Related
To start my phone was working fine using Sprint
I decided to see how T-Mobile Service was in my area by using a T-Mobile SIM, it was awful.
So I poped my Sprint SIM back in and I thought everything was working fine. Then I noticed that my LTE data works but I cannot make calls.
When I try to make a call it will switch to 3G with 3 bars and say Searching for Service.
I have tried several factory resets w/o any resolution.
My phone is not rooted
Nexus 5, running 4.4.4 Stock..
Suggestions please
jarod73 said:
To start my phone was working fine using Sprint
I decided to see how T-Mobile Service was in my area by using a T-Mobile SIM, it was awful.
So I poped my Sprint SIM back in and I thought everything was working fine. Then I noticed that my LTE data works but I cannot make calls.
When I try to make a call it will switch to 3G with 3 bars and say Searching for Service.
I have tried several factory resets w/o any resolution.
My phone is not rooted
Nexus 5, running 4.4.4 Stock..
Suggestions please
Click to expand...
Click to collapse
*#*#4636#*#* what is that set to? If you set to 1x only, can you make a call?
I have never used another Sim, my only advice is call Sprint and see if they can issue a reprovision on your line. If they can't help you, try to RMA the device. If you flashed a stock image and still have the problem... The problem can only really be in two places, the hardware or the service provider.
Also, I'm pretty sure you checked but make sure your Sprint APN is correct and active.
MrObvious said:
*#*#4636#*#* what is that set to? If you set to 1x only, can you make a call?
Click to expand...
Click to collapse
I'm not sure what you mean.. but this is what is set under phone:
LTE/GSM/CDMA auto (PRL)
CELLInfoList Rate 2147483647
TheLastSidekick said:
I have never used another Sim, my only advice is call Sprint and see if they can issue a reprovision on your line. If they can't help you, try to RMA the device. If you flashed a stock image and still have the problem... The problem can only really be in two places, the hardware or the service provider.
Also, I'm pretty sure you checked but make sure your Sprint APN is correct and active.
Click to expand...
Click to collapse
I'm not totally positive how to check/correct the Sprint APN
I tried chatting w/ sprint w/o resolution, i've not called them yet
jarod73 said:
I'm not totally positive how to check/correct the Sprint APN
I tried chatting w/ sprint w/o resolution, i've not called them yet
Click to expand...
Click to collapse
http://buzzmobile.us/sprint-apn-settings-android-us/
TheLastSidekick said:
http://buzzmobile.us/sprint-apn-settings-android-us/
Click to expand...
Click to collapse
I do not have access to that..Access Point Names is not an option when I get to the Mobile Network Settings Screen..
The other thing that bugs me about that is when I go to http://www.mcc-mnc.com/
I see this and do not know what's the most up to date even if I did have access:
MCC MNC ISO Country Country Code Network
310 2 us United States 1 Sprint Spectrum
310 120 us United States 1 Sprint Spectrum
311 490 us United States 1 Sprint Spectrum
311 880 us United States 1 Sprint Spectrum
311 870 us United States 1 Sprint Spectrum
312 190 us United States 1 Sprint Spectrum
316 010 us United States 1 Sprint Spectrum
Don't think it goes by date maybe an area code or zip format..? For example I have 310-Tmobile and I live on the east coast of the United States. Do you also have the Google Play edition N5 or the one from Sprint? Our experiences may vary because I have a Google Play Edition N5.
TheLastSidekick said:
Don't think it goes by date maybe an area code or zip format..? For example I have 310-Tmobile and I live on the east coast of the United States. Do you also have the Google Play edition N5 or the one from Sprint? Our experiences may vary because I have a Google Play Edition N5.
Click to expand...
Click to collapse
I have the Google Play Edition, 32G
Hmm, wonder if the Sim card holds the information and when Android detects Sprint APN, maybe it disables itself? So if you can't change the APN, it's probably not wrong. Definitely contact your service provider and have them took a look at resetting the connection to your phone.
TheLastSidekick said:
Hmm, wonder if the Sim card holds the information and when Android detects Sprint APN, maybe it disables itself? So if you can't change the APN, it's probably not wrong. Definitely contact your service provider and have them took a look at resetting the connection to your phone.
Click to expand...
