I've been using 4 different modded apk from several VIP forums and I'm the type of person who always read the full tutorials, instructions and even read the whole pages at the forum to know what's the best way to use the mod.
So, based on my experience, sometimes Garena team will be checking and sweeping out their system aggressively, I don't know the exact time they will do it. Sometimes the mod will be detected easily and sometime not. So, it's clearly 100% banned no matter what, even if you don't use any mod features you will still get detected and banned. All we can do is just enjoying the time when they are not aggressively checking out their system (loophole time).
Usually, at midnight 00.00 GMT+7 (or any time in your country) is the vulnerable time for every cheater to use any modded apk. So I don't recommend you guys to use modded apk at that time. But once again, there is no exact time for us to know when they will patrol on the system.
Also, if you ever got banned by using cheat, I'm pretty sure your device will be monitored by them. The best way you need to do is factory reset your phone to reset your device ID or token.
NEVER EVER USE THE CHEAT OBVIOUSLY, play safe, aimbot feature is not really recommended. If you use no recoil feature you can camouflage it by using gyroscope, so it will slightly make it like legit.
Don't be envy with other people who never got banned by using the cheat, because maybe some people just lucky enough to get away with it.
Finally, CHEAT=BANNED. Use it wisely and be prepared with the consequences.