Problem sim card / Bluetooth and wi-fi - Not active - Xiaomi Mi 8 Questions & Answers

Dear friends,
I had a problem with my xiaomi mi 8, it fell to the ground and the car passed over it, I thought at first that it would only be the exchange of the screen and when trying to take the battery, also damaged.
After buying the display and the battery and installing, I had a surprise, my simcard does not detect, my bluetooth and wifi do not activate, mac adress is only 02: 00: 00: 00, I've read some reports of people with the same problem .
I wonder if the problem might be software or hardware?
Was it because of the battery change and display or will it be that with the problem occurred the car having passed over damaged some plate?
I have tried some persist.img procedures and install custom rom and others ...
Can someone help me in anything ??
Appreciate.

I have the same problem like you, only with different cause. Mine having mac address 02:00:00:00:00:00 since i Unbricked my phone using edl method. I've looking for solution too. I hope some one will find solution for this.

bruninzin said:
Dear friends,
I had a problem with my xiaomi mi 8, it fell to the ground and the car passed over it, I thought at first that it would only be the exchange of the screen and when trying to take the battery, also damaged.
After buying the display and the battery and installing, I had a surprise, my simcard does not detect, my bluetooth and wifi do not activate, mac adress is only 02: 00: 00: 00, I've read some reports of people with the same problem .
I wonder if the problem might be software or hardware?
Was it because of the battery change and display or will it be that with the problem occurred the car having passed over damaged some plate?
I have tried some persist.img procedures and install custom rom and others ...
Can someone help me in anything ??
Appreciate.
Click to expand...
Click to collapse
You solved it?

emreglgl2 said:
You solved it?
Click to expand...
Click to collapse
I still can not solve it, I even got the qcn file, but I could not restore it.
Soon I will create a topic with some information and with the QCN file.
Do you have the same problem?

i have also same problem.
mine mac address changed to 02:00:00.....
Tried many thing to solve it.but nothing happened.now my wifi also not working

I also have the same problem I also have the same problem?

sear01 said:
I also have the same problem I also have the same problem?
Click to expand...
Click to collapse
https://c.mi.com/thread-2111243-1-0.html

Me too (
Trying 2 day

Related

[Q] Wi-Fi and Bluetooth not responding

Hey guys. First of all I want to thank you all for detailed information and in advance for helping me I've got a really weird problem that I can't solve. I bought my milestone from a guy(second hand) and I found wi-fi and bluetooth is not working. I thought that I can solve the problem but I can't find any solution over all android forums.
I flashed some different ROM's but nothing affected the Wi-Fi and Bluetooth problem. When I try to Turn On Wi-Fi it tries to start and then stops then again starts, it goes on and on. I tried to find original MAC address it shows 00:00:00:00:00:00. I tried to Mac Spoof but I can't change it from terminal.
And for the bluetooth I click Turn On then it tries to turn on and stops like I didn't click anything.
As a summary I lost my Wi-Fi and Bluetooth. Anyone can help me restoring it back to normal? Cause in my Area 3G is unstable and I want to use my home network! I can't use it any more. I'm waiting for the good responses.
Thanks in advance...
Please help. This is important for me... If someone helps me I'll donate 15 USD from paypal. Thankssss...
There are several possible reasons why it's not working. They include:
Bad hardware.
Corrupt software.
Non Stock Firmware.
To eliminate the last two, you can flash the appropriate SBF.
To do this, follow the instructions on how to get your milestone back to stock here: http://forum.xda-developers.com/showthread.php?t=696845
On the page to get sbf, scroll down to the 2.1 section and dowload the latest version for your carrier
This will completely wipe your phone, and make it like a new phone. If that doesn't resolve the issue, the problem is probably hardware related.
If this worked for you, please donate the $15 to xda. You can do that via http://forum.xda-developers.com/donations.php
Thanks for quick-reply. But i tried this one before. But it didn't solve this issue. I'll try one more time... How could hardware (both bluetooth and Wi-Fi) be bad? There must be a way to return it back... I'll update this as i try again the original file...
ggursel said:
Thanks for quick-reply. But i tried this one before. But it didn't solve this issue. I'll try one more time... How could hardware (both bluetooth and Wi-Fi) be bad? There must be a way to return it back... I'll update this as i try again the original file...
Click to expand...
Click to collapse
I'd assume that the same chip runs both as is usually the case for embedded systems. If the original firmware doesn't work, the it's likely a hardware issue.
I tried a new update and bluetooth worked for once. And then stopped again. And I sent to warranty they said they cannot change all mainboard cause it'll cost near phone's cost. And after I see Bluetooth works for once I thought may be it's radio based problem. How can I update the original radio update only? Thanks in advance...
I have got exactly the same problem.
I have already sent it back to motorola under warranty and they changed a few things. It work for about a day and then exactly the same.
I thought the update to froyo would work, it did for a day and then reverts back to the same problem.
Have you solved this yet?

