Develop Bugs

Screen flickers randomly (help please?)

Hey guys,
My screen keeps turning on randomly, and keeps turning off and on while using my phone
I was on havoc OS and it happened when I moved to Nitrogen OS. I tried clean installing multiple ROMs and now on AEX. I tried stock and vantom kernels. Nothing seems to be working. Any idea what's wrong and how to fix it?
P.S. its not a hardware issue. And it tends to happen more when I use heavy applications like pubg.
Would really appreciate the help x

Anyone?

branndonn1 said:
Anyone?
Click to expand...
Click to collapse
If its happening on all ROMs even miui then it is a hardware problem
Use miflash to clean install miui without locking the BL to check.
If it still flickers then its a loose cable or something similar failing

Dobsgw said:
If its happening on all ROMs even miui then it is a hardware problem
Use miflash to clean install miui without locking the BL to check.
If it still flickers then its a loose cable or something similar failing
Click to expand...
Click to collapse
Hey man, I tried that and still have the issue. Thanks though mate. I'll take it to the service center and see what happens.

[Q] Problem with my phone. Software or motherboard?

Hello,
I have a problem with my Mi 9 SE.
The display often flashes white. After blocking too.
I restart sometimes.
About phone:
MIUI Global 11.0.4
11.0.4.0(PFBMIXM)
Android version: 9 PKQ1.181121.001
Kernel: 4.9.112-perf-gf6a09ff
Anyone met with a similar problem?
Problem with software or motherboard?

master522 said:
Hello,
I have a problem with my Mi 9 SE.
The display often flashes white. After blocking too.
I restart sometimes.
About phone:
MIUI Global 11.0.4
11.0.4.0(PFBMIXM)
Android version: 9 PKQ1.181121.001
Kernel: 4.9.112-perf-gf6a09ff
Anyone met with a similar problem?
Problem with software or motherboard?
Click to expand...
Click to collapse
Hi
It seems to be a hardware problem. You can try a factory reset or another ROM and check if you still have it, but it appears to be some HW issue

Cosmox_ said:
Hi
It seems to be a hardware problem. You can try a factory reset or another ROM and check if you still have it, but it appears to be some HW issue
Click to expand...
Click to collapse
I did factory reset from recovery menu.
Did not help.
Other ROM? I have to wait a week to unlock bootloader...
Two days ago there was an update to MIUI 11.0.6.0.
I have restored to factory settings.
Works for now.
Interestingly, the update didn't helpit's. Only fine after the reset. Was some application guilty?
Or... with increased use of resources comes a hardware problem.

Hmm yes that's interesting
At least now the phone works as expected ?
If you ever encounter the bug again, try caching a logcat we can then discriminate the root cause.

I have the same problem, restart few times works sometimes

Cosmox_ said:
Hmm yes that's interesting
At least now the phone works as expected ?
If you ever encounter the bug again, try caching a logcat we can then discriminate the root cause.
Click to expand...
Click to collapse
The issue still exists. Just after factory reset the problem occurs less often.
In my case it is rather a hardware problem.
I will change the software to unofficial tomorrow.
Thank you so much i didn't know about the logcat.

No problem!
You can also try disabling some options and maybe find the culprit, do you have double tape to wake or face unlock enabled enabled?

These options are disabled. Hardware damage.
Thanks.

master522 said:
These options are disabled. Hardware damage.
Thanks.
Click to expand...
Click to collapse
Do you know on which page I can get the hardware replacement?

Question Freezes and crashes with custom ROMs

Hey,
I have some minor and major lag issues (freezes and crashes), sometimes I even have to force restart the phone.
It happens with most of the customs ROMs that I have tried (HavocOS, ShapeshiftOS, Pixel Extended, etc.) but not every ROM (the only ones where it doesn't occur are ArrowOS and xiaomi.eu I think)
Even after flashing multiple times (mi flash + Clean flash), it happens with multiple apps, so I don't think it's apps related (maybe magisk or TWRP), and not ROM too.
Is anyone facing those issues, or is there any solution or thing that I can do to solve this problem.
Also, I'm having issues collecting logs because it is happening randomly and when it happens the log app I use crashes, but it is always the same issue (ANR Input dispatching timed out (...))
I have one set of logs where I got freeze (5-10 seconds) multiples times, I will attach the file.
I can provide anything to help solve this annoying problem.
Thanks in advance

faced that problem too with app Greenify (xiaomi.eu rom + Twrp Alpha +Magisk 23)

Still a pain to have to deal with that, is anyone here ready to help ?

