Bootlooping; flashing OTA update not helping, bootloader locked. Can ADB unlock it?

EnglishMobster

New member
Sep 19, 2018
3
1
0
I converted my girlfriend (a long-term iPhone user) over to Android, and we got a shared plan with Google Fi. She installed the December OTA update, and today her Pixel XL began bootlooping.

She is running completely stock Android -- I haven't touched it in any way, and she doesn't know anything technical about the phone (so no funny business on her end). The phone was constantly bootlooping, sometimes with artifacts appearing on the screen (which looked like the "static" you'd see on a TV screen not set to any channel). These artifacts wouldn't happen every time, but about 25% of the time they'd appear.

I can boot into the bootloader with zero issues. Fastboot recognizes the device just fine. At first, I couldn't boot into recovery -- it would crash and start bootlooping before loading the recovery screen. Finally, though, I managed to get into recovery and did a standard factory data reset. No dice. I went into recovery again and flashed the OTA image via adb. This solved the "crashing before getting into recovery" issue, but not the general bootloop issue. I can't downgrade the OTA now, either.

My next option is to flash a factory image. However, as I mentioned, the phone is completely stock -- with a locked bootloader. I can't get into the device at all due to the constant bootloops. Is there ANY way to allow OEM unlocking through ADB/Fastboot? I'm running out of options here.
The good news is that Google Fi now supports iPhones, and she still has her old iPhone. I don't know if her Pixel XL is under warranty, though, so I don't know if they can RMA her a new one. Any help?
 

EnglishMobster

New member
Sep 19, 2018
3
1
0
Update: She talked to Google Fi support (and by "she," I mean her calling me over to explain the technical stuff to the support rep), and they're going to RMA her a new one. Which sucks, but at least she has her iPhone until then. For anyone coming from the future, this thread matched my problem exactly, but ultimately I wasn't able to fix it. Even so, it might come in handy if this ever pops up on a Google search somehow.

Moral of the story: Leave your bootloader unlocked unless you absolutely need it locked. And even then, people were reporting that their phones got bricked.