Develop Bugs

Phone Stuck Showing "Searching / No Service"

Hello all. I purchased a edge+ today but whenever I insert a sim, the phone stays on searching. I made sure that I rebooted the device and I also tried re-seating the sim many times. I believe the device is unlocked and the imei/esn is in clean standing with T-Mobile. I tried a MetroPCS sim card and it stayed on searching, same thing happened with a Verizon sim. However when I inserted the T-Mobile sim, it sometimes says no service but ever since I rebooted the device, it stays on "searching" no matter which sim is installed. I find this whole ordeal frustrating since the signal bars show up for the MetroPCS and T-Mobile sim but with Verizon nothing happens. Any help would be greatly appreciated.

Yours is G928T? If yes, it does not support Verizon/Sprint even if it's unlocked.
Did you buy it off of Craigslist/Ebay? It might be blacklisted. checkesnfree.com

knite75 said:
Yours is G928T? If yes, it does not support Verizon/Sprint even if it's unlocked.
Did you buy it off of Craigslist/Ebay? It might be blacklisted. checkesnfree.com
Click to expand...
Click to collapse
Yes, it's the G928T but it's not blacklisted I checked. The simcards I was using on the phone were old ones(no longer in service) I thought they would work. I used a scissor to cut my WORKING sim and placed it in the phone and it took the MetroPCS sim. Everything works fine now except calls and text only work with WiFi Calling on. If I turn off WiFi, I can't text or make calls(not on registered network) but if I turn the WiFi back on, it works fine. Any suggestions?

MetroPCS and T-Mobile are on the same network.
Check/add MetroPCS APN.
Setting -> Mobile Networks -> Access Point Names
Add MetroPCS APN if it's not there.
gazasalim said:
Yes, it's the G928T but it's not blacklisted I checked. The simcards I was using on the phone were old ones(no longer in service) I thought they would work. I used a scissor to cut my WORKING sim and placed it in the phone and it took the MetroPCS sim. Everything works fine now except calls and text only work with WiFi Calling on. If I turn off WiFi, I can't text or make calls(not on registered network) but if I turn the WiFi back on, it works fine. Any suggestions?
Click to expand...
Click to collapse

knite75 said:
MetroPCS and T-Mobile are on the same network.
Check/add MetroPCS APN.
Setting -> Mobile Networks -> Access Point Names
Add MetroPCS APN if it's not there.
Click to expand...
Click to collapse
Yeah I know they are which baffles me as to why it isn't working. I tried adding a custom APN but same thing happens. I get calls/sms on WiFi but if I turn it off I get "No Service"

Just go to metro and get a new Sim. You could have damaged it by cutting it. It should be free. ATT gives me then free all the time. Usually, the phone will just auto update the apn settings when a specific carriers Sim is inserted
Sent from my SM-G928T using Tapatalk

erick161 said:
Just go to metro and get a new Sim. You could have damaged it by cutting it. It should be free. ATT gives me then free all the time. Usually, the phone will just auto update the apn settings when a specific carriers Sim is inserted
Sent from my SM-G928T using Tapatalk
Click to expand...
Click to collapse
I went and it turns out the device is blacklisted. This whole time I was rolling with the imei in the phone, after checking last night, I noticed that the imei on the back of the device differs from the one that's actually on the software. I was able to get in touch with the seller and he's coming back to give me my money back. Guess a mod can mark this thread closed.

