Sony Xperia XZ3 H9436 keeps rebooting with android 10, want android 9. - Sony Xperia XZ3 Questions & Answers

How do i downgrade? I only have a X86 computer and i guess i need a x64? It was bought from a one who dropped the phone so only the backside cracked. It restarts after some minutes in normal mode with android 10 and in safe mode it works fine. It also seems to work without restart if i don't type in the pin and login. I have tried a factory reset but it is the same. Can anything have gone wrong with the android version? I also see the video icon is gone next to the album. Was is not on android 10?

I think you need a special cable to tranfser to? i guess a one like this is to soft thin? https://www.tradera.com/item/260702/557624242/usb-a-till-usb-c-kabel-2-meter-mobilladdare-android

It also seems to work fine in flight mode, i could download Google play updates for over 1h. In normal mode it seems to restart after some minutes.

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Samsung Galaxy Note 5 restarts when I connect to side sync

Hello everyone
I just wanted to ask if there's any solution to what I'm facing right now.
Basically, every time I connect my phone to PC to mirror the screen, the phone restarts. That includes smart view and side sync screen sharing. I have tried re-installing side sync in my PC, in my phone, as well as factory reset my Phone and formatting my PC (one by one).
Current Android version, according to my phone, is Android 7.0
It used to work around 3 months ago, but now it just decides to restart every time I try to mirror my phone screen to my PC.
Thank you for your time~
I have the same problem!

Android Oreo, 8 for Note8 Daily Crash

Every morning since upgrading to Oreo earlier this week
Xfinity Mobile
Note8 USA
System maintenance
Android
system_server using 11.39% CPU
No choice but to click fix and reboot
Factory reset. That doesn't work then call Samsung. I haven't heard anymore with this issue yet.
Same issue with my Note 8 after Oreo update. This is with T-Mobile network. I just swipe the alert away. I will do a factory reset later to see if it makes a different.
The same here
After the oreo update everything works fine unless the multiple windows on split screen mode. Every time I try to open two apps in multiple windows especially YouTube and chrome together the phone lags till shut down. Unfortunately I've made a hard reset but nothing change.
akaavtheg said:
After the oreo update everything works fine unless the multiple windows on split screen mode. Every time I try to open two apps in multiple windows especially YouTube and chrome together the phone lags till shut down. Unfortunately I've made a hard reset but nothing change.
Click to expand...
Click to collapse
I've had this exact issue, it happened once or twice can't recall but I thought it was just my phone acting weird, I came straight from nougat via Odin Oreo Flash, so the factory reset wouldn't apply to me so it might be the actual Oreo update since I also have a T-Mobile Note 8
Crashing...
As fast as I open 2 apps simultaneously my phone crashes. It totally freezes and it is very hard to reboot it. The side panel stops to work within 3-4 minutes when I start up my phone. When I'm starting it, it also says that I have changed my SIM card and that I need to reboot again. .
I have an unlocked nordic version with the carrier "Comviq" in Sweden. This is not fun.
NickandM said:
As fast as I open 2 apps simultaneously my phone crashes. It totally freezes and it is very hard to reboot it. The side panel stops to work within 3-4 minutes when I start up my phone. When I'm starting it, it also says that I have changed my SIM card and that I need to reboot again. .
I have an unlocked nordic version with the carrier "Comviq" in Sweden. This is not fun.
Click to expand...
Click to collapse
That doesn't sound right...I would backup what you need and try a factory reset.
sefrcoko said:
That doesn't sound right...I would backup what you need and try a factory reset.
Click to expand...
Click to collapse
Yep.
I'll think I'm going to do that.
Everything started 20 minutes after the Oreo update, I never had any problems before it.

