Flash it in fastboot mode the same way you already installed it.
fastboot flash recovery_ab twrp.img(cmd)
or
./fastboot flash recovery_ab twrp.img(Power Shell)
then
./fastboot reboot recovery (Power Shell)
fastboot reboot recovery(cmd)
The 15 exists in 3 versions:
**24129PN74G=Global,** 24129PN74I=India, 24129PN74C=Chinese.
Pro only CN:
2410DPN6CC
**/I don't see any Global or Indian roms anywhere.
Perhaps:
Your career transmits on bands that the phone does not have or the CN model is blacklisted or defective.
Or whoever flashed the rom didn't leave the CN modem.
If the buyer wants to install custom ROMs, too bad to lock the bootloader but just in case it's here:
https://xiaomi.eu/community/threads/how-to-installation-stock-rom.74017/
Contact Xiaomi or your carrier:
* Use of eSIM requires a wireless plan. This plan may be subject to certain usage restrictions regarding switching service providers and roaming (even after contract expiration). eSIM service availability may vary depending on country/region and carrier. For more...
This site works very well, you must use a fastboot rom with Miflash or fastboot method, obviously for this the bootloader must be locked.
You can only use the roms for your devices, Xiaomi 13T (aristotle).