OnePlus 8 Randomly Bricked Itself? - OnePlus 8 Questions & Answers

My phone has been working fine, literally no issues until today. I went to look at my phone and the lockscreen wouldn't come up. The phone isn't dead, I looked at it probably 20-30 minutes previously and it was at about 30% battery plus I charged it for about an hour and it still would not come on. The phone is essentially a paperweight right now. I cannot access anything and I cant factory reset it because it is completely unresponsive.
I tried using the MSM tool but no matter what wire I use, it keeps disconnecting and reconnecting. Anyone have any idea? Been fighting with it for 2 days now.

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LG Boot screen loop.

I had to do a hard reset (volume- power) just to get the phone out of the loop. The cause? Charging the phone! The battery drained, I plugged it in, and I walked away from it. I come in about a half hour later, and I see the phone is on, constantly rebooting at the LG screen, which means it booted itself somehow. I pick it up, and it's burning hot.
So now I'm royally pissed, and I think it's going back tomorrow. I can put up with the battery life, because there are ways to manage that. But this is the last straw, I'm afraid.
Has anyone else had this happen while doing a simple charge (wall charger)?
When I unlocked mine it did the same thing. I ended up having to use the LG Mobile tool to "update" it and reset the settings to factory. It erased all the programs I had but maintained the rooted unlocked condition it was in. I have had this on several android phones. Never more than once.
Mine has worked perfectly since with an average of 11 hours of battery life per charge with pretty decent use.
Sent from my LG-P999 using XDA App
same here!!

[Q] Possible battery drain when off

I really don't know if this is possible or not.... but I might need to get some new corduroys after a case of the brown adrenalin with my new sensation.
Got it Friday as could see progress on the rooting and sure enough Revolution came up with the goods same day. Rooted it Saturday.
Fully charged it, switched it off and went back to the HD2 - flip case and car kit arriving today. Really don't wanna damage my new boy toy by pocketing it with car keys etc.
Stone me though I thought I bricked it. Wouldn't switch on this morning - just a dark flicker of the screen. Sweat pouring off my forehead. Never bricked a device and flashed my HD2 & TP2 a million times and my £450 unlocked handset is 3 days old and dead..
Long and the short of it is plugged in the charger again and a few minutes later it powers up - 3% battery.
Is it possible it could drain switched off? Or should I blame the kids for messing with it and deduct my dry cleaning bill from their pocket-money?
After I rooted, I had to do a battery pull until I was able to turn my phone on again, although this doesn't really replicate what problem you had...
The battery does not drain if the phone is turned off.
Question is, was it definitely turned off?
Even if it wasn't, there's no way a full charge is going to drain overnight... Unless you had a Satnav running...
Sent from my HTC Sensation Z710e using XDA Premium App
You're right - it SHOULDN'T... I'd rebooted no problems several times after the rooting. Some OTA update came over and didn't install successfully though.
It'd be very odd (and a warranty issue, get ready to go into rooting reverse) but for now I'm inclined to just blame the kids. Unless anyone else has has similar experiences.
I guess time with it will tell.
EDIT: Apparently it's a known issue and has been fixed with the new CWM update! See: http://forum.xda-developers.com/showthread.php?t=1192300
Ah ha, looks like it's not just me!
This just happened to me today and I had to change my pants because I thought I bricked it. I rooted it and installed InsertCoin no problems!
Today, as it jumped off my WiFi and onto the mobile network it got stuck on "Disconnecting from Morsolo's WiFi" and just sorta froze there (the phone still worked, but it wouldn't fully disconnect from WiFi, so I got no mobile data).
I turned the phone off via normal methods (40% Battery)... Then it wouldn't turn back on. The phone was a little bit hot at this point, but it does heat up so I thought nothing of it.
For a good 30 minutes, nothing happened. All that I could see happening when I attempted to turn the phone on was, the screen backlight would turn on, fade off, turn on, fade off. No boot, no recovery, nothing.
I tried charging it and it would show the indicator for 2 seconds and stop charging (but this is a known issue, apparently it continues to charge regardless).
After numerous times pulling the battery, trying to start, charging, battery, start... I finally managed to get it to boot and it said the battery was at 3%... After the phone was STONE COLD DEAD for a good 30 minutes to 1 hour.
...I just got home (with a dead battery, of course) and now that I've plugged it in again, it wont boot, again.
I think we've discovered an issue.
EDIT: Good man. Thanks for the update. Better get onto that right away.
Yup.. that's the same experience... except I'm still on stock rom with tweaks.
What do you reckon - flash back to stock and see if it still happens? Really don't want it turning into permanent paperweight with an iffy bootloader for someone at warranty to find with their JTAG.
Morsolo said:
Ah ha, looks like it's not just me!
This just happened to me today and I had to change my pants because I thought I bricked it. I rooted it and installed InsertCoin no problems!
Today, as it jumped off my WiFi and onto the mobile network it got stuck on "Disconnecting from Morsolo's WiFi" and just sorta froze there (the phone still worked, but it wouldn't fully disconnect from WiFi, so I got no mobile data).
I turned the phone off via normal methods (40% Battery)... Then it wouldn't turn back on. The phone was a little bit hot at this point, but it does heat up so I thought nothing of it.
For a good 30 minutes, nothing happened. All that I could see happening when I attempted to turn the phone on was, the screen backlight would turn on, fade off, turn on, fade off. No boot, no recovery, nothing.
I tried charging it and it would show the indicator for 2 seconds and stop charging (but this is a known issue, apparently it continues to charge regardless).
After numerous times pulling the battery, trying to start, charging, battery, start... I finally managed to get it to boot and it said the battery was at 3%... After the phone was STONE COLD DEAD for a good 30 minutes to 1 hour.
...I just got home (with a dead battery, of course) and now that I've plugged it in again, it wont boot, again.
I think we've discovered an issue.
Click to expand...
Click to collapse

