Hi All,
My Oneplus is currently on CM13.0 (6.0.1). Whenever I restart my phone it does not recognise the SIM. The only way for the SIM to be recognised again is to restart the phone around 6-10 times. This happened back when I was on CM12 so I flashed CM13 hoping that would resolve the issue. It did not.
Any assistance would be appreciated.
EDIT: TWRP version is 2.8.0.1
EDIT2: The issue was the SIM card. Replaced it and it's working fine now.
Amz91 said:
Hi All,
My Oneplus is currently on CM13.0 (6.0.1). Whenever I restart my phone it does not recognise the SIM. The only way for the SIM to be recognised again is to restart the phone around 6-10 times. This happened back when I was on CM12 so I flashed CM13 hoping that would resolve the issue. It did not.
Any assistance would be appreciated.
EDIT: TWRP version is 2.8.0.1
Click to expand...
Click to collapse
Try to check if your baseband is still showing something, instead of unknown, and check for IMEI too.
If baseband is unknown and IMIE is showing nothing, you have to flash Oxygen OS to get back your modem.
I had exactly the same problem.
y0ngc6 said:
Try to check if your baseband is still showing something, instead of unknown, and check for IMEI too.
If baseband is unknown and IMIE is showing nothing, you have to flash Oxygen OS to get back your modem.
I had exactly the same problem.
Click to expand...
Click to collapse
I tried oxygen OS but I got the same issue. Which version did you try flashing?
Amz91 said:
I tried oxygen OS but I got the same issue. Which version did you try flashing?
Click to expand...
Click to collapse
The latest, I have 2 bacons, the China version seems to fine, but the US version had missing baseband(sim card cant be detected) and IMEI after clean flashed to Cyanogen OS 13.1.
I'm not sure if mine is same as your case, i basically factory reset COS13 via latest twrp, side loaded the Oxygen OS and the baseband was back.
Or may be you should try to check or clean your sim card?:good:
Brother are you trying with jio sim in india? If yes then forget about it and if no then do a fresh installation of cm 11 and then upgrade to next cm updates by OTA. If that doesnt helps then it might be problem with the network receptor. Cant help you with that.
Sim issue was common in OPO when it was launced so u can find some solution video on yoitube as well
I flashed surnia rom by mistake and after that its not detecting my sim card. I tried flashing many roms, and yet no luck! IMEI number is proper, baseband version is proper. And i'm unable to turn on radio with the network app.! What to do?
Now i'm running on lineage os 14.1 [OTUS].
When i insert my simcard in slot1, put my phone in aeroplane mode and reboot. It shows simcard in slot 2 and no service.
Suraj57 said:
I flashed surnia rom by mistake and after that its not detecting my sim card. I tried flashing many roms, and yet no luck! IMEI number is proper, baseband version is proper. And i'm unable to turn on radio with the network app.! What to do?
Now i'm running on lineage os 14.1 [OTUS].
When i insert my simcard in slot1, put my phone in aeroplane mode and reboot. It shows simcard in slot 2 and no service.
Click to expand...
Click to collapse
Restore old firmware
Hi guys so the problem that I'm having is that when my Sprint sim card is inserted and I reboot my phone I don't any kind of service. The signal bar keeps flashing as of it was trying to connect but can't, without the sim I only have 3g service and to be frank idk how I even do that because before it wouldn't get any signal without the sim. The problem started after I installed Cosmic os klte build when I was suppose to install on kltespr build. I have installed resurrection remix and lineage kltespr build and all do the same thing only 3g without sim and no signal with sim! If anyone can help I'll appreciate it!
kltespr1314 said:
Hi guys so the problem that I'm having is that when my Sprint sim card is inserted and I reboot my phone I don't any kind of service. The signal bar keeps flashing as of it was trying to connect but can't, without the sim I only have 3g service and to be frank idk how I even do that because before it wouldn't get any signal without the sim. The problem started after I installed Cosmic os klte build when I was suppose to install on kltespr build. I have installed resurrection remix and lineage kltespr build and all do the same thing only 3g without sim and no signal with sim! If anyone can help I'll appreciate it!
Click to expand...
Click to collapse
I'm guessing you've already tried using Odin and flashing the stock tar file? Because when all else fails try that first...
kltespr1314 said:
Hi guys so the problem that I'm having is that when my Sprint sim card is inserted and I reboot my phone I don't any kind of service. The signal bar keeps flashing as of it was trying to connect but can't, without the sim I only have 3g service and to be frank idk how I even do that because before it wouldn't get any signal without the sim. The problem started after I installed Cosmic os klte build when I was suppose to install on kltespr build. I have installed resurrection remix and lineage kltespr build and all do the same thing only 3g without sim and no signal with sim! If anyone can help I'll appreciate it!
