Database Info

[Q] Questions about hidden settings in Android 2.3

I have quite a few questions some hidden settings I found while using ANYcut app.
My phone is the Epic 4G and on Gingerbread leak EH17 if that matters.
1) MSL code. I did some google searches and found that is an algorithm to determine the ESP and other things. What is the algorithm? If a phone had a bad ESP could you change the MSL to make Sprint think there is a clean ESP?
2) Cell broadcast SMS. What is this? And what is it for? some of the settings are Emergency broadcast, administrative, maintenance, local weather, area traffic reports
general news:
local
regional
national
international
And those same options for other types of news also
3) Data Create. I think this one is self explanatory. But is this for the maximum number of each I can store on the phone before it deletes them. So if i set the maximum number of texts in my inbox to 500, that is the maximum I can store?
4) Dial up networking. I thought this was going to be the 3G but I was wrong. What is it? I turn it on and click on the connection settings but nothing happens why?
5) Dock settings. Its obvious. But I herd that you can connect your phone to the a computer via USB and have it act as a dock and play songs or videos through the speakers on your computer. Is this true?
6) DUN. It has a picture of a computer with 2 green arrows. And 2 progress like bars, labeled, RX and TX. Any ideas? I was thinking it might have to do with USB activity.
7) EVDO settings??? I am on the Sprint network. Why would they not opt this options out of there SDKs? Isnt EVDO T-Mobile network? But I am on a leaked build so maybe they haven't removed it yet?
8) Preconfig? I really not sure what this is. It says sales code and then an input field. And at the bottom a button that says install and one for cancel. What would this be for?
9) License settings. most of the options are obvious but there is one for expiry reminder. whats that? reminds you when your DRM content is going to expire?
10) MMS Provision Settings. some settings are transaction logs, optional field attendance, UA string, UAP url, and test modes. Anyone know what this is for?
11) Now one that is just called advanced. Some options are home orig. vocoder. homepage vocoder, roam orig. vocoder. whats this for?
12) USB Logging(DM) One section is Function, with the options of, enable and disable. And other section called Type. the options are CP only, AP only, CP+AP. No idea about this one
13) WiMAX CT. there is a button at the top that says open device. then options of max num of used FA, FA Index, BW, FA index. Are these settings for WiMAX networking?
14) WiMAX Mode Change. The options are, SDIO, WTM, DM, USB, Auth modes. What are these different modes and what do they do?
15) WiMAX LineTest. Optioins are, write eeprom, power on, power off, write mac with and input field, and read mac. any ideas??
16) Work mode. it says Work Mode :2 and then a button that says set work mode. and i can set it to 1, 2 or 3. what are these different modes for?

Bump - Anybody want to jump in and help the op?
Wow, with all the brilliant minds on here no takers? Or is the question too big for anyone to take a stab at?
First off, as someone who somehow burnt out my 4G chip, I would suggest that anyone reading this be very careful, search here and google before fiddling with settings. lol
Since I am doing research to see if I can get my Wimax to work better I will answer a couple of questions a day, however anyone feel free to jump in.
1) MSL code. I did some google searches and found that is an algorithm to determine the ESP and other things. What is the algorithm? If a phone had a bad ESP could you change the MSL to make Sprint think there is a clean ESP?
The MSL code or (Master Subsidy Lock) is how a phone carrier keeps the phone from going to another network, however some phones including the E4GT can be found through using Android Debug Bridge (adb) a command line tool that lets you communicate with an emulator instance or connected Android-powered device - or even easier just go to the market and download, for free, Get My MSL which will display your Master Subsidy Lock code.
2) Cell broadcast SMS. What is this? And what is it for? some of the settings are Emergency broadcast, administrative, maintenance, local weather, area traffic reports general news:localregionalnationalinternationalAnd those same options for other types of news also
According to Wikipedia:
Quote:
Cell Broadcast is not as affected by traffic load; therefore, it may be usable during a disaster when load spikes tend to crash networks, as the 7 July 2005 London bombings showed. Another example was during the Tsunami catastrophe in Asia. Dialog GSM, an operator in Sri Lanka was able to provide ongoing emergency information to its subscribers, to warn of incoming waves, to give news updates, to direct people to supply and distribution centres, and even to arrange donation collections using Celltick's Cell Broadcast Center, based on Cell Broadcast Technology.
All for today. Peace

