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Hello,
I have posted this on the cyanogenmod forum but everyone seems to be on holiday as I'm getting no replies. I'm hoping someone on here can help.
I recently had CM12.1 running on my S5 SM-G900F for about six months with no problems. I then switched over to CM13 and used that for about a month without any problems.
I decided to go back to CM12.1, I flashed the same CM12.1 Snapshot file that I had been using previously and it installed without error but when I rebooted the phone it would crash and reboot in a loop during start up. I wiped the phone and tried the install again about four or five times having the same problem until on the final attempt it managed to load the OS. Now that I have the OS running I cant connect to WIFI, the 'back' and 'recent apps' buttons on the phone don't respond (the home button does work), the camera app doesn't work (I get the error 'Can connect to Camera') and it keeps crashing and restarting on reboot. Everything else seems to work but the phone seems sluggish and there may be other errors that I haven't come across yet.
I thought that there may be a problem with the zip file I was flashing so I downloaded it again but it did the same thing. I've tried wiping and reinstalling several times but I get the exact same problems. The file I'm flashing is:
cm-12.1-20151007-SNAPSHOT-YOG4PAO333-klte.zip
If I go back to CM13 everything works fine so the problem is only with CM12.1.
I'm at a lost to explain why this keeps happening as I've had this running fine on my phone previously and wiping the phone and starting again doesn't do anything to solve the problem.
Any ideas please?
Come on people! Have a guess, I'm really stuck here!
I myself have not installed any custom roms on my s5 yet (bc of knox 0x0 lol) but try reverting back to the stock rom and then install cm12.1 again, maybe it could work.
Thanks, but I've tried that. Both stock rom and CM13 work without a problem. The issue only seems to be with CM12.1.
Can you tell what bothered you to go away from cm13 back to cm 12.1?
caned_monkey said:
Thanks, but I've tried that. Both stock rom and CM13 work without a problem. The issue only seems to be with CM12.1.
Click to expand...
Click to collapse
ezantera said:
Can you tell what bothered you to go away from cm13 back to cm 12.1?
Click to expand...
Click to collapse
CM13 sucks!!! snapchat and instagram keeps on crashing, now I'm using resurrection remix 5.7.3, that sucks too!!
Hi guys, I had to give up using CM Roms since the phone reboots every time I try making a call or receive one, I understand there is some king of bug with the dialer framework included in the GAPPS package and that installing the Google Dialer from the play store should solve it but in my case i hasn't. This is what I've tried to no avail:
- Intalled Google DIaler from PlayStore/APK and set it default with all the permissions enabled.
- Installed Google Dialer apk as system app and set it default with all the permissions enabled.
- Installed the full GAPPS package.
- Removed the stock dialer and did all things above.
Hope someone can help me out here,
Thanks.
This happens when you have multiple phone dialer apps enabled. To use any other dialer than the included (when you flash Gapps Tiny or Micro which is recommended since the bigger packs replaces the CM app).
If you don't like the CM one, you should still flash a smaller Gapps and then disable CM dialer and download the one you want. If you already flashed a bigger Gapps, you should format system, cache and dalvik/arts partition and then reflash CM and then the smaller Gapps.
Should be enough to go settings, apps, click the gear weel (next to 3 dot menu), choose standard apps from this menu and determine your dailer as standard app..
This is a classical issue..
Sent from my OnePlus2 using XDA Labs
Sam Nakamura said:
Should be enough to go settings, apps, click the gear weel (next to 3 dot menu), choose standard apps from this menu and determine your dailer as standard app..
This is a classical issue..
Sent from my OnePlus2 using XDA Labs
Click to expand...
Click to collapse
Hi Sam, that's what I mean when I've set it as default.
pitrus- said:
This happens when you have multiple phone dialer apps enabled. To use any other dialer than the included (when you flash Gapps Tiny or Micro which is recommended since the bigger packs replaces the CM app).
If you don't like the CM one, you should still flash a smaller Gapps and then disable CM dialer and download the one you want. If you already flashed a bigger Gapps, you should format system, cache and dalvik/arts partition and then reflash CM and then the smaller Gapps.
Click to expand...
Click to collapse
Hey pitrus, this issue actually started while only having CM dialer installed since I mainly flash pico gapps.
Will try it again since its been like a month since I gave up on it. Let you know later.
J3RI3L said:
Hi Sam, that's what I mean when I've set it as default.
Click to expand...
