CrDroid broke(?) my NFC on Redmi Note 8t - Redmi Note 8 Questions & Answers

Hi.
I have been using CrDroid custom ROM for a few months. Yesterday I decied to switch to xiaomi.eu MIUI 12. Installation went smooth and everything seemed fine until I tried to turn NFC on through the quick menu. I clicked the button and it turned blue, but NFC icon didn't appear in the status bar. I then tried to turn it off, but clicking the button did nothing, it stayed blue. I couldn't change any NFC related settings in settings, they were all grayed out. I then decided to flash xiaomi.eu MIUI11, which worked ok for me when I tested it a few months ago, now NFC doesn't work there too. Same issue. I tried to flash stock MIUI11 through MiFlashTool, but NFC doesn't work there too! I went back to crDroid and NFC works there, so the issue isn't hardware related. I also tried Paranoid Android, but the NFC is now broken there too (it used to work)! Does anyone have an idea on how to fix NFC? I don't know what crDriod did, but it seems it screwed something up big time. I really need NFC in my phone. Any help would be appeiciated! Thanks.

Behenate said:
Hi.
I have been using CrDroid custom ROM for a few months. Yesterday I decied to switch to xiaomi.eu MIUI 12. Installation went smooth and everything seemed fine until I tried to turn NFC on through the quick menu. I clicked the button and it turned blue, but NFC icon didn't appear in the status bar. I then tried to turn it off, but clicking the button did nothing, it stayed blue. I couldn't change any NFC related settings in settings, they were all grayed out. I then decided to flash xiaomi.eu MIUI11, which worked ok for me when I tested it a few months ago, now NFC doesn't work there too. Same issue. I tried to flash stock MIUI11 through MiFlashTool, but NFC doesn't work there too! I went back to crDroid and NFC works there, so the issue isn't hardware related. I also tried Paranoid Android, but the NFC is now broken there too (it used to work)! Does anyone have an idea on how to fix NFC? I don't know what crDriod did, but it seems it screwed something up big time. I really need NFC in my phone. Any help would be appeiciated! Thanks.
Click to expand...
Click to collapse
it's very strange thing, normally clean flashing through fastboot mode fixed every issues,
are you sure you flashed firmware for 8t not for 8

Redmi 4A abdal said:
it's very strange thing, normally clean flashing through fastboot mode fixed every issues,
are you sure you flashed firmware for 8t not for 8
Click to expand...
Click to collapse
Yes i'm sure I flashed willow version. I was suprised when flashing through fastboot didn't fix it too!

Ok I fixed it! You can find the full thread on xiaomi.eu forum if you search for "NFC doesn't work on MIUI, Redmi note 8t" but basically:
-Wipe everything except USB, SDCard
-Format Data
-Reboot Recovery
-Flash PA4 - can't switch NFC in the OS
-Reboot into TWRP, flash the NFC fix zip and MIUI11 (NOT MIUI12) firmware (I'm not sure which one actually fixed NFC)
-Reboot into PA4 - now NFC works
-Dirty Flash MIUI.eu 12 over PA4
-Format Data
-NFC can be now switched, when I touch the back of the phone with my card it does the "Can't recognize NFC" sound so it definitely works!
-Now you could probably do a clean flash and still have the NFC working, but everything seems fine after the dirty flash so I see no reason not to do it unless you start getting battery drain issues or something.

NFC fix file:
https://forum.xda-developers.com/attachment.php?attachmentid=5118065&d=1602959568

Behenate said:
Hi.
I have been using CrDroid custom ROM for a few months. Yesterday I decied to switch to xiaomi.eu MIUI 12. Installation went smooth and everything seemed fine until I tried to turn NFC on through the quick menu. I clicked the button and it turned blue, but NFC icon didn't appear in the status bar. I then tried to turn it off, but clicking the button did nothing, it stayed blue. I couldn't change any NFC related settings in settings, they were all grayed out. I then decided to flash xiaomi.eu MIUI11, which worked ok for me when I tested it a few months ago, now NFC doesn't work there too. Same issue. I tried to flash stock MIUI11 through MiFlashTool, but NFC doesn't work there too! I went back to crDroid and NFC works there, so the issue isn't hardware related. I also tried Paranoid Android, but the NFC is now broken there too (it used to work)! Does anyone have an idea on how to fix NFC? I don't know what crDriod did, but it seems it screwed something up big time. I really need NFC in my phone. Any help would be appeiciated! Thanks.
Click to expand...
Click to collapse
i think flashing the latest vendor will fix it, but since you did then good

I followed your guide, but unformately, not working nfc.
I have my own vendor backup from miui11 and not working also
I tried miui11 then miui12 firmware.
Edit:
Big thank You
My nfc started working in miui. It is something with firmware but I also flashed nfc fix.