[App] Wi-Fi CleanUp v.3.0

I recently faced a nasty problem with my device, I had to keep on re-entering the Wi-Fi key of a specific hotspot even if I had managed to connect successfully on previous attempts.
Also as I leave the Wi-Fi on most of the times, I started to get a bit uncomfortable when the device connected by itself to an Open Network (one of the many around my place) and got notifications (Adverticements).
I am sure I had connected before to that Open Network but did not bother to 'forget' it.
As a result, I created this app which helped me resolve the next problems:
a. Having to re-enter the Wi-Fi of certain hotspots by removing all instances of the same secured network that may have been mis-configured.
b. Slow loading time of Wi-Fi settings by maintaining a shorter list of configured networks.
c. Automatically forget Open Networks.
d. Assign a friendly name to a network (while being displayed in this app).
e. Assign a friendly name to a hotspot (BBSID) of a network (while being displayed in this app).
f. Automatically restrict connection to a specific BBSID (Further changes are planned to restrict the connection to a set of BBSIDs, this is still experimental).
As an overall,
this app offers the possibility to forget (remove them from the configured list) Wi-Fi Networks (Open, Secured) from your device in a convenient way:
- Assign a friendly name to a network (and its hostspots - BSSIDs) (Touch the 'Name' label of the network).
- Display the signal level of a network (and its hotspots - BSSIDs) and be able to connect to it (Touch the 'Signal Level' indicator of the network).
Also it is possible to explicitly connect to a hotspot for a network (restricts any automatic connections to this specific BBSID).
[Experimental] Connection can also be restricted to a set of BBSIDs.
- Forget manually selected Secured Networks/Open Networks with a few clicks (Favorites are excluded).
- Automatically forget Open Networks when not in use (Favorites are excluded).
- Mark a Network as 'Favorite' so that is not forgotten by mistake either manually or automatically.
- Show a Notification if the Wi-Fi is on but no connection yet.
This is the Google play link:
https://play.google.com/store/apps/details?id=cs.anddev.wificleanup&hl=en
No root access required.
Permissions Explanation:
- Connect and disconnect from Wi-Fi. Needed to get the Wi-Fi status.
- View network connections. Needed to get the status of a Wi-Fi connection.
- View Wi-Fi connections. Needed to get the list of Wi-Fi connections.
- Run at startup. Needed to get the Wi-Fi connection status without running the app.
Changes for v.3.0:
- Show a Notification if the Wi-Fi is on but no connection yet.
- Assign Friendly name to a hotspot (BBSID) of a network (Touch the 'Name' label of the network).
- Display the signal level of a network hotspots and be able to connect to any of them (restricts any automatic connections to this specific BBSID). Further changes are planned to restrict the connection to a set of BBSIDs. This is still experimental and can be used once it is enabled from the Settings menu.
- Access Wi-Fi settings
- UI changes

Wi-Fi CleanUp v.1.1
Hi all,
new version is out (v.1.1) with the next added functionality:
- Automatically forget Open Networks when not in use (Favorites are excluded).
- Mark a Network as 'Favorite' so that is not forgotten by mistake either manually or automatically.
Enjoy
Chris

Wi-Fi CleanUp v.2.0
Hi all,
new version is out with the next added functionality:
- (v.2.0) Assign Friendly name to a network (Touch the 'Name' label of the network).
- (v.2.0) Display the signal level of a network and be able to connect to it (Touch the 'Signal Level' indicator of the network).
Also bug fixes and UI changes.
Enjoy
Chris

Would you be willing to pick up where Wi-Fi Ruler left off? I've emailed the author, with no luck, several times to ask if he can help me troubleshoot whether its my phone (SM-G920T) or his app that needs tweaking. Basically, his app allows us to rank what SSIDs are more desirable (in our eyes), and is *supposed* to allow us to use BSSIDs to make choices. Prime example: "xfinitywifi" is all over the country now, but I only want to connect to the 'xfinitywifi' signal in one location, not everywhere. I can't tell if his app is working perfectly, but it's my Samsung GS6 (5.1.1) that keeps usurping the app because it only knows that I "remembered" xfinitywifi once, so I must want to connect to it everywhere and anywhere.

