Database Develop

[Q] mobile network not available

Hello I'm having difficulties with my i9000.
The problem first started when I smashed my screen. Bought a replacement screen and middle plate frame bezel, including the home button flex cable. I also unfortunately damaged the loud speaker and thus replaced that also. Now everything is installed and the phone works great except for connecting to a network and making calls.
When I dial a number I get "Mobile network not found". When I check available network it finds my network and attempts to connect. Then I get a message this network is not available for this sim card, or something along those lines.
The sim card works in another android phone and other sim cards gives the same message.
The IMEI is intact and correct.
The phone is unlocked
I started on 2.2 and have flashed the firmware with many different types and still with the same message.
Now my question is this, how would changing the screen, middle plate & loud speak have this effect on the phone? Bear in mind that the phone still functioning with the cracked screen and making calls.
If anyone could help put me out of my misery it would be most appreciated.

Try flashing different modems now !

I'd say you might have disconnected a cable or forgot to reattach it. However, that might not explain that you do see the network sometimes. So yes, modem's probably a safe bet.

jayeshup said:
Try flashing different modems now !
Click to expand...
Click to collapse
Ok I'll try this, not quite sure how the changes I made would effect the modem.
davidsmit said:
I'd say you might have disconnected a cable or forgot to reattach it. However, that might not explain that you do see the network sometimes. So yes, modem's probably a safe bet.
Click to expand...
Click to collapse
All cables have been checked and triple checked, and the network is always visible to connect to. Thanks for the advice I'll try the modem, is there a particular one I should try? I'm in the UK and my phone provider is 3.

Tried various different modems, giving sometimes better signal quality and sometimes worse. None of them have any effect. The message i get when connecting to the network is "your sim card does not allow connection to this network". Which to me sound like it may be locked again. So I'm going to try and dig out the original sim card and try that.

Try some other network and check !

Tried other networks and still no joy. I've flashed it many times now, gone back to stock firmwares and nothing will work. Spoke to Samsung and they just tell me to plug it in to Kies, which does nothing. I'll take it to my nearest Samsung service centre and see if they can fix it.

1. In security remove SIM pin request at restart.
2. Reflash MODEM with odin
3. At searching network check (automaticly)

Xperia V Prototype?

Hi everyone,
I just bought a xperia v.
The question is, i tried to unlock the bootloader, but no blue LED!
When I go into service menu and check configuration for bootloader status... there is NOTHING!
When I insert an SIM Card I can enter my pin but have no signal!?
Does anyone have ideas how I could fix all this?
thanks

To unlock bootloader you need press the volume button on the up side when you increase volume then insert the usb cable.
If nothing else works then since I assume your smartphone is still locked then open pc companion, click start button from phone software update then click repair then continue the steps from there as I think maybe you should try install a clean firmware.

Hi thanks, for your quick reply. I did that already with Flashtool the latest 940 software. Should I try it again with pc companion?
Edit: Well, I tried with pc companion now, but it says that there is already the latest firmware installed!?
Any other idea?

I would really need some help guys! Does anyone know if the test point method works with the xperia V?

How can I give more details? I can attach some screenshots

I have connected my Xperia V with WiFi, suddenly there was a message that an update is available. I've accepted it, and now I have an app installed called "Dummy Application".... ANY IDEA?
Everything works, I just dont have network signal!???

AW: Xperia V Prototype?
Sent from my LT25i using xda app-developers app

AW: Xperia V Prototype?
Dummy app
Sent from my LT25i using xda app-developers app

That because you connected the usb cable straight away and turn your phone off then go through the steps I told you before connecting your smartphone to pc so do not connect your smartphone.

See screenshot steps below and click on blue colour circled.

I did that, but still nothing changed.

So you done ther repair job but the problem still exist?

AW: Xperia V Prototype?
Yes. Is it not possible to make calls with the prototypes? I have no network signal
Sent from my LT18i using xda premium

Can you tell is it micro sim card you using or was it a normal sim card hence did you cut it with a sim card cutter by any chance please?
Would you have another micro sim card to put in or order some free pay as you go micro sim card or something to see if the problem is the sim card.
So might be the problem with your sim card itself.

Well, I've tried it with different micro sim cards from different providers. When I search for networks, I can see my home network, but as I try to login it says "Not able to register and so on."
Unter the battery is no information, wether IMEI or anything else. It is clearly a prototype!
I was able to flash any firmware with Flashtool, everything works fine, Wifi, Cam, Apps, but I just cant get any network signal.
Any other ideas, how to get it to work?

Well I afraid I cannot I done my best to help, not sure where you got this prototype clearly looked it an early version where it was used in an lab, the hardware inside has not been made yet to get the signal or it simply broken.
So where did you get this prototype?

I bought it from a person of a local internet shop, but gave it now back to him, because i tried almost every single micro sim card from various providers, and it just won't work. I think you could be right, perhaps it is a very early production or simply broken.
Thanks anyways
Edit: He used his own sim before, so I don't think it is broken.

[Q] No network issue LG Optimus 4x HD

Hi guys,
I have a LG Optimus 4x HD with stock rom (Jelly bean). About three weeks ago, I suddenly lost my network connection and it looked like my phone didn't recognize my SIM card. I put my battery and my Sim out and in my phone, but that didn't help. I tried many SIM cards and they work excellent on my other phone. When I turn my device on It just boots up and doesn't ask for my pin code at all. I see no difference when my SIM card is in or out my device. However, it does recognize my SD card, so I think there is a problem with the software? On the lock screen I just see the message ''no service'' and at the top I see this (first pic). When I try to dial someone it says ''reorganization of internal processes. Try it later.''. I read on a forum that I had to go to ''mobile networks'' in settings, but that isn't possible (pic 2).I also tried to put some paper between my sim card and my sim card slot but that didn't work either. Does someone have this problem too or is there somebody who can help me to solve this problem? Your help would be greatly appreciated.

