The phone does not see any SIM. Version TELUS. Need help... - Essential Phone Questions & Answers

Hello everyone I bought the second hand used essential phone version of TELUS on ebay. The phone does not see the SIM card of any cellular operators. Emergency calls only. Unlock code does not ask. In Sim-Status menu - network/signal/cellular network type/operator/imei/iccid - all not awailable. In imei information menu - imei is ok. I tried to change the firmware, tried all versions starting with Android 7. I tried to change the modem version, does not help. What can you advise? Maybe the phone has a broken SIM receiver?
Bootloader:
Variant - TELUS
Bootloader - mata-43cf58f
Baseband - 2.0.c4-M1.3.1
Secure boot - yes
Device state - unlocked

Inetstudio said:
Hello everyone I bought the second hand used essential phone version of TELUS on ebay. The phone does not see the SIM card of any cellular operators. Emergency calls only. Unlock code does not ask. In Sim-Status menu - network/signal/cellular network type/operator/imei/iccid - all not awailable. In imei information menu - imei is ok. I tried to change the firmware, tried all versions starting with Android 7. I tried to change the modem version, does not help. What can you advise? Maybe the phone has a broken SIM receiver?
Bootloader:
Variant - TELUS
Bootloader - mata-43cf58f
Baseband - 2.0.c4-M1.3.1
Secure boot - yes
Device state - unlocked
Click to expand...
Click to collapse
Think someone had similar problem before, they found there was a small piece if plastic/metal or something blocking the SIM contacts (or was that they couldn't put SIM in slot?) they were able to move it with tweezers and get phone to work.
(Though yours could be something else of course)

Related

Htc tytn help needed

Hi everyone i need abit of help.
iv recently got a HTC TYTN from a friend but it has no network, the phone operates well and i can play mp3's and videos(everything works fine). But there is no network when i search for one it gives me all the networks i need but does not register itself on the network according to the sim im using. The only time it gets a network if i turn off and on flight mode then i will search for network, but this hardly works iv had the phone for a month and i only got a network twice, but if turn off the phone and back on again i have to go through the same flight on and off procedure to get a network.
Please help.
either the phone is blocked by the IMEI number or you need to upgrade the radio rom
look on the wiki there are links there for radio roms
If the imei is blocked then you are screwed as nothing will unblock it except the network provider that blocked it originally
thanks man. Will try how do i check my bootloader version and radio bootloader.
i wouldnt worry about the bootloader version click start > settings > system > device info and it will tell you the radio version there. are you sure that the device worked ok on the sim provider you are using. What i mean is ,is the hermes unlocked to any network ,have you tried a sim from another provider?
when swithed it on it does not ask unlock codes or nething. it goes through but no network. im in south africa and we only have 3 service providers MTN,VODACOM and CELL C.
CELL C works only if i turn off and on flight mode, i got it right once. I tried the other sevice providers and nothing works.
radio version is 1.18.00.10
But for this radio rom thing to work dont i need RadioBootloader version 107 or less
so if you put another providers sim in the phone do you get this sign ! where the ariel strength should be? if so it may not be sim unlocked. But that will show even if it has been blocked. Was your friend on a contract and then stopped paying it so he gave you the phone or did you buy it from him
Yip i do get this sign !. im not sure where he got the phone from. i never bought it from him.
if you havent done so already install HARDSPL you can find the link here and the instructions how to do it as well
http://wiki.xda-developers.com/index.php?pagename=Hermes_HardSPL
thanks buddy gonna try it out.
once you have installed hardspl install this which will cid and sim unlock so you can flash any rom to the device and use any sim
ftp://xda:[email protected]/Hermes/Tools_and_Programs/HTC_Hermes_SIM_CID_Unlock_v3a.zip
I have a feeling though that your phone is blocked though mate, if it accepts one sim but not the others but worth a try anyway
You can download a new vision of your PPC's radio driver,I tihnk 1.47.30.10 is the best
Changing the Radio ROM isn't advised as this is a sure-fire way to brick your Hermes if something goes wrong with the flash.
If the phone IS blocked then no amount of OS or radio ROM changing is gonna fix.

Samsung Omnia 7 (i8700) invalid sim error. Please Help

Hello ,
You are my last hope before sending my phone to the service center.
The phone is an Omnia 7 (i8700) orange uk.
The phone was unlocked using an unlocked code service.
The problem is that the device stopped recognized any sim since I did a factory reset.
I have tried 3 different sim and i receive invalid sim or no sim error.
I flashed the phone to the latest firmware from samfirmware.com(I8700XXJK1) but no result.