Click to collapse
I just left the Sprint store, they had no idea what was wrong with it... I even had to show them how to get into the service menus
if you dont mind wiping the phone completely and flashing the stock images, give that a try. it worked for my friend when he did that.
jarod73 said:
To start my phone was working fine using Sprint
I decided to see how T-Mobile Service was in my area by using a T-Mobile SIM, it was awful.
So I poped my Sprint SIM back in and I thought everything was working fine. Then I noticed that my LTE data works but I cannot make calls.
When I try to make a call it will switch to 3G with 3 bars and say Searching for Service.
I have tried several factory resets w/o any resolution.
My phone is not rooted
Nexus 5, running 4.4.4 Stock..
Suggestions please
Click to expand...
Click to collapse
with the sprint sim card in,
switch to these settings in attachments,
re-choose sprint in APN (may take a while),
after successful apn update, update profile,
reboot TWICE..
done..
j'vai said:
with the sprint sim card in,
switch to these settings in attachments,
re-choose sprint in APN (may take a while),
after successful apn update, update profile,
reboot TWICE..
done..
Click to expand...
Click to collapse
That's my current settings
jarod73 said:
That's my current settings
Click to expand...
Click to collapse
did you try?
what happened?
j'vai said:
did you try?
what happened?
Click to expand...
Click to collapse
That's my current settings... so nothing happened
jarod73 said:
That's my current settings... so nothing happened
Click to expand...
Click to collapse
"..with the sprint sim card in,
switch to these settings in attachments,
re-choose sprint in APN (may take a while),
after successful apn update,
update profile,
reboot TWICE.."
....
doing those steps afterwards, now, you can get lte still, but make no phone calls..?
just making sure..
sometimes, when I switch to my truphone sim card which uses tmobile,
these are the steps I have to perform to grab sprint back properly, the rebooting twice, & apn select (which I rarely complete) does it..
rebooting twice with my sprint sim back in usually corrects it; sometimes it's set to global & searches for truphone even when the sprint sim is in, yet another reboot fixes it..
j'vai said:
"..with the sprint sim card in,
switch to these settings in attachments,
re-choose sprint in APN (may take a while),
after successful apn update,
update profile,
reboot TWICE.."
....
doing those steps afterwards, now, you can get lte still, but make no phone calls..?
just making sure..
sometimes, when I switch to my truphone sim card which uses tmobile,
these are the steps I have to perform to grab sprint back properly, the rebooting twice, & apn select (which I rarely complete) does it..
rebooting twice with my sprint sim back in usually corrects it; sometimes it's set to global & searches for truphone even when the sprint sim is in, yet another reboot fixes it..
Click to expand...
Click to collapse
yes, ive tried that.. no success
Change *#*#4636#*#* to LTE/CDMA Auto PRL and see if it works. Try CDMA auto as well and maybe CDMA only. Another option is *#*#72786#*#* which completely wipes your data programming. That may work.
Sent from my Nexus 5 using XDA Free mobile app
MrObvious said:
Change *#*#4636#*#* to LTE/CDMA Auto PRL and see if it works. Try CDMA auto as well and maybe CDMA only. Another option is *#*#72786#*#* which completely wipes your data programming. That may work.
Sent from my Nexus 5 using XDA Free mobile app
Click to expand...
Click to collapse
This, this, and this. This is essentially a reprovision. If this doesn't work, (and again, you said you flashed the factory image, right?) I would RMA this device since we haven't even hit a year yet.
Precautions to take before RMA, flash factory image, lock bootloader, reset tamperflags. Check General for more information.
Edit : Factory reset as in just wiping the user data will surely do nothing for this problem, you're going to need to default back to a clean stock ROM and see what happens then (to clarify, I wasn't sure if you had performed a factory reinstall or a data wipe)
Hi guys,
First off, yes, I am definitely in a LTE coverage area.
I was in Europe recently and use a few different carriers over there. Prior to my trip I was on LTE pretty much 24/7 rarely venturing beyond into 3G territory. When I got back and inserted my VZW SIM the phone wasn't connecting to the data network. I tried looking up how to activate and my friend told me to dial *228. I now see that doing that from an LTE phone is a bad idea. It activated my phone and I now have 3G data, but I cannot get LTE anywhere.
Is there a way to fix this or did I kill my SIM by dialing *228 and need to get a new one? How can I reactivate my SIM for LTE?