Where to find the app? Link? Am I blind? Can't find...

great

@bwb8771
Sounds interesting idea, let me do some investigation and I will revert. @Technical
This is the Google play link
https://play.google.com/store/apps/details?id=cs.anddev.wificleanup&hl=en

Hi bwb8771
I am in the process of making a prototype as a proof of concept, will you be willing to test it for me?
If yes, pm me an email to send you the apk.
Thanks

Technical said:
Where to find the app? Link? Am I blind? Can't find...
Click to expand...
Click to collapse
me too, cannot find it..

I have added on the first post the Google play link.

chrisstavrou said:
I have added on the first post the Google play link.
Click to expand...
Click to collapse
great

Wi-Fi CleanUp v.3.0
Hi all,
new version is out with the next added functionality:
- Show a Notification if the Wi-Fi is on but no connection yet.
- Assign Friendly name to a hotspot (BBSID) of a network (Touch the 'Name' label of the network).
- Display the signal level of a network hotspots and be able to connect to any of them (restricts any automatic connections to this specific BBSID). Further changes are planned to restrict the connection to a set of BBSIDs. This is still experimental and can be used once it is enabled from the Settings menu.
- Access Wi-Fi settings
- UI changes
Enjoy
Chris

S6 unable to see test mobile network

I'm building a test mobile network on some laptops and with a software defined radio based on Open AirInterface (is googleable, but I can't post the link cos I'm a newb) code, and I have this up and running. Additionally, I've bought some programmable SIMs to work with it on a bunch of phones. The information on these I've added into my HSS implementation. The Country Code/Network code deployed on the SIMs is 901/70 - so it doesn't interfere with commercial networks.
I'm testing with a bunch of phones in an isolation chamber, and my end goal is to shift the network into something I have a license for and "go public", but this network will have a low channel bandwidth (3MHz or 1.4MHz in Band 3 LTE). Not many phones have supported this, so I started with a 5MHz channel, which most do support - and I've successfully connected an S4 and a Nexus to my little network. However, when I tried the S6 with a SIM that worked in another phone, it cannot even see the network. I've seen hints of Samsung doing operator whitelisting, but would like to know if this is the case and, if possible, how to add my operator codes into the whitelist.
So far, I've tried the following:
a) "*#0011#" puts you into ServiceMode where you used to be able to enable/disable frequency bands and other such settings with the "Q0000" menu entry - but it looks like Samsung have squished this, also I know the phone has Band 3 operational as I can put a commercial SIM in it that runs on that band. I've not found any way of actually modifying any settings within this mode.
b) I found the file "/system/etc/apns-conf.xml" which contains a list of operator APN addresses - I updated mine to contain my settings, but no joy, and if I "reset to default" my APN settings, my settings are not picked up and I have to manually add my APN (but at least that stays selected)
c) I found some databases in "/data/data/com.android.providers.telephony/databases/", in particular "nwk_info.db" and added my network details to it. The phone then changed from basically saying I was only able to make emergency calls to "Selected mobile network (901/70) unavailable", which kind of at least hints I've moved it in the right direction
The S6 is running a rooted factory reset, and allows SIMS from two different commercial operators on it so it should be completely unlocked. It's never been out of the country, so should have "defeated" the region locks that Sammy put on the phones nowadays (although it begs the question whether rooting the phone resets this and perhaps it's still awaiting 5 mins of calls via a local SIM?).
Does anyone know of a whitelist of MNC/MCC numbers I can add my settings to? Or any other possible solution to this?
The long winded solution is to change the MNC/MCC info on each of my SIMs, but that's a PITA and I'm not even sure it'll work yet (I will attempt to try one soon, but changing the configs on my mobile network is also non-trivial!)

