Develop Bugs

Twrp and flashing a Rom

So I've done a lot of reading and there are multiple threads with steps that aren't exactly clear or contradict each other or are outdated. I just want clarification on what I believe are the steps to flash a custom rom (7.1.2 since I can wait for 8) on a brand new Pixel XL.
Setup phone to the point of enabling adb debugging and oem unlock
Fastboot unlock
Fastboot boot twrp RC1 img
Flash twrp RC2 zip in twrp
Reboot to installed twrp
Wipe system, data, caches
Flash ROM
Flash twrp again
Reboot to twrp
Flash gapps and root method (magisk working for 7.1.2 or should I be using supersu? Also which versions?)
Flash twrp again??
Boot to ROM then setup and use like normal
Should this give me custom ROM, root and twrp that I can boot directly to without a pc again? As long as I do twrp flashing after a ROM each time it'll stick? Also, I keep seeing things for setting a pin before initial twrp boot but without spending 4 days reading I can't find the reason for it. Should I be flashing vendor, bootloader and radio for the latest Nougat release BEFORE unlocking or can I do it through fastboot prior to unlocking?
Coming from Nexus 6P and that was my first run in with the bootloader, radio and vendors so I want to avoid issues for myself. Phone should be here tomorrow and want to get down to business right away lol.
Any and all information is greatly appreciated. If all of this is answered in a centralized area please point me to it and tell me I'm stupid for missing it.
Sent from my SM-N910P using Tapatalk
Found this over in PN thread. Is it accurate? Seems similar to my process.
https://forum.xda-developers.com/showthread.php?p=73846565

wgrant said:
Fastboot boot twrp RC1 img
Flash twrp RC2 zip in twrp
Reboot to installed twrp
Wipe system, data, caches
Flash ROM
Flash twrp again
Reboot to twrp
Flash gapps and root method (magisk working for 7.1.2 or should I be using supersu? Also which versions?)
Flash twrp again??
Boot to ROM then setup and use like normal
https://forum.xda-developers.com/showthread.php?p=73846565
Click to expand...
Click to collapse
Assuming the bootloader is already unlocked and disregarding the unlocking instruction, these instructions are dead on accurate. I personally dont use magisk, but maybe another user will chime in. For 7.1.2 id use supersu 2.82.
You dont have to flash twrp again after flashing gapps and supersu, but its a good practice to have.

noidea24 said:
Assuming the bootloader is already unlocked and disregarding the unlocking instruction, these instructions are dead on accurate. I personally dont use magisk, but maybe another user will chime in. For 7.1.2 id use supersu 2.82.
You dont have to flash twrp again after flashing gapps and supersu, but its a good practice to have.
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Click to collapse
Thank you very much. I'm about to unlock and go nuts on my phone. New phones are so fun to fiddle with!

if you want to use magisk you'll need to flash a custom kernel before you flash magisk. Also you'll need a modified magisk zip. Search around the thread you'll find one, the latest version I found was magisk v13.3.
Edit: Just found out magisk is officially support for pixel on version 14.1 Check out the magisk beta thread.

Rooting went fine Flashing rom almost bricked me due to directions??

I instslled magisk apk and then booted twrp .img in fastboot as directed and flashed magisk zip from twrp as said too . I Rebooted and was rooted fine . Downloaded Resurrection rom and the guide said to only wipe in twrp flash rom then flash twrp zip again and reboot/profit . The rom splash screen just sat there spitting out little purple pink splatters and never booted so I rebooted into twrp and flashed the twrp zip to make twrp permanent and ended up losing my stock backup from the boot.img twrp and my internal storage . Had taken all night to find the right tool kit to flash firmware back .
What went wrong ? How do you flash rom on this phone I'm no noob but I'm not risking it again .
After you boot twrp and flash magisk are you supposed to flash twrp.zip then make your backups and flash roms? I wasn't sure if it was a long bootup or not gonna boot ever
Sent from my [device_name] using XDA-Developers Legacy app

androidddaaron said:
I instslled magisk apk and then booted twrp .img in fastboot as directed and flashed magisk zip from twrp as said too . I Rebooted and was rooted fine . Downloaded Resurrection rom and the guide said to only wipe in twrp flash rom then flash twrp zip again and reboot/profit . The rom splash screen just sat there spitting out little purple pink splatters and never booted so I rebooted into twrp and flashed the twrp zip to make twrp permanent and ended up losing my stock backup from the boot.img twrp and my internal storage . Had taken all night to find the right tool kit to flash firmware back .
What went wrong ? How do you flash rom on this phone I'm no noob but I'm not risking it again .
After you boot twrp and flash magisk are you supposed to flash twrp.zip then make your backups and flash roms? I wasn't sure if it was a long bootup or not gonna boot ever
Click to expand...
Click to collapse
I see a couple possible problems with your steps. The biggest is not being prepared. Not a shot at you but a fact that comes with a new device. The easiest route at this point would be to list out what exactly you want to have as a finished project. I'm assuming rooted RR with installed TWRP? I ask because if you want to have TWRP installed you should also use a condom kernel that has the touch drivers. I'm not sure if RR had them by default it not. Anyway, confirm what you want and I'm sure one of us will get you pointed in the right direction. You won't find most of us using a tool kit, so you will learn the "right" way... Lol

