MIUI Unable to connect to 5Ghz wifi - Xiaomi Mi 8 Questions & Answers

I´m running latest stable MIUI from XIAOMI.EU and I can´t connect to any 5Ghz WIFI.
I can see them in my wifi search and after I type the right password it can´t connect.
I have tried flashing other MIUI roms same problem.
It only works with AOSP roms.
Anny suggestions?

abdominazer said:
I´m running latest stable MIUI from XIAOMI.EU and I can´t connect to any 5Ghz WIFI.
I can see them in my wifi search and after I type the right password it can´t connect.
I have tried flashing other MIUI roms same problem.
It only works with AOSP roms.
Anny suggestions?
Click to expand...
Click to collapse
For it only to work with AOSP is strange, I am using Xiaomi.EU and do not have any issues with 5g.
My guess is that you are using AOSP ROMs with custom firmware.
If you want to switch to Xiaomi.EU try a full wipe, including formatting the userdata partition. Reboot to fastboot and flash fastboot flash an images rom which will restore the partitions back to the latest official firmware. You can find links to the images rom on my all in one persist thread, be sure to make a full twrp backup as I suggest be on the Op.
After flashing the rom, reflash, Twrp and then install Xiaomi.EU. I am certain that you will no longer have issues.

Thanks! Will give it a try.

So I formated data in TWRP, then flashed latest global with flashtool , flashed TWRP then formated data again. Flashed latest Xiaomi.EU stable.
Still same problem .
It finds the network and then I type the password, it says connecting and then nothing happens.

I've the same problem with latest global, my MI 8 is "untouched"
Edit:
Sorry, it was a router "problem", now solved

tsongming said:
For it only to work with AOSP is strange, I am using Xiaomi.EU and do not have any issues with 5g.
My guess is that you are using AOSP ROMs with custom firmware.
If you want to switch to Xiaomi.EU try a full wipe, including formatting the userdata partition. Reboot to fastboot and flash fastboot flash an images rom which will restore the partitions back to the latest official firmware. You can find links to the images rom on my all in one persist thread, be sure to make a full twrp backup as I suggest be on the Op.
After flashing the rom, reflash, Twrp and then install Xiaomi.EU. I am certain that you will no longer have issues.
Click to expand...
Click to collapse
Flashed latest global through miflash. Didn´t work.
Should I try to flash a different rom or what do you sugest?

[/COLOR]
abdominazer said:
Flashed latest global through miflash. Didn´t work.
Should I try to flash a different rom or what do you sugest?
Click to expand...
Click to collapse
It seems that you have ruled out the phone being the issue.
The post directly above your solve their issue by doing something to their router. I would assume that they simply unplugged the router for 15 seconds ( called power cycling) or maybe they even had to reset the router. ( Should not take more than 10 minutes) These types of issues happen all the time with phones, especially iphones. or if your router sets uses internal TCP/IP static addresses.
---------- Post added at 04:14 AM ---------- Previous post was at 04:13 AM ----------

tsongming said:
[/COLOR]
It seems that you have ruled out the phone being the issue.
The post directly above your solve their issue by doing something to their router. I would assume that they simply unplugged the router for 15 seconds ( called power cycling) or maybe they even had to reset the router. ( Should not take more than 10 minutes) These types of issues happen all the time with phones, especially iphones. or if your router sets uses internal TCP/IP static addresses.
---------- Post added at 04:14 AM ---------- Previous post was at 04:13 AM ----------
Click to expand...
Click to collapse
The problem occurs in different network home and work.
I think I found the issue, the region is fixed at KINA. I flashed some region fix and then it's possible to change, but it reverts to china on reboot.
Now how to fix this issue?

abdominazer said:
The problem occurs in different network home and work.
I think I found the issue, the region is fixed at KINA. I flashed some region fix and then it's possible to change, but it reverts to china on reboot.
Now how to fix this issue?
Click to expand...
Click to collapse
That is really weird. Where did you get the region fix? Are you sure it's not outdated? All of those mods posted by Agimax are for Miui 10. That is unless he made new ones.
Use the network option ( see attached) The region option was removed from Xiaomi.Eu. However, they use the global devices radio drivers.