Cannot force 3g since Android 12

Phone: Unlocked 4a. Network: Verizon
I have a macro that enabled me to switch between 4g LTE and 3g by toggling the value of the the system setting "preferred_network_mode" between 8 (LTE,CDMA,and EvDo and 4 (CDMA and EvDo). I also would toggle preferred_network_mode1 and 2 as well. Then, switching off and on airplane mode would enable the setting.
After the upgrade to android 12 (or possibly one of the monthly security updates) I can no longer force 3g. The preferred_network_mode value gets updated to 4, but the phone does not change from LTE, even after a restart.
Is there another setting that must be changed in 12 to enact that network change or did they kill that functionality altogether?
And before anyone asks - I know 3g is dying, but I live in AZ and many rural areas have no 4g but still get coverage fine with 3g. I'd like to keep using it until VZW turns it off completely.

PhxCliff said:
Phone: Unlocked 4a. Network: Verizon
I have a macro that enabled me to switch between 4g LTE and 3g by toggling the value of the the system setting "preferred_network_mode" between 8 (LTE,CDMA,and EvDo and 4 (CDMA and EvDo). I also would toggle preferred_network_mode1 and 2 as well. Then, switching off and on airplane mode would enable the setting.
After the upgrade to android 12 (or possibly one of the monthly security updates) I can no longer force 3g. The preferred_network_mode value gets updated to 4, but the phone does not change from LTE, even after a restart.
Is there another setting that must be changed in 12 to enact that network change or did they kill that functionality altogether?
And before anyone asks - I know 3g is dying, but I live in AZ and many rural areas have no 4g but still get coverage fine with 3g. I'd like to keep using it until VZW turns it off completely.
Click to expand...
Click to collapse
Can't you just change that on SIM settings?
There's an option there to choose the preferred connection type. If you choose 3G there, it doesn't work as preferred?
I thought that was that option porpouse.
Cheers!

The SIM settings only allow Global, LTE/CDMA, or LTE/GSM/UMTS.
There is no CMDA/EvDo option.
Manually setting the preferred network mode to 4 should override those options and force CDMA mode, unless the system variable that determines network mode has changed with Android 12.

How To Guide [GUIDE] Device Settings Menu Guide, Tips & Discussions | Part I - Connections