SIM Card Issue

What happened with my HTC 10 and my SIM card this weekend? I was able to fix it so I'll explain problem and solution. I'm just looking for an understanding from someone smarter than me.
TL : DR ==> Why do two different devices with the same service have locked SIM settings that changed between devices and causing one of the devices (HTC 10) to not have working data?
My HTC 10 is on Viper10 (Nougat Sense based). My wife's phone is a OnePlus3 (FreedomOS (stock based rooted rom on Nougat)).
Both devices are on T-Mobile same plan. We both have T-Mobile so when travelling international we enjoy using the service. Well this is our first trip with both of these devices. We land in Canada and check the box allow data roaming on both phones. The OP3 lights up immediately and has LTE data. The HTC 10 shows no data. I have a signal for voice and whatnot but no data. Going into phone settings it says "disconnected because service is unavailable" under the mobile data toggle. If I go under about phone at the bottom of settings it says LTE but it just refuses to connect the phone.
I don't have much time to mess with this on a vacation but I'm seriously not happy right now. I work though it by trying to swap the SIM cards thinking maybe that's the issue. Nope. OnePlus3 lights up data on my HTC's SIM card but the OP3's SIM card causes same error on HTC 10. I have MultiROM so I booted up a new ROM just for testing to see if maybe it was the ROM causing a problem. I switched to an AOSP based ROM and same problem. No data but I have a signal for basic phone usage.
Now I'm starting to get pissed. I went into the APN section of both phones. They both have a lock icon next to the one supplied by T-Mobile but the APNs are slightly different in their configuration. HTC 10's shows APN roaming protocol as IPV4 whereas the OP3 shows APN roaming protocol as IPV6. I manually created a new APN on the HTC 10 with the exact same settings on the OP3 and BOOM instantly got data working. :laugh:
So to recap from above, why do two different devices with the same service have locked SIM settings that changed between devices and causing one of the devices to not have working data? It wasted a good hour of my trip trying to fix it. If that APN switch didn't fix it I was about to give up and just use the wife's phone for the trip.

Some things you could try...
Deleting apn settings, then hit reset to default. Then reboot phone. Also if you're using T-mobile SIMs they are tied to the device by IMEI. In TLDR seemed like you were trying to swap SIMs.
concerning the data being weird after SIM swap (if they're both unlocked) maybe they have different bands or one has stronger radio.

drago10029 said:
Some things you could try...
Deleting apn settings, then hit reset to default. Then reboot phone. Also if you're using T-mobile SIMs they are tied to the device by IMEI. In TLDR seemed like you were trying to swap SIMs.
concerning the data being weird after SIM swap (if they're both unlocked) maybe they have different bands or one has stronger radio.
Click to expand...
Click to collapse
Thanks for the advice! I had swapped the sim card from my unlocked HTC M9 to a new unlocked HTC M10 and everything was great for a week until one morning it wasn't. I was familiar with creating new APN s when travelling. Followed your advice to a T. Worked first time. I'm currently on the Bell network in Ontario.

Jodstrac said:
Thanks for the advice! I had swapped the sim card from my unlocked HTC M9 to a new unlocked HTC M10 and everything was great for a week until one morning it wasn't. I was familiar with creating new APN s when travelling. Followed your advice to a T. Worked first time. I'm currently on the Bell network in Ontario.
Click to expand...
Click to collapse
Another thing you can try is boot into the BOOTLOADER, not download mode, and do 'fastboot erase persist'

bynarie said:
Another thing you can try is boot into the BOOTLOADER, not download mode, and do 'fastboot erase persist'
Click to expand...
Click to collapse
Also note that the command is for S-OFF only devices. And that command only helps when you downgraded the firmware from oreo to nougat or lower. For S-ON devices it works completely different. It has no relation to APN settings.

Getting totalwireless to work on the pixel 2 xl?

For whatever reason I can't get my totalwireless sim to connect to data in my pixel 2 xl. The sim works fine in my pixel. I can put a xfinity mobile sim in the pixel 2 and it will connect to data just fine. I can't even edit the apn settings when the totalwireless sim is in the phone. It just tells me I'm not authorized. Anyone got any ideas on how I get my pixel 2 to connect to LTE on totalwireless?

munkle said:
For whatever reason I can't get my totalwireless sim to connect to data in my pixel 2 xl. The sim works fine in my pixel. I can put a xfinity mobile sim in the pixel 2 and it will connect to data just fine. I can't even edit the apn settings when the totalwireless sim is in the phone. It just tells me I'm not authorized. Anyone got any ideas on how I get my pixel 2 to connect to LTE on totalwireless?
Click to expand...
Click to collapse
Get a new sim from them. Sprint is the same way
Sent from my Pixel 2 XL using Tapatalk

Got a new sim, activated it with the pixel 2 xl imei. Still no data, cannot edit the apn settings. The new sim also works fine in my pixel 1. Google just tells me to factory reset or reset network settings. That doesn't help. Totalwireless wants me to manually add the apn, which I would have done from the begining but the apn settings are locked and I cannot change them. Just going to return the phone as its not really useful without data.

