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I KNOW I SHOULD POST THIS IN MY NON-EXISTANT DEVICE FORUM,
but there is like no community there and I figured I would get a faster answer here.
I have an LG Mytouch Q C800 and I accidentally applied an OTA update with CWM installed. Since then I have been in a CWM bootloop, unable to boot into normal android. I dont think I can access fastboot or ADB. I have tried reflashing the stock ROM and everything. Can anyone help?
Yoyomah20 said:
I KNOW I SHOULD POST THIS IN MY NON-EXISTANT DEVICE FORUM,
but there is like no community there and I figured I would get a faster answer here.
I have an LG Mytouch Q C800 and I accidentally applied an OTA update with CWM installed. Since then I have been in a CWM bootloop, unable to boot into normal android. I dont think I can access fastboot or ADB. I have tried reflashing the stock ROM and everything. Can anyone help?
Click to expand...
Click to collapse
man the same thing happende to me, the only way i could partially recover my phone was flashing clockwork mod and from there install Cianogenmod 9, then in recovery mode conected to the pc via cable and typed:
"adb reboot bootloader"
once in Fastboot mode typed:
"fastboot boot boot.img"
where boot.img is the file contained in the cyanogenmod .zip file, doing this i managed to boot the rom and use my phone, the problem is that anytime it restarts it gets stuck in the boot loop again, and i have to repeat the process for it to boot again, i think is a bootloader problem since i have virtually done anything else, i think that the OTA update from tmobile changes something on the bootloader and it forces recovery/update boot always, and since the OTA never was completed it never got back to it's original state, its´s just my theory, i´m looking into it, but for now my phone works!.
Solution
I found a solution for the lg c800 bootloop, se my post: http://forum.xda-developers.com/showpost.php?p=39453347&postcount=10
Hi guys, after 10 hours of trying to get my P760 to life I finally, as a last resort, decided to open this threadh. Heres the deal, my friend gave me his P760 which was stuck at the boot logo, I firstly tried to fix it with LG mobile support tool but it got stuck at 15% after countless tries. Then I tried fixing it with Lg flash tool but it also gave me some errors "omap factory download fail lg p760". After that I couldnt access S/W mode anymore nor did the phone turn on, only black screen. When I connect it to my pc it just makes sounds of new device connected/disconnected. I tried this fastboot method http://forum.xda-developers.com/showthread.php?t=2292828 but couldnt make it work. Is the phone completely dead or is there anything more I can try? Any help is appreciated, thank you very much.
What was done to brick it in the first place?
Sent from my KYOCERA-C6745 using Tapatalk
I am not sure, my friend brought it to me and he didnt know the reason. Anyway I managed to get into fastboot on another computer and i tried to flash x loader and uboot with the bulit in options and i get the following error "FAILED (remote partition doesnt exist). What can I do next? Thank you for the reply.
EDIT I have tried to get the phone in S/W mode using this guide http://forum.xda-developers.com/showpost.php?p=44325657&postcount=4 but I couldnt do it.
I am sure I have to flash something in fastboot so it would be great if someone could point me to exactly what. Thanks again.
EDIT 2 I tried to flash xloader and u boot from post #7 http://forum.xda-developers.com/showthread.php?t=2242444 and it gave me the remote partition error failed again. Is the phone "officially" dead?
My experience with this phone is that it is basically unbrickable, at least software wise, thanks to omap4boot. Fastboot is basically telling you the partition you specified doesn't exist. Check you are using the correct syntax. It should be fastboot flash u-boot u-boot.img and fastboot flash x-loader x-loader.img (I am assuming the files are named u-boot.img and x-loader.img).
Another possibility is that the partition table of the phone somehow got corrupted. In my opinion this is very unlikely, but it could happen if the phone is disconnected while flashing the GTP table with LGFlashTool. Let's hope that's not the case.
Good luck.
