I decided to root my Galaxy S7 Sprint running Nougat (SM-G930P) The process went well, successful root and all. I fixed mobile data too, but SMS and phone calls aren't working. I looked at all the guides, telling me to put *#*#4636#*#* in the dialer, and change the SMSC, but it won't bring up the 'menu' So I am kind of stuck, any alternate solutions?
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Hello everyone, and my apologies if this is in the wrong section, I wasn't sure where to post this.
I have a Samsung Galaxy Showcase (SCH-I500) running 2.3.7 and I recently installed Cyanogenmod 7 on it. Since I installed Cyanogen I have been unable to send or receive txt's. After doing some research I have concluded that it is a problem with my SMSC number. I have tried several numbers and used the PDU encoder found online all to no avail.
I have also noticed that after "updating" the SMSC number through the *#*#4636#*#* menu that after reboot if I click "refresh" nothing shows up in the box (not 00, just blank).
I have tried clean installed, and resets, but nothing is working. I have tried calling straight talk, and their technical support didn't even know what a SMSC number was same with the walmart store associate. Is there anyone here that can help me out?
PS: This is a Straight Talk phone and I believe I am on the Verizon network.
Before I start with the issue, let me begin with some basic information: This is in regards to my Samsung Galaxy S5 SM-G900T (T-mobile), running Lollipop 5.1.1, FOG6 build, DOB1 baseband, rooted, deodexed, but otherwise stock.
My problem: Today I flashed a rom via Mobile Odin Pro and soft-bricked my device. After a lot of hair pulling and screaming at my phone and computer, I finally got my phone up and running again. After trying many different solutions, I eventually tried re-flashing TWRP through Odin (recovery initially would not boot, hence the soft-brick), which succeeded, and then recovered my phone by restoring from a previous backup.
This got my phone up and running again, but once it boot, I had no service. I first checked my APN settings, but was presented with a message stating, "Unable to view the access point name settings. Access is restricted for the current user profile." I tried adding a new APN, but once I added it, it did not appear in the APN list, which continued to only display the above message. I then tried to "Search now" for Network Operators, but nothing was found. So next I checked my IMEI through "About Device", and discovered it was set to "Unknown". Checking the IMEI through the dialer (*#06#) lists the IMEI as "null / null".
I have searched high and low and tried everything I could find to fix this. I tried restoring my TWRP EFS backup to no effect. I also tried flashing the modem through Odin, as well as restoring my TWRP modem backup. I tried using an Xposed app to manually set the IMEI back to its original value (I happen to have my phone's original IMEI number written down from when I SIM unlocked my device), but while this updated the IMEI displayed in the dialer (through *#06#), it did not change the value in "About Device" and did not restore my service.
The last solution I tried (found here: http://www.technobezz.com/restore-galaxy-null-imei-and-fix-not-registered-on-network/) involves me using the dialer to enter Service Mode to make some changes; however, while dialing *#197328640# did open the Service Mode menu, the menu was totally blank.
Please help! Given the current state of my phone, I cannot make or receive calls or texts or do anything else requiring a mobile connection. I have looked everywhere and I don't know what else to try :crying: :crying:
Assistance in this matter would be greatly appreciated, as until I am able to fix this, I don't have a functional phone
Any suggestions?
Trying to launch service mode to change some LTE carrier aggregation settings (Exynos on T-Mobile, need to change some stuff to make it better).
Obviously you can't without root, so I use the Phone Info app which has a root enabled service menu launcher, however when I launch any menu that needs root, I get this error: https://imgur.com/a/lwMeTxr
I've tried a lot different apps and even terminal methods to launch this menu, all of them give the same error. I've confirmed this works fine in Oreo on my old S8 and S7 but it's doing this on my S9+.
I'm running Soldiers ROM BRJ3 with the T-Mobile detonator CSC v4.1, everything else stock. G965FD.
Hey guys new problem
After flashing the stock Kitkat ROM I realised that the OTA updater doesn't work, so I googled around some more and found the latest (I think) Lollipop ROM (A7-30HC_S127_151125_ROW) and flashed that with the SP flash tool. Everything works fine except for 1 major issue.
The SIM doesn't work and I can't make or receive calls and messages. The SIM is fine, I tested it on another device and I can make and receive calls without any issues. But on the tab it detects the SIM, data works, but calls and messages do not. On the status bar it shows 3G and the little reception bars. When I check the SIM status in settings it shows the network, but the Signal strength is 0, Service state is Out of service but the Cellular network state is Connected.