Phone died all of sudden AGAIN?

Not sure if anyone has any new ideas as I've had this happened before and had to get the phone fixed with new motherboard. My phone has been working ok with the official ICS update. It's rooted. Things seem to be a little weird the last few days with the phone hanging and sometimes the screen will just turn into this fuzzy appearance and yesterday while it was just sitting on my desk..it seem to be using a lot of power with the battery going to 4% from 80% in just 3-4 hours idling. IT also got really hot while charging, so i turned it off and rebooted. Thought it was fine.
Then last night, while charging, it seem to be sluggish. so I restarted the phone. But after it turned off..it won't respond anymore. No light when plug in for charging, or plug to computer...cannot go into bootloader with vol down / power.
I had a similar experience before when the phone suddenly died 3 mths ago and thought it was related to a custom ROM, but HTC replaced the motherboard...now it's unresponsive same way.
Time to send back again? Or anyone have new ideas about this?
Take out the battery, put it back in. Try to turn it on. Still nothing? Volume down and power. No bootloader? Sorry, its probably dicked.
There's other things to try, but from what ive gathered, they probably won't help.

Is it completely bricked? What should I do?

So I bought this Huawei Mate 8 and to be honest I really loved it, it's the best phone atm imo. And it's pretty expensive in my currency. I've owned the phone for a couple of months now, 4 months I'd say. And just 12 hours ago, problems started.
It all started when I attempted to use the fingerprint scanner and my phone randomly restarted. Huh, I ignored it. But it happened again when I tried to open settings. It'd crash randomly on random actions. But it almost always crashed when I tried to open settings or use scanner. I removed my SD card and then it worked fine for a couple of hours, then it restarted again.
And sometimes it restarted many times over to the point where I'd think it's boot looping. But it'd eventually start. I reset the phone hoping it'd fix the problem if it's software related. But it always restarted right before I could enter my Google account to start the phone. But it reached it's eventual death. It crashed again but it didn't restart this time. I tried connecting it to its charger, but no response and no heat at all, not even in the charger's adapter. And my laptop didn't detect it at all.
What should I do now? This phone is new and expensive. I'm very careful with my devices and it's in a perfect condition. The only incident with it was when my selfie stick got too tight on the power button for like 10 seconds then I took it out. That was the same day the issue happened, so I'm not sure if it's just a coincidence. Anyways please tell me what I should do right now, and yes, the phone is still in warranty but I doubt they'd change it for me, their customer service is **** where I live.
Update
A couple of hours later, it was completely and utterly dead. I tried to press the power button and it turned on, it froze on the Huawei logo for like 3 minutes then it restarted again. It's acting really random right now, random restarts and then completely dead, then alive again...
Update #2:
I hard reset again and it's working pretty fine for now, I'll update again soon, but I strongly doubt that the problem is gone.

Pixel 3 "shutdown" problem

Picked up my phone off the charger today (1 week old 128g pixel 3) and it just shutdown. Almost like the battery died, but it was 100%.
Turned the phone back on, booted "normal", ran about 30 - 60 seconds and shut off again!
Turned on a 2nd time, actually started ringing immediately after boot, was able to complete a full phone call then it shut down after the call was completed.
Turned on a 3rd time, made a phone call - same behavior, lasted for the whole call then shutdown.
Tired safe mode - same thing.
Went to bootloader - seems to stay alive for a long time (~1 hour) - thinking it's not hardware... tried factory reset. Reboot phone and it makes it 30-60 seconds and shuts down!
Anyone else seeing MAJOR hardware issue like this?
Same problem for myself. Started yesterday morning. Phone was just went dead after using it a couple of minutes. Called Google Fi support and getting a new phone. Phone was dead to the world. The PC would not recognize the phone when plugged in. After the phone sat for several hours I got it to power on. Started that bootloop thing so I tried restoring using twrp. The was a no-go. Then reflashed the stock image (with out the -w). No go as well. Unfortunately the phone went dead again before I could just overwrite the phone. Going to try again this morning if the phone powers on again. If not back to Google.
[UPDATE] Nuked the phone(flash-all with -w), and reloaded the Nov. firmware. So far so good. Currently going through (slowly since my WiFi is slow as molasses) the updates and restore now.

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