Vivo Y22s -v2206-qcn Xqcn Fsc Fsg Modemst1 Mode... _verified_ Online
For MediaTek V2206, do use QPST. Instead use:
Here's a more detailed, step-by-step guide to help you enable the -V2206-Qcn Xqcn Fsc Fsg Modemst1 mode: vivo y22s -v2206-Qcn Xqcn Fsc Fsg Modemst1 Mode...
Then reboot and check baseband.
fastboot erase modemst1 fastboot erase modemst2 fastboot reboot For MediaTek V2206, do use QPST