, reboot it to bootloader again and flash twrp.img. If you did it properly the twrp will boot up. REMEMBER to flash full kernel package otherwise you can have problems with your device.
Click to expand...
Click to collapse
is it save to flash the SimpleGX kernel without the included modules in the zip file?
because i only manged to flash twrp for h811 on my h815 with v20d and unlocked bootloader... i am confused
the-erazer said:
is it save to flash the SimpleGX kernel without the included modules in the zip file?
because i only manged to flash twrp for h811 on my h815 with v20d and unlocked bootloader... i am confused
Click to expand...
Click to collapse
Never flash recovery for H811 on H815, there is reason why they are different.. You could have bricked your device. Yes flashing this boot.img is completely safe as long as you flash full package later, otherwise you might have problems with software. I've done so many times without any issue, anyway it's not a softbrick, you always reflash the firmware however be aware of that if you do it wrong and get your phone bricked without access to custom recovery there is no way to recovery your data. My G4 is dead but this is caused by the well know bootloop issue (hardware fail).
Adam Myczkowski said:
Never flash recovery for H811 on H815, there is reason why they are different.. You could have bricked your device. Yes flashing this boot.img is completely safe as long as you flash full package later, otherwise you might have problems with software. I've done so many times without any issue, anyway it's not a softbrick, you always reflash the firmware however be aware of that if you do it wrong and get your phone bricked without access to custom recovery there is no way to recovery your data. My G4 is dead but this is caused by the well know bootloop issue (hardware fail).
Click to expand...
Click to collapse
Thanks for the quick answer... I got a replacement and it ships with v20d twrp for h811 was the only solution to get root... Now i have seen your post... Will try it later... I hope it works
Do you know the reason why we have to flash the kernel? Some poeple can flash twrp without...
edit: i have flashed the kernel but flashing twrp dont want to flash...
the result of fastboot is positive but if i want to boot in recovery the screen stays black and then the phone boots up normal to os...
woult it help to kdz the phone to lolipop?
Gesendet von meinem LG-H815 mit Tapatalk
Adam Myczkowski said:
If you are on 6.0 the recovery will never boot up. But don't worry, all you need to do is just download kernel package like SimpleGX, from this package copy the boot.img, then flash it via fastboot. After that let the phone boot up, reboot it to bootloader again and flash twrp.img. If you did it properly the twrp will boot up. REMEMBER to flash full kernel package otherwise you can have problems with your device.
Click to expand...
Click to collapse
the-erazer said:
Thanks for the quick answer... I got a replacement and it ships with v20d twrp for h811 was the only solution to get root... Now i have seen your post... Will try it later... I hope it works
Do you know the reason why we have to flash the kernel? Some poeple can flash twrp without...
Gesendet von meinem LG-H815 mit Tapatalk
Click to expand...
Click to collapse
Install Twrp Manager from the Play Store and then install Twrp 2.8.7.0 from it.
It's working fine on my H815 v20d
Sent from my LG G4
welder73 said:
Install Twrp Manager from the Play Store and then install Twrp 2.8.7.0 from it.
It's working fine on my H815 v20d
Sent from my LG G4
Click to expand...
Click to collapse
I have no idea how did you manage to install TWRP recovery on official 6.0 firmware since TWRP manager requires root and to root android 6.0 you have to have modified boot image...
the-erazer said:
Thanks for the quick answer... I got a replacement and it ships with v20d twrp for h811 was the only solution to get root... Now i have seen your post... Will try it later... I hope it works
Do you know the reason why we have to flash the kernel? Some poeple can flash twrp without...
Gesendet von meinem LG-H815 mit Tapatalk
Click to expand...
Click to collapse
As I mentioned above in android 6.0 google have modified it as the stock kernel does not allow to use unsigned stuff even though your bootloader is unlocked. So only way to root/install recovery on android 6.0 smartphones is to flash modified boot.img that allows to load unsigned things. If you flash recovery without changing stock kernel you'll not brick your device but the recovery will never open, but flashing superSU might brick your device, Autoprimes flashable zips include modified boot.img I suppose.
Adam Myczkowski said:
I have no idea how did you manage to install TWRP recovery on official 6.0 firmware since TWRP manager requires root and to root android 6.0 you have to have modified boot image...
As I mentioned above in android 6.0 google have modified it as the stock kernel does not allow to use unsigned stuff even though your bootloader is unlocked. So only way to root/install recovery on android 6.0 smartphones is to flash modified boot.img that allows to load unsigned things. If you flash recovery without changing stock kernel you'll not brick your device but the recovery will never open, but flashing superSU might brick your device, Autoprimes flashable zips include modified boot.img I suppose.
Click to expand...
Click to collapse
i have no more idea what to do... i have flashed the kernel... and then recovery but when i want to enter recovery nothing happens it doesnt load. after some seconds the phone boots up normal.
before that i have tried twrp manager but the app crashes every time i want to select the recovery to install.
flashify is same as flashing over fastboot.
what is the difference between the 2 versions of twrp? h811 got another kernel than h815 but why can i load this one but the right for h815 not?
the-erazer said:
i have no more idea what to do... i have flashed the kernel... and then recovery but when i want to enter recovery nothing happens it doesnt load. after some seconds the phone boots up normal.
before that i have tried twrp manager but the app crashes every time i want to select the recovery to install.
flashify is same as flashing over fastboot.
what is the difference between the 2 versions of twrp? h811 got another kernel than h815 but why can i load this one but the right for h815 not?
Click to expand...
Click to collapse
I have no idea honestly, try to reflash the firmware. Recovery doesn't load only if you don't flash boot.img properly.
Adam Myczkowski said:
I have no idea how did you manage to install TWRP recovery on official 6.0 firmware since TWRP manager requires root and to root android 6.0 you have to have modified boot image...
As I mentioned above in android 6.0 google have modified it as the stock kernel does not allow to use unsigned stuff even though your bootloader is unlocked. So only way to root/install recovery on android 6.0 smartphones is to flash modified boot.img that allows to load unsigned things. If you flash recovery without changing stock kernel you'll not brick your device but the recovery will never open, but flashing superSU might brick your device, Autoprimes flashable zips include modified boot.img I suppose.
Click to expand...
Click to collapse
Sorry,I thought he already have root.
Btw,you can't root H815 on MM without unlocking the bootloader...
Sent from my LG G4
the-erazer said:
i have no more idea what to do... i have flashed the kernel... and then recovery but when i want to enter recovery nothing happens it doesnt load. after some seconds the phone boots up normal.
before that i have tried twrp manager but the app crashes every time i want to select the recovery to install.
flashify is same as flashing over fastboot.
what is the difference between the 2 versions of twrp? h811 got another kernel than h815 but why can i load this one but the right for h815 not?
Click to expand...
Click to collapse
just for information i have tested to kdz back to lollipop v10b... downgrade was really easy using lgup but the result was twrp doesnt work... same as marshmallow... btw github had a bug ticket for h811 there was the same only vice versa...
daniel1803 said:
Hello
i've just installed the twrp recovery on my lg g4 (after unlock the bootloader of course)
and when i try to boot in recovery mode it doesnt work (it shows me an android logo with an exclamation mark)
plz help me :S
thanks
Click to expand...
Click to collapse
how do u unlock the bootloader on a LG G4 H811 ver 20i