I have tried the *#7465625# code and i get the following :
SIM/USIM Lock : disabled
Network Lock : disabled
Network Subset Lock : disabled
Service Provider Lock : Disabled
Corporate Lock : Disabled
The phone was working with my local Vodafone SIM till the factory reset.
Is there anything i can try?
Please Help...
When does the error appear?
You could try using the Network profile app? Or maybe a reflash?
Casey
Hi ,
When i open the phone i get the following error :
SIM error
The SIM card is missing ord invalid. You can still make emergency calls if your service provider supports it.
I updated Network Profile App from marketplace but Vodafone Greece or any other Greek carrier are not included.
I really dont understand. My Vodafone GR SIM was working normally until the reset.
I have also tried to SIM from different carriers with the same result.
What should i try?
Please help!
Do you beliave that it is a hardware or a software problem?
Looter said:
Hi ,
When i open the phone i get the following error :
SIM error
The SIM card is missing ord invalid. You can still make emergency calls if your service provider supports it.
I updated Network Profile App from marketplace but Vodafone Greece or any other Greek carrier are not included.
I really dont understand. My Vodafone GR SIM was working normally until the reset.
I have also tried to SIM from different carriers with the same result.
What should i try?
Please help!
Click to expand...
Click to collapse
Since you've flashed the I8700XXJK1 firmware, have you tried hard resetting? Just try that. Also, you could always try a full re-flash.
Looter said:
Do you beliave that it is a hardware or a software problem?
Click to expand...
Click to collapse
From the OP's postings it would seem that it's a software problem - else it was very unfortunate timing for a hardware failure.
Looter said:
Hello ,
You are my last hope before sending my phone to the service center.
The phone is an Omnia 7 (i8700) orange uk.
The phone was unlocked using an unlocked code service.
The problem is that the device stopped recognized any sim since I did a factory reset.
I have tried 3 different sim and i receive invalid sim or no sim error.
I flashed the phone to the latest firmware from samfirmware.com(I8700XXJK1) but no result.
I have tried the *#7465625# code and i get the following :
SIM/USIM Lock : disabled
Network Lock : disabled
Network Subset Lock : disabled
Service Provider Lock : Disabled
Corporate Lock : Disabled
The phone was working with my local Vodafone SIM till the factory reset.
Is there anything i can try?
Please Help...
Click to expand...
Click to collapse
I assume the sim card slot malfunctioned due to some hardware issue. It will not detect any sim card and will keep on generating errors. Re-flashing won't help either. It is better to return the phone in warranty and do not take any chances. There are good chances that the device will be replaced.
Regards.
omer1982 said:
I assume the sim card slot malfunctioned due to some hardware issue. It will not detect any sim card and will keep on generating errors. Re-flashing won't help either. It is better to return the phone in warranty and do not take any chances. There are good chances that the device will be replaced.
Regards.
Click to expand...
Click to collapse
The last hope that i have is to flash the device with the new firmware that is going to be released in the next days.
Is there any code from "##634#" menu that i can try to check if there is any lock in the phone?
Oddly, mine has just done the same thing. All of a sudden its telling me there is no Sim installed. Have tried multiple sims with no joy. Would like to format the device and start from scratch but i will lose all my contacts and sms's ...... brilliant
pezley said:
Oddly, mine has just done the same thing. All of a sudden its telling me there is no Sim installed. Have tried multiple sims with no joy. Would like to format the device and start from scratch but i will lose all my contacts and sms's ...... brilliant
Click to expand...
Click to collapse
I'm having the same problem, it just won't accept a Vodafone UK sim. I've just done a full re-flash following the instructions on winrumors.com about restoring a bricked Omnia 7.
Still no joy, just the same error message mentioned in the OP.
Any ideas what else to try?
Hello guys.
It seems that I am not alone with the SIM error problem
Are there any experts in the forum to help us?
Are there any steps to follow to ensure that the problem is software or hardware?
Is there any hope that the new software will fix our devices?
Please help!!!
The February update is back online for Omnia 7 devices.
I am installing the new software using Zune now.
Let's hope that our problem will be fixed...
UPDATE!!
Nothing changed with the latest update. Still getting invalid SIM error.
Update info :
OS version : 7.0.7008.0
Firmware revision number : 2424.10.11.1
Hardware revision number : 3.15.0.4
Radio software version : 2424.10.11.1
Radio hardware version : 0.0.0.800
Bootloader version : 4.11.0.3
Chip SOC : 0.36.2.0
READ ALL SW VERSION
CP SW VERSION : I8700XXJK1
HW VERSION : MP 0.800
FTA SW VERSION : I8700.004
FTA HW VERSION : REV1.2
RF cal Date : 2010.11.01
Looter said:
The February update is back online for Omnia 7 devices.
I am installing the new software using Zune now.