CyberpodS2 said:
I see a couple possible problems with your steps. The biggest is not being prepared. Not a shot at you but a fact that comes with a new device. The easiest route at this point would be to list our what exactly you want to have as a finished project. I'm assuming rooted RR with installed TWRP? I ask because if you want to have TWRP installed you should also use a condom kernel that has the touch drivers. I'm not sure if RR had them by default it not. Anyway, confirm what you want and I'm sure one of us will get you pointed in the right direction. You won't find most of us using a tool kit, so you will learn the "right" way... Lol
Click to expand...
Click to collapse
I know it's a typo but condom kernel cracked me up. Does it automatically boot you to safe mode?
Sent from my Pixel 2 XL using XDA Labs

androidddaaron said:
I instslled magisk apk and then booted twrp .img in fastboot as directed and flashed magisk zip from twrp as said too . I Rebooted and was rooted fine . Downloaded Resurrection rom and the guide said to only wipe in twrp flash rom then flash twrp zip again and reboot/profit . The rom splash screen just sat there spitting out little purple pink splatters and never booted so I rebooted into twrp and flashed the twrp zip to make twrp permanent and ended up losing my stock backup from the boot.img twrp and my internal storage . Had taken all night to find the right tool kit to flash firmware back .
What went wrong ? How do you flash rom on this phone I'm no noob but I'm not risking it again .
After you boot twrp and flash magisk are you supposed to flash twrp.zip then make your backups and flash roms? I wasn't sure if it was a long bootup or not gonna boot ever
Click to expand...
Click to collapse
What?
I never flashed a custom ROM on this device, but it should be fairly easy. Turn off security settings on stock ROM, flash permanent twrp. Wipe system, dalvik/ cache and data and install RR. Boot and wait a few minutes, it sometimes takes some time. I don't know how the gapps situation is, so you might need to flash gapps. Also make sure to make a backup since you will wipe all data. Should be fairly easy of you followed the steps correctly

Vinnipinni said:
What?
I never flashed a custom ROM on this device, but it should be fairly easy. Turn off security settings on stock ROM, flash permanent twrp. Wipe system, dalvik/ cache and data and install RR. Boot and wait a few minutes, it sometimes takes some time. I don't know how the gapps situation is, so you might need to flash gapps. Also make sure to make a backup since you will wipe all data. Should be fairly easy of you followed the steps correctly
Click to expand...
Click to collapse
What I' did to flash the rom was separate from rooting procedures . The phone been unlocked for months.
I did both separate times
I fastboot booted twrp.img then I installed magisk zip. I did not permanent flash twrp zip after . I only flashed the perm twrp zip after I wiped and flsahed the RR Rom . So another words I was on twrp temp boot only when I flashed the rom then I flashed twrp zip per the rom Dev instructions . But I can't make sense why you have to flash twrp after you flash a rom install .
I'm assuming it goes like this
Install latest magisk apk.
Fastboot boot twrp .img
Then perm flash twrp .zip
Then flash magisk .zip
Reboot into the O.S and check for root
Reboot into (permanent Twrp) swipe to allow modifications .
wipe stock rom with the swipe only method??
Install Rom of choice and reboot !
Or is it install Rom /flash twrp.zip for a second time then reboot
Sent from my [device_name] using XDA-Developers Legacy app

CyberpodS2 said:
I see a couple possible problems with your steps. The biggest is not being prepared. Not a shot at you but a fact that comes with a new device. The easiest route at this point would be to list our what exactly you want to have as a finished project. I'm assuming rooted RR with installed TWRP? I ask because if you want to have TWRP installed you should also use a condom kernel that has the touch drivers. I'm not sure if RR had them by default it not. Anyway, confirm what you want and I'm sure one of us will get you pointed in the right direction. You won't find most of us using a tool kit, so you will learn the "right" way... Lol
Click to expand...
Click to collapse
I want to flash a rom but I'm not understanding how the pixel 2 xl works with twrp vs other devices .
If I reboot without first flashing a kernel then maybe that's the dilemma?
I just don't get why you need to flash permanent twrp .zip after you install Rom If you already had twrp permanent installed to begin with .
I' went over what I did in this thread and what I'm guessing I did wrong. So do I need special kernel for each and every rom listed . I never had to flash a kernel to get a rom to boot on any device and I've been flashing for years with T-Mobile phones on Galaxy devices and unlocked Google based phones.
Sent from my [device_name] using XDA-Developers Legacy app