@EdwinMoq thanks for the reply. I checked and I was using the correct syntax altough the files were named p1 and p2 both in bin format so I typed fastboot flash u-boot p1.bin and p2.bin respectively. Ive just noticed that they are from ICS and I am not sure what android version was installed prior to the brick. Can you point me where to find the JB files so I can try them if it makes any difference.
Maha23 said:
@EdwinMoq thanks for the reply. I checked and I was using the correct syntax altough the files were named p1 and p2 both in bin format so I typed fastboot flash u-boot p1.bin and p2.bin respectively. Ive just noticed that they are from ICS and I am not sure what android version was installed prior to the brick. Can you point me where to find the JB files so I can try them if it makes any difference.
Click to expand...
Click to collapse
I don't think the u and x boot version makes any difference. The fastboot script here comes with with the files for both p760 and p769. Or you can ask a p760 user with the jb boot to dump them and post it here.
EdwinMoq said:
I don't think the u and x boot version makes any difference. The fastboot script here comes with with the files for both p760 and p769. Or you can ask a p760 user with the jb boot to dump them and post it here.
Click to expand...
Click to collapse
Well using that script was the first thing I did after I couldn access S/W mode and I got the partition error, I tried both ICS and JB. Well it would be great if someone could dump their JB boot so I can try that, if it doesnt work I guess Ill throw the phone away
Maha23 said:
Well using that script was the first thing I did after I couldn access S/W mode and I got the partition error, I tried both ICS and JB. Well it would be great if someone could dump their JB boot so I can try that, if it doesnt work I guess Ill throw the phone away
Click to expand...
Click to collapse
I'm seeing you using lelus method to fastboot...
1) Be sure you are in fastboot whith this command: fastboot devices
2) if the l9 is still in lg logo, just flash a recovery img into boot and recovery partition:
a) fastboot flash boot recovery.img
b) fastboot flash recovery recovery.img3)reboot the device, it must enter in recovery mode by force.
4) once in recovery just flash a custom rom as you wish
Yes i am using lelus method and I see the device when I enter fastboot devices, the phone wont turn so there is no lg logo and I can not enter S/W mode. Where can I find the recovery.img and boot.img ?
EDIT Okay I tried this too http://forum.xda-developers.com/showthread.php?t=2585161 but when I issue the erase command it just gives me the remote partition error again. The chances that this is a hardware issue are pretty big.
Sent from my LG-D855 using XDA-Developers mobile app
A few tricks that might help:
-After a failed attempt to enter D/L mode via the volume key, force hard reset. Then switch on phone for an extra time and perform the hard reset again. This really makes a difference.
-If after unbricking the phone with a stock rom the puny LG recovery dialog resides on screen, perform the stock rom installation for a second time, phone should perform a normal boot then. Otherwise there's trouble with rooting and TWRP installation later.
-Fastboot still does not work for me(all?) in Win10, as it didn't in Win8.1,but did in Win7.
The only method to go on seems to root stock rom with Kango Root or a similar tool, then install Twrp, with Rashr or flashify.
lecorbusier said:
A few tricks that might help:
-After a failed attempt to enter D/L mode via the volume key, force hard reset. Then switch on phone for an extra time and perform the hard reset again. This really makes a difference.
-If after unbricking the phone with a stock rom the puny LG recovery dialog resides on screen, perform the stock rom installation for a second time, phone should perform a normal boot then. Otherwise there's trouble with rooting and TWRP installation later.
-Fastboot still does not work for me(all?) in Win10, as it didn't in Win8.1,but did in Win7.
The only method to go on seems to root stock rom with Kango Root or a similar tool, then install Twrp, with Rashr or flashify.
Click to expand...
Click to collapse
Thanks for the reply. How do I perform the force hard reset? Yes, I couldnt get fastboot to work on win 10, on win 7 it works flawlessly.
Sent from my LG-D855 using XDA-Developers mobile app
Hello,
I have exactly the same problem with my p760, fastboot works so far but remote partition error and the phone stays always completely black.
Is there someone who has a new idea to fix it?
