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I have an HTC One M9 that's rooted with the CM 13 based on 6.0.1, and I have TWRP Recovery installed. I wanted to unroot my phone and install the stock ROM to my phone because I have some physical problems with the phone and some software problems that aren't related to the root or CM 13. I followed a guide that said to get ADB and Fastboot on my computer so I did that (AT this point I had already gone to TWRP and wiped the device including the OS) and then it said to get the stock ROM. I tried to look for the stock ROM and I found a few so I tried one. It said to flash it by using commands on ADB to flash it. I did all of the commands it asked and when it came to typing "fastboot flash recovery (file name here)" it said waiting for device and didn't ever change. I tried putting the zip file onto my device and then lashing it using install on TWRP and it failed then automatically restarted the phone with no OS so it was bricked. I waited for the battery to die and then booted the phone into recovery mode. This is currently where I'm at. I live in Canada and use Bell so I can't find the stock ROM on the Official HTC website, or anywhere else for that matter. I would like to use my phone so any help would be appreciated. Thanks!
Hello members of XDA,
The issue I'm having is pretty rare and found few or non threads about it, so I will try to be the most precise possible.
Yesterday I decided to change the ROM of my LG G4 H815, I was previously on LineageOS, since LineageOS on H815 wasn't developped anymore. So I asked myself why not trying Android Oreo with CypherOS. Before any changes I was with the latest version of LineageOS for H815 and I had TWRP with the version 3.0.2.1. Bootloader was obviously unlocked.
So I starded to download all the required material to switch to CypherOS 5.3.1, while the download I've made a backup of my actual lineageOS installation on my internal storage. Once every thing was downloaded I tried to install CypherOS I had an error 7 in TWRP install box, so I was pretty worried, scouted XDA threads about the error but i was redirected to the solution where you modify the update binary with txt but still didnt worked. I've found a thread talking about updating firmware of the H815 ( https://forum.xda-developers.com/g4/development/v5-8-5-n7-1-2-resurrection-remix-t3704450) While panicking I've done a wipe of everything (dalvik, data,cache and system) .I applied thge firmware update but I also re-read the thread of CypherOS and figured that I needed a newer version of TWRP, installed it so. THen magically CypherOS installed without any issue.
After installing the Gapps (Arm64 8.1 Nano) I rebooted and the first weird thing appears, after seeing the LG screen while the boot I have another screen telling me that the bootloader has been locked and that i should visit g.co/ABH for more information, then CypherOS initialise, CypherOS worked like a charm. So I wanted to go to my TWRP and make a backup in case. I launched ADB and use the command adb reboot recovery, the phone restarted and had the following events : LG logo, warning message about the bootloader, LG logo again and then a black screen. However I was in recovery mode since adb found me with the command fastboot devices. I had no TWRP logo or anything linked to it. Few minutes later, I had the basic recovery mode where you move yourself with the volume buttons and select with power where the functions are pretty limited.
Then I rebooted the phone with adb (fastboot reboot), CypherOS still working perfectly. Thaught that it was the bootloader which back to scratch when he was blocked, I figured out that he was still unlocked, I used the command "fastboot getvar unlocked" through ADB. THen I thaught i had to install back TWRP, tried through the fastboot mode but I had an error
Code:
FAILED (remote: unkown command)
since i tried everything i could even in the basic recovery mode, the only working command in the recovery is "fastboot flash recovery twrp.img" but still does nothing.
I mean it's not that terrible since I can use my phone and i'm about to change phone in 2 months for a Oneplus but i would really like to be able to install magisk on the phone to grant root access and be able to use TWRP on it like I used to. By the way the backup of lineageOS has been deleted while performing unecessary wipes.
Bennou said:
Hello members of XDA,
The issue I'm having is pretty rare and found few or non threads about it, so I will try to be the most precise possible.
Yesterday I decided to change the ROM of my LG G4 H815, I was previously on LineageOS, since LineageOS on H815 wasn't developped anymore. So I asked myself why not trying Android Oreo with CypherOS. Before any changes I was with the latest version of LineageOS for H815 and I had TWRP with the version 3.0.2.1. Bootloader was obviously unlocked.