GPS sensor not working

Hello XDA guys. Your webpage is awesome.
I have a problem witn my Z3C (5833) for a month now and I have tried many things with no success. I hope you can help.
My phone was updated to Lollipop not long ago (May - June to 5.0.2) and in one moment (I cannot tell exactly when) the GPS sensor stopped working. The Wifi and Mobile location work, however the GPS is dead. Phone not unlocked or rooted. Original Stock ROM.
I go to the about phone - Diagnostics and test the GPS.. and it stays as "GPS is starting ... the GPS couldnt be started". When I download GPS test apps, they dont detect a single sattelite. I also tried the *#*#7378423#*#** GPS diagnostics, "purged assistance data", and it keeps on "waiting for location update" eternally
Because of this I wrote to Sony and they answered asking me to do a phone repair from Sony PC Companion. I did the phone repair and the problem was not solved.
Because of this I thought .. hey, maybe Lollipop is the problem. So I unlocked the bootloader and downloaded Emma (Sony recommended flash program for stock ROMs).
Emma downgraded my phone to 4.4.4 (23.0.A.2.93). However I still had the problem.
Next, I enter XDA and downloaded Flash tool. I downloaded one of your stock ROMs: 23.0.1.A.5.77 - Unbranded - Australia (1288-4214) {4.4.4}
I installed it and nothing. Same dead GPS.
So now I have no clue what might be the problem. Maybe the antenna got broken inside? How can I know if its a hardware or software issue?
Any help would be appreciated
Additional data:
Right now I have the 4.4.4 (23.0.A.2.93)
Baseband: 8974-AAAAANAZQ-00005-05
Kernel: 3.4.0-g0961cdf Build [email protected] #1 Tue Aug 19 19:48:36 2014
Thanks
If the issue still exist with different firmware i guess its a hardware failure.
basti2909 said:
If the issue still exist with different firmware i guess its a hardware failure.
Click to expand...
Click to collapse
How do I open the phone?
Thanks
Emi85 said:
How do I open the phone?
Thanks
Click to expand...
Click to collapse
I opened the phone. Now i need to know where is the GPS antenna, anybody know?
In sony it says its near the headphones plug. No more details.
Thanks
Hi,
I have the same issues. It says since about two months. 23-26 sattelites found, but no signal and no fix. On 4.4.4 was OK, since updating nothing anymore.
I went back to Kitkat but still dead.
Anyone managed to get it back without sending it in??
Same problem...no GPS.anyone with a solution??? New motherboard? Soldering a antenna. Someone's got to have a fix for this problem.
Sent from my D5803 using Tapatalk
Same problem and even tried to update to Android 6.0 with Marshmallow and still no GPS. 23-26 sattelites found, but no signal and no fix.
Any updates?
Hello,
I noticed since some time the same problem. I did a quick search on Google, and the problem seems more then usual after one of the official updates by Sony. The problem is discussed on the Sony Xperia Care support forums. All the affected user seems to suffer not from a complete signal outage, but rather from a substantially downgraded performance due to a bad SNR value and poor signal tracking, as can be seen by using the GPS Test app.
Resuming what has been written in the threads, all the following operations seems not to solve the issue:
- factory reset / repair with PC companion
- downgrading to an earlier release
- installing a custom ROM
- returning unit at service
What is annoying is the total disinterest by Sony that seems to ignore the problem, maybe they only want to take time to better understand the problem. If anyone should have news about this please let me know, because the only solution for this issue for now seems to be wating for a solution!
Thank you!