Device Settings Guide, Tips & Discussions
Part 1 - Connections
If you're new to this series or want to see the index, please read Post #2 first.
​
Wi-Fi
Click on Gear icon besides any network:
View supported Network speed and security
Auto reconnect: If on, automatically connects to this network when Wi-Fi is ON. Switch it off for backup Wi-Fi i.e. you can keep it ON for 5 GHz network and OFF for 2.4 GHz so that it always connects to 5 GHz automatically.
Manage Router: Opens up the router admin page by going to your Gateway IP Address.
IP Settings: Choose from DHCP or Static. If you want to use custom DNS, you have to use Static IP. If you want to know the Network info like IP, Gateway or Subnet Mask, choose Static once and note the displayed info.
Proxy: Set manual or auto-config proxy here.
Click advanced to show:
View device's MAC address and allocated IPv6/IPv4. Learn about MAC and IPs here.
Metered Network: If you set a connection as metered, you or device can restrict background processes, big downloads and save data.
Randomized MAC: Devices are supposed to have a permanent MAC but this could be used to track you. From Android 10, you get an option to use randomized MAC each time your device connects to Wi-Fi. You can disable this if you use MAC Filtering on your router.
QR Scan (icon on top-right): Connect to Wi-Fi without entering password. Use a device that is already connected to the network and scan the QR code displayed by the former.
Menu > Wi-Fi Direct: Turn on Wi-Fi Direct on a nearby device as well to transfer files wirelessly and fastly. Works best with Samsung Devices and it does NOT require connection to a Wi-Fi network. You get speeds maxed out at the supported wireless speed of your devices! It is a better and more secure alternative than ShareIT or JioSwitch.
Menu > Advanced:
Sync with Samsung Cloud: Backup your Wi-Fi usernames and passwords and use the same on synced devices.
Switch to mobile data: If your Wi-Fi network quality drops, use mobile internet directly even if Wi-Fi is still connected (needs Mobile Data to be ON). You can add (Wi-Fi) Network Exceptions to prevent switching. Get notified to Allow individual apps to switch to mobile data i.e. if WhatsApp is blocked on your college Wi-Fi, you can allow WhatsApp to use Mobile data while keep using the Wi-Fi!
Turn on Wi-Fi Automatically: Your device will automatically enable Wi-Fi where you use it frequently. For example, you or your device can turn off your Wi-Fi when you go out and you won't need to enable it again when you get back home (you can configure the frequent networks after they appear here). Tasker used to handle this job for me (try IFTTT for simpler setup) but now the OEM solution is more optimized.
Wi-Fi power saving mode: For example, if you get WhatsApp messages every 30 minutes on average, the device learns about this traffic pattern and can toggle Wi-Fi accordingly to fetch notifications every 30 minutes. I keep this disabled as my usage pattern is dynamic like most of you. Better use App Sleep or Hibernation Apps like Greenify to save battery. Learn more about this mode here.
Wi-Fi control history: View apps that have toggled Wi-Fi recently. You can figure out if there's any culprit app that is toggling your Wi-Fi frequently when you have explicitly turned it off/on.
Hotspot 2.0: Automatically connects to APs that support Hotspot 2.0 or 802.11u. Network providers are themselves upgrading existing Wi-Fi in public areas like airports and encryption is a must for Hotspot 2.0 so you can trust and rely on it while you don't have to manually guess the right network. Learn more about Hotspot 2.0 here.
WPS push button; WPS PIN Entry: (Pie doesn't support WPS but Google says it's coming back, Read here) Connect the device to WiFi by pushing WPS button on the router or entering WPS PIN in case these are enabled on the router. Learn about WPS here.
Install network certificates: Normally not needed. Some organizations would need you to install certificates to access their domains. Same as what you do on a PC to install certificates.
Wi-Fi Calling
(Formerly VoLTE calling) Uses Wi-Fi to transmit voice instead of the mobile network but they still appear to be done via your SIM or number. This saves your mobile plan and also beneficial when you have low mobile network inside your home but good Wi-Fi! You'll see the SIMs in case the carrier supports VoLTE calling. #JioWaale
Bluetooth
When the Bluetooth is ON, you can STOP/SCAN for nearby devices manually. Keep BT on for playing with the following settings.
Menu > Advanced:
Sync with Samsung Cloud: Note that this only sync Samsung devices like Galaxy Home Speakers and Galaxy Buds.
Music Share: Enables your friends (or else) to connect with a speaker connected to your phone without requiring you to unpair and them to pair with the speaker. Useful in cases like you want your car to be always connected to your device. However, on a trip, your friend wants to play music from his phone while you drive. Get more explanation here.
Ringtone sync: Sync the ringtone you set on your phone to the connected speaker. I did not know they played different tones!
Bluetooth control history: Similar to 'WiFi control history' above.
Block pairing requests: Block spammers to request pairing.
Bluetooth scan history: Shows apps that scanned for BT devices. Review this once in a while as Apps can scan even when the BT is off!
[Discontinued] Dual Audio: Enables your device to connect to 2 different audio devices and play the same audio on both of them. Samsung explains this here.
[Discontinued] Media volume sync: In case the connected audio device supports this, you can change the player's volume by your device's volume rockers by enabling this i.e. you don't have to manually raise the volume to the fullest on both your device and the connected player to get the highest volume possible for your house party.