So I starded to download all the required material to switch to CypherOS 5.3.1, while the download I've made a backup of my actual lineageOS installation on my internal storage. Once every thing was downloaded I tried to install CypherOS I had an error 7 in TWRP install box, so I was pretty worried, scouted XDA threads about the error but i was redirected to the solution where you modify the update binary with txt but still didnt worked. I've found a thread talking about updating firmware of the H815 ( https://forum.xda-developers.com/g4/development/v5-8-5-n7-1-2-resurrection-remix-t3704450) While panicking I've done a wipe of everything (dalvik, data,cache and system) .I applied thge firmware update but I also re-read the thread of CypherOS and figured that I needed a newer version of TWRP, installed it so. THen magically CypherOS installed without any issue.
After installing the Gapps (Arm64 8.1 Nano) I rebooted and the first weird thing appears, after seeing the LG screen while the boot I have another screen telling me that the bootloader has been locked and that i should visit g.co/ABH for more information, then CypherOS initialise, CypherOS worked like a charm. So I wanted to go to my TWRP and make a backup in case. I launched ADB and use the command adb reboot recovery, the phone restarted and had the following events : LG logo, warning message about the bootloader, LG logo again and then a black screen. However I was in recovery mode since adb found me with the command fastboot devices. I had no TWRP logo or anything linked to it. Few minutes later, I had the basic recovery mode where you move yourself with the volume buttons and select with power where the functions are pretty limited.
Then I rebooted the phone with adb (fastboot reboot), CypherOS still working perfectly. Thaught that it was the bootloader which back to scratch when he was blocked, I figured out that he was still unlocked, I used the command "fastboot getvar unlocked" through ADB. THen I thaught i had to install back TWRP, tried through the fastboot mode but I had an error since i tried everything i could even in the basic recovery mode, the only working command in the recovery is "fastboot flash recovery twrp.img" but still does nothing.
I mean it's not that terrible since I can use my phone and i'm about to change phone in 2 months for a Oneplus but i would really like to be able to install magisk on the phone to grant root access and be able to use TWRP on it like I used to. By the way the backup of lineageOS has been deleted while performing unecessary wipes.
Click to expand...
Click to collapse
It's clearly written on the official website and in the official TWRP support thread for the g4 what you have to do when on Nougat bootloader and want to flash TWRP... and keeping it.
Sent from my LG-H815 using XDA Labs
Yet, this still doesnt help me to solve my issue. Do you think there is a way to fix it or no ? If not, I'll just deal with it for the few months lasting.
Bennou said:
Yet, this still doesnt help me to solve my issue. Do you think there is a way to fix it or no ? If not, I'll just deal with it for the few months lasting.
Click to expand...
Click to collapse
Okay if it doesn't work for you you must do something wrong. It works 100%. If you really want help you should explain in detail exactly which steps you took as otherwise it's all just guessing what you're doing.
Sent from my LG-H815 using XDA Labs
Indeed, I didn't followed the procedure exactly, didn't do the step after flashing TWRP (removing battery and boot manually to recovery). Well thank you, was my bad on that.
Should I do a clean new install of cypheros or should I keep it like that, what would be your advice ? Knowing that at the moment CypherOS works like a charm. I also plan to install Magisk on it to root it.
To help others newbie like me, solution can be found here : https://forum.xda-developers.com/g4/development/recovery-twrp-3-touch-recovery-t3442424
Hey all; first post and 100% green with rooting. This is my first attempt and i'm hitting a stumbling block.
First off, I've been using the guide on "theandroidsoul"(can't post a link due to post count, but a quick google search should bring you to the exact one)
I have successfully setup ADB, unlocked the bootloader, flashed TWRP 3.2.3-1 and have been able to boot into it using ADB.
However on step 10 of the guide i'm using, it's not too clear if i should skip formatting the device memory or go ahead and do it. I did it. I suspect this might be where i went wrong.
Regardless, i'm able to move Magisk onto the internal storage and TWRP is able to install it successfully.
Once i try to reboot, the "bootloader unlocked" warning screen shows, then the oneplus boot screen appears. It shuts down and reboots like this a second time, then the screen goes black and the front LED illuminates white and nothing happens. I can shut down the phone by holding the power button, then boot into fastboot manual using power + volume up. However if i try to boot the phone normally or boot into recovery mode, it repeats the same symptoms.