Let's hope that our problem will be fixed...
UPDATE!!
Nothing changed with the latest update. Still getting invalid SIM error.
Update info :
OS version : 7.0.7008.0
Firmware revision number : 2424.10.11.1
Hardware revision number : 3.15.0.4
Radio software version : 2424.10.11.1
Radio hardware version : 0.0.0.800
Bootloader version : 4.11.0.3
Chip SOC : 0.36.2.0
READ ALL SW VERSION
CP SW VERSION : I8700XXJK1
HW VERSION : MP 0.800
FTA SW VERSION : I8700.004
FTA HW VERSION : REV1.2
RF cal Date : 2010.11.01
Click to expand...
Click to collapse
Hi Looter,
Are you also on Vodafone UK? My Omnia still works with other networks, its just Voda which gives me the error message. I've tried three different working Vodafone sims now and they all give the same message.
Worryingly its the same error message that you get if you boot up the phone with no sim at all installed!
We need help please XDA guru's!
Doz007 said:
Hi Looter,
Are you also on Vodafone UK? My Omnia still works with other networks, its just Voda which gives me the error message. I've tried three different working Vodafone sims now and they all give the same message.
Worryingly its the same error message that you get if you boot up the phone with no sim at all installed!
We need help please XDA guru's!
Click to expand...
Click to collapse
Hi ,
I bought my Omnia 7 from Ebay.
It was Orange UK branded and sim locked.
I purchased the unlocked code and I was able to use my local greek SIM after unlocking it.
Since i did a factory restore , the phone does not recognize any of the local SIM that i have tried returning the invalid SIM error message.
I have tried Vodafone Greece , Cosmote Greece and Wind Hellas SIM cards with the same result.
Have you tried another unlock solution, like the Omnia 7 one available on FastGSM?
Maybe that will do the trick?
Doz007 said:
Have you tried another unlock solution, like the Omnia 7 one available on FastGSM?
Maybe that will do the trick?
Click to expand...
Click to collapse
I have tried the *#7465625# code and i get the following :
SIM/USIM Lock : disabled
Network Lock : disabled
Network Subset Lock : disabled
Service Provider Lock : Disabled
Corporate Lock : Disabled
The device shows that there is no SIM lock.
Can someone confirm if a second cody apply will fix the issue?
I think when the phone is SIM locked it returns a different error message and not "invalid sim" , isn't it?
Where are the forum gurus?
My device is showing the simlock as disabled also. I only get the error message when trying to use a Vodafone UK sim though. All other sim cards do not produce that error and instead they boot straight to the home screen.
I'm really tempted to try another unlock because nothing else has worked so this seems like the last option.
Doz007 said:
My device is showing the simlock as disabled also. I only get the error message when trying to use a Vodafone UK sim though. All other sim cards do not produce that error and instead they boot straight to the home screen.
I'm really tempted to try another unlock because nothing else has worked so this seems like the last option.
Click to expand...
Click to collapse
So when you use SIM cards different than Vodafone UK you don't receive the error message and you are able to make calls, correct?
I wish i had an orange uk SIM to try out.
Let's hope that someone with greater knowledge will help us soon...
Looter said:
So when you use SIM cards different than Vodafone UK you don't receive the error message and you are able to make calls, correct?
I wish i had an orange uk SIM to try out.
Let's hope that someone with greater knowledge will help us soon...
Click to expand...
Click to collapse
Yeah that's correct, in theory. The other sim cards are old Pay & Go sims that have been cut off due to not being used for around 8 years! But they boot straight to the home screen without the error message, just don't get any signal.
I've tried re-unlocking the phone as well and can confirm it was a waste of $20.
Samsung Focus
Hi, I bought my Focus off a dealer on eBay. It seems the problem is that once the device has been unlocked through services like fastGSM, when the phone is given a hard reset changes the setting applied. Any help would be greatly appreciated!!!!
Leyjee said:
Hi, I bought my Focus off a dealer on eBay. It seems the problem is that once the device has been unlocked through services like fastGSM, when the phone is given a hard reset changes the setting applied. Any help would be greatly appreciated!!!!
Click to expand...
Click to collapse
So , as far as i understand , the problem is software and not hardware.
Doz007 mentioned that his phone was still not able to recognize the different SIMS after applying the unlock code for second time.
You verified that the same problem exists in Focus after a hard reset so this is not a Omnia 7 only issue.
Please verify that the lock menu of your phone is in disabled status (check my previous post).
I am really surprised that none has any knowledge to help us with this issue.
Tons of service codes have been posted for our devices but we need some direct help in order to save our phones.

[Q] [Help] No network in L5 e612f with other sim but the original

Hi,
I came accross this problem that it's driving me nuts. Any help would be much appreciated.