I'm having the same problem for a big while now. I think it was since MIUI 12 came to my redmi note 7.
I just can't connect to any 5Ghz connection and I know that it's not router-related.
I have never flashed any ROM.

Related

Redmi 2(8gb Indian version) VoLTE Support needed

Hello, I posted a previous thread saying theres no volte for redmi2.
The thing is i've tried almost every solution thats out there for enabling VoLTE. But still none of them works.
I've tried flashing Redmi2 Prime ROM(doesnt work) and even flashing other custom roms over it(still doesnt work).
I've tried flashing Volte Patches, Xiaomi Volte modems etc.
Ive tried installing Lineage OS firmware....and the ROM(ofcourse) yet to no avail
I got a suggestion to manually wipe all partitions...but i researched a bit and got to know it hardbricks your device(so thats gotta wait for a while)
So is my Phone a special snowflake among other Redmi2 or is it a problem in my SIM card? If so how do i know which one is at fault?
I know this post might not belong here...but i need a discussion on this one..because there might be other Redmi2 users out there facing the same problem....So if anyone has the same problem do say so in the replies...and we'll see together, which of the solution works by testing them
1)download Mi flash tool
http://en.miui.com/forum.php?mod=att...E5MTF8MzM2MTg0
2)
download fastboot rom redmi 2 prime global stable or china
http://bigota.d.miui.com/V8.1.3.0.LH...23ac47dab8.tgz
above is global stable link.
3) put your phone in fastboot mode, unzip the downloaded rom. (avoid spaces in between folder path/name eg "C:\New Folder\Extracted rom\...." is not allowed instead it should be like C:\New_Folder\Extracted_rom\.......)
4) open mi flashing tool see if your device is listed. refresh to see. select clean all (flash_all.bat) option from bottom of mi flashing tool.
5) click on flash, and let it boot.
you would be able to use VoLTE now in miui rom. if you want to change to any N based roms just flash twrp and clean install any rom.
I don't have any problems with redmi 2 prime rom. VoLte working flawlessly.