Samsung Galaxy A71 died after updating to Android 11

Ok, so here is to explain what happened, so you can have a clue what am I talking about.
I bought Galaxy A71 a month ago (give or take), so out of the box it had Android 10. The phone was working flawlessly. Battery life awesome, pictures from camera great, etc. So, few days ago on March 26, 2021, an update to Android 11 came in. I am a tech nerd, I know about phones, rooting, flashing, etc.
So, I saw that I have around 78-80% of the battery so it was enough to download and install Android 11.
Downloading and installing and optimizing apps after went smooth as silk. I usually soft restarting my device after any software update, so I did that after the installation of Android 11 was entirely finished.
But, this is what happen when I restart my phone the normal way. I press and hold the power button, the dialog of Power off, Reset and Airplane mode came out, tapped twice the reset button and phone went restarting and just.... died. I remember that when I soft restarted my phone, the battery was on 72%. So I tried any trick in the books to turn on my phone again like combinations of pressing buttons, then with USB cable, charger, etc, but nothing was responsive. It's like the phone was clinically dead.
My phone is still under warranty and I will probably end up taking it to the T-mobile store, but the point of this thread is to inform others of the situation like mine and see if someone else had the same problem?
Maybe someone will post a solution what to do in situations like this?
If I find any solution, I will update this post with all the details.
You probably done it.But have you plugged it into A computer to see if the computer can detected it?
Essex_Hal said:
You probably done it.But have you plugged it into A computer to see if the computer can detected it?
Click to expand...
Click to collapse
Yes i did, nothing shows in Device Manager. As I said, I tried every possible trick to wake the phone up, but it was unsuccessful.
I end up taking it to the carrier store cuz it is still under warranty. They told me if they can't fix it, they'll probably give me a new one or to wait for Galaxy A72 To arrive in 2 weeks. We'll see what happens.
BorisMKD said:
Yes i did, nothing shows in Device Manager. As I said, I tried every possible trick to wake the phone up, but it was unsuccessful.
I end up taking it to the carrier store cuz it is still under warranty. They told me if they can't fix it, they'll probably give me a new one or to wait for Galaxy A72 To arrive in 2 weeks. We'll see what happens.
Click to expand...
Click to collapse
Least you still have A warranty to help you.
Good luck with it.Hope you don't lose your data if it's still on the phone.
Essex_Hal said:
Least you still have A warranty to help you.
Good luck with it.Hope you don't lose your data if it's still on the phone.
Click to expand...
Click to collapse
They fix it, it said it was software problem, got stuck on rebooting. I get it today (2 weeks later) and it worked. They managed to turn it on but without a factory reset, every app was there, every picture, video, contacts, call history, etc. I don't know how they did it, but they did. So when I got my phone back I tried to restart it normal way, long press of the power button, then tap Restart and again restart. The phone restart it without a problem. I was happy. Then later that day (2 hours ago when I'm writing this, I notice that always on display when i touch the phone screen will show up but doesn't switch off after 10 seconds (I set it up like that), instead it started to blink in intervals like i was touching the screen continuously. Then I did a deep soft reset. You know, when you press Volume down and Power button at the same time and.... got the same problem again. Phone is non functional, none combination of pressing buttons worked, just like i describe it in the OP. Just for information, I did the same on my previous phone Galaxy A7 2018 and never had this problem. I did it on this phone too, never had a problem. Then I remember it that on both phones when i do that and not having problems were running on Android 10. this phone now update it to Android 11 and that buttons combination is probably bricking the phone. It's just a thing I notice. So I am planning to call the official service that fixed the phone how did they do it, so maybe I can do it myself too. I don't want to wait for another 2 and a half weeks.
I am facing the same issue. And I think my warranty is out. Did you get to ask them how can you turn it on yourself!!
I would really appreciate some help here!
BorisMKD said:
Ok, so here is to explain what happened, so you can have a clue what am I talking about.
I bought Galaxy A71 a month ago (give or take), so out of the box it had Android 10. The phone was working flawlessly. Battery life awesome, pictures from camera great, etc. So, few days ago on March 26, 2021, an update to Android 11 came in. I am a tech nerd, I know about phones, rooting, flashing, etc.
So, I saw that I have around 78-80% of the battery so it was enough to download and install Android 11.
Downloading and installing and optimizing apps after went smooth as silk. I usually soft restarting my device after any software update, so I did that after the installation of Android 11 was entirely finished.
But, this is what happen when I restart my phone the normal way. I press and hold the power button, the dialog of Power off, Reset and Airplane mode came out, tapped twice the reset button and phone went restarting and just.... died. I remember that when I soft restarted my phone, the battery was on 72%. So I tried any trick in the books to turn on my phone again like combinations of pressing buttons, then with USB cable, charger, etc, but nothing was responsive. It's like the phone was clinically dead.
My phone is still under warranty and I will probably end up taking it to the T-mobile store, but the point of this thread is to inform others of the situation like mine and see if someone else had the same problem?
Maybe someone will post a solution what to do in situations like this?
If I find any solution, I will update this post with all the details.
Click to expand...
Click to collapse
have same issue too anyways to fix it?