CRNO said:
faced that problem too with app Greenify (xiaomi.eu rom + Twrp Alpha +Magisk 23)
Click to expand...
Click to collapse
Don't use it. That and Hyperion were on my stock Note 10+ that got boot looped twice, back to back, grrrrrr. Removed both on the 3rd load and still running that load over a year latter.
When you're seeing that kind of behavior you're just one reboot away from a boot loop

Havoc os was the only ROM with freeze's after the phone went in sleep mode, apps like YouTube freezing then. But on the other roms I didn't had that and i tested everyone on havoc I have installed the ROM 2 times with different firmwares but always a freezing of apps after deep sleep

r3sp said:
Havoc os was the only ROM with freeze's after the phone went in sleep mode, apps like YouTube freezing then. But on the other roms I didn't had that and i tested everyone on havoc I have installed the ROM 2 times with different firmwares but always a freezing of apps after deep sleep
Click to expand...
Click to collapse
Too bad I have to install others ROMs, I much prefer Havoc. But weird that it also appears with other ROMs

I have been having similar issues. I'm from the US and it happens often when I am using mobile data.

Shmi117 said:
I have been having similar issues. I'm from the US and it happens often when I am using mobile data.
Click to expand...
Click to collapse
+1 same here
All pixel based custom roms crash while I'm on mobile data. I think it's a modem issue.

NonoBow85 said:
Too bad I have to install others ROMs, I much prefer Havoc. But weird that it also appears with other ROMs
Click to expand...
Click to collapse
I have been using havoc latest build for close to 2 weeks. I didnt encounter any freeze though

aravreddy2231 said:
+1 same here
All pixel based custom roms crash while I'm on mobile data. I think it's a modem issue.
Click to expand...
Click to collapse
Same here in BC. I have found it seems to happen with LTE with ArrowOS (I haven't tried any other custom ROMs). I haven't had the problem occur at all on H+.

If you are rooted, check /sys/fs/pstore/console-ramoops, or dump logcat/bugreport if you aren't rooted, and search for "crash". On my device, it says that my modem crashes which causes every CPU core to stop and reboot.

Shmi117 said:
If you are rooted, check /sys/fs/pstore/console-ramoops, or dump logcat/bugreport if you aren't rooted, and search for "crash". On my device, it says that my modem crashes which causes every CPU core to stop and reboot.
Click to expand...
Click to collapse
I will try that later, thanks

I got that if it can helps

After some research, I think the problem is caused by @manuelbianco tree for alioth, that is widely used and correspond to which ROMs I have problem with.
Still doing some research on how to solve this because it removes ROMs that would like to use.
If anyone knows anything, I would like to hear it.

NonoBow85 said:
After some research, I think the problem is caused by @manuelbianco tree for alioth, that is widely used and correspond to which ROMs I have problem with.
Still doing some research on how to solve this because it removes ROMs that would like to use.
If anyone knows anything, I would like to hear it.
Click to expand...
Click to collapse
yes. That tree has some instabilities. Unfortunately most alioth developers are using that tree. You can try hentaios and arrowos. They are not using that tree

kmykoh said:
yes. That tree has some instabilities. Unfortunately most alioth developers are using that tree. You can try hentaios and arrowos. They are not using that tree
Click to expand...
Click to collapse
Yes I know, but I in my opinion there are not the best, hope it will be fixed soon enough.

i think i finally found a solution, if you have magisk installed, i reccomend uninstalling it and giving up root, because i did it and the freezing stopped, maybe trying an older model or just giving up magisk overall will stop the freezing, but i did remove magisk and the freezing stopped, completely. also, remove any custom kernels to prevent more freezes and other shenanigans from happening, cheers.

I am facing the same issue for a long time now. Others with same device(Poco X3) didn't have any problem, it's just me and it sucks!!!

himanshu1081 said:
I am facing the same issue for a long time now. Others with same device(Poco X3) didn't have any problem, it's just me and it sucks!!!
Click to expand...
Click to collapse
This section is for Poco F3.