Xiaomi Mi 8 loses WiFi

Hi xda, I don't even know if this is the correct section.
I'm experiencing a problem with my Mi 8 in these days I've never had, my phone sometimes disconnects from WiFi and then he has difficulty reconnecting. The WiFi signal keeps staying on "obtaining IP address" and repeats again, so I have to switch to mobile data until my WiFi comes back. I'm on MIUI Global 11.0.3 Stable (QEAMIXM).
I tried to:
- restart the phone;
- reset the network settings;
- restarting the router-modem;
But the problem still remains.
I read that it may be that the modem router does not support the dynamic IP or MAC address of the new version of Android, but I'm not an expert.
If someone is facing the same problem or knows how to solve it I really appreciate the help.
Thanks in advance
I've been having the same problem.
Randomly disconnecting from Wifi and my network service.
Since the auto-update push to the latest version the problem has gotten worse. It occurs even more frequently and often doesn't connect to any network services.
I've tried removing the Sim cards, changing slots, only having in one at a time.
Crisgas98 said:
Hi xda, I don't even know if this is the correct section.
I'm experiencing a problem with my Mi 8 in these days I've never had, my phone sometimes disconnects from WiFi and then he has difficulty reconnecting. The WiFi signal keeps staying on "obtaining IP address" and repeats again, so I have to switch to mobile data until my WiFi comes back. I'm on MIUI Global 11.0.3 Stable (QEAMIXM).
I tried to:
- restart the phone;
- reset the network settings;
- restarting the router-modem;
But the problem still remains.
I read that it may be that the modem router does not support the dynamic IP or MAC address of the new version of Android, but I'm not an expert.
If someone is facing the same problem or knows how to solve it I really appreciate the help.
Thanks in advance
Click to expand...
Click to collapse
If you have always been on stock
Change the setting so that the phone uses its actual Mac address and not randomized
If you have used many different roms,
You may need to flash the fastboot version of the latest stable rom ( for your device : Global or Chinese) it restore your persist partition, and all other partitions.
resetting will not fix this issue and neither will flashing a recovery rom. it has to be a fastboot rom.
Do not flash it unless your device is linked to your own personal Mi Cloud account, and the built in flashall batch command completely wipe your device. be sure to un select relock bootloader if using Mi-Flash.
Never flash any persist images that you may find on XDA threads.
Some of those posts include links to personal recovery persist backups . Those backed up images are hardware linked to individual devices, and flashing one of those files will cause permanent issues..
tsongming said:
If you have always been on stock
Change the setting so that the phone uses its actual Mac address and not randomized
If you have used many different roms,
You may need to flash the fastboot version of the latest stable rom ( for your device : Global or Chinese) it restore your persist partition, and all other partitions.
resetting will not fix this issue and neither will flashing a recovery rom. it has to be a fastboot rom.
Do not flash it unless your device is linked to your own personal Mi Cloud account, and the built in flashall batch command completely wipe your device. be sure to un select relock bootloader if using Mi-Flash.
Never flash any persist images that you may find on XDA threads.
Some of those posts include links to personal recovery persist backups . Those backed up images are hardware linked to individual devices, and flashing one of those files will cause permanent issues..
