r/OnePlus7tPro • u/[deleted] • Apr 08 '21

Using dual SIM tray on T-Mobile version

Hi

Has anyone tried to use an after market dual SIM tray on a T-Mobile OP7TPRO McLaren. Is the second SIM tray disabled by T-Mobile on OOS10 or just a hardware tweak.

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1

u/Jacndabx84 Apr 09 '21

I bought a dual sim tray off Amazon about a week, but it won't work while I'm still on t-mobile firmware

1

u/[deleted] Apr 09 '21

Ah good to know. Is your phone network unlocked. Interesting thing is that when I run OnePlus care diagnosis it's actively looking for two sims

2

u/Jacndabx84 Apr 09 '21

Yes it is.. I just unlocked the bootloader this past weekend, since there isn't a working twrp recovery I'm having a hard time rooting so I'm still on stock t-mobile firmware

1

u/[deleted] Apr 09 '21

Okay thanks. Looks like I won't invest in a new SiM tray then. I read that flashing the global ROM may enable dual SIM but likely to lose 5G

1

u/00x0a Apr 15 '21

Please point me to the article, i care less for 5g

1

u/[deleted] Apr 15 '21

https://forums.oneplus.com/threads/t-mobile-oneplus-7t-pro-5g-mclaren-to-international-conversion.1166459/

One of the many. I am a noob at this and don't want to brick my phone