Click to collapse
Well, okay.. Thanks for clarification :good:
Maybe you'd like to give Banks a shot, I think it's worth to try...
https://download.dirtyunicorns.com/gapps/Banks/
I never had this specific problem, only when it wasn't set to be default but a also only use one dailer.. The one that is default on cm based roms..
Sent from my OnePlus2 using XDA Labs
Guys I've had no luck, tried with a clean install of CM14 and still facing the same problem. Just today did a CM14.1 install and it is still present for me.
I guess that I could flash just CM and not gapps but I rely on Google services for a lot of stuff. Will keep trying though.
I'm having the exact same problem, random reboots during calls only, sometimes I don't even have time to answer. I'm running CM13 and only have one phone app, also set as default. When running stock and Cyanogen all was fine, this only started after flashing CM13.
Developemt for Cyanogen stopped that's why I switched, maybe coming from another rom is causing this? I did a full wipe when flashing and have updated to several nightlies and the problem remains. Maybe I'll try another rom and test it for a while.
Installed Dirty Unicorns a few days ago and the problem seemed to have been fixed, but yesterday it started acting out again. Is there a way to check if this problem is hardware related?
I'm now doing a factory reset and installing Oxigen hoping that'll fix this once and for all.
It's a problem related to Gapps
rtorresz said:
Installed Dirty Unicorns a few days ago and the problem seemed to have been fixed, but yesterday it started acting out again. Is there a way to check if this problem is hardware related?
I'm now doing a factory reset and installing Oxigen hoping that'll fix this once and for all.
Click to expand...
Click to collapse
It is not a hardware problem, I don't have this issue when running Oxygen OS, it only happens to me when running any AOSP based rom with Gapps installed.
Flash Oxygen from here http://downloads.oneplus.net/devices/oneplus-2/ and it will fix it, it's not the same as running CM though.
J3RI3L said:
It is not a hardware problem, I don't have this issue when running Oxygen OS, it only happens to me when running any AOSP based rom with Gapps installed.
Flash Oxygen from here http://downloads.oneplus.net/devices/oneplus-2/ and it will fix it, it's not the same as running CM though.
Click to expand...
Click to collapse
Sounds like you flashed the full version of Gapps instead of the recommended Nano or Micro which does not replace the dialer app with Googles own, try the smaller Gapps and you should be ok.
pitrus- said:
Sounds like you flashed the full version of Gapps instead of the recommended Nano or Micro which does not replace the dialer app with Googles own, try the smaller Gapps and you should be ok.
Click to expand...
Click to collapse
I've installed them all with the same result, last time I was using Pico Gapps with Seraph's CM14 and it happened eandomly, sometimes I could make and receive calls normally but a most of the time it would reboot as soon as the phone started ringing.
Currently I've tried a lot of solutions so I'm not really sure of what's wrong.
J3RI3L said:
It is not a hardware problem, I don't have this issue when running Oxygen OS, it only happens to me when running any AOSP based rom with Gapps installed.
Flash Oxygen from here http://downloads.oneplus.net/devices/oneplus-2/ and it will fix it, it's not the same as running CM though.
Click to expand...
Click to collapse
I flashed the latest OOS and now things are only a little bit better, instead of reboots I get dropped calls and a "No available network" message. This seems to happen only when I'm on a 3G or 4G network, if I change to a 2G network I can make calls without problems. This is driving me crazy, I've tried almost everything and I can't see what I'm missing.
rtorresz said:
I flashed the latest OOS and now things are only a little bit better, instead of reboots I get dropped calls and a "No available network" message. This seems to happen only when I'm on a 3G or 4G network, if I change to a 2G network I can make calls without problems. This is driving me crazy, I've tried almost everything and I can't see what I'm missing.
Click to expand...
Click to collapse
Its happening to me as well just as you describe it. It is very weird. In thinking of flashing the stock OOS 2.2.0 just to check whether it makes any diference.
Yesterday I restored my phone back to stock, but the problen remains.
This definitely has something to do with mobile data. If I disconnect mobile data I can make calls without any problem, when I'm connected to a wifi network too (I'm guessing because the phone has no need to use mobile data).
Some suggest that this might be related to VoLTE and operators not supporting it, but I can't find anyway to see if this is even exists or if its activated in OOS.
Later today I'll try Hydrogen and see what happens.
UPDATE: Flashing Hyrogen didn't solve the issue, calls keep dropping when mobile data is activated on LTE network.