Click to expand...
Click to collapse
I have always been with the Global stable rom. Where do I change the MAC address?
Crisgas98 said:
I have always been with the Global stable rom. Where do I change the MAC address?
Click to expand...
Click to collapse
I am not currently using a Miui rom, because I wanted to test that my battery is truly going bad ( It is) So I will have to give you the approximate location. If I am remembering correctly it's in network settings > advanced options > privacy
If you dont see it, download the app called Hidden Settings for MIUI and you should be able to change it to use the actual Mac address.
Crisgas98 said:
Hi xda, I don't even know if this is the correct section.
I'm experiencing a problem with my Mi 8 in these days I've never had, my phone sometimes disconnects from WiFi and then he has difficulty reconnecting. The WiFi signal keeps staying on "obtaining IP address" and repeats again, so I have to switch to mobile data until my WiFi comes back. I'm on MIUI Global 11.0.3 Stable (QEAMIXM).
I tried to:
- restart the phone;
- reset the network settings;
- restarting the router-modem;
But the problem still remains.
I read that it may be that the modem router does not support the dynamic IP or MAC address of the new version of Android, but I'm not an expert.
If someone is facing the same problem or knows how to solve it I really appreciate the help.
Thanks in advance
Click to expand...
Click to collapse
Please look at this community where I have been posting doing some debugs on what were happening with Xiaomi Mi8 with Android 10.
https://community.cisco.com/t5/wire...onnecting-android-10-to-cisco-me/td-p/4009289
It looks like Xiaomi has deprecated WPA2 in some cases, but not in others. In my case, using Cisco APs I cannot connect until I configure native WPA3 (not even transition mode).
Same seems to happen to Nokia devices.
Weird behavior when you see you can connect to other APs using WPA2, but after doing some debugs with ADB I realized the phone wasn't sending association to AP, so it is not AP vendor fault.
And the thing I hate the most, is trying to open a TAC case with Xiaomi. They do not attend any expert issue but only low-level issues the type of factory-reset your phone and try again. I starting to hate this kind of support. They don't care about their products nor the users.
HTH
Jesus
chustm said:
Please look at this community where I have been posting doing some debugs on what were happening with Xiaomi Mi8 with Android 10.
https://community.cisco.com/t5/wire...onnecting-android-10-to-cisco-me/td-p/4009289
It looks like Xiaomi has deprecated WPA2 in some cases, but not in others. In my case, using Cisco APs I cannot connect until I configure native WPA3 (not even transition mode).
Same seems to happen to Nokia devices.
Weird behavior when you see you can connect to other APs using WPA2, but after doing some debugs with ADB I realized the phone wasn't sending association to AP, so it is not AP vendor fault.
And the thing I hate the most, is trying to open a TAC case with Xiaomi. They do not attend any expert issue but only low-level issues the type of factory-reset your phone and try again. I starting to hate this kind of support. They don't care about their products nor the users.
HTH
Jesus
Click to expand...
Click to collapse
It's not only about Xiaomi, but all the other brands. It's always impossible to reach to a person with technical knowledge, no matter what device or what tech support you contact with.
I actually don't expect any bug fixes from Xiaomi, since they didn't even care about Widevine L1 certificate while Pocophone F1 users received it.