DEVICE
L5 e612f - originally SIM locked to Telcel Mexico - trying to make it work with Spanish SIM and networks.
Rooted
Unlocked bootloader
Installed CWM recovery
Installed CM10.1 - also tried latest CM10 nightly 7/7/2013 and a stock LG Rom -> I experience the same problem
PROBLEM IN SHORT
The phone is SIM locked to Telcel Mexico.
I thought that rooting/unlocking bootloader/using a custom ROM would allow me to use other SIM but I don't know if I'm right.
Anyway, if I try to sim unlock it with a purchased code, I can't because the phone won't prompt me for an unlock code, either by using a non-allowed sim or using the codes for my phone.
Could this be because I'm not longer in Mexico and I'm using the device in Roaming mode?
For more details, please check hidden text.
MORE DETAILS
The phone will only search for and connect to networks if the original sim is inside. With another SIM, the phone won't detect or connect to any carriers.
If I put another SIM it won't give any error... it asks for the normal sim PIN and logs into the system, but no network is available.
The phone won't say the SIM is not allowed or ask me for an unlocking code it with a non original SIM
The codes to SIM unlock doesn't seem to work, I tried:
2945#*612#
2945#*71001#
2945#*610#
but the dialer returns
'USSD Code running'
and finally
''Connection problem or invalid MMI code'
With the original (Telcel Mexico) SIM everything goes OK.
With an Orange SIM from Spain, the phone asks for the normal SIM pin when I turn it on, then logs into the system and it won't connect to any network.
If I go to Settings - Wireless & Network - More - Mobile Networks - Network operators
a message pops in saying - 'Error while searching for networks'
The same message pops in if I tap on 'Search Networks'
If I tap into 'Choose Automatically' the phone says 'Registered on network', but the signal is still 0 and no carrier is selected.
If I tap into 'Choose Automatically' again, the phone returnns 'The sim card doesn't allow a connection to this network' after a minute or so saying 'Automatic Registration'
Extra data
With CM10 Nightly 7/7/2013 the phone has the same issue even with the original SIM inside
With stock Rom, I have the same issue as with CM10.1 (only works with original sim)
So my questions are:
1) Is my phone SIM locked even after unlocking bootloader + custom ROM?
2) If it is SIM locked, why is it allowing me to log with another SIM instead of showing a typical 'sim locked' message
3) If it's SIM locked, could I unlock it with a purchased code in Roaming mode... if so... how?
4) If I revert to an original Telcel firmware would it ask me for the unlocking code?
5) Tried adb fastboot oem unlock but the phone reboots and gets stuck into the fastboot screen - could this be a corrupted bootloader issue?
Many thanks in advance
dobert said:
Hi,
I came accross this problem that it's driving me nuts. Any help would be much appreciated.
DEVICE
L5 e612f - originally SIM locked to Telcel Mexico - trying to make it work with Spanish SIM and networks.
Rooted
Unlocked bootloader
Installed CWM recovery
Installed CM10.1 - also tried latest CM10 nightly 7/7/2013 and a stock LG Rom -> I experience the same problem
PROBLEM IN SHORT
The phone is SIM locked to Telcel Mexico.
I thought that rooting/unlocking bootloader/using a custom ROM would allow me to use other SIM but I don't know if I'm right.
Anyway, if I try to sim unlock it with a purchased code, I can't because the phone won't prompt me for an unlock code, either by using a non-allowed sim or using the codes for my phone.
Could this be because I'm not longer in Mexico and I'm using the device in Roaming mode?
For more details, please check hidden text.
MORE DETAILS
The phone will only search for and connect to networks if the original sim is inside. With another SIM, the phone won't detect or connect to any carriers.
If I put another SIM it won't give any error... it asks for the normal sim PIN and logs into the system, but no network is available.
The phone won't say the SIM is not allowed or ask me for an unlocking code it with a non original SIM
The codes to SIM unlock doesn't seem to work, I tried:
2945#*612#
2945#*71001#
2945#*610#
but the dialer returns
'USSD Code running'
and finally
''Connection problem or invalid MMI code'
With the original (Telcel Mexico) SIM everything goes OK.
With an Orange SIM from Spain, the phone asks for the normal SIM pin when I turn it on, then logs into the system and it won't connect to any network.
If I go to Settings - Wireless & Network - More - Mobile Networks - Network operators
a message pops in saying - 'Error while searching for networks'
The same message pops in if I tap on 'Search Networks'
If I tap into 'Choose Automatically' the phone says 'Registered on network', but the signal is still 0 and no carrier is selected.