Question poco f3, wifi only working for 1 min after factory reset and not after.

works fine during setup then vanishes and the wifi button doesn't do anything afterwards. is it hardware or software related?
weird thing i noticed is that any wifi related setting, will make the settings crash and not respond...
miui global 12.5.8 stable, Android version: 11 RKQ1.200826.002, security update: 2002-01-01
dunno how to explain this, but this is what it looks like when I try to do anything in the settings (google drive video)
I have also looked at this thread where it seems similar to my problem, but could not find a solution.
MIUI 12.5 wifi issues
Hi, today I received the EU update to MIUI 12.5 - 12.5.1.0(RFAEUXM) . However, now my Mi 9 can't connect to wireless networks. I already tried restore the network defaults and then the factory reset without success. Any ideas? The behavior is - I...
forum.xda-developers.com
edit: seems like i have to unlock the bootloader to install a different rom, will update in a week

Sounds like a major issue , after watching the video, 2 things I would try remove sim reboot then try, of still fails the ROM must be corrupt , I would reinstall/flash sounds like you tried a factory reset so thats what I would do

thank you for your response. I did remove the sim and factory reset but no change. Can I reeinstall without having the phone unlocked? or is that only possible with an unlocked phone and the fastboot thing?
edit: found out how to local update rom, going to that and see how it goes.
edit2: installed a new rom but the issue still persist.

21sep said:
thank you for your response. I did remove the sim and factory reset but no change. Can I reeinstall without having the phone unlocked? or is that only possible with an unlocked phone and the fastboot thing?
edit: found out how to local update rom, going to that and see how it goes.
edit2: installed a new rom but the issue still persist.
Click to expand...
Click to collapse
you meant to say you just did a update? you will need unlocked bootloader I do believe but not positive if your going from stock to stock

I installed MIUI 13.0.3 with this method https://c.mi.com/oc/miuidownload/detail?guide=1 but the same problem with the WIFI persist. If it was an software issue it should have fixed it right? so I'm thinking that it might be a hardware issue instead.

21sep said:
I installed MIUI 13.0.3 with this method https://c.mi.com/oc/miuidownload/detail?guide=1 but the same problem with the WIFI persist. If it was an software issue it should have fixed it right? so I'm thinking that it might be a hardware issue instead.
Click to expand...
Click to collapse
Did you mess up with any wifi or persist thingy?

update: I unlocked the phone and installed different rom versions with MiFlash.
I installed everything step by step following this guide for installing via fastboot https://c.mi.com/thread-1857937-1-0.html.
alioth_global_images_V13.0.2.0.SKHMIXM_20220314.0000.00_12.0_global: same problem
alioth_eea_global_images_V12.5.8.0.RKHEUXM_20220210.0000.00_11.0_eea: put WiFi settings on static
worked long enough to fully setup and install some apps than it went full retard. (longest working wifi connection yet)
after a second restart, the wifi is compeltly gone now.
alioth_global_images_V12.5.6.0.RKHMIXM_20220210.0000.00_11.0_global: WiFi didn't work at all
alioth_eea_global_images_V12.5.3.0.RKHEUXM_20210706.0000.00_11.0_eea: WiFi worked for 2 minutes
I don't think i have any more roms to test out so maybe i will try a custom rom xd

try with custom roms

Question Poco F3 Signal issue both MIUI and custom roms

Hello everybody.
I have an issue with the Poco F3 regarding signal and networking.
After the last update to MIUI 12.5 and later MIUI 13, my phone was having issues making and receiving calls and also using mobile data.
Before those updates, I had no issues whatsoever.
I unlocked my bootloader and decided to try a custom rom, thinking it will solve this issue but nothing has changed.
I have "no service" in areas were many other phones (xiaomi and cheap ones at that etc) have at least 4g. Other times, while I do have service, I can't make or receive calls and even if I can, it's dropping after the first minute or so. Trying to use mobile data is a mess too, working rarely and most of the times I get that exclamation mark and cannot access the internet. It's starting to cause issues at work.
Note, that I use the phone with dual sims from different carriers and the issue is the same. I tried using only a single SIM thinking it might have something to do with dual sims but nothing.
I tried everything, from factory reset, to reseting network settings, airplane mode for 30seconds, custom roms, custom apns etc etc.
The sims work as they should on a poco m3 that I also own, but on the F3 the issue remains.
Now, the issue is much work with android 12, both with MIUI and custom rom (using PixelOS at the moment).
Do you think it is a hardware issue? Should I try an android 11 custom rom and see if the issue is fixed? Is there anything else I should try?
It's driving me crazy and since it's causing work related issues I am thinking of just getting a new phone at this point.
Thanks in advance.