UPDATE 2: Going back to OOS 2.2.1 didn't solve the problem either.
Kinda solved now
rtorresz said:
Yesterday I restored my phone back to stock, but the problen remains.
UPDATE: Flashing Hyrogen didn't solve the issue, calls keep dropping when mobile data is activated on LTE network.
UPDATE 2: Going back to OOS 2.2.1 didn't solve the problem either.
Click to expand...
Click to collapse
It seems I have solved my problem with the reboots and I think might help with your droped calls as well.
Firstly I flashed this OOS 3 firmware https://www.androidfilehost.com/?fid=24591020540821656, it comes with a hybrid TWRP, after that flashed the official CM14.1 and pico Open Gapps.
I think the firmware file did the trick or maybe it was the recovery since I haven't had a reboot in the past 2 days when receiving calls or making them.
Hope it helps
It's been a few days since I tried the last solution and so far my problem seems to be solved.
What worked for me was flashing the latest modem from H2OS 2.5 which also is supposed to enable VoLTE, but I can't confirm this since my carrier does not support VoLTE yet. To do this I first flashed CM 14.1 and then the modem, it worked fine since the first boot. Since my battery life wasn't the best in Nougat I went back to CM13 and the phone is still working fine.
Before some weeks ive been asking here what ROM I should use. Ive done this cause my power drains to fast.
So I switched back to OxygenOS3.0 and everything worked fine until today.
Today my phone got always authentification problems with my WiFi at Home.
So ive thought to fully unroot my device and go back on the first stock ROM.
But it fixed nothing and I also restart my router so thats not the fault.
Also the Fingerprint Sensor including the Touch Function doesnt work anymore ive also got this problem before a half year but fixed it very fast after installing CM13.
Now ive wanted to know if someone got the same problems or one of them and could help or give some advices the phone is only 1 year old and I didnt want to swap to another one until a year.
What I would do is flash some other roms and make sure that you're using the hybrid twrp
Or probably start over again after flashing stock ROM.
Before that try clearing cache and Dalvik which solves issues on most deodexed ROMs.
So i just got a new moto g4 plus XT1642 (UK amazon version) and so of course the first thing i had to do was install a custom rom, so i followed a guide here to unlock it and install TWRP which went fine until i flashed a new firmware, I dont know if i somehow installed the wrong one but now it wont go past the "checking connection" screen on setup without crashing (sometimes it doesnt even get past the welcome language screen) I have tried flashing the stock firmware but it just does the same thing no matter which one i try (XT1642_ATHENE_MPJ24.139-48_cid50_subsidy-DEFAULT_CFC.xml.zip is the right one i think?)
If anyone could help me get back to marshmellow it started with then i promise i wont mess around with it again :3
Thanks for any help you can give.
Edit: Okay so I finally just went to do the thing i started out to do which was to install the Resurrection Remix rom (http://forum.xda-developers.com/moto-g4-plus/development/rom-resurrection-remix-n-5-8-0-t3507275) so I just thought that maybe if i got it installed it might fix what problems i was having and yeah sure enough i followed what i was supposed to flash first which was (Moto_G4_Plus_XT1643_ATHENE_MPJ24.139-63_Stock_Img) btw and then flashed Resurrection Remix and it just started working again, everything seems fine but I'm worried I might have broken something with all my puttering around with its inside ya know?
But the main thing is phone calls work, texts work, it rooted itself magically, can install unsigned apks and such, wifi works and so does the fingerprint sensor which i heard people were having issues with. So should i just not look for problems and enjoy it maybe? I'm glad i got it sorted im some fashion at least
So I HAVE now noticed that some apps seem to hang/crash sometimes, epecially games, not sure if it has to do with my puttering around though Is there anything I can do to check that everything is working ok? any programs that scan for errors or something?
Happy its working don't get me wrong but no issues would be best ^^
I've got your same model and I use this to get back to stock: XT1621-XT1622-XT1642_ATHENE_MPJ24.139-23.4_cid50_subsidy-DEFAULT_CFC.xml
If you're running rr and everything works you don't need to do anything just stick with it.
gabriwinter said:
I've got your same model and I use this to get back to stock: XT1621-XT1622-XT1642_ATHENE_MPJ24.139-23.4_cid50_subsidy-DEFAULT_CFC.xml
If you're running rr and everything works you don't need to do anything just stick with it.
Click to expand...
