Hello!
Is there anyway to fix the IMEI "0000000000" in S20 Ultra? it is an demo phone. WiFi and Bluetooth wors perfect! Just that when i insert SIM Card it just a "stop" sign at the statusbar and it says "No service" I know a replacing of mobo is a solving thing but to expensive (haha)
Afraid not, if it does not have an IMEI, it cannot be used on a cellular network.
Related
Hello!
I need help. My BA won't work with my SIM card (which is good... verified in another cell phone). The only info I get on the Phone screen is: "The SIM card is not valid" (but it IS valid!!), and the info about the emergency calls. To be more precise: My BA was working good. It was recognizing SIM card good. I disassembled my BA to verify the microphone (it doesn't work BTW). After I've assembled the BA again... SIM card wasn't recognized.
Is it possible that I've broken something and there is no connection?
PLEASE HELP ASAP !!
edit:
Another question is: What do those letters "R", "G", "D" mean when I restart my BA? Maybe it is connected with my problem somehow, because for the "R", and "G" there is only "NONE" (Before the SIM card problem I think, there was something else than "NONE")
laza said:
Hello!
I need help. My BA won't work with my SIM card (which is good... verified in another cell phone). The only info I get on the Phone screen is: "The SIM card is not valid" (but it IS valid!!), and the info about the emergency calls. To be more precise: My BA was working good. It was recognizing SIM card good. I disassembled my BA to verify the microphone (it doesn't work BTW). After I've assembled the BA again... SIM card wasn't recognized.
Is it possible that I've broken something and there is no connection?
PLEASE HELP ASAP !!
edit:
Another question is: What do those letters "R", "G", "D" mean when I restart my BA? Maybe it is connected with my problem somehow, because for the "R", and "G" there is only "NONE" (Before the SIM card problem I think, there was something else than "NONE")
Click to expand...
Click to collapse
the r is for the radio rom version
the R and G are showing none but will become ok after a soft reset (hopefully) it happened with me ...... place the sim properly in the slot and them retsart the ba .... else try and use a different sim .... the R and G have to show some value and not NONE
Hi there,
I have been having a very weird issue with my phone lately, I originally put a Simcard in my S3 and it happened to bend the Simcard reader pins. After purchasing a new model of the Simcard tray and getting it installed by a professional (OEM Part) It does not read my Simcard, instead it gives me a notifcation "Emergency Calls only" When putting the same Simcard into another same model (Samsung Galaxy s3 i747) It picks up a signal automatically. However, what is the weird issue is... When putting a bell/virgin simcard into my current phone it picks up a signal (Able to pickup calls & Send Messages) How can this be?
PS. I am almost certain this phone is Unlocked.
Thanks for your contributions.
Abdullah988 said:
Hi there,
I have been having a very weird issue with my phone lately, I originally put a Simcard in my S3 and it happened to bend the Simcard reader pins. After purchasing a new model of the Simcard tray and getting it installed by a professional (OEM Part) It does not read my Simcard, instead it gives me a notifcation "Emergency Calls only" When putting the same Simcard into another same model (Samsung Galaxy s3 i747) It picks up a signal automatically. However, what is the weird issue is... When putting a bell/virgin simcard into my current phone it picks up a signal (Able to pickup calls & Send Messages) How can this be?
PS. I am almost certain this phone is Unlocked.
Thanks for your contributions.
Click to expand...
Click to collapse
Check the APN settings and make sure they are set to your carrier.
DarthDerron said:
Check the APN settings and make sure they are set to your carrier.
Click to expand...
Click to collapse
Could this be the actual issue? Since I am using the "PETRO CANADA MOBILITY" Sim/Network, And it does run/associated on the "Rogers Wireless Network" When booting up my phone it does detect a "Petro Canada Mobility" network in the phone menu after searching. However when pressing on it, it fails by saying "No Service Detected" Then quickly re-searches and hooks up to "ROGERS WIRELESS" (Also Gives me 4G DATA connection) Rogers - which is the factory setting APN setting. However, when placing a call it tells "Mobile Network Unavailable" why does this seem not to be the case when I put in a Virgin Mobile sim or Bell Mobility simcard?
I will try to change the APN hopefully this well effect the outcome. :good:
Hi,
Please can someone help? I have an unlocked HTC 8S phone (purchased from eBay), but no matter which SIM I use I get a "No Signal" message on the phone.
The phone detects the SIM cards (I've tried Three, Sainsburys, and O2) and it downloads the connection/configuration data, but I get a "No Signal" message - so I can't make calls or send texts. I can go on the Internet though...
Is there a problem with SIM card slot? Maybe the aerial?
Thinking about it now, perhaps the phone was stolen and original owner has blocked it(?) Would the above issues be as a result of a blocked phone?
Thanks,
Paul
Replaced Mainboard - "Not registered on network", Network bars & IMEI present
Hello, my Note2 phone had a call problem (would dial but no audio/voice) so I bought a cheap replacement board (ie no guarantee), seller said it needed firmware fix.
Swapped over and on boot saw a Kies prompt to reset firmware load - so I flashed TWRP and a Lineage rom in Odin and brought it back to life.
However, Network strength was zero and no calls possible. After many tweaks, swapping SIM cards, I reflashed stock 4.4.2 rom. Now I have good signal strength in the taskbar, my board IMEI is present but the dialler returns "not registered on network". Phone status shows signal strength, correct network but Service State - out of service and Mobile network state - Disconnected. Just flashed MODEM.tar.md5 but no change there.
Could this be a hardware issue? ie why the board was cheap? If so, is it the SIM reader (ie replaceable) or other component? Happy to cannibalise parts from 2 boards to make one working. Or maybe another soft issue I am not aware of?
thx
The sim card and SD card reader are contained in the same part and is swappable.
Does the phone detect a sim card? Is it possible the imei has been blacklisted?
audit13 said:
The sim card and SD card reader are contained in the same part and is swappable.
Does the phone detect a sim card? Is it possible the imei has been blacklisted?
Click to expand...
Click to collapse
Tried swapping that part, no joy; when I remove SIM and reboot I get the no sim card message. Yes a blacklist is possible who knows.
Considering throwing in the towel now, my main Note 2 makes calls, but has no NFC and no audio via jack; my 2nd cannot make/receive calls and now the 'replacement' board is possibly toast. Might just part out the lot and get a new phone now
You can check the imei for blacklisting here: https://swappa.com/esn
Hello everybody i have Samsung Galaxy s21 FE 5G "SM-G990B/DS" Snapdragon 888.
I bought the phone second hand knowing it is problematic,
The problem is that when a sim card is inserted the phone asks for the pin code then once the pin is entered it knows if the pin is correct or incorrect, i enter the correct pin but then nothing happens. In the status bar there is that *no sim inserted* symbol. Once i connect to a wifi network and turn wireless calling feature on, calling and sms function of the phone starts working with inserted sim card. Long story short without wifi connection sim doesn't work at all. I hope i've described my problem clearly.
i can provide every bit of information about the phone.
Thanks in advance to anyone who helps.
Edit: I have tried re-flashing a new firmware via odin.
Perhaps the calls work over WiFi, because the SIM provider allows you to make calls over WiFi through the google carrier service.
So, you probably have a faulty RIL as the SIM card was read correctly.
What possible way i can fix it? I can't find many sources about s21 fe since its a relatively new device and not very popular around devs.