If I tap into 'Choose Automatically' again, the phone returnns 'The sim card doesn't allow a connection to this network' after a minute or so saying 'Automatic Registration'
Extra data
With CM10 Nightly 7/7/2013 the phone has the same issue even with the original SIM inside
With stock Rom, I have the same issue as with CM10.1 (only works with original sim)
So my questions are:
1) Is my phone SIM locked even after unlocking bootloader + custom ROM?
2) If it is SIM locked, why is it allowing me to log with another SIM instead of showing a typical 'sim locked' message
3) If it's SIM locked, could I unlock it with a purchased code in Roaming mode... if so... how?
4) If I revert to an original Telcel firmware would it ask me for the unlocking code?
5) Tried adb fastboot oem unlock but the phone reboots and gets stuck into the fastboot screen - could this be a corrupted bootloader issue?
Many thanks in advance
Click to expand...
Click to collapse
Ok, I solved the issue so I'm leaving my answer here, in case someone ever has the same problem.
The problem with SIM lock is that CM doesn't work with the sim unlocking codes.
So to SIM unlock you have to revert to any original/stock firmware, unlock the sim, then you can use a custom firmware.
And SIM unlocking works with roaming... meaning that you don't even have to be in the original country/network to unlock.
dobert said:
Ok, I solved the issue so I'm leaving my answer here, in case someone ever has the same problem.
The problem with SIM lock is that CM doesn't work with the sim unlocking codes.
So to SIM unlock you have to revert to any original/stock firmware, unlock the sim, then you can use a custom firmware.
And SIM unlocking works with roaming... meaning that you don't even have to be in the original country/network to unlock.
Click to expand...
Click to collapse
My Telcel 612F is on original firmware with an orginal sim but when I dial 2945#*612 nothing comes up.
I heard you can flash an unbranded firmware to unlock, but I can't seem to find an unbranded firmware for 612F.
is there a way to unlock this phone?
metriod said:
My Telcel 612F is on original firmware with an orginal sim but when I dial 2945#*612 nothing comes up.
I heard you can flash an unbranded firmware to unlock, but I can't seem to find an unbranded firmware for 612F.
is there a way to unlock this phone?
Click to expand...
Click to collapse
Hi
I flashed the firmware from this website - http://lg-phone-firmware.com/index.php?id_mod=12
And it worked like a charm. I used v20A. Also check the code which is 2945#*612# and then the dial button.
Good luck!
dobert said:
Hi
I flashed the firmware from this website - http://lg-phone-firmware.com/index.php?id_mod=12
And it worked like a charm. I used v20A. Also check the code which is 2945#*612# and then the dial button.
Good luck!
Click to expand...
Click to collapse
There are some many 20A verison. just flash the same company as your own cell?
I have a Telcel so do this one? TCL/TELCEL(MEXICO) 20A LGE612F 356.47 MiB 1577
Are all those firmware unbranded, just flash the same company?
Thanks for your help.
metriod said:
There are some many 20A verison. just flash the same company as your own cell?
I have a Telcel so do this one? TCL/TELCEL(MEXICO) 20A LGE612F 356.47 MiB 1577
Are all those firmware unbranded, just flash the same company?
Thanks for your help.
Click to expand...
Click to collapse
Hi metriod... that's the one that I've flashed and worked for me. It is branded to Telcel tough, but after sim unlocking you can root and install any mod of your choice.
dobert said:
Hi metriod... that's the one that I've flashed and worked for me. It is branded to Telcel tough, but after sim unlocking you can root and install any mod of your choice.
Click to expand...
Click to collapse
Thank dobert!
a question
dobert said:
Hi
I flashed the firmware from this website - xxxx://lg-phone-firmware.com/index.php?id_mod=12
And it worked like a charm. I used v20A. Also check the code which is 2945#*612# and then the dial button.
Good luck!
Click to expand...
Click to collapse
A question you got the unlock code from the SIM directly with your carrier or with any app in particular?
Thanks in advance
Una pregunta donde obtuviste el codigo de liberacion de la SIM, directo con tu operador o con alguna app en particular?
De antemano gracias, si no esta bien en ingles, es la traduccion de google
Finally it works!!!
This worked for me as well, I spent a whole day triying to fix this issue, aparently THE ONLY WAY THAT THE UNLOCK MENU WILL COME UP is by using the 250 TCL/TELCEL(MEXICO) 20A LGE612F 356.47 MiB firmware.
I wanted also to share some knowledge that I gathered today.
After you flash this firmware, you will not be able to downgrade to any V10XXX.kdz. This includes the one that unlocks the bootloader and enables clockworkmod recovery menu V10D_unlock.kdz. The only way that I´ve found to overcome this was by using a kdz file designed to downgrade, is called V10D_downgrade.kdz that I´ve found over the net. I have a mediafire link but Im not shure if I can post it here.