XZ3 wifi problems

I'm just having a lot of problems withmy xperia xZ3 (H9394). In Monday, I updated google services and after that, the phone didn't connect to wifi or mobile data. I make a factory reset but it didn't work. I assumed the problem came from that update and everything will be fixed if I downgraded firmware. I tried first with sony emma flashtool, but I needed the bootload of my device to be unlocked. I unlocked it (yes, I screwed it) but emma said "no available services matched", so I tried it with newflasher and downgraded firmware, but it stayed in bootloop. So, I return to original firmware (52.1.A.3.92-R4C). It boot normally, but I have the same issues with wifi and mobile data, sometimes it works, but connects and disconnects constantly.
Someone can say me what can I do? I know that I can't relock bootloader.
@MartinX3 I know that you are a master, colud you help me?
Thanks! <3
I would look if that problem is the same on a custom ROM. (But flash on both slots and boot the latest stock first until you reach the desktop)
Or if it only happens with a specific WiFi, maybe the router need updates or a fix.
MartinX3 said:
I would look if that problem is the same on a custom ROM. (But flash on both slots and boot the latest stock first until you reach the desktop)
Or if it only happens with a specific WiFi, maybe the router need updates or a fix.
Click to expand...
Click to collapse
Thanks for reply.
What did you mean with flash both slots?
I have tried it with rom H9493_Customized CN_52.1.A.3.92-R14C, wifi and mobile data works. The problem now are the google services. I think it's a firmware problem...
crashas12 said:
Thanks for reply.
What did you mean with flash both slots?
I have tried it with rom H9493_Customized CN_52.1.A.3.92-R14C, wifi and mobile data works. The problem now are the google services. I think it's a firmware problem...
Click to expand...
Click to collapse
You have an A/B device
So you have two slots
MartinX3 said:
You have an A/B device
So you have two slots
Click to expand...
Click to collapse
Hello. I flashed again with 52.1.A.3.92-R4C custom Taiwan downloaded from xperifirm and it work for a time. First, I didn't have any issue with wifi and had 4G signal, but after hours, the problems came again and lost mobile and wifi signals. At that moment, I couldn't even activate wifi, when I turned it on it turned off immediately. For some reason, I activated airplane mode and turn on wifi and it worked, but when I turn off airplane mode, lost wifi signal. It's very strange. I think it's some problem with mobile data or something.
I will flash A/B slots. For that, I need the GSI and ASOP (Android 10.0 – Kernel 4.14 – Tama) img and I must do it with platform-tool, right? I don't need a firmware in tft?
Thanks.
crashas12 said:
Hello. I flashed again with 52.1.A.3.92-R4C custom Taiwan downloaded from xperifirm and it work for a time. First, I didn't have any issue with wifi and had 4G signal, but after hours, the problems came again and lost mobile and wifi signals. At that moment, I couldn't even activate wifi, when I turned it on it turned off immediately. For some reason, I activated airplane mode and turn on wifi and it worked, but when I turn off airplane mode, lost wifi signal. It's very strange. I think it's some problem with mobile data or something.
I will flash A/B slots. For that, I need the GSI and ASOP (Android 10.0 – Kernel 4.14 – Tama) img and I must do it with platform-tool, right? I don't need a firmware in tft?
Thanks.
Click to expand...
Click to collapse
For the custom ROMs you need to have the latest firmware on both slots and booted once until you reach your apps.
Then just follow the instructions of the XDA threads and don't forget a fullwipe.
MartinX3 said:
For the custom ROMs you need to have the latest firmware on both slots and booted once until you reach your apps.
Then just follow the instructions of the XDA threads and don't forget a fullwipe.
Click to expand...
Click to collapse
Hello again. I downloaded Android 10 GSI from https://developer.android.com/topic/generic-system-image/releases and AOSP 10 for XZ3 from https://developer.sony.com/file/download/software-binaries-for-aosp-android-10-0-kernel-4-14-tama/. I used the latest platform tools. I flashed oem_a, oem_b, system_a and system_b. After that, I did a wipe with fastboot -w command and finally reboot my device.
I checked that everything worked fine. Wifi and both sims worked fine.
After that I flashed the firmware H9493_Customized TW_52.1.A.3.92-R4C with newflasher and wiped it again. Did I do everything correctly?
Thanks.
If anyone wonders, no. It didn't work. I tried with custom roms and it was the same
I tried everything. I tried installing LineageOs, pixelsperience, Sony AOSP 10, 11, gsi 10, 11, and stock roms and nothing. Sims are detected some time, but stop after a while. i put an sd card instead of a sim card and it was not detected. I assume it is a hardware problem.
Well, thanks for helping
I'm having this exact same problem on my XZ3, thought I was going crazy but makes me think it's maybe not hardware related to find someone else with the problem...