A fix!
munkle,
Me and another reddit user have been battling with the same issue. I've gone through 3 Total Wirless SIMs and haven't fixed the issue. It has to do with not being able to add or edit an APN on the phone. Another user figured out a workaround though. I'll copy his reply here. I haven't tried this yet but I'm going to try it this weekend. Here is the quote
"Holy ****, I think I've cracked it.
This is the most convoluted set of steps I think I've ever had to do on something that should be easy... however this answer is kind of a pain.
I managed to get my hands on a H20 wireless sim crd which uses the att network. As I said before it lets me add an APN but not save it. So what I did is leave the screen open where I entered the APN info. swap out the sim cards in the middle of it and hit save whenever the phone got service and bam! LTE!
I can't believe this is what I had to go through... And I can't even promise it will work every time. I tried the process again on my RMA phone, but all that phone would pick up is 3G... go figure... So I think your best bet would be to swap in a buddy's sim card who uses att or tmobile, just to get to that 'add an APN' screen and then swap your sim card back in."

I can confirm that the above works. I now have LTE data. That is messed up that you need to do that.
Edit: actually it only half works. I still can't send mms messages. Probably because the apn screen wouldn't let me exactly match the settings on my pixel 1, it says the carrier didn't support certain things.

See this topic: https://productforums.google.com/fo...!msg/phone-by-google/_PGJbTEuY0M/BY724wAkBwAJ

It's the future of android, unfortunately, in that it's an android 8.1 issue (at least Android 8.0 on 1st gen Pixel XL doesn't have this issue, but Android 8.1 on 1st gen Pixel XL does have this issue).
There is a new setting in the apns-conf.xml file (found in /system/system/etc or /system/etc), which setting is labeled "user_hidden" with options "true" and "false". All of the Verizon MVNO settings are labelled as "true", meaning that APN editing access is now restricted.
There is no way that I know of to edit this file without bootloader unlock and root.
And, it's definitely an Android issue, as Android 8.0 (other than on the Pixel 2 XL) and earlier did not have this issue.
Speculation on my part, but this is probably Google's response to its exclusive carrier, Verizon, request that these phones not be made easy to use on much-cheaper-than-Verizon MVNOs.

Unlocked S9 cannot register on Verizon MVNO?

I've got my unlocked S9 from Samsung. I have a Redpocket CDMA sim card, which works fine in a Samsung S7E and a Google Pixel. However, when putting this sim card in S9, the S9 could not get on its network. It shows Emergency calls only and "Not registered on network" when making a call.
Sometimes it shows "refreshing sim card data" and no network. When turning to network modes, it says "LTE/3G/2G" etc but redpocket cs seems to believe the right one should be "LTE/CDMA" instead, which is not in the list.
I tried various usual ways such as factory reset etc, which did not change anything.
I tried a project Fi and a verizon sim card in the S9 and they were recognized with no problem. Thus I think the S9 is not defective.
I did some searches and people mentioned S8 had the same issue too: https://forum.xda-developers.com/galaxy-s8/help/unlocked-s8-failed-to-register-red-t3736850
I am wondering whether anyone has this problem or a solution.
Will flashing to verizon firmware help?
Thanks.

I'm having the same issue with PagePlus! I just put the SIM from my VZW S6 into my unlocked S9 and when that didn't work I chatted with support to do an ESN change (I thought perhaps PP needed to do something on their end). I was told if there was no "LTE/CDMA" option that the phone wouldn't work on PP.
I tried using an app to switch between different network modes (including the LTE/CDMA/UMTS auto which my S6 uses) to no avail.
I'm tempted to try flashing the VZW firmware, but the post here makes me wonder if it will accomplish anything.

I tried that APP to force network mode too but it did not seem to work.
As an update, Redpocket customer service is really great that they moved my number from Verizon network to their GSM/ATT network, and everything works fine now. I do not want to try flashing verizon firmware for the same reason...
Too bad Samsung could not get such a simple thing right.
janame said:
I'm having the same issue with PagePlus! I just put the SIM from my VZW S6 into my unlocked S9 and when that didn't work I chatted with support to do an ESN change (I thought perhaps PP needed to do something on their end). I was told if there was no "LTE/CDMA" option that the phone wouldn't work on PP.
I tried using an app to switch between different network modes (including the LTE/CDMA/UMTS auto which my S6 uses) to no avail.
I'm tempted to try flashing the VZW firmware, but the post here makes me wonder if it will accomplish anything.
Click to expand...
Click to collapse

Can we sue them?
I faced the same issue too. Apparently, Samsung does a setting update that prevents the sim from registering for Verizon's MVNOs. I called them and they said they NEVER heard of this issue. Apparently, you all did too. I am tempted to sue Samsung for this since this could be an antitrust issue. They are preventing competition by working with Verizon and feigning ignorance.Can any of you comment on this?