DO NOT GET SCARED IF YOU CAN NOT GET INTO DOWNLOAD MODE no more (I almost cry), this is also caused by this firmware, instead of pressing vol+ and vol- while connecting to usb, just press vol- and connect the usb cable the use the V10D_downgrade.kdz if you want to downgrade or simply install cyanogen mod.
Regards.
bafler said:
This worked for me as well, I spent a whole day triying to fix this issue, aparently THE ONLY WAY THAT THE UNLOCK MENU WILL COME UP is by using the 250 TCL/TELCEL(MEXICO) 20A LGE612F 356.47 MiB firmware.
I wanted also to share some knowledge that I gathered today.
After you flash this firmware, you will not be able to downgrade to any V10XXX.kdz. This includes the one that unlocks the bootloader and enables clockworkmod recovery menu V10D_unlock.kdz. The only way that I´ve found to overcome this was by using a kdz file designed to downgrade, is called V10D_downgrade.kdz that I´ve found over the net. I have a mediafire link but Im not shure if I can post it here.
DO NOT GET SCARED IF YOU CAN NOT GET INTO DOWNLOAD MODE no more (I almost cry), this is also caused by this firmware, instead of pressing vol+ and vol- while connecting to usb, just press vol- and connect the usb cable the use the V10D_downgrade.kdz if you want to downgrade or simply install cyanogen mod.
Regards.
Click to expand...
Click to collapse
I offer a little more knowledge from what bafler said, for someone that can't downgrade the firmware from 4.1.2 original stock v20 to 4.0.3 stock v10, the trick is to root and install both CWM and Bootloader, then install a CM based rom, wait until its finished and booted up, enter in CWM menu and install a v10 baseband patch to downgrade it, see this post http://forum.xda-developers.com/showthread.php?t=2275969. Before that patch and doing some full wipes, you can flash the original stock firmware based on ICS with KDZ, using with the phone off Vol+ and Vol-, and connect the USB cable.
Hope it can save someone, was the only method that works for me. So sorry for my english, im from chile.

Axon 7 Mini not working oversees

Hello, hoping someone can help out, I bought a AXON 7 mini hoping to use it in Iraq, but it does not seem to want to register on any network outside the USA. In the USA I was using a Tracfone T-Mobile SIM and the phone worked great. As I traveled across Europe the phone would not connect to any networks (Germany and Turkey), I figured it was just the SIM not allowing roaming. When I got to Iraq I purchased a Korek SIM and still no dice. I phone sees two networks but will not show any service. I have tried SIM cards from other phones with active service and still nothing. I have even tried a SIM card from ASIACELL and still no dice, it sees the providers but will not show service on the network. When I click "automatically select network" the phone response "registered on network" but still no service. I have tried the usual reset all the way down to a factory reset.
MODEL# ZTE B2017G
Android version# 7.1.1
Baseband version TA.2.1.c1-00101-8976_GEN_PACK
Build # ZTE B2017G_USAV1.2.0B14
Thanks for the Help, Jeff
Flashing EU ROM
Could I safely flash the EU Firmware located here, https://forum.xda-developers.com/axon-7-mini/development/firmware-stock-firmware-t3696538 safely to my device. From what I have seen this may fix the problem.
Thanks, Jeff
Fixed, the long way
fosjef67 said:
MODEL# ZTE B2017G
Android version# 7.1.1
Baseband version TA.2.1.c1-00101-8976_GEN_PACK
Build # ZTE B2017G_USAV1.2.0B14
Click to expand...
Click to collapse
Phone now seems to be fully functional with aid of a lot of reading an testing. I can also replicate the issue consistently. The original issue seems that the pervious owner, or ZTE set the operating band to "United States." Once this has happened the seems to be locked to USA networks, even though it still sees the other networks. Using *#*#4636#*#* method, you can try to change the band, but only 2 options are there "800 cellular" and "United States," I tried to change to 800 but get the response "unsuccessful." So for the fix!
Thanks to all the hard work here, I was able to install the boot loader unlock update for my phone found here: https://forum.xda-developers.com/axon-7-mini/development/unlock-official-bootloader-unlock-t3690496
I then proceeded to install TWRP, backed up the entire system, and then installed Linage. Then used *#*#4636#*#* and the band now had a third option of "Automatic," selected that and bingo, service in Iraq. Recovered the phone with the backup and the fix stuck. Of point in Lineage there is five options in the band selection, 2 options are duplicates (USA and Auto), I assume for each SIM, and you have to select both autos otherwise only one SIM will work.
This probably could have been fixed with a ROOT application that allows you to enable additional bands, but I was never successful in ROOTing my phone.