Cant Turned on WIFI/BT, Already Flashed for BT still not working

Hi , its been a year since i bought xiaomi mi 9-global rom(128GB) and all work properly.
if im not mistaken the first rom when i bought is MIUI 10 , then the last time i update if im not mistaken is around september in MIUI 12.02 for the latest security patch.
Suddenly problem occurs recently maybe around a week. where my Wifi & Bluetooth disconnected by the system and cant be turned on but it fixed it self as i restart and now its never fixed.
I already some of fixed below :
- Restart devices
- Wipe all data
- Factory reset
- Try to flash the ROM from official one MIUI 12.02
- Following some tutorials that reset bluetooth and wifi settings
- Try downgrading MIUI version to 11
but still didnt work the Wifi & Bluetooth setting always crash & cant be turned on , try CIE or CIU test found out that the proximity sensor also didn't work.
I also tried some tutorials that do in EDL mode to install persist mode but its not working due to the Authentication it says" i dont have the permission"
Is there anyway i can fixed the Bluetooth & Wifi in this device?? The Mobile Data is still working and other features still working except Proximity Sensor, WIFI, Bluetooth.
Is the only way is to let the xiaomi store fixed it?? this is my only phone so i need it alot and the office store probably going to take long since pandemic.
Please help me Xiaomi Pro's out there :crying:
Edit :
- my xiaomi account already match with the phone the proof is i can unlocked OEM using the xiaomi. But it seems i still dont have permissions to flash EDL.
ohookayy said:
Hi , its been a year since i bought xiaomi mi 9-global rom(128GB) and all work properly.
if im not mistaken the first rom when i bought is MIUI 10 , then the last time i update if im not mistaken is around september in MIUI 12.02 for the latest security patch.
Suddenly problem occurs recently maybe around a week. where my Wifi & Bluetooth disconnected by the system and cant be turned on but it fixed it self as i restart and now its never fixed.
I already some of fixed below :
- Restart devices
- Wipe all data
- Factory reset
- Try to flash the ROM from official one MIUI 12.02
- Following some tutorials that reset bluetooth and wifi settings
- Try downgrading MIUI version to 11
but still didnt work the Wifi & Bluetooth setting always crash & cant be turned on , try CIE or CIU test found out that the proximity sensor also didn't work.
I also tried some tutorials that do in EDL mode to install persist mode but its not working due to the Authentication it says" i dont have the permission"
Is there anyway i can fixed the Bluetooth & Wifi in this device?? The Mobile Data is still working and other features still working except Proximity Sensor, WIFI, Bluetooth.
Is the only way is to let the xiaomi store fixed it?? this is my only phone so i need it alot and the office store probably going to take long since pandemic.
Please help me Xiaomi Pro's out there :crying:
Edit :
- my xiaomi account already match with the phone the proof is i can unlocked OEM using the xiaomi. But it seems i still dont have permissions to flash EDL.
Click to expand...
Click to collapse
I would try to follow flashing method from xiaomi.eu
https://xiaomi.eu/community/threads/miui-12-0-stable-release.56191/
Laptapper said:
I would try to follow flashing method from xiaomi.eu
Click to expand...
Click to collapse
Im a new user so i cant post link above
Click to expand...
Click to collapse
thanks for the answers , is it save to flash using EU ROM? last time when i browsing for fix tutorials i read some forum here about redmi user if im not mistaken that get the phone locked for 30 days after using custom ROM when he tried to revert it back. do you think its save ? mine is global version
ohookayy said:
thanks for the answers , is it save to flash using EU ROM? last time when i browsing for fix tutorials i read some forum here about redmi user if im not mistaken that get the phone locked for 30 days after using custom ROM when he tried to revert it back. do you think its save ? mine is global version
Click to expand...
Click to collapse
I think it's safe as miui could be.
But be shure to follow step by step and take right rom version. If it's working you can flash original miui or custom roms.
Laptapper said:
I would try to follow flashing method from xiaomi.eu
Click to expand...
Click to collapse
Laptapper said:
I think it's safe as miui could be.
But be shure to follow step by step and take right rom version. If it's working you can flash original miui or custom roms.
Click to expand...
Click to collapse
Thanks for the suggestion, after i tried to flash to EU ROM i got new MIUI version which 12.04 , in global its 12.02. However the problem still happening or still remain unsolved. The bluetooth & wifi still cant be turned on, i tried on CIT it also not working and everytime the i try to open wifi & bluetooth settings , the settings always freeze and crash probably because it error. Is there any other solution you can provide?
Thanks
ohookayy said:
Thanks for the suggestion, after i tried to flash to EU ROM i got new MIUI version which 12.04 , in global its 12.02. However the problem still happening or still remain unsolved. The bluetooth & wifi still cant be turned on, i tried on CIT it also not working and everytime the i try to open wifi & bluetooth settings , the settings always freeze and crash probably because it error. Is there any other solution you can provide?
Thanks
Click to expand...
Click to collapse
I think, if you have done a really clean flash with formating data, that it's a hardware problem.