Issue when flashing TWRP

Hi guys
I am trying to install the latest TWRP, but every time that I try to boot into recovery through "adb reboot recovery" the phone restarts and I see the android maintenance logo.
What I did up to now:
1) I unlocked the bootloader following LG site instructions successfully. I have the bootloader unlocked message.
2) Downloaded TWRP to my windows PC for H815. After doing "fastboot flash recovery twrp-3.0.2-0-h815.img", the result seems to be successful as I get the expected OK message.
3) I try to reboot to TWRP through "adb reboot recovery" but every time goes to the maintainance logo. I tried also the button combination but I cannot see the Factory Reset menu or the TWRP menu.
Just to mention that I was completely stock V20d without root at the beginning and that the phone boots fine for the moment.
Please help.
No one had my issue? I am still trying to install TWRP and I only manage to boot it temporarily from the PC..
nasosgr said:
No one had my issue? I am still trying to install TWRP and I only manage to boot it temporarily from the PC..
Click to expand...
Click to collapse
twrp needs to be flashed from within twrp. First boot twrp:
> fastboot boot twrp.img
Now you install the image as recovery.
Jens1969 said:
twrp needs to be flashed from within twrp. First boot twrp:
> fastboot boot twrp.img
Now you install the image as recovery.
Click to expand...
Click to collapse
I think this was the first issue, but after I should also remove the "read only" from TWRP in order to keep it in the recovery.
nasosgr said:
I think this was the first issue, but after I should also remove the "read only" from TWRP in order to keep it in the recovery.
Click to expand...
Click to collapse
once you boot into twrp from abd. you must have flashable zip on external sd card then use twrp to flash the twrp zip then youll have twrp for recovery..
raptorddd said:
once you boot into twrp from abd. you must have flashable zip on external sd card then use twrp to flash the twrp zip then youll have twrp for recovery..
Click to expand...
Click to collapse
Not quite right. You can flash twrp image from twrp recovery. No need for a zip.
Jens1969 said:
Not quite right. You can flash twrp image from twrp recovery. No need for a zip.
Click to expand...
Click to collapse
It didnt worked fro me. i select img. and i got red error letters, then i flash it using zip and it worked.. i had both files on sd external card and on pc.