Same problem. Original Kitkat. In May worked excellent. During August I mentioned,it dosn't work. Some photos had changed infos about time and date of creating. On camera disappeared SCENE function in manual mode. When I allowed gps function on camera, gps worked immediately. Unfortunately only once. Camera Blocks gps?
Same problems here...
Hey, same issues here. I think it's just really slow to connect. I've recently sent my phone in for a warranty repair with Vodafone. It came back and was still broken.
Today however... I checked my phone and itw as working again (for about half an hour). Now I'm getting nothing again.
I've tried everything suggested, even down loaded AGPS file etc. But nothing seems to work.
Mega frustrating!!!
the only way for today is replacing motherboard... sony sucks. never again
I just wrote on the sony xperia support forum, somebody talks about a fix they provided for the xperia m series that seems to be affected by the same issue. But for our z series it seems not to be any fix at the moment.
After suceeding the GPS diagnostic test in the settings once, the GPS seems to be fully broken with no tracked satellite at all (before it was at least tracking a few satellites with a very poor SNR, now nothing according to GPS Test app). Repeating the GPS diagnostics now always results in an error. I'll try the warranty return but I'm pretty sure they'll give me a faulty device, as many other here and on the other forum have experienced.
Same problem ... just got the phone days ago.
Any solution ? or do I need to return it ...
I had issues with GPS, could see satellites but no fix on any. after expired warranty I rooted it and used 4 different ROMs, worked on all of them. instant lock on min 6 satellites. I am aware it could be HW issues but this is my experience with this problem.
gnjurac said:
I had issues with GPS, could see satellites but no fix on any. after expired warranty I rooted it and used 4 different ROMs, worked on all of them. instant lock on min 6 satellites. I am aware it could be HW issues but this is my experience with this problem.
Click to expand...
Click to collapse
I'm more and more convinced that this is a SW issue. Sony did something wrong when updating the firmware in August 2015. The fact that the satellites are visible comes in my opinion from the AGPS data, which loads the konwn satellite positions from the Internet. Instead, the problem seems to be the locking of a satellite signal, and it seems that something is disturbing the GPS antenna. If it comes out that this is really the issue, it is very disappointing that Sony didn't do absolutely nothing to solve the issue since last summer.
I'm using CM12.1 nigthlies and since about December/January I have the same problem. So a custom ROM does neither help nor prevent the problem. In addition to that, compass is uncalibrated and I don't get it calibrated again. Really sucks, last year I used the Z3C for lots of outdoor navigation, and suddenly something has happend which makes the device unusable...
I did root with kingroot and changed /etc/system/gps.conf as described in code.google.com/p/android/issues/detail?id=81140#c695
Now my GPS is locking again.
Did not help for me. Currently I don't even get bad fixes, I get no fixes at all. Never ever, even after hours in the open. This sucks.
Hi,
Disabling google maps helped me. Before 0 sats visible, after disabling it locks within seconds.
apneist said:
Hi,
Disabling google maps helped me. Before 0 sats visible, after disabling it locks within seconds.
Click to expand...
Click to collapse
I had the opposite experience, I had no lock, I was trying everything, then I opened maps and I had lock in under ten seconds.
I wonder if it's a glitch in accepting the google 'we're going to follow your movements' contract. Because until I agreed to that, gps didn't work.

