Develop Bugs

help me to unlock my O2XdaIIS!!

i use O2XdaIIs but if i insert my sim card in to my phone the phone display input code to unlock.
tell me how can i unlock my phone
I live in viet nam

Check with your SIM card provider ask what is you SIM card unlock code..

Can't select which Sim card to use

I'm not sure how long this has been, I think since the last update, but I cant select which sim i want to use to make a call or send a text with.
I only noticed this when I went to Belgium (I have a UK and Belgian Sim card in my phone). When I make a call the phone automatically uses my first Sim card (UK) and doesnt give me the option to select my second sim card (BE) anymore.
The same happens when texting.
Is this because of Truecaller? Is there something obvious I am missing?
Thanks!

Hi,
same problem here. I don't know if it's related to the latest update. I'm using dual sim since 1-2 weeks...
Temporary solution:
1. turn phone off
2. remove sim card 2
3. turn phone on
4. take at look at the dual sim card menu, if the sim card in slot 1 is recognized correctly (system settings -> sim cards)
5. if sim card in slot 1 is not recognized correlty reboot the phone
6. turn phone off
7. insert sim card 2
8. turn phone on and now you should be able to select sim your sim card for calling, sending sms and internet connection
This lasts for me till I change the settings again und leave the menu...

Question about unlocking the device SIM/waiting period

I've purchased a Xiaomi Redmi Note 8 and I'm looking at the LinageOS install guide.
I realize that I'll need a SIM card and the Mi Unlock app. I don't have a dedicated SIM card for the device, but I could use the SIM card of another device.
What I haven't found any information on - does the SIM card have to remain in the device during the waiting period?

According to Mi they say to "Use your device actively" while waiting for unlock. That would leave me to believe they use your sim card to verify you own the device you want to unlock, so I would recommend keeping it in. But, maybe someone else knows for sure?

You only need the sim card with unlocking, before and after 168 hours.
You can use every sim card, but it must have data acces.
After activating the 168 hours you can take out the sim and insert again a sim if you unlock.
Xiaomi sends an confirmation by sms to the phonenumber of the account.
This can be your original sim in another phone too.
The confirmation number you can insert in your new phone.
Using your phone isn't neccesary, but you must nog log off or log on again your account

Thank you for the feedback!

SIM Card not detecting.

Hi all,
My phone is not detecting Airtel SIM Card but that same SIM Card is working in other phones. I did not lost my IMEIs. Please help me.

c4_ez said:
Hi all,
My phone is not detecting Airtel SIM Card but that same SIM Card is working in other phones. I did not lost my IMEIs. Please help me.
Click to expand...
Click to collapse
Check if the device detects other SIM card, to discard that the SIM trail is working.

SubwayChamp said:
Check if the device detects other SIM card, to discard that the SIM trail is working.
Click to expand...
Click to collapse
I checked other SIM and it is working. I guess I have issue with my SIM then.

But after flashing ROM, I am getting this:

I hope you didn't format all, otherwise, you'll lose your calibration data, IMEI and more. If the device is detecting a different SIM, then your SIM is the issue, you can change the SIM card from your provider, the surface might be scratched.

flash nvram and nvdata file

Question SIM Card Activation Issue

Hi everyone,
I'm having issues with a physical SIM whereby my phone (Xiaomi 13 Pro) doesn't want to activate the SIM line nor can I input the PIN to unlock the SIM card. Essentially the phone is happy with the SIM not functioning at all and there's no way to change the status. I want to mention that it did prompt me the very first time I inserted the SIM for initial setup but hasn't been since then. Rebooting, turning airplane mode on/off doesn't seem to prompt the unlock/activate the SIM. I have to use that specific SIM on another phone now. Any clue on how to solve this or force the phone to unlock and activate the card?
Thanks!

Maybe try deleting the pin code with the other phone and/or using the other location.