So as we all know M30s got October security on 15th October which I didn't expected so soon but its Samsung anything happens. 😂😂
Same like before June and July now we got 2 security updates September and October in same month.
It's just a security update so, don't expect something new.
I want to highlight some of the points or issues I observed.
First things first
1. Restart :
As usual smartswitch pc is still abnormal and gave me bootloop. I have to use odin again to update. It's smartswitch issue not update. Once update is done I didn't faced any restart /reboot issues.
2. Bloatware :
As I already have phonepe and I use it I didn't got any other bloatware but from other users I came to know only phonepe added. So, I didn't noticed.
3. Hotspot :
Yup still I don't have any issues with hotspot and I can easily connect my laptop and pc to mobile.
4. Network issues :
Increased further. 🤦♂️🤦♂️ Starting from June with every update network issues becoming worse. You can say that its network provider issue but trust me i used my same airtel, jio sims in S9, J7 prime, ON Nxt and vivo v15 Pro none of the mentioned devices has issues and I can get min 16mbps on same sims in those devices.
In M30s airtel not at all giving net after this update and jio at 500kbps.
5. Connectivity :
No, I don't have hotspot issues. But if you saw my previous post I mentioned I have WiFi issues it's still same stuck at 20-30mbps where others can get 50mbps.
BT - last update fixed my bt issue and for 10days not a once bt disconnected while using my headsets and buds. But after this update in 2 days they got disconnected more than 20 times.
6. Camera :
I observed that quality of pictures in 48mp mode is reduced. I see at 1x zoom itself picture is somewhat blurred which didn't happened before.
As confirmed by other front camera quality also reduced.
7. Ui lags :
Compared to before I see some lag while scrolling, gaming.
8. Dolby / audio :
If you are regular user of music, movies with headsets like me then you may observed or its me.. But I feel the audio quality is reduced. Dolby doesn't provide that feel and bass which I used to get before. I have JBL BT headset, realme buds q at 30% itself audio used to be loud with balanced bass and treble. But now even at 70% I can't hear vocals clearly.. Some noice or something is not good. Same headsets working fine in other devices and I tested with my friends apple airpods 2 and Samsung buds only issue with M30s.
9. Battery :
Backup is not bad. I didn't played games much just for 1hr/day and used YT, hotstar and prime much in these 2 days. This is the SoT I got with my usage.
It took 1hr 37min for 67% in fast charging.
Deep sleep drain :
First day 6% in 8hrs and second day 5% in 10hrs.
Edit : 19 Oct. So 2 days I was free and played Wcc3 online for hr and normal for 3hrs so total 4hrs gaming avg in 3days..
Deep sleep drain :
On 17oct 4% in 8hrs 25min. And on 18 Oct 9% in 14hrs 45min.
10. Ram management :
Ram management became worse in my device not able to use more than 3 apps in background.. Every 4rth app closes and restarts when I re-open. Yes background process set to standard only I don't or never change it. And avg ram consumption raised to 3.8gb seriously before it used to be 2.8gb max.... I checked memory details and nothings wrong with that but some hidden process or a bug.
11. Messages :
Users feel that something new in messages app but no useful cards is available before also.. Now UI just shows information of useful cards. That's it nothing new.
12. Calling :
The audio quality on call is drastically reduced. Before the audio quality is so good that I can hear voice even in heavy traffic or on bike. But now even in house without any disturbance also callers voice is soo low even in full volume.. For this I have to use headsets or put the call on speaker with low volume setting.
13. Biometrics :
Yaa no issues in unlocks but if it was a single app issue I would not have complained. All banking apps and biometrics enabled apps like gpay, paytm, kotak etc and WhatsApp has a delay of 5-10 sec to ask for unlock and to detect finger..
These are my observations.. Mention in comments if i missed any.. 🤗🤗
nahi bhai hum yeh likhe thae 