I was going to go with one of Verizon's mvnos. And their SIM card would not work and I did not realize it until I spend the $40. I had to put an actual Verizon sim in my unlocked phone to use the Verizon network. So either Verizon is blocking the S9 on mvns or the mvnos don't have the updated information for the S9. Total wireless told.me it Had to be a Verizon branded phone for it to work. So I think if someone flashed the Verizon firmware on the unlocked version it probably would work.

i dont see anywhere on the post where you contacted the MVNO provider, to register the ESN or IMEI of the device.
Also does this MVNO even allow BYOD?
i remember I had a line from Cricket or Metro that had a sim card, it worked on my Nexus 5x, however inserting it to another nexus 5x, it didnt work, I had to call them to register my IMEI

Hey guys this is an old thread, but maybe this will help someone. My old Red Pocket SIM would not work on the S9, but my renewal came with a new SIM, ending in 8222-15XX (old was 8180-50XX) For ****s and giggles I put it in and it showed LTE/CDMA and verizon. Had RP CS switch my active SIM and now it works with no workaround!
TL;DR Try a new RP SIM if you are using one a year old or older.

I also have similar issue.
Where I used to get lte over voice, but no longer getting after a recent update from samsung. Using Redpocket cdma sim
Now I have lte and voice, but dont get lte over voice even though redpocket said they have enabled Volte on my line

We just added an Unlocked Galaxy S9 (replaced S5) purchased from Amazon (Black Friday sale), ordered new Sim from Pageplus (MVNO using Verizon ), called them to transfer the phone number, popped it in and the S9 configured itself for Pageplus, and everything works perfectly...

ToyTank said:
Hey guys this is an old thread, but maybe this will help someone. My old Red Pocket SIM would not work on the S9, but my renewal came with a new SIM, ending in 8222-15XX (old was 8180-50XX) For ****s and giggles I put it in and it showed LTE/CDMA and verizon. Had RP CS switch my active SIM and now it works with no workaround!
TL;DR Try a new RP SIM if you are using one a year old or older.
Click to expand...
Click to collapse
That's great news. I switched to GSMA due to CDMA issue. I will switch back to CDMA after my current plan expires.
I heard that RCS (messaging via wifi connection similar to imessage - samsung messages app supports it in pie I believe, not sure about oreo) is active in verizon now including mvnos. Have you tried it?

sam298 said:
That's great news. I switched to GSMA due to CDMA issue. I will switch back to CDMA after my current plan expires.
I heard that RCS (messaging via wifi connection similar to imessage - samsung messages app supports it in pie I believe, not sure about oreo) is active in verizon now including mvnos. Have you tried it?
Click to expand...
Click to collapse
I tried for my unlocked note 8. For the new sim coming from red pocket, it works great at the first time. But later when I switch the sim to a GSM sim for international travel and then switch the sim back to the red pocket sim, the same problem appeared. I have to use verizon sim to get LTE/CDMA back in the emergency mode.

queenriver said:
I tried for my unlocked note 8. For the new sim coming from red pocket, it works great at the first time. But later when I switch the sim to a GSM sim for international travel and then switch the sim back to the red pocket sim, the same problem appeared. I have to use verizon sim to get LTE/CDMA back in the emergency mode.
Click to expand...
Click to collapse
Traded in my S9 with an S10+ and the redpocket CDMA sim works now!

ToyTank said:
.My old Red Pocket SIM would not work on the S9, but my renewal came with a new SIM, ending in 8222-15XX (old was 8180-50XX) For ****s and giggles I put it in and it showed LTE/CDMA and verizon. Had RP CS switch my active SIM and now it works with no workaround!
Click to expand...
Click to collapse
I think you've found the answer for those who are unable to get their existing RP SIM to work on the S6-7-8-9's running OREO or PIE. I just took a later serial numbered CDMAV SIM (89140000018821472XX), inserted it into another S8+ that I have, booted it and saw the Verizon Wireless scroll across the top. I'll chat with RP today and see if they will switch the ICCID numbers between old and new.
After countless hours looking into this problem, I tip my hat to you for the solution provided.

Try as I may, in the end it didn't work for me.