Question HELP - Bootloop into Recovery without any attempt to flash

Hey, everybody!
I got a problem and hope to find help in here:
I recently got my Mi 11 Ultra (12GB / 512GB) from Tradingshenzhen. I bought an unmodified chinese version. After setting up my phone a few days ago the only things I did was changing the language of the Play Store using Morelocale 2 and deleting 2-3 (really unnecessary) apps using ADB. I didn't flash anything, didn't unlock the bootloader or didn't even start the unlocking process.
Everything worked fine for a 2-3 days now. Tonight I realized that the phone was off. As I was thinking that the battery was empty (there was a message a while before that the battery was low) I connected the phone to the charging cable and did a long press on the power button trying to turn it on. I put the phone aside and went to bed.
Today in the morning I took the phone and saw that it was obviously in some kind of menu I hadn't seen before. It says " Main Menu MIUI Recovery 5.0". There are three options: reboot, wipe data and connect to MiAssistant. When I am choosing "reboot" the phone tries to reboot but ends up in Recovery Mode again. And again. And again.
How is this possible? Anyone knows what happened here? As I said...I didn't flash any ROM or opened the bootloader.
Unfortunately there is one photo on the device that I need and haven't uploaded to any cloud yet.
Thanks in advance!
Can't see any other options that will work without losing that photo.....
Maybe an expert could help you but I'm not sure you will be able to reflash yourself without Data wipe....
Thanks!
I actually wiped the data and reset the phone. Works now again but the photo is lost.
There is a way to retrieve data from a board but it involves taking the whole phone apart , which is risky, and connecting a couple of wires to some points on the circuit board....
Not for the feint of heart and I haven't seen it done yet on this model but there's a YouTube video of it being done on an older xiaomi phone....

bq Aquaris M10 FHD - Screen stays black (but turned on) after flashing stock Android ROM

Hello!
I kind of "bricked" my tablet. Yesterday I wanted to try Ubuntu touch, installed it trough UBports, everything was easy. After some testing, I decided to go back to Android. The official website of by was shut down, bq doesn't exist anymore. I remember downloading Android images on their website years ago.
However, I was searching the web for copies of Android ROMs for this tablet and found two, one from 2016 (probably Android 5.1) and one from 2018 (Android 6.0, I guess).
I used the SP Flash Tool to flash the ROM onto the tablet. This process takes about three minutes and seems to work fine, I get the green check mark in the end. However, after flashing, the tablet turns on but stays in a blackscreen. First I thought it was bricked now, actually the Android system gets installed! After about ten minutes I can turn off the screen by pressing the Power button - and hear the lock sound! So it pretty much seems like the system gets installed successfully but maybe the screen driver doesn't work?
Plugging the tablet to my monitor through HDMI didn't give me an image either.
I once achieved to get to the recovery menu after a reboot - but again: only a black back-lit screen. I recognized this by randomly pressing buttons until the test sound played.
I tried flashing Ubuntu touch through the SP tool and then I get a fully working tablet, even though the OS itself is old and unusable. So... How do I install Android without the blackscreen? LineageOS or something else would be okay too.
Not sure if this is of any use to you still, but on this German forum there is a software repo that holds most software and firmwares from BQ: https://www.android-hilfe.de/forum/...itory-fuer-treiber-tools-firmware.964197.html.
That said, I have the same tablet and while it's getting kind of old, it's one of the very few tablets that has active development for a Linux operating system. I still have Android on it actually, but I plan to update it with Ubuntu in the near term. It seems stupid to just keep using an old Android version on it. I'm wondering what made you take the step to go back to Android after trying Ubuntu Touch?

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