No connection issue /w lg wear urbane

Hey. So I've faced a kinda strange issue. The watch seems to be connected to the phone, everything is okay. I get notifications etc. However, once i try to use "Ok, Google", it seems that simultaniosly the watch looses it's connection and i get that red circle trying to hear me out and, finally, no connection with crossed cloud logo. This situation occurs when wifi is turned off\automatic\forced to my local wifi. My cellphone is Xiaomi mi note. Please advise if any1 of you had the same problem and how can it be solved.
DrStrangeluv said:
Hey. So I've faced a kinda strange issue. The watch seems to be connected to the phone, everything is okay. I get notifications etc. However, once i try to use "Ok, Google", it seems that simultaniosly the watch looses it's connection and i get that red circle trying to hear me out and, finally, no connection with crossed cloud logo. This situation occurs when wifi is turned off\automatic\forced to my local wifi. My cellphone is Xiaomi mi note. Please advise if any1 of you had the same problem and how can it be solved.
Click to expand...
Click to collapse
I had that issue.. tried everything, finally did a factory reset - has not happened after that.
PG101 said:
I had that issue.. tried everything, finally did a factory reset - has not happened after that.
Click to expand...
Click to collapse
Factory reset = restore default from the menu, i presume?
Okay, the solution to the issue occured in the manner i did not expect it to be. I should have activated the voice recognition thru BT devices. (google->settings->voice). However, since i own a chinese phone - that topic may rise on phones without preinstalled g-apps (and google search bar accordingly). So in case any1 has that problem - check that bar.
DrStrangeluv said:
Okay, the solution to the issue occured in the manner i did not expect it to be. I should have activated the voice recognition thru BT devices. (google->settings->voice). However, since i own a chinese phone - that topic may rise on phones without preinstalled g-apps (and google search bar accordingly). So in case any1 has that problem - check that bar.
Click to expand...
Click to collapse
Wrong. Didn't solve the problem.
DrStrangeluv said:
Wrong. Didn't solve the problem.
Click to expand...
Click to collapse
Were you able to solve the problem?
triolight said:
Were you able to solve the problem?
Click to expand...
Click to collapse
No. The problem occurs randomly, plus I swap firmwares on my phone, so there is none "stable" source of problems. On the other hand i believe that it happens less nowadays. mb android_wear.app did something to this, or watch firmware.

zuk z2 pro wifi problems

Hi there!
I have this zuk z2 pro monts ago and it comes with a custom shop rom. With the custom rom everything worked perfectly except that it doesnt have the option to update its system.
So to be able to update its system, i flashed it with a stock rom and it updated without any problem. Then im starting to notice that when i am on my wifi, some apps seemed to have stopped to connect. So i tried it on data, and it worked fine. Tried to connect it to another wifi of another isp, it works, but when im back on my providers wifi the problem still there. Also tried connecting to other wifi with the same isp as mine, and yeah, still apps dont run.
Now, is it possible that the stock rom is being selective with isps when running wifi? Anyone had this very weird problem like mine?
I have the same problem. When I connect to the wifi from my provider it fails, disconnects, stops working.
But I found a solution (for me): I added an extra wifi-router to my adsl-modem. Now I don't have that problem anymore.
Why this is happening, I don't know.
luytent said:
I have the same problem. When I connect to the wifi from my provider it fails, disconnects, stops working.
But I found a solution (for me): I added an extra wifi-router to my adsl-modem. Now I don't have that problem anymore.
Why this is happening, I don't know.
Click to expand...
Click to collapse
I think that this happens because Zuk z2 is configured for China region at wifi. You can change the region at custom roms but stock rom doesn't have this option
Other similar problem
luytent said:
I have the same problem. When I connect to the wifi from my provider it fails, disconnects, stops working.
But I found a solution (for me): I added an extra wifi-router to my adsl-modem. Now I don't have that problem anymore.
Why this is happening, I don't know.
Click to expand...
Click to collapse
In my case I have a similar problem. My Wifi not work in 2.4Ghz frequency only in 5.0Ghz. Somebody can help me? I already flash various custom roms and stocks (using qfil) and basebands (from basebands colections) and one million of possible things. Can would be hardware problem?
brunolsantosvc said:
In my case I have a similar problem. My Wifi not work in 2.4Ghz frequency only in 5.0Ghz. Somebody can help me? I already flash various custom roms and stocks (using qfil) and basebands (from basebands colections) and one million of possible things. Can would be hardware problem?
Click to expand...
Click to collapse
Try to flash aex or lineage. At advanced wifi settings they have a region setting. Choose China and tell me if it helps
chtsarts said:
Try to flash aex or lineage. At advanced wifi settings they have a region setting. Choose China and tell me if it helps
Click to expand...
Click to collapse
Not work! Actually the lineage rom is installed and the region choosed is China. I don't know what I do.
Any solution?
Try to flash 1.9.104 st by qfil . Notice that relock bootloader . If it doesn't improve that means hardware problem .
leoneiva said:
Any solution?
Click to expand...
Click to collapse
can be a problem of incompatibility between zuk phone and wifi router as well. Some TPLink routers are already known not to be working good with ZUK Z2 Pro. So it is not always a fault of ZUK
Today i am trying sagemcom modem. No sucess! It connects for only 5 seconds.
After 4 roms(android 7.1 and 8.1), 3 routers(tp-link and Sagemcom) and 2 days, i dont know what to do!
3 months of heavy use and no problems. suddly i heppens!
But if i put the phone on the router(Very close), it keep conected, but the connection is very very very low speed.
Same problem, after stock ROM update wifi see all networks, but impossible to connect. I install zui 1.9, i update, i install persist partition, i try aex, RR... Same problem, wifi can t connect, you have solution?
Any solution?
Solution to my problem.
Sorry, i wasn't to visit here and post the fix i did to solve my problem. Anyways, here it is.
Basically i found out that the problem goes with a sudden incompatibility issue with my phone and the wifi. Im clearly not sure as to what may have caused such, but it come and goes from time to time.
Solution:
I just simply had a reset on my router and walla, solved it. Also, do a clean up on your wifi list. Forget your old SSID, and connect to the new one. This basically solved mine.
Thanks! Keep me posted and see if my solution helps.
I guess you should try the suggestion given at the comment above. But even better than that, you wouldn't have this problem if you had bought my ZUK as you initially wanted to. Cheap is not always really cheap...

