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a lot of reading and there are multiple threads with steps that aren't exactly clear or contradict each other or are outdated.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.
Click to expand...
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.
Hello,
I have a problem while flashing a GSI on my Cubot X18 Plus.
The Phone is Android 8.0 from stock, Treble Check and Community are saying it is treble compatible.
As far as I can say, it is A-partition only, had no seamless updates and stuff.
It has a Mediatek MT6750T and I already unlocked the bootloader and flashed a (unofficial) TWRP recovery.
According to the few "how tos" and how I know from my past flashings (not treble) I tried to flash the GSI, but everytime TWRP says there is no OS installed just before reboot and after telling me the image flash was succesfull.
Now I found another site with a how to about flashing the GSI just with fastboot (fastboot -u flash system image.img).
Now I have a running OS and it seems to work just as supposed.
Quite a while ago I tried this before and had a phone that wasn't receiving any calls...
So my primary question is: Is flshing the IMG with fastboot the same as with twrp?
My secondary: Why the hell is twrp not working? I posted a summary of my steps over here: https://forum.xda-developers.com/an...us-mt6750t-t3806752/post79644287#post79644287
Fastboot is better.....I even have these results on an xperia X
Same happened to me with TWRP, "no OS installed" but it booted to system.
In my opinion, and after flash IMGs with Fastboot and TWRP, I would say it's the same.
Try to reboot even after the "No OS" message and see if it works, if it doesn't boot, just manually reboot to TWRP.
I was flashing PHH's AOSP GSI ROM (version 208, AB, GAPPS included) to my RN8P. This is a supported ROM and should theoretically work. I did this without TWRP and wiped data using ADB. It is important to note that at this point I decided that it probably should have TWRP anyway and flashed that before flashing my ROM using
Code:
fastboot flash system (name of rom).img
I then rebooted to find my phone in a bootloop. I am letting the power drain at the moment but I have no idea what to do when I power it on again.
On my way to installing LineageOS I tried to downgrade Android version 11 -> 10. Unfortunately I used the WRONG INCOMPATIBLE firmware files from google's website (I think for 3 XL), that's why I have a brick now. ''Device is corrupt and no bootup possible.''
Access to Fastboot and STOCK Recovery Mode is possible.
Bootloader is Locked Now (it *was* unlocked before for flashing the firmware)
ADB is not working (since I'm getting stuck on ''google'' symbol when booting up I can't go to Developer Settings)
Factory Preset from Recovery Mode fails: ''can't send spi messages.'' Same Brick occurs.
With No Access to ADB (is it possible to set up from fastboot mode without enabling it in den Developer Options?) I can't try stuff.
And with the bootloader locked no way to flash a new Rom right?
I have NO IDEA what to do next, any IDEAS??
Thank you!!
#brick
Since you can get to recovery you should download the latest ota and sideload it from recovery.
https://developers.google.com/android/images
you should flash the stock image from recovery. Basically unzip it all and just run "flash-all.bat"
41rw4lk said:
Since you can get to recovery you should download the latest ota and sideload it from recovery.
Click to expand...
Click to collapse
Thank you, this worked perfectly fine, since you don't need an unlocked bootloader to flash this system image.
However, I am facing a new problem on my way to installing TWRP Recovery Image...!!
CMD gives me THIS log:
Writing 'recovery' FAILED (remote: 'Not allowed to flash (recovery)')
fastboot: error: Command failed
- the device is unlocked (I even relocked it and unlocked it again, didn't work)
- I tried one other older .img for my phone from official twrp.me website, didn't work
Any Ideas?
dadu1257 said:
Thank you, this worked perfectly fine, since you don't need an unlocked bootloader to flash this system image.
However, I am facing a new problem on my way to installing TWRP Recovery Image...!!
CMD gives me THIS log:
Writing 'recovery' FAILED (remote: 'Not allowed to flash (recovery)')
fastboot: error: Command failed
- the device is unlocked (I even relocked it and unlocked it again, didn't work)
- I tried one other older .img for my phone from official twrp.me website, didn't work
Any Ideas?
Click to expand...
Click to collapse
You need the BL unlocked to flash unsigned/unofficial images, so make sure yours is unlocked. That being said, I'm not sure how solid twrp is for our device, I've never tried it. Twrp was/is a little iffy for android 10 never mind 11. Most around here just use fastboot to do what needs to be done. Most of it is pretty quick and painless, and twrp is not really necessary.
dadu1257 said:
Thank you, this worked perfectly fine, since you don't need an unlocked bootloader to flash this system image.
However, I am facing a new problem on my way to installing TWRP Recovery Image...!!