Click to collapse
Hey, thanks for the input, I did use that when i was having issues but it still caused that crashing at the connection screen issue sso i dont know why it would work for you and not me, perhaps i needed to get it to a working state before i could downgrade again? I dont really want to try it out now and see, the crashing issue seems to be infrequent so its possible its a different issue (software conflicts or ram overusage maybe?). I'll keep using it and see what issues develop
I have an SM-N900V (Note 3, Verizon variant, hltevzw).
Detailed timeline:
- I flashed it back to firmware OB6 using Odin 3.09.
- I rooted it using ArabicToolApp.
- I used this tool to unlock the bootloader
- I installed a build of LineageOS 14.1 for hlte
- It didn't recognize the SIM so I did a dirty flash of this build of LineageOS 15.1 for hltetmo on top (hltetmo actually has different hardware than hlte, and the correct one for SM-N900V)
- Messed around with the APNs until it recognized and connected to Verizon's network. I DO have functioning SMS and LTE data, but I have not tested phone calls yet
- Messed around some with SuperSU in system- and systemless-mode. Bricked my device more times than I could count, then unbricked over and over using SuperSU's impeccable installer. Messed around with this quite a bit
- Also messed around with Xposed some. The OS is too unstable to run Xposed Installer correctly, so I uninstalled it
- Removed SuperSU, installed Magisk. Phone now passes SafetyNet
So, my phone now runs 8.1 and a Lineage build from 9 days ago. Cool. But, if I was satisfied I wouldn't be making this post. There are multiple instances of the same kind of "app freeze" - App screen freezes, sometimes it'll go completely black. Interactivity doesn't work, obviously, the app is completely frozen. Hold Back to kill doesn't work (Application Killed toast shows, but nothing happens). ANR (when it comes up) Close doesn't work. Home button works and brings me away from the app, but it's still there. Swipe away in Overview doesn't actually kill the app. Even in App Info, Force Stop doesn't work. The app is forever frozen. Tapping the icon from the launcher no longer does anything, it doesn't even bring up the app. The app is permanently crashed and inaccessible until a reboot.
Issues:
- Sometimes when booting the phone will not recognize the SIM until a reboot. As in, "No SIM" message and everything
- Sometimes it will get stuck at boot, I have foxy-boot installed, so I can see the logs. I don't remember what it was all about, if it comes up again I'll update the post
- Google Chrome sometimes crashes when trying to download a file. I've gotten my phone to self-host before, but this issue always seems to come back, and when it does Google Chrome ALWAYS crashes when trying to download a file. App Freeze
- Netflix installs and logs in but freezes at the "can't connect to service (-9)" message. App Freeze
- Certain apps like NativeScript Playground get stuck at the splash screen. App Freeze
- Xposed Installer did this when opening the Settings, whether Xposed was installed or not. App Freeze
- F-Droid also sometimes crashes, although it's somewhat arbitrary, I can't reproduce it reliably. App Freeze
I have tried reflashing the ROM, flashing Xposed uninstaller, reinstalling Magisk, none of it seems to work. I have TWRP 3.3.0 so I can do pretty much anything that doesn't involve the SD card (the SD card is probably broken in hardware, it's so read-only that Android and TWRP both can't write to it at all, but they can both read the same half-broken filesystem).
I fear that this OS is just too unstable for the phone and there's nothing I can do. I sincerely hope this is not the case.
Try other ROMs or perform a clean installation.
Make sure you are on PL1 bootloader/modem.
Currently using Resurrection Remix v5.8.5 Nougat because it was the last Android version for this device with working Bluetooth calls but if you don't use that feature you could use their Pie version as well.
RR ROMs are solid and work extremely well.
Do a clean installation via TWRP if you go this route.
terminator911 said:
Try other ROMs or perform a clean installation.
Make sure you are on PL1 bootloader/modem.
Currently using Resurrection Remix v5.8.5 Nougat because it was the last Android version for this device with working Bluetooth calls but if you don't use that feature you could use their Pie version as well.
RR ROMs are solid and work extremely well.
Do a clean installation via TWRP if you go this route.
Click to expand...
Click to collapse
I did a clean installation of RR 6.0.0 (Android 8.1) and it works a lot better than LineageOS did, with even more configuration options. I really really hate Pie and its gesture-based gimmicks (Screw you Google for copying more of Apple's bad design decisions), so I assumed Oreo would be more stable, but the ROM I installed still has crashing apps. Google Chrome still won't download most things (I've gotten it to download before), trying to change the accent color crashes the 'LineageOS Settings' app, and F-Droid is seriously messed up, but most other things are stable, including the Verizon network which required no pesky APN setup.
