After EMUI 10 Update Mobile Data Broken - Huawei P30 Pro Questions & Answers

My phone is the VOG-L29 10.0.0.178(C605E19R1P3) and I'm in the U.S. does anyone know how to fix mobile data not working after updating to 10.0.0.178(C605E19R1P3) from 9.1?
*Downloaded the update through the phone UI*
To verify that it was an OS issue I reverted back to 9.1 and the problem went away. So I updated again and it broke. My carrier is AT&T but the signal is fine as I can see the connection strength in the network settings and the SIM is registered. Plus I can see the cell information on the top left of the phone so the sim is definitely recognized. Bought a new sim anyway but the problem persists. Huawei support recommended I just not update my phone and keep it on 9.1 without security patches.
Already did a factory reset after updating to 10 and wiped the cache but that still didn't solve it.
So basically when simply looking at the phone, it appears to be working, until I try to do anything on mobile data. I can even see the send and receive icons being displayed to the right of the AT&T logo at the top left but I can't access the internet. everything else works including Wi-Fi.
This same thing happened when I tried to install 10.0.0.173 over 9.1.
Any ideas on a fix would be great, thank you in advance.

pseriesjim said:
My phone is the VOG-L29 10.0.0.178(C605E19R1P3) and I'm in the U.S. does anyone know how to fix mobile data not working after updating to 10.0.0.178(C605E19R1P3) from 9.1?
*Downloaded the update through the phone UI*
To verify that it was an OS issue I reverted back to 9.1 and the problem went away. So I updated again and it broke. My carrier is AT&T but the signal is fine as I can see the connection strength in the network settings and the SIM is registered. Plus I can see the cell information on the top left of the phone so the sim is definitely recognized. Bought a new sim anyway but the problem persists. Huawei support recommended I just not update my phone and keep it on 9.1 without security patches.
Already did a factory reset after updating to 10 and wiped the cache but that still didn't solve it.
So basically when simply looking at the phone, it appears to be working, until I try to do anything on mobile data. I can even see the send and receive icons being displayed to the right of the AT&T logo at the top left but I can't access the internet. everything else works including Wi-Fi.
This same thing happened when I tried to install 10.0.0.173 over 9.1.
Any ideas on a fix would be great, thank you in advance.
Click to expand...
Click to collapse
Re-enter the passwords on the APNs, it corrupts them, they're supposed to be ******* or something but it enters BLANK, something along those lines, but that's the fix

*Detection* said:
Re-enter the passwords on the APNs, it corrupts them, they're supposed to be ******* or something but it enters BLANK, something along those lines, but that's the fix
Click to expand...
Click to collapse
That fixed it, I can't thank you enough.

