Nexus 9 Lineage to stock rom - Nexus 9 Q&A, Help & Troubleshooting

Hi. I bought a used N9 this evening and it has been quite some time since I had an Android device, well at least a year, and am not familiar with the lineage thingy. I am trying to switch it back to stock but don't know how to. Also I can't bypass the setup screen. When I select the "set up as new" option in the beginning I get the "Setup Wizard has stopped, Open app again". When I select the 'Copy your Data from another device or cloud' option, it can't find any wi-fi networks. Would someone be able to help me figure out how to install the stock rom without having to pass the initial set-up screen.

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Nexus 7 Lineage Setup Problem

i have the last cm-14.1-20161225-nightly-flo working fine on my Nexus 7 wifi - never had problems with network connection
i tried to install now the newest Lineage 14.1-20170418-nightly-flo with open_gapps-arm-7.1-nano-20170425 and then rooted with supersu 2.79
installing ok, also the Lineage OS started, but after the choosing the language i got problems on setup wizzard. get the message when i choose new device.
and when i try to use existing cloud account, there is message no networking discovered...
and there is no skip button to make the setup later, nothing to do...
somebody can help?

[HELP] Hard Reset, and my phone's not working!

Hello,
I have unofficially unlocked my bootloader using this method:
And have installed Pure Nexus ROM in proper method (1. Flashing Firmware. 2. Flashing ROM. 3. Flashing GAPPS 4. Magisk 5. Franco Kernel) on my Kenzo and it was working perfectly fine for over a month (with few issues such as network drop on VoLTE, etc.,) until yesterday, so I came across in a forum post that the firmware from LineageOS fixes network drop issues, and so I have flashed it and Wipe+Dalvik Cache cleared. When I rebooted I found that the device wouldn't startup and later came to know I have lost my recovery as well. I have used MiFlash to install stock rom on my phone, and it successfully installed the ROM too, but when I tried to login to my MiAccount (during startup wizard) it shows an error that I have made multiple verification request within 24 hour time period. I have somehow Bypassed the setup wizard by installing GO Launcher, but when I try to access the developers options to enable USB Debugging and OEM Unlock it says "Developer options are not available for this User". Nobody could call me as well (1st ring goes and later it says the person is busy making me hang up on them but I actually am not), and it's been almost 2 days. This is my only phone I have! Really want a help to switch back to Custom ROM, or least fix this and stay stockish!
Thanks in advance!
Perhaps the least thing you've got is to wait that 24h period to expire, reboot and log your account. If account problem persists, contact xiaomi.

Xiaomi MiMix 3 after flashing xiaomi.eu rom, stuck on checking for updates (at setup)

Hi,
I flashed the xiaomi.eu rom with magisk for my mi mix 3. The installation was smooth and no problems occurred. The phone booted up after install and showed the Miui 10 set up wizard. I chose the language and then connected to the wifi and it then goes to the screen that says it is checking for updates, and it is just stuck there with the wheel spinning. I had no options to skip it and the same thing happens when I try to connect through cellular data.
Do I just have to wait or is this some kind of bug? I am currently in China, so maybe the internet restrictions in China is affecting it somehow? I don't think I did anything wrong with the install and have no idea why it is like this. I can still access TWRPs so is there a way for me to skip the setup wizard at the start? If I can skip it will it affect the phone in some way or will it just be default settings?
Any help will be much appreciated.
Did you found the solution?

Install Custom Rom with SP Flash tool.

Hi,
So here's my problem. (Sorry, it's a long story)
I purchased a phone from a french company ("Archos") three months ago. The Android phone was working fine until lately when I've been getting random freezes. When I would scroll on an app (Twitter's Feed, Reddit Homepage), the phone would freeze. The only way to solve this problem was by rebooting entirely the phone. Sometimes, the phone would also freeze at random moments (on the Lock Screen, the Homepage, etc...) with the only issue being to restart the phone.
I tried to factory reset the phone but it kept on freezing, even freezing on the first page of the Android Setup Wizard (The one with the "Welcome" label and the "Get Started" button) preventing me from touching the "Get Started" button. After multiple reboots and factory resets the phone was still freezing randomnly.
One thing to know is that the phone was apparently running Cyanogenmod since it's primary launcher was Trebuchet. So, I tried to install a stock copy of Android Nougat (7.0) hoping it would fix the problem. The thing is, there's no TWRP image available for my device (Archos Sense 55S). Instead, I used an tool name "SP Flash Tool" to flash directly a copy of Android onto my phone (I managed to find one online).
But the problem did not get solved. Now, it's worse. Before, even though the phone kept on freezing on the first page of the Android Setup Wizard, 1/12 of the time, it would let me touch the "Get Started" button and proceed with the rest. Now, it won't let me touch the button at all, it seems like the application is not receiving any input at all. I know the screen isn't broken because the "Enter SIM Card password" prompt works perfectly fine and when I want to turn off the phone, I can easily select "Power Off", "Reboot", confirms "OK" on the "The Phone will restart" dialog box, adjust the volume levels, the screens responds! But on the Android Setup Wizard: nothing's happening.
I am desperate. It feels like I have tried everything. I cannot install anything else (through ADB & Fastboot) since I can't unlock the bootloader because I can't allow OEM and/or USB debugging (I can't access the settings without completing the Android Setup Wizard). My question is there a way to install a custom rom with SP Flash tool? If so, is it recommend? Won't that brick the phone? Or is it too late now, and it's over?
Thank you for your time.

First boot stuck on "Check updates"

Hi to all, in the last two months i'm trying to update my mi pad 4 plus from Havoc 2.7 to a new verion.
Updating to havoc 2.8 from ota apparently works but then gmail, calendar, note cannot sync and give errors.
I have tried a clean flash, wiped data/system/vendor/cache, formatted internal data, no differences, on the first boot after setting the wifi connection the tablet stay constantly on "Checking for udpates" and no way to go on.
i tested different roms (PixelExperience, Havoc 2.8, Omnirom) but from the august updates nothing works, the only rom is working is the 2.7 Havoc of july (restore backup or clean flash).
I tested every possibile combination, with or without gapps (tried different version and always checked the md5), with or without root but no difference.
When i have writed in differente thread this problem they always answer me to "go back and change wifi", check and re-download rom but also after check this no differences, always hangs on the first "Check updates".
If i skip the wifi connection the tablet try to start but immediatly say "no connection".....
Someone have the same problem and know eventually how to fix?
Thanks

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