Edit: I spoke with Verizon techs who tried resetting my connecting from their end. I noticed that the PRN went from beginning with 53### to 15### which cursory checks tells me that it should be good for LTE. Still nothing by 3G.
I then went to a Verizon store, and they gave me a new SIM. The phone gave no appearance of activating and the data network would not connect at all. Texts / Voice calls worked though.
My next step was to restore the phone from a nandroid backup done prior to my trip when everything was working fine (including LTE). It restored, and I had data, but again, only 3G.
So next I performed a factory restore. The phone booted back to the initial 'welcome' screen. The first screen said 'activating your phone' and after a minute... 3G.
At this point I don't know what else to do. Should I try to return the phone to a fully stock state?
I'm running Digitalhigh GPE, and I know I'm a few versions behind, but I'm on the latest baseband.
Bump. Can anyone help? It's killing me being stuck on 3G. I've tried upgrading to GPE 5.1 and back to 5.0.1 with no changes.
Do you think I should try to return to stock? How do I even do that from where I am? I would need the stock ROM, kernel, radios, and recovery right?
drumz0rz said:
Bump. Can anyone help? It's killing me being stuck on 3G. I've tried upgrading to GPE 5.1 and back to 5.0.1 with no changes.
Do you think I should try to return to stock? How do I even do that from where I am? I would need the stock ROM, kernel, radios, and recovery right?
Click to expand...
Click to collapse
I would start by re flashing the full set of radios in Tigerstown thread...
In your Network Settings > Mobile Data > Preferred network, there's several different modes there ( LTE, global, 3g) I'm not 100% sure if you even have access to these settings in GPE?
Edit: Simplest way to return to a stock rom to test...
I'd say nandroid backup (just in case)
Wipe data and cache in recovery. I also do a "Factory Reset" just for the heck of it. Do NOT wipe internal memory or ext SD. Otherwise you will loose anything else on your phone such as pics, downloads, etc.
Then just download a stock rom, or really any Sense 6/7 Rom and flash it. There shouldn't be any more to it.
Before you do anything though, I would definitely reflash the full firmware set to knock that out of the way.
I picked up an unlocked T-mobile G5 and I'm using it for AT&T... The rep at the store applied the APN setting for ATT but I noticed after I got a new SIM installed and went home the reception and data connection started dropping in and out.
Basically, when the phone is sleeping and then I wake it starts searching for network then gets reception then get a signal for a couple mins then drops again and searches. Since it's a T-Mobile phone on an ATT network is there certain settings that I need to turn off like VoIP, WIFI calling etc? Any ideas?
Wipe out all existing APNs and start from scratch? Use the NXTGENPHONE APN. I'm using an unlocked T-Mobile H830 LG G5 on AT&T and I have no problems. My sister's Nexus 6 uses the same APN no problems either.
https://www.att.com/esupport/article.html#!/wireless/KM1062162
smartnphone said:
Wipe out all existing APNs and start from scratch? Use the NXTGENPHONE APN. I'm using an unlocked T-Mobile H830 LG G5 on AT&T and I have no problems. My sister's Nexus 6 uses the same APN no problems either.
https://www.att.com/esupport/article.html#!/wireless/KM1062162
Click to expand...
Click to collapse
So I followed your steps.. I wiped all existing APNs and entered the APN setting in the link you provided and used the NXTGENPHONE APN but I couldn't get data but just had reception to make calls. So I changed the name to AT&T and the APN name to phone and I get data and reception but it still drops in and out.
I went to ATT to see what they could suggest but the only thing they offered was maybe a faulty SIM card and switched it out but it's still doing the same thing... Has anyone experienced this? Should I do a factory reset maybe? If I do that, I won't lose SIM unlock right?
sguerra923 said:
So I followed your steps.. I wiped all existing APNs and entered the APN setting in the link you provided and used the NXTGENPHONE APN but I couldn't get data but just had reception to make calls. So I changed the name to AT&T and the APN name to phone and I get data and reception but it still drops in and out.
I went to ATT to see what they could suggest but the only thing they offered was maybe a faulty SIM card and switched it out but it's still doing the same thing... Has anyone experienced this? Should I do a factory reset maybe? If I do that, I won't lose SIM unlock right?
Click to expand...
Click to collapse
I was going to suggest a factory reset as a last resort. You won't lose the sim unlock; it's permanent unlock.
