Sim card not working on Poco M2 in Project Elixer custom rom - Redmi 9 / Poco M2 Questions & Answers

I recently decided to install custom ROM on my old POCO M2 because of performance issues, after a long and hard struggle, I somehow managed to install Project Elixer on the phone
however, when I tried to log in to some of my investing apps, which require OTPs, I am not receiving OTPs, (to be accurate not any SMS). then I tried to make a call and even calls are not working.
then to test it I tried from another phone to call the POCO M2 custom recovery phone. it is telling me that the number is switched off.
Things I tried: - go through all of the xda forums to find a solution but not good,
tried different versions of ROM and still same issue
(Note: I am totally a beginner, so an easy explanation would be appreciated thanks)

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MI5 No service / emergency calls only after MIUI 8 update from Android 6-unlockedBL

hi, my xiaomi mi5 32gb/3gb ram had android 6(no ideea about version) and unlocked bootloader, bought from china with european version of the rom, gapps installed.
everything worked perfectly, no drops in signal, nothing to complain.
i updated to MIUI 8 Android 7 official and after that the signal dissapeared, the only moment i had signal was when i put a new simcard in the phone, and only for 2 minutes.
Then i flashed with XiaoMiFlash : gemini_global_images_V8.2.2.0.NAAMIEB_20170407.0000.00_7.0_global_95e92d22eb
-- the problem stays: no service/emergency calls only.
i have good 3G 3-4bars/4G sometimes, when it comes to signal in this location.
nothing helped.
flashing xiaomi-miui-hellas-7.0_gemini_V8_XTRV_7.4.20 with TWRP Recovery also didn't help my problem
Now i am with a phone with no signal, could you please give me some help to solve this?
i've seen a lot of people in this situation on forums, so a solution would be very good.
Perhaps the settings from the *#*#4636#*#* Hidden MENU, this way i would do it the way it is on a working phone.
Thanks, greetings. Dan

How to return to stock?

Hello guys! After experiencing all custom ROMS including Xiaomi.EU, figured out that every single one has some small inconvenience for me and planning to return to stock, eventually using only Magisk and potentially a custom Kernel.
Managed to install every single version of Global Developer ROM, everything works well except the FaceUnlock that was gone, (the phone remained stucked in China region) and I am not able to access the fingerprint section, after few tries it brings me an error message.
Tried also using MIFlash , but the Fastboot ROM writting took 3 sec to write and stopped as successfully, then nothing but bootlooping.
Currently is the phone is functional, but as mentioned before not able to setup new fingerprints (using cache and data from old recovery and those work) neither Face Unlock.
Tried to Google any kind of solution, but unfortunately nothing worked.
Any suggestion is appreciated.
I see that nobody is interested to support, so I continuously researched and figured out that doing a full wipe and following these steps from this post will solve my problem:
https://forum.xda-developers.com/mi-8/help/chinese-mi8-to-global-instructions-t3839665
From I don't know which reason I was blocked on China region without the possibility to changing it.

Honor 9 lite camera & flashlight problems

Hi,
I'm hoping someone out there can maybe help me with this please?
I have an Honor 9 Lite (LLD-L31C432) & recently the camera & flashlight stopped working. I've tried a number of other camera apps (the P20 ported camera, various google cams etc) but none work - all either open to a black screen & shut down immediately or else just say the app has crashed, etc.
The phone is bootloader unlocked and was on stock rom (LLD-GRP2-OVS-9.1.0.121). A few months ago I switched to Openkirin's Resurrection Remix OS 7.0.1 Beta 1 ROM & all worked ok (I had the stock camera, a Google Cam version and the P20 camera all working), but due to bluetooth problems I tried the Openkirin AOSP 10 Preview 1 ROM. Had a few problems with this one so tried to return to the stock ROM and had a lot of trouble getting it working again (bootloops, etc).
Eventually got the stock firmware back on but then noticed that the camera & flash no longer worked. Since then I've returned to both the Resurrection Remix ROM and the AOSP 10 Preview 1 (& Preview 2) ROMs but the problem still remains. Is it possible that I've broken the camera when fastboot flashing or using TWRP? I 'went around in circles' so much whilst trying to get back to stock that I can't remember ever step I tried, but it would seem a bit of a coincidence if the hardware failed just around the time of me having issues returning to stock ROM.
Also, If I was to relock the bootloader is it possible to tell that it has been unlocked in the past? It was purchased May 2018 so would still be in the 2yr warranty period but I wondered if Huawei could tell it had been unlocked in the past (I also read somewhere that the warranty is invalidated just by registering to get an unlock code, even if you never actually used it? - not sure how true this is!)
Cheers!
Andy

[LOOKING] A rom to install in the huawei p10 lite having unlocked the bootload

For devices WAS LX1A 8.0.0.365(C113) single sim emui 8
for daily use, possibly it has no bugs.
Alternative.
to know what the known bugs are and how to fix them.
I repeat the phone I want to use it daily!.
I forgot and with the twrp, with the possibility of making backups of the stock rom
in an emergency if you want to go back
solved you can close even if nobody answered me

[Q] Mic Problem in Android 10

First of all, I'm running MSM Xtended v9 dirty flashed from v5 which was clean flashed after Havoc OS Pie rom some time ago.
Okay so here is the problem as specific as possible.
At first, after doing an online call using headphones (Either via Whatsapp, Messanger, Discord) the mic would suddenly stop working, no voice input would be detected whether its Voice Notes, regular calls, google assistant or any other app that detects voice input. This was back on MSM Xtended v5, which was Clean flashed. The problem then persisted and turned into the mic doing the same thing even without the headphones, then onto doing it again for regular calls too, not just the online ones (so that means I have to reboot after every call). I thought it was a problem with my android version so I upgraded to v9, dirty flashed. I wanted to opt for a clean flash but I had some data on apps that couldn't be backed up at the time. Problem still remained and now the mic suddenly stops working after reboot for no reason without making any calls.
Obviously, as every developer recommends I thought to clean flash the rom again, and prepared myself to backup everything and lose that which I can't back up. Then while looking for a different rom, I noticed multiple people having the same problem for different ROMs, though all were Android 10 ROMs.
So I wanted to ask, is there any solution to this problem? It makes the device basically unusable without any mic, and I do understand that not everyone has the same problem but when I saw others having it I realized it might not be specific to my unit.
Anyone trying other Android 10 ROMs without this problem? Should I downgrade to Pie? Any help would be appreciated, please.
If you recommend downgrading please tell me how, as I seem to have forgotten and can't find the method online (it may be there but I haven't seen, I apologize if that's the case).
Thank you in advance.
Known issue on Android 10, most probably it is Gapps issue, so try Weeb Gapps if you don't need 'Hey Google' thing. Downgrading is not that hard on OnePlus 3T, just download OOS 9.0.6, backup your data to PC or OTG, wipe all and format data and flash OOS, that's it.

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