Related

[Q] HELP: Lost cellular data and service

Anyone have a fix for this? On Verizon and after almost 4 weeks I have lost my cellular service and data. I noticed when I went to check up on my phone right now that it was finishing a boot-up screen and then never had any bars at the top. Dug deeper and found no service at all. Wiped dalvik and cache and seemed to be bars for under a second and then gone. I am on sensei kernel and am thinking about doing a factory reset and reverting to stock kernel. But I really don't want to lose the benefits it came with.
rmx36 said:
Anyone have a fix for this? On Verizon and after almost 4 weeks I have lost my cellular service and data. I noticed when I went to check up on my phone right now that it was finishing a boot-up screen and then never had any bars at the top. Dug deeper and found no service at all. Wiped dalvik and cache and seemed to be bars for under a second and then gone. I am on sensei kernel and am thinking about doing a factory reset and reverting to stock kernel. But I really don't want to lose the benefits it came with.
Click to expand...
Click to collapse
Well, this is odd. After a month of perfect service, I suddenly cannot get LTE, only 3G. Even nandroids of prior ROM's will not boot into LTE. Is VZW LTE down or should I do a total clean reformat? i do have factory images and everything is backed up. Just a pain.
Very strange. I was flashing various ROM's (CM 12 based - am testing for someone) and at one point pulled out SIM and replaced it. I checked to make sure it is seated right since then. Again, no longer get LTE.
Was on Sensei kernel as well. Let me try flashing stock kernel from ROM first. EDIT: NOPE! Flashing the stock kernel from the ROM did not do it. Looks like total reformat/flash is next!
markwebb said:
Well, this is odd. After a month of perfect service, I suddenly cannot get LTE, only 3G. Even nandroids of prior ROM's will not boot into LTE. Is VZW LTE down or should I do a total clean reformat? i do have factory images and everything is backed up. Just a pain.
Very strange. I was flashing various ROM's (CM 12 based - am testing for someone) and at one point pulled out SIM and replaced it. I checked to make sure it is seated right since then. Again, no longer get LTE.
Was on Sensei kernel as well. Let me try flashing stock kernel from ROM first.
Click to expand...
Click to collapse
I just got my Nexus 6 and I am also on Verizon and had the cell coverage drop too. I backed up my apps with titanium backup and did a factory reset and signal came back. I only had it for a day and went to Canada and on my way back to the US I noticed the cell bars were gone. I was just rooted and boot loader unlocked and otherwise stock. I read online that others had this issue when they got to places in the US that had little or no signal. I also noticed that under cellular network settings it loads up with Global under the preferred network type even though it has an option for "LTE (recommended)" and if you choose LTE, global is never an option again until you do a factory reset and it loads with it pre selected. With global selected it works perfectly with calls and LTE, so not sure what that means or if my selecting LTE made it drop the signal after going back from Canada.
Yep, total flash of factory image fixed it. Sigh. Early enough in the day for me to get everything set up again.
Same. About to do it too... I've done too many factory resets with this already. Kind of annoying.
I am in the same boat. Had no problems until I flashed bliss 1.5 then was stuck on 3g. Tried a clean flash of Slim and still stuck on 3g. I will try a stock rom but I am not very hopeful at this point. It's looking a like a reformat here as well :/
Ended up having to format everything and start from scratch again. I'm running a stock ROM now and in weary to try another cm ROM
Don't know if it'll help, but try LTE Discovery app in the Play Store. I use it from time to time to reset my data connection.
Having the same issue, running CM12 daily, have been for a week or so. Midday today it drops LTE, 3g data was working, then a few minutes later to no data. I didn't change anything, nothing new installed. I did reboot the phone at some point before this but that is all...
My only fix was to backup via trwp, restore stock rom, factory reset, reboot & let sim activate, then restore cm12 via twrp... it's a 20-30 min fix all said and done.... pita
Maybe its something Verizon is doing, because I didn't change anything and then next thing you know no data. I hope it's a simple fix for CM12 but I see this popping up more the last few days. Hopefully someone will figure it out. I like CM and prefer it over stock but I am not going to do this multiple times a day just to keep CM...
lohonda said:
...and if you choose LTE, global is never an option again until you do a factory reset and it loads with it pre selected.
Click to expand...
Click to collapse
I just checked and global is still an option for me. I've bounced back and forth, looking to see if anything changes..
Same thing has happened to me last night, lost connection to VZW cell and data. Looking at the field test menus, it seems like the SIM/device understand GSM but NOT CDMA anymore. So I believe the issue has something to do with that. Tried everything, but will nuke and repave most likely....also lost Global as well. and LTE Discovery shows GSM stuff nothing for CDMA
Tried the SIM in another device and it works so its not the SIM.
OK I tried a world of things to recover like some of you may have....its something in Userdata because if I flash everything but userdata it wont work. I am going to try and recover from the backup I had before this happened to see if that works....otherwise rebuild from scratch
will post back
UPDATE: So restoring a backup seems to be ok once you get the SIM back.
Having the same issue over here as well... After a month or AI of having the 6, now I randomly drop service where I would normally have full LTE. I almost NEVER get LTE now and am at most on H with a couple bars then it drops out again. Have also.noticed WiFi connection is very shakey.
Any one find a fix?
I had an issue where i couldnt get my phone to connect any network. Took me long rime to realise, that entering my PIN-number too fast caused the issue xD it unlocked the sim, but didnt let me connect any network... Dunno if this helps anyone, but definetly the most cryptic issue I've ever had.
th3g0d said:
I had an issue where i couldnt get my phone to connect any network. Took me long rime to realise, that entering my PIN-number too fast caused the issue xD it unlocked the sim, but didnt let me connect any network... Dunno if this helps anyone, but definetly the most cryptic issue I've ever had.
Click to expand...
Click to collapse
Troubleshooting my wife's N6 here. Your PIN issue doesn't make sense to me because the phone should be connected to the carrier when locked. Are you talking about WiFi? Because that should be connected too when locked unless settings have been changed from their default (ie, turn off wifi when locked/asleep or something)
quidpro said:
Troubleshooting my wife's N6 here. Your PIN issue doesn't make sense to me because the phone should be connected to the carrier when locked. Are you talking about WiFi? Because that should be connected too when locked unless settings have been changed from their default (ie, turn off wifi when locked/asleep or something)
Click to expand...
Click to collapse
I'm talking when you turn on your phone and it asks for pin number to unlock your sim. Some how it seems that if you enter your pin too fast, it bugs the phones radio somehow and you can't connect to your carrier but if you wait like 5sec before entering the pin, it connects to the carrier and the (!) Mark goes away. Try rebooting the phone and see if it helps? Even I think its a weird issue
Edit: OK, just pinpointed MY issue. I have to wait for the "no service" text to change into "emergency calls only" before entering my pin or I don't have any service just the exclamation mark :/
th3g0d said:
I'm talking when you turn on your phone and it asks for pin number to unlock your sim. Some how it seems that if you enter your pin too fast, it bugs the phones radio somehow and you can't connect to your carrier but if you wait like 5sec before entering the pin, it connects to the carrier and the (!) Mark goes away. Try rebooting the phone and see if it helps? Even I think its a weird issue
Click to expand...
Click to collapse
Thanks. I told her about it and she will give it a try, or just remove the pin altogether as a test. It is a weird issue. She is missing important calls from her elderly parents at night and it is rather frustrating. Turning wifi off also seems like a bad fix.