Laptapper said:
I think, if you have done a really clean flash with formatting data, that it's a hardware problem.
Click to expand...
Click to collapse
yes, i did i already follow the instructions & having no error at all for the ROM and other stuff except the WiFi & Bluetooth.
But for me its just really weird, my phone looks still great from outside no bend, dent, or crack it never fall as well.
The problem starts occurring by itself like the system is forcing the Bluetooth & WiFi to off then at some point the WiFi is connected but not transferring any data after restart everything fixed then its not working at all, which when i tried to turn it on it will freeze or the system not responding or off by itself.
btw appreciate your answer, i'm still waiting for other solution if possible :crying:
ohookayy said:
yes, i did i already follow the instructions & having no error at all for the ROM and other stuff except the WiFi & Bluetooth.
But for me its just really weird, my phone looks still great from outside no bend, dent, or crack it never fall as well.
The problem starts occurring by itself like the system is forcing the Bluetooth & WiFi to off then at some point the WiFi is connected but not transferring any data after restart everything fixed then its not working at all, which when i tried to turn it on it will freeze or the system not responding or off by itself.
btw appreciate your answer, i'm still waiting for other solution if possible :crying:
Click to expand...
Click to collapse
Are you shure that you've got a global version. I had nearly the same probs as I've flashed the global on my eu hardware.
Laptapper said:
Are you shure that you've got a global version. I had nearly the same probs as I've flashed the global on my eu hardware.
Click to expand...
Click to collapse
yes, the box says global ROM and the warranty as well and made in china. When i first buy it the box still sealed too but ididnt buy from the mi store.
ohookayy said:
yes, the box says global ROM and the warranty as well and made in china. When i first buy it the box still sealed too but ididnt buy from the mi store.
Click to expand...
Click to collapse
In my personal opinion there're 2 possibilities
Damaged hardware
Or
Modem Partition wrong or damaged
MODEM or RADIO - the phone's radio
Also called baseband, it is responsible for signals and on older devices may control wifi, bluetooth, and GPS (on most newer devices, these are handled by the kernel and ROM). Upgrades are country dependent and may improve or diminish battery performance, network signal strength, and roaming capability. It is also sometimes required to have a minimum Baseband version to use a ROM so that the RIL will play nice with the Baseband.
Modem firmware is a mini-OS for the cellular radio chip which has its own processor. Firmware is a general term, firmware exists for a lot of things on phone. The wireless chip for WiFi, GPS, and Bluetooth often has a firmware as can the GPU core among other things. These firmware files are usually located inside the SYSTEM or VENDOR partition. The modem firmware is special because it has its own separate Baseband Processor (BP) so the firmware is left out of the system image in its own partition.
Modem is not an Android-specific partition. It is tied to the hardware of the phone, but the kernel has a code allowing Android to interact with the hardware. But the baseband processor (BP) - which runs modem and is responsible for all communication through mobile networks e.g. call, SMS and internet - is totally isolated from Application Processor (the one we call CPU) and is not governed by Android kernel; it runs an independent RTOS.
May it helps you for getting a solution....
Laptapper said:
In my personal opinion there're 2 possibilities
Damaged hardware
Or
Modem Partition wrong or damaged
MODEM or RADIO - the phone's radio
Also called baseband, it is responsible for signals and on older devices may control wifi, bluetooth, and GPS (on most newer devices, these are handled by the kernel and ROM). Upgrades are country dependent and may improve or diminish battery performance, network signal strength, and roaming capability. It is also sometimes required to have a minimum Baseband version to use a ROM so that the RIL will play nice with the Baseband.
Modem firmware is a mini-OS for the cellular radio chip which has its own processor. Firmware is a general term, firmware exists for a lot of things on phone. The wireless chip for WiFi, GPS, and Bluetooth often has a firmware as can the GPU core among other things. These firmware files are usually located inside the SYSTEM or VENDOR partition. The modem firmware is special because it has its own separate Baseband Processor (BP) so the firmware is left out of the system image in its own partition.
Modem is not an Android-specific partition. It is tied to the hardware of the phone, but the kernel has a code allowing Android to interact with the hardware. But the baseband processor (BP) - which runs modem and is responsible for all communication through mobile networks e.g. call, SMS and internet - is totally isolated from Application Processor (the one we call CPU) and is not governed by Android kernel; it runs an independent RTOS.
May it helps you for getting a solution....
Click to expand...
Click to collapse
Thanks for the long and detailed explanation . My mobile network & GPS still work properly without any issues.
but idk if the Bluetooth & WiFi chip maybe fried inside
Maybe i just dont have any other option except to fix in mi store.
Once again thanks for the help :fingers-crossed:.