Hey,
I found this: http://massimoronca.it/2016/03/17/fastboot-failed-remote-partition-does-not-exist.html
but i dont really understand it, can someone help me?
Maha23 said:
Yes i am using lelus method and I see the device when I enter fastboot devices, the phone wont turn so there is no lg logo and I can not enter S/W mode. Where can I find the recovery.img and boot.img ?
EDIT Okay I tried this too http://forum.xda-developers.com/showthread.php?t=2585161 but when I issue the erase command it just gives me the remote partition error again. The chances that this is a hardware issue are pretty big.
Sent from my LG-D855 using XDA-Developers mobile app
Click to expand...
Click to collapse
readme again... try to flash a recovery.img into the boot partition
fastboot flash boot recovery.img
and then reboot... this foce the l9 to enter in recovery and then you can fotmat partitions in wipe options
---------- Post added at 08:55 PM ---------- Previous post was at 08:52 PM ----------
Elsewhere you must need a technician with a box like octopus box to recompone ESD partitions of the L9 phone
Hard reset is 10s power.
Such a swap of recovery and kernel could have happened after unbricking the phone, when the key combo for fastboot produces the LG recovery. That's why I flash stock twice, then it's right again & ready to root, install TWRP etc.
Thanks for the help guys, I tried everything possible...I think I did, but the phone just wouldnt unbrick so it is going into parts. Thanks again.
Maha23 said:
Thanks for the help guys, I tried everything possible...I think I did, but the phone just wouldnt unbrick so it is going into parts. Thanks again.
Click to expand...
Click to collapse
you must need a technician with a box like octopus box to recompone ESD partitions of the L9 phone
puntoazul said:
fastboot flash boot recovery.img
Click to expand...
Click to collapse
Srsly?
recovery partition image on boot?
Probably true. That would explain the strange behaviour of the key combos during boot, after unbricking the phone for the first time. The recovery has replaced the kernel, but the phone can still boot. Strange. Fastboot is unavailable, and the key combo for the recovery shows the "dead droid" and performs a factory reset.
Groszexxx said:
Srsly?
recovery partition image on boot?
Click to expand...
Click to collapse
Yes... is an effective method to boot by forced on TWRP or other recovery and then proceed to format all partitions and flash any rom consecutively. After flashing any rom the boot partition is rewrited by the boot.img of the rom.
I did this before on my own L9 for repair and other friends devices. Is totally safe
By the way, I'm not in warn
I'm trying to flash my stock recovery to recover from a bootloop, but for some reason none of the commands I try seem to work. fastboot devices shows my device info, and fastboot reboot reboots the phone. Those would indicate that fastboot is working, but when I try fastboot boot recovery.img terminal shows downloading 'boot.img' . . . and just hangs. Same thing when I try fastboot flash recovery recovery.img, terminal says sending recovery and just hangs. I'm not sure why this is happening. I'm new to tinkering with Android and am pretty out of my depth here, though I am learning. I think this may be happening because the bootloader is still locked (?) and that is preventing any changes to the recovery partition, but that's just a guess. The phone is rooted, but I don't know if the bootloader is unlocked or not. I've tried to find out using fastboot commands, but big surprise, they just hang too.
I have the proper drivers installed, phone is in fastboot mode, USB is plugged into the back of my PC, and i'm using the latest version of fastboot. I'm just not sure what i'm missing here. Has anyone else experienced something similar or can at least guide me in the right direction? Thanks.
Thanks for the reply. Yes this about the @#[email protected] Coolpad. To answer your questions, trying fastboot oem device-info returns "failed (command write failed (no error))". Unfortunately, finding a full stock ROM for this device has proven to be impossible. I've been searching for weeks without luck. Coolpad is a little known brand outside of China it seems. Even going to Yulong's website (Coolpads manufacturer) and relying on google translate to slog through all the Chinese text i've found no mention of this particular phone. Plenty of other Coolpad models, just not this one. And apparently Coolpad Quattro is the same in chinese as it is in english so I know I didn't miss anything because of translation.