crashpoum99 said:
Hello everybody.
I have an issue with the Poco F3 regarding signal and networking.
After the last update to MIUI 12.5 and later MIUI 13, my phone was having issues making and receiving calls and also using mobile data.
Before those updates, I had no issues whatsoever.
I unlocked my bootloader and decided to try a custom rom, thinking it will solve this issue but nothing has changed.
I have "no service" in areas were many other phones (xiaomi and cheap ones at that etc) have at least 4g. Other times, while I do have service, I can't make or receive calls and even if I can, it's dropping after the first minute or so. Trying to use mobile data is a mess too, working rarely and most of the times I get that exclamation mark and cannot access the internet. It's starting to cause issues at work.
Note, that I use the phone with dual sims from different carriers and the issue is the same. I tried using only a single SIM thinking it might have something to do with dual sims but nothing.
I tried everything, from factory reset, to reseting network settings, airplane mode for 30seconds, custom roms, custom apns etc etc.
The sims work as they should on a poco m3 that I also own, but on the F3 the issue remains.
Now, the issue is much work with android 12, both with MIUI and custom rom (using PixelOS at the moment).
Do you think it is a hardware issue? Should I try an android 11 custom rom and see if the issue is fixed? Is there anything else I should try?
It's driving me crazy and since it's causing work related issues I am thinking of just getting a new phone at this point.
Thanks in advance.
Click to expand...
Click to collapse
Rollback miui first to any android 11 version, see if the issue remains.
Then if you want you can flash custom roms and such... Your firmware got updated to android 12 when you upgraded miui , installing custom ROM won't downgrade it that's why you want to rollback miui

Thank you for your reply.
I need some time to do this proccess since I am practically 24/7 on call, but I will surely give it a shot when I get the chance.
Just a question though. Is it something common with this phone? A quick google search shows it happens with android 12 on the oneplus phones, but I got nothing for the poco f3.
Some time ago, with a similar issue, all I had to do was flash a kernel and it got fixed. Do you think there is a chance it is kernel related?

crashpoum99 said:
Thank you for your reply.
I need some time to do this proccess since I am practically 24/7 on call, but I will surely give it a shot when I get the chance.
Just a question though. Is it something common with this phone? A quick google search shows it happens with android 12 on the oneplus phones, but I got nothing for the poco f3.
Some time ago, with a similar issue, all I had to do was flash a kernel and it got fixed. Do you think there is a chance it is kernel related?
Click to expand...
Click to collapse
No idea... I don't think kernel houses firmware components tho , they live in their own separate partition

You can use DSU Sideloader. This allows you to boot into Android 11 and check Cell-connectivity & Wi-Fi, without touching your Main OS.
Basically, you download the Android 11 GSI, extract the "system.img", set up the app (either through Root or ADB), select "system.img" and Install.
That app utilizes Android's DSU feature, but lets you install any GSI you feed it.
Android has a built-in 'DSU Loader' in Developer Options, but it only lets you install the Android 12 and Android 13 Beta GSI, not older ones like Android 11. ^^
Note: GSI's don't work on Xiaomi.eu Custom ROM. May also not work on other Custom ROMs. ^^

cyanGalaxy said:
You can use DSU Sideloader. This allows you to boot into Android 11 and check Cell-connectivity & Wi-Fi, without touching your Main OS.
Basically, you download the Android 11 GSI, extract the "system.img", set up the app (either through Root or ADB), select "system.img" and Install.
That app utilizes Android's DSU feature, but lets you install any GSI you feed it.
Android has a built-in 'DSU Loader' in Developer Options, but it only lets you install the Android 12 and Android 13 Beta GSI, not older ones like Android 11. ^^
Note: GSI's don't work on Xiaomi.eu Custom ROM. May also not work on other Custom ROMs. ^^
Click to expand...
Click to collapse
That's a cool feature and thank you so much for the reply.
However, when trying it, I get stuck on the Poco logo and then straight to recovery. So I guess it doesn't work on the rom I am using.
Rebooting back to system from TWRP works as it should, so there are no further issues.
Tried the two official images from google, and the result is exactly the same.

