Develop Bugs

The differences between Android 9 and Android 10

I recently brought Rmn8p with miui 11.0.6 (global) , wait to unlock bootloader. After that flash preloader & lk then trwp and root.
I was wondering what's the difference between android 9 and android 10? Is it almost the same like I read at some post? Someone has updated to android 10 may share some viewpoints with us, thanks!
Already unlocked bootloader , root and xposed , phone recorder installed. Thanks to those pioneers.

donkeyman1234 said:
I recently brought Rmn8p with miui 11.0.6 (global) , wait to unlock bootloader. After that flash preloader & lk then trwp and root.
I was wondering what's the difference between android 9 and android 10? Is it almost the same like I read at some post? Someone has updated to android 10 may share some viewpoints with us, thanks!
Click to expand...
Click to collapse
Hey. I think this is widely discussed elsewhere. Just search for "MIUI Android 9 vs MIUI Android 10" in Google or YouTube. You'll find way more information there than you would ever find here regarding such generic topics. Have fun ?

Question Looking for 11.2.10.10 Modem from T-Mobile firmware

Hi all,
If someone could post the modem from 11.2.10.10, that'd be great!

The T-Mobile OnePlus 9 and OnePlus 9 Pro never got Oxygen OS 11.2.10.10, they went straight from Oxygen OS 11.2.7.7 to Oxygen OS 12 C.16. Click the link below to see what I mean.
Tutorials | T-Mobile Support

rmendez011 said:
The T-Mobile OnePlus 9 and OnePlus 9 Pro never got Oxygen OS 11.2.10.10, they went straight from Oxygen OS 11.2.7.7 to Oxygen OS 12 C.16. Click the link below to see what I mean.
Tutorials | T-Mobile Support
Click to expand...
Click to collapse
Oh darn, that sucks. If anyone has the latest Android 11 modem, I'll take that.
Thanks again!

Question Switch from ColorOS12.1 to OxygenOS 12.

Hello,
Could you help me please with switching from ColorOS12.1 to Oxygen OS 12?
I was reading the forum and found few guides how to do it and they are all related to downgrading to ColorOS 11, however, when I'm trying to do it it is always showing me "Verification failed" for downgrade file ROM. I have downloaded around 3 or even 4 different files but none of them worked.
Is there a way to switch to OxygenOS 12 without unlocking bootloader?
Thank you.

Anton_kr said:
Hello,
Could you help me please with switching from ColorOS12.1 to Oxygen OS 12?
I was reading the forum and found few guides how to do it and they are all related to downgrading to ColorOS 11, however, when I'm trying to do it it is always showing me "Verification failed" for downgrade file ROM. I have downloaded around 3 or even 4 different files but none of them worked.
Is there a way to switch to OxygenOS 12 without unlocking bootloader?
Thank you.
Click to expand...
Click to collapse
if have same code oos12 and coos12 you can switch coos12&oos12 but coos61 and oos48 now. can't downgrade. You can go a11 with rollback rom or msm tool

Question Need Some Help With Volte & 5G

I bought a tmobile oneplus 9 pro i was able to flash the eu msm tool rom and unlock bootloader was able to flash north america rom from oneplus website installed magisk by following this guide
[OnePlus 9 Pro][ROM][OTA][Oxygen OS] Repo of Oxygen OS Builds
As OnePlus doesn't always provide download links for all of their OxygenOS ROMs & OTA update zips, we've created an index to put the links in one post so that they're easy to find. Note: This is not a support thread for issues you may have with...
forum.xda-developers.com
Which allowed me to follow this guide to restore the modem
[TMO] 9 PRO MODEM RETENTION/DATA FIX
----- With the release of OOS13, the modem issue no longer exist. Thank you all for the support & help with this unfortunate issue, we had to endure.... ----- EXPLICITLY FOR TMOBILE 9 PRO (I'm not responsible for your failure to read or...
forum.xda-developers.com
However I don't have 5g as an option in network just 4g and although i have the volte switch in settings it doesn't do anything
I'd appreciate any help

you have to use oxygen updater and in settings set your device as OnePlus 9 Pro. not EU or India. just the regular one. Then download the latest OTA for that one. the issue is EU for whatever reason took 5G off that ROM. flashing the global version fixes it. You may have to msm first if you flashed the latest OTA already

Question Oneplus 9RT not getting Android 12 OTA

Hello guys I am not getting OOS Android 12 stable OTA update on my OnePlus 9RT 5g.
I am currently on OOS 11.3 vA.11
Any other solution other than Oxygen Updater App?

Do it by yourself manually. Download Oxygen Updater. Then download firmware and etc. Do you know how to do it? The whole process?