Troubleshooting is the name of the game and you'll have to keep having to try potential solutions until it's fixed.
Hopefully it's not a hardware issue with the radio or you'll have to swap it out and reunlock it all over again.
are you on 10A or 10D?
10D seems to improve the radio... but if you wan root/twrp make sure you do all that on 10A first before upgrading to 10D.
also, have you tested the phone in different areas? or just at your house and immediate area? perhaps it's just an issue in specific locations? what if you drive across town or something?
smartnphone said:
I was going to suggest a factory reset as a last resort. You won't lose the sim unlock; it's permanent unlock.
Troubleshooting is the name of the game and you'll have to keep having to try potential solutions until it's fixed.
Hopefully it's not a hardware issue with the radio or you'll have to swap it out and reunlock it all over again.
Click to expand...
Click to collapse
Performed a factory reset and issue is still there but slightly improved but I need to test it more... Basically, when I wake the phone it searches for network (not all the time but here and there) then locks a signal..
autoprime said:
are you on 10A or 10D?
10D seems to improve the radio... but if you wan root/twrp make sure you do all that on 10A first before upgrading to 10D.
also, have you tested the phone in different areas? or just at your house and immediate area? perhaps it's just an issue in specific locations? what if you drive across town or something?
Click to expand...
Click to collapse
In on 10D.. Yeah I tried it in different areas and driving when I'm art a stoplight I can see it searching for network.. I switched the SIM card and did a factory reset any other suggestions?
Is your Network mode set to GSM/WCDMA/LTE auto? If it's not area specific it might be hardware related.
How did you get the 10D update on AT&T btw?
smartnphone said:
Is your Network mode set to GSM/WCDMA/LTE auto? If it's not area specific it might be hardware related.
How did you get the 10D update on AT&T btw?
Click to expand...
Click to collapse
Yes, my network mode is set to that setting. The person I purchase this phone from had T-Mobile and updated before they sold it to me.
sguerra923 said:
Yes, my network mode is set to that setting. The person I purchase this phone from had T-Mobile and updated before they sold it to me.
Click to expand...
Click to collapse
Last thing to try is Mobile networks>Network operators>Search networks. Maybe manually choosing one might help? Enable Data Roaming?
Could be a hardware issue if not software.
smartnphone said:
Last thing to try is Mobile networks>Network operators>Search networks. Maybe manually choosing one might help? Enable Data Roaming?
Could be a hardware issue if not software.
Click to expand...
Click to collapse
Yeah, I tried that too.. Got back from Tmobile and they said that another person experienced the same issue couple weeks ago and they said that some G5s that are unlocked and used on different networks are still trying to jumping back on the tmobiles phone network hence my phone searching signals off and on...
Just wanted to give another confirmation that the LG-H830 works perfectly on AT&T (H83010D [BL,modem,system], rooted, unlocked). I gave up on Verizon and my fiancé now uses it on AT&T. She loves it!
Geez.. I got scammed. The person looks like they file a insurance claim on the phone so my ESN is blacklisted! Great! Lesson learned the hard way. Any suggestions what I can do? I saw that people are buying bad ESN phone on ebay as long as I post that it's a bad ESN.
OP, I had the exact same problem on T-Mobile after doing a temporary unlock. I took it to a T-mobile store and they tried swapping the SIM but that didn't help so they did a warranty replacement. Two days later I had a new phone and everything works again. I didn't (and won't) try to SIM unlock it again.
Sent from my LG-H830 using XDA-Developers mobile app
I have heard of people getting past blacklist. Think you can pay to fix it.
---------- Post added at 11:14 PM ---------- Previous post was at 11:13 PM ----------
Are you guys not changing the apns xml file????? Or enable roaming and setting rat to global?
jhasty01 said:
I have heard of people getting past blacklist. Think you can pay to fix it.
---------- Post added at 11:14 PM ---------- Previous post was at 11:13 PM ----------
Are you guys not changing the apns xml file????? Or enable roaming and setting rat to global?
Click to expand...
Click to collapse
I did some research online on blacklist repairs but do you or can anyone give me some recommendations on it? Sucks cause even if I get it repaired I wondering if I still will have issues with the reception..
