Weird. I did:
Unlock bootloader --> twrp & root --> backup persist and modem --> MSM Tmobile 10.5.7 --> unlock bootloader again --> recovery to 10.12 --> upgrade to Android 11. Not seeing any dual sim support at all with two sims inserted. Did I happen to miss something along the way?
Sorry for taking a while to get back. I stuck my T-Mobile SIM in the bottom side slot, SIM 2. It detects the SIM fine, but shows no service. So there is absolutely contacts for the 2nd slot.Title says it all. Look I have 2 phones one with dual sim one without. There are no sim connections for a 2nd sim card on the T-mobile OnePlus 8. Shine a light in there you'll see the top doesn't look like the bottom...
I tried again with a live sim. The internet settings show the right carrier but I can't get a connection to the internet or make a phone call. Checked the APN. The slot is there but as far as I can tell, you can't use it. It says no active connection. So still, I say 1 SIM on a TMO phone.
hi, i have the T-Mobile 10.5.10,im waitting the unlock code for the bootloader, do i need to downgrade to 10.5.7??? i dont understand what is the point. thanksFinally got the global working
1. MSM Back to T-Mobile 10.5.7
2. Upgrade to T-Mobile 10.5.10
3. Unlock bootloader
4. Flash fastboot 10.5.11
5. Restore persist.img for fingerprint
Need to do steps # 2, 5 otherwise no signal and no finger print
The issue is that your bootloader is still unlocked so you're failing safetynet (which apps like netflix and banking apps check). Flash a rooted boot.img (to install magisk), open magisk manager app, and enable Magisk Hide and you'll be all set.I did everything correct as far I know. Backed up persist, backed up the modem, flash_all to android 10 and OTA to android 11... Only issues I have so far is that Google Pay and Netflix don't work on the phone anymore. Is there a work around for that? I'm not rooted but the bootloader is still unlocked. I would hate to lock it again as I know that's not a good thing to do in most cases. I was hoping the OTA would do that but it didn't