[OnePlus 7 Pro Questions & Answers] ThisIsCheez:
I posted a thread on this, commented on a couple other threads, posted on Reddit, and I simply cannot get straight answers across the board. All the feedback I'm getting is different. I am willing to PayPal friends and family $5 to the first person that can answer my questions with links to sources just so I can ensure the information I'm getting is correct. I haven't rooted a phone since my 1st Gen Moto X so I'm out of the loop, but have a understanding of everything.

I have a GM1915 OnePlus 7 Pro that is T-Mobile SIM unlocked. I followed the tutorials HERE and HERE to flash the global firmware and all went well. Only issue I had was my SIM was being detected but no service, so I did an OTA update to 10.0.3 and my service is working fine now. Here are where my questions begin:

1. Now that I have installed the international firmware I don't need to get a bootloader unlock from T-Mobile/OnePlus, correct? I can just use the OEM unlock option and unlock via fastboot?

I have had people tell me I am good to enable OEM unlocking and use fastboot oem unlock, others have told me I still need to request a unlock, others tell me to downgrade to SP3. I just need a straightforward answer: Can I use OEM unlocking or do I need to request an unlock from OnePlus?

2. I know bootloader/root can sometimes cause certain applications to not function, but I've also read Magisk has a setting to correct this. I'm mainly just concerned with Google Pay, is there a method for it to still function with root?

Again, I've had some people tell me I can't use Google Pay, Netflix, or anything like that at all, others tell me Magisk Hide and SafetyNet will fix this issue. I also had an individual state "However, recent changes coming might thwart this.". Again, can I use Google Pay or can't I?

3. Part of me would actually like to use the phone stock for a week or so to see if I even feel like I need root access. I am currently on OS 10.0.3, if I update to the newest OS (looks like 10.3.1 is the newest) will I still be able to root with Magisk and flash TWRP? I would assume yes since you can do an OTA update and keep Magisk, but I just wanted to verify.

So if I update to 10.3.1 can I still follow the same tutorial listed under question 1 and it will work? Doesn't the most recent version of TWRP/Magisk support 10.3.1? Or will I need to use MSM and go back to 9.5.X (can't remember the exact version, but it's the OS it puts you on when you follow the steps for international firmware flashing)? Can I even go back to 9.5.X after updating to 10.3.1? I see release notes for TWRP that state is now have Android Q support but I just want to ensure it's compatibile with 10.3.1 or whatever the newest OS is.

mauronofrio matarrese
2019-08-18T15:04:57Z
Upload New Blobs for Android Q

I know regardless my phone is going to get wiped, I just want to be prepared on what I need to do if I decide to root.

I don't need links to tutorials, there are plenty of them and I understand how flashing TWRP and Magisk works, I just need my above questions answered with sources. I have searched around for a couple days and cannot get straight forward answers for any of these. First to answer every question with sources I'll send $5 PayPal.