Is this a problem with the ROM? Do Lollipop ROMs for this tab have any issues like this? Should I downgrade back to Kitkat or try an older Lollipop ROM (like this one A7-30HC_S126_150824_ROW)
Help would be much appreciated
Edit: I just realised that it's saying Invalid IMEI on the lock screen, and when I type *#06# on the dialer it says Invalid
Have I lost the IMEI now?? Is this going to be a permanent problem?
Okay guys I fixed it with the help of a little googling again! XD
Followed the instructions given by the first result when I searched for invalid IMEI
Thankfully the tab had a sticker with the IMEI pasted on the back, so it was easy enough to type the commands with it.
Restarted and now everything is back to normal
Hi all,
Alright so this is going to be a long post. So I recently flashed my phone to the U1 firmware, I currently have an unrooted Verizon Unlocked Samsung S9+. I wanted to switch phone carriers over to Visible (subsidiary of Verizon), here are the order of events that occurred:
1. Visible's website says that my device in not compatible using their IMEI checker, there is a solution that was found on reddit about flashing the device on the U1 firmware.
2. I flashed the device on the U1 firmware using Odin and the Visible SIM card worked as expected. No issues with the flash
3. Data/Texts etc.. are all working as expected. Except for Voicemail.
When I try to check my Voicemail, it is acting as if it's still on the Verizon Voicemail system. It says "Welcome to the message management system, please enter your mailbox number". No one can leave me a VM either because of this. I tried several different combinations of numbers, including my full 10 digit cell number and last 4, to which it says "XXX is not a valid mailbox number", which would be because my number is no longer active on Verizon, so it's unable to access it. Which makes sense. The Visible Customer Care team tried the following:
1. Provisioning my VM multiple times
2. Take out SIM card, turn phone off for 1 min, insert SIM card again, and toggle airplane mode for 30 seconds
3. Reset network settings
After numerous days of troubleshooting with them, eventually they said it was because my device isn't compatible, ok, I can't argue with that. I have not seen anyone else experiencing this issue that had flashed their phone to U1 firmware.
After trying all of this with them, I eventually factory reset my device, hoping that might do something. That still did not work.
My questions is, is there something I missed with flashing the U1 firmware? Why is it still using Verizon's VM system even though I flashed it to U1? Is there any way to fix this? Any help is greatly appreciated, and please don't hesitate if you need any other information.
bornxawkward said:
Hi all,
Alright so this is going to be a long post. So I recently flashed my phone to the U1 firmware, I currently have an unrooted Verizon Unlocked Samsung S9+. I wanted to switch phone carriers over to Visible (subsidiary of Verizon), here are the order of events that occurred:
1. Visible's website says that my device in not compatible using their IMEI checker, there is a solution that was found on reddit about flashing the device on the U1 firmware.
2. I flashed the device on the U1 firmware using Odin and the Visible SIM card worked as expected. No issues with the flash
3. Data/Texts etc.. are all working as expected. Except for Voicemail.
When I try to check my Voicemail, it is acting as if it's still on the Verizon Voicemail system. It says "Welcome to the message management system, please enter your mailbox number". No one can leave me a VM either because of this. I tried several different combinations of numbers, including my full 10 digit cell number and last 4, to which it says "XXX is not a valid mailbox number", which would be because my number is no longer active on Verizon, so it's unable to access it. Which makes sense. The Visible Customer Care team tried the following:
1. Provisioning my VM multiple times
2. Take out SIM card, turn phone off for 1 min, insert SIM card again, and toggle airplane mode for 30 seconds
3. Reset network settings
After numerous days of troubleshooting with them, eventually they said it was because my device isn't compatible, ok, I can't argue with that. I have not seen anyone else experiencing this issue that had flashed their phone to U1 firmware.
After trying all of this with them, I eventually factory reset my device, hoping that might do something. That still did not work.
My questions is, is there something I missed with flashing the U1 firmware? Why is it still using Verizon's VM system even though I flashed it to U1? Is there any way to fix this? Any help is greatly appreciated, and please don't hesitate if you need any other information.
Click to expand...
Click to collapse
Please check your voice mail settings in your phone app. See my screenshots.
There you should select the correct service provider and the Visible mailbox number.