I'm unaware if I've soft or hard bricked the device. Like i mentioned i'm able to boot it into fastboot just fine and can get TWRP to come up with a boot command via ADB. But no matter how many times i try to install Magisk(I tried both v18 the guide mentions and the latest v19 from their site) i can't get it to boot.
I'm aware i also used an outdated version of TWRP(the one the guide mentions). i tried to flash twrp-3.3.0-1(latest version for dumpling) but cannot. I believe because a version of TWRP is already flashed on the device?
Can anyone help me out?
Hi all,
I'm facing the same issues as Josh and came seeking help, as well, so any help would be greatly appreciated! This is my first foray into Android coming from Windows 10 Mobile, which I'm still using two weeks after purchasing the 5T because of these issues. No matter what I do, I cannot get it to work and am now stuck in the same loop as mentioned above.
I'm attempting to install LineageOS and followed the instructions on its official site to a T, but have never been able to get it to boot into the OS. The only difference from the original poster's issue is that I'm not trying to root the device.
Thanks again for any help!
Josh Hex said:
....
I'm unaware if I've soft or hard bricked the device. Like i mentioned i'm able to boot it into fastboot just fine and can get TWRP to come up with a boot command via ADB.
....
i tried to flash twrp-3.3.0-1(latest version for dumpling) but cannot. I believe because a version of TWRP is already flashed on the device?
Can anyone help me out?
Click to expand...
Click to collapse
Hi, on my search how to flash TWRP revovery ROM I stumbled upon your post. With my first attempts, I did not even manage to get the official TWRP to run on my op5T - got always blue led - basically the same symptoms without trying to root. Meanwhile LOS works fine on my OP5T (I updated to the latest OOS then flashed and booted twrp-3.3.0-0-20190427-codeworkx-dumpling.img.).
ANYWAY my solution to unbrick and reinstall OxygenOS again was the...
... official unbrick tool - can be found in this forum when searching after (still cannot post links): OnePlus 5T Unbricking Tool
There is also another page here on the forum collecting different unbricking tools - although I am not aware how they are - since I used another source by googling for "How to Unbrick OnePlus 5T with OnePlus 5T Unbrick Tool (Unroot/Fix bootloop)".
Hope you get it running again, like I did.
Amix73 said:
Hi, on my search how to flash TWRP revovery ROM I stumbled upon your post. With my first attempts, I did not even manage to get the official TWRP to run on my op5T - got always blue led - basically the same symptoms without trying to root. Meanwhile LOS works fine on my OP5T (I updated to the latest OOS then flashed and booted twrp-3.3.0-0-20190427-codeworkx-dumpling.img.).
ANYWAY my solution to unbrick and reinstall OxygenOS again was the...
... official unbrick tool - can be found in this forum when searching after (still cannot post links): OnePlus 5T Unbricking Tool
There is also another page here on the forum collecting different unbricking tools - although I am not aware how they are - since I used another source by googling for "How to Unbrick OnePlus 5T with OnePlus 5T Unbrick Tool (Unroot/Fix bootloop)".
Hope you get it running again, like I did.
Click to expand...
Click to collapse
Thank you. I'll give it a shot and will let you guys know how it works out!
Just this day, November 23, 2021, I have been trying to flash a custom rom named Syberia OS for daisy(Mi A2 Lite variant). As I have done booting up the device to fastboot(thru cmd command since my power button is jammed), I installed the twrp after booting the image to the device, making it as my recovery.
Now I am set and excited to install the rom, so I went to fastboot again and tried to flash the rom, but it always errors and not installing the rom. It is said "to flash multiple zips, reboot recovery before..." (correct me if I'm wrong), so I rebooted to recovery thru the twrp (since its in fastboot). Now, I did the same, I installed the rom again and experienced the same error so I dont know what to do, I did wiped system, data, dalvik and internal storage (a lot of times and tried to install the rom again), but I get the same error.
Then since I cant install the rom, I went to reboot to system thru twrp, and then I forgot, that I have no OS installed.