Weird Nokia 8 sim-problem.

Sorry if this kind of problem has come up before, but I couldn't find anything similar to this so I decided to ask you guys if you have seen this before.
So, my problem started out of nowhere, my Nokia 8 (TA-1004) lost wifi and mobile data. I can't connect to wifi anymore and I have no service.
So here comes the weird part. My sim works in every other phone I've tested it, it just doesn't work in mine, AND every other sim card I've tested in my phone
works fine. My sim also blocks my wifi somehow, if it's inserted, it keeps turning off my phone's wifi, no matter how many times I keep turning it on. If I take
sim out, wifi works fine.
I forgot to mention that when this first occurred, I managed to get it work by turning on my phone with my brother's sim inserted, then switching his sim to mine without turning the phone off.
If I turned it off, the problem came back. Now, after Oreo 8.1 update and new sim-card, even this method doesn't work. Nothing has worked since.
Here's what I've done:
-Got new sim-card
-Factory reset through settings
-Wipe data/factory reset through recovery
-I called my operator, they didn't know what the problem is. They recommended to send my phone to manufacturer, but I hope it doesn't come to that. And maybe they
would try their sims in my phone and they would think there is no problem so no need to do anything.
Any help is highly appreciated, thanks
This is very strange problem. Only thing that comes to my mind as a solution is choosing the network by yourself
Sent from my TA-1012 using XDA Labs
I can't change any mobile network settings, because my sim card is detected only for a few seconds and then it's not, so it keeps turning it on and off.
Now I've tried my phone with two sim cards, my brother's (which worked fine on its own) and mine, and turns out that with my sim the other sim doesn't work either.
Same problem here...
every sim card works on the nokia 8 except the one that needs to work...
every other telephone works fine with said sim...
It is a complete new phone so we never tried it with an earlier version than android 8.1
Same problem here, I'm not sure if I downgrade the phone to 7.1 will it work again
Hello,
I have quite similar problem with my phone apart the fact that it was working perfectly with data until I receive Android Oreo 8.1 update (security update 1st Mai 2018). Since this upgrade data doesn't work with my SIM into Slot 1.
When I use the same SIM into slot 2 (hybrid slot that normally contains my memory card) then Data is back.
Do you have the same on your phone?
PS : I've contacted Nokia and their answer is : We have a lot of users reporting this, we are working on it.... I'm miss my old samsung S5....at least the updates were tested before release.
Nokia hotspot failed
I have the similar problem as I've changed the service provider. The new service has 50GB data volume. When turned the hotspot on for wifi sharing with my family, this function did not work but it was showing other devices had connected to the Nokia 8 but unable to use the wifi sharing. Therefore, I inserted the new 50GB sim to my daughter's iPhone 6 and it was running well when turned the iPhone 6 hotspot on. i.e. the sim card got nothing wrong. I did ask Nokia support and they did not find any issues on my Nokia 8. I reckon that must be the phone software / firmware problem as I could share the wifi for my family before I switched to the new service provider. Hope Nokia fix up this issue when they launch the new update. I feel depressed on this brand. I'd been using iPhones & Google Nexus 5 were running perfectly except Nokia.
Nokia 8 SIM card and WiFi not found
Hi,
I am having an extreme problem with my Nokia 8 Model TA 1012
My Sim Card is not detecting as well as WiFi. I have done Network reset and Factory reset too. My SIM card is working in other mobiles so SIM card has no any issue. I have tried with other SIM cards too.
So guys, any solution??
It has a solution ?
Hi. I have the same problem.
What was the solution?
Thank you.
It has a solution ?
Hi. I have the same problem.
What was the solution?
Thank you.
jonesvn said:
Sorry if this kind of problem has come up before, but I couldn't find anything similar to this so I decided to ask you guys if you have seen this before.
So, my problem started out of nowhere, my Nokia 8 (TA-1004) lost wifi and mobile data. I can't connect to wifi anymore and I have no service.
So here comes the weird part. My sim works in every other phone I've tested it, it just doesn't work in mine, AND every other sim card I've tested in my phone
works fine. My sim also blocks my wifi somehow, if it's inserted, it keeps turning off my phone's wifi, no matter how many times I keep turning it on. If I take
sim out, wifi works fine.
I forgot to mention that when this first occurred, I managed to get it work by turning on my phone with my brother's sim inserted, then switching his sim to mine without turning the phone off.
If I turned it off, the problem came back. Now, after Oreo 8.1 update and new sim-card, even this method doesn't work. Nothing has worked since.
Here's what I've done:
-Got new sim-card
-Factory reset through settings