I'm on the OB6 bootloader/modem, is that a problem? I doubt that would be an issue, but I can always back up and reflash via Odin. The cool thing is that I installed a patch to TWRP which backs up /data/media along with everything else, after installing the custom ROM. So, really, I can do anything and be perfectly fine. There's, AFAIK, no way to ruin the phone unless something exploits the eMMC brick bug.
If there's another ROM you'd recommend me install, I'd be happy to try it out. I would really like to have a stable OS on here, where Chrome will work and download files. I'd also love Camera2 API since the phone has the chip for it (Snapdragon 800), but none of the ROMs I have support it and there's been no discussion online other than some years-old threads with no answers. I know there have been some articles online listing Note 3 as a phone that'd support Camera2 API with a software update. Would updating the bootloader/modem do anything on that front?
I would upgrade to PL1 bootloader/modem for your device. This is what I have and have had 0 issues. I'd recommend you trying the Samsung Internet browser over Google Chrome; it's much better in my opinion.
You can find the modem here:
https://androidfilehost.com/?w=files&flid=160694
As far as ROMs are concerned you can either try the Nougat version of RR which is what I am currently using as my daily driver with no issues at all including Bluetooth calls:
[ROM][HLTE\TMO\CHN][OFFICIAL]*** Resurrection Remix N 5.8.5 ***[13.03.2018]
https://forum.xda-developers.com/ga...-resurrection-remix-n-v5-8-3-vanilla-t3615227
See here to check whether or not your phone has the Camera2 API capabilities; if not use OpenCamera.
https://www.androidexplained.com/camera2-api-support/
terminator911 said:
I would upgrade to PL1 bootloader/modem for your device. This is what I have and have had 0 issues. I'd recommend you trying the Samsung Internet browser over Google Chrome; it's much better in my opinion.
You can find the modem here:
https://androidfilehost.com/?w=files&flid=160694
As far as ROMs are concerned you can either try the Nougat version of RR which is what I am currently using as my daily driver with no issues at all including Bluetooth calls:
[ROM][HLTE\TMO\CHN][OFFICIAL]*** Resurrection Remix N 5.8.5 ***[13.03.2018]
https://forum.xda-developers.com/ga...-resurrection-remix-n-v5-8-3-vanilla-t3615227
See here to check whether or not your phone has the Camera2 API capabilities; if not use OpenCamera.
https://www.androidexplained.com/camera2-api-support/
Click to expand...
Click to collapse
Excuse me but custom ROMs don't have "the Samsung Internet browser". Additionally the modem shouldn't cause app crashes (if it does, correct me please).
I might try the Nougat ROM. Bluetooth calls don't matter to me, but stability does. I just kinda really like Oreo and all its customization options but it may be too new for this old phone from 2013. It still works as a phone though, Messages and phone calls work fine, so I may just deal with it.
I use Open Camera, and I've tried multiple Camera2 API enablers. The phone has a Qualcomm Snapdragon 800 and the necessary links (in hardware, between the camera/other things) to support Camera2, but nobody seems to have tried it. Probably because the Verizon Note 3 is really locked down, and can only be rooted on a special version of the samsung ROM, and can only be bootloader-unlocked via the eMMC brick bug... There are Magisk modules for Camera2 on Exynos-based devices, but none for the Verizon Note 3 AFAIK.
I just found out that RR 7 officially supports `hltetmo`, but RR 6 doesn't. That's kinda sad, I hate Pie, but I might try it...
I've had the SEPL stuff before, that's the one that can't be rooted. I suppose I didn't consider upgrading again after I unlocked my bootloader. I'll try SEPL1 firmware again, but with a custom ROM...
You can install the Samsung browser from the Play Store. Again, highly recommended.
As far as SEPL1 just update the modem to it; that shouldn't cause any issues but it will ensure your SIM is recognized and data works with the latest ROMs. That is one requirement you will see listed on all of these ROMs.
Not sure which one you are trying to install but here are all the Resurrection Remix versions:
Nougat:
https://forum.xda-developers.com/ga...-resurrection-remix-n-v5-8-3-vanilla-t3615227
Oreo:
https://forum.xda-developers.com/galaxy-note-3/development/rom-resurrection-remix-n-6-0-0-t3748689
Pie:
https://forum.xda-developers.com/galaxy-note-3/development/rom-resurrectionremix-v7-0-0-t3894244
If you don't care about Bluetooth audio during calls then you can safely use Oreo and Pie options.
terminator911 said:
You can install the Samsung browser from the Play Store. Again, highly recommended.
