Thanks for the reply, I have read the thread a few times over, that's why I have posted my question as I'm confused, there seems to be the two methods and both works?All the answers to your questions can be found in the posts above.
1. flash 13.0.8 via fastboot and update sequentially to 13.0.11 via twrp as mentioned by SirTAVARES
2. directly installing v6.2 twrp and flashing the latest v13.0.11 via twrp as mentioned by youi flashed .8 via fastboot and then i've been updating via twrp (currrenly on .11) that was already in it.
just want to be sure if both methods work and if there's a recommended method for flashing for the first time from China ROM. thanks!!Remove lock screen security
You must have Twrp installed.
Wipe/format data type yes(if error, red , lines,reboot TWRP and format again)
Put the zip in internal storage or use OTG
First boot takes time.
Apart from the 1st rom, no more Fastboot.zip.
Updates are done via OTA.