-Wipe data/factory reset through recovery
-I called my operator, they didn't know what the problem is. They recommended to send my phone to manufacturer, but I hope it doesn't come to that. And maybe they
would try their sims in my phone and they would think there is no problem so no need to do anything.
Any help is highly appreciated, thanks
Click to expand...
Click to collapse
---------- Post added at 06:35 AM ---------- Previous post was at 06:32 AM ----------
Hi.
I am very sad
I have the same problem.
What was the solution?
Thank you.
Hey there,
I'm having the cellular connection dropping out 80% of the time and then coming back on randomly 20% of the time since the latest beta update (build 00WW_5_110_SP01).
I asked to revert back to the latest stable build OTA several days ago and still no notification.
Nokia 8 sim and wifi not working hang on settings imei missing baseband missing
jonesvn said:
Sorry if this kind of problem has come up before, but I couldn't find anything similar to this so I decided to ask you guys if you have seen this before.
So, my problem started out of nowhere, my Nokia 8 (TA-1004) lost wifi and mobile data. I can't connect to wifi anymore and I have no service.
So here comes the weird part. My sim works in every other phone I've tested it, it just doesn't work in mine, AND every other sim card I've tested in my phone
works fine. My sim also blocks my wifi somehow, if it's inserted, it keeps turning off my phone's wifi, no matter how many times I keep turning it on. If I take
sim out, wifi works fine.
I forgot to mention that when this first occurred, I managed to get it work by turning on my phone with my brother's sim inserted, then switching his sim to mine without turning the phone off.
If I turned it off, the problem came back. Now, after Oreo 8.1 update and new sim-card, even this method doesn't work. Nothing has worked since.
Here's what I've done:
-Got new sim-card
-Factory reset through settings
-Wipe data/factory reset through recovery
-I called my operator, they didn't know what the problem is. They recommended to send my phone to manufacturer, but I hope it doesn't come to that. And maybe they
would try their sims in my phone and they would think there is no problem so no need to do anything.
Any help is highly appreciated, thanks
Click to expand...
Click to collapse
I have same problem in my nokia 8 if anyone found solution please help. If i found solution i will help you.
jonesvn said:
Sorry if this kind of problem has come up before, but I couldn't find anything similar to this so I decided to ask you guys if you have seen this before.
So, my problem started out of nowhere, my Nokia 8 (TA-1004) lost wifi and mobile data. I can't connect to wifi anymore and I have no service.
So here comes the weird part. My sim works in every other phone I've tested it, it just doesn't work in mine, AND every other sim card I've tested in my phone
works fine. My sim also blocks my wifi somehow, if it's inserted, it keeps turning off my phone's wifi, no matter how many times I keep turning it on. If I take
sim out, wifi works fine.
I forgot to mention that when this first occurred, I managed to get it work by turning on my phone with my brother's sim inserted, then switching his sim to mine without turning the phone off.
If I turned it off, the problem came back. Now, after Oreo 8.1 update and new sim-card, even this method doesn't work. Nothing has worked since.
Here's what I've done:
-Got new sim-card
-Factory reset through settings
-Wipe data/factory reset through recovery
-I called my operator, they didn't know what the problem is. They recommended to send my phone to manufacturer, but I hope it doesn't come to that. And maybe they
would try their sims in my phone and they would think there is no problem so no need to do anything.
Any help is highly appreciated, thanks
Click to expand...
Click to collapse
I have same problem TA-1004 its wifi and sim not working also some time show TA-1012 if i restart its show again TA-1004.
I tried all but nothing worked
8.1 to 9.0 updated not solved
Downgrade 9.0 to 8.1 not solved
Also downgraded on 7.0 problem still same
Bootloader unlock magsik installed twrp intalled, flashed with OST both versions 6.0.4&6.1.2
problem not solved
All packages(9.0pie,8.1oreo,7.1nouget) i flashed problem not solved becuse update package is 1.6gb size its not complete firmware.
I found complete firmware on firmwarex. Com
7.1 size 2.8GB its complete firmware package but problem is its flashable only in EDL mode with QFile tool.
Nokia 8 edl mode i not found on google test point or any method for reboot into EDL (hsusb qloader 9008)
I tried fastboot reboot-edl, adb reboot edl, boot partition delete with twrp but phone not boot into edl.
Please any have solution for nokia 8 reboot into edl please help.
Its last solution boot into edl and flash full firmware
If problem not solved after flash. Thats mein its related to hardware
I am facing the same problem... any solution?
My mother have been plagued by this as well no 2g, 3g or 4G/LTE connection, my sim-card works great. Her own doesn't, although it does in my phone. Have any of you solved this?