I don't get why you would need to flash magisk before.
0. Make Backups and turn off security settings. Also make sure you're on the newest OTA
1. Boot into TWRP
2. Do a factory reset in Wipe settings.
3. Flash ROM
4. Flash TWRP of you want, not required but recommended
5. Reboot and set it up
6. Install magisk Manager and reboot to TWRP
7. Flash magisk and reboot
That's it.

CyberpodS2 said:
I see a couple possible problems with your steps. The biggest is not being prepared. Not a shot at you but a fact that comes with a new device. The easiest route at this point would be to list our what exactly you want to have as a finished project. I'm assuming rooted RR with installed TWRP? I ask because if you want to have TWRP installed you should also use a condom kernel that has the touch drivers. I'm not sure if RR had them by default it not. Anyway, confirm what you want and I'm sure one of us will get you pointed in the right direction. You won't find most of us using a tool kit, so you will learn the "right" way... Lol
Click to expand...
Click to collapse
Hey let me ask you something, I just got the Pixel 2 XL but I always do a lot of research. Something I wasn't prepared for is the touch issue in TWRP. It works fine when initially installed, works fine sometimes after a reboot, but always ends up not working because touch isnt working. You're saying I can install a custom kernel and that should be fixed? I've always rocked Elemental or Franco's but am on rooted stock and since I've never stayed stock before I'm not even sure if I can flash another kernel without changing ROMs. If I can, or even if I have to change ROMs, you're saying that most custom kernels have the touch in TWRP working?

nein7three said:
Hey let me ask you something, I just got the Pixel 2 XL but I always do a lot of research. Something I wasn't prepared for is the touch issue in TWRP. It works fine when initially installed, works fine sometimes after a reboot, but always ends up not working because touch isnt working. You're saying I can install a custom kernel and that should be fixed? I've always rocked Elemental or Franco's but am on rooted stock and since I've never stayed stock before I'm not even sure if I can flash another kernel without changing ROMs. If I can, or even if I have to change ROMs, you're saying that most custom kernels have the touch in TWRP working?
Click to expand...
Click to collapse
All the custom kernels fix the twrp touch issue. You can flash them anytime you want on stock rom via twrp. Just disable screen lock(just initially for safety) boot into twrp, flash your kernel then magisk, reboot and done

Badger50 said:
All the custom kernels fix the twrp touch issue. You can flash them anytime you want on stock rom via twrp. Just disable screen lock(just initially for safety) boot into twrp, flash your kernel then magisk, reboot and done
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Click to collapse
Thanks a lot. Does changing kernels remove magisk?

nein7three said:
Thanks a lot. Does changing kernels remove magisk?
Click to expand...
Click to collapse
Some do, some don't. That's why you flash magisk after the kernel. But that's changing as well :good:

because I can not install any rom custom but the official rom??

after I installed magisk I can not install any rom custom the only rom that works and the backup I made in twrp of the official rom
Does anyone know how to solve it?

I do not really understand what you are saying here, just wipe everything in twrp and flash rom. Magisk cannot survive a wipe.

What do I do to get back ROM with these errors?
I already did this I cleaned everything in twrp no more rom installs of the error 7 and also of the error in the fastboot to return stock rom error in the bootloader and the original recovery does not install also as if it did not have space .... the twrp has approximately 16mb and the recovery stock has 20mb and only recovery with 16mb

cleberkorg said:
I already did this I cleaned everything in twrp no more rom installs of the error 7 and also of the error in the fastboot to return stock rom error in the bootloader and the original recovery does not install also as if it did not have space .... the twrp has approximately 16mb and the recovery stock has 20mb and only recovery with 16mb
Click to expand...
Click to collapse
Twrp for our device is 15/16mb. Are you sure you have the 64 bit twrp? That would give error 7 if using standard release of twrp with the now 64bit ROMs.

continues to give error 7
I already tested several twpr of 64bits more anyway it continues to give error 7

I would fastboot flash the stock rom again. Back up storage first because it will be wiped.