CMD gives me THIS log:
Writing 'recovery' FAILED (remote: 'Not allowed to flash (recovery)')
fastboot: error: Command failed
- the device is unlocked (I even relocked it and unlocked it again, didn't work)
- I tried one other older .img for my phone from official twrp.me website, didn't work
Any Ideas?
Click to expand...
Click to collapse
I'm pretty sure you would have to downgrade to android 9 (pie) and install a custom kernel to get twrp to install. Unless you want to rock android pie - like I currently am (Bootlegger's 9 - I like my smartbar customizations) - it's best to give up on TWRP and just use fastboot commands for android 10 and up.
If you do decide to downgrade to pie the elementalX kernel (ElementalX-P3a-1.06) works fine with twrp and is available on their site. Temp boot twrp via fastboot, flash kernel, flash twrp zip file, reboot to recovery and flash magisk zip for root (if you want root). But it may be hard to find older pie ROMs out in the wild to flash since devs have dropped support and will be focused on android 10/11.
teemothay said:
I'm pretty sure you would have to downgrade to android 9 (pie) and install a custom kernel to get twrp to install. Unless you want to rock android pie - like I currently am (Bootlegger's 9 - I like my smartbar customizations) - it's best to give up on TWRP and just use fastboot commands for android 10 and up.
If you do decide to downgrade to pie the elementalX kernel (ElementalX-P3a-1.06) works fine with twrp and is available on their site. Temp boot twrp via fastboot, flash kernel, flash twrp zip file, reboot to recovery and flash magisk zip for root (if you want root). But it may be hard to find older pie ROMs out in the wild to flash since devs have dropped support and will be focused on android 10/11.
Click to expand...
Click to collapse
Unlike most of the LineageOS Tutorials out there is used the Custom Recovery from Lineage to install LIneageOS! It was super easy, a few ADB commands and here it is. No Root, no TWRP whatsoever.
Follow wiki lineageos devices website instructions. Here you may also find the recovery data.
Thx guys/girls!
dadu1257 said:
Unlike most of the LineageOS Tutorials out there is used the Custom Recovery from Lineage to install LIneageOS! It was super easy, a few ADB commands and here it is. No Root, no TWRP whatsoever.
Follow wiki lineageos devices website instructions. Here you may also find the recovery data.
Thx guys/girls!
Click to expand...
Click to collapse
Cool. No more soft brick for you :good: Congrats on sorting things out. :highfive:
BUT I still cannot install TWRP Recovery on LineageOS 17. I am getting the same problem as quoted below.
I want to perform Nandroid Backups, any other way to that if TWRP doesn't want me? Maybe with a Magisk Root and some app from F Droid?
?
thanks
dadu1257 said:
Thank you, this worked perfectly fine, since you don't need an unlocked bootloader to flash this system image.
However, I am facing a new problem on my way to installing TWRP Recovery Image...!!
CMD gives me THIS log:
Writing 'recovery' FAILED (remote: 'Not allowed to flash (recovery)')
fastboot: error: Command failed
- the device is unlocked (I even relocked it and unlocked it again, didn't work)
- I tried one other older .img for my phone from official twrp.me website, didn't work
Any Ideas?
Click to expand...
Click to collapse
dadu1257 said:
BUT I still cannot install TWRP Recovery on LineageOS 17. I am getting the same problem as quoted below.
I want to perform Nandroid Backups, any other way to that if TWRP doesn't want me? Maybe with a Magisk Root and some app from F Droid?
?
thanks
Click to expand...
Click to collapse
Twrp doesn't work very well on android 10 and above, there is a twrp install guide around here, but not much has come from it. When was the last time anyone actually made and used a nandroid backup? Not that backups aren't important, but that's a little antiquated. Besides, most are really trying to backup data, which is a shared partition on A/B devices. Generally, restoring data on A/B devices causes more problems than anything. Most data backups can be done with an app and/or making a backup of your internal storage. As for more sensitive things like your persist partition and whatnot, you can always use the 'dd' command to back those partitions up.
I should clarify, restoring nand backups of data causes more problems on A/B devices, apps that restore data and settings tend to handle it better.
Now having a different problem
I tried to install Magisk following this guide https://magisk.download/root-pixel-3a-3a-xl/
When I try to flash magisk_patched.img in fastboot, it flashes, but reboots to fastboot with "error boot prepare" displayed.
I am stuck in Fastboot now.
How can I get out of that?
I used the boot.img from the google firmware android 10 I built Lineage on. Should I use a boot.img from LineageOS .zip? Is there anything like this?
What is dm-verity?
Can I get to my previous unrooted device?
I have a Pixel 3aXL with LineageOS 17
''bootslot: b
enter reason: error boot prepare''
dadu1257 said:
Now having a different problem
I tried to install Magisk following this guide https://magisk.download/root-pixel-3a-3a-xl/
When I try to flash magisk_patched.img in fastboot, it flashes, but reboots to fastboot with "error boot prepare" displayed.