[Discontinued] Phone visibility: (Moved to Separate section after Bluetooth in Pie, please tell if it works for BT as well) Allow devices (with Samsung Connect) to find your device for connection. You can disable it unless you live in a Smart Home or transfer files from other devices more often. Learn more about this mode here.
NFC and contactless payments
It's turned ON by default on a new phone so do turn it OFF first. Samsung Pay will turn that ON if needed. Samsung Pay uses only NFC now starting from S21. MST is discontinued though no other brand could use this for payments. In case you don't know about MST (patented by LoopPay), must-read here. More information on the discontinuation in the FAQ.
[Discontinued] Android Beam: Allows you to share stuff when you tap your phone with some other-phone-with-already-enabled-NFC.
Contactless payments (Formerly Tap and pay): Select the default app for Payments and Others. Your default app will open up when you, for instance, tap your phone on an NFC-enabled POS (of course you need NFC to remain ON beforehand).
Pay with currently open app: By enabling, if currently opened app supports payment, it will used instead of the default app above. I have kept it enabled because I don't want Samsung Pay to open up when I know I am going to use GPay!
[Discontinued] Default NFC Method: By default and normally needed, 'Auto select'. In case you are the curious breed, learn about the different options here.
Flight Mode
Disables your operator's network. Since enabling this will also disable Wi-Fi and Bluetooth altogether, you can turn back these two on without toggling flight mode.
Mobile networks
Data roaming: Enable it if your carrier doesn't charge you for roaming or you're rich enough.
Network mode: By default, 'auto connect'. You can play with the options in case you're facing network mode changing issues or want to save battery (put to 2G only). If your region does not have 5G yet, you can go back to 4G/LTE to save battery!
Access Point Names: I recommend you to request or configure your operator's settings for the first time even if it had been automatically fetched. Nerdy guide here.
Network operators: Suggest usage?
Data usage
Data saver: Formerly known as 'Restrict background data'. Your background apps will stop using network data i.e. you'll receive WhatsApp notifications only when you open the app again. You can also whitelist apps in 'Allowed to use data while Data saver on'. This feature can help a lot in saving battery or making you check the phone less when you're hanging out with your girl. Me no girl so no enable!
Mobile data usage; Billing cycle and data warning: Do check this in a while to review the apps that use most of your mobile data (maybe you don't need those apps that much on mobile data); Change your operator billing cycle, set data warning and enable data limit in case your operator doesn't give you free GBs. The app options you change here will be reflected in the Data saver section above.
Mobile data only apps: You can choose apps that you only want to use mobile data. Useful in case your organization's Wi-Fi blocks some apps like WhatsApp. This is related to 'Allow individual apps to switch' in the Wi-Fi section.
Wi-Fi data usage; Restrict networks: Like mobile data, you can also review your Wi-Fi usage! Do review it once in a while to identify data-hungry apps that can affect battery and CPU as well. The apps you disable here for background usage will be blocked while Mobile Data is on OR the Wi-Fi is metered. Please confirm?
SIM card manager
Select Icon, Name and Network mode (described above) for the corresponding 'SIM slot' (not the SIM). Select preferred slot for calls, messaging and data. Learn about Smart Dual SIM here.
Mobile Hotspot and Tethering
Mobile Hotspot > Advanced:
Wi-Fi sharing: In addition to mobile data, you can also share your Wi-Fi. This can be helpful in case you don't want to reveal your network or its credentials or don't know about them. Also, your device can become a repeater for devices that are too far away from the Wi-Fi (keep your phone on charging).
Security: Use 'WPA2/WPA3-Personal' (Learn about wireless encryption here).
Timeout: Keep timeout low so that hotspot turns itself OFF earlier in case there's no client or change to 'Never Timeout' if you are going to need it for some time.
Hidden network: Enable 'Hide my device' to stop exposing your SSID.
Power saving mode: Similar to PMS in Wi-Fi Advanced. Keep Protected Management Frames (PMF) on by default and change in case the client doesn't support.
[Discontinued] Menu > Allowed Devices: Enter MAC addresses of clients you want only to connect to your hotspot. Same as MAC filtering in routers.
Mobile Hotspot > Auto Hotspot: You might get this ON by default. Turn it off! This enables your or family devices to share your internet connection via Hotspot. You know when you need it!
Bluetooth tethering; USB tethering; Ethernet tethering: Learn about BT/USB tethering here.
More connection settings
Advanced Calling & Messaging: Some iMessage kinda thing? Anyone?
Nearby device scanning: Although it uses Bluetooth Low Energy, I have it disabled. If you enable it, you get notifications for nearby devices like TVs that support connections through your device (will annoy you at airports).
Printing: Do download Google Cloud Print and any other printing plugin required by your or your organization's printer.
[Discontinued] MirrorLink: Learn more here.
[Discontinued] Download Booster: Uses both WiFi and LTE at the same time to download apps over 30MB from Play Store and Galaxy Apps. In case you want that app as soon as possible.
VPN: Configure your VPNs here in case you have. I use Psiphon. You can also manually configure profiles as you do on PC.
Ethernet: Yes, you can use a wired connection on your device too. Discussions here.
Private DNS: Supports DNS over HTTP/TCP and I recommend reading about this here. I use 1dot1dot1dot1.cloudflare-dns.com.