Tob1234 said:
Hi guys,
I have a LG Optimus 4x HD with stock rom (Jelly bean). About three weeks ago, I suddenly lost my network connection and it looked like my phone didn't recognize my SIM card. I put my battery and my Sim out and in my phone, but that didn't help. I tried many SIM cards and they work excellent on my other phone. When I turn my device on It just boots up and doesn't ask for my pin code at all. I see no difference when my SIM card is in or out my device. However, it does recognize my SD card, so I think there is a problem with the software? On the lock screen I just see the message ''no service'' and at the top I see this (first pic). When I try to dial someone it says ''reorganization of internal processes. Try it later.''. I read on a forum that I had to go to ''mobile networks'' in settings, but that isn't possible (pic 2).I also tried to put some paper between my sim card and my sim card slot but that didn't work either. Does someone have this problem too or is there somebody who can help me to solve this problem? Your help would be greatly appreciated.
Click to expand...
Click to collapse
I discovered that my phone doesn't have an IMEI and IMEI SV code anymore. It also doesn't have an baseband version. Do you guys know this caused the lost of my network connection and does anyone know how I can recover my IMEI number? Finally I managed to enter the mobile networks in settings by do a long tap on the data icon in the notification center. I hope someone can help me.

I have the same problem as you. With every restart the phone is unable to read the sim card. Also the baseband is shown as unknown, and I don't have imei no. The solution for me is to remove the battery, and put the phone in the refrigerator for 10 minutes.(yes in the refrigerator The phone is getting very hot when is searching for network and to have it really cool helps apparently. Try it yourself to see if it does the job for you and let us know.

dracool84 said:
I have the same problem as you. With every restart the phone is unable to read the sim card. Also the baseband is shown as unknown, and I don't have imei no. The solution for me is to remove the battery, and put the phone in the refrigerator for 10 minutes.(yes in the refrigerator The phone is getting very hot when is searching for network and to have it really cool helps apparently. Try it yourself to see if it does the job for you and let us know.
Click to expand...
Click to collapse
Thanks for your reply! This morning, my phone finally asked for the first time for the sim password and I finally got a signal. I got my IMEI and my baseband number back. Unfortunately, after an hour or so I tried to send a sms and I wasn't able to send it. I got the error no USIM or so. The IMEI and Baseband number disappeared agian. I turned flightmode on and of and I didn't get a signal again... New today was that I am now unable to connect to multiple wifi networks too. Now my WI-FI MAC-adress is 00:00:00:00:00:00. I already lost the phone and I now also lost the smart part of my smartphone... I also tried to put my phone in the refrigerator but sadly it didn't help. I think I have to buy a new phone....

Tob1234 said:
Hi guys,
I have a LG Optimus 4x HD with stock rom (Jelly bean). About three weeks ago, I suddenly lost my network connection and it looked like my phone didn't recognize my SIM card. I put my battery and my Sim out and in my phone, but that didn't help. I tried many SIM cards and they work excellent on my other phone. When I turn my device on It just boots up and doesn't ask for my pin code at all. I see no difference when my SIM card is in or out my device. However, it does recognize my SD card, so I think there is a problem with the software? On the lock screen I just see the message ''no service'' and at the top I see this (first pic). When I try to dial someone it says ''reorganization of internal processes. Try it later.''. I read on a forum that I had to go to ''mobile networks'' in settings, but that isn't possible (pic 2).I also tried to put some paper between my sim card and my sim card slot but that didn't work either. Does someone have this problem too or is there somebody who can help me to solve this problem? Your help would be greatly appreciated.
Click to expand...
Click to collapse
Sorry to say that "It's time to say goodbye"
I got same problem with you and try all kind of possibility. Here is final verdicts:
- Some phone repairers I know said It's the encrypted baseband partition is damaged, unless you have backup of that, it's a no-go
- I've tried to reflash the phone and it will stuck at 10%, you have to push really hard at some point at the back to make is flashable. After that, the signal back on with baseband and IMEI.... but only for a few restarts it will be gone

Hi blbterminator,
I already said goodbye to my p880 (has been replaced for the G3), but thanks for your reply. Now it's clear for me that's it's a hardware issue.
Maybe do you know if this problem only affects the lg p880 or other brands or models too?
Many thanks!
klbterminator said:
Sorry to say that "It's time to say goodbye"
I got same problem with you and try all kind of possibility. Here is final verdicts:
- Some phone repairers I know said It's the encrypted baseband partition is damaged, unless you have backup of that, it's a no-go
- I've tried to reflash the phone and it will stuck at 10%, you have to push really hard at some point at the back to make is flashable. After that, the signal back on with baseband and IMEI.... but only for a few restarts it will be gone
Click to expand...
Click to collapse

No signal and can not find network manually

I have replaced the screen for my Sony Z3. After I did that it shows no signal and I am not able to search for network manually either. It is just searching.... When I try to call it says "no radio". Any suggestions?

Missing antenna connection
hjna said:
I have replaced the screen for my Sony Z3. After I did that it shows no signal and I am not able to search for network manually either. It is just searching.... When I try to call it says "no radio". Any suggestions?
Click to expand...
Click to collapse
Two suggestions before panic mode:
1. Remove and reseat your SIM Card. During the repair you may have dislodged it.
2. If you did the installation yourself, go back and check to see if you dislodged or broke the antenna connection during your repair. Schematic available online. If someone else performed the screen replacement, have them give it a check.
There is a YouTube video on dis-assembly (I can't post links yet)
Know that if you go to Sony Support they will instruct you to do a repair via PC Companion -- be prepared and back up anything you don't want to lose.
Good luck

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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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