Wifi+ after Android 10

I recently updated to Android 10 on my P30 Pro. Since the update, my mobile data does not switch on after leaving wifi. When I leave a known wifi and try to access the internet, I get a notice I'm offline. I can still receive calls and texts.
I have wiped my cache, reset network settings, and even factory reset. Everything worked fine before update. It works if I restart my phone but that's a hassle every time I need Internet. I have asked in several forums, including Huawei.
Anyone else have this issue? I have 10.0.0.173 software version on VOG-L29 (C185).
hatgirl223 said:
I recently updated to Android 10 on my P30 Pro. Since the update, my mobile data does not switch on after leaving wifi. When I leave a known wifi and try to access the internet, I get a notice I'm offline. I can still receive calls and texts.
I have wiped my cache, reset network settings, and even factory reset. Everything worked fine before update. It works if I restart my phone but that's a hassle every time I need Internet. I have asked in several forums, including Huawei.
Anyone else have this issue? I have 10.0.0.173 software version on VOG-L29 (C185).
Click to expand...
Click to collapse
Not sure if related, but I have read a few people saying they had issues with mobile data since updating to 10, and one solution was in the APN settings, the password box was empty rather than showing *********
Don't remember how it was fixed, but possibly look up your carriers APN settings password and enter it into that field
Thanks, I will give it a try.
I reset the APN and removed the prefilled "none" from some settings and every thing is good now. Thanks because I really did not want to rollback.
hatgirl223 said:
I reset the APN and removed the prefilled "none" from some settings and every thing is good now. Thanks because I really did not want to rollback.
Click to expand...
Click to collapse
Great

