I had used many Samsung phones ( first one was Galaxy S and various models of S series and all the Note series) and I had never encounter "Your connection is unstable" . Your assumption that this " only happen to all the Samsung phones right?" is definitely incorrect
Also I had also never faced such error messages in all my other Android phones or tablets too
It could be your area poor connectivity and has nothing to do with the phone

Samsung sales had dropped by 8% while the rest market share has gone up. They will be working hard on S6 to boost back their market share . China makes which are cheaper are a bigger threat to them.

Root phone n use Titanium Backup to uninstall or freeze all bloatware
With xposed mod install cum greenify pro n intelli3g app you can reduce very much battery usage on standby
Easily 6-7 hours SOT on this phone

Just uninstall or freeze anything you dont want. No need such list. Is safe as core stuffs you will not be able to uninstall or freeze it

Use the app wifi file explorer pro to transfer files to n fro between phone memory or ext sdcard to PC
No need to use USB cables
Is very much faster transfer method vs thro USB cable
Get the paid version as free version very limited features

Infact I find the GPS lockup on this Note 4 is way faster than my other iPhone 6+

Can your set LTE works here ?

iPhone doesn't has SOT measurement . It has what is called "battery usage" - this basically tells you how many hours you had used to date. Is actually a more accurate measure than SOT. In Android eg if you play music with the display off, SOT is not recorded if display is off but battery power is being consumed

I have both Note4 and ip6+
Generally the ip6+ is simply an overpriced n over exaggerated phone. Its only major advantage over Note4 is its insanely greater battery life of approximately double that of Note4
Other minor advantages of ip6+ is its slightly better audio n sunlight viewing.
Overall I prefer Note4 as daily phone
The closed file system of ip6 is very restrictive n thus make it a bad business phone. Those who does lots of email w attachments n sharing of stuffs will simply hate it

You are still a student, right ??

Use app XDA as is formatted for mobile. No such issues on mine even on web version. My phone is rooted n such ads are blocked

I am happy with Note4 battery life averaging 6-7 hours SOT. It has a 2k display n way much better and about double that of previous Oppo Find 7.
However ip6+ thrash it badly with double that in battery life.

Root phone n install wanam xposed. There is option to disable it from appearing in notification window

You need root and try using this : APP MultiWindows app . Had never tried this before as since my phone also rooted, I use Wannam Xposed as such options available there too
Or google for such mods at forum XDA ( again you need root)

This post has been edited by benny888: Nov 27 2014, 04:55 PM

I strongly disagree with this test report. It doesn't even state under what conditions was the phones tested
My personal experience with 80% on internet stuffs ( browsing, email, RSS, whatsapp, tweeter), ebooks n some YouTube videos

Note 4 : SOT 6-7 hours
Mate 7 : SOT 9-10 hours
Ip6+ : usage 11-12 hours

This post has been edited by benny888: Nov 27 2014, 05:52 PM

How to mod ip6 ? Is not android!!
Out of box since day one till now battery life is excellent. Some users even reported 12-14 hours
I need not do any tweaks. In standby mode , battery level literally doesn't drop at all.
The only impressive stuff of ip6+ vs Note4
Those here who owns both ip6+ ( not ip6) n Note4 will confirm ip6+ battery is way much better than Note4
With similar usage I only need to charge my ip6+ once every 2+ days while Note4 I'd need to charge it every day

This post has been edited by benny888: Nov 27 2014, 08:09 PM

I wont say Note 4 has crappy battery life - what do you expect from a phone with 2K display ? 6-7 hours SOT for me is already very good. My previous 2K display phone Find 7 only 3-3.5 hours SOT only
But Note 4 personally I feel is a way much better and functional phone vs ip6+. Anyway ip6+ file restrictive system is just unsuitable for me. It is so troublesome to locate files, manage files on phone itself , emailing with multiple attachments and very poor sharing info from FB, RSS, Tweeter, Newsfeed. I had given it up and will pass it down to one of my family members for general usage

This post has been edited by benny888: Nov 27 2014, 08:45 PM

3.5 hours SOT is bad. Do check your wakelocks - these are stuffs that continually works in background. Use Greenify Pro to hibernate all such apps that you do not need. If you are rooted , install xposed mod cum intelli3G - these will reduce very much battery drain with phone on standby

My finger print detection has always been bad. However it was a breeze on Mate7 ( just tap slightly) while erractic on ip6+ . No wonder HW CEO claim their finger print scanning is best among smartphones.

Singapore is selling only SD version.