As far as SEPL1 just update the modem to it; that shouldn't cause any issues but it will ensure your SIM is recognized and data works with the latest ROMs. That is one requirement you will see listed on all of these ROMs.
Not sure which one you are trying to install but here are all the Resurrection Remix versions:
Nougat:
https://forum.xda-developers.com/ga...-resurrection-remix-n-v5-8-3-vanilla-t3615227
Oreo:
https://forum.xda-developers.com/galaxy-note-3/development/rom-resurrection-remix-n-6-0-0-t3748689
Pie:
https://forum.xda-developers.com/galaxy-note-3/development/rom-resurrectionremix-v7-0-0-t3894244
If you don't care about Bluetooth audio during calls then you can safely use Oreo and Pie options.
Click to expand...
Click to collapse
Yeah but, data and calling worked fine on the LineageOS and RR roms, so there's no reason to update the modem.
Besides, I flashed SEPL1 6 times using Odin (multiple times by flashing, rebooting directly into download mode and flashing it once more) and it doesn't want to update. Still on OB6. On the latest (official Pie) RR rom, data worked on first boot but doesn't work anymore (I'm going to mess around with the data settings until it works), but I have no reason to believe that my phone needs a modem update to function.
I did, many times, make calls to various phone numbers and they all worked flawlessly. SEPL1 is therefore not needed if that's all it does.
And I do know about all the Resurrection Remix versions: One is Nougat from their archive, one is the Oreo version I had installed just yesterday before flashing Pie, and the other one is Pie which is now officially supported.
I am currently working on getting RR7 to work, it's only crashed a few times, and I don't even remember what those times were (I think it was using the Back button in Overview/Recents at the same time as the Overview button?)
When updating modem via Odin you have to pull the battery and don't let it reboot the phone for it to stick (disable that option in Odin) and flash it again and then reboot. If you look at the ROM threads for anything newer than Android v5 they all recommend updating to the latest bootloader & modem for your device which in this case is PL1. This can be to prevent crashes/no signal /no SIM, etc...
Are you dirty flashing these ROMs? I have never experienced any crashes with any of the RRs on my phone but I always do a clean install and make sure to also delete the "Android" folder on my SD Card via TWRP after doing the "Advanced" wipe and deleting everything listed there except for the External SD Card.
terminator911 said:
When updating modem via Odin you have to pull the battery and don't let it reboot the phone for it to stick (disable that option in Odin) and flash it again and then reboot. If you look at the ROM threads for anything newer than Android v5 they all recommend updating to the latest bootloader & modem for your device which in this case is PL1. This can be to prevent crashes/no signal /no SIM, etc...
Are you dirty flashing these ROMs? I have never experienced any crashes with any of the RRs on my phone but I always do a clean install and make sure to also delete the "Android" folder on my SD Card via TWRP after doing the "Advanced" wipe and deleting everything listed there except for the External SD Card.
Click to expand...
Click to collapse
"pull the battery and don't let it reboot the phone for it to stick (disable that option in Odin) and flash it again and then reboot"
So...
- Reboot phone into Download mode
- Pull battery while in Download mode
- Flash thingy
- Reboot back into Download mode
- Flash thingy again
? That will be very difficult to do with my dodgy charging cable that doesn't like being repositioned...
I do that without pulling the battery, but I could try it with.
I'm downloading the full SEPL stock image to flash. Once that's done, I'll flash it, reflash TWRP, restore my backup, and see if the baseband has updated.
And no, never dirty flashed the ROM. Always completely wiped data, system, cache and everything. I always backup first. I currently have 3 backups: Lineage OS (before installing RR), RR6 (Oreo), and RR7 (right now before that stock image I'm going to flash).
My external SD card is nonfunctional and read-only with some trash files from the previous phone.
I flashed the stock SEPL ROM. Baseband still didn't change. Restored from backup, SIM now works. Network is detected, SMS and data both work reliably on all reboots.
I will mention that I did brick my phone by using Odin to erase the eMMC, but I fixed that from TWRP, and now everything works flawlessly. There are still some app crashes, but most things are very stable. Camera2 API still nonexistent, which is sad because I got used to it on my old phone, but I shouldn't hope for it.