Please tell us some basic information before asking for help:
Model Name: ROG Phone 5 (ZS673KS)
Firmware Version: latest
Rooted or not: none
Frequency of Occurrence: 1
APP Name & APP Version (If your issue relates to the app): facebook
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
I was playing facebook, my smartphone suddenly went off. I tried turning it on but it won't turn on. Just out of warranty only a few months From the information found that friends who use this model have all the same problems.
Ask a repair shop, it's very expensive. Send to the service center, not to mention The price is probably more expensive. from a smartphone that calls itself a flagship It must have been converted into an expensive paperweight.