935p unlocked and flashed to 935u but can't pick up cdma bands - Samsung Galaxy S7 Edge Questions and Answers

So maybe this was a bad idea but I'm on boom mobile (verizon mvno) and thought I could save some money and picked up a sprint s7 edge on sale, I just had it unlocked and they flashed it to the 935u unlocked version. The problem is I can't connect to the verizon network, after playing around with it a bit I got it to connect to the verizon lte network but still no voice. In my meager attempts to troubleshoot I noticed I have the options under network mode of
LTE/3g/2g -->> this picks up all networks in my area (Verizon, Sprint, ATT, Tmobile, US Cellular)
3g/2g --> only shows ATT and Tmobile
3g --> only shows ATT and Tmobile
2g --> only Tmobile
So I'm thinking my phone isn't setup right to connect to cdma networks which I thought the 935u rom was supposed to do. Anyone have any tips on how i can further troubleshoot this?
Thanks in advance.
edit: Well I installed a program called 4g LTE switch and set it to cdma only and I was able to make a phone call (3g data also worked) like that but changing it to LTE/cdma wouldn't let me make a call but LTE data worked, if i leave it set to LTE/cdma and reboot it switches back to LTE only.
edit2: Maybe it's trying to connect to volte which isn't offered for Verizon MVNO's yet but i don't see any settings available to disable that.
edit3: When set to LTE/CDMA I could sometimes make outgoing calls, sometimes I would get the double dial prompt, it was very slow to switch between LTE and CDMA so I would miss incoming phone calls.
I threw in the towel and just flashed the latest Verizon rom and it's working properly.

Related

After filing a complaint with the FCC against Verizon, I got a call from a VZW rep

So, as some of you know, if you use the XT1060 with T-Mobile and connect to LTE, you'll have one of two issues: 1) it connects to LTE, but you can no longer call out (or receive calls) as the phone falls back to CDMA even when locked out in the network settings, or 2) it doesn't connect to LTE because it locks the T-Mobile 3G APN in even when a manual entry T-Mobile LTE APN is selected (my issue). My X absolutely REFUSED to move to fast.t-mobile.com and failed to connect to LTE and had absolutely no signal whatsoever (no HSPA or GSM even when on LTE/GSM/UMTS). The reason from the tower: APNfailed. Tried a million times to change the APN in the LTE area to no avail.
I've found it will only change to fast.t-mobile.com (manually entered) in a non-LTE area. Well that's a great inconvenience. I had to disable LTE completely and restart the phone to get it back on HSPA+ (or wait 5-10 minutes).
Anyway, the Verizon rep called me to "troubleshoot" my issues when connecting to T-Mobile LTE. I refused to go through the typical troubleshooting steps because none of it worked when I tried, so it's not magically going to change. I found that interesting (that they'd call me) even though I've had no direct contact with Verizon. Anyway, nothing was really resolved.
Both of these issues are violations of the C-block agreement. Also, if you select Global mode, it'll default to EDGE even though HSPA is available. It'll go to HSPA after selecting LTE/GSM/UMTS, UMTS only, then move back to Global. Interesting how they make you go through these hoops, eh?
Jason.DROID said:
So, as some of you know, if you use the XT1060 with T-Mobile and connect to LTE, you'll have one of two issues: 1) it connects to LTE, but you can no longer call out (or receive calls) as the phone falls back to CDMA even when locked out in the network settings, or 2) it doesn't connect to LTE because it locks the T-Mobile 3G APN in even when a manual entry T-Mobile LTE APN is selected (my issue). My X absolutely REFUSED to move to fast.t-mobile.com and failed to connect to LTE and had absolutely no signal whatsoever (no HSPA or GSM even when on LTE/GSM/UMTS). The reason from the tower: APNfailed. Tried a million times to change the APN in the LTE area to no avail.
I've found it will only change to fast.t-mobile.com (manually entered) in a non-LTE area. Well that's a great inconvenience. I had to disable LTE completely and restart the phone to get it back on HSPA+ (or wait 5-10 minutes).
Anyway, the Verizon rep called me to "troubleshoot" my issues when connecting to T-Mobile LTE. I refused to go through the typical troubleshooting steps because none of it worked when I tried, so it's not magically going to change. I found that interesting (that they'd call me) even though I've had no direct contact with Verizon. Anyway, nothing was really resolved.
Both of these issues are violations of the C-block agreement. Also, if you select Global mode, it'll default to EDGE even though HSPA is available. It'll go to HSPA after selecting LTE/GSM/UMTS, UMTS only, then move back to Global. Interesting how they make you go through these hoops, eh?
Click to expand...
Click to collapse
Wow. Hopefully something changes with Verizon and letting people use LTE on other carriers. I know almost all Verizon phones don't get LTE on any carrier other than Verizon even if the LTE bands are supported. Verizon is full of crap.

