New APN refuses to save and cannot edit existing NO MMS - Samsung Galaxy S20 / S20+ / S20 Ultra Questions &

I have a Sm-g988U that I have flashed to SM-G988U1 to run the OneUI 4.0 Beta and everything was working great but once I went to the beta I lost MMS. The MMS part of the APN that the phone Automatically loads is missing and the phone refuses to save any new APN. And Since it is a Verizon Based Sim (Visible) all the ways via secret codes to change things do not work. Ive tried everything. Someone help please!

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[Q] any custom apn not working

Hi guys,
i'm going crazy trying to figure out what is wrong with my Desire HD.
On my sim card, i have 2 apns enabled: internet.vodafone.ro, vpn.vodafone.ro. The first one gives me internet access, the second one lets me read my work email.
Using the stock firmware, i've managed to get them both to work: just completed the apn, username and password fields, leaving everything else blank.
If I use any custom rom (Leo, core, pnk29(cm7), grh78,...) i cannot use the private apn. i've tried and tried all over again but it just doesn't connect (i get the "connection failure"). i've tried to delete user date, everything, but it didn't work. if i restore the original rom, everything seems to work normal...
Where should i start looking into because it is making me crazy...
thank you,

[Q] no data/apn on 4.3

I have the t989 telus phone running aokp_herculese_jb-mr2_milestone1 with the baseband t989dtlmc4 and for whatever reason there are no apn settings. any time i try to add an apn it will not save. when i insert the sim card (it's my friends phone, so she has another phone kept her sim) it's the same deal - no data, no apn and last night when i tested it wouldn't send text messages or anything else.
I have tried flashing multiple radios, but it doesn't appear to have worked. i've combed through these threads and really can't find a solution so i'm hoping it's something simple i missed.
Thanks!
First, the first radio you had was the one you need. No older radios work anymore. Unless you're on ICS.
And try editing an APN that's there already, I stead of creating a new one. And save. That worked for me in the past. Make sure you edit every line in it to match the settings you should have.

[Q] PRL Error Code 6 MMS Not working!

PRL Error Code 6 MMS Not working!
Please help me out guys, haven't had this much trouble with prl's or apns ever but this is driving me crazy and couldn't find anything googling. So basically I had a stock ND8 sprint gs3. Wiped via factory reset then flashed twrp via odin then cyanogenmod11. This is when the problems started. I couldn't send mms. Looked at apn and it says there were over 1600 provider settings! Even had stuff for UK + Asia... Backed up my apns from my other working gs3 (16apns for sprint only ) and no difference. Then I flashed back to wicked7.3 and tried updating prl or profile and keep getting error code 6. Still shows the 16 sprint apns only. PLEASE HELP! TYIA
UPDATE: This is a service error, not your phone. I had to call Sprint. They reinitialized services and it was up and working within 5 mins.

[Q] MMS not working for CM 12.1

Anyone else having problems sending or receiving with MMS on the nightly builds for CM 12.1? My SMS works just fine.
I have Ting, which may be part of my problem. I am using the same APN settings that use to work for MMS in CyanogenMod 11.
Yep. I've been fighting this for 3 days now. I must have tried every CM 12.1 variant out there with the same result. The APN list shows Ting... but you cannot select it, modify it, or save it. Reset to Default APN doesn't work... Rebooting 18 times doesn't work... flashing the various APN "fixes" like for FreedomPop, MVNO_CDMA, etc doesn't work. But like you... SMS, Phone, and Data (on WiFi) work fine. However, MMS and data (on 3G/4G) don't work.
What has worked... backing off to either a Stock ROM or CM 11. So something in these recent CM 12.1 builds is just broken. The only reason I was trying to upgrade from CM 11 to CM 12.1 was because of that StageFright vulnerability. So I may just go with the Stock ROM until I see the CM 12.1 APN issue for Ting has been resolved.
I've been using the clear google messaging app from the TBO updater app and just installed their latest hangouts to try. They both have been handling mms better than any other messaging apps and sometimes the stock mms will work by just having the gmessenger app installed. I've been rom hopping lately and it seems pretty much the same for me across most CM12.1 based ROMs. Also, you could try editing the actual apns-conf.xml file under /system/etc/ back it up first tho and for permissions 644. from my Virgin Mobile Tri-Band model S3
zentsang said:
Yep. I've been fighting this for 3 days now. I must have tried every CM 12.1 variant out there with the same result. The APN list shows Ting... but you cannot select it, modify it, or save it. Reset to Default APN doesn't work... Rebooting 18 times doesn't work... flashing the various APN "fixes" like for FreedomPop, MVNO_CDMA, etc doesn't work. But like you... SMS, Phone, and Data (on WiFi) work fine. However, MMS and data (on 3G/4G) don't work.
What has worked... backing off to either a Stock ROM or CM 11. So something in these recent CM 12.1 builds is just broken. The only reason I was trying to upgrade from CM 11 to CM 12.1 was because of that StageFright vulnerability. So I may just go with the Stock ROM until I see the CM 12.1 APN issue for Ting has been resolved.
Click to expand...
Click to collapse
You should be able to modify Ting by touching the name, even when the button for selecting it is absent. You may need to add "default" to the type once you have it open. I have Ting and I have had to deal with this somewhat as well. I believe I saw some recent Ting APN updates get pushed through as well. Have you tried Exodus?
There is also another thread in here about lollipop and 5.1 which has information that may help.
monsterpenguin5 said:
You should be able to modify Ting by touching the name, even when the button for selecting it is absent. You may need to add "default" to the type once you have it open. I have Ting and I have had to deal with this somewhat as well. I believe I saw some recent Ting APN updates get pushed through as well. Have you tried Exodus?
There is also another thread in here about lollipop and 5.1 which has information that may help.
Click to expand...
Click to collapse
Exodus? Nope... but I'll be checking it out now!
If you don't mind me asking more about the APN. How many are actually needed in there? If I were to delete all the APNs and just manually setup the 1 needed... is it just the LTE version pointing to http://mms.plspictures.com ... or ... http://mms.sprintpcs.com and making sure the "type" has "default" in it? It's the one thing that I can't understand. Out of every forum I've read... not 1 mentions just blowing all the APNs away and just simply adding a single APN for Ting. I don't think I really need all 8-16 APNs (depending on the ROM you flash).
And this question is open to anyone. Is there any reason you have to have all those APNs for other networks like Boost, FreedomPop, Boost Mobile, etc? What should the APN contents be for just Ting? Inquiring minds want to know.
zentsang said:
Exodus? Nope... but I'll be checking it out now!
If you don't mind me asking more about the APN. How many are actually needed in there? If I were to delete all the APNs and just manually setup the 1 needed... is it just the LTE version pointing to http://mms.plspictures.com ... or ... http://mms.sprintpcs.com and making sure the "type" has "default" in it? It's the one thing that I can't understand. Out of every forum I've read... not 1 mentions just blowing all the APNs away and just simply adding a single APN for Ting. I don't think I really need all 8-16 APNs (depending on the ROM you flash).
Click to expand...
Click to collapse
I actually tried that myself but didn't have any luck with it sticking past reboot or even holding the data signal right. It's possible it might work. I don't know enough about APN's to say for sure. Did you try adding "default" to the beginning of the Ting APN type and then save it?