Click to expand...
Click to collapse
when you installed the ROM for the other phone, you likely also installed its radios which are interfering with the SIM. Odin flash the OK4 tarball on it, and youll likely be just fine
also, youre getting 3g because its all cdma, the sim will only give you LTE with sprint. They use your IMEI to identify it on the 3g network
also, did you get this fixed?
Hello all,
I purchased a Galaxy A52 4G dual-sim model, and am (mostly) very happy with it. I bought it specifically for two reasons: because of the dual sim support, and the fact that there was a LineageOS rom available here at XDA. So, I promptly unlocked the bootloader and flashed TWRP and LineageOS 19.0 (big thanks to Simon1511 for his work on that!).
Everything is working great except for the second sim slot, which ranges from almost-functional (everything except voice calls work, no audio at all in call) to completely non-functional (cannot even connect to the tower), depending on which of my SIMs I put in it. The other slot is fully functional with either sim.
I noticed under Settings->About Phone that the phone reports it's model as SM-A525F, but the baseband version shows as A525MUBU4BVC2. According to the info at sammobile.com, that version is intended for an SM-525M, which this phone says it is not. I have no idea how that happened, and I wish I had done some testing with the phone when I first got it, before blowing away the stock rom. Ah well.
Hoping that my sim slot problems are the result of the wrong baseband firmware being installed, I downloaded the latest version for the SM-525F from sammobile (A525FXXS4BVD1), extracted the modem.bin and NON-HLOS.bin files, and tried flashing them to the device using Heimdall v2.0.1 (Linux user here, so Odin isn't an option and the 'official' Heimdall v1.4.2 threw various libUSB errors. v2.0.1 is an unofficial fork that worked, used it to load TWRP without problems.).
It uploaded, but the download mode screen displayed SECURE CHECK FAILED, and after rebooting the version listed under settings had not changed. Everything still works as well as it ever did, which is nice. Knowing that a mistake in this area could potentially brick the phone, I decided to create an XDA account and post here looking for some advice before making further attempts.
As I was putting this post together, it occurred to me to check the invoice. I bought it through Amazon, and it was listed as an A525M on the invoice, for what that's worth. And, the fine print on the back of the phone itself reads SM-A525M/DS. So perhaps it is an SM-A525M and the baseband version is correct, with the settings showing model: SM-A525F being the error. That would explain why the baseband firmware wouldn't flash, it knows it's not the correct bin file for the phone.
I suppose there is also the possibility that it's simply a hardware problem, and the second sim slot has something physically wrong with it.
Can anyone point me in the right direction?
Hi,
I'm certainly in no capacity to guide you, but I just brought the phone myself and have been lurking this forum to harvest a few guidelines. Regarding LineageOS, I saw there might be some problem with Dual Sim there :
[ROM][12.1][ENCRYPTION][EOL] LineageOS 19.1 for A52 4G and A72
LineageOS is a free, community built, aftermarket firmware distribution of Android 12.1/12L, which is designed to increase performance and reliability over stock Android for your device. LineageOS is based on the Android Open Source Project with...
forum.xda-developers.com
It could be you have the same issue as the guy and this is not related to your baseband firmware?
If I may ask, as a fellow Linux user myself, would you mind describing the guidelines to use download a working version of Heimdall and use it to flash e.g. TWRP on the phone? That would be much appreciated.
Flash the proper firmware for your device using odin. Then try installing lineage again.
@Flyos: I haven't seen or used any options for turning off SIM slots, so hopefully that isn't part of the problem. The source for the copy of Heimdall I used is available at https://git.sr.ht/~grimler/Heimdall/ . You'll have to compile it yourself.
@Ryzen5950XT: Thanks, but that's not terribly useful advice, given that part of the problem is that the device is giving me conflicting information regarding it's model number.
I'm still going to take it, though. I'll assume it actually is an SM-A525M and go from there. And I'll use Heimdall. It's served me well with every other samsung phone I've used, and Odin simply isn't an option without Windows, which I don't have and am not interested in getting.
ralanar said:
@Flyos: I haven't seen or used any options for turning off SIM slots, so hopefully that isn't part of the problem. The source for the copy of Heimdall I used is available at https://git.sr.ht/~grimler/Heimdall/ . You'll have to compile it yourself.
@Ryzen5950XT: Thanks, but that's not terribly useful advice, given that part of the problem is that the device is giving me conflicting information regarding it's model number.