So now I'm stuck with the "Your device software can't be checked for corruption. Please lock the bootloader. Please visit this link..." plus arriving to the AndroidOne logo, and it turns off and turns on again with the message and logo, repeats until the battery is completely empty.
Is there anything I could do to go to fastboot again for a clean install of the stock rom? (I promise to not unlock the bootloader and experiment on custom roms again)
(I am sorry if you find it hard to understand, I am willing to edit this thread for better understanding if there are things you dont understand.)
This is what I see after all that happened...:
Your browser is not able to display this video.
Any form of response and acknowledgements will be much appreciated )
@hachi_eight
Please read the guidances that are stuck on top of every forum prior to your next posting like
Note: Questions go in Q&A Forum
If you are posting a Question Thread post it in the Q&A forum. Technical discussion of Android development and hacking. No noobs, please. Device-specific releases should go under the appropriate device forum...
forum.xda-developers.com
I've moved the thread to Q&A.
Regards
Oswald Boelcke
Senior Moderator
hachi_eight said:
Just this day, November 23, 2021, I have been trying to flash a custom rom named Syberia OS for daisy(Mi A2 Lite variant). As I have done booting up the device to fastboot(thru cmd command since my power button is jammed), I installed the twrp after booting the image to the device, making it as my recovery.
Now I am set and excited to install the rom, so I went to fastboot again and tried to flash the rom, but it always errors and not installing the rom. It is said "to flash multiple zips, reboot recovery before..." (correct me if I'm wrong), so I rebooted to recovery thru the twrp (since its in fastboot). Now, I did the same, I installed the rom again and experienced the same error so I dont know what to do, I did wiped system, data, dalvik and internal storage (a lot of times and tried to install the rom again), but I get the same error.
Then since I cant install the rom, I went to reboot to system thru twrp, and then I forgot, that I have no OS installed.
So now I'm stuck with the "Your device software can't be checked for corruption. Please lock the bootloader. Please visit this link..." plus arriving to the AndroidOne logo, and it turns off and turns on again with the message and logo, repeats until the battery is completely empty.
Is there anything I could do to go to fastboot again for a clean install of the stock rom? (I promise to not unlock the bootloader and experiment on custom roms again)
(I am sorry if you find it hard to understand, I am willing to edit this thread for better understanding if there are things you dont understand.)
This is what I see after all that happened...:
View attachment 5466081
Any form of response and acknowledgements will be much appreciated )
Click to expand...
Click to collapse
Hey brother, I had the same situation a few months ago. My device - Redmi 6 (Cereus).
So, I was trying to install TWRP in Redmi 6 and then after trying many times TWRP successfully got installed. But when I tried to boot the device, It stuck in bootloop (Going to fastboot and again booting...). So, the answer is that you first boot into fastboot mode of your device and then download the fastboot Rom of your device, (link of fastboot rom of your device - https://xiaomifirmware.com/download/18010/ ) . Then go to your PC and then extrac
the fastboot file, then connect your phone to pc and go to fastboot mode then open the extracted folder and then click on flash-all (The batch file) and then a new command window will open automatically and flashing process will start. After it's done your phone will reboot automatically. For reference, go ahead. Best of luck!
hachi_eight said:
Just this day, November 23, 2021, I have been trying to flash a custom rom named Syberia OS for daisy(Mi A2 Lite variant). As I have done booting up the device to fastboot(thru cmd command since my power button is jammed), I installed the twrp after booting the image to the device, making it as my recovery.
Now I am set and excited to install the rom, so I went to fastboot again and tried to flash the rom, but it always errors and not installing the rom. It is said "to flash multiple zips, reboot recovery before..." (correct me if I'm wrong), so I rebooted to recovery thru the twrp (since its in fastboot). Now, I did the same, I installed the rom again and experienced the same error so I dont know what to do, I did wiped system, data, dalvik and internal storage (a lot of times and tried to install the rom again), but I get the same error.
Then since I cant install the rom, I went to reboot to system thru twrp, and then I forgot, that I have no OS installed.
So now I'm stuck with the "Your device software can't be checked for corruption. Please lock the bootloader. Please visit this link..." plus arriving to the AndroidOne logo, and it turns off and turns on again with the message and logo, repeats until the battery is completely empty.