i need help with getting my data back working on my verzion s8 its stock

i am having a problem with my data everything else work like mms texts calls and wifi calling but my s8plus is a verzion one before i updated its thur my surface pro 4 its its windows 10 everything up to date on but anyways ok let me explain this best i can i know a lot about phones I'm not noob to this but i cant get my data working i have verzion s8plus its stock and everything nothing has happened to it or been rooted but since its been updated to the December update that Samsung posted now my verzion s8plus turned into a tracfone s8 plus even has the build number NRD90M.G955USQS2BQL1 I think that's the verzion build number this is the service provider sw version its changed to SAOMC_SM-G955U_OYN_TFN_0149 9889194556524f534a TFN/TFN/VZW before its updated its was vzw/vzw/vzw but somehow Samsung put a new feature on the s8plus so when you have a new carrier sim in it don't matter what carrier you using i am using total wireless and i been using it since September of last year everything worked fine its even still had verzion boot logo and everything and when its updated its said new sim inserted so i hit ok so its rebooted and i notice that its changed the boot logo to tracfone wireless its changed everything all the verzion apps where gone off of it its had the verzion apps before and my data worked fine before bc Samsung ad all the carrier apns stored so whatever carrier you on its will have the apn there i liked that feature so you don't have to look it up online and enter it in but now its has the correct apn but my data aint working at all now i don't want to reset my phone to factory i tried everything in my power to enter another apn and its wont even let me change or add one or delete it if anybody can help me in anyway i would thank you a lot but i cant change roms either i cant even load the unlocked firmware to my phone either i tried before and its failed everytime so if you think i can change roms i cant because i cant get it to work so any help best way to contact me is on my email it is [email protected] so contact me on that or if anybody can help me change roms i would like to but i reallt don't want to reset my phone bc i have my life on it please help asap
badazznc1 said:
i am having a problem with my data everything else work like mms texts calls and wifi calling but my s8plus is a verzion one before i updated its thur my surface pro 4 its its windows 10 everything up to date on but anyways ok let me explain this best i can i know a lot about phones I'm not noob to this but i cant get my data working i have verzion s8plus its stock and everything nothing has happened to it or been rooted but since its been updated to the December update that Samsung posted now my verzion s8plus turned into a tracfone s8 plus even has the build number NRD90M.G955USQS2BQL1 I think that's the verzion build number this is the service provider sw version its changed to SAOMC_SM-G955U_OYN_TFN_0149 9889194556524f534a TFN/TFN/VZW before its updated its was vzw/vzw/vzw but somehow Samsung put a new feature on the s8plus so when you have a new carrier sim in it don't matter what carrier you using i am using total wireless and i been using it since September of last year everything worked fine its even still had verzion boot logo and everything and when its updated its said new sim inserted so i hit ok so its rebooted and i notice that its changed the boot logo to tracfone wireless its changed everything all the verzion apps where gone off of it its had the verzion apps before and my data worked fine before bc Samsung ad all the carrier apns stored so whatever carrier you on its will have the apn there i liked that feature so you don't have to look it up online and enter it in but now its has the correct apn but my data aint working at all now i don't want to reset my phone to factory i tried everything in my power to enter another apn and its wont even let me change or add one or delete it if anybody can help me in anyway i would thank you a lot but i cant change roms either i cant even load the unlocked firmware to my phone either i tried before and its failed everytime so if you think i can change roms i cant because i cant get it to work so any help best way to contact me is on my email it is [email protected] so contact me on that or if anybody can help me change roms i would like to but i reallt don't want to reset my phone bc i have my life on it please help asap
Click to expand...
Click to collapse
Ok, so I dont have an answer for you, but your post is relevant to my situation. I have s8+ thats tracfone/straight talk on vzw towers... I'm wanting to put g955u1/xaa on it to unlock it... but unsure if I should use the tracfone fw or the vzw fw... any help is appriciated. Until then I'll just flash and test.

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