Without a stock ROM to use, and with my stock recovery being overwritten it seems like the recovery.img that Flashify created is all I have to work with. As for your last question, i'm not sure what kitchen it is. The download was linked from a Youtube video about porting custom recoveries. It seems to be just a series of BAT files (unpackimg, repacking, and cleanup).
Hello! This is my first thread on the forum;
I'm writing because I think I soft bricked my Xiaomi Mi Pad 4 LTE, let me explain from the very beginning.
It's a brand new device, bought today, and with a custom italian ROM which was sold with.
I just wanted to root it, and the bootloader was already unlocked because it was a custom ROM, so I tried to install TWRP (mocha version for Mi Pad) with Fastboot and then I wanted to install Magisk.
The issue is that, when I tried to flash TWRP to recovery with fastboot flash recovery twrp.img, it all went "OK" but then TWRP was not actually flashed and couldn't boot it with key combinations, it just looked like it wasn't there. I also tried to boot it without flashing, with fastboot boot twrp.img but it gave me
"Failed to load/authenticate boot image: 00000050" error
Looking on the web, I found someone who told to try fastboot flash boot twrp.img and so, without even thinking, I did it.
That's the main issue. I rebooted, and found that TWRP started, but now I couldn't boot my device anymore, because the default boot.img file was replaced by twrp.img. So, practically, TWRP replaced my device's default system (I think?).
Then, I tried to find a stock firmware for Mi Pad 4 (Clover) on the web, and I found it, so I flashed the stock firmware boot.img, fastboot flash boot boot.img, but when I rebooted, the device was stuck in the loading screen with three dots loading over a "Powered by Android" logo. I waited 20 minutes, nothing, it looks stuck, so this stock boot.img doesn't seem to work.
I can actually flash TWRP and that stock boot image both whenever I want and switch between them; the first works, the latter doesn't.
So, in poor words: I flashed twrp.img as boot.img and now I can't boot normally, but TWRP starts when turning on my device.
But I just want to get my default boot.img or system, or any other way to reaccess to my device. That's fine even if I have to hard reset or wipe everything, it's fine even if I am going to lose data, but please, just help me.
Can someone help me? I'm just a newbie in this world, please help me unbricking my device.
Thanks in advance.
Try installing twrp again and boot to it
Download custom rom.of your choice ( im using hovac and it been great for a year now )
Move it to your mipad via comouter
Format everything in twrp and install the rom and gapps
--- I just remembered havin same issue u having and if im not mistaking : u should reboot to recovery right after installing twrp ( you dont reboot to system )
Im not really sure about it cause it happened long time ago
@DanielVipx
Sorry, seems you tried that already. Did you try the mi flash tool?
This might help:
https://osdn.net/projects/xiaomifirmwareupdater/storage/Stable/V10/clover/
I recently bought an unlocked Moto G Play 2021 with the intent of learning how to flash custom rom's etc. The steps I've done so far are below.
Went to Motorola's site and got the code to unlock the bootloader
Waited for the "OEM Unlock" button to be available in the Developer Options menu.
Followed the directions Here to try to get an unofficial version of TWRP installed.
when I type fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img Using the vbmeta.img from the link above, I get some kind of anti-rollback error and can't boot to recovery.img
So far, what I've found says I need to be on Android 10 for this to work but I can't find a stock rom of Android 10 for this device. Electimon posts AOSP builds for this phone Here so I assume there's a way to get this to work, I just don't know what it is and I've gone through these threads a few times now and can't piece it together. Any assistance would be greatly appreciated.
Additionally, thanks Electimon for doing those AOSP builds.
Try to download Miracle Thunder Modified (Withouth Box) like there are other tools, but if not, just try to root. kind of for you to root, download the TWRP app and install or use Flashify to flash img using root
Luiz Vinicius said:
Try to download Miracle Thunder Modified (Withouth Box) like there are other tools, but if not, just try to root. kind of for you to root, download the TWRP app and install or use Flashify to flash img using root
Click to expand...