Cupcake 1.5 said:
Twrp for our device is 15/16mb. Are you sure you have the 64 bit twrp? That would give error 7 if using standard release of twrp with the now 64bit ROMs.
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Click to collapse
my moto z2 play is working because I backed up by twrp my problem and the following when I try to install any custom rom it of the error in twrp in both x86 and x64 of the error and how much I try to install the stock rom by the error fastboot in the boot and no recovery all rom stock oreo the recovery is with 20megas and not for this reason ..... besides these problem every time I reboot the device connect direct by recovery ai I have to boot through fastboot and click on start for the android link

cleberkorg said:
my moto z2 play is working because I backed up by twrp my problem and the following when I try to install any custom rom it of the error in twrp in both x86 and x64 of the error and how much I try to install the stock rom by the error fastboot in the boot and no recovery all rom stock oreo the recovery is with 20megas and not for this reason ..... besides these problem every time I reboot the device connect direct by recovery ai I have to boot through fastboot and click on start for the android link
Click to expand...
Click to collapse
I can not make blankflash have any tutorials? I can not install the driver cualcomm how does the procedure?

cleberkorg said:
I can not make blankflash have any tutorials? I can not install the driver cualcomm how does the procedure?
Click to expand...
Click to collapse
I have no information on making blank flash but, there should be something on it in the q&a or guide part of this forum.

Some ROMs are'nt flashing

Okay, lemme get this clear that I'm not a pro in all this stuff. Infact, I'm a total idiot.
I have tried to flash a lot of ROMs on my Moto G5 (cedric) but only 3 of them have worked, namely:
1) Pixel Expirience 7.1.2
2) Ressurection Remix 7.1.2
3) Viper OS 7.1.2
I don't know whats the problem and whether it is with my phone or the ROMs. Also, even after i used these ROMs, the apps which need root access weren't working and yes i did select the Root Access setting to ADB only(cause thats was the only option other than Off). Plz help me guys.....

Astitva_ said:
Okay, lemme get this clear that I'm not a pro in all this stuff. Infact, I'm a total idiot.
I have tried to flash a lot of ROMs on my Moto G5 (cedric) but only 3 of them have worked, namely:
1) Pixel Expirience 7.1.2
2) Ressurection Remix 7.1.2
3) Viper OS 7.1.2
I don't know whats the problem and whether it is with my phone or the ROMs. Also, even after i used these ROMs, the apps which need root access weren't working and yes i did select the Root Access setting to ADB only(cause thats was the only option other than Off). Plz help me guys.....
Click to expand...
Click to collapse
First you need to say how you have done the flashing of roms and which rom didn't flash, or what error you got while installing the rom. And second is you need to install magisk manager to gain root access with twrp, by enabling the root access in developer option won't give you root access you need to install it via twrp.

riyan65 said:
First you need to say how you have done the flashing of roms and which rom didn't flash, or what error you got while installing the rom. And second is you need to install magisk manager to gain root access with twrp, by enabling the root access in developer option won't give you root access you need to install it via twrp.
Click to expand...
Click to collapse
I tried flashing them through TWRP. They all were based on Oreo 8.1. I tried Lineage, Invicta, Viper, RR and pixel expirience. As for the error, i don't really know what error it was but Lineage and RR were stuck on the boot loader and the rest just didnt flash.....

Astitva_ said:
I tried flashing them through TWRP. They all were based on Oreo 8.1. I tried Lineage, Invicta, Viper, RR and pixel expirience. As for the error, i don't really know what error it was but Lineage and RR were stuck on the boot loader and the rest just didnt flash.....
Click to expand...
Click to collapse
Chance are you are using the wrong twrp
64bit roms require you to use the 64bit twrp
See the first post of the lineageos thread for the 64bit twrp
Or you can test out the 64bit twrp that uses my encryption edits
https://forum.xda-developers.com/g5/help/help-testing-build-twrp-arm64-t3874472
If you want to root flash the latest version of Magisk and then install the magisk manager app manually if it's not installed

TheFixItMan said:
Chance are you are using the wrong twrp
64bit roms require you to use the 64bit twrp
See the first post of the lineageos thread for the 64bit twrp
Or you can test out the 64bit twrp that uses my encryption edits
https://forum.xda-developers.com/g5/help/help-testing-build-twrp-arm64-t3874472
If you want to root flash the latest version of Magisk and then install the magisk manager app manually if it's not installed
Click to expand...
Click to collapse
I'm sorry but i didn't get what you said. I'm really sorry but I'm really a noob. I would like it if you helped me out a bit....