Data Connection Problem

Let me preface this with this issue began with the February security update. I cannot say for certain that they are related, however it’s difficult to believe that they are not. Tuesday after installing the February security update my phone and lost the ability to connect to Tmobile’s data network. It can still call, text, send MMS, and run speed tests. I’ve been working with one of the engineers at Tmobile corporate in Bellevue Washington. They have gone above and beyond looking at the switch, refreshing my account By suspending and reactivating it. They have had my Sim card swapped multiple times. When I put my Sim card into my old phone I have data connectivity like normal. Does anybody hear have any insight or anything to try on a pixel five to possibly undo whatever the February security update did.
Update. Best Buy replaced the phone outside of normal warranty. As soon as it got the February security update the problem is back.
Clear system cache.
Do a network reset.
Double check all related settings.
Now you know why I don't update...
blackhawk said:
Clear system cache.
Do a network reset.
Double check all related settings.
Now you know why I don't update...
Click to expand...
Click to collapse
Done, done, and done. This is phone number 2 now. Problem does not follow my sim. Works fine in iphone 10s and a Samsung Note 20.
b0gman said:
Done, done, and done. This is phone number 2 now. Problem does not follow my sim. Works fine in iphone 10s and a Samsung Note 20.
Click to expand...
Click to collapse
Ouch. That sucks.
Try a factory reset if you haven't.
Most likely it was the update.
If a reload doesn't get it, reflash the firmware.
It may be a hardware failure if a reflash to the last known good rom doesn't get it.
blackhawk said:
Ouch. That sucks.
Try a factory reset if you haven't.
Most likely it was the update.
If a reload doesn't get it, reflash the firmware.
It may be a hardware failure if a reflash to the last known good rom doesn't get it.
Click to expand...
Click to collapse
Don't have time for any of that anymore sadly. Best buy does kick ass they swapped me into a S20 FE. Did get an email from google acknowledging that this is a known bug since January.
Go into settings and check your APN settings. I had to delete one and switch to another to get my data working again.