Anyone tried this site? http://www.imeifix.com/
I just tried the sim unlock as well. I'm a tmobile customer so I really didn't have a reason to do it. Just wanted to see if it would unlock.
Well it said it could not be unlocked and I, out of dumb curiosity tried the temporary unlock. It worked and said it is unlocked until August. I think roughly 30 days after I did it.
Well, later that day or the next my phone started doing the same exact thing. Signal dropping and searching. Furthermore though, I woke up to a warm phone today. Same as it gets when doing lots of app updates. I unplugged it from the charger and watched the battery drop 4% in only 15 minutes of standby (screen off, not using the phone).
I just flashed it back to stock and relocked the boot loader and will see if it fixed it. Was running rooted 10d when this happened.
I'm starting to think that sim unlock app is evil or something. I haven't put my sim card back in as of yet but will update if it starts acting up when I do.
Possible explanation?:
I noticed a T-Mobile diagnostic app try to gain root access during the weirdness which I had never seen before. Maybe the sim unlock gains a sudo root to do the unlock but on a rooted phone with a non stock root manager causes the unlock app to endlessly loop trying to gain access and thus cause a warm phone and signal dropouts? Just a hunch but would be interested to see what others think.
*** Ok so quick update, I put my tmobile sim back in and the signal is dropping in and out again. The phone worked fine before I tried the unlock. This is so uncool.
Sent from my LG-H830 using XDA-Developers mobile app
I think I may have isolated the cause. I disabled the device unlock app in app settings and rebooted. Since then I haven't noticed the signal drop out.
EDIT: Yeah, that's a big nope. I'm still experiencing the problem after a total wipe and reflashing using LGUP refurbish mode. It's still dropping in and out, sometimes three times per minute. +1 to never use device unlock app.
I'm on stock unrooted 10d btw.
Oh, and the same SIM card works just fine in my older phones.
Sent from my LG-H830 using XDA-Developers mobile app
For what its worth, Att doesn't use the exact same bands as t Mobile....you might want to research some threads on the Att LG G5.
I unlocked my note 10+ 5g from t-mobile, but it won't get service with verizon.
When I install a non-tmobile sim, the software does not switch from tmobile for some reason.
Also Sam Mobile only has t-mobile and metro pcs firmware availible for the sm-n976u
Does anyone know if there is a way to get the phone working with verizon? Thanks.
-God Bless
Try clearing Sim card tool kit data.
Network reset.
Clear system cache.
Edit Access point names to correct values.
That's all I got but sure there's more. Never had use more than the above but never changed carriers. Verizon advanced tech support should be able to help... AT&T would.
The Verizon Note 10+ 5G has a different model number. So they probably won't allow the T-Mobile/Metro/AT&T version on their network
iBowToAndroid said:
The Verizon Note 10+ 5G has a different model number. So they probably won't allow the T-Mobile/Metro/AT&T version on their network
Click to expand...
Click to collapse
I think you're correct. AT&T is compatible with Tmobile but not Verizon according to B&H Photo compatibility charts.
So it look like AT&T is in your future. AT&T is easier to deal with anyway. Do not use a corporate store though, use over the phone or online AT&T.
It may be possible to change out the C port PCB for the Verizon variant. Yes that PCB controls internet access. I can't confirm this is the only difference though! That PCB is only $20 and relatively easy to change out.
blackhawk said:
I think you're correct. AT&T is compatible with Tmobile but not Verizon according to B&H Photo compatibility charts.
So it look like AT&T is in your future. AT&T is easier to deal with anyway. Do not use a corporate store though, use over the phone or online AT&T.
It may be possible to change out the C port PCB for the Verizon variant. Yes that PCB controls internet access. I can't confirm this is the only difference though! That PCB is only $20 and relatively easy to change out.
Click to expand...
Click to collapse
It's gets service with att, but it still has the tmobile boot logo. I flashed the att rom, but it didn't help. The carrier is supposed to automatically switch when you insert a different sim card right?
I also tried *#272*imei# but it says "unable to process the request"
CPR.OP546 said:
It's gets service with att, but it still has the tmobile boot logo. I flashed the att rom, but it didn't help. The carrier is supposed to automatically switch when you insert a different sim card right?
I also tried *#272*imei# but it says "unable to process the request"
Click to expand...
Click to collapse
Is it on Verizon or AT&T???
My 60 second attention span is kicking in... now.