It worked for me when I flashed the latest un-branded U1 firmware G960U1 UEU6CSI1 via the patched Odin, from:
https://updato.com/firmware-archive-select-model/?record=E68EDDB6DBFB11E99E59FA163EE8F90B
I've also done a full factory reset from recovery after the flash.
I guess they must have fixed it with the latest firmware updates... ymmv

Since the August update, both of my Verizon branded S8+'s work directly upon inserting a RP sim card.

POSSIBLE SOLUTION!! (YMMV)
I had a similar problem when I upgraded to Android 10. I no longer had CDMA as a choice for Network mode. Here is the solution that worked for me:
Step #1:
Go to the phone dialer and dial *#*#4636#*#*
This will bring up a new screen
Select "Phone Information"
You will be greeted with a scary-looking screen with lots of stuff
Scroll down and look for "Set Preferred Network Type"
Select "LTE/CDMA auto (PRL)" from the drop-down
This will give you phone service... but not data.
STEP #2
To get data services, you will need to create an APN.
Go to settings/connections/mobile networks/Access Point Names
Click on add and enter the following:
APN Name: Verizon
APN: VZWINTERNET
MCC: 311
MNC: 480
Authentication Type: None
APN Protocol: IPv4/IPv6
APN Roaming Protocol: IPv4/IPv6
I found that this APN worked for me... (YMMV)
Hope this is helpful...

are you folks still having trouble with this? it doesnt seem like a difficult obstacle to overcome

Thank you sooo much! Creating the APN did the trick.

XZ2 Compact APNs Locked?

I've been using my XZ2 Compact on Verizon since it was released. No issues. Switched to Total Wireless today, and my internet will not work. Voice and text works fine. Total Wireless operates on Verizon's network. This SIM card works fine when I put it into a Google Pixel.
My APN settings are locked (there is no "+" button). Automatically updating the APN settings adds a Verizon profile that is totally different than the one that automatically popped up on my Pixel. I can delete the existing APN profile, but I cannot add one. I've restarted the phone many times, both while connected to WiFi and not. I get internet back immediately if I reboot with the Verizon SIM.
I've searched around the interwebs, and I cannot find anything. Any help would be appreciated.

jmdale1984 said:
I've been using my XZ2 Compact on Verizon since it was released. No issues. Switched to Total Wireless today, and my internet will not work. Voice and text works fine. Total Wireless operates on Verizon's network. This SIM card works fine when I put it into a Google Pixel.
My APN settings are locked (there is no "+" button). Automatically updating the APN settings adds a Verizon profile that is totally different than the one that automatically popped up on my Pixel. I can delete the existing APN profile, but I cannot add one. I've restarted the phone many times, both while connected to WiFi and not. I get internet back immediately if I reboot with the Verizon SIM.
I've searched around the interwebs, and I cannot find anything. Any help would be appreciated.
Click to expand...
Click to collapse
I use another mvno and the part that's most important is 'apn name' when using an mvno mine has to be set to say reseller... Have you tried pressing download internet settings? That usually fixes the problem and bring back the plus or allow you to manually change the apn setting after it downloads it. Take it you aren't using the dual sim as sometimes switching the Sims around brings back the apn menu.

Thanks for the insight. I have tried downloading settings several times, it just bring back the "VZWINTERNET" APN.
It is a single SIM US model.
I have not tried renaming the APN. That is the one thing I can edit on it.

jmdale1984 said:
Thanks for the insight. I have tried downloading settings several times, it just bring back the "VZWINTERNET" APN.
It is a single SIM US model.
I have not tried renaming the APN. That is the one thing I can edit on it.
Click to expand...
Click to collapse
Does total wireless publish the apn settings? Sometimes ios/android uses slightly different settings. Just look at what apn name should be, and try to match it up..

ehBrY said:
I use another mvno and the part that's most important is 'apn name' when using an mvno mine has to be set to say reseller... Have you tried pressing download internet settings? That usually fixes the problem and bring back the plus or allow you to manually change the apn setting after it downloads it. Take it you aren't using the dual sim as sometimes switching the Sims around brings back the apn menu.
Click to expand...
Click to collapse
I'll try that as soon as I get home, thanks!

I can't believe it! Changing APN Name to "TRACFONE.VZWENTP" is all that was needed. Thanks a bunch!

jmdale1984 said:
I can't believe it! Changing APN Name to "TRACFONE.VZWENTP" is all that was needed. Thanks a bunch!
Click to expand...
Click to collapse
Glad you are up and running! Anytime.