Is there anything I could do to go to fastboot again for a clean install of the stock rom? (I promise to not unlock the bootloader and experiment on custom roms again)
(I am sorry if you find it hard to understand, I am willing to edit this thread for better understanding if there are things you dont understand.)
This is what I see after all that happened...:
View attachment 5466081
Any form of response and acknowledgements will be much appreciated )
Click to expand...
Click to collapse
Check in the guides section for mi a2 lite. Do a little search before asking. This one
user-001 said:
Check in the guides section for mi a2 lite. Do a little search before asking. This one
Click to expand...
Click to collapse
i fixed it, i opened the back of the phone and managed to fix the power button, and used the combo to get to fastboot mode, and reinstalled the stock OS. so, now I fixed it!
hachi_eight said:
i fixed it, i opened the back of the phone and managed to fix the power button, and used the combo to get to fastboot mode, and reinstalled the stock OS. so, now I fixed it!
Click to expand...
Click to collapse
I am having same issue. What did you do fix the power button?
Hi, I have Moto G7 Power xt1955-4 with Android 10 Q, unlocked for any GSM carrier, used on T-Mobile network. I unlocked the bootloader and i'm trying to install TWRP recovery image into it. Mostly I follow this guide https://www.androidinfotech.com/root-moto-g7-power-ocean-android-10 . I got the latest available for my phone TWRP -3.5.2-10-ocean from https://dl.twrp.me/ocean/twrp-3.5.2_10-0-ocean.img.html, switched my phone into fastboot mode so it's visible to 'fastboot devices" command, then i run "fastboot boot twrp-3.5.2_10-0-ocean.img" Phone reboots to temporary TWRP now, shows "Enter password for User [0] - ... Data successfully decrypted".
Now, when I try to permanently install TWRP, I got a problem, even though everything looks ok, no error messages: first I installed Disable_Dm-Verity_ForceEncrypt.zip file, with Success. Then I installed twrp-installer-3.5.2_10-0-ocean.zip via TWRP itself: it shows "######## TWRP installer for A/B devices ######## Running image patcher on boot_a... Running image patcher on boot_b... Image patcher complete! Done installing TWRP ***Note: You are now unrooted!*** Updating partition details... Success!" - note no errors here.
BUT when I reboot into recovery mode again, I see only TWRP logo, then phone beeps for 1 sec, and nothing happens after that, no menu shows up, no prompt to "Enter password for user" as before. No response from screen touches. Only reboot helps.
So I understand that TWRP was not installed correctly. What did I do wrong?
Any suggestions will be appreciated.
You should join and follow the G7P (Ocean) telegram group if you haven't already done so. Any questions can be asked there or are already answered in the #notes section. As far as twrp goes because the device is a/b type I never install the zip. I connect to pc and fast boot twrp image to flash ROMs.
Skippy12359 said:
You should join and follow the G7P (Ocean) telegram group if you haven't already done so. Any questions can be asked there or are already answered in the #notes section. As far as twrp goes because the device is a/b type I never install the zip. I connect to pc and fast boot twrp image to flash ROMs.
Click to expand...
Click to collapse
Thank you Skippy12359, I found just "Moto G7 Power Ocean/River Channel" on Telegram, with 10 subscribers - is it the one you mentioned?
My goal is to install Magisk-v23 on my phone, to complete rooting procedure. I was going to use TWRP for this, and install it via zip file. But if I use temporary TWRP and just install Magisk-v23.0_renamed_apk.zip, after reboot Magisk app shows "Installed" status as N/A! Apparently it doesn't work as intended... So I thought that permanently installed TWRP would give better result.
UPD: Also I see "Moto G⁷ Power | Builds™" channel with 445 subscribers, and "Moto G⁷ Power | Discussion™" with 379 members. Signed up for those!
There's a Moto g7 power discussion group and a Moto g7 power builds group. If you're new to flashing ROMs put all your ROMs, magisk, gapp files on your sdcard. Then fastboot twrp and flash ROMs, magisk from there. You can install the twrp zip if you want just found it easier not to because it gets overwritten anyway because the device has no separate partition for recovery like an A- only has for example.