crashpoum99 said:
That's a cool feature and thank you so much for the reply.
However, when trying it, I get stuck on the Poco logo and then straight to recovery. So I guess it doesn't work on the rom I am using.
Rebooting back to system from TWRP works as it should, so there are no further issues.
Tried the two official images from google, and the result is exactly the same.
Click to expand...
Click to collapse
Hm, I don't know.
You just need an unlocked bootloader (in most cases apparently).
When it didn't work for me, it was solely because of the Custom ROM Xiaomi.eu. Doesn't work at all there.
You're on Stock MIUI, I think, and it should work there normally. For me it does.

cyanGalaxy said:
Hm, I don't know.
You just need an unlocked bootloader (in most cases apparently).
When it didn't work for me, it was solely because of the Custom ROM Xiaomi.eu. Doesn't work at all there.
You're on Stock MIUI, I think, and it should work there normally. For me it does.
Click to expand...
Click to collapse
That's all true I guess.
But as I stated, I am on the PixelOS custom rom at the moment.
Just to see if the issue was MIUI specific, turning out it isn't.
I will return to MIUI 12.5 when I get the chance regardless.

crashpoum99 said:
That's all true I guess.
But as I stated, I am on the PixelOS custom rom at the moment.
Just to see if the issue was MIUI specific, turning out it isn't.
I will return to MIUI 12.5 when I get the chance regardless.
Click to expand...
Click to collapse
Did you ever get the signal problem solved?

narmak said:
Did you ever get the signal problem solved?
Click to expand...
Click to collapse
No, not at all unfortunately. Tried everything, even downgrading and switching around custom roms.
I figure it's a hardware issue and have since swapped my sim to my older Mi 9 Lite and use that device only for calls and data hotspot.
If, however, you have some solution to propose I will gladly give it a shot!

Hi, I also got myself the Poco F3 in June 2022.
Some days ago (~end of September) it started having little to no signal in places that I usually had good signal coverage.
I use 2 SIMs. I tried any combination of SIM as well as single SIMs.
Signal is bad and even if the indicator shows signal with severals bars, calls are not going out nor can I receive calls.
MIUI is
I thought of resetting the phone but after reading this thread I prefer to return the phone as long as it is still stock rather than wasting my time.
There are several posts about this issue on Amazon as well.

Same thing happening to me. This is a good smartphone but sadly, it wasn't just me that is having the same issue.

Same here. Simcard works fine in my Mi 8 and iPhone 7. Went back from LineageOS to MIUI, but MIUI tells me the Simcard "can't be activated" and doesnt get signal at all. With my Mi 8 i have 4G coverage.

I do have the exact same problem.
Tried different roms A11+A12, MIUI+Custom, even opened it up to check if the antenna cable was loose.
Has anybody fixed that problem?

did you manage to fix it? I had the same problem in pixelOs and now I want to install pixel experience but it worries me

gurripato said:
did you manage to fix it? I had the same problem in pixelOs and now I want to install pixel experience but it worries me
Click to expand...
Click to collapse
i was facing the same problem, it was solved when i flashed Xiaomi.eu 13.0.6.0 via fastboot.
its working perfectly since that, at least in xiaomi.eu. I didnt try any other rom.

Xblade234 said:
i was facing the same problem, it was solved when i flashed Xiaomi.eu 13.0.6.0 via fastboot.
its working perfectly since that, at least in xiaomi.eu. I didnt try any other rom.
Click to expand...
Click to collapse
Thanks for the hint. I will try it myself and report then...

I'm on the latest xiaomi.eu weekly beta and I do sometimes have a signal, but it's really unstable.

Xblade234 said:
i was facing the same problem, it was solved when i flashed Xiaomi.eu 13.0.6.0 via fastboot.
its working perfectly since that, at least in xiaomi.eu. I didnt try any other rom.
Click to expand...
Click to collapse
Are you using 5G or LTE data plan?

Xblade234 said:
i was facing the same problem, it was solved when i flashed Xiaomi.eu 13.0.6.0 via fastboot.
its working perfectly since that, at least in xiaomi.eu. I didnt try any other rom.
Click to expand...
Click to collapse
Problem is still there...