Related

Fingerprint Scanner doesn't work after reboot

After restarting my Mi5s the fingerprint scanner doesn't work anymore. The same issue appears when I put the phone off and I put it on a day later (I like to put the phone off while sleeping).
I know that the first time after restarting the fingerprint doesn't work by Android default. However, it also doesn't work thereafter. When I remove the fingerprints in settings and add new ones, it works again. Does anyone have the same issue and a possible solution?
Not having this issue. Which ROM version do you have installed?
I use the xiaomi.eu stable rom.
Ah ok, custom ROM then. Please ask in xiaomi.eu forum, they might know more.
donderdag said:
After restarting my Mi5s the fingerprint scanner doesn't work anymore. The same issue appears when I put the phone off and I put it on a day later (I like to put the phone off while sleeping).
I know that the first time after restarting the fingerprint doesn't work by Android default. However, it also doesn't work thereafter. When I remove the fingerprints in settings and add new ones, it works again. Does anyone have the same issue and a possible solution?
Click to expand...
Click to collapse
I had same problem here after I encrypted my device with 'encrypt device using lock screen'. When I switched encryption off the problem was solved. So seems a software problem. I am working with most recent stable Global Rom (8.0.3.0). Hope it will be solved in next release. China stable was released a few days ago.
had that problem with miui.eu , it was an outdated version of supersu and twrp, updated them and problem solved.

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...

sim and Wi-Fi don't work in pixel experience. redmi note 8

greetings to all. I decided to try to put pixel experience on my device (I had no dealings with custom firmware before). I put the plus version on android 12 first, as a result, the phone stopped detecting SIM cards and finding wifi (wifi is turned on, but it does not find the network). after that, I tried to install an earlier version of this firmware; the standard version of the 12 android (without plus) and the version on the 11 android - the same problem everywhere. moreover, on both versions of android 12, the data transfer icon was not displayed (just an oval with an arrow, without an antenna icon - sit and think what a button). I put MIUI back and everything works fine.
How to solve the problem, and finally feel the PE?
754575457 said:
greetings to all. I decided to try to put pixel experience on my device (I had no dealings with custom firmware before). I put the plus version on android 12 first, as a result, the phone stopped detecting SIM cards and finding wifi (wifi is turned on, but it does not find the network). after that, I tried to install an earlier version of this firmware; the standard version of the 12 android (without plus) and the version on the 11 android - the same problem everywhere. moreover, on both versions of android 12, the data transfer icon was not displayed (just an oval with an arrow, without an antenna icon - sit and think what a button). I put MIUI back and everything works fine.
How to solve the problem, and finally feel the PE?
Click to expand...
Click to collapse
PE is trash
if camera also does not work then it may be persist problem : Fix sensor
choose a good rom
Install lastest rom will fix this install miui 12.5 in your phone then install pe

NFC does not work on stock android 9/10 ROM

Someone may have encountered the fact that for some reason NFC tags are not read on the stock ROM version of android 9/10. On these versions of NFC, the toggle switch is not activated and disappears from the settings menu item. It happened after flashing from android 10 to custom ROM (I don't remember exactly what the problems started with, I tried lingeage OS, awakeOS, omnirom). Most likely, this happened after the OMNIROM ROM, because after it, NFC stopped working on custom ROM'S but it works properly on OMNIROM. Also, NFC tags are read and tested through SONY engineering menu on stock android 8.
Fifiks said:
Someone may have encountered the fact that for some reason NFC tags are not read on the stock ROM version of android 9/10. On these versions of NFC, the toggle switch is not activated and disappears from the settings menu item. It happened after flashing from android 10 to custom ROM (I don't remember exactly what the problems started with, I tried lingeage OS, awakeOS, omnirom). Most likely, this happened after the OMNIROM ROM, because after it, NFC stopped working on custom ROM'S but it works properly on OMNIROM. Also, NFC tags are read and tested through SONY engineering menu on stock android 8.
Click to expand...
Click to collapse
Hello, I have the same problem here, I went from stock OS to Lineage OS 19 and back to stock android 10, and the NFC is not working. Sometimes it appears under parameters, but quite often I have the same disappearance that shows your screenshot.
And NFC crashes in background upon booting the phone - a popup window would show if you activate the appropriate developper option.
Since I never really used NFC I can't really say since when it stopped working or what could be the probable cause... but it would be nice to have it back anyway, if anybody knows how to fix NFC please tell

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