Question [Help] Wifi unstable after flash

Hello all,
Trying my luck here.
I have a 11T Pro (Vili), International. I was using PE GSI and it was just perfect... fast, no issue, etc...
I wanted to do a small update on Magisk, and i've crashed the boot. Well, nothing bad, i'm used to that kind of thing, reinstall blablabla... and now Wifi is broken.
Wifi is working randomly :
- It takes ages to scan networks
- It connect, and disconnect after a few seconds
- Once connected bandwidth is not good
- Wifi button get disable without any reasons
And that : Randomly
Wifi is working for other devices
What i've done / tried
- Reinstalling multiple version of PE GSI
- Reinstalling MIUI Rom (with Miflash, and the firmwares) : for International and Europe, multiple versions...
- Flash modem.img
- Flash persist.img (in fastboot, not EDL)
Each time, the same : Wifi is not working correctly. I see the mac address in the OS. But Wifi keep connecting, disconnecting, etc...
Phone network is working perfectly (5G, etc...)
If anyone has any idea, i'm lost. I never had that kind of issue.
Thank you
Lennyroquai said:
Hello all,
Trying my luck here.
Thank you
Click to expand...
Click to collapse
What is the original version of your phone, global ect...?
What roms did you flash with Miflash?
NOSS8 said:
What is the original version of your phone, global ect...?
What roms did you flash with Miflash?
Click to expand...
Click to collapse
Global / International (I've checked the IMEI)
The Rom flashed with MiFlash is vili_global_images_V13.0.7.0.SKDMIXM (Latest is 13.0.8, but no released in Fastboot Image)
Lennyroquai said:
Global / International (I've checked the IMEI)
The Rom flashed with MiFlash is vili_global_images_V13.0.7.0.SKDMIXM (Latest is 13.0.8, but no released in Fastboot Image)
Click to expand...
Click to collapse
Try to flash with Miflash, an A11, the best, the one that was on the phone when you bought it.
https://xiaomifirmwareupdater.com/archive/miui/vili/
https://forum.xda-developers.com/t/flash-tool-guide-use-xiaomi-flash-tool.4262425/
I've tried numerous time and MIUI version, each time : Wifi is acting the same.
Lennyroquai said:
I've tried numerous time and MIUI version, each time : Wifi is acting the same.
Click to expand...
Click to collapse
Android 11 version and mi flash fastboot rom?
Ho sorry, my brain wasn't working anymore, i hadn't tried going back so much regarding the version
Just flashed a Android 11 (Miui 12.5) and wifi seems to be back online and working.
I'm gonna update to latest MIUI and tried to reflash PE, and will confirm here
If it works : i own you a box of chocolate, a bottle of cognac, whatever is your poison !
Lennyroquai said:
Ho sorry, my brain wasn't working anymore, i hadn't tried going back so much regarding the version
Just flashed a Android 11 (Miui 12.5) and wifi seems to be back online and working.
I'm gonna update to latest MIUI and tried to reflash PE, and will confirm here
If it works : i own you a box of chocolate, a bottle of cognac, whatever is your poison !
Click to expand...
Click to collapse
Do you like to play with fire, GSI rom+Magisk+modules=?
There are AOSPs available.
Regarding the PE : i had it on my last phone. And when i switched to the 11T Pro, i've just checked the forums and people were saying to go with the GSI.
I've tried, and it was fine until now.
For info : I've updated through OTA from 12.5 to 13 (latest MIUI) : and wifi is back down !
God damn, that's crazy
Reverting to A11 !
For anyone getting to this thread : people on Xiaomi forums confirmed to me the Wifi issue with the last firmwares with some 11T.
Lennyroquai said:
For anyone getting to this thread : people on Xiaomi forums confirmed to me the Wifi issue with the last firmwares with some 11T.
Click to expand...
Click to collapse
Avoid stable Beta roms, latest Stable V13.0.7.0.SKDMIXM
It was with this one that i had issues.
I've tested V13.0.6.0 and V13.0.7.0 and both we're creating problems for me, and it was confirmed by users that are with MIUI. Both are labeled "Stable" but users report some problems with them
I unfortunately don't remember which firmwares was on my phone when i've got it

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