Help!! Full wiped LG G4

Hi. Im new to rooting and on the attempt to install lineageos, i got stock in full wipe.
First i unlocked my bootloader and then installed twrp. everything went well so far, but in twrp i made the mistake of doing a full wpe. now i dont know how to boot into custom recovery, if it even still exists on my phone. i also tried the lg flash tool, but i always get the connection to server error. would be really gratefull if someone would help me out. thxs
so... you don't tried enter to recovery via key-combo? (Vol Down+Power).
If you can enter to Download Mode, try to flash a KDZ with LGUP.
I can't flash kdz because lgup not recognized the device because i flashed a old marshmallow system on my lg4 with v30 port ..any help
fijuu said:
Hi. Im new to rooting and on the attempt to install lineageos, i got stock in full wipe.
First i unlocked my bootloader and then installed twrp. everything went well so far, but in twrp i made the mistake of doing a full wpe. now i dont know how to boot into custom recovery, if it even still exists on my phone. i also tried the lg flash tool, but i always get the connection to server error. would be really gratefull if someone would help me out. thxs
Click to expand...
Click to collapse
ebusuhejbi said:
I can't flash kdz because lgup not recognized the device because i flashed a old marshmallow system on my lg4 with v30 port ..any help
Click to expand...
Click to collapse
Try connecting to your phone in Android SDK/Platform Tools.
Type adb reboot recovery and see if it will boot into TWRP. If it works, you have choices to restore a backup or flash a new rom.
If it doesn't boot into TWRP, make sure your TWRP recovery.img is in the same folder and try re-installing by typing fastboot flash recovery TWRP.img (using the file name of your TWRP image).
solved
sdembiske said:
Try connecting to your phone in Android SDK/Platform Tools.
Type adb reboot recovery and see if it will boot into TWRP. If it works, you have choices to restore a backup or flash a new rom.
If it doesn't boot into TWRP, make sure your TWRP recovery.img is in the same folder and try re-installing by typing fastboot flash recovery TWRP.img (using the file name of your TWRP image).
Click to expand...
Click to collapse
Thanks a lot. i finally got it done with the lg bridge software.

S4 Mini Softbrick

First time flashing ROMs, installed resurrection remix tryed to install Gapps which failed, yet RR booted up on its own just fine. Then tried to flash a new recovery on it (TWRP 3.0) yet the phone would just never boot up to complete the recovery install. So now i have a phone which wont enter recovery mode and cannot complete the download of the new recovery.
TLDR: Phone wont boot into recovery as ROM is broken so download cant be fixed?
Previous: recovery TWRP 2.6
Phone: Samsung Galaxy S4 GT-19195
Any help would be really appreciated!
Thanks
Are you sure that you have flashed the right Recovery for your Phone.
Normally the way is.
Boot into Recovery
Install the Recovery .zip file
Reboot into Recovery.
Reboot into System ( ROM )
Can you post a link where you download the Recovery and which file.
bierma32 said:
Are you sure that you have flashed the right Recovery for your Phone.
Normally the way is.
Boot into Recovery
Install the Recovery .zip file
Reboot into Recovery.
Reboot into System ( ROM )
Can you post a link where you download the Recovery and which file.
Click to expand...
Click to collapse
That would only work from TWRP ver 2.8.4, I think you missed he is still on very old TWRP or maybe he edit later , he would have to install with Odin method
@Spec77
If you can boot into download mode you should be able to flash new recovery with Odin method (NOT use zip file).
As Bierma suggests maybe you flashed wrong TWRP does your phone have another letter and after gt-19195 if so it is a different phone & you need different TWRP. Or maybe you just tapped wrong link.
IronRoo said:
That would only work from TWRP ver 2.8.4, I think you missed he is still on very old TWRP or maybe he edit later , he would have to install with Odin method
@Spec77
If you can boot into download mode you should be able to flash new recovery with Odin method (NOT use zip file).
As Bierma suggests maybe you flashed wrong TWRP does your phone have another letter and after gt-19195 if so it is a different phone & you need different TWRP. Or maybe you just tapped wrong link.
Click to expand...
Click to collapse
This way works also if you come from a CWM or PhilzTouch Version.
If you come from TWRP =>2.8.4.0 than you can flash an *.IMG File ,but you can flash on all Versions a *.zip file.
Managed to fix the brick
Thanks for the help, I managed to fix it by installing TRWP 3.0 from ODIN, and now that i have that I'm fine
Thanks!

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