Click to collapse
I'm not sure entirely what happened, but after I used the TWRP app my phone bricked and I had to use the Lenovo rescue app on my pc to factory reset it.
First update your phone
Then download twrp from
https://forum.xda-developers.com/t/...st-port-but-everything-works-amazing.4330775/
Then adb reboot bootloader
Then fastboot flash recovery MotoGuamnaFixed2.img
then you have twrp installed then you can go thru the steps at
https://forum.xda-developers.com/t/rom-12-0-guamna-aosp-12-0-monthly-builds.4392303/#post-86610039
to get Android 12 couatom rom
svoc said:
First update your phone
Then download twrp from
https://forum.xda-developers.com/t/...st-port-but-everything-works-amazing.4330775/
Then adb reboot bootloader
Then fastboot flash recovery MotoGuamnaFixed2.img
then you have twrp installed then you can go thru the steps at
https://forum.xda-developers.com/t/rom-12-0-guamna-aosp-12-0-monthly-builds.4392303/#post-86610039
to get Android 12 couatom rom
Click to expand...
Click to collapse
Thank you for the response!
I made sure my phone was on wi-fi and checked for updates. I then rebooted to fastboot and flashed recovery to the MotoGuamnaFixed2.img. I still got a blank screen when I tried to reboot to recovery. I then rebooted to fastboot manually and did
fastboot flash recovery_a MotoGuamnaFixed2.img
fastboot flash recovery_b MotoGuamnaFixed2.img
It said ok both times, and when I try to reboot to recovery, I get a blank screen that I can't interact with. Pressing the power and volume buttons does nothing. Rebooting and letting the phone go through the boot process, to include waiting for the warning about the unlocked bootloader to go away results in a blank screen.
I also tried booting to fastboot and selecting "Recovery Mode" from the fastboot menu. Same result. That being said, I followed the instructions in the second link anyway, which are
fastboot -w
fastboot update (filename).zip
Now my phone has a blank screen I cannot interact with, but when I type "adb devices" I see the phone. Typing "adb shell ls -l" shows there is definitely a file structure there.
Just download the rom for the version that your device is unzip it and manual flash each one to the correct spot except recovery flash the twrp and then reboot and let me know look at flash file.xml to see where to flash each IMG and bin to make shur you download your rom and not another one for the same device but different carrier what it sounds like to me is happening is you downloaded the wrong ROM when you tried to do a force update
Send me a screenshot of your about device screen please I might need to make a change to a few things to get it working
I'm stuck in a boot loop right now. WIll the output from fastboot getvar work?
What carrier do you have
Download your rom first then follow my last post to get it back out of a bootloop
svoc said:
What carrier do you have
Click to expand...
Click to collapse
It's an unlocked phone, no carrier, no SIM. I did the factory reset with the Lenovo rescue tool and sent you the screen shot of the device info page.
Update - svoc has spent a crap ton of his personal time trying to help me with this. I've learned a bunch and wanted to publicly acknowledge his willingness to go way above and beyond trying to get this working.
I don't understand why I can't get twrp to boot I'm not for shut what the problem is if any one has any idea please let me and I will try
Big thanks to svoc for all the phone calls and troubleshooting my device, that is apparently possessed by at least 3 demons and a donkey. There are two links below. The first is the link to the intstructions that worked.
The second is to the compressed file that gave me a degoogled android. It's really, really basic and you'll have to side load the app store of your choice onto the device but it works.
*NOTE* I have not used a sim card or tested the cellular capability. If you do the things below and it doesn't work, reboot to bootloader and flash the radio.img with the one from your stock rom, which can be obtained from lolinet.
Any custom ROMs out there for Moto g play 2021 (guamna)?
Can't find any custom ROMs for this device. I guess it is too early. I'll probably have to get another phone. Can't even find a twrp for it. New to this. Any suggestions?
forum.xda-developers.com
https://github.com/phhusson/treble_experimentations/releases/download/v412/system-squeak-arm64-ab-vanilla.img.xz