I'm still going to take it, though. I'll assume it actually is an SM-A525M and go from there. And I'll use Heimdall. It's served me well with every other samsung phone I've used, and Odin simply isn't an option without Windows, which I don't have and am not interested in getting.
Click to expand...
Click to collapse
There should be a sticker on the box the phone came in that tells you which variant it is.
...yes, and I touched on that, in the original post. The phone is physically stamped SM-A525M/DS, the Settings->About Phone page says SM-A525F, and the baseband version indicates SM-A525M again. Conflicting information.
Which is why, two-to-one, I'm assuming SM-A525M is correct, and will follow your advice and reflash the stock firmware, downloaded from sammobile.com.
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Ok, did a bit more testing, pretty sure this is a problem with the LineageOS rom.
Re-flashed the latest stock firmware for an SM-A525M from sammobile.com (used the brazil firmware), and Settings->About Phone now reports the model as SM-A525M/DS, which is correct. Baseband firmware version did not change, nor did I expect it to.
Tested each sim individually in each slot, then both slots together, then swapped sims between slots. Audio worked in every voice call, regardless of which sim was used for the call or which sim was where.
Then I re-flashed LineageOS as per the instructions.
Starting with the VBMeta_Disabled image, then a recovery image (Used the LineageOS recovery from that thread this time, used TWRP from the TWRP website on the previous attempt), then LineageOS, MindTheGApps, and Magisk.
After re-booting Lineage, the phone once again reports it's model as SM-A525F under Settings->About Phone, and neither sim has working in-call audio when in slot 2, regardless of whether the other slot has a sim in it.
I'll add a post to the thread linked above to report the problem, and crosslink to this thread for reference.
For the moment, I've put the sim cards back in the phones I pulled them from and shelved this A52. I'll try again when a new release is available, and see what happens.
Thank you Flyos and Ryzen5950 for your assistance!
ralanar said:
Hello all,
I purchased a Galaxy A52 4G dual-sim model, and am (mostly) very happy with it. I bought it specifically for two reasons: because of the dual sim support, and the fact that there was a LineageOS rom available here at XDA. So, I promptly unlocked the bootloader and flashed TWRP and LineageOS 19.0 (big thanks to Simon1511 for his work on that!).
Everything is working great except for the second sim slot, which ranges from almost-functional (everything except voice calls work, no audio at all in call) to completely non-functional (cannot even connect to the tower), depending on which of my SIMs I put in it. The other slot is fully functional with either sim.
I noticed under Settings->About Phone that the phone reports it's model as SM-A525F, but the baseband version shows as A525MUBU4BVC2. According to the info at sammobile.com, that version is intended for an SM-525M, which this phone says it is not. I have no idea how that happened, and I wish I had done some testing with the phone when I first got it, before blowing away the stock rom. Ah well.
Hoping that my sim slot problems are the result of the wrong baseband firmware being installed, I downloaded the latest version for the SM-525F from sammobile (A525FXXS4BVD1), extracted the modem.bin and NON-HLOS.bin files, and tried flashing them to the device using Heimdall v2.0.1 (Linux user here, so Odin isn't an option and the 'official' Heimdall v1.4.2 threw various libUSB errors. v2.0.1 is an unofficial fork that worked, used it to load TWRP without problems.).
It uploaded, but the download mode screen displayed SECURE CHECK FAILED, and after rebooting the version listed under settings had not changed. Everything still works as well as it ever did, which is nice. Knowing that a mistake in this area could potentially brick the phone, I decided to create an XDA account and post here looking for some advice before making further attempts.
As I was putting this post together, it occurred to me to check the invoice. I bought it through Amazon, and it was listed as an A525M on the invoice, for what that's worth. And, the fine print on the back of the phone itself reads SM-A525M/DS. So perhaps it is an SM-A525M and the baseband version is correct, with the settings showing model: SM-A525F being the error. That would explain why the baseband firmware wouldn't flash, it knows it's not the correct bin file for the phone.
I suppose there is also the possibility that it's simply a hardware problem, and the second sim slot has something physically wrong with it.
Can anyone point me in the right direction?
Click to expand...
Click to collapse
Do you happen to know the exact build BEFORE you flashed a custom firmware?
[ROM][12.1][ENCRYPTION][EOL] LineageOS 19.1 for A52 4G and A72
LineageOS is a free, community built, aftermarket firmware distribution of Android 12.1/12L, which is designed to increase performance and reliability over stock Android for your device. LineageOS is based on the Android Open Source Project with...
forum.xda-developers.com
Bugs
Fingerprint sensor on A72
No audio in calls with second SIM card