SM-G950U1 (XAA) - Cellular network can't be found after update/reboot/cache-wipe

Hi All - hoping to get your help and advice.
Original S8 was a USA SM-G950U on T-Mobile that was successfully flashed and unlocked to SM-G950U1 (CSC = XAA). The phone was fully functional, successfully received OTA updates and was on the latest firmware (G950U1UES5CRL2) in use in Hong Kong (3HK 4G LTE) until yesterday when I did a hard-reboot and cache-wipe a few days after a system update and now the cellular radio won't connect to any network. I've tested the SIM card (works fine on other phones), rebooted without the SIM inside (no impact), tried upgrading to Android 9.0 as well as older Bootloader v5 firmware to see if the cellular radio would turn on and re-connect but no luck.
Current State: When looking under "Mobile networks", Network mode shows "Preferred network mode: CDMA/EVDO/GSM/WCDMA" whereas it used to be "LTE/3G/2G". This option is available under the drop down list but I can't selected it. Under "Network Operators", tapping "Search networks" results in an error "Error while searching for networks". Tapping "Select automatically" pops an error "Unable to connect. Try later".
After exhaustive testing, it feels like the phone is behaving like it's SIM-locked since everything else works thru wifi but it's on the SM-G950U1 XAA unlocked firmware so it shouldn't be locked?? Any suggestions would be greatly appreciated.
eyecee said:
Hi All - hoping to get your help and advice.
Original S8 was a USA SM-G950U on T-Mobile that was successfully flashed and unlocked to SM-G950U1 (CSC = XAA). The phone was fully functional, successfully received OTA updates and was on the latest firmware (G950U1UES5CRL2) in use in Hong Kong (3HK 4G LTE) until yesterday when I did a hard-reboot and cache-wipe a few days after a system update and now the cellular radio won't connect to any network. I've tested the SIM card (works fine on other phones), rebooted without the SIM inside (no impact), tried upgrading to Android 9.0 as well as older Bootloader v5 firmware to see if the cellular radio would turn on and re-connect but no luck.
Current State: When looking under "Mobile networks", Network mode shows "Preferred network mode: CDMA/EVDO/GSM/WCDMA" whereas it used to be "LTE/3G/2G". This option is available under the drop down list but I can't selected it. Under "Network Operators", tapping "Search networks" results in an error "Error while searching for networks". Tapping "Select automatically" pops an error "Unable to connect. Try later".
After exhaustive testing, it feels like the phone is behaving like it's SIM-locked since everything else works thru wifi but it's on the SM-G950U1 XAA unlocked firmware so it shouldn't be locked?? Any suggestions would be greatly appreciated.
Click to expand...
Click to collapse
Just because you flash unlocked firmware does not remove the T-Mobile SIM lock
TheMadScientist said:
Just because you flash unlocked firmware does not remove the T-Mobile SIM lock
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Click to collapse
Thanks for your feedback! What's strange was that my S8 with the unlocked firmware (SM-G950U1) was working perfectly for 6 months and I was able to make calls, get LTE data connectivity, etc. Now the phone is still working via wifi but the cellular function is dead. Any suggestions or advice on how to remove the T-Mobile SIM lock?
eyecee said:
Thanks for your feedback! What's strange was that my S8 with the unlocked firmware (SM-G950U1) was working perfectly for 6 months and I was able to make calls, get LTE data connectivity, etc. Now the phone is still working via wifi but the cellular function is dead. Any suggestions or advice on how to remove the T-Mobile SIM lock?
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Click to collapse
We need to verify some how if it truly is Sim locked or not first.
TheMadScientist said:
We need to verify some how if it truly is Sim locked or not first.
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Click to collapse
I've tried 2 different SIM cards (though both from the same carrier) and both were not connecting to the mobile network. The phone can detect when there isn't a SIM card inserted so that is a minor indicator that the SIM card slot is functional.... any other suggestions on how to verify whether my S8 is SIM locked?
EDIT: Both SIM cards work in other phones (iPhone6s, iPhoneX).
eyecee said:
I've tried 2 different SIM cards (though both from the same carrier) and both were not connecting to the mobile network. The phone can detect when there isn't a SIM card inserted so that is a minor indicator that the SIM card slot is functional.... any other suggestions on how to verify whether my S8 is SIM locked?
EDIT: Both SIM cards work in other phones (iPhone6s, iPhoneX).
Click to expand...