As for switching sims I never had to.
The boot logo is the least of worries.
Be glad you didn't brick it.
blackhawk said:
Be glad you didn't brick it.
Click to expand...
Click to collapse
It's actually super difficult to hard brick a Qualcomm device, and even if it is hard bricked and only enters EDL mode, it can be fixed as long as you have the correct files.
There are too many safeguards in place between Qualcomm and Samsung - the average user will always be blocked from doing anything that would brick a device. There's really no danger in flashing firmware whatsoever
blackhawk said:
Is it on Verizon or AT&T???
My 60 second attention span is kicking in... now.
As for switching sims I never had to.
The boot logo is the least of worries.
Be glad you didn't brick it.
Click to expand...
Click to collapse
I'm trying to use it with att because it won't get service with verizon at all.
It's very annoying having the tmobile bloatware. Also it should be compatible with att's 5g, but it only gets lte.
CPR.OP546 said:
I'm trying to use it with att because it won't get service with verizon at all.
It's very annoying having the tmobile bloatware. Also it should be compatible with att's 5g, but it only gets lte.
Click to expand...
Click to collapse
So then I'm assuming that it did not automatically change over to the AT&T splash screen and bloatware when you inserted an AT&T SIM?
iBowToAndroid said:
So then I'm assuming that it did not automatically change over to the AT&T splash screen and bloatware when you inserted an AT&T SIM?
Click to expand...
Click to collapse
Right. It does not have a multi-csc mode for some reason. I thought all samsung phones had that by default.
CPR.OP546 said:
Right. It does not have a multi-csc mode for some reason. I thought all samsung phones had that by default.
Click to expand...
Click to collapse
Not all, no. But all U models should have it.
Have you tried doing a full Odin firmware flash including an AT&T USERDATA file?
iBowToAndroid said:
Not all, no. But all U models should have it.
Have you tried doing a full Odin firmware flash including an AT&T USERDATA file?
Click to expand...
Click to collapse
Yes. That is what I meant by flashing the att rom. It does not seem to make a difference.
CPR.OP546 said:
Yes. That is what I meant by flashing the att rom. It does not seem to make a difference.
Click to expand...
Click to collapse
I may have a way to do it. No guarantees though
iBowToAndroid said:
I may have a way to do it. No guarantees though
Click to expand...
Click to collapse
I'm guessing the only option left is to root the phone, and then start manually removing things.
CPR.OP546 said:
I'm guessing the only option left is to root the phone, and then start manually removing things.
Click to expand...
Click to collapse
My method doesn't involve root, no. You can't root if you've taken an OTA update in March of this year or later
I hope I can be of some help.
I recently ordered a Note 10+ 5G - Locked Verizon from a popular online re-seller. When I turned it on, I was greeted with an AT&T boot logo. I was pretty upset, but I though I'd try to get it up and running on Verizon before spending a couple weeks sending it back and getting a replacement. I tried Verizon's online software and I couldn't get beyond the IMEI change. It kept telling me that the Note's IMEI was what I was already using with my Droid, which was obviously not the case. So, I headed into my local Verizon store.
Nothing they did would get my 4G SIM to work, so they swapped out for a 5G SIM for free, then switched my hardware IMEI numbers and proceeded to have a some difficulty getting on the network. After doing a network reset, it seemingly worked. More on that below. I was getting both data and voice over network. I was able to transfer my setting, apps, etc from my Motorola Droid with Samsung Switch. The phone indicates both 3G and 4G signals as I travel around town. 5G is not available in my immediate area, though it is in some cities I occasionally travel to, but I'm unable to test that just yet. I become aware that there are differences between Verizon's 5G and other networks and it seems the non-Verizon phone I have is probably for the best in terms of compatibility.
Unfortunately, texts frequently take 10-30 seconds to send. Images, gifs and other non-text MMS can take multiple minutes to send and sometimes just fail. Other times the recipient will receive them twice. I feel like this may be due to the poor coverage at my residence. Further testing in areas of good to excellent coverage are necessary. I tried changing the network settings from Settings > Connections > Mobile Networks > Network Mode, but anything other than the default "GLOBAL" would result in a disconnect of data and voice services. The only way to fix it was Settings > General Management > Reset > Reset Network Settings. This would restore the Mode to GLOBAL and bring back data and voice services.