I am stuck in Fastboot now.
How can I get out of that?
I used the boot.img from the google firmware android 10 I built Lineage on. Should I use a boot.img from LineageOS .zip? Is there anything like this?
What is dm-verity?
Can I get to my previous unrooted device?
I have a Pixel 3aXL with LineageOS 17
''bootslot: b
enter reason: error boot prepare''
Click to expand...
Click to collapse
Reflash the boot.img from Los17 to get back to proper boot up, then patch Los17 boot.img and flash that to have root.
41rw4lk said:
Reflash the boot.img from Los17 to get back to proper boot up, then patch Los17 boot.img and flash that to have root.
Click to expand...
Click to collapse
Where is the boot.img from Lineage? There is no such file in the Lineage folder I downloaded.
dadu1257 said:
Where is the boot.img from Lineage? There is no such file in the Lineage folder I downloaded.
Click to expand...
Click to collapse
A lot of devs wil upload the boot.img separately when they upload the rom, so wherever you downloaded Los from check there. If you just have a payload.bin file in your zip, you can always dump it and grab the boot.img there. You could always just reflash Los period to get boot back, then us 'dd' command to backup your own boot.img.
custom recovery for lineageos 17 based on android 10?
teemothay said:
I'm pretty sure you would have to downgrade to android 9 (pie) and install a custom kernel to get twrp to install. Unless you want to rock android pie - like I currently am (Bootlegger's 9 - I like my smartbar customizations) - it's best to give up on TWRP and just use fastboot commands for android 10 and up.
If you do decide to downgrade to pie the elementalX kernel (ElementalX-P3a-1.06) works fine with twrp and is available on their site. Temp boot twrp via fastboot, flash kernel, flash twrp zip file, reboot to recovery and flash magisk zip for root (if you want root). But it may be hard to find older pie ROMs out in the wild to flash since devs have dropped support and will be focused on android 10/11.
Click to expand...
Click to collapse
thanks!
I got Lineage 17 w/ Magisk root running now and want to perform a full NANDroid Backup.
After some research it seems crucial to have a custom recovery like TWRP for that. There is the online nandroid thing - but I would need CWM or anything like this to restore?!
So my question is
a) is there another custom recovery (compatible with Pixel 3a XL w/ lineage 17 based on android 10) I can install and perform Nandroid backup with?
b) any other solution to perform this backup and restore? I heard there are cmd commands for that as well , but I'm a noobie not so sure to do that.
of course there are several apps out there to backup data.. but I don't trust ''any'' app to get root permission. In F Droid I couldn't find what I was looking for.
thank you for help!
After trying to install a custom ROM (PixelExperience for OnePlus 7T [hotdogb]) via fastboot, the installation flashing ended with errors with "no such partition" for odm, product and system I tried everything to get out of the fastboot screen loop. After finding a bat file with IMG files which got me on the Android 11 Beta 1. build (still no WiFi)
What can I do to fix the partition error to get on the Pixel Experience ROM or even get back to the stable build - I did try MSM but it isn't listing the phone even after pressing ENUM.
Please help...
Context (can skip): The latest stable build OOS for my 7T had issues with the microphone not working and so I decided to do a factory reset which resulted in having a clean install but now, WiFi doesn't connect for some reason. After trying some fixes I decided to install a custom ROM.
U need to flash stock recovery (fastboot flash recovery recovery.img) as twrp prevents fastbootD entry. Then type fastboot reboot fastboot to enter fastbootD. Then flash your rom. Personally, I just flash roms via Chinese twrp or 3.5.10 twrp
HueyT said:
U need to flash stock recovery (fastboot flash recovery recovery.img) as twrp prevents fastbootD entry. Then type fastboot reboot fastboot to enter fastbootD. Then flash your rom. Personally, I just flash roms via Chinese twrp or 3.5.10 twrp
Click to expand...
Click to collapse
that was my process for the first try - entered fastbootD for the flashing process which ended with the mentioned partition error and the fastboot loop. I realised that TWRP version I got from TOOL ALL IN ONE wasn't going to work as it couldn't access data no matter what.
No twrp can decrypt oos or a11 custom roms data. Chinese twrp can access data only on a10 custom roms if u remove screen lock before booting into twrp for backup
What do you reckon I try this time then?
itssata said:
What do you reckon I try this time then?
Click to expand...
Click to collapse
[OP7T][OOS 11.0.5.1 HD65AA/BA] Unbrick tool to restore your device to OxygenOS
Disclaimer: By attempting any of the processes listed in this thread you accept full responsibility for your actions. I will not be held responsible if your device stops working, catches fire, or turns into a hipster and claims to have been...
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