Astitva_ said:
I'm sorry but i didn't get what you said. I'm really sorry but I'm really a noob. I would like it if you helped me out a bit....
Click to expand...
Click to collapse
All custom oero roms for this device are 64 bit
You need to flash them with a twrp that has been compiled for 64bit twrp use
My official twrp is for 32bit roms only and will not flash 64bit roms - you will get error 7 or I think error 256 or something like that
Flash the 64bit twrp if you want to flash 64bit custom roms - process is the same as if flashing the official twrp via fastboot but you obviously use the 64bit twrp image instead
As mentioned link to 64bit twrp is on the lineageos 15.1 thread first page or try the version in the link I posted in previous post

TheFixItMan said:
All custom oero roms for this device are 64 bit
You need to flash them with a twrp that has been compiled for 64bit twrp use
My official twrp is for 32bit roms only and will not flash 64bit roms - you will get error 7 or I think error 256 or something like that
Flash the 64bit twrp if you want to flash 64bit custom roms - process is the same as if flashing the official twrp via fastboot but you obviously use the 64bit twrp image instead
As mentioned link to 64bit twrp is on the lineageos 15.1 thread first page or try the version in the link I posted in previous post
Click to expand...
Click to collapse
So, I can directly flash the new twrp like i flash the roms right?? Also, what can i do for project treble in my phone...i mean, i cant find redwolf for moto g5(cedric)

Astitva_ said:
So, I can directly flash the new twrp like i flash the roms right?? Also, what can i do for project treble in my phone...i mean, i cant find redwolf for moto g5(cedric)
Click to expand...
Click to collapse
You flash twrp via fastboot commands
fastboot flash recovery recovery.img
Although it is technically possible to flash twrp via twrp if you select image flash & select recovery as the image you are flashing but I'd stick with the fastboot method
I don't own this device anymore so no idea about files that are no longer available

TheFixItMan said:
You flash twrp via fastboot commands
fastboot flash recovery recovery.img
Although it is technically possible to flash twrp via twrp if you select image flash & select recovery as the image you are flashing but I'd stick with the fastboot method
I don't own this device anymore so no idea about files that are no longer available
Click to expand...
Click to collapse
Okay, so i flashed the twrp...but still therom isnt flashing....should i upload the rom so that you can see it?

basically;
if a rom has [64bit] in the title, then it's 64 bit, if it is then you need a 64bit recovery which you can easily find on the forum. you dont even need to know what that means.

Astitva_ said:
Okay, so i flashed the twrp...but still therom isnt flashing....should i upload the rom so that you can see it?
Click to expand...
Click to collapse
Just link to the rom on xda and give the twrp error
The rom either isn't for this device eg you are trying to flash a moto g5 plus or s rom or you are using the wrong twrp or you haven't formatted system data cache before flashing the rom

Question TWRP flashing method

Hi all,
I have recently shifted from Samsung A52S to Onpelus 9 PRO.
I'm now a bit confused about flashing method....
I mean :
on Samsung devices, you have to use ODIN ( that is a Fastboot replacement tool ) in order to flash the TWRP and then, on TWRP, you can freely flash any new custom ROM or any other img files, by simply press "INSTALL" button instad of ADB sideload commands.
If I well understood, in order to flash this custom ROM, I have to do that through Fastboot commands before and through TWRP ADB sideload commands after......
My question is : may I flash boot.img / vendor_boot.img / dtbo.img and ROM zip directly through TWRP "INSTALL" button instead ???
If not, can someone kindly explain which is the reason why ?
Sorry for this noob question but I'm doing my first step into Oneplus and I don't want to do a mess.....
Many thanks for the help !

I personally been wanting to know why we no longer can simply flash custom roms via TWRP like we use to. I do believe its got to do with the way the A/B partition works however that does not really answers why we can't just flash via TWRP. Unfortunately, I have not been able to find the answer so I am interested too on why we can't simply flash custom roms in TWRP and have to resort in sideloading or via fastboot. I would think flashing via a zip in TWRP will have less user errors compare to using a command line to do your flashing.
Saying that, I have been flashing via fastboot since I got this phone and even though its a longer process, it only takes a few more minutes.

twrp is not even fully adapted for android 12 or 13 (but who needs twrp anymore?)
I prefer to flash via fastbootd
(is less work for me)

best way is the magisk install

ChrisFeiveel84 said:
twrp is not even fully adapted for android 12 or 13 (but who needs twrp anymore?)
Click to expand...
Click to collapse
twrp is still the only way to backup the whole rom
it exist a non official version for 12/13

TWRP is the best tool to recover files when the OS does not boot. Since there is no ROM or kernel out there that recommend or uses TWRP for flashing. There is little reason to use TWRP unless is for file recovery. This is in respective to OP 9.