Click to collapse
Of coarse not always but most of the time it will display a warning or something about sim not accepted. This sounds like to me. A couple things. Simlocked. Maybe install the T-Mobile firmware again and try the T-Mobile unlock app. It should say this device is already unlocked or successful. If that passes. It could be a disabled band or something. Sounds like the latter. Like it's not picking up your carriers signal. Again the us models I believe are pretty universal so maybe a different firmware may enable it again. Or last the device has somehow become blacklisted which unfortunately I have seen plenty of people here in US sell devices still on contract maybe pay a few months and quit then blacklists
eyecee said:
Hi All - hoping to get your help and advice.
Original S8 was a USA SM-G950U on T-Mobile that was successfully flashed and unlocked to SM-G950U1 (CSC = XAA). The phone was fully functional, successfully received OTA updates and was on the latest firmware (G950U1UES5CRL2) in use in Hong Kong (3HK 4G LTE) until yesterday when I did a hard-reboot and cache-wipe a few days after a system update and now the cellular radio won't connect to any network. I've tested the SIM card (works fine on other phones), rebooted without the SIM inside (no impact), tried upgrading to Android 9.0 as well as older Bootloader v5 firmware to see if the cellular radio would turn on and re-connect but no luck.
Current State: When looking under "Mobile networks", Network mode shows "Preferred network mode: CDMA/EVDO/GSM/WCDMA" whereas it used to be "LTE/3G/2G". This option is available under the drop down list but I can't selected it. Under "Network Operators", tapping "Search networks" results in an error "Error while searching for networks". Tapping "Select automatically" pops an error "Unable to connect. Try later".
After exhaustive testing, it feels like the phone is behaving like it's SIM-locked since everything else works thru wifi but it's on the SM-G950U1 XAA unlocked firmware so it shouldn't be locked?? Any suggestions would be greatly appreciated.
Click to expand...
Click to collapse
Have the same problem, have SM-G950U TMB Bad ESN , get Unlock/Unfreeze codes from support T-Mobile, easy unlock FRP, unlock phone througt codes, can't unlock network througt T-Mobile app, use samtool - unlock network shows TMB/XAA/TMB, after restart phone are can't see network, can't find network, with signal all ok and in other phones all ok with sim. Try to change SCS to XAA -> can't find network, try flash SM-G950U1 latest frim -> Not working, Try Flash SM-G950U TMB Latest - Model/Network status wrong... odin error... , Now can't flash any SM-G950, only SM-G950U1XXXXXX , try 950U1 TMB not work, and trying many SPR,XAS,XAA,VZN ... in all frimwares network don't work. now don't know what to do, possible i will try to flash SM-G950F
Nirexes said:
Have the same problem, have SM-G950U TMB Bad ESN , get Unlock/Unfreeze codes from support T-Mobile, easy unlock FRP, unlock phone througt codes, can't unlock network througt T-Mobile app, use samtool - unlock network shows TMB/XAA/TMB, after restart phone are can't see network, can't find network, with signal all ok and in other phones all ok with sim. Try to change SCS to XAA -> can't find network, try flash SM-G950U1 latest frim -> Not working, Try Flash SM-G950U TMB Latest - Model/Network status wrong... odin error... , Now can't flash any SM-G950, only SM-G950U1XXXXXX , try 950U1 TMB not work, and trying many SPR,XAS,XAA,VZN ... in all frimwares network don't work. now don't know what to do, possible i will try to flash SM-G950F
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Click to collapse
You can't fish 950f different chipsets. What country are you trying to use it in. If it's blacklisted that's more than likely your answer right there.
TheMadScientist said:
You can't fish 950f different chipsets. What country are you trying to use it in. If it's blacklisted that's more than likely your answer right there.
Click to expand...
Click to collapse
Yeah can't flash 950F, Russia - No T-Mobile here. Don't know what to try right now, possible try get stock TMB, then unlock network again if its lock. No blacklists, T-Mobile support says status Clear, but maybee contract on T-Mobile not paid. Trying to flash custom modem, but didn't help too.
Stats here:
ADBSN: 98892A415243565036
MODEL NAME: SM-G950U1
DID: 205E7D06ED39
BOOTLOADER: G950U1UES7DSK4
PDA VERSION: G950U1UES7DSK4
MODEM VERSION: G950U1UES7DSK4
CSC VERSION: G950U1UES7DSK4
MODEM BOARD: MSM8998
ANDROID VERSION: 9
CARRIER: XAA
SALE COUNTRY: USA
CPU: QCOM
SIM STATE: LOADED
SIM CONFIG: SS
USB CONFIG: MTP,ADB
Warranty Bit: 0
USB Modem Connection Detected!
Model Name: SM-G950U1
IMEI: 355987081639857
SN: R28J41FBDBJ
UID: 98892A415243565036
SWVER: G950U1UES7DSK4/G950U1UES7DSK4/G950U1UES7DSK4/G950U1UES7DSK4/G950U1OYM7DSK4

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