Signal issues when using on GSM Network

I switched my parents over to Cricket from Verizon today. They both have S5's. I set the network mode to lte/wdcma/gsm but it keeps going from Edge, HSPA, and emergency calls only. So I thought I'd try setting it to WCDMA only well I can't as *#*#4636#*#* does NOT work.
While my LG G2 on cricket and my iPhone 7 on AT&T sit and hold both a steady HSPA or LTE perfectly fine without issue which is the reason I switched them.
Any suggestions? Would setting to global be better? I would assume it would make matters worse.
Both phones are running MM and I haven't really kept up with roms/root/etc for Samsung stuff.
Thanks

Guide to get 4G LTE Total Wireless ( Verizon ) with 3G issue

First you need to make sure your APN settings are correct.
With my service I had to change that APN to tracphone.vzwentp and that got my 3G service.
After that Dial *#*#4636#*#* for phone testing
Go into * Phone information *
Then down to * Set preferred network type * and set it to * LTE/CDMA auto (PRL) *
This helped give me 4G LTE
And or you need to change the preferred network under cellular network settings to LTE/CDMA
First post so let me know if I need to change anything thanks
So apparently when I changed the band over to USA Band it gave me LTE. The calling worked for around two days and then just stopped working but I still had LTE.
Once I changed the Band back over to Cellular it gave me calling and txt back. I can switch it back and forth to get either 3G or 4G.
I'm hoping that with the new Nougat update it will fix this issue but for now if your calling and LTE work for you on USA Band more power too you.
If the Nougat update doesn't fix this issue I'm going back to Straight Talk AT&T where I had 4G LTE, Talk, and TXT
Motorola Moto G4 XT1625
Total Wireless (Verizon Network)
Android 6.0.1
What 4g speeds are you getting? Hear Verizon mvno are capped at 5mbps
brownd7380 said:
What 4g speeds are you getting? Hear Verizon mvno are capped at 5mbps
Click to expand...
Click to collapse
I only get 5.4mbps down and 2.3mbps up so far.
I'm headed to California in two weeks where I wanted to test it.
Before when I was a Verizon customer I got 65mbps down so I'll see if it's different there too.
It's possible it is throttled. I have Net10 and using the CDMA option because Verizon has awesome signal where I live compared to att. Att did have higher speed rates on LTE but 5mpbs is more than enough for what I need and what anyone should need.
All Verizon MVNOs are throttled to ~5Mbps down, ~2Mbps up. Only Verizon Prepaid proper and Verizon Postpaid are unthrottled.
Hi there, your guide helped me get on LTE. Thank you!
United States band option is located in the 3 dots in the upper right hand corner.
So why in the world is it that these MVNOs recognize this phone straight away using the verizon network, but through VZW I can only get 3G? This is infuriating! I set up several of these for friends on prepaid networks and they all worked straight away with 4G. Finally added our son to our VZW plan so he could use his phone as an actual phone and it's stuck in 3G hell.
I'm on an MNVO using Verizon's network and it defaulted to 3G. I had to do this to get on 4G. I've lost the ability to make phone calls though, so I'm using hangouts for that function.
I can confirm that regular calling does not function on 4G LTE so like the OP, I am having to switch back and forth on Automatic and United States which is aggrivating.
I hope this helps someone:
I have LineageOS 14 nightly installed on this phone. I was going to return it because I was tired of dealing with the switch to make calls.
I figured out that my baseband wasn't the latest, so I figured one final nuclear option of flashing the stock back on to the device would potentially help this.
After a long bout with a soft bricked phone, I managed to get the phone to flash back to stock Amazon adz and then take an OTA. My baseband changed from x45R to x62R.
I then reflashed TWRP and LineageOS 14. It still didn't work but I played around with the settings and managed to get it working. You have to set the Radio Band to Automatic and then you'll get LTE data and CDMA voice. Preferred network type in Mobile network settings is LTE / CDMA. FYI The settings may reset after a reboot.

Lost LTE after flashing 64 bit rom - I have LTE on Mint Sim, but not Ting! Weird

I use Ting, and LTE is available in my area (wife's on same plan) I lost my LTE/4g after flashing Cosmic OS. I've been struggling along with 3g just fine. The phone never showed CDMA - always showed "Global" in the network settings, if I Switch to LTE preferred I lose my signal and have to reset my network settings.
I ordered the MintSIM test kit, and installed it today...and I had LTE. Mint runs off of T-Mobile, Ting runs off of Sprint.
My LTE isn't gone... it's just gone from the CDMA side of things.
Has anyone else flashed Oreo onto a Sprint networked phone and retained their LTE? Is it something with the current ROMS and Sprint?
Experiencing the same after flashing FrankenRom.
Don't get LTE with Tello but I get LTE fine with redpocket T-Mobile.

Galaxy s10+ Sprint Unlocked issues on other network.

Let me start by saying that this phone works great. I had it unlocked and practically all is well. There is one issue i am having.
The phone will not automatically reconnect to LTE. My carrier does not support voLTE so it switches to 3g for calls. After a call, the phone stays on 3g and I have to manually toggle the 3G and LTE under network settings to get it to go back to LTE. My carrier uses Bands 12 and 17 and both of these bands have strong signal on the phone when connected to LTE.
I also installed the stock U1 firmware on the mobile to remove all the sprint bloat. Now this issue is the only peeve. I did factory reset it and I also reinstalled the firmware a second time to no avail. The phone did the carrier provisioning on initial start-up after sim was inserted. So I am at a loss.
I had an At&t s10+ which I sold and never had these issues and i did the very same to it as well. I was going to by the OnePlus 7 Pro but i loved the s10+ so i had to go back. It is not such a big deal because i don't make that many calls or receive so many but it is bit annoying. Any solutions?

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