In an effort to remove the AT&T branding, I learned how to trigger a carrier switch, dialed the code and changed it from AT&T to XAA. That got rid of the AT&T boot animation and I was able to remove all but 2 stubborn AT&T apps. I noticed that my android version was 10 and UI was 2.5, so I set out to update.
This is where things got frustrating. Every attempt to update through the settings > software update was met with failure. Try again in 24 hours, it would say. I assumed this was because I was now using a Verizon sim on an AT&T firmware, but I wasn't sure. I thought I might be able to flash to a Verizon firmware, but after several versions and some more research, I learned that going from 976U to 976V was not possible.
So, over the course of several days, I learned a lot. I looked up the firmware releases on AT&T's website for the 976U and saw that they matched the T-Mobile and MetroPCS versions. So, I settled on a T-Mobile version of Android 11 / UI 3.1. It updated without any issues and even remained in XAA mode. No bloatware, no loading images, all settings and apps the same.
So, even though I have an unlocked AT&T Note 10+ 5G 256GB and you have a T-Mobile, the fact that we both have a 976U model, I think there is hope for you to get up and running on Verizon.
Hope this has helped.
T-Mobile Variant OP7P, was on Latest Pixel Experience+, Sim Unlocked, Unlocked Bootloader - Went to transition the phone back to T-Mobile stock OOS, not sure what happened. But since, The Sim card is recognized, but carrier and phone # are not, resulting in no service, also cannot modify APN settings.
Have tried to MSM back to all different firmware, remains the same, SIM Active, but not usable for mobile data or anything else
Try clearing the sim toolkit data, clear system cache and network reset.
Replace sim card. They are suspectable to ESD; always handle them like a stick of ram. While they are dirt cheap, a failure can prove costly in other ways.
A factory reset to purge it if less drastic measures don't work.
Not sure, never had to play with that.
NickG1801 said:
T-Mobile Variant OP7P, was on Latest Pixel Experience+, Sim Unlocked, Unlocked Bootloader - Went to transition the phone back to T-Mobile stock OOS, not sure what happened. But since, The Sim card is recognized, but carrier and phone # are not, resulting in no service, also cannot modify APN settings.
Have tried to MSM back to all different firmware, remains the same, SIM Active, but not usable for mobile data or anything else
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Hello, I was previously on a htc u11 and had something similar as in no data connection and no wifi, Mac address issue,,the thing that fixed my problem was an "erase persist" command in bootloader, not saying this will help your problem , just throwing it out there.
blackhawk said:
Try clearing the sim toolkit data, clear system cache and network reset.
Replace sim card. They are suspectable to ESD; always handle them like a stick of ram. While they are dirt cheap, a failure can prove costly in other ways.
A factory reset to purge it if less drastic measures don't work.
Not sure, never had to play with that.
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I MSM'd to stock firmware versions around 10 times, nothing different. Should've mentioned that the SIM works fine on my other phone, thing is totally clueless on how to read my SIM card it seems, registers as having one inserted and all, just doesn't do anything
Cannot even access APN settings when updated to the latest TMO Android 11, started from first Android 9 distro and continued updating on both paths, TMO and International versions of OOS, even tried flashing back to Pixel Experience- the ROM that was being used right before this took place.
hammered58 said:
Hello, I was previously on a htc u11 and had something similar as in no data connection and no wifi, Mac address issue,,the thing that fixed my problem was an "erase persist" command in bootloader, not saying this will help your problem , just throwing it out there.
Click to expand...
Click to collapse
Weird thing is Wifi works, think I may have messed up EFS but not sure, IMEI is still valid and Wifi works, seems like only 2.4Ghz though with the speed of it
Try a hard reboot.
blackhawk said:
Try a hard reboot.
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Just attempted hard reboot through recovery - no change unfortunately, thanks for the suggestion
NickG1801 said:
Just attempted hard reboot through recovery - no change unfortunately, thanks for the suggestion
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Hard reboot stimulates pulling the battery. Not normally found in recovery. Done by holding down a button(s) depending on the phone or physically disconnecting the battery.
blackhawk said:
Hard reboot stimulates pulling the battery. Not normally found in recovery. Done by holding down a button(s) depending on the phone or physically disconnecting the battery.
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Still no luck , thanks again for the suggestion though