Xperia 1 ii | Wi-fi MAC address and BT address unavailable/ Wi-fi and Bluetooth not working

I just bought a second-hand Xperia 1 ii XQ-AT51 and didn't noticed then that Wi-fi and Bluetooth are not working.
And also that the bootloader is unlocked.
Besides from those issue and that the charging seems to be regular charging, not fast, everything works fine (NFC, Mobile Data, camera, features).
I don't know what the previous owner did, he clearly did something because the bootloader was unlocked; and asking and reading from other post, seems that nobody had these issues when unlocking the bootloader or rooting this model.
I locked the bootloader and tried repairing the software with Xperia Companion. Same software 58.1.A.5.507 (as I see the latest) before and after repair
Guess what: nothing different, although repairing was successful.
Then I unlocked the bootloader, flashed twrp as recovery (probably not necessary in my case) and flashed the stock software with Flashtool, latest from xperifirm (the same version I had before).
But I got some messages that some 3 things didn't flashed (not saved them).
Still the same.
Under Settings -> About it says Unavailable at Wi-fi MAC address and Bluetooth address.
With code *#*#4636#*#* I can see that the Wi-fi MAC address is 02:00:00..... (see attached image).
With code *#*#7378423#*#* at Bluetooth says Enable Bluetooth, at WLAN says enable WLAN, but on another Xperia I can see that it says OK for Enable an then Searching (see attached image).
Do you guys have any idea what to try to solve this issue or what to test in order to find the cause?
Thanks!
hi man ,i have same this issue with my mark II (XQ-AT52) , do you find out the way to turn on wifi and BT ?
Unfortunately no. After an Android/Security update the phone started to restart in about 2 minutes at max. So after 10 seconds or 1 minute it restarted, but not suddenly (like if you disconnect the battery), it was restarting normally. Then I tried software repair, but the phone would be stuck or get out of the flashmode. Enters fastboot but it wasn't seen by PC with adb devices command.
So now I have another issue that most probably will leave my Xperia as a brick. Sadly, because I really liked it.
I have now a SH Galaxy Note 10, but I'm planning to buy another Xperia when this brokes.
I also had the exact same problem as you, so I gave up later, when Android 12 push out and i upgrade but didn't solve problem, so I was wondering whether to continue using it without wifi and bluetooth or send it to Sony for repair.
9mori3 said:
I also had the exact same problem as you, so I gave up later, when Android 12 push out and i upgrade but didn't solve problem, so I was wondering whether to continue using it without wifi and bluetooth or send it to Sony for repair.
Click to expand...
Click to collapse
On mine I also noticed after I bought it that it was opened, so I didn't found if it was hw or sw related, but since you also had this problem probably it is a software issue, or at least not a hardware issue because someone opened it.
Especially if yours is in warranty, I think you should send it to Sony.
If i use a third-party rom like miui , WIFI and BT sometimes can be opened and used, but it will cause the system to crash, so I also think it is a software problem ,maybe related to the persist partition 。
hi guy,I sent my mobile phone to Sony for maintenance. After they tried to update the system again, they told me that I needed to replace the motherboard, which cost $400 , so I gave up and now use the unofficial rom

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