Actually this method (fastboot to temporary TWRP, then install magisk.zip file from sd card) works! I was able to install Magisk this way, and first time it boots normally, Magisk shows Install status v23, CheckRoot app shows that everything is ok. But on second reboot i'm getting into bootloop After Warning message and 5 sec wait my phone beeps and reboots.
Magisk has an uninstall zip file if you have boot problems. Once magisk is uninstalled from recovery it should boot up fine. There is also a magisk canary version on github which should fix any boot issues after flashing. You need both the magisk zip and the magisk app installed to have full root
I try Magisk-Canary (after uninstalling Magisk v23 by renaming zip file to uninstall.zip and run it via TWRP) from https://github.com/topjohnwu/Magisk, the result is the same- first boot is Ok, Magisk app shows that it's installed (Magisk status 5d6d2417 (23015) version installed), but second boot gives me bootloop...
What ROM are you using?
I use Original stock ROM, that comes with the phone. XT1955-4_OCEAN_RETEU_10_QPOS30.52-29-7-6_cid50_subsidy-DEFAULT_regulatory-DEFAULT_CFC.xml.zip file from ttps://mirrors.lolinet.com/firmware/moto/ocean/official/RETEU ( i just found it to get boot.img and patch it with Magisk, I didn't change original firmware , just unlocked bootloader.
I haven't used stock for over a year and I don't recall having any problems rooting or ever had a boot loop on rooted stock Q. Also I've never needed to patch a boot image to get root. I just reflashed stock firmware, installed all the apps I wanted and fast boot to recovery. Flash copy partitions zip and then flash Magisk. After reboot to system I install Magisk app and I'm done. Always worked for me. Rooted and no reboots.
I assume that you have Moto xt1955-4, correct? Which ROM you have installed then? At the time of Magisk installation , was it custom ROM or original stock ROM on your phone?
I have the usa model of the same phone xt1955-5 and have always had it rooted whatever custom ROM or stock firmware used at the time. I'm currently on AICP 11 official custom ROM but switch frequently from Arrow, Colt and other ROMs.
Skippy12359 said:
I have the usa model of the same phone xt1955-5 and have always had it rooted whatever custom ROM or stock firmware used at the time. I'm currently on AICP 11 official custom ROM but switch frequently from Arrow, Colt and other ROMs.
Click to expand...
Click to collapse
Hey Skippy, When I originally got the phone, I bought it outright from Cricket. A Supra, but still the same as G7 Power.. No payments. No years agreements. Now that it is no longer supported, I want to unlock the bootloader and install a custom rom. Setup ADB and went to Motorola's website for the unlock code. I get "Does not qualify for unlocking." For the above two reasons, I'm a bit miffed. Has anyone found a work-a-round for this? I got up at 6 AM. All day studying and learning how to do this. Only to get the message. "No you can't. Sorry. Notta". And with Motorola's piss poor support policy, it grinds my gears.
Danny3568 said:
Hey Skippy, When I originally got the phone, I bought it outright from Cricket. A Supra, but still the same as G7 Power.. No payments. No years agreements. Now that it is no longer supported, I want to unlock the bootloader and install a custom rom. Setup ADB and went to Motorola's website for the unlock code. I get "Does not qualify for unlocking." For the above two reasons, I'm a bit miffed. Has anyone found a work-a-round for this? I got up at 6 AM. All day studying and learning how to do this. Only to get the message. "No you can't. Sorry. Notta". And with Motorola's piss poor support policy, it grinds my gears.
Click to expand...
Click to collapse
I have the TMobile variant codenamed Ocean, so I'm not going to be much help on your question. I suggest you ask in the Moto g7 power discussion group on telegram. I'm sure someone there can let you know if the cricket variant is unlockable or not. Good luck
Skippy12359 said:
I have the TMobile variant codenamed Ocean, so I'm not going to be much help on your question. I suggest you ask in the Moto g7 power discussion group on telegram. I'm sure someone there can let you know if the cricket variant is unlockable or not. Good luck
Click to expand...
Click to collapse
Thanks for the quick response! I don't use Telegram, but I guess I better get signed up. I wish there was a repository of, an HCL of sorts, where people can refer to before buying phones to avoid these issues.