No mobile network connection, no IMEI

Hello,
my Xiaomi Mi 9T Pro running on stock MIUI Global 12.5.1.0 (RFKEUXM) can now suddenly not connect to my mobile carrier.
I hope somebody can help me out.
Some facts and stuff I have tried:
The connectivity icon on the top is just grayed out now and shows an X.
But that was not the case in the morning today.
At that time it showed full bars, but not the usual 4G text and the mobile internet did not work. After some attempts written below it is now just gray.
Mobile internet and cell service do not work.
I have rebooted multiple times.
The IMEI for both SIM slots is shown as 0.
No baseband version is shown.
(I am sure that this was also not the case early in the morning.)
I have never installed a custom ROM on this device, bootloader was never unlocked.
The SIM card is correctly inserted and the phone number is shown in the settings for SIM slot 1.
Trying SIM slot 2 (incl. reboot) did not fix the problem.
The SIM status shows that the service is not available, also on the top left when the phone is locked. ("Dienst nicht verfügbar" in German locale.)
Trying the SIM in another phone works, which I think makes it not a carrier problem.
Trying another SIM in my phone also does not work.
I unfortunately had dropped the phone days before, but no damage visible at all (phone case FTW).
Also it worked without problems, which makes me hope this is not hardware related.
WLAN works, so internet connectivity is possible.
Phone is out of warranty.
I did search for other threads with similar issues, but they all seem to be related to having flashed custom ROMs and then losing the IMEI.
Does somebody have any idea how I can fix this?
Thank you!
Edit: I just remembered/saw that I did do the "Xiaomi Service Framework" system app update to version 6.0.6-G yesterday night, maybe that caused the problem? Currently researching on how to roll that back. If somebody knows, please do tell.
@Philipp said:
Hello,
my Xiaomi Mi 9T Pro running on stock MIUI Global 12.5.1.0 (RFKEUXM) can now suddenly not connect to my mobile carrier.
I hope somebody can help me out.
Some facts and stuff I have tried:
The connectivity icon on the top is just grayed out now and shows an X.
But that was not the case in the morning today.
At that time it showed full bars, but not the usual 4G text and the mobile internet did not work. After some attempts written below it is now just gray.
Mobile internet and cell service do not work.
I have rebooted multiple times.
The IMEI for both SIM slots is shown as 0.
No baseband version is shown.
(I am sure that this was also not the case early in the morning.)
I have never installed a custom ROM on this device, bootloader was never unlocked.
The SIM card is correctly inserted and the phone number is shown in the settings for SIM slot 1.
Trying SIM slot 2 (incl. reboot) did not fix the problem.
The SIM status shows that the service is not available, also on the top left when the phone is locked. ("Dienst nicht verfügbar" in German locale.)
Trying the SIM in another phone works, which I think makes it not a carrier problem.
Trying another SIM in my phone also does not work.
I unfortunately had dropped the phone days before, but no damage visible at all (phone case FTW).
Also it worked without problems, which makes me hope this is not hardware related.
WLAN works, so internet connectivity is possible.
Phone is out of warranty.
I did search for other threads with similar issues, but they all seem to be related to having flashed custom ROMs and then losing the IMEI.
Does somebody have any idea how I can fix this?
Thank you!
Click to expand...
Click to collapse
Did you check Settings, SIM cards and Mobile networks, SIM 1 (if SIM is in Slot 1)
Do you have Turn on? If Turned Off, then do Turn On
If not, ie if it does not recognize the SIM card, then it looks like a hardware issue
Assuming, as you say, that SIM card is ok, correctly inserted, and that phone runs only the stock firmware - hence no root, no custom ROM, no custom Recovery (that user could possibly wipe partitions), etc
Maybe, some connection got loose and later disconnected completely
Thanks for you answer.
I am sure the SIM is inserted correctly and working. It's been in there probably for years now.
Don't know if you saw my update above about "Xiaomi Service Framework". Checking that right now. Maybe I should just do a factory reset.
What I have noticed now a couple of times is that the phone crashes and reboots, just now happened when I connect for USB debugging or before when trying to enter the SIM pin after a reboot, ...
@Philipp said:
Thanks for you answer.
I am sure the SIM is inserted correctly and working. It's been in there probably for years now.
Don't know if you saw my update above about "Xiaomi Service Framework". Checking that right now. Maybe I should just do a factory reset.
What I have noticed now a couple of times is that the phone crashes and reboots, just now happened when I connect for USB debugging or before when trying to enter the SIM pin after a reboot, ...
Click to expand...
Click to collapse
But if the phone does not recognize the SIM card, it would not ask for the SIM pin
zgfg said:
But if the phone does not recognize the SIM card, it would not ask for the SIM pin
Click to expand...
Click to collapse
Agreed, therefore I am sure the SIM is recognized. The phone even shows my number and the SIM has the carrier name.
@Philipp said:
Agreed, therefore I am sure the SIM is recognized. The phone even shows my number and the SIM has the carrier name.
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If the carrier name is recognized, then IMEI cannot be NULL
Very strange
Try to play with Preferred network type setting
Maybe something really got wrong with the updated Framework
zgfg said:
If the carrier name is recognized, then IMEI cannot be NULL
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Oh, I though the IMEI is device specific and should be there even without a SIM inserted.
@Philipp said:
Oh, I though the IMEI is device specific and should be there even without a SIM inserted.
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AFAIK too - but without IMEI it could not attach to the network and therefore cannot show carrier name
Hence strange, and/or the contradictory descriptions/observations
zgfg said:
AFAIK too - but without IMEI it could not attach to the network and therefore cannot show carrier name
Hence strange, and/or the contradictory descriptions/observations
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Ohh, sry there is a misunderstanding.
The carrier name is only shown as the NAME of the SIM card (I guess it is stored on there or the phone has remembered it). But there is NO connection or carrier name shown in the top notification bar.
@Philipp said:
Ohh, sry there is a misunderstanding.
The carrier name is only shown as the NAME of the SIM card (I guess it is stored on there or the phone has remembered it). But there is NO connection or carrier name shown in the top notification bar.
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Yeah but you still have unknown IMEI - that's something that should have not happened
Anyway, go to Preferred Network Type and try with Prefer 4G, Prefer 3G or Prefer 2G - maybe, with the updated Framework, something went wrong with the bands support or so
If it wouldn't help, then I'm out of the ideas how to solve
So I did do a hard reset now, and it worked for a short time (IMEI is back), then it doesn't again, and ... just now again. It really is not stable.
Thx. I will post updates when I know more.
Unfortunately the phone keeps crashing and rebooting when using it. It just freezes and restarts, and sometimes it takes a long time to restart (seems like a crash loop).
Twice I also saw some graphic artifacts (bright magenta and green) on a small part of the screen.
I don't think this is just a mobile network connection problem anymore.
BTW: I have installed an older version of Xiaomi Service Framework (also the hard reset reverted it to a much older version), but that did not help.
Hey!!
I hope you doing great
Did you manage to solve the issue?
@Fawad Hussain
Unfortunately I could not solve it, so I am not able to use the device anymore.
Btw, as far as I can see there is no current smartphone without a notch/punch hole which is not gigantic (ASUS Rog Phone 6).
Fawad Hussain said:
Hey!!
I hope you doing great
Did you manage to solve the issue?
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Same thing happened to me, I have managed to get it thanks to this guy in the video which I don't understand what he is saying but I just followed his steps, so if you are looking for a solution this video is.
But my device is not rooted and bootloader is locked, I tried ways but don't know how to root it or unlock bootloader properly

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