Develop Bugs

Flashing Android L on rooted and ROM'd Nexus 7

I have a Nexus 7 (2013) with TWRP recovery and CleanROM installed do I have to return to the stock ROM or do anything else before flashing Android L?

matt_man said:
I have a Nexus 7 (2013) with TWRP recovery and CleanROM installed do I have to return to the stock ROM or do anything else before flashing Android L?
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No. Make a nandroid. Use the flash_all batch file after modifying it by removing the -w from the text using a text editor like notepad. Removing the -w text will prevent your storage from being wiped. Using the flash_all batch file will replace TWRP with the stock recovery. Or you can fastboot flash the bootloader, boot and system images, this way you don't have to replace TWRP. With a major update it will probably be more reliable if you do a factory reset from inside TWRP (will not wipe storage) before flashing the new OS (Android L). You will also need the SuperSu zip on your device so that you can install it with TWRP if you want root.
Edit: As it turns out you need a modified version of the stock kernel for root to work and the correct version of supersu. I flashed the L preview last night and flashed SuperSu v2.13 and the binaries didn't work so I just blew it off because I had no plans to stay on the preview. After maybe an hour I went back to 4.4.4 anyway Right now I'm not a big fan of a lot of the UI changes.

Unlocked Bootloader, h815, TWRP , BUT getting"Error 7" all the time?

Hi, I have a h815
Unlocked Bootloader
Upgraded to the standard LG 6.0
In TWRP I have tried to flash CM 13, RR and another Rom and I keep getting "Error 7" everytime.
How to fix?
Thank You

You have to perform factory reset.

So boot into TWRP, Factory reset and then Flash RR?

I've since a few weeks the same issue but it seems that this has no effect.
And it occurs only when I flash a new kernel. When I flash a new rom error 7 dont pop up.
I done same factory resets, sys partion is write/read.
I decided to ignore it for the moment, since it has no effect.

but I cant flash a rom because of it, not kernal.

FYI, A Full Wipe resolved it, Thank You

TWRP Issues

Hi all,
I have been trying to flash my Nexus 5X running on Android Oreo. Every time I flash it, boot into system and then go back into recovery it overwrites itself. Anybody ever heard of this?
Thanks.

c_ob said:
Hi all,
I have been trying to flash my Nexus 5X running on Android Oreo. Every time I flash it, boot into system and then go back into recovery it overwrites itself. Anybody ever heard of this?
Thanks.
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Click to collapse
Yes. Instead of flashing TWRP boot into it with fastboot. Then flash supersu in TWRP. After that boot into the bootloader from TWRP and turn flash TWRP with fastboot.

TWRP, Factory Img Flash question

On Phalanx's recommendation I have downloaded factory images and intend to update from 8.1 to 9.0 via fastboot.
I do have a question though - I have newest TWRP installed - does flashing factory image remove TWRP? I want to to a wipe and have a clean install using homeboy's guide. Can I use TWRP to flash the factory image, if so is there an advantage to doing it via fastboot instead?
Sorry if this a dumb question, i just remember back in the day I could load up CWM recovery, and flash roms to my hearts content.
Thanks yall!

Flashing stock recovery and taking Android 10 OTA (without data loss)

Hi guys!
I am running oxygen os 9 on my oneplus 5t. I have TWRP and Magisk installed. I would like to unroot my phone, return back to stock recovery and then take the android 10 ota. I would like to achieve this without any sort of data loss.
My plan is the following:
-Unroot my device using 'complete uninstall' in magisk
-Flash the stock recovery image using adb/fastboot
-Take the OTA
It's been a while since I tinkered around with my phone, so I am a bit confused. Do you think this will work? Will I lose any data?
Thank you for the help in advance.

Why do you want to OTA? You can follow the guide in the official thread here for a rooted device. From memory, the dirty flash also restores the stock recovery.