Series - Full Menu Guide Explained
Series - Device Settings Menu Guide​
Hey XDA! I just got free from the initial setup of my Galaxy S22 Ultra. I don't know how many of you do this but I'm one of a kind that gives a considerable amount of time to explore every setting, feature and every single option whenever I get a new device or even when I factory reset the existing one. It's been years since I have started with this curiosity and I have never found an 'all-in-one' menu guide to explain each and every option in the device. Yes, you could also simply google the option you want to know about but how about compiling all of them in one guide? I don't know if this experiment would work or not but here's I am starting with this. I have spent the past three weeks taking out time whenever I could to compile this guide.
There are a couple of reasons I had decided upon to start with this series. Firstly, I want to help newbies (or even experienced) out there to explore and know about every feature or option your device could offer. I have seen many duplicate threads that are created every day to query fellow users even about an individual but unfamiliar option in the settings. I intend to do my bit to clear this clutter and help potential askers to get answers beforehand. Secondly, this guide could serve as a manual in case you want to find or get briefed about an option. You could then simply 'Find in a page' over the threads or simply use XDA's 'search in the thread' option to save your time. Thirdly, since I've broken the settings into different threads, this could help users engage and discuss over a particular device's super-menu and spread their knowledge, come up with new ideas and explore more of their devices. Fourthly, this series is not constrained to Note9 only. The settings on every Android device out there is similar and you would be able to find any common to your device settings here as well. Fifthly, since I have provided links and sources to some options, this can serve as directory map as well. Sixthly, this guide consists of tips for many options that you won't probably find normally.
This guide is intended and recommended to be read by anyone at least once. If you're reading a thread for the first, I recommend you to open up the corresponding settings in your phone and read the settings description in case there is. All the threads are arranged in the same order as the settings would come up. You could then simply read out my description of the same, my selected configuration and hyperlinks to some articles or videos in case you're the curious breed. This guide is strongly recommended after a fresh start. I want you all to give some time to explore each and every option your device can offer.
Hope this experiment lives up to the marks. Both criticism and appreciation are greatly needed and appreciated. Please comment.
I've tried to explain each option you could find by going deep into any setting. No matter whatever links I have provided, I will feel grateful if you want me to explain any feature more than I have done already. Please ask questions related to any settings. Do provide me suggestions and your take on my configuration. Please provide me with more guides and articles for a particular feature. I want to have the precious contribution of XDA members in this guide. Discussion over any feature, setting, your configuration, did-you-knows and anything else is greatly appreciated. This is a newbie-friendly place so don't hesitate to ask questions - besides the fellow XDA members, I'm always here for you.
Regards,
Paras Lehana
Index
Part 1 - Connections
Part 2 - Sounds and vibration, Notifications, Wallpaper and themes
Part 3 - Display, Lock screen, Biometrics and security
Part 4 - Advanced features, Device maintenance, Apps
Part 5 - Cloud and accounts, Google, Accessibility, General management, Software update, User manual, About phone, Developer options​

FAQs
Why did Samsung discontinue MST for Samsung Pay? (Contributed by @sansart)
Ans: With big card companies like Mastercard ditching Magnetic Stripes due to security concerns, Samsung could be taking a step in this direction. Starting with Galaxy S21, Samsung discontinued MST and, in a statement, it added: "Due to the rapid adoption of near field communication (NFC) technology by consumers and businesses, beginning with devices launched in 2021, Samsung Pay will focus its support on NFC transactions, across the Galaxy portfolio. While future devices will no longer include magnetic stripe technology (MST), customers with previous, compatible Galaxy devices will be able to continue using Samsung Pay, including MST." (Source: The Verge)
Mastercard nicely explains about ditching Magnetic Stripes here: Swiping left on magnetic stripes

Good read, thanks! I think your NFC section needs updating though, Samsung no longer uses MST.

Updated. FAQ too. Thank you for contributing!
Since S22U is my upgrade after spending over 3 years with Note 9, I was doubting about the MST thing after the payment failed once. Now I have read about it. Thanks again!
sansart said:
Good read, thanks! I think your NFC section needs updating though, Samsung no longer uses MST.
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